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CHAPTER 1: INTRODUCTION
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Power Supply
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
AUXILIARY OUTPUT RELAYS
(Relays #3, #4 and the Critical Failure Relay from Slot F, and Relays #11, #12 and #16 from
Slot G)
Type:..........................................................................FORM-C
Configuration:.......................................................electromechanical
Contact material: ................................................silver-alloy
Operate time:........................................................<8 ms
Continuous current: ...........................................10 A
Make and carry for 0.2s:..................................30 A per ANSI C37.90
Break (DC inductive, L/R=40 ms):.................24 V / 1 A
Break (DC resistive):............................................24 V / 10 A
Break (AC inductive): ..........................................720 VA @ 250 VAC Pilot duty A300
Break (AC resistive): ............................................277 VAC / 10 A
Operation Mode:..................................................Self-Reset, Latched, Pulsed, Non-Failsafe, Failsafe
Breaking Capacity: .............................................For Form-C relays the following ratings are applied to meet
For 2 IO_A module configuration the following ratings are applied to meet UL508
requirements: 1 second "on"/ 10 seconds "off" per output relay at max rating.
PULSED OUTPUTS
Mode:........................................................................3-phase positive and negative active energy measurement,
Principle:..................................................................Pulsed output is energized for one second and then de-
POWER SUPPLY
Nominal DC Voltage: .........................................125 to 250 V
Minimum DC Voltage: .......................................88 V
Maximum DC Voltage:......................................300 V
Nominal AC Voltage:..........................................100 to 240 V at 50/60 Hz
Minimum AC Voltage:........................................88 V at 50 to 60 Hz
Maximum AC Voltage: ......................................265 V at 50 to 60 Hz
Voltage loss ride through:...............................20 ms duration
POWER SUPPLY (FOR "L" DC ONLY OPTION)
Nominal DC Voltage: .........................................24 V to 48 V
Minimum DC Voltage: .......................................20 V
Maximum DC Voltage:......................................60 V
POWER CONSUMPTION
Typical: .....................................................................20 W / 40 VA
Maximum:...............................................................34 W / 70 VA
48 V / 0.5 A
125 V / 0.3 A
250 V / 0.2 A
48 V / 6 A
125 V / 0.5 A
250 V / 0.3 A
UL508 requirements: 1 second "ON"/10 seconds "OFF" per
output relay at maximum rating
3-phase positive and negative reactive energy
measurements
energized for one second after the programed energy
increment.
SPECIFICATIONS
1–27
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