Eaton SBN-508 Instructions For Installation, Operation And Maintenance

Also see for Magnum SB Series: Technical product guide

Contents

38Instructions for Installation, OperatiMaintenance of Magnum SB InsulatedLow V oltage Power Circuit BreakeEATON CORPORATION www.eaton.comInstructional Leaflet IB2C12063H03Effective March 20121. ON THREE POLE BREAKERS ONLY (NOT EIGHT PHYSICAL POLES), HAVING GROUND FAULT FUNCTIONALITY, A JUMPERINSTALLED 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 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 PROVIDESA .20 SECOND PULSE FOR THE CLOSING OPERATION. VOLTAGE MUST BE REMOVED AND THEN REAPPLIED FOR SUBSEQUENTOPERATION. AN OPTIONAL SR-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 ANDRESET). (THIS WILL INSURE THAT THE LATCH WILL ALWAYS BE IN THE PROPER STATE BEFORE THE SPRING RELEASE PULSE ISINITIATED). IF VOLTAGE IS MAINTAINED TO THE SPRING RELEASE, THE CLOSING PULSE WILL OCCUR WHEN THE MECHANISMIS 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-ZONEINTERLOCKING 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 ALSOBE 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 BREAKERFRAME. 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 AVAILABLEWITH 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) INSERIES WITH SPRING RELEASE DEFEATS ANTI-PUMP FUNCTION AND IS NOT RECOMMENDED. SEE NOTE 3 FOR SPRING RELEASELATCH CHECK SWITCH.14. THE OTS (OVERCURRENT TRIP SWITCHES) WILL OPERATE DIRECTLY FROM THE DIGITRIP DRIVING THE TA (TRIP ACTUATOR) TOTRIP THE CIRCUIT BREAKER. THE STANDARD OTS REQUIRES A MANUAL LOCAL RESET VIA RED BUTTON DEPRESSION. THE AUTORESET OTS DOES NOT REQUIRE MANUAL RESET AND IF SO CONFIGURED, OCCUPIES THE MAKE-COM SECONDARY TERMINALSA-4 AND A-5.15. FOR CIRCUIT BREAKERS BUILT AFTER JULY 2006 AND DIGITRIP 1150 UNITS OF FIRMWARE REV 20decimal OR GREATER, THEMAINTENANCE MODE FEATURE (ARMS) IS SUPPLIED. THE REVERSE POWER DESELECTION IS FRONT PANEL PROGRAMMABLEONLY.16. THE HIGH INSTANTANEOUS MODULE IS SUPPLIED ON MDSX/SPSE BREAKERS AND IS OPTIONAL ON OTHERS. THE MODULEPROVIDES 50KA HIGH INSTANTANEOUS TRIP.Figure 50. Connection Diagram for Double-wide Frame (except SBSE) with Digitrip 1150 with ABCABC Configuration