5940-00-549-9037 POST,BINDING,ELECTRICAL Index 5905-00-549-9045 RESISTOR,FIXED,FILM

National Stock Number:
5925-00-549-9040

Federal Supply Class:
5925

National Item Identification Number:
005499040

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:
AN3161P5081349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
AN3161P5088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
MILC707981349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
POLE QUANTITY1
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE50.0 AMPERES DC SINGLE LOCATION
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
TERMINAL TYPE AND QUANTITY2 SCREW
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS30.0 DC SINGLE LOCATION
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
RESET METHODMANUAL
MOUNTING FACILITY TYPE AND QUANTITY2 THREADED HOLE
CASE MATERIALPLASTIC
TRIP RELEASE METHODTHERMAL SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS1500.0 DC SINGLE LOCATION
TRIP RELEASE AMBIENT TEMP RATING25.0 DEG CELSIUS NOMINAL SINGLE LOCATION
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT10.000 MINIMUM AT 200 PCT AND
100.000 MAXIMUM AT 200 PCT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT138.0 SINGLE LOCATION
MAIN CONTACT TRIPPING MECHANISM TYPENONTRIP FREE
OVERALL LENGTH2.188 INCHES NOMINAL
OVERALL HEIGHT2.625 INCHES NOMINAL
OVERALL WIDTH0.750 INCHES NOMINAL
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD SIZE0.138 INCHES
THREAD QUANTITY PER INCH32
MANUAL ACTUATOR TYPE AND QUANTITY1 PUSH-PULL
ACTUATOR FUNCTIONTRIP-RESET
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDFUNGUS RESISTANT AND
MOISTURE RESISTANT
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN3161P50
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMILC7079


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