About the UAZ3255-75
The UAZ3255-75 is a 3-Phase 75 KW Thyristor/Converter Unit that was originally produced through Reliance Electric for the VZ3000 series. This unit was also probably sold under the Baldor Reliance or ABB lines as well, but the VZ3000 line has been completely discontinued by Reliance. The UAZ3255-75 may have become difficult to find, but AX Control still tries to keep it in stock as refurbished or new surplus stock.
There is documentation that indicated that the UAZ3255-75 is the same part as the UAZ-3275. This unit has a 200/220/230, 350 amp, 50/60 Hz input and a 370-310 VDC 298 amp output @ class 200 power supply voltage. This unit can overload for a solid minute totaling 150%. It weighs 25 kg. and is 230 mm wide, 400 mm tall, and 370 mm thick.
The UAZ3255-75 has a chassis enclosure. It is typically installed in a control cabinet vertically. When a user is installing this module, a duct system should be installed at the top of the cabinet to expel warm air being generated in the cabinet to just outside of it. It is also advisable for an ICB circuit breaker (sold separately) to be installed with this unit.
There are a total of two main terminals on the UAZ3255-75. There is a set that is on top of the unit that are labeled R, S, T, and E. The other set is located on the base of the module and are labeled PB, P, and W. There is also a terminal control strip and a series of display lamps that are located on the faceplate.