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Instructional Leaet IB2C12063H03
Effective March 2012
Instructions for Installation, Operation and
Maintenance of Magnum SB Insulated Case
Low Voltage Power Circuit Breakers
EATON CORPORATION www.eaton.com
1. ON THREE POLE BREAKERS ONLY (NOT EIGHT PHYSICAL POLES), HAVING GROUND FAULT FUNCTIONALITY, A JUMPER
INSTALLED FROM B-6 TO B-7 WILL ENABLE SOURCE GROUND FAULT SENSING AND DISABLE RESIDUAL GROUND FAULT SENS-
ING. INPUTS B-4 AND B-5 WILL BE REASSIGNED FOR SOURCE GROUND SENSOR INPUTS.
2. ALL AUX. SWITCH CONTACTS SHOWN WITH BREAKER IN OPEN POSITION AND WITH TRIP UNIT IN “NON-TRIPPED” STATE
(OTS SWITCHES) AND SPRING NOT CHARGED.
3. THE SPRING RELEASE ACCESSORY CONSISTS OF A “SR” COIL AND A P.C. BOARD. THE PRINTED CIRCUIT BOARD PROVIDES
A .20 SECOND PULSE FOR THE CLOSING OPERATION. VOLTAGE MUST BE REMOVED AND THEN REAPPLIED FOR SUBSEQUENT
OPERATION. AN OPTIONAL LATCH CHECK SWITCH (LCS) ACCESSORY MAY BE CONNECTED TO THE SPRING RELEASE. THE
(CLOSED) LCS DELAYS THE SPRING RELEASE PULSE UNTIL THE BREAKER MECHANISM IS READY TO CLOSE (CHARGED AND
RESET). (THIS WILL INSURE THAT THE LATCH WILL ALWAYS BE IN THE PROPER STATE BEFORE THE SPRING RELEASE PULSE IS
INITIATED). IF VOLTAGE IS MAINTAINED TO THE SPRING RELEASE, THE CLOSING PULSE WILL OCCUR WHEN THE MECHANISM
IS CHARGED AND RESET (LCS OPEN). VOLTAGE MUST BE REMOVED AND REAPPLIED TO THE SPRING RELEASE FOR SUBSE-
QUENT OPERATION.
4. TO PROVIDE SELECTED TIME DELAYS FOR SHORT TIME AND/OR GROUND TIME FUNCTIONS FOR TESTING OR NON-ZONE
INTERLOCKING APPLICATIONS, A JUMPER FROM B-8 TO B-9 IS REQUIRED.
5. 3 WIRE CRIMP IF HIGH INST TRIP MODULE IS SUPPLIED.
6. NORMALLY OPENED CONTACT PROGRAMMED AS RELAY A. VIA DIGITRIP FRONT PANEL. (ALARM CONTACT). THIS CAN ALSO
BE ASSIGNED TO INDICATE MAINTENANCE MODE FEATURE IN USE.
7. NORMALLY CLOSED CONTACT PROGRAMMED AS RELAY B. VIA DIGITRIP FRONT PANEL. (BLOCK CLOSE CONTACT)
8. NORMALLY OPEN CONTACT PROGRAMMED AS RELAY C. VIA DIGITRIP FRONT PANEL. (LATCHING CONTACT)
9. ON 4-POLE BREAKERS (ACTUALLY 8 PHYSICAL POLES), THE NEUTRAL CURRENT SENSORS ARE LOCATED WITHIN THE BREAKER
FRAME. THE SECONDARY CONTACTS B-4, B-5, ARE NOT WIRED OUT.
10. MOTOR OPERATOR SWITCH SHOWN WITH BREAKER CLOSING SPRING DISCHARGED.
11. FOUR POINT SOCKET USED HERE.
12. SECOND SHUNT TRIP MAY BE INSTALLED (USING A-7, A-8 CONTACTS) IN PLACE OF UVR. THIRD AUX SWITCH NOT AVAILABLE
WITH SECOND SHUNT TRIP. SHUNT TRIP MAY BE STANDARD OR CONTINUOUS DUTY TYPE. SECONDARY WIRING IS IDENTICAL.
13. ONLY ONE LATCH CHECK SWITCH MAY BE INSTALLED. USE OF CUSTOMER ACCESSIBLE LATCH CHECK SWITCH (B-29, B-30) IN
SERIES WITH SPRING RELEASE DEFEATS ANTI-PUMP FUNCTION AND IS NOT RECOMMENDED. SEE NOTE 3 FOR SPRING RELEASE
LATCH CHECK SWITCH.
14. THE OTS (OVERCURRENT TRIP SWITCHES) WILL OPERATE DIRECTLY FROM THE DIGITRIP DRIVING THE TA (TRIP ACTUATOR) TO
TRIP THE CIRCUIT BREAKER. THE OTS REQUIRES A MANUAL LOCAL RESET VIA RED BUTTON DEPRESSION. THE AUTO RESET OTS
DOES NOT REQUIRE MANUAL RESET, AND IF SO CONFIGURED, OCCUPIES THE MAKE-COM SECONDARY TERMINALS A-4 AND A-5.
15. FOR CIRCUIT BREAKERS BUILT AFTER JULY 2006 AND DIGITRIP 1150 UNITS OF FIRMWARE REV 20decimal OR GREATER, THE
MAINTENANCE MODE FEATURE (ARMS) IS SUPPLIED. THE REVERSE POWER DESELECTIONS FRONT PANEL PROGRAMMABLE ONLY.
16. THE HIGH INSTANTANEOUS MODULE IS SUPPLIED ON MDSX/SPSE BREAKERS AND IS OPTIONAL ON OTHERS. THE MODULE
PROVIDES 50KA HIGH INSTANTANEOUS TRIP.
Figure 59. Connection Diagram for SBSE Double-wide Frame with Digitrip 1150 with AABBCC Configuration
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