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 |
|---|---|
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
Federal Supply Class
Title
CIRCUIT BREAKERS
Inclusions:
INCLUDES CIRCUIT BREAKERS AND CUTOUTS.
Exclusions:
EXCLUDES RELAYS.
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ABHP | OVERALL LENGTH | 25.000 INCHES NOMINAL |
| AKPX | POLE QUANTITY | 2 |
| CPRZ | AUXILIARY SWITCH FUNCTION AND QUANTITY | 1 CONTROL |
| CPRR | MAIN CONTACT TRIPPING MECHANISM TYPE | TRIP FREE |
| CQJX | NOMINAL THREAD SIZE | 0.375 INCHES |
| CPRF | OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS | 250.0 DC ALL LOCATIONS |
| CPLM | MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE | 800.0 AMPERES DC ALL LOCATIONS |
| CBBL | FEATURES PROVIDED | ADJUSTABLE TRIP RELEASE |
| AAQL | BODY STYLE | RECTANGULAR DIMENSIONAL ENVELOPE |
| AXHR | MOUNTING FACILITY TYPE AND QUANTITY | 8 THREADED HOLE |
| CPRQ | RESET METHOD | MANUAL |
| CPRL | TRIP RELEASE CHARACTERISTIC | INSTANTANEOUS ALL LOCATIONS AND TIME DELAY ALL LOCATIONS |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | ACB TYPE |
| CPRW | ACTUATOR FUNCTION | TRIP W/SEPARATE RESET |
| CPRJ | TRIP RELEASE METHOD | MAGNETIC ALL LOCATIONS |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY POLE QUANTITY,MAXIMUM CONTINUOUS LOADCURRENT RATING PER POLE,TRIPPING TIME IN SECONDS |
| TTQY | TERMINAL TYPE AND QUANTITY | 4 BUS BAR |
| CPRG | MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS | 60000.0 DC ALL LOCATIONS |
| CPRT | MANUAL ACTUATOR TYPE AND QUANTITY | 1 PUSH-PULL AND 1 ROTARY |
| ADTV | CASE MATERIAL | METAL |
| CPRH | CIRCUIT PROTECTION TYPE | OVERCURRENT ALL LOCATIONS |
| ABKW | OVERALL HEIGHT | 24.125 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 24.000 INCHES NOMINAL |
| CPSF | ADJUSTABLE TRIP SETTING CURRENT RANGE PER POLE IN AMPS | +800.0/+1600.0 DC ALL LOCATIONS |