5925-00-140-2354 CIRCUIT BREAKER Index 5925-00-140-2356 CIRCUIT BREAKER

National Stock Number:
5925-00-140-2355

Federal Supply Class:
5925

National Item Identification Number:
001402355

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:
SMA742926-180063US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT POLE ONE
BODY LENGTH2.500 INCHES NOMINAL
BODY STYLESINGLE POLE TYPE
BODY WIDTH0.750 INCHES NOMINAL
BOSS HEIGHT0.150 INCHES NOMINAL
CASE MATERIALPLASTIC
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH1.928 INCHES MINIMUM AND 1.955 INCHES MAXIMUM
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH2.062 INCHES NOMINAL
FRAGILITY FACTORMODERATELY RUGGED
FREQUENCY IN HERTZ50.0 SINGLE LOCATION
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDFUNGUS RESISTANT AND MOISTURE RESISTANT AND SALT SPRAY PROOF
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP SINGLE LOCATION
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS125.0 AC SINGLE LOCATION
MANUAL ACTUATOR TYPE AND QUANTITY1 TOGGLE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE4.0 AMPERES AC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS1000.0 AC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY2 THREADED HOLE
MOUNTING SURFACE TO TERMINAL END DISTANCE2.692 INCHES MAXIMUM
NOMINAL THREAD SIZE0.138 INCHES
POLE QUANTITY1
RESET METHODMANUAL
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
TRIP RELEASE METHODMAGNETIC SINGLE LOCATION
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT2.500 MINIMUM AT 200 PCT AND 25.000 MAXIMUM AT 200 PCT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT140.0 SINGLE LOCATION
STORAGE TYPEGENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY2 THREADED STUD
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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