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 |
|---|---|
| 04801 | POWER PARAGON INC DBA POWER SYSTEMS |
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 | 17.350 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 19.000 INCHES NOMINAL |
| APHP | MANUAL OPERATION FACILITY | PROVIDED |
| AGAV | END ITEM IDENTIFICATION | SWITCHING UNIT, POWER |
| ABKW | OVERALL HEIGHT | 30.750 INCHES NOMINAL |
| SUPP | SUPPLEMENTARY FEATURES | CAN BE OPERATED AS A MANUAL SWITCH BY SELECTING THE MANUAL MODE USING A TOGGLE SWITCH LOCATED ON THE FRONT PANEL; IN MANUAL MODE, MOST OF SWITCH'S AUTOMATIC FUNCTIONS ARE DISABLED, MEANING THE SWITCH CAN BE TRANSFERRED CONVENIENTLY TO THE ALTERNATE SOURCE; THE UNIT REMAINS IN MANUAL MODE UNTIL THE AUTOMATIC MODE IS RESELECTED |
| FEAT | SPECIAL FEATURES | SOLID-STATE, 3 PHASE, DUAL POSITION SWITCH DESIGNED TO CONNECT THREE PHASE LOAD TERMINALS TO ONE OF TWO SETS OF THREE PHASE INPUT SOURCE TERMINALS; THE SABT MONITORS THE VOLTAGE AND FREQUENCY OF THE POWER FROM ONE INPUT SOURCE AND IF THE POWER FROM THE SOURCE DROPS BELOW ACCEPTABLE LEVELS, THE SABT SWITCHES FROM THAT POWER SOURCE TO THE SECOND INPUT POWER SOURCE, MAINTAINING A STEADY POWER FLOW TO THE LOAD |