5925-01-493-4961, CIRCUIT BREAKER

National Stock Number:
5925-01-493-4961

Federal Supply Class:
5925

National Item Identification Number:
014934961

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:

M39019/04-309S	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-PRF-39019/4	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

BODY LENGTH	1.562 INCHES MAXIMUM
BODY STYLE	MULTIPOLE-MULTIPLE ACTUATOR TYPE
BODY WIDTH	1.281 INCHES MAXIMUM
BUSHING LENGTH	0.332 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	0.906 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	0.625 INCHES NOMINAL
FREQUENCY IN HERTZ	60.0 OR 400.0 ALL LOCATIONS
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
PART NAME ASSIGNED BY CONTROLLING AGENCY	CIRCUIT BREAKER, MAGNETIC, LOW-POWER, SEALED, TRIP FREE TWO POLE, AUXILLIARY CONTACTS
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	0.75 AMPERES DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED BUSHING
MOUNTING SURFACE TO TERMINAL END DISTANCE	1.950 INCHES MAXIMUM
NOMINAL THREAD SIZE	0.138 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	50.0 DC THIRD LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	50.0 AC SECOND LOCATION
POLE QUANTITY	2
SPECIAL HANDLING FEATURE	MAGNETIC
SWITCH CONTACT ARRANGEMENT	DOUBLE POLE, DOUBLE THROW
SWITCH LOCATION AND POSITION DESIGNATION	EXTERNAL BETWEEN POLE ONE AND TWO
TERMINAL TYPE AND QUANTITY	2 SCREW
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD TOLERANCE CLASS	2B INTERNAL
UNPACKAGED UNIT WEIGHT	100.000 GRAMS NOMINAL

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