Part Number
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 |