Siemens SENTRON 3WA1 Manual

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Troubleshooting

Summary of Contents for Siemens SENTRON 3WA1

Page 3 3WA1 air circuit breaker Introduction Description SENTRON Applications Accessories Protection devices 3WA1 air circuit breaker Inspection and maintenance Technical specifications Equipment Manual Integration in power distribution equipment Troubleshooting Disposal Appendix ESD guidelines List of abbreviations 02/2023 92310000002-06...
Page 4 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.
Page 5: Table Of Contents
Table of contents Introduction ............................17 Scope of validity of this document ....................17 Target readers of this documentation ..................17 Technical Support ..........................17 Reference documents ........................18 Advanced training courses ......................18 Safety instructions ........................... 19 1.6.1 Security information ........................20 1.6.2 Open Source Software ........................
Page 6 Table of contents 2.3.5.4 Instantaneous short-circuit protection INST ................55 2.3.5.5 Neutral protection N......................... 56 2.3.5.6 Ground-fault alarm ........................... 57 2.3.5.7 Ground-fault protection GF ......................58 2.3.5.8 Ground-fault protection GF Hi-Z ....................61 2.3.5.9 Directional short time dST ......................64 2.3.5.10 Reverse power protection RP ......................
Page 7 Table of contents 2.5.5.1 Introduction ............................. 113 2.5.5.2 Parameter set A ..........................113 2.5.5.3 Parameter set B (optional) ......................114 2.5.5.4 Setting range for parameter sets A and B................. 114 2.5.5.5 Enhanced protective functions EPF ................... 118 2.5.5.6 Parameter DAS+ maintenance mode ..................120 2.5.5.7 Zone-selective interlocking ZSI parameters ................
Page 8 Table of contents 2.9.2.1 Circuit breaker operating principle ....................176 2.9.2.2 Test functions ..........................177 2.9.2.3 SENTRON powerconfig configuration software ...............181 2.9.3 Display of errors and alarms ......................181 2.9.4 Trip log ..............................185 2.10 Zone-selective interlocking ZSI ....................187 2.10.1 Advantage ............................187 2.10.2 Structure and principle of operation of the ZSI system ............187 2.10.3 Monitoring and ZSI test function ....................189 2.10.4...
Page 9 Table of contents Accessories ............................227 Overview ............................227 Preparatory and concluding installation steps for the installation of internal accessories ............................229 Control and signaling accessories ....................234 4.3.1 Closing coil, shunt trip, undervoltage release ................234 4.3.1.1 Description ............................234 4.3.1.2 Technical specifications .......................
Page 10 Table of contents 4.4.3.3 Article number ..........................269 4.4.4 Spring charge signaling switch ....................270 4.4.4.1 Description ............................270 4.4.4.2 Technical specifications ........................271 4.4.4.3 Article number ..........................271 4.4.5 Trip alarm switch ..........................272 4.4.5.1 Description ............................272 4.4.5.2 Technical specifications ........................273 4.4.5.3 Part number .............................273 4.4.6 Position signaling switch module for guide frame ..............274 4.4.6.1...
Page 11 Table of contents 4.8.3.3 Activation ............................311 4.8.3.4 Part number............................. 311 4.8.4 Locking provision for charging handle for padlocks ............... 312 4.8.4.1 Description ............................312 4.8.4.2 Activation ............................312 4.8.4.3 Article number..........................312 4.8.5 Cover for the electronic trip unit ....................313 4.8.5.1 Description ............................
Page 12 Table of contents 4.9.6 Interlocking of three circuit breakers using a Bowden cable ..........336 4.9.7 Interlock for mechanical close/open ..................337 4.9.7.1 Description ............................337 4.9.7.2 Activation ............................338 4.9.7.3 Article number ..........................338 4.9.8 Interlock system to prevent unauthorized closing ..............339 4.9.8.1 Description ............................339 4.9.8.2 Activation ............................339 4.9.8.3...
Page 13 Table of contents 4.11.7.2 Technical specifications ....................... 361 4.11.7.3 Article number..........................362 4.11.8 Replacement battery for ETU600....................363 4.11.8.1 Description ............................363 4.11.8.2 Replacing the battery ........................363 4.11.8.3 Article number..........................363 4.12 Internal voltage tap on main current paths................364 4.12.1 Voltage tap conversion ........................
Page 14 Table of contents 4.16 Special packaging ...........................385 4.16.1 Description ............................385 4.16.2 Article number ..........................385 Inspection and maintenance ......................387 General ..............................387 Safety regulations ...........................389 Planning of inspection and maintenance...................390 5.3.1 Inspection interval ..........................390 5.3.2 Scope ..............................391 5.3.3 Logging..............................393 Performing inspection ........................394 5.4.1 General ..............................394 5.4.2...
Page 15 Table of contents 6.1.13 Motor disconnect switch ......................426 6.1.14 Auxiliary switch ..........................426 6.1.15 Ready-to-close signaling switch S20 ..................427 6.1.16 Spring charge signaling switch S21 .................... 427 6.1.17 Trip alarm switches S24 and S25 ....................427 6.1.18 PSS and PSS COM position signaling switch modules ............428 6.1.19 Local electric close S10 ........................
Page 16 Table of contents 6.3.4 Size 3 ..............................502 6.3.4.1 Basic data ............................502 6.3.4.2 Breaking capacity ...........................503 6.3.4.3 Ampacity, power loss ........................504 6.3.4.4 Switching times, endurance (operating cycles) ...............504 6.3.4.5 Minimum cross-sections of main conductors ................506 6.3.5 Connection options for auxiliary conductor plug-in system...........506 Ambient conditions .........................507 Installation altitudes........................508 Standards ............................508...
Page 17 Table of contents Appendix ............................551 Basic settings of the electronic trip unit on delivery .............. 551 Time-current characteristic of the ETU300 electronic trip unit ........... 557 Time-current characteristic of the ETU600 electronic trip unit ........... 558 ETU600 menu structure ........................ 559 Device numbers according to IEEE standard C37.2 ..............
Page 18 Table of contents 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 19: Introduction
The information contained in this manual is provided for the benefit of: • Planners • Power distribution equipment manufacturers/builders • Commissioning engineers • Users • Maintenance personnel Technical Support You can find further support on the Internet at: TechnicalSupport (https://www.siemens.com/support-request) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 20: Reference Documents
1997 Advanced training courses Find out about training courses on offer on the following link. Training for Industry (https://www.siemens.com/sitrain-lowvoltage) Here you can choose from: • Web-based training courses (online, informative, free) • Classroom training courses (course attendance, comprehensive, subject to fee) You also have the possibility of compiling your own training portfolio via Learning paths.
Page 21: Safety Instructions
Introduction 1.6 Safety instructions Safety instructions DANGER Hazardous voltage Will cause death, serious personal injury, or equipment damage. During operation, parts of the device or system are carrying hazardous electrical voltage. Improper handling of the device or system can result in death or serious injury, as well as significant material damage.
Page 22: Security Information
To keep up to date with all the latest product updates, subscribe to the Siemens Industrial Security RSS Feed at (https://www.siemens.com/industrialsecurity). 1.6.2 Open Source Software This product, solution or service ("Product") contains third-party software components.
Page 23: More Information On Open Source Software For 3Wa Circuit Breakers
You will find Technical Support under (https://www.siemens.com/support-request). Keyword: Open Source Request (please specify Product name and version, if applicable) SIEMENS may charge a handling fee of up to 5 EUR to fulfil the request. Warranty regarding further use of the Open Source Software SIEMENS' warranty obligations are set forth in your agreement with SIEMENS.
Page 24: Standards
Introduction 1.7 Standards Standards The 3WA1 air circuit breakers comply with the following standards: • IEC 60947-2 / EN 60947-2 (emission limits according to CISPR 11 (Group 1/Class B) and CISPR 32 (Class B)) • IEC 60692-2-5 / EN 60692-2-5 •...
Page 25: Description
2.1.1 Properties The 3WA circuit breaker is the new generation of air circuit breakers in the Siemens AG portfolio. It is based on the proven and robust design of its predecessor 3WL. The technical data of the 3WA circuit breaker mechanics and the portfolio have been extended as compared with 3WL, and the electronic components have been completely redeveloped.
Page 26 • Integrated and shared communication concept with the 3VA molded case circuit breakers and the 7KM PAC measuring devices. Option for direct integration into the Siemens communication environment via optional accessories: – Communications modules for PROFINET IO, Modbus TCP, Modbus RTU –...
Page 27: Portfolio Of The 3Wa1 Circuit Breaker
• Modular, easy-to-install accessories • Accessories are designed for the maximum service life of the circuit breaker. • Support by CAx files, EPLAN macros and Siemens tools simplifies planning and integration of the circuit breaker into the overall installation. 2.1.2...
Page 28: Advantages
Description 2.1 Overview - applications and portfolio 2.1.3 Advantages • High modularity In order to adapt the circuit breaker to new and changing requirements, components such as auxiliary releases, motorized operating mechanisms, external current sensors, auxiliary circuit signaling switches, automatic reset devices, and interlocks can be retrofit or replaced.
Page 29: Circuit Breakers And Non-Automatic Circuit Breakers
Description 2.2 Circuit breakers and non-automatic circuit breakers Circuit breakers and non-automatic circuit breakers 2.2.1 Distinction between circuit breakers and non-automatic circuit breakers The 3WA can be used as a circuit breaker with electronic trip unit, but also as a non- automatic circuit breaker according to IEC 60947-2.
Page 30: Design
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.2 Design 2.2.2.1 Circuit breakers Arc chute (16) Locking provision for racking handle (option) Carrying handle (17) Voltage tap module VTM (option) Labeling plate (18) Mechanical unlatching of the racking handle Motor disconnect switch (option) or (19) Query button local electric close (S10) (option)
Page 31: Guide Frame
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.2.2 Guide frame Arc chute cover (option) (10) Locking provision to prevent racking of the withdrawable circuit breaker with the control cabinet door open (option) Opening for crane hook (11) Locking provision to prevent opening of the control cabinet door when the circuit breaker is closed (option) Arcing openings...
Page 32 Description 2.2 Circuit breakers and non-automatic circuit breakers Rated-current coding Guide frames and withdrawable circuit breakers are equipped with a rated-current coding as standard. Rated-current coding ensures that only those circuit breakers whose guide frames are designed for the circuit breakers can be inserted into the guide frame. Guide frame, left inner side (right inner side accordingly) Coding pin on the racking rail in the guide frame Racking rail...
Page 33 Description 2.2 Circuit breakers and non-automatic circuit breakers For service purposes, the sliding covers can be opened and fixed manually with the aid of the shutter levers. Example: opening the lower sliding covers Light pressure on the shutter lever releases the fixation. The shutter levers return to the initial position and close the sliding covers.
Page 34 Description 2.2 Circuit breakers and non-automatic circuit breakers Locking provision for the shutter The locking provision secures the shutter levers with padlocks in different positions. This protects the openings defined by the shutter lever position against unauthorized alteration. • Locking in completely closed shutter position •...
Page 35 Description 2.2 Circuit breakers and non-automatic circuit breakers Locking provision for racking rails The locking provision prevents the insertion of a circuit breaker in the guide frame. For this purpose, the racking rails are locked with padlocks so that they cannot be pulled out again.
Page 36: Secondary Disconnect Terminals
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.2.3 Secondary disconnect terminals Description Internal electrical accessory components such as the closing coil receive their supply voltage via the secondary disconnect terminals. A maximum of four secondary disconnect terminal blocks are available for size 1 circuit breakers and up to five for sizes 2 and 3.
Page 37 Description 2.2 Circuit breakers and non-automatic circuit breakers Laying of cables NOTICE Damage to cables Cables in impermissible areas can be damaged. Route cables outside areas shown below. Arcing space If arc chute covers are provided, the auxiliary conductors must not be laid on these covers. Carrying handle Arcing openings Interlocks...
Page 38: Circuit Breaker Identification
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.3 Circuit breaker identification 2.2.3.1 Rating und accessory labels of circuit breaker The rating and accessory labels provide clear identification of the circuit breaker. They contain the article number, equipment details, and further information on the circuit breaker.
Page 39 Description 2.2 Circuit breakers and non-automatic circuit breakers Rated current and basic protective functions The rated current and the basic protective functions are indicated on the option plug. The option plug has the following marking. Article number of option plug (on the top, not visible when plugged in) Rated current Basic protective functions Country of origin (on the bottom side, not visible when plugged in)
Page 40: Guide Frame Rating Label
Description 2.2 Circuit breakers and non-automatic circuit breakers Accessory labels Article number without internal 2nd shunt trip (ST2) or accessories undervoltage release (UVR or UVR-t) Internal voltage tap Remote trip alarm reset coil (RR) Variant of the metering function Closing coil (CC or CC-COM) Country of origin (10) Spring charging motor (M)
Page 41: Operation
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4 Operation 2.2.4.1 Charging the stored-energy spring To be able to close the circuit breaker, the stored energy mechanism must be charged. Manually charging the stored energy mechanism Actuating force Number of strokes Stored-energy spring is charged 1.
Page 42: Closing And Opening
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4.2 Closing and opening Note The minimum time difference between ON and OFF command should be at least 100 ms. Conditions for ready-to-close status The conditions for the breaker's ready-to-close status can be found in Chapter Commissioning checklist (Page 43).
Page 43 Description 2.2 Circuit breakers and non-automatic circuit breakers Switching on and off with spring charging motor and motor disconnect switch Remote switching Remote switching of the circuit breaker is possible as an option: • Switching on takes place via the closing coil. •...
Page 44: Racking The Circuit Breaker In The Guide Frame
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4.3 Racking the circuit breaker in the guide frame The withdrawable circuit breaker can be moved to three positions by means of the racking handle. The current position is indicated by the position indicator on the circuit breaker, see Chapter Circuit breakers (Page 28).
Page 45: Commissioning Checklist
Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4.4 Commissioning checklist Checks and work to be carried out Before commencing work on the device, observe the safety instructions in Chapter Safety instructions (Page 19). 1. Open the circuit breaker and discharge the stored energy mechanism. 2.
Page 46 Description 2.2 Circuit breakers and non-automatic circuit breakers 11. Close the control cabinet door. 12. Move the circuit breaker to the connected position (for withdrawable circuit breaker). 13. Insert the racking handle (for withdrawable circuit breakers). 14. Charge the stored energy mechanism. Conditions for ready-to-close status (depending on equipment with accessories) The following conditions must be fulfilled for the ready-to-close status: Undervoltage release:...
Page 47: Protection System
Description 2.3 Protection system Protection system 2.3.1 General description of function The protection system of the 3WA circuit breaker consists of: • Current sensors for measurement The current sensors installed in the 3WA circuit breaker feature a Rogowski coil and an energy core.
Page 48: Option Plug
Description 2.3 Protection system 2.3.2 Option plug The option plug determines the current rating and the basic protective functions of the electronic trip unit of the 3WA circuit breaker. Article number (on top, not visible when plugged in) Rated current Basic protective functions Country of origin (on the bottom side, not visible when plugged in) The option plug can be replaced to adapt the circuit breaker to changing requirements.
Page 49 Description 2.3 Protection system Changing the current rating For the 3 sizes of the 3WA circuit breaker, the rated current I can be changed to the values given in the table below by means of the option plug. The selected value should correspond to the rated current of the power distribution system and must not exceed the maximum rated current of the circuit breaker I (see circuit breaker accessory...
Page 50: Guideline For Setting The Protection Parameters
SIMARIS design The Siemens SIMARIS design software tool is a simple and reliable tool for calculating and dimensioning networks. For more information on SIMARIS design, refer to the Internet (https://www.siemens.com/simaris).
Page 51 Description 2.3 Protection system SIMARIS curves The Siemens software tool SIMARIS curves can be used to display the time-current characteristic for one or more devices. For more information on SIMARIS curves, refer to the internet (https://www.siemens.com/simaris). The electronic trip units features a wide range of setting options. The setting range of...
Page 52: Description Of The Protective Functions
Description 2.3 Protection system 2.3.5 Description of the protective functions 2.3.5.1 General description Depending on the electronic trip unit and the options selected, the following protective functions are available: • Long time LT • Short time ST • Instantaneous short-circuit protection INST •...
Page 53 Description 2.3 Protection system Overload alarm AL1 and AL2 The alarm function of the overload protection is divided into two levels. • Alarm threshold AL1: Alarm threshold AL1 can be set in the range from 40% to 100% of the overload protection current setting I using the SENTRON powerconfig configuration software.
Page 54 Description 2.3 Protection system Phase failure detection If the current of the phase with the lowest load is 50% less than the current of the phase with the highest load, this is interpreted as a phase failure and the setting I automatically reduced to 80%.
Page 55 Description 2.3 Protection system Overload pre-alarm PAL The overload pre-alarm PAL (= pre-alarm) has separate current and time settings and the same characteristic as the overload protection. Instead of a trip, a message is output on the CubicleBUS for overload pre-alarm PAL. This message can control an output of a digital input/output module or be transmitted via the communications interface.
Page 56: Short Time St
Description 2.3 Protection system 2.3.5.3 Short time ST With short time ST, the power distribution system is protected against power system faults such as: • Phase-phase short-circuit • Phase-neutral conductor short-circuit • Phase-ground short-circuit The circuit breaker trips when the rms value of a phase current or the neutral current exceeds the setting of the short-time-delayed tripping current for the duration of the set delay.
Page 57: Instantaneous Short-Circuit Protection Inst
Description 2.3 Protection system 2.3.5.4 Instantaneous short-circuit protection INST With the instantaneous short-circuit protection, the power distribution system is protected against power system faults such as: • Phase-phase short-circuit • Phase-neutral conductor short-circuit • Phase-ground short-circuit The circuit breaker trips when the rms value of a phase current or the neutral current exceeds the setting of the instantaneous tripping current I Characteristic 3WA1 air circuit breaker...
Page 58: Neutral Protection N
Description 2.3 Protection system 2.3.5.5 Neutral protection N The neutral conductor can be protected against overload and short-circuit with the electronic trip unit. The neutral conductor protection consists of a separate overload protection and a common short-circuit protection for the three phases and the neutral conductor.
Page 59: Ground-Fault Alarm
Description 2.3 Protection system 2.3.5.6 Ground-fault alarm A ground fault can occur due to aging and the resulting deterioration of an insulating component in a power distribution system or due to a foreign body in the system. If the fault resistance is so high that the ground-fault current is below the settings of the ground-fault protection, the electronic trip unit will not trip.
Page 60: Ground-Fault Protection Gf
Description 2.3 Protection system 2.3.5.7 Ground-fault protection GF The ground-fault protection detects residual currents between the conductors and grounded parts of the power distribution system. The ground-fault protection function responds when the rms value of the ground-fault current exceeds the set tripping current for the set delay time t Ground-fault protection can be implemented either as a current-independent or a current-dependent function.
Page 61 Description 2.3 Protection system Implementation on the circuit breaker For direct measurement of the ground-fault current, an external current transformer (GF-CT) can be connected to terminals X8-11 and X8-12 of the secondary disconnect terminal of the circuit breaker. The current transformer must have the following properties: •...
Page 62 Description 2.3 Protection system GF mode A ground-fault current can be calculated mathematically or measured directly. The 3 GF modes available on the ETU600 electronic trip unit are described below. GF Residual The ground current is formed by the vectorial sum of the currents measured with the internal current sensors and the external N-conductor sensor (N-CT).
Page 63: Ground-Fault Protection Gf Hi-Z
Description 2.3 Protection system GF Dual With the setting GF Dual, the acquisition methods GF Residual (calculation of the vectorial sum of the currents) and GF Direct (direct measurement of the ground-fault current with an external current transformer) can be used simultaneously. This provides the user with 2 independent characteristics for ground-fault protection.
Page 64 Description 2.3 Protection system Note The maximum voltage at the measuring input of the electronic trip unit is 150 V rms. This must not be exceeded. A varistor or other suitable voltage limitation device must be connected in parallel to the load for this reason. Note Proper operation of the combination of current transformers and the load is not monitored by the ETU600 electronic trip unit.
Page 65 Description 2.3 Protection system Current transformer configurations Depending on the network topology of the power distribution system, several current transformers are required for the detection of ground-fault currents on the infeed side. In practice, current transformers of class TPS (former designation class X) according to IEC 60044-6 are used in a transformer combination.
Page 66: Directional Short Time Dst
Description 2.3 Protection system 2.3.5.9 Directional short time dST With the directional short-time-delayed short-circuit protection dST, the power distribution system is protected against power system faults such as: • Phase-phase short-circuit • Phase-neutral conductor short-circuit • Phase-ground short-circuit The circuit breaker trips when the rms value of a phase current exceeds the set directional short-time-delayed tripping current for the duration of the set directional delay.
Page 67 Description 2.3 Protection system Characteristic The characteristic is determined by the short-time-delayed tripping currents I sd FW (forward direction) and I (reverse direction) and the adjustable tripping times t sd REV sd FW and t sd REV Forward Reverse 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 68: Reverse Power Protection Rp
Description 2.3 Protection system 2.3.5.10 Reverse power protection RP The reverse power protection trips the circuit breaker when the power flow through the device reverses against the defined direction and exceeds the set value for the adjusted and definite-time delay. The setting is referred to the rated active power P as a percentage.
Page 69: Enhanced Protective Functions Epf
Description 2.3 Protection system 2.3.5.11 Enhanced protective functions EPF Enhanced protective functions can be added to the function scope of the ETU600 electronic trip unit. On the basis of the measured currents, voltages and frequency, overshooting or undershooting of the resulting metering values can cause tripping of the circuit breaker.
Page 70: Tolerances For Protection Functions
Description 2.3 Protection system 2.3.6 Tolerances for protection functions The following sections state the tolerances of the protective functions of the electronic trip units. These depend on the equipment of the 3WA circuit breaker. The tolerances apply to the ETU300 and ETU600 electronic trip units. The minimum or maximum tolerance of the tripping time may depend on several factors.
Page 71 Description 2.3 Protection system L: Overload protection LT, neutral conductor • Current response value Minimum: Maximum: • Tripping time, l t characteristic Minimum: Maximum: • Tripping time, l t characteristic Minimum: Maximum: S: Short-time delayed short-circuit protection ST, directed short-time-delayed short-circuit protection dST •...
Page 72 Description 2.3 Protection system • Tripping time, l t = ON (current-dependent) Minimum: Maximum: I: Instantaneous short-circuit protection INST • Current response value Minimum: Maximum: • Tripping time Minimum: Maximum: G: Ground-fault protection GF with LSIG GFx option plug • Current response value Minimum: Maximum: •...
Page 73 Description 2.3 Protection system • Tripping time, l t = ON (current-dependent) Minimum: Maximum: • Tripping time, l t = ON (current-dependent) Minimum: Maximum: G: Ground fault alarm GF alarm • Current response value Identical to G: Ground-fault protection GF •...
Page 74: Das+ Maintenance Mode
Description 2.3 Protection system The following constraints apply to the tolerances: • The parameterized rated frequency is the line frequency at the place of use. On delivery of the 3WA1 circuit breaker, the rated frequency is parameterized at 50 Hz. All settings of the electronic trip unit of the circuit breaker at the time of delivery are stated in Chapter Basic settings of parameter data sets (Page 551).
Page 75 Description 2.3 Protection system Maintenance mode DAS+ Fast tripping of circuit breakers and extinction of the arc are extremely important in order to protect staff working in the immediate vicinity of live parts. To this end, the maintenance mode DAS+ operates with its own set of protection parameters to reduce the trip threshold, thus ensuring that the circuit breaker trips at a lower threshold than would be necessary for normal operation and without delay times.
Page 76 Description 2.3 Protection system (2) The "DAS+ active" light should be installed in such a way that it is clearly visible to maintenance personnel. It is only active when all circuit breakers are in the maintenance mode DAS+. The maximum switching and continuous current of the digital output ETU-OUT is 0.1 A at 24 V DC.
Page 77 Description 2.3 Protection system Note For security reasons, the maintenance mode DAS+ can only be deactivated using the same method by which it was activated. Application examples The following figure shows the activation of the maintenance mode DAS+ by the digital ETU input with a normally-closed contact (NC) and a normally-open contact (NO).
Page 78: Activation Limits And Power Supply
Description 2.3 Protection system 2.3.8 Activation limits and power supply The electronic trip unit does not require auxiliary power. The electronic trip unit is powered by the circuit breaker's internal current sensors. Depending on the operational current, the electronic trip unit of the circuit breaker is activated from: Sizes 1 / 2 / 3 ACT LED (Active) Description...
Page 79: Etu300 Electronic Trip Unit
Description 2.4 ETU300 electronic trip unit ETU300 electronic trip unit 2.4.1 Overview of variants All circuit breakers with integrated ETU300 electronic trip units have a microprocessor. In contrast to the ETU600 electronic trip unit, it is not possible to extend the functions by adding additional function packages.
Page 80: Operator Controls And Displays
Description 2.4 ETU300 electronic trip unit 2.4.2 Operator controls and displays 2.4.2.1 Overview ETU TRIP: Trip indication and mechanical RESET of the reclosing lockout after a trip by the ETU300 electronic trip unit Lockable cover with safety lock, prevents a manual RESET of the reclosing lockout (option) CLEAR and TEST operating keys LED displays Rotary switches...
Page 81: Operating Keys
Description 2.4 ETU300 electronic trip unit 2.4.2.2 Operating keys The trip cause stored in the ETU300 can be deleted via the CLEAR operating key. Pressing the TEST operating key starts the internal self-test of the ETU. CLEAR and TEST operating keys Internal self-test The internal test function with tripping of the circuit breaker can be started by pressing the two CLEAR and TEST operating keys simultaneously and for a long time and then...
Page 82 Description 2.4 ETU300 electronic trip unit Meaning Description AL (alarm) Two-stage overload alarm Current is less than 90% of the set value Ir of the overload protection Current in a phase is between 90% and 100% of the set value Ir of the overload protection Current in a phase is greater than or equal to the setting Ir of the overload protection INFO...
Page 83: Rotary Coding Switches
Description 2.4 ETU300 electronic trip unit 2.4.2.4 Rotary coding switches The ETU300 electronic trip unit has 5 rotary coding switches for parameterizing the basic protection functions. 10 fixed values can be set mechanically for each rotary coding switch. 2.4.3 Interfaces 2.4.3.1 Interface for external voltage supply via the TD400 The ETU300 electronic trip unit can be supplied with external voltage for activation and...
Page 84: Digital Input And Output
Description 2.4 ETU300 electronic trip unit 2.4.3.2 Digital input and output The electronic trip unit ETU300 has one digital input and one digital output. The input responds to a 24 V signal with signal level HIGH and activates the maintenance mode DAS+. The floating output is a normally open contact (NO).
Page 85: External Current Sensor
Description 2.4 ETU300 electronic trip unit The following circuit diagram shows the integration of the digital input and output of the ETU into a control and signaling system using the example of 2 circuit breakers. Depending on the load, a coupling relay must be used at the output. The example also shows the polarity-independent control of the input.
Page 86: Rear Interfaces
Description 2.4 ETU300 electronic trip unit 2.4.3.4 Rear interfaces On the rear of the ETU300 electronic trip unit, there are terminals to ensure the circuit breaker functions. The terminals are only accessible after removing the electronic trip unit. The plug-in connections may only be disconnected for the exchange of the electronic trip unit.
Page 87: Setting Range
Description 2.4 ETU300 electronic trip unit 2.4.4.2 Setting range The protective functions have adjustable and non-adjustable parameters. (For basic settings on delivery from the factory, see Chapter Basic settings of the electronic trip unit on delivery (Page 551)): ETU300 LSI, ETU300 LSIG Protective function Setting range and Settings...
Page 88: Parameter Das+ Maintenance Mode
Description 2.4 ETU300 electronic trip unit 2.4.4.3 Parameter DAS+ maintenance mode Parameters DAS+ maintenance mode Current setting I 1.5 x I Activation via ETU input i DAS+ 2.4.5 DAS+ maintenance mode The DAS+ maintenance mode can be activated for the ETU300 electronic trip unit via the digital ETU input.
Page 89: Electronic Trip Unit Etu600
Description 2.5 Electronic trip unit ETU600 Electronic trip unit ETU600 2.5.1 Overview of variants All the circuit breakers with integrated ETU600 electronic trip units have two independently operating microprocessors - one for protective functionality and one for metering and accessory functionality. Function packages can be added to the ETU600 electronic trip unit to add protective functions and additional measurement capabilities.
Page 90: Operator Controls, Displays And Voltage Tap Module
Description 2.5 Electronic trip unit ETU600 2.5.2 Operator controls, displays and voltage tap module 2.5.2.1 Overview ETU TRIP: Trip indication and mechanical RESET of the reclosing lockout after a trip by the ETU600 electronic trip unit USB connection (USB-C) EXT TRIP: Trip indication and mechanical RESET of the reclosing lockout after an external switch-off Lockable cover with safety lock, prevents a RESET of the reclosing lockout (option) Display...
Page 91: Display And Operating Keys F1 To F4
Description 2.5 Electronic trip unit ETU600 2.5.2.2 Display and operating keys F1 to F4 The ETU600 electronic trip unit has an integrated color display. This can be used to display measured values and report events. You can set parameters in combination with the four operating keys.
Page 92 Description 2.5 Electronic trip unit ETU600 Meaning Description INFO Display of status information Normal operating state Warning is present Error is present DAS+ Maintenance mode DAS+ DAS+ not activated DAS+ activated L, S/I, G, EPF Last trip cause Normal operating state Tripping due to: Overload LT Short circuit ST, dST or INST...
Page 93: Rotary Switch
Description 2.5 Electronic trip unit ETU600 2.5.2.4 Rotary switch The electronic trip unit ETU600 has five rotary switches for parameterizing the basic protective functions. When the circuit breaker is delivered, the factory basic settings for the position "e.SET" are: • I : 0.4 x I •...
Page 94 Description 2.5 Electronic trip unit ETU600 The voltage tap module requires an internal voltage tap on the upper or lower main conducting paths in the circuit breaker. For rated voltages greater than 1000 V, external voltage transformers must be used to measure the system voltage.
Page 95: Display And Menu Structure
Description 2.5 Electronic trip unit ETU600 2.5.3 Display and menu structure 2.5.3.1 Operating philosophy For a simple and intuitive operation of the ETU600 electronic trip unit, the following two properties are important: • In each menu, the menu name and the corresponding menu number are displayed in the top line.
Page 96 Description 2.5 Electronic trip unit ETU600 Icons of the functions The assignment of the operating keys F1 to F4 is indicated by the following icons in the menu bar: Icon Function Navigation in the menu - up Navigation in the menu - down Confirmation Edit settings Escape / back...
Page 97: Menu Structure
Description 2.5 Electronic trip unit ETU600 Additional symbols If a menu has to be displayed across several pages, this can be recognized by the following symbols on the right-hand side: Icon Meaning Scroll menu - further menu items are located above the displayed menu items Scroll menu - there are further menu items below the displayed menu items...
Page 98: Start Screen
Description 2.5 Electronic trip unit ETU600 2.5.3.3 Start screen Status bar Maximum instantaneous value of phase current with respect to overload protection Metering values Menu bar Operating keys When the electronic trip unit is activated, the start screen appears. It is also displayed with dimmed backlighting after the time set in menu item 5.5.5 if none of operating keys F1 to F4 have been operated.
Page 99 Description 2.5 Electronic trip unit ETU600 Status bar In the status bar, the statuses of the circuit breaker are represented by symbols. Parameter set A of the protective functions active Maintenance mode DAS+ CubicleBUS stations available Existing Bluetooth connection Maintenance required Overload alarm AL2 Password protection not set Battery charge level good...
Page 100 Description 2.5 Electronic trip unit ETU600 Maximum instantaneous value of the phase current The maximum phase current is displayed as a numerical value as a percentage of the setting value of the overload protection. A colored bar chart shows the level of the current.
Page 101: Display After A Trip
Description 2.5 Electronic trip unit ETU600 2.5.3.4 Display after a trip Note Trip indication via the display is only possible with an activated ETU600 electronic trip unit. Alternatively, by pressing the "QUERY" button on the front of the ETU, you can display the last trip cause via LED.
Page 102 Description 2.5 Electronic trip unit ETU600 Trip cause LED (here overload) Tripping details 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 103: Display In Case Of A Warning
Description 2.5 Electronic trip unit ETU600 2.5.3.5 Display in case of a warning Warnings are indicated by a yellow INFO LED and shown on the color display of the ETU600 electronic trip unit. The warning is acknowledged by pressing the F4 operating key. Afterwards, the time stamp and details of the warning will be visible on the display.
Page 104: Display Of An Error Message
Description 2.5 Electronic trip unit ETU600 2.5.3.6 Display of an error message Detected errors are indicated by a red LED signaling indicator and shown on the display of the ETU600 electronic trip unit. The error is acknowledged by pressing the F4 operating key. Afterwards, the time stamp and details of the error are shown on the display.
Page 105: Interfaces
You can use the SENTRON powerconfig configuration software for parameterization. The current version of the SENTRON powerconfig configuration software can be found on the internet (https://support.industry.siemens.com/cs/ww/en/view/63452759). USB-C interface The ETU600 electronic trip unit has a USB-C interface on the front. The electronic trip unit can be activated and parameterized via this interface.
Page 106 The Bluetooth interface is automatically deactivated when the communication is interrupted and after a timeout. Bluetooth certifications can be found on the internet (https://support.industry.siemens.com/cs/ww/en/view/109784188). To connect with a compatible device via Bluetooth, activate the Bluetooth interface by pressing operating key F1 on the start screen.
Page 107 Description 2.5 Electronic trip unit ETU600 A long press of operating key F1 calls up Bluetooth menu 5.4.1. You can connect a new device here. Alternatively, you can proceed as follows: 1. Select the "Device configuration" menu item in the main menu of the ETU600. 2.
Page 108 Standard Bluetooth 5 Low Energy Transmit power 4 dBm Encryption ✓ Pairing 6-digit PIN Updatable Signed security updates You will find information about the FCC and ISED certificates on the internet (https://support.industry.siemens.com/cs/ww/en/ps/3WA1/cert). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 109: Digital Input And Output
Description 2.5 Electronic trip unit ETU600 2.5.4.2 Digital input and output The ETU600 electronic trip unit has one digital input and one digital output. Both can be configured in the device configuration menu using the operating keys on the display of the ETU600 electronic trip unit or with the help of the SENTRON powerconfig configuration software.
Page 110 Description 2.5 Electronic trip unit ETU600 Technical specifications and connection The connection is made at the secondary disconnect terminal system of the 3WA circuit breaker. Digital input ETU-IN Connection X8-5 and X8-6 Number of inputs SELV/PELV suitable ✓ Rated voltage 24 V DC ±20% Voltage value for reliable detection of a "1 signal": 15 V DC...
Page 111: Digital Output For Ground-Fault Alarm Ref
Description 2.5 Electronic trip unit ETU600 The following circuit diagram shows the integration of the digital input and output of the ETU into a control and signaling system using the example of two circuit breakers. Depending on the load, a coupling relay must be used at the output. The example also shows the polarity-independent control of the input.
Page 112: External Current Sensors
Description 2.5 Electronic trip unit ETU600 The floating output is a normally open contact. It is available for both internal and external power supply of the ETU600. Technical specifications and connection The connection is made at the secondary disconnect terminal system of the 3WA circuit breaker.
Page 113: Battery
Description 2.5 Electronic trip unit ETU600 2.5.4.5 Battery The internal clock of the ETU600 electronic trip unit is powered by a lithium battery. The charge status is shown in the status bar of the display. Battery full Battery empty, replacement necessary The service life of the battery depends on the ambient conditions;...
Page 114: Rear Interfaces
Description 2.5 Electronic trip unit ETU600 2.5.4.6 Rear interfaces On the rear of the ETU600 electronic trip unit, there are terminals to ensure the circuit breaker functions. The terminals are only accessible after removing the electronic trip unit. The plug-in connections may only be disconnected for the exchange of the electronic trip unit.
Page 115: Protection Parameters
Description 2.5 Electronic trip unit ETU600 2.5.5 Protection parameters 2.5.5.1 Introduction Note Do not change any parameters during operation, as this may result in unexpected tripping. 2.5.5.2 Parameter set A The basic protective functions of the ETU600 electronic trip unit can be set quickly and easily using the rotary coding switches on the front of the ETU600, see Chapter Rotary switch (Page 91).
Page 116: Parameter Set B (Optional)
Description 2.5 Electronic trip unit ETU600 2.5.5.3 Parameter set B (optional) The ETU600 electronic trip unit allows the storage of two different sets of parameters for the protective functions. This allows the changed protection requirements to be taken into account in the event of changed power supply conditions, e.g. in the event of emergency supply via an emergency power generator.
Page 117 Description 2.5 Electronic trip unit ETU600 ETU600 LSI, ETU600 LSIG, ETU600 LSIG Hi-Z Protective function Setting range for parameter sets A Settings with rotary coding switch and B only possible in parameter set A L: Overload protection LT Tripping Can be switched on/off Current setting I 0.4 ...
Page 118 Description 2.5 Electronic trip unit ETU600 ETU600 LSI, ETU600 LSIG, ETU600 LSIG Hi-Z Protective function Setting range for parameter sets A Settings with rotary coding switch and B only possible in parameter set A Reverse power protection RP (optional) Tripping Can be switched on/off Setting P 0.05 ...
Page 119 Description 2.5 Electronic trip unit ETU600 ETU600 LSIG Hi-Z with LSIG GFx (GF extended) option plug Protective function Setting range G: Ground-fault protection GF Ground-fault protection GF Hi-Z Can be switched on/off Method of ground-fault detection Residual Detection of the ground-fault current through calculation of the summation current in all phases of the N- conductor (UREF protection zone...
Page 120: Enhanced Protective Functions Epf
Description 2.5 Electronic trip unit ETU600 2.5.5.5 Enhanced protective functions EPF In addition to the two sets of protection parameters A and B, enhanced protective functions are optionally available for the ETU600 electronic trip unit. Parameters Setting range Condition Unbalance Current unbalance Can be switched on/off Setting...
Page 121 Description 2.5 Electronic trip unit ETU600 Parameters Setting range Condition Power Forward power Can be switched on/off Setting 1 … 12000 kW Tripping time 0 … 15 s Reverse power Can be switched on/off Setting 1 … 12000 kW Tripping time 0 …...
Page 122: Parameter Das+ Maintenance Mode
Description 2.5 Electronic trip unit ETU600 2.5.5.6 Parameter DAS+ maintenance mode The settings for the maintenance mode DAS+ are independent of protection parameter sets A and B. Parameters Setting range Condition Maintenance mode DAS+ Can be switched on/off Current setting I 1.5 …...
Page 123: Das+ Maintenance Mode
Description 2.5 Electronic trip unit ETU600 2.5.6 DAS+ maintenance mode The ETU600 electronic trip unit offers the possibility of activating the maintenance mode DAS+ using the operating keys on the display and parameterization of the desired signal state (LOW/HIGH) of the digital ETU input. Activation / deactivation using the operating keys on the display of the ETU600 Activation Activate the maintenance mode DAS+ of the 3WA circuit breaker with ETU600 electronic...
Page 124 Description 2.5 Electronic trip unit ETU600 Start of deactivation Confirm Maintenance mode DAS+ switched off Parameterization of the ETU input and output To activate the maintenance mode DAS+ via the circuit breaker's digital ETU input, 2 parameter assignments are necessary: 1.
Page 125: Technical Specifications
Description 2.5 Electronic trip unit ETU600 2.5.7 Technical specifications Design of the power supply DC power supply unit DC power supply unit IEC 61558 SELV/PELV Rated supply voltage U 24 V DC Operating range ± 20% Power consumption 2.9 W Maximum current consumption 0.12 A Starting current / maximum (for 5 ms)
Page 126: Grid Parameters
Description 2.5 Electronic trip unit ETU600 2.5.8.1 Grid parameters Rated current I The menu shows the parameter Rated current I . It corresponds to the current value of the option plug. Rated voltage U The rated voltage U parameter defines the phase-to-phase voltage for which the circuit breaker is to be used.
Page 127: Wiring Configuration
Description 2.5 Electronic trip unit ETU600 2.5.8.2 Wiring configuration Phase-to-phase assignment Under this menu item, the phase-to-phase assignment can be set. Energy flow direction In the Energy flow direction submenu, the direction for the energy flow is defined. This setting is used for the following calculations: •...
Page 128: Local Interfaces
Description 2.5 Electronic trip unit ETU600 Voltage FFT In the "Voltage FFT" submenu, the voltage used for the fast Fourier transform (FFT) (U or U ) is specified. Ground-fault current If the ground-fault protection function is present, the ground-fault current menu item is also available.
Page 129: Module Monitoring
Description 2.5 Electronic trip unit ETU600 2.5.8.8 Module monitoring When module monitoring is switched on, the presence of the VTM voltage tap module and the ZSI200 zone selectivity module is continuously monitored and the absence of the module is signaled. 2.5.8.9 Remote access protection In this menu the possibility of remote switching and remote parameterization is shown...
Page 130: Function Packages
Description 2.6 Function packages Function packages 2.6.1 General The properties of the 3WA circuit breaker can be extended by digital function packages. They allow an individual and application-specific design of the protection and metering functionality. Note The function packages can only be used with the ETU600 electronic trip unit. Installation is not possible when using the ETU300 electronic trip unit.
Page 131: Enhanced Protective Functions
Description 2.6 Function packages 2.6.4 Enhanced protective functions The enhanced protective functions complement the functionality of the ETU600 electronic trip unit and can be added in sub-packages or as a complete function package: • Phase unbalance current, phase unbalance voltage •...
Page 132: Metering Function (Power Metering Function)
Description 2.7 Metering function (power metering function) Metering function (power metering function) Energy transparency runs through the entire life cycle of an electrical power distribution system. The foundation stone for this is laid during the planning stage. When installing the system, VDE 0100-801 (Low-voltage electrical installations, Part 8-1: Energy efficiency) must be applied and the values of the German Energy Saving Ordinance (EnEV) must be observed.
Page 133 Description 2.7 Metering function (power metering function) Power metering and monitoring device Depending on the location of use in the power distribution system, different metering values are required for the assessment and evaluation of efficiency. Infeed Transformer Generator Distribution Loads, consumers The energy values must be provided by power metering and monitoring device (PMD) or an "equipment embedding a power metering and monitoring function (EPMF)".
Page 134 Description 2.7 Metering function (power metering function) With its integrated current sensors and the ETU600 electronic trip unit, the 3WA circuit breaker constitutes a PMF-DD power metering and monitoring device according to IEC 61557-12 for the measured variables current, voltage, active energy and active power.
Page 135 Description 2.7 Metering function (power metering function) Application package Current ready4- PMF-I PMF-II PMF-III meter- Energy Basic Advanced Efficiency Power Power Monitor- Monitoring cos φ ✓ ✓ ✓ Frequency f ✓ ✓ ✓ Current unbalance ✓ ✓ ✓ Voltage unbalance ✓...
Page 136 Description 2.7 Metering function (power metering function) The specified accuracies apply given the following reference conditions: • Operating temperature 23 °C ±2 °C • Relative humidity 40% to 60% RH • Auxiliary power supply of 24 V DC ±1% • Three-phase current system, 3 phases available •...
Page 137 Description 2.7 Metering function (power metering function) The selection can be made using the operating keys on the display of the ETU600 electronic trip unit, in menu item 5.3.3 or with the help of the SENTRON powerconfig configuration software. The definition of the power factor determines the signs for active and reactive power. The display of the cos φ...
Page 138 Description 2.7 Metering function (power metering function) Definitions for the power factor: Quadrant Consumer perspective Producer perspective (1) Active power export (1) Active power export (2) Active power import (2) Active power import (3) Reactive power export (3) Reactive power export (4) Reactive power import (4) Reactive power import Meaning...
Page 139 Description 2.7 Metering function (power metering function) Retrofitting the metering function It is also possible to retrofit a metering function for a circuit breaker. The metering values provided as a result have the accuracy specified by the manufacturer. This restriction is necessary, as standard IEC 61557-12 requires routine testing for the metering function of a circuit breaker.
Page 140: Communication And System Connection
Description 2.8 Communication and system connection Communication and system connection 2.8.1 CubicleBUS² 2.8.1.1 The bus system The CubicleBUS² is a closed bus system and allows communication between the circuit breaker with ETU600 electronic trip unit and internal and external modules located in the circuit breaker panel.
Page 141 Description 2.8 Communication and system connection The first CubicleBUS module is connected to secondary disconnect terminals X8-1 to X8-4 of the circuit breaker. CubicleBUS modules on the circuit breaker External CubicleBUS modules DIN rail 120 Ω terminating resistor of the CubicleBUS CubicleBUS 3WA air circuit breaker Guide frame of the 3WA air circuit breaker (optional)
Page 142: Technical Specifications
Description 2.8 Communication and system connection Note Compatibility with legacy product The CubicleBUS² applied in the 3WA circuit breaker is an enhanced development of the CubicleBUS system applied in the 3WL circuit breaker. They are not compatible with each other. See also Position signaling switch module for guide frame (Page 274) 2.8.1.2...
Page 143: Firmware Update
ETU600 (menu number 7). Latest firmware version Always use the latest firmware version. You can find this on the internet (https://support.industry.siemens.com/cs/ww/en/view/109782123). SENTRON powerconfig configuration software The firmware update is performed via the SENTRON powerconfig configuration software. For more information and to download the latest version of the SENTRON powerconfig configuration software, visit the internet (https://sie.ag/2SUlAc2).
Page 144 Signed firmware The firmware of the 3WA air circuit breaker is signed by Siemens with a private key. During the firmware update, the signature in the device is checked with the public key.
Page 145 Description 2.8 Communication and system connection Fail-safe firmware update The update process of the 3WA air circuit breaker is executed in a fail-safe manner. A failed or aborted firmware update cannot render any device unusable. The firmware update can be executed again at any time. Note Firmware versions of individual modules If you wish to update the BSS200 Breaker Status Sensor and the digital input/output...
Page 146: Com190 And Com150 Communication Modules
Description 2.8 Communication and system connection 2.8.3 COM190 and COM150 communication modules In the following chapters you will find contents about the communication modules of the 3WA air circuit breakers and their connections. Information on data points and registers as well as further information on the subject of communication for 3WA air circuit breakers can be found in the following documents: •...
Page 147: Com190 Communication Module
Description 2.8 Communication and system connection 2.8.3.2 COM190 communication module Supported protocols COM190 The COM190 communications module supports the following communication protocols: • PROFINET IO • Modbus TCP It is possible to use only one protocol or both protocols simultaneously and independently of each other.
Page 148 Description 2.8 Communication and system connection The following graphic shows the interconnection of the COM190 communications module (module role selector switch is set "A"), a PSS COM, and an external write protection switch. Connections X63/X64 Connections X63 and X64 are the Switched Ethernet connections of the COM190 communications module.
Page 149 Description 2.8 Communication and system connection You will find more information about the Ethernet connections in the following Chapter Ethernet connections X63 / X64 (Page 147). Ethernet connections X63 / X64 The COM190 communications module has two independent Ethernet connections X63/X64. The two connections are connected to an internal switch and can simultaneously use the PROFINET IO and the Modbus TCP protocol.
Page 150 Description 2.8 Communication and system connection LEDs The COM190 communications module has three LEDs for displaying the status of the COM module and the communications interfaces: PN (PROFINET IO) CUB (CubicleBUS TCP (Modbus TCP) Description of the status displays (normal operating states) Indication Description Green...
Page 151 Description 2.8 Communication and system connection Description of the status displays (special operating states) Indication Description PN and CUB are Visual identification of the COM190 communications module flashing green is active. alternately. Visual identification can be activated in the SENTRON TCP is off.
Page 152: Com150 Communication Module
Description 2.8 Communication and system connection 2.8.3.3 COM150 communication module Overview COM150 Supported protocols COM150 The COM150 communications module supports the Modbus RTU protocol. Interfaces, operator controls and status displays The COM150 communications module for the 3WA air circuit breaker has several interfaces, operator controls and status displays, which are described below.
Page 153 Description 2.8 Communication and system connection The following graphic shows the interconnection of the COM150 communications module, a PSS COM, and an external write protection switch. Connection X65 Modbus RTU The COM150 communication module has a 3-pole connection X65 for the Modbus RTU connection according to the EIA/TIA-485 standard.
Page 154 Description 2.8 Communication and system connection Terminating resistor R The COM150 communications module has an internal terminating resistor R. This resistor must be activated on the last module of the Modbus RTU line (slide switch in position "ON"). LEDs The COM150 communications module has three LEDs for displaying the status of the COM module and the communications interfaces: ACT (active) CUB (CubicleBUS...
Page 155 Description 2.8 Communication and system connection Description of the status displays (normal operating states) Indication Description Green Normal operation Module not active Flashing green LED display is in combination mode (see section Special operating states) Green CubicleBUS nodes active CubicleBUS communication disturbed Flashing red Address conflict on the CubicleBUS...
Page 156: Common Functions And Connections
Description 2.8 Communication and system connection Connections X61/X62, functions and operator controls The description of the common connections and functions of the communication modules can be found in Chapter Common functions and connections (Page 154). Default setting of the COM150 communications module COM150 communications module Default values Baud rate...
Page 157 Description 2.8 Communication and system connection Position signaling switch module (PSS COM) The position signaling switch module (PSS COM) can be installed in the guide frame of a communication-capable 3WA withdrawable circuit breaker as an option. It signals the following additional positions of the circuit breaker in the guide frame (see Chapter Racking the circuit breaker in the guide frame (Page 42)): •...
Page 158 Description 2.8 Communication and system connection Operator controls The COM190 and COM150 communications modules have the following operator controls: • Function button S1 • Slide switch for parameter write protection • Slide switch for module role selector switch Function button S1 The function button S1 is used to reset the communications module to the factory settings.
Page 159 Description 2.8 Communication and system connection Slide switch for module role selector switch The slide switch module role selector switch (A or B) is used to assign a role A or B to the respective communications module. The switch also serves to uniquely identify the communications module in the system.
Page 160 Description 2.8 Communication and system connection Temperature sensor A temperature sensor is integrated in the COM190 and COM150 communication modules. Since the sensor is installed outside the circuit breaker, it only provides approximate temperature values inside the control cabinet. The temperature is always measured in module A.
Page 161: Commissioning
Description 2.8 Communication and system connection 2.8.3.5 Commissioning The following software options are available for initial commissioning of the COM190 or COM150 communications module: • SENTRON powerconfig configuration software / SENTRON powerconfig app for commissioning via – Ethernet interface of the COM190 communications module –...
Page 162 Description 2.8 Communication and system connection Commissioning via the Ethernet interface of the COM190 To commission the COM190 communications module via the Ethernet interface, proceed as follows: 1. Connect your notebook/PC to one of the Ethernet ports of the COM190 communications module.
Page 163 Description 2.8 Communication and system connection Commissioning via the USB-C interface of the circuit breaker To commission a communication module via the USB-C interface of the 3WA circuit breaker, proceed as follows: 1. Connect your notebook/PC to the USB-C interface of the 3WA circuit breaker. 2.
Page 164 Procedure To commission the COM190 communications module via PROFINET, download the GSDML files for the COM190 from the internet (https://support.industry.siemens.com/cs/WW/en/view/109793939). The GSDML files can be imported in STEP 7 V5.5 or higher, TIA Portal, and other PROFINET configuration tools. Note PROFINET settings made with the SENTRON powerconfig configuration software only become effective after a restart of the COM190 communications module.
Page 165: Access Protection Functions
Description 2.8 Communication and system connection 2.8.3.6 Access protection functions Overview To restrict access to the communications module or prevent unauthorized access, the module offers several access protection functions. These access protection functions are implemented both as hardware and software functions and in network security: •...
Page 166 Description 2.8 Communication and system connection Parameter write protection The parameter write protection is implemented via a slide switch on the communications module. It prevents unwanted changes to circuit breaker parameters via the fieldbus interfaces of the communications module. The parameter write protection is an effective way to protect the circuit breaker against unwanted changes, e.g.
Page 167 Description 2.8 Communication and system connection • Updating the firmware of the communications module via the SENTRON powerconfig configuration software • Resetting the settings to factory settings with PROFINET Exceptions Exceptions are the following modifications and actions that are also permitted in write- protected mode: •...
Page 168 Signed firmware Firmware updates of the COM190 communication module are digitally signed by Siemens with a private key and thus protected against manipulation. The communication module detects faulty, manipulated firmware packages or firmware packages intended for another device and rejects the installation.
Page 169: Resetting To Factory Settings
Description 2.8 Communication and system connection Connection list Port type Connection Service Description number (decimal) 502 (default, but Modbus TCP The Modbus TCP port should be blocked in the freely gateway to another network if no Modbus TCP configurable) connection to the 3WA from this network is required. SNTP Required for time synchronization via SNTP (Simple Network Time Protocol)
Page 170 Description 2.8 Communication and system connection Procedure The reset to factory settings is initiated by pressing and holding the S1 operating key for 5 seconds. When the request "Reset to factory settings" is detected, the device signals "restricted operation" (LEDs flash green). This state lasts for about 5 seconds. At this point, function button S1 can be released.
Page 171: System Time
• Optional SENTRON powerconfig configuration software for commissioning Note According to the Siemens Cybersecurity Disclaimer, the COM190 should not be operated in public networks. The SNTP function of the COM190 is therefore designed for a local NTP time server in closed networks.
Page 172 Description 2.8 Communication and system connection Setting the system time via the COM190 communication module The system time can be set as a data point via the Modbus TCP and PROFINET protocols. Automatic daylight savings switchover The 3WA circuit breaker operates with a system time generated in the ETU600 electronic trip unit.
Page 173: Status Acquisition With Breaker Status Sensor Bss200
Description 2.8 Communication and system connection Settings The system time and the automatic daylight savings switchover have the following settings for the 3WA circuit breaker: Date in year-month-day format Time in hour:minute format Automatic daylight savings switchover Time zone difference to UTC in 15-minute increments For more information, see Chapter Reference documents (Page 18).
Page 174 Description 2.8 Communication and system connection Technical specifications Design of the power supply DC power supply unit DC power supply unit IEC 61558 SELV/PELV Rated supply voltage Us 24 V DC Operating range ± 20% Power consumption 1.3 W Maximum current consumption 0.05 A Starting current / maximum (for 5 ms) 0.35 A...
Page 175: Self-Monitoring And Diagnostics
Description 2.9 Self-monitoring and diagnostics Self-monitoring and diagnostics 2.9.1 Internal self-test 2.9.1.1 General For commissioning and a functional check, the electronic trip unit has various integrated test functions depending on the scope of functions. These end with or without tripping the circuit breaker.
Page 176: Internal Self-Test Etu600
Description 2.9 Self-monitoring and diagnostics An ongoing test is indicated by a running light of the trip cause LEDs from right to left over the set tripping time t The execution of the internal test function can be canceled by pressing the CLEAR button for longer than 700 ms.
Page 177 Description 2.9 Self-monitoring and diagnostics Note The test with tripping can be aborted by pressing the F1 (ESC) operating key. Test result After the start, the checked points and the result of the check are displayed. In addition, the trip cause LED L lights up for 30 seconds. In the case of a test with circuit breaker tripping, reference is also made to the time taken to trip.
Page 178: Software-Assisted Testing
Description 2.9 Self-monitoring and diagnostics 2.9.2 Software-assisted testing In order to check and log the parameterized protection settings and the functionality of the circuit breaker, the 3WA air circuit breaker offers the possibility of software-assisted testing. These tests can be easily performed during commissioning, inspection and maintenance (see Chapter Inspection and maintenance (Page 387)) or service.
Page 179: Test Functions
Description 2.9 Self-monitoring and diagnostics 2.9.2.2 Test functions To check and document the functionality of a circuit breaker, the continuous self- monitoring of the ETU and an externally generated test signal must be considered together. Only in this combination is it possible to test the entire function chain of a circuit breaker and the correct evaluation of the result.
Page 180 Description 2.9 Self-monitoring and diagnostics Software-assisted testing With software-assisted testing, you can test the parts of the functional chain of the 3WA air circuit breaker that cannot be checked with self-monitoring alone. Current sensors Protection electronics Analog measuring signal Tripping solenoid F5 Analog/digital converter Breaker mechanism Digital measuring signal...
Page 181 Description 2.9 Self-monitoring and diagnostics Tripping time The time required from exceeding the limit values to actuation of the tripping solenoid is determined, displayed and evaluated as the tripping time. If the determined tripping time is within the specified tolerances, the test is passed. Mechanical system During the test, the F5 tripping solenoid, the breaker latching mechanism, and the main contacts are also checked for proper functioning.
Page 182 To run a software-assisted test, the following requirements must be met: • 3WA air circuit breaker with ETU600 electronic trip unit and a firmware version from V2.2, see Firmware updates (https://support.industry.siemens.com/cs/ww/en/view/109782123) • SENTRON powerconfig configuration software from V3.22, see current version of powerconfig (https://sie.ag/2SUlAc2) •...
Page 183: Sentron Powerconfig Configuration Software
The standard test package is activated via a license and limited to the duration of one year after activation. You can purchase the function packages and the associated licenses at the Siemens Industry Mall (https://mall.industry.siemens.com/mall/ww/en/Catalog/Product/?mlfb=7KN2720- 0CE00-1YC1).
Page 184 In this case, the circuit breaker is tripped immediately. Further operation of the circuit breaker is then no longer possible. A service assignment by a Siemens-certified technician is necessary. Error...
Page 185 The function of the circuit breaker is restricted because parts are no longer ready for operation. For example, these may be the metering function or the display of the electronic trip unit ETU. A service assignment by a Siemens- certified technician is necessary.
Page 186 Description 2.9 Self-monitoring and diagnostics Warning A warning is a type of error that does not influence the protective function of the circuit breaker. Operation of the circuit breaker is still possible with slight restrictions. A service assignment may be necessary or the error may have to be rectified as part of the next maintenance.
Page 187: Trip Log
Description 2.9 Self-monitoring and diagnostics 2.9.4 Trip log Up to 20 trips can be stored in the trip log of the ETU600 electronic trip unit. The trip log takes the form of a circular buffer. Each trip by the ETU600 electronic trip unit is stored with the following information: •...
Page 188 Description 2.9 Self-monitoring and diagnostics Stored measured values Depending on the trip cause, the following measured values are stored and shown on the display: Basic protective functions Trip cause Measured value L: Long time LT L: Long time LT, neutral conductor S: Short time ST S: Directional short time dST forward dST forward...
Page 189: Zone-Selective Interlocking Zsi
Description 2.10 Zone-selective interlocking ZSI 2.10 Zone-selective interlocking ZSI 2.10.1 Advantage Note Zone selective interlocking ZSI can be used for the 3WA air circuit breakers from the ID No. OE/230101500000 in connection with the ZSI200 module. ZSI will presumably be available for the 3WA air circuit breaker as of 01/2023 (circuit breaker) or 03/2023 (ZSI module).
Page 190 Description 2.10 Zone-selective interlocking ZSI In the example below, the B+ and B- connections of the ZSI200 modules of the circuit breakers -Q2 to -Q4 are connected to the A+ and A- connections of the ZSI200 module of the upstream circuit breaker -Q1. All connections of a grading level are connected in parallel.
Page 191: Monitoring And Zsi Test Function
Description 2.10 Zone-selective interlocking ZSI 2.10.3 Monitoring and ZSI test function Monitoring function When the external voltage supply (24 V DC) is activated, any existing module on the CubicleBUS² is automatically registered. The ETU600 electronic trip unit then permanently monitors the presence of the registered modules and reports an error if a registered module is no longer detected.
Page 192: Compatibility
Description 2.10 Zone-selective interlocking ZSI The specified parameters can be set in the following menus of the display. The call of parameter "ST: ZSI IN" is shown as an example. 2.10.5 Compatibility The ZSI function of the 3WA circuit breaker is a further development of existing systems for SENTRON circuit breakers.
Page 193: Application Examples
Description 2.10 Zone-selective interlocking ZSI 2.10.6 Application examples The functionality of the ZSI system will be explained using four application examples. • Radial system with three grading levels • Multiple infeed with coupler circuit breakers • Branch circuit with fuse •...
Page 194 Description 2.10 Zone-selective interlocking ZSI Fault scenario A: • The -Q4, -Q3 and -Q1 circuit breakers detect the short-circuit. Via the ZSI system, circuit breaker -Q3 is informed of the pick-up of -Q4 and circuit breaker -Q1 is informed of the excitation of -Q3. This prevents tripping of the circuit breakers -Q3 and -Q1 with delay t •...
Page 195 Description 2.10 Zone-selective interlocking ZSI Result The table shows that in fault case C, the duration of the load on the power distribution system is reduced by 0.36 s. This can also be seen in the grading diagram. The diagram on the left shows the grading times of the power distribution system without the ZSI system.
Page 196: Example Of Multiple Infeed With Coupler Circuit Breaker
Description 2.10 Zone-selective interlocking ZSI 2.10.6.2 Example of multiple infeed with coupler circuit breaker The following figure shows a multiple infeed with bus-coupler: In the example, the B+ and B- connections of the ZSI200 modules of the -Q4 and -Q5 circuit breakers are connected to the A+ and A- connections of the ZSI200 module of the -Q3 bus-coupler.
Page 197: Example Of Branch Circuit With Fuse
Description 2.10 Zone-selective interlocking ZSI 8WH1 and 8WH2 diode terminals: 8WH1 8WH2 Diode terminal 8WH1 8WH2 Flow direction designation screw terminal spring-loaded terminal From left to right 8WH1000-6LG00 8WH2003-5DF00 Right to left 8WH1000-6KG00 8WH2003-5CF00 2.10.6.3 Example of branch circuit with fuse When fuses and circuit breakers are used simultaneously, the fuse characteristic determines the required delay of the circuit breaker for current or time grading.
Page 198 Description 2.10 Zone-selective interlocking ZSI The following figure shows a ZSI system with one fuse and four circuit breakers. Due to the adjustable delay t , the break time can be reduced by a ZSI system even when fuses and circuit breakers are used simultaneously. The delay t of the short-time-delayed short-circuit protection is matched to the fuse - F1 with 0.2 s in the following example.
Page 199 Description 2.10 Zone-selective interlocking ZSI Fault scenario B • The -Q3 and -Q1 circuit breakers detect the short-circuit. Via the ZSI system, the -Q1 circuit breaker is informed of the pick-up of -Q3. This prevents tripping of -Q1 after the delay t •...
Page 200: Example Of Integrating The Medium-Voltage Protection Relay
Description 2.10 Zone-selective interlocking ZSI 2.10.6.4 Example of integrating the medium-voltage protection relay The medium-voltage protection relay, e.g. from the SIPROTEC device family, can be controlled via a binary input on the protection relay. The specification of the binary input of the protection relay and the maximum control voltage 24 V DC for the ZSI200 module must be observed.
Page 201: Applications
Applications Use in systems with isolated transformer neutral point (IT systems) 3.1.1 General IT systems are predominantly used in consumer installations with stringent requirements with respect to power supply availability. Circuits are generally only interrupted if two insulation faults occur simultaneously in different phases. The IT network type is the preferred choice in the following areas, for example: •...
Page 202: Selection Criteria
Applications 3.1 Use in systems with isolated transformer neutral point (IT systems) 3.1.2 Selection criteria The devices are always dimensioned and selected irrespective of the type of system in which they will be used. The circuit breaker is selected based on the maximum number of short-circuit currents that occur in a given system type.
Page 203: Fault Situation
Applications 3.1 Use in systems with isolated transformer neutral point (IT systems) 3.1.3 Fault situation A double ground fault on the infeed and load side of the circuit breaker is the most critical scenario for a circuit breaker in an IT system. If this fault occurs, the full phase- to-phase voltage is applied to one pole of the circuit breaker.
Page 204: Using The 3Wa Circuit Breaker For Motor Protection
Applications 3.2 Using the 3WA circuit breaker for motor protection Using the 3WA circuit breaker for motor protection 3WA circuit breakers are suitable for use as a motor protection circuit breakers for IE3 and IE4 motors. The technical specifications of the 3WA circuit breakers and the setting options of the ETU600 electronic trip unit enable use in accordance with IEC EN 60947- 4-1.
Page 205 Applications 3.2 Using the 3WA circuit breaker for motor protection The ETU600 electronic trip unit can be used for motor protection. The protection parameters are listed in Chapter Setting range for parameter sets A and B (Page 114). For overload protection, the thermal memory must be activated and the cooling constant for the simulation of the warming and cooling process must be set to 10 x I .
Page 206 Applications 3.2 Using the 3WA circuit breaker for motor protection Non-tripping of the circuit breaker due to the inrush peak current of electric motors and simultaneous protection in case of rotor blocking can be achieved by setting tripping time t of the delayed short-circuit protection ST to 0.02 s.
Page 207 Applications 3.2 Using the 3WA circuit breaker for motor protection Trip classes T Trip class T specifies the tripping time T with a symmetrical 3-pole load, starting from the cold state, with 7.2 times the set current I according to IEC EN 60947 4-1. Trip class T Tripping time T 0.5 s <...
Page 208: Transfer Control
Applications 3.3 Transfer control Transfer control 3.3.1 General 3KC ATC transfer control devices and 3WA circuit breakers with a spring charging motor can be used to implement transfer control between a main source and an alternative power source. The stability of the power supply is analyzed by means of voltage taps upstream of the switching devices in this case.
Page 209: Transfer Control With Two 3Wa Circuit Breakers
Applications 3.3 Transfer control 3.3.2 Transfer control with two 3WA circuit breakers A transfer between two 3WA circuit breakers can be achieved in conjunction with all transfer control devices in the 3KC ATC series: 3.3.3 Transfer control with three 3WA circuit breakers In conjunction with the 3KC ATC6500 transfer control device, load shedding can be implemented as an additional feature.
Page 210: Applications With Closing Coil And Shunt Trip
Applications 3.4 Applications with closing coil and shunt trip Applications with closing coil and shunt trip 3.4.1 Overview Closing coil CC and at least one shunt trip ST or ST2 are required for electrical switching. Both types are optional accessories of the circuit breaker, see Chapter Closing coil, shunt trip, undervoltage release (Page 234).
Page 211 Applications 3.4 Applications with closing coil and shunt trip If the circuit breaker is ordered with an optional closing coil (100% OP) or first shunt trip for uninterrupted duty (100% OP), the "ready4COM" feature is taken into account during production of the circuit breaker. When this feature is available, closing coil CC-COM is used in the circuit breaker instead of the CC closing coil and shunt trip ST-COM is used instead of the first ST shunt trip.
Page 212: Connecting The Closing Coil
Applications 3.4 Applications with closing coil and shunt trip 3.4.2 Connecting the closing coil Operation of the closing coil of a circuit breaker is illustrated with and without the "ready4COM" feature in the diagrams below. When the S1 button is operated, the circuit breaker closes. If the circuit breaker has the "ready4COM"...
Page 213: Connection Of The First Shunt Trip
Applications 3.4 Applications with closing coil and shunt trip 3.4.3 Connection of the first shunt trip Operation of the first shunt trip of a circuit breaker is illustrated with and without the "ready4COM" feature in the diagrams below. When the S2 button is operated, the circuit breaker opens. If the circuit breaker has the "ready4COM"...
Page 214: Connection Of The Second Shunt Trip
Applications 3.4 Applications with closing coil and shunt trip 3.4.4 Connection of the second shunt trip In addition to the first shunt trip ST or ST-COM, the circuit breaker can also be equipped with a second shunt trip ST2 as an option. This one is only conventional and cannot be operated via communication.
Page 215 Applications 3.4 Applications with closing coil and shunt trip Remote switching protection, controlled via the communications module The simplest method of preventing switching via communication is to activate remote switching protection on the communications module. The communications module has an RSP connection which can be used to enable or prevent remote switching.
Page 216 Applications 3.4 Applications with closing coil and shunt trip Circuit diagram, example 1 The following switching operations are possible depending on the position of the -S4 switch. • Position -S4 to the left: Remote + Local Closing and opening are possible via communication and using the two buttons. •...
Page 217: Electrical Closing Interlock
Applications 3.4 Applications with closing coil and shunt trip 3.4.6 Electrical closing interlock Mechanical or electrical closing can be prevented with the help of a shunt trip. For this purpose, the control supply voltage must be permanently applied to the first or the second shunt trip.
Page 218: Dsp800 Display
Applications 3.5 DSP800 display DSP800 display The DSP800 display is used for the visualization of device information and measured data directly at the cubicle door. It can be connected to the Ethernet interface (Modbus TCP protocol) of the COM190 communications module. The DSP800 display is deployed for any application which requires visual indication (i.e.
Page 219 Applications 3.5 DSP800 display Compatibility With firmware version 4.00 and higher, the DSP800 display shows the data from up to eight connected circuit breakers/metering devices. The following devices are compatible with the DSP800: • 3WA air circuit breaker via COM190 •...
Page 220 Applications 3.5 DSP800 display Technical specifications The backlit liquid crystal display has high resolution and an inverse display for good readability. Feature Value Designation DSP800 Article number (as spare part) 3VA9987-0TD10 Protocol Modbus TCP Transmission medium Ethernet, IEEE 802.3 Transmission rate 100 Mbps Connection technology Via RJ45 socket and Ethernet patch...
Page 221: Powermanager
Applications 3.6 powermanager powermanager 3.6.1 Energy management in accordance with ISO 50001 Efficiency in power distribution The 3WA circuit breaker ensures safety and cost effectiveness in power distribution. Efficiency is increased even more when combined with software products for simple and fast configuration and reliable monitoring.
Page 222: Features
Applications 3.6 powermanager 3.6.2 Features The powermanager power monitoring software is characterized by the following features and the benefits resulting from them: • Pre-configured project settings – Fast commissioning – Easy introduction • Display of load profile and measured variables as a characteristic curve –...
Page 223: Functions
ISO 50001. The TÜV certificate can be obtained on request. For more information, refer to the Internet: • powermanager (https://www.siemens.com/powermanager) • Power monitoring (https://www.siemens.com/powermonitoring) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 224: 7Kn Powercenter 3000
Applications 3.7 7KN Powercenter 3000 7KN Powercenter 3000 3.7.1 IoT gateway for the intelligent power distribution equipment The 7KN Powercenter 3000 is an IoT (Internet of Things) gateway and can be used in many areas. It provides an easy and cost-efficient introduction to energy management, power distribution digitalization and cloud applications.
Page 225: Iot Data Platform
Applications 3.7 7KN Powercenter 3000 3.7.2 IoT data platform The 7KN Powercenter 3000 acquires and stores information about energy and status values directly from the 3WA circuit breaker, e.g.: • Current • Voltage • Energy It also acquires and stores information from other lower-level, communication-capable devices, such as 7KM PAC measuring devices and 3VA molded case circuit breakers.
Page 226: Parameterization And Settings
Applications 3.7 7KN Powercenter 3000 3.7.3 Parameterization and settings Parameterization and changes in settings are performed using the SENTRON powerconfig configuration software. The advantages are as follows: • Simple and cost-effective introduction to the topics of power monitoring and digitalization of power distribution, "IoT – Internet of Things", Industry 4.0, smart building •...
Page 227: Sentron Powermind
Applications 3.8 SENTRON powermind SENTRON powermind The MindSphere application SENTRON powermind stores, evaluates and displays data from low-voltage power distribution equipment, thereby creating transparency. Both actual values and comparisons of historical data are available on predefined dashboards, either device-specifically or in the form of an overview. SENTRON powermind is based on the open IoT operating system MindSphere.
Page 228 Applications 3.8 SENTRON powermind 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 229: Accessories
Accessories Overview Secondary disconnect terminals Main connections 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 230 Accessories 4.1 Overview Guide frame with installed shutter Position signaling switch module Locking provisions for withdrawable circuit breakers Contact module for grounding connection between the guide frame and the circuit breaker Coding for the withdrawable circuit breaker and the guide frame Conversion set for converting fixed-mounted circuit breakers into withdrawable circuit breakers Door sealing frame (10)
Page 231: Preparatory And Concluding Installation Steps For The Installation Of Internal Accessories
Accessories 4.2 Preparatory and concluding installation steps for the installation of internal accessories Preparatory and concluding installation steps for the installation of internal accessories Opening the circuit breaker and discharging the stored-energy spring DANGER Hazardous voltage Will cause death, serious personal injury, or equipment damage. Turn off and lock out all power supplying this equipment before working on this device.
Page 232 Accessories 4.2 Preparatory and concluding installation steps for the installation of internal accessories Opening the circuit breaker and discharging the stored-energy spring 1. Check that the circuit breaker is ready to close ("OK" indication) and the stored-energy spring is charged ("CHARGED" indication). 2.
Page 233 Accessories 4.2 Preparatory and concluding installation steps for the installation of internal accessories Operator panel Removal and installation Knocking out the cutouts 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 234 Accessories 4.2 Preparatory and concluding installation steps for the installation of internal accessories Electronic trip unit Note The installation/removal of the complete electronic trip unit is described below. For individual accessory components, the installation/removal of the electronic trip unit may differ from the installation shown here. Alternative installation/removal steps are described in the Chapter "Accessories".
Page 235 Accessories 4.2 Preparatory and concluding installation steps for the installation of internal accessories Installation For more information, refer to the Compact Operating Instructions 92310000039 (https://support.industry.siemens.com/cs/ww/en/view/109783659). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 236: Control And Signaling Accessories
Accessories 4.3 Control and signaling accessories Control and signaling accessories 4.3.1 Closing coil, shunt trip, undervoltage release 4.3.1.1 Description Closing coil (CC/CC-COM) The closing coil makes remote closing of the circuit breaker possible. The prerequisite for this is the ready-to-close status of the circuit breaker. Remote closing can take place both via the communication system and by means of electrical signals on the secondary disconnect terminal system.
Page 237 Accessories 4.3 Control and signaling accessories Shunt trip (ST/ST-COM/ST2) Up to two shunt trips make remote opening of the circuit breaker possible. Remote opening can take place both via communication and by means of electrical signals on the secondary disconnect terminal system. The shunt trips are available in three versions: •...
Page 238 Undervoltage release UVR or UVR-t and shunt trip ST2 are mounted in the same location. It is not possible to use these accessories simultaneously. The undervoltage release can be retrofit. For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783975). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 239: Technical Specifications
Accessories 4.3 Control and signaling accessories 4.3.1.2 Technical specifications Closing coil (CC/CC-COM) Rated control supply voltage U 24 … 30 V DC 48 … 60 V DC 110 … 127 V AC / 110 … 125 V DC 208 … 240 V AC / 220 … 250 V DC Operating range (acc.
Page 240 Accessories 4.3 Control and signaling accessories If the closing coil and the spring charging motor are to be supplied by the same control circuit, the following applies: Fuse protection of the control circuit at 100% OP 5% OP spring charging motor + closing coil Smallest permissible 24 …...
Page 241 Accessories 4.3 Control and signaling accessories Shunt trip (ST/ST-COM/ST2) Shunt trip Rated control supply voltage U 24 … 30 V DC 48 … 60 V DC 110 … 127 V AC / 110 … 125 V DC 208 … 240 V AC / 220 … 250 V DC Operating range (acc.
Page 242 Accessories 4.3 Control and signaling accessories Undervoltage release (UVR/UVR-t) Rated control supply voltage U 24 V DC 30 V DC 48 V DC 60 V DC 110 … 127 V AC / 110 … 125 V DC 208 … 240 V AC / 220 … 250 V DC 380 …...
Page 243: Part Number
110 … 127 V AC / 110 … 125 V DC 3WA9111-0AD15 208 … 240 V AC / 220 … 250 V DC 3WA9111-0AD16 You can purchase the accessories in the Siemens Industry Mall (https://www.siemens.com/product?3WA9111-0AD*). Shunt trip Part number Continuous duty (100% OP) 24 …...
Page 244 110 … 127 V AC / 110 … 125 V DC 3WA9111-0AE15 208 … 240 V AC / 220 … 250 V DC 3WA9111-0AE16 380 … 415 V AC 3WA9111-0AE17 You can purchase the accessories in the Siemens Industry Mall (https://www.siemens.com/product?3WA9111-0AE*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 245: Capacitor Trip Device For Shunt Trips
DIAZED fuse, gL, slow-response Miniature circuit breaker with C characteristic 4.3.2.3 Article number Article number Capacitor trip device for shunt trips 3WA9111-0AD81 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AD81). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 246: Remote Trip Alarm Reset Coil (Incl. Automatic Reset Of The Reclosing Lockout)
Compact Operating Instructions 92310000042 (https://support.industry.siemens.com/cs/ww/en/view/109783977). Automatic reset of the reclosing lockout When tripping is performed by the electronic trip unit, a reclosing lockout is activated on the circuit breaker.
Page 247: Technical Specifications Of The Remote Trip Alarm Reset Coil
220 … 250 V DC / 208 … 240 V AC 3WA9111-0EM46 Automatic reset of the reclosing lockout 3WA9111-0EM31 You can purchase the accessories in the Siemens Industry Mall (3WA9111-0EM4 (http://www.siemens.com/product?3WA9111-0EM4*) or 3WA9111-0EM31 (http://www.siemens.com/product?3WA9111-0EM31)). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 248: Emergency Open Button
(https://support.industry.siemens.com/cs/ww/en/view/109783678). 4.3.4.2 Article number Z-option Article number Emergency OPEN button 3WA9111-0AH25 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH25). 4.3.5 Digital input/output modules 4.3.5.1 Description General Digital input/output modules make it possible for the circuit breaker to communicate with secondary devices in the circuit breaker panel.
Page 249 Accessories 4.3 Control and signaling accessories Up to five IOM230 digital input/output modules and up to five IOM350 input/output modules can be connected to the CubicleBUS . The CubicleBUS address is assigned to the module using the rotary coding switch. Each module must be given a unique number between 1 and 5.
Page 250 Accessories 4.3 Control and signaling accessories The following events can be parameterized on an output of a digital input/output module: Output Tripping events L tripping Overload protection LT S tripping Short-time-delayed short- circuit protection ST Directed short-time-delayed short-circuit protection dST I tripping Instantaneous short-circuit protection INST...
Page 251 Accessories 4.3 Control and signaling accessories IOM230 digital input/output module CubicleBUS connection LEDs IN0 and IN1 Power supply connection Setting switch for module number 1 - 5 Outputs CUB LED (CubicleBUS Inputs ACT LED (Active) LEDs OUT0 to OUT2 The IOM230 digital input/output module can be mounted on a DIN rail or on the secondary disconnect terminal system of the air circuit breaker.
Page 252 Accessories 4.3 Control and signaling accessories For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109792559). IOM350 digital input/output module CubicleBUS" connection LEDs OUT0 … OUT4 Power supply connection LEDs IN0 … IN2 Setting switch for module number 1 - 5 LED CUB (CubicleBUS²)
Page 253 Module without power supply Flashing Restricted operating mode CubicleBUS communication normal No active CubicleBUS nodes ACT + CUB Flashing Identification is active For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109816036). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 254: Technical Specifications
Accessories 4.3 Control and signaling accessories 4.3.5.2 Technical specifications Technical specifications and connection IOM230 Rated control supply voltage U 24 V DC ± 20% Rated power dissipation 1.25 W Current consumption 51 mA Suitability for use Installation in stationary power distribution equipment within closed rooms Max.
Page 255 Accessories 4.3 Control and signaling accessories Max. breaking capacity (resistive) 90 W at 30 V DC 1.385 VA at 277 V AC Switching frequency 500,000 cycles at 1 A, 250 V AC, ohmic load Connectable conductor cross-sections Design of electrical connection Removable / push-in connection terminal Solid 0.2 …...
Page 256 Accessories 4.3 Control and signaling accessories The following circuit diagram shows the integration of the digital input/output module IOM230 into a control and signaling system. Depending on the load, a coupling relay must be used at the output. Chapter The bus system (Page 138) describes the connection of the module at the CubicleBUS².
Page 257 Accessories 4.3 Control and signaling accessories Digital input IN Number Rated voltage 24 V DC Operating range ± 20% SELV/PELV Suitable Voltage value for reliable detection of a "1" 15 V DC signal Current consumption at signal voltage of >15 V <10 mA Minimum signal duration 100 ms...
Page 258: Article Number
Accessories 4.3 Control and signaling accessories Ambient conditions Operation −40 … +70 °C Transport and storage −40 … +80 °C Degree of pollution • The digital inputs are designed for a control supply voltage of 24 V DC. No polarity is specified at the DI x.0 and DI x.1 input terminals. All three inputs are isolated and can be fed from independent sources.
Page 259: Spring Charging Motor
Accessories 4.3 Control and signaling accessories You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EC1*). 4.3.6 Spring charging motor 4.3.6.1 Description The spring charging motor (M) automatically charges the stored energy mechanism as soon as it is discharged (e.g. after the closing operation). This makes fast reclosing of the circuit breaker possible.
Page 260: Technical Specifications
110 … 127 V AC / 110 … 125 V DC 3WA9111-0AF05 208 … 240 V AC / 220 … 250 V DC 3WA9111-0AF06 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AF0*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 261: Motor Disconnect Switch
You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783677). 4.3.7.2 Article number Z-option Article number Motor disconnect switch 3WA9111-0AH24 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH24). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 262: Mechanical Operating Cycles Counter
Mechanical operating cycles counter Article number For circuit breakers without spring charging motor 3WA9111-0AH04 For circuit breakers with spring charging motor 3WA9111-0AH05 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH0*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 263: External Trip Controller Etc600
Accessories 4.3 Control and signaling accessories 4.3.9 External Trip Controller ETC600 4.3.9.1 Description Connection for control voltage signal 24 V DC Connection for second tripping solenoid (F6) Connection for control voltage signal 110 V AC to 240 V AC 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 264: Technical Specifications And Connection
Both adapters are included in the scope of supply. For more information on mounting, see Chapter Mounting adapter for CubicleBUS² modules (Page 384). You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109794195). 4.3.9.2 Technical specifications and connection Dimensions and weights...
Page 265 Accessories 4.3 Control and signaling accessories Supply Input voltage 24 V DC 110 … 240 V AC Current consumption 100 mA at 24 V DC for 100 ms 20 mA at 230 V AC for 100 ms Current peaks (inrush) <1 A for 100 µs possible After 100 ms <10 mA Required pulse length of input voltage 100 ms...
Page 266: Article Number
24 V DC (left side) and 110 V AC to 240 V AC (right side) to the ETC600 and the connection of the ETC600 to the air circuit breaker. 4.3.9.3 Article number Article number External Trip Controller ETC600 3WA9111-0EM62 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EM62). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 267: Second Tripping Solenoid With Reclosing Lockout
You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109794194). 4.3.10.2 Article number Article number Second tripping solenoid F6 3WA9111-0EM61 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EM61). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 268: Accessory Auxiliary Switches And Signaling Switches
Accessories 4.4 Accessory auxiliary switches and signaling switches Accessory auxiliary switches and signaling switches 4.4.1 Overview Position signaling switch module (PSS/PSS COM) for the guide frame (S30 to S35, S48, S49) Second trip alarm switch (S25) Ready-to-close signaling switch (S20) First auxiliary switch block (S1, S2) Second auxiliary switch block (S3/S4, S7/S8) Spring charge signaling switch (S21)
Page 269: Technical Specifications
• Two NO contacts and two NC contacts (S3, S4) • Two NO contacts (S7) • One NO contact and one NC contact (S8) You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783675). 4.4.2.2 Technical specifications Type...
Page 270: Article Number
2 NO contacts and 2 NC contacts (S3, S4) 3WA9111-0AG01 2 NO contacts (S7) 3WA9111-0AG02 1 NO contact and 1 NC contact (S8) 3WA9111-0AG03 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AG0*). 4.4.3 Ready-to-close signaling switch 4.4.3.1 Description Ready-to-close signaling switch S20 with the signaling contact for the ready-to-close (RTC) status signals whether the circuit breaker is ready to close.
Page 271: Technical Specifications
With breaking capacity AC13 110 … 127 V 220 ... 240 V 4.4.3.3 Article number Article number Ready-to-close signaling switch S20 3WA9111-0AH01 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH01). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 272: Spring Charge Signaling Switch
If the spring charging motor is retrofit, the switch must be ordered separately if it is required. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783662). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 273: Technical Specifications
With breaking capacity AC13 110 … 127 V 220 ... 240 V 4.4.4.3 Article number Article number Spring charge signaling switch S21 3WA9111-0AH06 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH06). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 274: Trip Alarm Switch
The trip alarm switches cannot be used in non-automatic circuit breakers. For more information, refer to the operating instructions on the internet: • Operating Instructions for trip alarm switch S24 (https://support.industry.siemens.com/cs/ww/en/view/109812892) • Operating Instructions for trip alarm switch S25 (https://support.industry.siemens.com/cs/ww/en/view/109783658)
Page 275: Technical Specifications
220 ... 240 V 4.4.5.3 Part number Trip alarm switch Z-option Part number Trip alarm switch S24 3WA9111-0AH02 Second trip alarm switch S25 3WA9111-0AH03 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH0*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 276: Position Signaling Switch Module For Guide Frame
Accessories 4.4 Accessory auxiliary switches and signaling switches 4.4.6 Position signaling switch module for guide frame 4.4.6.1 Description The position signaling switch modules (PSS COM) basically signal the current position of the 3WA circuit breaker in the guide frame: • CONNECT: Connected position •...
Page 277 Accessories 4.4 Accessory auxiliary switches and signaling switches The following signaling switches are available in the PSS position signaling switch module: PSS321 signaling switch PSS600 signaling switch • 3 x connected position • 6 x connected position S33, S34, S35 S30, S31, S32, S33, S34, S35 •...
Page 278 Accessories 4.4 Accessory auxiliary switches and signaling switches PSS111 COM and PSS400 COM position signaling switch modules Signaling switches for connection to communications module A Signaling switches for conventional method of connection The following signaling switches are available in the PSS COM position signaling switch module: PSS111 COM signaling switch PSS400 COM signaling switch...
Page 279 Note If a communication-capable 3WA1 circuit breaker with position signaling switch module is ordered, the PSS111 COM module is preassembled. For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783663). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 280: Technical Specifications
Accessories 4.4 Accessory auxiliary switches and signaling switches 4.4.6.2 Technical specifications Type Changeover contact (not COM) Contact reliability from 1 mA at 5 V DC Rated insulation voltage U 250 V, 50/60 Hz Rated impulse withstand 4 kV voltage U Connection type Spring-loaded terminal Cross-sections that can be...
Page 281: Article Number
(disconnected position and absent) PSS400 3WA9111-0AH13 for connection to the communications module 4 x connected and COM (disconnected position and absent) You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH1*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 282: Accessories For Main Connections
Accessories 4.5 Accessories for main connections Accessories for main connections 4.5.1 Main connections for fixed-mounted circuit breakers 4.5.1.1 Description Note • All main connections are made of copper and the connection surfaces are tinned or silver-plated. • Whether the different connection methods can be used depends on circuit breaker sizes, rated currents, and breaking capacity classes.
Page 283 Accessories 4.5 Accessories for main connections Vertical on top, Horizontal on top, horizontal at the bottom vertical at the bottom Main connections installed at the factory are available in the following versions: • Rear horizontal main connection (top/bottom) • Rear vertical main connection (top/bottom) •...
Page 284 Accessories 4.5 Accessories for main connections Rear vertical main connection The rear vertical main connection is mounted on the rear horizontal connection and can be ordered from the factory preassembled or it can be retrofitted by the customer. Note In the case of size 2 with 4000 A, rear vertical main connections can be supplied in two versions: •...
Page 285 Accessories 4.5 Accessories for main connections Overview of possible connection methods for fixed-mounted circuit breakers 3WA1 circuit breakers / non-automatic circuit breakers - size 1 Short- Rated short- Vertical Horizontal Front vertical on horizontal circuit circuit top / on top / breaking breaking horizontal at...
Page 286 Accessories 4.5 Accessories for main connections 3WA1 circuit breakers / non-automatic circuit breakers - size 2 Short- Rated short- Vertical Horizontal Front vertical on horizontal circuit circuit top / on top / breaking breaking horizontal at vertical at capacity capacity the bottom the bottom class...
Page 287: Technical Specifications
1150 V AC 130 kA for 4-pole circuit breakers/non-automatic circuit breakers For more information, refer to the operating instructions on the internet: • Front-accessible main connections for fixed-mounted circuit breakers (https://support.industry.siemens.com/cs/ww/en/view/109783686) • Rear-accessible main connections for fixed-mounted circuit breakers (https://support.industry.siemens.com/cs/ww/en/view/109783687) 4.5.1.2...
Page 288: Article Number
For breaking capacity S, M, H, E, D up to 2500 A, 1 x 3WA9111-0AM21 is required for each connection, for 3200 A or for breaking capacity C or D/E 4000 A DC, 2 x 3WA9111-0AM21 are required for each connection. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AM*). 3WA1 air circuit breaker...
Page 289 1250 … 2000 A 3WA9111-0AL14 Size 2 ≤ 2000 A 3WA9111-0AL24 2500 A 3WA9111-0AL25 3200 A 3WA9111-0AL26 Size 3 4000 A 3WA9111-0AL32 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AL*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 290: Main Connections For Withdrawable Circuit Breakers
Accessories 4.5 Accessories for main connections 4.5.2 Main connections for withdrawable circuit breakers 4.5.2.1 Description Note • All main connections are made of copper and the connection surfaces are tinned or silver-plated. • Whether the different connection methods can be used depends on circuit breaker sizes, rated currents, and breaking capacity classes.
Page 291 Accessories 4.5 Accessories for main connections Front-accessible, Horizontal on top, Vertical on top, double hole vertical at the bottom horizontal at the bottom Flange on top, Horizontal on top, horizontal at the bottom flange at the bottom Main connections installed at the factory are available in the following versions: •...
Page 292 Accessories 4.5 Accessories for main connections Note In the case of combinations of horizontal and vertical connections, derating of the rear horizontal main circuit connection always applies. This has a higher derating value due to the higher eddy current losses, see Chapter Derating in the power distribution equipment (Page 517).
Page 293 Accessories 4.5 Accessories for main connections Flange connection The flange connection makes it possible to connect connecting bars to the rear of the guide frame. It can be pre-installed at the factory. If it is ordered as an accessory, it can retrofit by the customer to replace the originally supplied main circuit connection.
Page 294 Accessories 4.5 Accessories for main connections 3WA1 circuit breakers / non-automatic circuit breakers - size 1 Short- Rated Vertical Horizont Front Flange vertical horizont flange horizon circuit short- on top / al on top on top tal on breaking circuit horizont / vertical top /...
Page 295 Accessories 4.5 Accessories for main connections 3WA1 circuit breakers / non-automatic circuit breakers - size 2 Short- Rated Vertical Horizont Front Flange vertical horizont flange horizon circuit short- on top / al on top on top tal on breaking circuit horizont / vertical top /...
Page 296 Accessories 4.5 Accessories for main connections 3WA1 non-automatic circuit breakers for DC - size 2 Short- Rated Vertical Horizont Front Flange vertical horizont flange horizon circuit short- on top / al on top on top tal on breaking circuit horizont / vertical top / capacity...
Page 297: Technical Specifications
3WA9111-0AX23 ≤ 3200 A, 3WA9111-0AX24 only for breaking capacity C Size 3 ≤ 5000 A 3WA9111-0AX31 Not for breaking capacity C You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AM*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 298 1 set with 4 units Compatible with 3WL Size 3 ≤ 5000 A 3WA9111-0AV31 Not for breaking capacity C You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AV*). Flange connection Article number Top or bottom Size 1 ≤ 1000 A 3WA9111-0AW11 1250 …...
Page 299 Set for 3 poles + N 3WA9111-0AN85 Size 3 Set for 3 poles 3WA9111-0AN83 Set for 3 poles + N 3WA9111-0AN86 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AN*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 300: Accessories For Secondary Disconnect Terminals
Compression screw terminal for secondary disconnect terminals The dummy block for secondary disconnect terminals is also available as an accessory for unused secondary disconnect terminal blocks. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109781519). 4.6.1.2 Connection 3WA1 air circuit breaker...
Page 301: Part Number
3WA9111-0AB04 terminals Coding kit for secondary disconnect terminals 3WA9111-0AB07 Dummy block for secondary disconnect terminals 3WA9111-0AB12 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AB*). 4.6.2 Secondary disconnect terminals for withdrawable circuit breakers 4.6.2.1 Description The secondary disconnect terminal for the withdrawable circuit breaker comprises: •...
Page 302: Connection
Compression screw terminal for secondary disconnect 3WA9111-0AB03 terminals Push-in connection terminal for secondary disconnect 3WA9111-0AB04 terminals Sliding disconnect secondary contact modules for guide 3WA9111-0AB08 frame You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AB*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 303: Conversion Kit For Withdrawable Circuit Breakers And Rating Coding Of The Guide Frame
Accessories 4.7 Conversion kit for withdrawable circuit breakers and rating coding of the guide frame Conversion kit for withdrawable circuit breakers and rating coding of the guide frame 4.7.1 Conversion kit for converting fixed-mounted circuit breakers/non- automatic circuit breakers into withdrawable circuit breakers 4.7.1.1 Description The conversion kit can be used for converting fixed-mounted circuit breakers into...
Page 304: Technical Specifications
Size 3 3WA9111-0BC13 4-pole Size 1 3WA9111-0BC14 Size 2 3WA9111-0BC15 Size 3 3WA9111-0BC16 Only for breaking capacity N, S, M and H You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BC1*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 305: Equipment-Dependent Coding
You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109792972). 4.7.2.2 Article number Equipment-dependent coding Article number Size 1 / 2 3WA9111-0AR11 Size 3 3WA9111-0AR12 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AR1*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 306: Accessories For Protection Against Unauthorized Operation
Accessories 4.8 Accessories for protection against unauthorized operation Accessories for protection against unauthorized operation 4.8.1 Overview of locking devices and locking provisions Locking provision for padlocks Locking provision to prevent unauthorized closing - Safe Open Locking provision for mechanical close/open Locking provision for charging handle Locking provision for racking handle 3WA1 air circuit breaker...
Page 307 Accessories 4.8 Accessories for protection against unauthorized operation Locking provision for safety locks Locking provision to prevent unauthorized closing - Safe Open Locking provision for local electric close Key operation for local mechanical close Locking provision to prevent racking of the withdrawable circuit breaker in the disconnected position Locking provision to prevent unauthorized closing of the withdrawable circuit breaker Locking provision for racking handle Lockable and sealable cover for the electronic trip unit...
Page 308 Accessories 4.8 Accessories for protection against unauthorized operation Locking provisions Locking provision to prevent racking of the withdrawable circuit breaker in the disconnected position Locking provision to prevent racking of the withdrawable circuit breaker when the control cabinet door is open Locking provision to prevent opening of the control cabinet door when the circuit breaker is closed Locking provision to prevent closing of the withdrawable circuit breaker when the control cabinet door is open 3WA1 air circuit breaker...
Page 309: Locking Provision To Prevent Unauthorized Closing - Safe Open
Accessories 4.8 Accessories for protection against unauthorized operation 4.8.2 Locking provision to prevent unauthorized closing - Safe Open 4.8.2.1 Description In the case of locking provisions to prevent unauthorized closing - Safe Open, either padlocks or safety locks securely lock the circuit breaker in the open state (e.g. during service calls and inspections).
Page 310: Activation
Padlocks are not included in the scope of supply. The locking provisions can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783685). 4.8.2.2 Activation The lock can only be activated when the circuit breaker is open. The locking provision is disabled when the circuit breaker is closed.
Page 311: Part Number
Made by CES 3WA9111-0BA35 Made by IKON 3WA9111-0BA36 Assembly kit for padlocks 3WA9111-0BA37 The padlock is not included in the scope of supply. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA3*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 312: Local Electric Close
The local electric close and the motor disconnect switch are mounted in the same location. It is not possible to use these accessories simultaneously. The local electric close can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783677). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 313: Connection
Locking provision for local electric close Z-option Part number With sealing cap 3WA9111-0AH21 Key operation with CES lock 3WA9111-0AH22 Key operation with IKON lock 3WA9111-0AH23 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AH2*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 314: Locking Provision For Charging Handle For Padlocks
The locking provision is for one padlock with a maximum diameter of 8 mm. It can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783679). 4.8.4.2 Activation 4.8.4.3...
Page 315: Cover For The Electronic Trip Unit
Accessories 4.8 Accessories for protection against unauthorized operation You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA71). 4.8.5 Cover for the electronic trip unit 4.8.5.1 Description A two-part transparent cover is available as an accessory for the electronic trip unit.
Page 316: Locking Provision To Prevent Unauthorized Closing Of The Withdrawable Circuit Breaker
• Made by KIRK Key • Made by Ronis • Made by Profalux The locking provision can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783676). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 317: Activation
KIRK Key C 900-301. Made by Ronis 3WA9111-0BA58 Made by Profalux 3WA9111-0BA50 The lock is not included in the scope of supply. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA5*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 318: Locking Provision With Padlock For The Racking Handle Of The Racking Mechanism
This accessory forms part of the conversion kit for converting fixed-mounted circuit breakers into withdrawable circuit breakers. The padlocks are not included in the scope of supply. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783974). 4.8.7.2 Activation 3WA1 air circuit breaker...
Page 319: Locking Provision With Safety Lock For The Racking Handle
• Locking provision with lock operation, made by IKON • Locking provision for lock operation, made by KIRK Key. The locking provision for the racking handle can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783974). 4.8.8.2 Activation Note The lock is only active when the key is removed.
Page 320: Part Number
KIRK Key C 900-301. The lock must be retrofit by the customer; it is not available from the factory preinstalled. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 321: Shutters
Size 2 3WA9111-0AP11 Size 2 3WA9111-0AP44 Size 3 3WA9111-0AP12 Not for 3WA12..-6… (breaking capacity C) Only for 3WA12..-6… (breaking capacity C) You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AP*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 322: Locking Provision To Prevent Opening Of The Control Cabinet Door When The Circuit Breaker Is Closed
The locking provision can be overridden by a deliberate action if necessary, see Chapter Activation / override (Page 321). The locking provision can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783680). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 323: Activation / Override
Z-option Article number cabinet door when the circuit breaker is closed Fixed-mounted, can be overridden 3WA9111-0BB12 Withdrawable, can be overridden 3WA9111-0BB13 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BB1*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 324: Locking Provision To Prevent Racking Of The Withdrawable Circuit Breaker In The Disconnected Position
• Locking provision to prevent unauthorized closing of the withdrawable circuit breaker, all makes of safety lock The locking provision can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783670). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 325: Activation
3WA9111-0BA83 Made by Ronis 3WA9111-0BA84 The scope of supply comprises the Bowden cable and the lock in the control cabinet door. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA8*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 326: Locking Provision To Prevent Racking Of The Withdrawable Circuit Breaker When The Control Cabinet Door Is Open
• Locking provision to prevent racking of the withdrawable circuit breaker in the disconnected position, all makes of safety lock This locking provision can be retrofit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783669). 4.8.12.2 Activation 3WA1 air circuit breaker...
Page 327: Article Number
Locking provision to prevent racking of the withdrawable circuit breaker 3WA9111-0BB15 when the control cabinet door is open You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BB15). 4.8.13 Locking provision to prevent closing of the withdrawable circuit breaker when the control cabinet door is open 4.8.13.1...
Page 328: Activation / Override
Accessories 4.8 Accessories for protection against unauthorized operation You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109782564). 4.8.13.2 Activation / override 4.8.13.3 Part number Z-option Part number Locking provision to prevent closing of the withdrawable circuit breaker when the control cabinet door is open The locking provision can only be installed at the factory.
Page 329: Interlocking
Accessories 4.9 Interlocking Interlocking 4.9.1 Mechanical interlocking (Bowden cable interlocking) 4.9.1.1 Description Mechanical interlocking interlocks two or three circuit breakers. The circuit breakers can be installed both horizontally and vertically. • The interlocking device for two circuit breakers only ever releases one circuit breaker at a time, thereby ensuring that only the released circuit breaker can be operated.
Page 330 Accessories 4.9 Interlocking Interlocking module with connections for the Bowden cables: (1) Output 1 (3) Input 2 (2) Input 1 (4) Output 2 Additional Bowden cables can be ordered separately, also in different lengths. The following Bowden cable lengths are available: •...
Page 331 Accessories 4.9 Interlocking Accessories required for interlocks Mechanical interlocking must be ordered separately for each of the circuit breakers to be interlocked. • Two interlocking modules and two Bowden cables are required for interlocking two circuit breakers. This means it is sufficient to order two mechanical interlocks provided the required Bowden cable length does not exceed 2 m.
Page 332 Circuit breaker open and not ready to close (interlocked) Circuit breaker open and ready to close (not interlocked) You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109792564). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 333: Part Number
Can only be used with separately ordered guide frame. Can only be used with separately ordered circuit breaker without guide frame. One required for each size 3 circuit breaker You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BB*). 3WA1 air circuit breaker...
Page 334: Interlocking Of Two Circuit Breakers Using A Bowden Cable
Accessories 4.9 Interlocking 4.9.2 Interlocking of two circuit breakers using a Bowden cable Example Possible circuit breaker statuses Description In the case of a line infeed via transformer and a generator infeed, a circuit breaker can only ever be closed when the other one is open. Power is provided either by the normal power supply (circuit breaker Q1) or the standby power supply (circuit breaker Q2).
Page 335: Interlocking Of Three Circuit Breakers (One Of Three) Using A Bowden Cable
Accessories 4.9 Interlocking 4.9.3 Interlocking of three circuit breakers (one of three) using a Bowden cable Example Possible circuit breaker statuses Description In the case of parallel circuit breakers (e.g. redundancy), when one circuit breaker is closed, the other two cannot be closed. Required materials An interlocking module with a Bowden cable and an extra Bowden cable are required for each circuit breaker, i.e.
Page 336: Interlocking Of Three Circuit Breakers Using A Bowden Cable
Accessories 4.9 Interlocking 4.9.4 Interlocking of three circuit breakers using a Bowden cable Example Possible circuit breaker statuses Description In the case of parallel infeeds from the normal power supply (circuit breakers Q1 and Q3) and a standby power supply (circuit breaker Q2), the standby power supply may only be switched on when the two normal line infeeds are switched off.
Page 337: Interlocking Of Three Circuit Breakers, Two Of Which Are Interlocked, Using A Bowden Cable
Accessories 4.9 Interlocking 4.9.5 Interlocking of three circuit breakers, two of which are interlocked, using a Bowden cable Example Possible circuit breaker statuses Description The normal power supply (circuit breaker Q1) and the standby power supply (circuit breaker Q3) are isolated by means of a coupling (circuit breaker Q2). The normal power supply can also supply the loads of the standby power supply via the coupling.
Page 338: Interlocking Of Three Circuit Breakers Using A Bowden Cable
Accessories 4.9 Interlocking 4.9.6 Interlocking of three circuit breakers using a Bowden cable Example Possible circuit breaker statuses Description In order to minimize the short-circuit load on the power supply, the two infeeds may not be switched on when the coupling is closed. Up to two circuit breakers can be closed at any time, but the third is interlocked.
Page 339: Interlock For Mechanical Close/Open
Accessories 4.9 Interlocking 4.9.7 Interlock for mechanical close/open 4.9.7.1 Description This interlock can be used to protect the mechanical close and/or the mechanical open against operation. Unauthorized mechanical closing and/or opening is prevented. Note Closing by the local electric close or by remote closing remains possible. Remote opening (e.g.
Page 340: Activation
Set consisting of 2 transparent covers for sealing or for attaching padlocks, 2 covers with 6.35 mm hole (for tool actuation) and 2 lock mounts for safety lock for key operation. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA2*).
Page 341: Interlock System To Prevent Unauthorized Closing
Article number Interlock system to prevent unauthorized closing Article number For 3 circuit breakers with key operation, made by CES 3WA9111-0BA43 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BA43). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 342: Accessories For Integration In The Power Distribution Equipment
You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783683). 4.10.1.2 Article number Z-option Article number Door sealing frame 3WA9111-0AP01 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AP01). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 343: Ip55 Protective Cover
Accessories 4.10 Accessories for integration in the power distribution equipment 4.10.2 IP55 protective cover 4.10.2.1 Description The transparent protective cover protects the complete front side of the circuit breaker. In this way, degree of protection IP 55 is achieved. Note Check the position and seal of the protective cover after a short-circuit trip.
Page 344: Article Number
You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783684). 4.10.2.2 Article number Article number IP55 protective cover 3WA9111-0AP03 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AP03). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 345: Arc Chute Cover
Article number 3-pole Size 1 3WA9111-0AS31 Size 2 3WA9111-0AS32 Size 3 3WA9111-0AS33 4-pole Size 1 3WA9111-0AS41 Size 2 3WA9111-0AS42 Size 3 3WA9111-0AS43 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AS*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 346: Grounding Connection Between The Guide Frame And The Circuit Breaker
– Ground short-circuit currents ≤ 60 kA: Two contact modules • For the withdrawable circuit breaker: – One contact module You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783682). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 347: Article Number
For 30 kA ground short-circuit current: order 1 x; for 60 kA ground short-circuit current: order Cannot be used for breaking capacity C and size 2, 4000 A Cannot be used for breaking capacity E You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BG*). 3WA1 air circuit breaker...
Page 348: Support Brackets
Article number Article number Support bracket, scope of supply: 2 units 3WA9111-0BB50 Can only be used for sizes 1 and 2 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0BB50). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 349: Accessories For The Etu300 And Etu600 Electronic Trip Units
• or the fixed-mounted circuit breaker is open and the electronic trip unit is disconnected from the auxiliary power supply • or the electronic trip unit is removed. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783657). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 350: Article Number
1000 A 1250 A 1600 A 2000 A 2500 A 3200 A 4000 A 5000 A 6300 A You can purchase the accessories in the Siemens Industry Mall (3WA9111-0EB.. (http://www.siemens.com/product?3WA9111-0EB*) or 3WA9111-0EX.. (http://www.siemens.com/product?3WA9111-0EX*)). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 351: External Current Sensor For Neutral Pole
The current sensor is supplied with a 2 m long twisted connection cable that is fitted with the appropriate plug-in connector for the sensor. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783671). 4.11.2.2 Technical specifications You can find the dimensions in Chapter External current sensor for the neutral pole (N- CT) (Page 482).
Page 352: Article Number
For size 3 3WA9111-0AA23 Version with copper connection elements For size 1 3WA9111-0AA31 For size 2 3WA9111-0AA32 For size 3 3WA9111-0AA33 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AA*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 353: Voltage Tap Module Vtm For Etu600
In this case, the accessory "Internal voltage tap on main current paths (Page 364)" is required. For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783655). See also Retrofit of the internal voltage tap (Page 366) 3WA1 air circuit breaker...
Page 354: Article Number
Article number VTM640 3WA9111-0EM11 VTM680 3WA9111-0EM12 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EM1*). VTM680 voltage tap module and internal cable harness for voltage Article number tap for 3WA air circuit breakers with ID number lower than ID No.
Page 355: Adapter For The Activation Of The Etu300
Accessories 4.11 Accessories for the ETU300 and ETU600 electronic trip units 4.11.4 Adapter for the activation of the ETU300 4.11.4.1 Description The ETU300 electronic trip unit can be supplied with external voltage and activated using the TD400 commissioning, test and service tool. A status check of the ETU300 is then possible.
Page 356: Article Number
4.11 Accessories for the ETU300 and ETU600 electronic trip units 4.11.4.3 Article number Article number TD400 commissioning, test and service tool 3VW9011-0AT40 3WA-ETU300 adapter 3VW9011-0AT46 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3VW9011-0AT4*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 357: Internal Current Sensors Without Energy Cores
The auxiliary power supplying the electronic trip unit is internally coupled to the undervoltage release of the circuit breaker. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109816505). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 358: Technical Specifications
Accessories 4.11 Accessories for the ETU300 and ETU600 electronic trip units 4.11.5.2 Technical specifications The internal current sensors without energy cores can only be installed at the factory in the case of the 3WA12 and 3WA13 circuit breakers. A retrofit is not technically possible. Note If the option Z = K60 is installed, an optional metering function PMF-I to PMF-III is possible.
Page 359: Article Numbers
Accessories 4.11 Accessories for the ETU300 and ETU600 electronic trip units Terminal connection diagram of secondary disconnect terminals X5 and X8 4.11.5.4 Article numbers Z-option Article number Internal current sensors without energy cores 3WA... 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 360: Ready4Com Thanks To Bss200 Breaker Status Sensor For Etu600
Accessories 4.11 Accessories for the ETU300 and ETU600 electronic trip units 4.11.6 Ready4COM thanks to BSS200 Breaker Status Sensor for ETU600 4.11.6.1 Description The 3WA circuit breaker obtains the "ready4COM" feature thanks to the BSS200 Breaker Status Sensor. The BSS200 Breaker Status Sensor forms part of every circuit breaker with the ETU600 electronic trip unit with the "ready4COM"...
Page 361: Technical Specifications
24 V DC ± 20% Power consumption 1.3 W Current consumption 50 mA 4.11.6.3 Article number Article number BSS200 breaker status sensor 3WA9111-0EC40 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EC40). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 362: Zsi200 Zone Selective Interlocking Module
Accessories 4.11 Accessories for the ETU300 and ETU600 electronic trip units 4.11.7 ZSI200 zone selective interlocking module 4.11.7.1 Description The load on a power distribution system can be reduced under short-circuit and ground fault conditions when circuit breakers are used in a ZSI system. Short-circuits and ground faults are disconnected after a short delay, independently of the coordination of the response characteristics of the circuit breakers.
Page 363: Technical Specifications
ZSI control signal not present Sends ZSI control signal Flashing Receives ZSI control signal For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109816504). 4.11.7.2 Technical specifications Rated control supply voltage U 24 V DC ± 20% Rated power dissipation 0.72 W...
Page 364: Article Number
Transport and storage -40 … +80 °C Degree of pollution 4.11.7.3 Article number Article Article number ZSI200 zone selective interlocking module 3WA9111-0EC10 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EC10). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 365: Replacement Battery For Etu600
The current state of charge is displayed in the upper display line of the ETU600 electronic trip unit: Battery full Battery empty, replacement necessary The battery can be ordered as a spare part from Siemens and replaced on site. 4.11.8.2 Replacing the battery 4.11.8.3...
Page 366: Internal Voltage Tap On Main Current Paths
The position (upper stab/lower stab) can be changed using a conversion kit. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783660). 4.12.1.2 Article number Voltage tap conversion - from lower to upper stab...
Page 367 Article number 3-pole Size 1 3WA9111-0EK31 Size 2 3WA9111-0EK32 Size 3 3WA9111-0EK33 4-pole Size 1 3WA9111-0EK41 Size 2 3WA9111-0EK42 Size 3 3WA9111-0EK43 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EK*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 368: Retrofit Of The Internal Voltage Tap
It is not possible to move the voltage tap from the bottom to the top main connections during a retrofit. For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109795042). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 369: Article Number
Size 1 3WA9111-0EK65 Size 2 3WA9111-0EK66 Size 3 3WA9111-0EK67 The scope of supply includes: VTM680 The scope of supply includes: VTM640 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EK*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 370: Connection Of An External Voltage Transformer
Accessories 4.13 Connection of an external voltage transformer 4.13 Connection of an external voltage transformer 4.13.1 Description A circuit breaker with the ETU600 electronic trip unit can be configured with an optional metering function. An internal voltage tap or an external voltage transformer in conjunction with a VTM voltage tap module is required for measuring the voltage.
Page 371: Connection
The phase voltage in a 690 V system is 400 V. Primary voltage U of the voltage transformers used should be 400 V. For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/en/view/109795097). 4.13.2 Connection The voltage transformers must be wired as shown in the circuit examples and fused on both the primary and secondary sides.
Page 372: Article Number
4.13 Connection of an external voltage transformer 4.13.3 Article number Article number Retrofit kit to connect an external voltage transformer 3WA9111-0EK81 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EK81). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 373: Function Packages For The Etu600 Electronic Trip Unit
Accessories 4.14 Function packages for the ETU600 electronic trip unit 4.14 Function packages for the ETU600 electronic trip unit 4.14.1 Description The properties of the ETU600 electronic trip unit can be extended using digital function packages. The different function packages make it possible to configure customized protection and metering functionality for the circuit breaker to suit the particular application.
Page 374: Article Number
Ground-fault alarm 3WA9111-0ES01 Directional short time dST and reverse power protection RP 3WA9111-0ES05 Requires an additional voltage tap module You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0ES0*). 4.14.3 Function packages for enhanced protective functions EPF 4.14.3.1 Description...
Page 375: Article Number
THD: Total harmonic distortion for current and voltage 3WA9111-0ES16 Reverse-phase sequence protection 3WA9111-0ES17 The packages requires an additional voltage tap module. You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0ES1*). 4.14.4 Function packages for function extensions 4.14.4.1 Description The functional expansions include a second protection parameter set.
Page 376: Function Packages For Metering Values
Accessories 4.14 Function packages for the ETU600 electronic trip unit 4.14.5 Function packages for metering values 4.14.5.1 Description Function packages can be used for circuit breakers with a metering function to display the additional metering values of the PMF-II and PMF-III application packages. Metering values PMF-I Energy PMF-II Basic...
Page 377: Article Number
Function packages for metering values Article number PMF-II Basic Power Monitoring 3WA9111-0ES52 PMF-III Advanced Power Monitoring 3WA9111-0ES53 Requires a voltage tap module You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0ES5*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 378: Communication Interface
Accessories 4.15 Communication interface 4.15 Communication interface 4.15.1 PROFINET IO/Modbus TCP module COM190 4.15.1.1 Description The COM190 is the communications module for the 3WA circuit breaker. It forms part of the internal circuit breaker communications system (CubicleBUS ) and provides a wide range of functions in conjunction with other CubicleBUS nodes, e.g.: •...
Page 379: Technical Specifications
4.15 Communication interface The COM190 communications module can either be installed on the circuit breaker or operated externally on a DIN rail. You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783978). 4.15.1.2 Technical specifications Device configuration •...
Page 380: Article Number
3WA_____-_C___-____Z + F19 feature and COM190 with adapters for mounting on the non-automatic circuit breaker, preassembled connection cable, terminating resistor and instructions You can purchase the accessories in the Siemens Industry Mall (https://www.siemens.com/product?3WA9111-0EC13). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 381: Modbus Rtu Module Com150
It has a Modbus RTU interface for connection to the PC or network. The COM150 communications module can either be installed on the circuit breaker or operated externally on a DIN rail. For more information, refer to the operating instructions on the internet (https://support.industry.siemens.com/cs/ww/de/view/109816501). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 382: Technical Specifications
Accessories 4.15 Communication interface 4.15.2.2 Technical specifications Device configuration • X61, X62, and X65 terminals • Modbus RTU interface for connecting to the PC or network • CubicleBUS² module • Factory settings: 19,200 baud, 8N2, server address 247 Design of the power supply DC power supply unit IEC 61558 SELV/PELV Operating range...
Page 383: Article Number
3WA_____-_C___-____Z + F15 feature and COM150 with adapters for mounting on the non-automatic circuit breaker, preassembled connection cable, terminating resistor and instructions You can purchase the accessories in the Siemens Industry Mall (https://www.siemens.com/product?3WA9111-0EC15). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 384: Position Signaling Switch Module For Connection To The Communication Module
Test position S31 • Connected position S34 You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109783663). 4.15.3.2 Article number You can find the article number in Chapter Position signaling switch module for guide frame (Page 274).
Page 385: Cubiclebus² Terminating Resistor
You will find more information in the operating instructions available on the internet (https://support.industry.siemens.com/cs/ww/en/view/109792563). 4.15.4.2 Technical specifications Resistance 120 Ω Power rating 0.25 W 4.15.4.3 Article number Article number CubicleBUS² terminating resistor 3WA9111-0EC50 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EC50). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 386: Mounting Adapter For Cubiclebus² Modules
Article number Mounting adapter for CubicleBUS modules Article number For the secondary disconnect terminal system 3WA9111-0EC60 For DIN rail mounting 3WA9111-0EC61 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0EC6*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 387: Special Packaging
Accessories 4.16 Special packaging 4.16 Special packaging 4.16.1 Description Cardboard packaging with a water-repellent coating can be ordered for transport with increased moisture protection requirements, e.g. during the rain season in the tropics. 4.16.2 Article number Z-option Special packaging 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 388 Accessories 4.16 Special packaging 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 389: Inspection And Maintenance
Inspection and maintenance General In addition to the costs of purchasing the switching devices and power distribution equipment, the expenditure associated with service and maintenance are a significant cost and time factor for the operator. • Inspection: Inspection refers to visual inspection of the circuit breaker and testing of the electrical and mechanical functions of the circuit breaker.
Page 390 For more information, see Chapter Maintaining the main contacts (Page 405). Siemens offers training measures for performing maintenance on the 3WA circuit breaker. At the end of the training course, it is possible to take a certification exam.
Page 391: Safety Regulations
Inspection and maintenance 5.2 Safety regulations Safety regulations DANGER Hazardous voltage Will cause death, serious personal injury, or equipment damage. During operation, parts of the device or system are carrying hazardous electrical voltage. Improper handling of the device or system can result in death or serious injury, as well as significant material damage.
Page 392: Planning Of Inspection And Maintenance
Inspection and maintenance 5.3 Planning of inspection and maintenance Planning of inspection and maintenance 5.3.1 Inspection interval WARNING Malfunction due to insufficient inspection or maintenance The circuit breaker may not function properly if inspection intervals are not adhered to or if maintenance measures are not performed. It is absolutely necessary to adhere to the prescribed inspection and maintenance intervals and the instructions on repair and replacement in order to avoid personal injury and damage to equipment.
Page 393: Scope
Inspection and maintenance 5.3 Planning of inspection and maintenance 5.3.2 Scope Inspection The inspection comprises: • Visual inspection for: – Pollution – Damage – Corrosion • Check of available documentation and of rating/accessory label to ensure that they correspond to the actual circuit breaker equipment. •...
Page 394 Inspection and maintenance 5.3 Planning of inspection and maintenance Maintenance For 3WA circuit breakers, only the arc chutes, the arc chute covers and the contact system require maintenance. Replacing arc chutes and the contact system The arc chutes and the contact system may need to be replaced depending on their condition and at the latest when the number of electrical and mechanical operating cycles without maintenance has been reached.
Page 395: Logging
Inspection and maintenance 5.3 Planning of inspection and maintenance 5.3.3 Logging Note Obligation to maintain logs for warranty claims The operator must log all inspection and maintenance work. The logs should be kept in the archive for at least ten years. In order to make it possible to clearly identify the circuit breaker and the general data, every log should contain the following information: •...
Page 396: Performing Inspection
Inspection and maintenance 5.4 Performing inspection Performing inspection 5.4.1 General NOTICE Material damage resulting from relubrication The circuit breaker mechanism is sufficiently lubricated during production. Relubrication of the circuit breaker mechanism is unnecessary and may result in material damage. Never lubricate the breaker mechanism or the contacts of the circuit breaker. NOTICE Material damage due to blown particulates Disturbed dust can affect the function of the circuit breaker.
Page 397: Check Of The Available Documentation And Of The Rating/Accessory Label
5.4.4 Testing of mechanical function of the circuit breaker Note Siemens recommends closing and opening under a load of at least 200 A. Check the following items: • Manual operating mechanism: – Perform nine strokes (final stroke requires slightly more force) –...
Page 398: Testing Of Mechanical Function Of The Withdrawable Circuit Breaker And The Guide Frame
Inspection and maintenance 5.4 Performing inspection 5.4.5 Testing of mechanical function of the withdrawable circuit breaker and the guide frame Note The inspection of the withdrawable circuit breaker also includes all the items in Section Testing of mechanical function of the circuit breaker (Page 395). Check the following items: •...
Page 399: Testing Of Mechanical And Electrical Function Of Internal Accessories
Inspection and maintenance 5.4 Performing inspection 5.4.7 Testing of mechanical and electrical function of internal accessories NOTICE Damage to accessories Incorrect auxiliary power supply can damage internal accessories. The electrical functions of the internal accessories may only be tested with control voltage.
Page 400: Testing Of Settings And Inspection Of Electronic Trip Unit
The electronic trip unit monitors itself continuously and signals detected errors. The SENTRON powerconfig configuration software assists with the documentation. For more information on powerconfig, refer to the internet (https://mall.industry.siemens.com/mall/en/WW/Catalog/Products/10230050). Check the following items or perform the following checks: • Visual inspection of the electronic trip unit •...
Page 401: Testing Of The Function Of The Cubiclebus² Modules
Inspection and maintenance 5.4 Performing inspection 5.4.10 Testing of the function of the CubicleBUS² modules Check the following items: • Secure fitting and wiring damage for the following components: – All modules mounted on the circuit breaker, e.g. COM190 or IOM230 –...
Page 402: Preparing For Maintenance Work
Inspection and maintenance 5.5 Preparing for maintenance work Preparing for maintenance work Note Observe the instructions in Chapter Safety regulations (Page 389). 1. Open the control cabinet door. Follow the instructions in the operating instructions for the relevant interlock to bypass an optionally installed interlock.
Page 403 Inspection and maintenance 5.5 Preparing for maintenance work 2. Open the circuit breaker and discharge the stored-energy spring. – Press O / OPEN. – Isolate the auxiliary circuits by unplugging the manual connectors. – Press I / CLOSE. A charged stored-energy spring is discharged. –...
Page 404 Inspection and maintenance 5.5 Preparing for maintenance work 3. Withdrawable version: Remove the circuit breaker from the guide frame. Note Use the handles of the circuit breaker for lifting and craning. 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 405: Maintaining The Arc Chutes
Inspection and maintenance 5.6 Maintaining the arc chutes Maintaining the arc chutes NOTICE Damage to the arc chutes If the disassembled chutes are set down in the vertical position, the insulating walls of the arc chutes can be damaged. Always lay arc chutes on their sides. 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 406 Inspection and maintenance 5.6 Maintaining the arc chutes 1. Remove the arc chute. – Standard arc chute: – High arc chutes: 2. Perform a visual inspection for severe wear. Wear is indicated by burnout on the arc quenching plates or holes in the side walls of the arc chutes.
Page 407: Maintaining The Main Contacts
Size 3 Breaking capacity H 3WA9111-0AS17 Breaking capacity E and C 3WA9111-0AS18 You can purchase the accessories in the Siemens Industry Mall (http://www.siemens.com/product?3WA9111-0AS*). Maintaining the main contacts 5.7.1 Introduction The main contacts can be replaced as often as required until the circuit breaker has reached its maximum mechanical service life including maintenance.
Page 408: Maintaining The Main Contacts And Replacing The Contact System
Inspection and maintenance 5.7 Maintaining the main contacts The number of mechanical operating cycles is usually greater than the number of purely electrical operating cycles; they can be equal at most. For information on the maximum mechanical service life, see Chapter Technical specifications of 3WA circuit breakers (Page 489).
Page 409 Inspection and maintenance 5.7 Maintaining the main contacts 7. If the indicator pin is no longer visible, you must replace the contact system. Please refer to the table of article numbers when reordering, see Chapter Article number (Page 414). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 410 Inspection and maintenance 5.7 Maintaining the main contacts 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 411 Inspection and maintenance 5.7 Maintaining the main contacts 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 412 Inspection and maintenance 5.7 Maintaining the main contacts Note Before unplugging the connectors, take note of the cable routing. The cable routing must be restored in the same way during installation, in order to prevent cables from being trapped during assembly. 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 413 Inspection and maintenance 5.7 Maintaining the main contacts 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 414 Inspection and maintenance 5.7 Maintaining the main contacts 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 415 Inspection and maintenance 5.7 Maintaining the main contacts Note Clean and lubricate the bearing points and coupling bolts prior to assembly. Grease: Isoflex Topas NB52, Klüber Lubrication München SE & Co. KG 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 416: Article Number
Article number Note Replacement only to be performed by the manufacturer In the case of the following circuit breakers, only Siemens may replace the main contacts, as a special calibration procedure is required: • Size 1: – 3WA11..-4…, devices with breaking capacity M –...
Page 417 1000 A, 2000 A D, E [DC] 3WA9111-0AQ67 4000 A D, E [DC] 3WA9111-0AQ68 Size 3 4000 A 3WA9111-0AQ70 5000 A, 6300 A 3WA9111-0AQ72 You can purchase the accessories in the Siemens Industry Mall (https://www.siemens.com/product?3WA9111-0AQ*). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 418: Decommissioning
Inspection and maintenance 5.8 Decommissioning Decommissioning 1. Press O / OPEN. 2. Release the auxiliary circuits. 3. Isolate the auxiliary circuits. 4. Press I / CLOSE. 5. Press O / OPEN. 6. Check the switch position indicators. 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 419: Technical Specifications
Technical specifications Circuit diagrams 6.1.1 Secondary disconnect terminal blocks X5 to X9 and their terminal markings The secondary disconnect terminal blocks are mounted above the operator panel. Secondary disconnect terminal block X9 (sizes 2 and 3 only) Secondary disconnect terminal block X8 Secondary disconnect terminal block X7 Secondary disconnect terminal block X6 Secondary disconnect terminal block X5...
Page 420: Terminal Connection Diagrams Of Secondary Disconnect Terminal
Technical specifications 6.1 Circuit diagrams 6.1.2 Terminal connection diagrams of secondary disconnect terminal 6.1.2.1 ETU300 terminal assignment diagram 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 421: Etu600 Terminal Assignment Diagram
Technical specifications 6.1 Circuit diagrams 6.1.2.2 ETU600 terminal assignment diagram 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 422 Technical specifications 6.1 Circuit diagrams See also Terminal assignment plan supplement for circuit breakers with the K60 option (with integrated undervoltage release) (Page 421) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 423: Terminal Assignment Plan Supplement For Circuit Breakers With The K60 Option (With Integrated Undervoltage Release)
Technical specifications 6.1 Circuit diagrams 6.1.2.3 Terminal assignment plan supplement for circuit breakers with the K60 option (with integrated undervoltage release) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 424: Closing Coil Cc / Cc-Com
Technical specifications 6.1 Circuit diagrams 6.1.3 Closing coil CC / CC-COM 6.1.4 Remote trip alarm reset coil RR 6.1.5 Shunt trip ST / ST-COM / ST2 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 425: Capacitor Trip Device For Shunt Trips
Technical specifications 6.1 Circuit diagrams 6.1.6 Capacitor trip device for shunt trips 6.1.7 Undervoltage release UVR / UVR-t *) EMERGENCY OFF or jumper. Shunt trip with 100% ON period can be used as an electrical closing lockout. 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 426: Second Tripping Solenoid F6 With Reclosing Lockout
Technical specifications 6.1 Circuit diagrams 6.1.8 Second tripping solenoid F6 with reclosing lockout 6.1.9 External Trip Controller ETC600 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 427: Digital Input / Output Module Iom230
Technical specifications 6.1 Circuit diagrams 6.1.10 Digital input / output module IOM230 6.1.11 Digital input/output module IOM350 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 428: Spring Charging Motor
Technical specifications 6.1 Circuit diagrams 6.1.12 Spring charging motor 6.1.13 Motor disconnect switch 6.1.14 Auxiliary switch 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 429: Ready-To-Close Signaling Switch S20
Technical specifications 6.1 Circuit diagrams 6.1.15 Ready-to-close signaling switch S20 6.1.16 Spring charge signaling switch S21 6.1.17 Trip alarm switches S24 and S25 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 430: Pss And Pss Com Position Signaling Switch Modules
Technical specifications 6.1 Circuit diagrams 6.1.18 PSS and PSS COM position signaling switch modules PSS321 position signaling switch module PSS600 position signaling switch module PSS111 COM position signaling switch module Can only be used for the connection to the first communications module (role A) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 431: Local Electric Close S10
Technical specifications 6.1 Circuit diagrams PSS400 COM position signaling switch module Can only be used for the connection to the first communications module (role A) 6.1.19 Local electric close S10 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 432: Zsi200 Zone Selective Interlocking Module
Technical specifications 6.1 Circuit diagrams 6.1.20 ZSI200 zone selective interlocking module 6.1.21 COM150 communication module 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 433: Com190 Communication Module
Technical specifications 6.1 Circuit diagrams 6.1.22 COM190 communication module 6.1.23 Breaker Status Sensor BSS200 Closing coil First auxiliary release Second auxiliary release Remote trip alarm reset coil EMERGENCY OFF or jumper 100% OP 5% OP 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 434: Dimension Drawings
Technical specifications 6.2 Dimension drawings Dimension drawings 6.2.1 3WA1 - size 1 6.2.1.1 Fixed-mounted circuit breakers Front view The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Dimension at auxiliary supply connector (push-in) 437.5 mm Dimension at auxiliary supply connector (push-in) in combination with COM/ 460.5 mm...
Page 435 Technical specifications 6.2 Dimension drawings Horizontal connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Dimension to inside surface of the closed control cabinet door 106 mm Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 436 Technical specifications 6.2 Dimension drawings Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 437 Technical specifications 6.2 Dimension drawings Front connection (double hole) The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 438 Technical specifications 6.2 Dimension drawings Vertical connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. ≤ 2000 A AC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 439 Technical specifications 6.2 Dimension drawings ≤ 2500 A AC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 440: Withdrawable Circuit Breakers
Technical specifications 6.2 Dimension drawings 6.2.1.2 Withdrawable circuit breakers Front view The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Dimension at auxiliary supply connector For N, S, M 466 mm (push-in) For E 516 mm Dimension at auxiliary supply connector For N, S, M...
Page 441 Technical specifications 6.2 Dimension drawings Horizontal connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Dimension to inside surface of the closed control cabinet door 58 mm Mounting holes ∅...
Page 442 Technical specifications 6.2 Dimension drawings Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 443 Technical specifications 6.2 Dimension drawings Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Terminal face length For N, S ≤ 1000 A AC 38 mm ≤ 2000 A AC 38 mm For M, E ≤...
Page 444 Technical specifications 6.2 Dimension drawings Front connection (double hole) The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅...
Page 445 Technical specifications 6.2 Dimension drawings Vertical connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. ≤ 2000 A AC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅...
Page 446 Technical specifications 6.2 Dimension drawings ≤ 2500 A AC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm Busbar thickness For N, S ≤ 2500 A AC 15 mm For M, E ≤...
Page 447 Technical specifications 6.2 Dimension drawings Flange connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 448: 3Wa1 - Size 2
Technical specifications 6.2 Dimension drawings 6.2.2 3WA1 - size 2 6.2.2.1 Fixed-mounted circuit breakers Front view The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Dimension at auxiliary supply connector (push-in) 437.5 mm Dimension at auxiliary supply connector (push-in) in combination with COM/ 460.5 mm IO modules...
Page 449 Technical specifications 6.2 Dimension drawings Horizontal connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Dimension to inside surface of the closed control cabinet door 106 mm Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 450 Technical specifications 6.2 Dimension drawings Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 451 Technical specifications 6.2 Dimension drawings Front connection (double hole) The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 452 Technical specifications 6.2 Dimension drawings Clearance For S, M, H, ≤ 2000 A AC/DC 541 mm D, E ≤ 2500 A AC 551 mm ≤ 3200 A AC / 551 mm 4000 A DC Terminal face length For S, M, H, ≤...
Page 453 Technical specifications 6.2 Dimension drawings Vertical connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. ≤ 3200 A AC / 4000 A DC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 454 Technical specifications 6.2 Dimension drawings ≤ 4000 A AC * The standard version of the vertical connection (up to 4000 A AC) with narrow connections (dimension 160 mm) is shown here. Broadened connections (dimension 200 mm) are available with Z-option D01. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 455: Withdrawable Circuit Breakers
Technical specifications 6.2 Dimension drawings 6.2.2.2 Withdrawable circuit breakers Front view The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Dimension at auxiliary supply connector For S, M, H, D 466 mm (push-in) For C, E 516 mm Dimension at auxiliary supply connector...
Page 456 Technical specifications 6.2 Dimension drawings 4000 A - extended crank Dimension to inside surface of the closed control cabinet door 58 mm Mounting holes ∅ 9 mm See also Safety clearances (Page 475) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 457 Technical specifications 6.2 Dimension drawings Horizontal connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Dimension to inside surface of the closed control cabinet door 58 mm Mounting holes ∅...
Page 458 Technical specifications 6.2 Dimension drawings Busbar thickness For S, M, ≤ 2000 A AC/DC 10 mm H, D, E ≤ 2500 A AC 15 mm ≤ 3200 A AC / 30 mm 4000 A DC For C ≤ 3200 A AC 30 mm Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes...
Page 459 Technical specifications 6.2 Dimension drawings Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Terminal face length For S, M, ≤ 2000 A AC/DC 35 mm H, D, E ≤ 2500 A AC 35 mm ≤...
Page 460 Technical specifications 6.2 Dimension drawings Front connection (double hole) The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅...
Page 461 Technical specifications 6.2 Dimension drawings Clearance For S, M, H, ≤ 2000 A AC/DC 493 mm D, E ≤ 2500 A AC 503 mm ≤ 3200 A AC / 503 mm 4000 A DC Terminal face length For S, M, H, ≤...
Page 462 Technical specifications 6.2 Dimension drawings Vertical connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. ≤ 3200 A AC / 4000 A DC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅...
Page 463 Technical specifications 6.2 Dimension drawings ≤ 4000 A AC * The standard version of the vertical connection (up to 4000 A AC) with narrow connections (dimension 160 mm) is shown here. Broadened connections (dimension 200 mm) are available with Z-option D01. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅...
Page 464 Technical specifications 6.2 Dimension drawings Flange connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 465: 3Wa1 - Size 3
Technical specifications 6.2 Dimension drawings 6.2.3 3WA1 - size 3 6.2.3.1 Fixed-mounted circuit breakers Front view The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Dimension at auxiliary supply connector (push-in) 439 mm Dimension at auxiliary supply connector (push-in) in combination with COM/ 462 mm IO modules...
Page 466 Technical specifications 6.2 Dimension drawings Horizontal connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Dimension to inside surface of the closed control cabinet door 106 mm Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 467 Technical specifications 6.2 Dimension drawings Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅ 9 (110) Connection dimension 35 mm Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system...
Page 468 Technical specifications 6.2 Dimension drawings Front connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 469 Technical specifications 6.2 Dimension drawings Vertical connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Fixing points for mounting the circuit breaker in the system (grid size in mm) 4 x M8 screw nut (150) and 4 x ∅...
Page 470: Withdrawable Circuit Breakers
Technical specifications 6.2 Dimension drawings 6.2.3.2 Withdrawable circuit breakers Front view The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Dimension at auxiliary supply connector (push- For H 466 mm For C, E 516 mm Dimension at auxiliary supply connector (push- For H...
Page 471 Technical specifications 6.2 Dimension drawings Horizontal connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Dimension to inside surface of the closed control cabinet door 58 mm Space for cable harness to electrical auxiliary circuit connections 20 mm...
Page 472 Technical specifications 6.2 Dimension drawings Connection dimension 38 mm Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 473 Technical specifications 6.2 Dimension drawings Front connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm Connection dimension 80 mm 3WA1 air circuit breaker...
Page 474 Technical specifications 6.2 Dimension drawings Vertical connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. ≤ 5000 A AC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅...
Page 475 Technical specifications 6.2 Dimension drawings ≤ 6300 A AC Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm Connection dimension 38 mm 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 476 Technical specifications 6.2 Dimension drawings Flange connection The broken blue contour on the side corresponds to the 4-pole version. All dimensions in [mm]. Grooves (4 mm wide, 5 mm deep) for supporting phase barriers in the system Mounting holes ∅ 9 mm 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 477: Safety Clearances
Technical specifications 6.2 Dimension drawings 6.2.4 Safety clearances 6.2.4.1 3WA - size 1 Fixed-mounted Horizontal clearance Depth clearance Vertical clearance Breaking Rated Vertical clearance (3) Horizontal Depth capacity voltage clearance (1) clearance [mm] / Max. U [mm] Closed Struts / grids / [mm] perforated sheets panels...
Page 478 Technical specifications 6.2 Dimension drawings Withdrawable circuit breakers Horizontal clearance Depth clearance Vertical clearance Breaking Rated Vertical clearance (3) Horizontal Depth capacity clearance (1) clearance voltage [mm] [mm] / Max. U [mm] Closed Struts / With arc With arc chute panels chute cover cover;...
Page 479: 3Wa - Size 2
Technical specifications 6.2 Dimension drawings 6.2.4.2 3WA - size 2 Fixed-mounted circuit breakers Horizontal clearance Depth clearance Vertical clearance Rated Vertical clearance (3) Breaking voltage [mm] Horizontal Depth capacity clearance (1) clearance (2) / Max. U Closed panels Struts / grids / [mm] [mm] perforated...
Page 480 Technical specifications 6.2 Dimension drawings Withdrawable circuit breakers Horizontal clearance Depth clearance Vertical clearance Rated Vertical clearance (3) voltage Breaking Horizontal clearance (1) Depth / Max. capacity clearance (2) Closed panels Struts / With arc With arc chute chute cover; against grids / cover closed panels...
Page 481: 3Wa - Size 3
Technical specifications 6.2 Dimension drawings 6.2.4.3 3WA - size 3 Fixed-mounted circuit breakers Horizontal clearance Depth clearance Vertical clearance Rated Vertical clearance (3) Breaking voltage [mm] Horizontal Depth capacity clearance (1) clearance (2) / Max. U Closed panels Struts / grids / [mm] [mm] perforated...
Page 482 Technical specifications 6.2 Dimension drawings Withdrawable circuit breakers Horizontal clearance Depth clearance Vertical clearance Breaking Rated Vertical clearance (3) Horizontal Depth capacity voltage clearance (1) clearance (2) [mm] / Max. U [mm] [mm] Closed Struts / With arc With arc chute panels chute cover;...
Page 483: Accessories And Door Cutouts
Technical specifications 6.2 Dimension drawings 6.2.5 Accessories and door cutouts 6.2.5.1 Capacitor storage device 6.2.5.2 COM190 communication module 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 484: External Current Sensor For The Neutral Pole (N-Ct)
Technical specifications 6.2 Dimension drawings Fixed-mounted DIN rail 6.2.5.3 External current sensor for the neutral pole (N-CT) 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 485 Technical specifications 6.2 Dimension drawings 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 486: Support Brackets
Technical specifications 6.2 Dimension drawings 6.2.5.4 Support brackets 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 487: Door Cutout/Protective Cover Ip55
Technical specifications 6.2 Dimension drawings 6.2.5.5 Door cutout/protective cover IP55 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 488: Door Sealing Frame
Technical specifications 6.2 Dimension drawings 6.2.5.6 Door sealing frame ① Control cabinet door ② Center of the operator panel of the 3WA air circuit breaker ③ Mounting surface for circuit breaker or guide frame 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 489: Interlocks And Locking Provisions
Technical specifications 6.2 Dimension drawings 6.2.5.7 Interlocks and locking provisions Locking provision to prevent unauthorized closing of the withdrawable circuit breaker ① Mounting surface of the guide frame ② Center of the operator panel of the 3WA air circuit breaker Locking provision to prevent opening of the control cabinet door 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 490 Technical specifications 6.2 Dimension drawings Locking provision to prevent unauthorized closing of the withdrawable circuit breaker 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 491: Technical Specifications Of 3Wa Circuit Breakers
Technical specifications 6.3 Technical specifications of 3WA circuit breakers Technical specifications of 3WA circuit breakers The following tables list the technical specifications of the basic 3WA breakers. You can find the technical specifications of the accessories in Chapter Accessories (Page 227). 6.3.1 Basic data for sizes 1 to 3 Fixed-mounted...
Page 492: Size 1
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.2 Size 1 6.3.2.1 Basic data 3WA11 Fixed-mounted Withdrawable Key electrical data Rated insulation voltage U 1000 1000 Rated current I 630 … 2500 630 … 2500 Weight Circuit breaker 3/4-pole 43/50 45/54 Guide frame...
Page 493: Breaking Capacity
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.2.2 Breaking capacity 3WA11 Rated short-circuit breaking capacity I ≤ 415 V 55 / 55 66 / 66 85 / 85 ≤ 500 V 55 / 55 66 / 66 85 / 85 ≤...
Page 494: Ampacity, Power Loss
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.2.3 Ampacity, power loss 3WA11 630 A 800 A 1000 A 1250 A 1600 A 2000 A 2500 A Permissible load for fixed-mounted versions (bare copper connection bars) For all connection types (except rear vertical main connections) ≤...
Page 495 Technical specifications 6.3 Technical specifications of 3WA circuit breakers 3WA11 Endurance (operating cycles) Breaking capacity N Mechanical Without maintenance 15000 15000 15000 15000 15000 15000 15000 With maintenance 30000 30000 30000 30000 30000 30000 30000 Electrical Without maintenance ≤ 690 V 10000 10000 10000...
Page 496: Minimum Cross-Sections Of Main Conductors
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.2.5 Minimum cross-sections of main conductors 3WA11 630 A 800 A 1000 A 1250 A 1600 A 2000 A 2500 A Minimum cross-sections of main conductors Copper bars, bare or painted black Horizontal connection 60 mm x 40 mm x...
Page 497: Size 2
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.3 Size 2 6.3.3.1 Basic data 3WA12 Fixed-mounted Withdrawable Fixed-mounted Withdrawable Key electrical data Rated operational voltage U ≤ 1150 at ≤ 1150 at 600 / 1000 / 600 / 1000 / 50/60 Hz 50/60 Hz 1500...
Page 498: Breaking Capacity For Ac
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.3.2 Breaking capacity for AC 3WA12 Rated short-circuit breaking capacity I ≤ 415 V 66 / 66 85 / 85 100 / 100 130 / 130 ≤ 500 V 66 / 66 85 / 85 100 / 100 130 / 130...
Page 499: Ampacity, Power Loss For Ac
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.3.3 Ampacity, power loss for AC 3WA12 2000 A 2500 A 3200 A 4000 A Permissible load for fixed-mounted versions (bare copper connection bars) For all connection types (except rear vertical main connections) ≤...
Page 500: Minimum Cross-Sections Of Main Conductors For Ac
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 3WA12 Endurance (operating cycles) Breaking capacity S, M and H Mechanical Without maintenance 10000 10000 10000 10000 With maintenance 20000 20000 20000 20000 Electrical Without maintenance ≤ 690 V 7500 7500 4000 2000 With maintenance...
Page 501: Breaking Capacity For Dc
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.3.6 Breaking capacity for DC 3WA12 1000 A 2000 A 4000 A Rated operational voltage U Breaking capacity D Breaking 3-pole 1000 1000 1000 capacity E 4-pole 1500 1500 1500 3WA12 Rated short-time withstand current I at DC ≤...
Page 502: Ampacity, Power Loss For Dc
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.3.7 Ampacity, power loss for DC 3WA12 1000 A 2000 A 4000 A Permissible load for fixed-mounted versions (copper connection bars, painted black) ≤ 55 °C 1000 2000 3640 ≤ 60 °C 1000 2000 3500...
Page 503 Technical specifications 6.3 Technical specifications of 3WA circuit breakers 3WA12 Endurance (operating cycles) Breaking capacity D Mechanical Without 10000 10000 10000 maintenance With 20000 20000 20000 maintenance Electrical Without 6000 6000 4000 maintenance ≤ 600 V With 20000 20000 20000 maintenance Breaking capacity E Mechanical...
Page 504: Minimum Cross-Sections Of Main Conductors For Dc
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.3.9 Minimum cross-sections of main conductors for DC 3WA12 1000 A 2000 A 4000 A Minimum cross-sections of main conductors Copper bars, bare or painted black 1 x 50 x 10 mm 2 x 50 x 10 mm On the infeed and outgoing sides:...
Page 505: Breaking Capacity
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.4.2 Breaking capacity 3WA13 3-pole 4-pole 3-pole 4-pole Rated short-circuit breaking capacity I ≤ 440 V 100 / 100 150 / 150 130 / 130 ≤ 500 V 100 / 100 150 / 150 130 / 130 ≤...
Page 506: Ampacity, Power Loss
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.4.3 Ampacity, power loss 3WA13 4000 A 5000 A 6300 A Permissible load for fixed-mounted versions (bare copper connection bars) For all connection types (except rear vertical main connections) ≤ 60 °C 4000 5000 ≤...
Page 507 Technical specifications 6.3 Technical specifications of 3WA circuit breakers 3WA13 Endurance (operating cycles) Breaking capacity H Mechanical Without 7500 7500 7500 maintenance With 15000 15000 15000 maintenance Electrical Without 2000 2000 2000 maintenance ≤ 690 V With 15000 15000 15000 maintenance Breaking capacity C Mechanical...
Page 508: Minimum Cross-Sections Of Main Conductors
Technical specifications 6.3 Technical specifications of 3WA circuit breakers 6.3.4.5 Minimum cross-sections of main conductors 3WA13 4000 A 5000 A 6300 A Minimum cross-sections of main conductors Copper bars, bare or painted black 4 x 100 mm x 10 mm 6 x 100 mm x 10 mm 6 x 120 mm x 10 mm 6.3.5...
Page 509: Ambient Conditions
Technical specifications 6.4 Ambient conditions Ambient conditions Note You can find information about derating in Chapter Derating in the power distribution equipment (Page 517). The 3WA circuit breakers are intended for operation in closed rooms and for stationary use. Ambient temperature The ambient temperatures specified in Chapter Technical specifications of 3WA circuit breakers (Page 489) for storage and operation of the circuit breakers must be observed.
Page 510: Installation Altitudes
Technical specifications 6.5 Installation altitudes and with the highest requirements regarding contact stability Class 3S1 Maximum drop height: 0.3 m The device remains operational. Undisturbed operation under load is not guaranteed in every case. Installation altitudes The low air density at installation altitudes above 2000 m can reduce heat dissipation. This results in increased temperatures on the switching devices.
Page 511: Approvals
• DNV (Det Norske Veritas) • RMRS (Russian Maritime Register) • PRS (Polski Rejestr Statków) • ABS (American Bureau of Shipping) • CCS (China Classification Society) You can find the certificates on the internet (https://support.industry.siemens.com/cs/ww/en/ps/3WA1/cert). 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 512: Failure Probability Acc. To B10 And B10D
Technical specifications 6.8 Failure probability acc. to B10 and B10d Failure probability acc. to B10 and B10d Endurance The listed B10 values are based on the maximum electrical operating cycles without maintenance. The following values are valid for the endurance of the 3WA circuit breakers: Size 1 AC: Size 1 630 A...
Page 513 Technical specifications 6.8 Failure probability acc. to B10 and B10d Size 2 AC: Size 2 2000 A 2500 A 3200 A 4000 A Breaking capacity S and M ≤ 690 V AC Electrical operating cycles without maintenance 7500 7500 4000 2000 B10 values 7500...
Page 514 Technical specifications 6.8 Failure probability acc. to B10 and B10d Size 3 AC: Size 3 4000 A 5000 A 6300 A Breaking capacity H ≤ 690 V AC Electrical operating cycles without 2000 2000 2000 maintenance B10 values 2000 2000 2000 B10d values 4000...
Page 515 Technical specifications 6.8 Failure probability acc. to B10 and B10d Premises The determination of B10/B10d values acc. to IEC 62061 and ISO 13849-1 is based on the following premises: • The devices comply with product standard IEC 60947-2. They are used according to this standard and operate under undisturbed operating conditions.
Page 516: Electromagnetic Compatibility
Technical specifications 6.9 Electromagnetic compatibility Electromagnetic compatibility The use of specific devices in an industrial environment can result in electromagnetic interference in the electrical installation. The 3WA circuit breaker and the accessories are tested for electromagnetic compatibility (EMC) according to IEC/EN 60947-2. The CISPR 11 (Group 1/Class B) and CISPR 32 (Class B) emission limits are observed.
Page 517: Integration In Power Distribution Equipment
Integration in power distribution equipment Compact design The 3WA air circuit breaker makes it possible to build compact power distribution equipment thanks to its compact design. For example, size 1 devices - up to 2500 A - fit into a 400 mm wide control panel. In addition to the three compact 3WA circuit breaker sizes, the 3WL10 circuit breaker is also available for rated currents up to 1250 A.
Page 518: Influencing Factors
Integration in power distribution equipment 7.2 Influencing factors Influencing factors The power distribution equipment design and the installation and ambient conditions can have a significant effect on the circuit breaker. The following installation situations take into account the most important factors affecting the circuit breaker: •...
Page 519: Derating In The Power Distribution Equipment
The 3WA11 2500 A circuit breaker is currently (status in 2022) not yet integrated in the Siemens power distribution equipment. The derating values are therefore not yet available for installation of the size 1 3WA circuit breaker 2500 A in the power distribution equipment.
Page 520 Integration in power distribution equipment 7.3 Derating in the power distribution equipment Fixed-mounted, IP31/IP41 - ventilated Control panel dimensions H x W x D [mm]: 2200 x 600 x 600 (1 circuit breaker), 2200 x 600 x 800 (2 circuit breakers or 3 circuit breakers ≤ 1000 A), 2200 x 600 x 1200 (3 circuit breakers ≤...
Page 521 Integration in power distribution equipment 7.3 Derating in the power distribution equipment Fixed-mounted, IP55 Control panel dimensions H x W x D [mm]: 2200 x 600 x 600 (1 circuit breaker), 2200 x 600 x 800 (2 circuit breakers or 3 circuit breakers ≤ 1000 A), 2200 x 600 x 1200 (3 circuit breakers ≤...
Page 522 Integration in power distribution equipment 7.3 Derating in the power distribution equipment Withdrawable, IP31/IP41 - ventilated Control panel dimensions H x W x D [mm]: 2200 x 600 x 600 (1 circuit breaker), 2200 x 600 x 800 (2 circuit breakers or 3 circuit breakers ≤ 1000 A), 2200 x 600 x 1200 (3 circuit breakers ≤...
Page 523 Integration in power distribution equipment 7.3 Derating in the power distribution equipment Withdrawable, IP55 Control panel dimensions H x W x D [mm]: 2200 x 600 x 600 (1 circuit breaker), 2200 x 600 x 800 (2 circuit breakers or 3 circuit breakers ≤ 1000 A), 2200 x 600 x 1200 (3 circuit breakers ≤...
Page 524: Derating 3Wa12
Integration in power distribution equipment 7.3 Derating in the power distribution equipment 7.3.3 Derating 3WA12 The following tables show the derating for size 2, installed in a control panel. Fixed-mounted, IP31/IP41 - ventilated Control panel dimensions H x W x D [mm]: 2200 x 800 x 800 Rated Conductor cross- Number...
Page 525 Integration in power distribution equipment 7.3 Derating in the power distribution equipment Withdrawable, IP31/IP41 - ventilated Control panel dimensions H x W x D [mm]: 2200 x 800 x 800 Rated Conductor cross- Number Max. operational current at ambient temperature current section of 3WAs...
Page 526: Derating 3Wa13
Integration in power distribution equipment 7.3 Derating in the power distribution equipment 7.3.4 Derating 3WA13 The following tables show the derating for size 3, installed in a control panel. Fixed-mounted, IP31/IP41 - ventilated Control panel dimensions H x W x D [mm]: 2200 x 1000 x 800 Rated Conductor cross- Number...
Page 527 Integration in power distribution equipment 7.3 Derating in the power distribution equipment Withdrawable, IP31/IP41 - ventilated Control panel dimensions H x W x D [mm]: 2200 x 1000 x 800 Rated Conductor cross- Number Max. operational current at ambient temperature current section of 3WAs...
Page 528: Requirement According To Iec 61439
Integration in power distribution equipment 7.4 Requirement according to IEC 61439 Requirement according to IEC 61439 7.4.1 Standard IEC 61439 Standard IEC 61439 describes the design verification for IEC equipment and controlgear assemblies and the responsibilities of the original equipment manufacturer (OEM) or builder.
Page 529: Simplified Integration
Integration in power distribution equipment 7.4 Requirement according to IEC 61439 7.4.2 Simplified integration 7.4.2.1 Structural integration in power distribution equipment A 3WA circuit breaker can be installed without any testing or structural changes if a 3WL circuit breaker has already been tested in the power distribution equipment. The technical requirements for this are defined in IEC 61439-1: •...
Page 530: Using 3Wa Circuit Breakers In 3Wl Guide Frames
Integration in power distribution equipment 7.4 Requirement according to IEC 61439 7.4.2.2 Using 3WA circuit breakers in 3WL guide frames 3WA circuit breakers are compatible with existing 3WL guide frames and are therefore easily integrated in existing power distribution equipment. Many advanced features of the 3WA circuit breaker are not available when using a 3WL guide frame.
Page 531: Retrofit: Simple Replaceability In Existing Power Distribution Equipment
Integration in power distribution equipment 7.4 Requirement according to IEC 61439 7.4.2.3 Retrofit: Simple replaceability in existing power distribution equipment Turning old into new The term retrofit refers to modification of the electrical installation of existing power distribution equipment whereby old devices are replaced with new devices at the end of their service life.
Page 532 Integration in power distribution equipment 7.4 Requirement according to IEC 61439 Two-step retrofit The retrofit combines extremely easy integration of the 3WA circuit breakers into the power distribution equipment with short downtime and high system availability. The retrofit only requires two steps: 1.
Page 533 Integration in power distribution equipment 7.4 Requirement according to IEC 61439 • CubicleBUS connection • 24 V DC connection New wiring is necessary for the following electrical accessory components (connection via secondary disconnect terminal blocks X7 and X8): • First trip alarm switch •...
Page 534 Integration in power distribution equipment 7.4 Requirement according to IEC 61439 Closing coil / shunt trip 100% OP 3WL accessory article number 3WA accessories article number Closing Operation (discontinued) 3WA9111-... power power 3WL9111-..-0AD01-0AA0 ...-0AD02 ...-0AD02-0AA0 ...-0AD03-0AA0 ...-0AD04 ...-0AD04-0AA0 110...127 110...125 ...-0AD05-0AA0 ...-0AD05...
Page 535 Integration in power distribution equipment 7.4 Requirement according to IEC 61439 Changing the rated-current coding Note The information in this section applies exclusively to the following cases: • Retrofit of a 3WL1 circuit breaker in size 1 with breaking capacity S –...
Page 536 Integration in power distribution equipment 7.4 Requirement according to IEC 61439 In order to adapt the rated-current coding, one coding pin must be removed from each of the 3WA11 circuit breakers with breaking capacity S (article number 3WA11..-3...-..) with rated current I = 630 A to 1600 A.
Page 537: Checklist For Replacing 3Wl With 3Wa Circuit Breaker According To Iec 61439-2
Integration in power distribution equipment 7.4 Requirement according to IEC 61439 CubicleBUS modules The functionality of the 3WA circuit breaker can be increased by integrated CubicleBUS modules, e.g. communication and input/output modules. If the modules are integrated in the circuit breaker, the height of the circuit breaker increases by 23 mm. Remedy: The CubicleBUS modules can also be positioned externally on a DIN rail, see Chapter...
Page 538 Integration in power distribution equipment 7.4 Requirement according to IEC 61439 Factors to be considered Answer for instead of Are the materials and the material properties of the conductors of each circuit of the switchgear and controlgear assembly to be tested the same as those of the reference design? Are the short-circuit protection devices of each circuit of the switchgear and controlgear assembly to be tested equivalent, i.e.
Page 539: Phase Barriers And Horizontal Partitions
Integration in power distribution equipment 7.5 Phase barriers and horizontal partitions Phase barriers and horizontal partitions Functional safety is assured up to a nominal voltage of 1150 V AC without phase barriers or horizontal partitions on the 3WA circuit breaker. In the event of special requirements, phase barriers may be installed by the customer to act as arcing fault barriers.
Page 540 Integration in power distribution equipment 7.5 Phase barriers and horizontal partitions Fixed-mounted: Vertical Horizontal Withdrawable: Vertical Horizontal 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 541: Insulation Test Of The Power Distribution Equipment
Integration in power distribution equipment 7.6 Insulation test of the power distribution equipment Insulation test of the power distribution equipment Note An insulation test must be performed according to IEC 60364-6 / DIN VDE 0100-600 before power distribution equipment is commissioned. In the case of circuit breakers with an internal voltage tap, the insulation test requires that the connections of the voltage tap module (VTM) be isolated before performing the test.
Page 542: Main Connection
Integration in power distribution equipment 7.7 Main connection Main connection The circuit breaker can either be fed from the upper or the lower connection terminals. Changing the infeed connection has no effect on the technical specifications of the circuit breaker. Note Installation of voltage taps when metering function is configured If a metering function is configured, the voltage taps should be installed on the infeed...
Page 543: Troubleshooting
Troubleshooting Troubleshooting for circuit breaker General troubleshooting Fault Cause Remedy Circuit breaker cannot be closed: Stored-energy spring is not charged. Charge the stored-energy spring. Circuit breaker is not ready to close. The undervoltage release is not Connect the undervoltage release to energized.
Page 544 Troubleshooting 8.1 Troubleshooting for circuit breaker Troubleshooting for fixed-mounted circuit breaker Fault Cause Remedy Circuit breaker cannot be closed The auxiliary supply connectors are Plug in the auxiliary supply electrically: unplugged. connectors. Circuit breaker is ready for operation. The control cabinet door cannot be Closing the circuit breaker locks the Open the circuit breaker.
Page 545: Troubleshooting For The Etu600 Electronic Trip Unit
The main contacts of the circuit Close the main contacts. with tripping operation. breaker are not closed. Tripping solenoid F5 is defective. Contact Siemens Service. Connection between electronic trip Bluetooth and USB-C interface Replace the ETU including the TUI600 unit and SENTRON powerconfig TUI600 is defective.
Page 546 Service update of electronic trip replace the electronic unit trip unit if necessary. Circuit breaker error, BIM error SIEMENS Service system, contact Service required, replace circuit breaker if necessary. ETU Error [protective Rotary coding switch of Turn the rotary coding...
Page 547 Troubleshooting 8.2 Troubleshooting for the ETU600 electronic trip unit Fault Indication on the Cause Remedy display INFO LED lights up yellow. ETU Error, current Current sensor energy Replace all current sensor [phase], contact converter defective sensors of the circuit Service breaker.
Page 548 Troubleshooting 8.2 Troubleshooting for the ETU600 electronic trip unit Fault Indication on the Cause Remedy display BSS200 module warning, Error in BSS200 module Replace the BSS200 error in module, contact module. Service ETU warning, uCA RTC, System clock of ETU is Replace the electronic contact Service not running.
Page 549: 8.3 Troubleshooting For Com150 / Com 190 Communications Module
Troubleshooting 8.3 Troubleshooting for COM150 / COM 190 communications module Troubleshooting for COM150 / COM 190 communications module Fault Cause Remedy Network parameters (e.g. IP Write protection is active. Set the slide switch on the addresses) cannot be changed during communications module to the commissioning.
Page 550 Troubleshooting 8.3 Troubleshooting for COM150 / COM 190 communications module Fault Cause Remedy All LEDs on the communications The communications module has Reset the communications module to module flash red. detected faults and is not ready for the factory settings. operation.
Page 551: Disposal
• Electronics, insulated cables, motors: Recycling by electrical scrap company Due to the long service life of the Siemens low-voltage circuit breakers, it may be the case that the instructions for disposal are no longer up to date at the time of decommissioning or that other disposal methods are prescribed by national regulations.
Page 552 Disposal 9.3 Disposal of waste electronic equipment 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 553: Appendix
Appendix Basic settings of the electronic trip unit on delivery ETU300 electronic trip unit The rotary coding switches of the ETU300 electronic trip unit have the following settings when delivered ex works. The tables below list the basic settings of the parameter sets for the ETU300 on delivery from the factory.
Page 554 Appendix A.1 Basic settings of the electronic trip unit on delivery ETU300 LSIG Protective function Basic setting G: Ground-fault protection GF Current setting I 0.2 x I min. 100 A, max. 1200 A Tripping time t 0.2 s 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 555 Appendix A.1 Basic settings of the electronic trip unit on delivery ETU600 electronic trip unit The rotary coding switches of the ETU600 electronic trip unit have the following settings when delivered ex works. The tables below list the basic settings of the parameter sets for the ETU600 on delivery from the factory.
Page 556 Appendix A.1 Basic settings of the electronic trip unit on delivery ETU600 LSI, ETU600 LSIG, ETU600 LSIG Hi-Z Protective function Basic setting S: Directed short-time-delayed short-circuit protection dST (optional) Direction setting Forward Tripping FW Tripping REV Current setting I 0.6 x I Current setting I 0.6 x I Tripping time t...
Page 557 Appendix A.1 Basic settings of the electronic trip unit on delivery ETU600 LSI, ETU600 LSIG, ETU600 LSIG Hi-Z Protective function Basic setting Zone-selective interlocking ZSI (requires the ZSI200 module) Received signal acts on short-time-delayed short-circuit protection ST Received signal acts on ground-fault protection GF Sends signal on pick-up of short-time-delayed short- circuit protection ST Sends signal on pick-up of ground-fault protection GF...
Page 558 Appendix A.1 Basic settings of the electronic trip unit on delivery ETU600 LSIG Hi-Z Protective function Basic setting Primary/secondary ratio 1000 G: Ground-fault protection GF Hi-Z Tripping Method of ground-fault detection Dual Hi-Z Characteristic GF curve UREF current setting I Depending on the size: •...
Page 559: Time-Current Characteristic Of The Etu300 Electronic Trip Unit
Appendix A.2 Time-current characteristic of the ETU300 electronic trip unit Time-current characteristic of the ETU300 electronic trip unit 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 560: Time-Current Characteristic Of The Etu600 Electronic Trip Unit
Appendix A.3 Time-current characteristic of the ETU600 electronic trip unit Time-current characteristic of the ETU600 electronic trip unit 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 561: Etu600 Menu Structure
Appendix A.4 ETU600 menu structure ETU600 menu structure Main menu Content Menu number Measured values Active protection parameters Change protection parameters Status and maintenance Device configuration Test System configuration Measured values The instantaneous, the minimum and the maximum measured value is provided for each measured value.
Page 562 Appendix A.4 ETU600 menu structure Active protection parameters In these menus, the parameters currently used by the ETU600 electronic trip unit for protection are displayed. Content Menu number Active protection parameters L: Long time LT L: Long time LT, neutral conductor S: Short time ST S: Directional short time dST I: Instantaneous INST...
Page 563 Appendix A.4 ETU600 menu structure Device configuration The device must be configured during commissioning. The necessary parameters are set under this menu item. Content Menu number Device configuration Grid parameters Wiring configuration Metering Local interfaces Display Digital Input ETU Digital Output ETU Module monitoring Remote access protection System time...
Page 564: Device Numbers According To Ieee Standard C37.2
Appendix A.5 Device numbers according to IEEE standard C37.2 Device numbers according to IEEE standard C37.2 The 3WA1 air circuit breaker can be assigned the following device numbers according to IEEE Standard C37.2 "Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designation (3rd October 2008)".
Page 565 Appendix A.5 Device numbers according to IEEE standard C37.2 The enhanced protective functions of the ETU600 electronic trip unit can be described by the following device numbers: Enhanced protective functions EPF Device number Function according to IEEE C37.2 Current unbalance Current unbalance protection Voltage unbalance Voltage unbalance protection...
Page 566: Zsi System Over Seven Grading Levels
Appendix A.6 ZSI system over seven grading levels ZSI system over seven grading levels 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 567: Overview Of Possible Coding Variants
Appendix A.7 Overview of possible coding variants Overview of possible coding variants 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 568 Appendix A.7 Overview of possible coding variants 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...
Page 569: Esd Guidelines
ESD guidelines Electrostatic sensitive devices (ESD) ESD components are destroyed by voltage and energy far below the limits of human perception. Voltages of this kind occur as soon as a device or an assembly is touched by a person who is not electrostatically discharged. ESD components which have been subject to such voltage are usually not recognized immediately as being defective, because the malfunction does not occur until after a longer period of operation.
Page 570 ESD guidelines B.1 Electrostatic sensitive devices (ESD) The diagrams below illustrate the required ESD protective measures for electrostatic sensitive devices. ESD seat ESD standing position ESD seat and ESD standing position Protective measures Conductive floor ESD table ESD footwear ESD smock ESD bracelet Cubicle ground connection 3WA1 air circuit breaker...
Page 571: List Of Abbreviations
List of abbreviations Abbreviation Meaning Output information 1, 2 1, 2 (Mechanical circuit breaker interlocking) AMP Incorporated, Harrisburg ANSI American National Standards Institute Auxiliary switch American Wire Gauge Size Size Breaker identification module Breaker Status Sensor Closing coil Communications module CONNECT Connected position Canadian Standards Association...
Page 572 List of abbreviations Abbreviation Meaning Ground fault extended Current dependency of the delay time according to a formula whereby the product of the time and the square of the current is constant Current dependency of the delay time t according to a formula whereby the product of the time and the square of the current is constant Current dependency of the delay time t according to a formula...
Page 573 List of abbreviations Abbreviation Meaning Pre-alarm PIDG AMP crimp eyelets Position signaling switch (module) PZ 3 … 6 Crimping tools from Weidmüller in Detmold Restricted Earth Fault Remote Reset (remote trip alarm reset coil) Remote Switching Protection NO contact Circuit breakers (mechanical circuit breaker interlocking) 1, 2, 3 1, 2, 3...
Page 574 List of abbreviations Abbreviation Meaning SIGUT Siemens strain-relief clamp Shunt trip Shunt trip 2 (2nd shunt trip) TEST Test position Delay time of ground-fault tripping Delay time of overload trip (defined as 6 x I TRIP GF Trip reason was ground fault...
Page 575 3WA1 air circuit breaker Equipment Manual, 02/2023, 92310000002-06...

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