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 |
|---|---|
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
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 |
|---|---|---|
| ABFY | OVERALL DEPTH | 22.875 INCHES NOMINAL |
| AMPS | CURRENT RATING IN AMPS | 30.0 |
| APHK | SWITCH POLE QUANTITY | 3 |
| ALGC | MOUNTING CONFIGURATION | FOUR 21/32 IN. DIA MTG HOLES ON 13-1/2 IN. BY 31-5/8 IN. MTG CENTERS |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | ABT-A3 TYPE |
| APHP | MANUAL OPERATION FACILITY | PROVIDED |
| ABHP | OVERALL LENGTH | 33.125 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 19.906 INCHES NOMINAL |
| FAAZ | PHASE | THREE |
| ACZB | FREQUENCY RATING | 60.0 HERTZ NOMINAL |
| ELEC | VOLTAGE IN VOLTS | 450.0 |
| APHJ | SWITCH ACTION TYPE | ROTARY |
| APHL | SWITCH OFF POSITION | INCLUDED |
| APHH | SWITCH OPERATION METHOD | MOTOR DRIVEN |
| ANPZ | INCLOSURE FEATURE | WATERTIGHT |
| AFTM | SWITCH POSITION QUANTITY | 3 |