Superior Electric RB-1256-B Transformer Brush Assembly

The RB1256B brush assembly from Superior Electric is a replacement brush kit for POWERSTAT variable transformers. It is designed specifically for use with the POWERSTAT series and is described in distributor listings as a dedicated replacement brush assembly for maintenance and repair of POWERSTAT units. The part number RB1256B (also listed as RB-1256-B) identifies this item as a transformer accessory within the POWERSTAT family, supplied by Superior Electric. Several retailers note the RB1256B as a USA-made product from the Superior Electric Company, highlighting its origin for service work on POWERSTAT equipment. This brush assembly is intended for technicians servicing POWERSTAT variable transformers, providing a direct replacement component to support continued operation of the voltage-control device in appropriate applications. Common replacement part listings appear across major distributors, confirming RB1256B's role as a standard replacement option within the POWERSTAT product ecosystem.