Power transfer switching unit (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.
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.
