Power Transfer Switching Unit

Features

Specifications

• Frequency Rating:
  60.0 hertz
• Switch Position Quantity:
  2
• End Application:
  Auto bus transfer swit abt-1a2-100
• Current Rating In Amps:
  100.0
• Inclosure Feature:
  Dripproof
• Switch Operation Method:
  Manual
• Switch Action Type:
  Rotary
• Manual Operation Facility:
  Provided
• Voltage In Volts:
  120.0
• Phase:
  Three
• Relationship To Similar Equipment:
  REPL-AC-EME-NT/U
• Supplementary Features:
  Chgs made to prevent nuisance transfers when both sources are energized simultaneously, also when a short outage of both sources, when both sources are inphase. New instruction plate provides operational info with new revisions and new laminated wiring card are provided.
• Federal Supply Class (fsc):
  Electrical control equipment
• National Stock Number (nsn):
  6110-01-528-1489
• Special Features:
  Solenoid lock replaced by warning lite. 2 fuses with blown indicators protect l4 coil, ctrl panel & wiring if prevented from completing operation due to blockage/outside forces; 2 position cntrl disconnect switch replaces the 3 position switch. Insures proper sequencing oof abt when restored from manual to auto op; control contact assembly is incorporating non-adjustable cams, drive link bushings prevent overtight of lock nuts, & stronger drives linkages replace the previous assembly.