Related Manuals for ABB TMAX XT XT5 ELECTRONIC
Summary of Contents for ABB TMAX XT XT5 ELECTRONIC
- Page 1 — INSTRUCTION HANDBOOK 1SDH002298A1001 - ECN000285442 TMAX XT XT5 ELECTRONIC Disassembly instructions...
-
Page 3: Safety Notes
Disassembly instruction tmaX Xt Xt5 electronic 1. SCOPE Scope of this document is to illustrate the step-by-step disassembly process of ABB SACE Tmax XT XT5 moulded case circuit breaker equipped with an electronic trip unit (type Ekip DIP LS/I). Document is focused on Tmax XT XT5 3p IEC version, anyway it allows to cover other versions of Tmax XT XT5 circuit breaker equipped with an electronic trip unit with just few slight differences to be taken into account. -
Page 4: Disassembly Process
INSTRUCTION HANDBOOK 5. SEPARATE TREATMENT Table below lists parts requiring a separate treatment adding information about part location inside circuit breakers and related quantity. Description Position inside circuit breaker Quantity Cap kits In correspondence of circuit breaker connection terminals UVR rod Mounted on the breaking part cover Test lever Mounted on the breaking part cover... - Page 5 Disassembly instruction tmaX Xt Xt5 electronic 6.1 PHASE 1 – CAP KITS Tools Actions to be performed Allen key Insert the flat screwdriver as shown in Picture By means of the allen key remove the screws 2 and unhook the cap kits from circuit breaker connected with the cap kits.
- Page 6 INSTRUCTION HANDBOOK 6.2 PHASE 2 – FRONTAL Actions to be performed Tools Cross screwdriver Manually close the circuit breaker and by Insert the flat screwdriver as shown in the means of the cross screwdriver push the test picture and slightly push the screwdriver as button in order to bring the circuit breaker in shown by the arrow in order to raise up and to trip position.
- Page 7 Disassembly instruction tmaX Xt Xt5 electronic Manually remove the front cover. Disassembled parts • 1 aesthetic front cover (Plastic) • 4 screws (Metal) • 1 front cover (Plastic)
- Page 8 INSTRUCTION HANDBOOK 6.3 PHASE 3 – TRIP UNIT Actions to be performed Tools Allen key By means of the torx key unscrew the 3 screws By means of the allen key unscrew the 4 screws fixing the trip unit to the breaking part. located in the bottom part of the circuit breaker fixing the trip unit to the breaking part.
- Page 9 Disassembly instruction tmaX Xt Xt5 electronic 6.4 PHASE 4 – BREAKING PART COVER Actions to be performed Tools Cutter By means of the cutter start removing the By means of the cross screwdriver unscrew label on the left side of the breaking part and the 8 screws fixing the breaking part cover to manually complete the operation.
- Page 10 INSTRUCTION HANDBOOK By means of the pliers remove the UVR rod Manually separate the spring from the UVR mounted on the breaking part cover. rod. By means of the flat screwdriver turn the test Manually remove the trip test button and lever until it comes out from its housing. separate the spring from test lever.
- Page 11 Disassembly instruction tmaX Xt Xt5 electronic Manually remove the lever SX assembly and the Manually separate the S52 lever and the spring RC group release located on the left part of the from the lever SX assembly. breaking part. By means of the flat screwdriver push the pin Manually separate the left open/close lever, the as indicated by the arrow and after manually spring and the left hand lever adapter.
- Page 12 INSTRUCTION HANDBOOK By means of the pliers remove the benzing Manually separate the pin, RC lever release and mounted on the RC group release. the RC lever support. Manually remove the lever DX assembly located Manually separate the MOE rod indicator and on the right part of the breaking part. the related spring from the lever DX assembly.
- Page 13 Disassembly instruction tmaX Xt Xt5 electronic By means of the flat screwdriver push the pin Manually separate the right hand open/close as indicated by the arrow and after manually AUX adapter, the open/close AUX lever and the remove the pin.
- Page 14 INSTRUCTION HANDBOOK 6.5 PHASE 5 – POLES SEPARATION AND OPERATING MECHANISM Actions to be performed Tools Cross screwdriver By means of the torx key unscrew the 5 screws Manually remove the 5 screws and the related keeping connected the poles of the breaking inserts.
- Page 15 Disassembly instruction tmaX Xt Xt5 electronic Manually remove the operating mechanism By means of the cross screwdriver unscrew the from the central pole. screw fixing the toggle extension to the base of the toggle. Manually remove the toggle extension and the toggle protection.
- Page 16 INSTRUCTION HANDBOOK 6.6 PHASE 6 – POLES Actions to be performed Tools Pliers Manually remove the insert and the I3 lever. By gravity let the pin fall down from the pole. Flat screwdriver Cross screwdriver Torx key No. 20 By means of the pliers remove the silicone By means of the pliers remove the nut located sheath located in the bottom part of the pole.
- Page 17 Disassembly instruction tmaX Xt Xt5 electronic By means of the flat screwdriver unhook By means of the cross screwdriver unscrew the the rear protection from the pole and after 2 screws located in the rear part of the pole. manually complete the removal operation.
- Page 18 INSTRUCTION HANDBOOK Manually remove the arching chambers. Manually remove upper and lower fixed contacts. By means of the flat screwdriver remove the Manually remove the moving contact assembly. arc quenching from the fixed contacts. By means of the flat screwdriver push the 2 Manually remove the 2 pins.
- Page 19 Disassembly instruction tmaX Xt Xt5 electronic Manually separate the moving contact from its shaft. Disassembly operations illustrated at pictures from 37 to 53 must be performed on the other 2 poles. Disassembled parts • 3 inserts (Metal) • 2 nuts (Metal) • 3 I3 levers (Plastic) • 3 pins (Plastic) • 3 silicone sheath (Silicone)
- Page 20 INSTRUCTION HANDBOOK 6.7 PHASE 7 – TRIP UNIT FRONTAL Actions to be performed Tools Cutter Manually disassemble the transparent By means of the cutter start removing the label protection from the trip unit frontal. located on the trip unit frontal and manually complete the operation.
- Page 21 Disassembly instruction tmaX Xt Xt5 electronic Manually remove the backplane. By means of the cross screwdriver unscrew the 2 screws fixing the trip unit frontal to the trip unit main structure. Manually remove the trip unit frontal. Disassembled parts • 1 trip unit transparent protection (Plastic) • 2 labels (Adhesive paper)
- Page 22 INSTRUCTION HANDBOOK 6.8 PHASE 8 – TRIP UNIT MAIN STRUCTURE Actions to be performed Tools Pliers Manually remove the spring and the RC lever Manually remove the printed circuit board from connected with the spring itself. its housing. Torx key No. 8 No. 25 Flat screwdriver Manually disconnect the trip coil connector Manually remove the trip coil.
- Page 23 Disassembly instruction tmaX Xt Xt5 electronic By means of the pliers remove the spacer By means of the torx key (size 8) unscrew the 4 located in the housing of the trip coil. screws fixing the trip unit cover to the trip unit main structure.
- Page 24 INSTRUCTION HANDBOOK By means of the flat screwdriver unhook the 3 Manually remove the sensors assembly. flaps keeping joined the case and the cover of the sensors assembly. By means of the flat screwdriver unhook the Manually separate the case and the cover of 3 flaps located on the other side of sensors the sensors assembly.
- Page 25 Disassembly instruction tmaX Xt Xt5 electronic Manually remove bottom terminals from trip unit case. Disassembled parts • 1 spring (Metal) • 1 RC lever (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 trip unit printed circuit board (Plastic, Metal and Electronic components) SEPARATE TREATMENT (Printed circuit board) • 1 trip coil (Plastic, Metal and Magnets) SEPARATE TREATMENT (Megnets) • 1 spacer (Rubber) • 4 + 6 screws (Metal) • 1 connector protection (plastic)
- Page 26 INSTRUCTION HANDBOOK 7. ENERGY CONSUMPTION FOR CIRCUIT BREAKERS DISASSEMBLY Since all disassembly operations illustrated in this document are manual, the CO equivalent emissions can be considered null/negligible.
- Page 27 Disassembly instruction tmaX Xt Xt5 electronic...
- Page 28 — ABB SACE A division of ABB S.p.A. L.V. Breakers Via Pescaria 5, 24123 Bergamo - Italy Phone: +39 035 395.111 Fax: +39 035 395.306-433 abb.it/lowvoltage © Copyright 2022 ABB. All rights reserved. Specifications subject to change without notice.