Part Number
Part Number:
NSN:
NIIN:
Item Name:
SWITCHING UNIT , POWER TRANSFER
Definition:
AN ITEM THAT IS ELECTRICALLY OPERATED TO TRANSFER AUTOMATICALLY THE LOAD FROM ONE POWER SOURCE TO AN ALTERNATE POWER SOURCE. MAY HAVE PROVISIONS FOR EMERGENCY MANUAL OPERATION. FOR MANUALLY OPERATED POWER TRANSFER UNITS, SEE SWITCH, BOX.
CAGE Information
| Code | Company |
|---|---|
| 11660 | WESTINGHOUSE ELECTRIC CORP CONTROL B |
Federal Supply Class
Title
ELECTRICAL CONTROL EQUIPMENT
Inclusions:
INCLUDES CONTACTORS; MOTOR CONTROLLERS; POWER SERVOMECHANISMS; SWITCHGEAR; VOLTAGE REGULATORS.
Exclusions:
EXCLUDES AUTOMATIC PILOT MECHANISMS; RELAYS; RESISTORS.
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| APHK | SWITCH POLE QUANTITY | 3 |
| APHP | MANUAL OPERATION FACILITY | PROVIDED |
| ABMK | OVERALL WIDTH | 19.750 INCHES NOMINAL |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | YPE ABT-A3 COMPOSITION |
| FAAZ | PHASE | THREE |
| APHJ | SWITCH ACTION TYPE | MAGNETIC CONTACTOR |
| ALGC | MOUNTING CONFIGURATION | FOUR 5/8 IN. DIA MTG HOLES ON 16-1/4 IN. BY 12-1/4 IN. MTG CENTERS |
| AMPS | CURRENT RATING IN AMPS | 150.0 |
| ABKW | OVERALL HEIGHT | 18.500 INCHES NOMINAL |
| ANPZ | INCLOSURE FEATURE | DRIPPROOF |
| ACZB | FREQUENCY RATING | 60.0 HERTZ NOMINAL |
| ZZZW | DEPARTURE FROM CITED DOCUMENT | MIL-S-17773 EXCEPT RESISTORS MIL-R-26 RECTIFIERS COMMERCIAL GRADE |
| ELEC | VOLTAGE IN VOLTS | 450.0 |
| APHL | SWITCH OFF POSITION | INCLUDED |
| APHH | SWITCH OPERATION METHOD | MOTOR DRIVEN |
| AFTM | SWITCH POSITION QUANTITY | 3 |
| ABFY | OVERALL DEPTH | 20.750 INCHES NOMINAL |