5925-00-727-7734, CIRCUIT BREAKER

5910-00-727-7727 CAPACITOR,FIXED,PLASTIC DIELECTR

5905-00-727-7735 RESISTOR,FIXED,WIRE WOUND,INDUCT

National Stock Number:
5925-00-727-7734

Federal Supply Class:
5925

National Item Identification Number:
007277734

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:

2638051-50	10001	NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
T505-004-250	36090	LOCKHEED MARTIN LIBRASCOPE CORP

Techincal Specification:

ACTUATOR FUNCTION	TRIP-RESET
ACTUATOR POSITION DESIGNATION	AT EACH POLE
AUXILIARY SWITCH FUNCTION AND QUANTITY	1 ALARM
BODY LENGTH	1.562 INCHES MAXIMUM
BODY STYLE	MULTIPOLE-SINGLE ACTUATOR TYPE
BODY WIDTH	1.281 INCHES MAXIMUM
BUSHING LENGTH	0.280 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	EXPLOSION RESISTANT AND FUNGUS RESISTANT AND HERMETICALLY SEALED
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	7.5 AMPERES DC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	500.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	1 THREADED BUSHING W/PANEL SEAL
MOUNTING SURFACE TO TERMINAL END DISTANCE	1.828 INCHES MAXIMUM
NOMINAL THREAD SIZE	0.375 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	50.0 DC ALL LOCATIONS
POLE QUANTITY	2
RESET METHOD	MANUAL
SWITCH CONTACT ARRANGEMENT	SINGLE POLE, DOUBLE THROW
SWITCH CURRENT RATING AND TYPE IN AMPS	0.5 DC
SWITCH LOCATION AND POSITION DESIGNATION	INTERNAL AT EACH POLE
SWITCH TERMINAL TYPE	WIRE HOOK
SWITCH VOLTAGE RATING AND TYPE IN VOLTS	50.0 DC
TERMINAL TYPE AND QUANTITY	4 WIRE HOOK
THREAD SERIES DESIGNATOR	UNEF
THREAD QUANTITY PER INCH	32
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	0.055 MINIMUM AT 200 PCT AND 0.950 MAXIMUM AT 200 PCT ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	TIME DELAY ALL LOCATIONS
TRIP RELEASE METHOD	MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	125.0 ALL LOCATIONS
ULTIMATE TRIP TIME PER POLE IN SECONDS	0.200 MINIMUM AND 7.000 MAXIMUM ALL LOCATIONS

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