5925-00-501-6818, CIRCUIT BREAKER

5905-00-501-6821 RESISTOR,VOLTAGE SENSITIVE

National Stock Number:
5925-00-501-6818

Federal Supply Class:
5925

National Item Identification Number:
005016818

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:

1JH453	79500	WESTINGHOUSE ELECTRIC CORP
1JH453X29B8871	11660	WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
29B8871X1JH453	11660	WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
S031Y6256	11660	WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
MILC17587	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

AUXILIARY SWITCH FUNCTION AND QUANTITY	1 CONTROL
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
MANUAL ACTUATOR TYPE AND QUANTITY	1 ROTARY
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	900.0 AMPERES DC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	100000.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	6 UNTHREADED HOLE(S)
NONDEFINITIVE SPEC/STD DATA	ACB TYPE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	355.0 DC ALL LOCATIONS
POLE QUANTITY	2
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	AS DIFFERENTIATED BY POLE QUANTITY,MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE,OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS
RESET METHOD	AUTOMATIC
TERMINAL TYPE AND QUANTITY	4 BUS BAR
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS FIRST LOCATION
TRIP RELEASE CHARACTERISTIC	TIME DELAY SECOND LOCATION
TRIP RELEASE METHOD	MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	225.0 ALL LOCATIONS
UNTHREADED MOUNTING HOLE DIAMETER	0.562 INCHES NOMINAL

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