5925-00-174-0424, CIRCUIT BREAKER

National Stock Number:
5925-00-174-0424

Federal Supply Class:
5925

National Item Identification Number:
001740424

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:

56J972	79500	WESTINGHOUSE ELECTRIC CORP
56J972AND19Y4160	11660	WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT

Techincal Specification:

POLE QUANTITY	2
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	100.0 AMPERES DC ALL LOCATIONS
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
TERMINAL TYPE AND QUANTITY	4 BUS BAR
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	1000.0 DC ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	TIME DELAY ALL LOCATIONS
RESET METHOD	AUTOMATIC
BODY STYLE	RECTANGULAR DIMENSIONAL ENVELOPE
MOUNTING FACILITY TYPE AND QUANTITY	6 UNTHREADED HOLE
TRIP RELEASE METHOD	MAGNETIC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	20000.0 DC ALL LOCATIONS
INTERNAL TRIP RELEASE CONFIGURATION	SHUNT TRIP FIRST LOCATION
	SERIES/RELAY TRIP SECOND LOCATION
	RELAY TRIP THIRD LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	160.0 ALL LOCATIONS
OVERALL LENGTH	23.375 INCHES NOMINAL
OVERALL HEIGHT	14.375 INCHES NOMINAL
OVERALL WIDTH	14.000 INCHES NOMINAL
UNTHREADED MOUNTING HOLE DIAMETER	0.562 INCHES NOMINAL
MANUAL ACTUATOR TYPE AND QUANTITY	1 ROTARY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	AS DIFFERENTIATED BY MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE
THE MANUFACTURERS DATA
MANUFACTURERS CODE	79500
DESIGN CONTROL REFERENCE	56J972

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