7644-01-476-1631 DIGITAL GEOSPATIAL PRODUCTS Index 7644-01-476-1633 DIGITAL GEOSPATIAL PRODUCTS

National Stock Number:
5925-01-476-1632

Federal Supply Class:
5925

National Item Identification Number:
014761632

Description:
CIRCUIT BREAKER

Detail:
A DEVICE WITH MEANS OTHER THAN FUSES FOR AUTOMATICALLY OPENING THE CIRCUIT IN WHICH IT IS INSTALLED WHEN THE CURRENT VARIES FROM THE PREDETERMINED VALUE FOR WHICH THE DEVICE IS SET. MAY INCLUDE PROVISIONS FOR MANUAL OPERATION. AT LEAST ONE SET OF CONTACTS MUST BE IN SERIES WITH THE ACTUATING ELEMENT(S). A COMBINATION OF SEMICONDUCTOR AND PASSIVE DEVICES MAY BE USED IN LIEU OF CONTACTS. FOR AUTOMATICALLY OPERATED ITEMS IN WHICH THE ACTUATING (TRIPPING) ELEMENT AND CONTACTS ARE NOT IN SERIES, SEE RELAY (AS MODIFIED). FOR ITEMS WHICH ARE OPERATED BOTH MANUALLY AND AUTOMATICALLY BUT THE ACTUATING ELEMENTS AND CONTACT ARE NOT IN SERIES, SEE RELAY-SWITCH. EXCLUDES CIRCUIT BREAKER BOX AND MAGNETO "BREAKER" ASSEMBLIES. SEE ALSO SWITCH (AS MODIFIED); AND CONTROLLER.


Manufacturer Information:
QBHW3090H89946EATON CORPORATION


Techincal Specification:
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE480.0 AMPERES AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY3 THREADED HOLE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS277.0 AC ALL LOCATIONS
POLE QUANTITY3
RESET METHODMANUAL
TERMINAL TYPE AND QUANTITY3 QUICK DISCONNECT, MALE
TRIP RELEASE CHARACTERISTICINSTANTANEOUS ALL LOCATIONS
TRIP RELEASE METHODMAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT277.0 ALL LOCATIONS


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