5925-01-470-7051, CIRCUIT BREAKER

5895-01-470-7050 COVER,ELECTRONIC COMMUNICATION E

National Stock Number:
5925-01-470-7051

Federal Supply Class:
5925

National Item Identification Number:
014707051

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:

M55629/1-284	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-PRF-55629/1	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-PRF-55629/1D	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

POLE QUANTITY	1
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	1.0 AMPERES AC SINGLE LOCATION
CIRCUIT PROTECTION TYPE	OVERCURRENT SINGLE LOCATION
TERMINAL TYPE AND QUANTITY	2 THREADED STUD
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	240.0 AC SINGLE LOCATION
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS AND
	TIME DELAY SINGLE LOCATION
RESET METHOD	MANUAL
BODY STYLE	SINGLE POLE TYPE
MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED BUSHING
CASE MATERIAL	PLASTIC OR
	MICA OR
	PORCELAIN
TRIP RELEASE METHOD	MAGNETIC SINGLE LOCATION
FREQUENCY IN HERTZ	60.0 SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	1000.0 AC SINGLE LOCATION
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP SINGLE LOCATION
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	0.160 MINIMUM AT 200 PCT AND
	1.600 MAXIMUM AT 200 PCT AND
	0.040 MINIMUM AT 400 PCT AND
	0.300 MAXIMUM AT 400 PCT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	1000.0 SINGLE LOCATION
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
BODY LENGTH	2.530 INCHES MAXIMUM
BODY WIDTH	0.730 INCHES MINIMUM AND
	0.775 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	1.660 INCHES MINIMUM AND
	1.960 INCHES MAXIMUM
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	2.046 INCHES MINIMUM AND
	2.078 INCHES MAXIMUM
BOSS HEIGHT	0.109 INCHES MINIMUM AND
	0.171 INCHES MAXIMUM
MOUNTING SURFACE TO TERMINAL END DISTANCE	2.553 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD SIZE	0.138 INCHES
THREAD TOLERANCE CLASS	2B EXTERNAL
THREAD QUANTITY PER INCH	32
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-PRF-55629/1
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	M55629/1-284

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