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Part Number

Part Number:
NSN:
NIIN:
Item Name:
CIRCUIT BREAKER

Definition:

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.

CAGE Information

Code Company
18876 U S ARMY AVIATION AND MISSILE COMMAN

Federal Supply Class

Title

CIRCUIT BREAKERS

Inclusions:

INCLUDES CIRCUIT BREAKERS AND CUTOUTS.

Exclusions:

EXCLUDES RELAYS.

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ADAT BODY WIDTH 0.980 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
PKWT UNPACKAGED UNIT WEIGHT 9.750 OUNCES
BBRG STORAGE TYPE GENERAL PURPOSE WAREHOUSE
CPRL TRIP RELEASE CHARACTERISTIC INSTANTANEOUS SINGLE LOCATION
CPRJ TRIP RELEASE METHOD MAGNETIC-HYDRAULIC SINGLE LOCATION
CPRH CIRCUIT PROTECTION TYPE OVERCURRENT SINGLE LOCATION
AAQL BODY STYLE SINGLE POLE TYPE
ADAQ BODY LENGTH 3.709 INCHES MINIMUM AND 3.729 INCHES MAXIMUM
AFJN FRAGILITY FACTOR MODERATELY RUGGED
TTQY TERMINAL TYPE AND QUANTITY 4 THREADED STUD
CQXF INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED FUNGUS RESISTANT AND MOISTURE RESISTANT
CPRR MAIN CONTACT TRIPPING MECHANISM TYPE TRIP FREE
CPRN ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT 120.0 SINGLE LOCATION
AEBY DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM
ADTV CASE MATERIAL PLASTIC
AKPX POLE QUANTITY 1
CPRQ RESET METHOD MANUAL
AEBP CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 3.053 INCHES MINIMUM AND 3.073 INCHES MAXIMUM
CPRG MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 4000.0 DC SINGLE LOCATION
CPRF OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 50.0 DC SINGLE LOCATION
AXHR MOUNTING FACILITY TYPE AND QUANTITY 2 THREADED HOLE
THSD THREAD SERIES DESIGNATOR UNC
APNQ ARC QUENCHING METHOD MAGNETIC BLOWOUT
AJEC BOSS HEIGHT 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM
CPRX ACTUATOR POSITION DESIGNATION AT POLE ONE
CPLM MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 200.0 MILLIAMPERES DC SINGLE LOCATION
AJWX MOUNTING SURFACE TO TERMINAL END DISTANCE 3.229 INCHES MINIMUM AND 3.249 INCHES MAXIMUM
CPRT MANUAL ACTUATOR TYPE AND QUANTITY 1 TOGGLE
CMLP THREAD QUANTITY PER INCH 32
CPSM INTERNAL TRIP RELEASE CONFIGURATION RELAY TRIP SINGLE LOCATION
CQJX NOMINAL THREAD SIZE 0.138 INCHES

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