5306-00-001-1276 BOLT,INTERNAL WRENCHING Index 3441-00-001-1279 BENDING MACHINE,PIPE AND CONDUIT

National Stock Number:
5925-00-001-1277

Federal Supply Class:
5925

National Item Identification Number:
000011277

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:
10158805-418876U S ARMY AVIATION AND MISSILE COMMAND
7MC3-5-2582647SENSATA TECHNOLOGIES, INC.


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT POLE ONE
ARC QUENCHING METHODMAGNETIC BLOWOUT
AUXILIARY SWITCH FUNCTION AND QUANTITY1 CONTROL
BODY LENGTH1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM
BODY STYLESINGLE POLE TYPE
BODY WIDTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
BUSHING LENGTH0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH1.225 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
FRAGILITY FACTORMODERATELY RUGGED
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP SINGLE LOCATION
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY1 PUSH-PULL
MATERIALALUMINUM CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE25.0 AMPERES DC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS2500.0 DC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED BUSHING
MOUNTING SURFACE TO TERMINAL END DISTANCE1.623 INCHES MINIMUM AND 1.653 INCHES MAXIMUM
NOMINAL THREAD SIZE0.469 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS32.0 DC SINGLE LOCATION
POLE QUANTITY1
RESET METHODMANUAL
UNTHREADED MOUNTING HOLE DIAMETER0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
STORAGE TYPEGENERAL PURPOSE WAREHOUSE
SWITCH TERMINAL TYPETURRET
SWITCH VOLTAGE RATING AND TYPE IN VOLTS28.0 DC
SWITCH CONTACT ARRANGEMENTSINGLE POLE, SINGLE THROW, NORMALLY OPEN
SWITCH CURRENT RATING AND TYPE IN AMPS7.0 DC
SWITCH LOCATION AND POSITION DESIGNATIONINTERNAL AT POLE ONE
TERMINAL TYPE AND QUANTITY2 TAB, SOLDER LUG
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNS
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT0.700 MINIMUM AT 200 PCT AND 4.500 MAXIMUM AT 200 PCT SINGLE LOCATION
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
TRIP RELEASE METHODMAGNETIC-HYDRAULIC SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT135.0 SINGLE LOCATION
ULTIMATE TRIP TIME PER POLE IN SECONDS12.000 MAXIMUM SINGLE LOCATION


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