5925-00-899-4053, CIRCUIT BREAKER

National Stock Number:
5925-00-899-4053

Federal Supply Class:
5925

National Item Identification Number:
008994053

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:

10022975-104	94580	HONEYWELL INTERNATIONAL INC.
10605307-13	18876	U S ARMY AVIATION AND MISSILE COMMAND
9157091	18876	U S ARMY AVIATION AND MISSILE COMMAND
SM3-5-28VDC58	74193	EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV
918205-6	82577	RAYTHEON COMPANY
691C902P1	89954	BAE SYSTEMS CONTROLS INC.
SM3-5-50VDC2	74193	EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV
SM3-5-88	74193	EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV
SM3-5AMP28VDCTDC58	74193	EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV
SM3-5AMP50VDCCURVE58	74193	EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV

Techincal Specification:

ACTUATOR FUNCTION	RESET
ARC QUENCHING METHOD	MAGNETIC BLOWOUT
CIRCUIT PROTECTION TYPE	OVERCURRENT SINGLE LOCATION
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	DUSTPROOF AND EXPLOSION PROOF
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
OVERALL LENGTH	2.600 INCHES NOMINAL
OVERALL WIDTH	1.500 INCHES NOMINAL
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	5.0 AMPERES DC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	500.0 DC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY	1 THREADED BUSHING
NOMINAL THREAD SIZE	0.375 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	50.0 DC SINGLE LOCATION
OVERALL HEIGHT	0.625 INCHES NOMINAL
POLE QUANTITY	1
PRECIOUS MATERIAL	SILVER
RESET METHOD	MANUAL
TERMINAL TYPE AND QUANTITY	2 TAB, SOLDER LUG
THREAD SERIES DESIGNATOR	UNEF
THREAD QUANTITY PER INCH	32
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	0.300 NOMINAL AT 125 PCT AND 0.060 NOMINAL AT 200 PCT SINGLE LOCATION
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS AND TIME DELAY SINGLE LOCATION
TRIP RELEASE METHOD	MAGNETIC SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	125.0 SINGLE LOCATION

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