5925-00-066-6887, CIRCUIT BREAKER

National Stock Number:
5925-00-066-6887

Federal Supply Class:
5925

National Item Identification Number:
000666887

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:

48A8101G4	79500	WESTINGHOUSE ELECTRIC CORP
48A8101G4	89946	EATON CORPORATION

Techincal Specification:

POLE QUANTITY	2
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	100.0 AMPERES AC AND
	10000.0 AMPERES DC ALL LOCATIONS
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
TERMINAL TYPE AND QUANTITY	4 COMPRESSION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	600.0 AC AND
	250.0 DC ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS AND
	TIME DELAY ALL LOCATIONS
RESET METHOD	MANUAL
MOUNTING FACILITY TYPE AND QUANTITY	4 UNTHREADED HOLE
CASE MATERIAL	PLASTIC
TRIP RELEASE METHOD	THERMAL-MAGNETIC ALL LOCATIONS
FREQUENCY IN HERTZ	60.0 ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	15000.0 AC AND
	15000.0 DC ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING	25.0 DEG CELSIUS NOMINAL ALL LOCATIONS
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	300.000 MINIMUM AT 150 PCT AND
	1400.000 MAXIMUM AT 150 PCT AND
	100.000 MINIMUM AT 200 PCT AND
	400.000 MAXIMUM AT 200 PCT AND
	30.000 MINIMUM AT 300 PCT AND
	100.000 MAXIMUM AT 300 PCT AND
	16.000 MINIMUM AT 400 PCT AND
	55.000 MAXIMUM AT 400 PCT AND
	10.000 MINIMUM AT 500 PCT AND
	35.000 MAXIMUM AT 500 PCT AND
	0.040 MINIMUM AT 1000 PCT AND
	10.000 MAXIMUM AT 1000 PCT ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	117.0 ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
OVERALL LENGTH	10.180 INCHES NOMINAL
OVERALL HEIGHT	8.250 INCHES NOMINAL
OVERALL WIDTH	5.500 INCHES NOMINAL
NOMINAL THREAD SIZE	0.312 INCHES
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
ACTUATOR FUNCTION	TRIP W/SEPARATE RESET
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	DUSTPROOF
FEATURES PROVIDED	ADJUSTABLE TRIP RELEASE
ARC QUENCHING METHOD	DEION
PRECIOUS MATERIAL	SILVER
SPECIAL FEATURES	MTG HOLES ON 7.250 IN. BY 2.750 IN. MTG CENTERS

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