The Under & Over Voltage Protection category at Roshanex lists release and trip units that fit ABB and Terasaki circuit breakers. It includes ABB under voltage releases for the A1 to A3, XT1 to XT3 and T7 breaker ranges, as well as ABB YU releases. Terasaki options include an under voltage release and a UVT trip for EPC breakers.

When supply voltage drops too low, these units trip the breaker, so motors and machines do not restart unexpectedly. Panel builders, electrical contractors and factory maintenance teams fit them in switchboards and motor control panels. Because each release suits a specific breaker frame, check the model name before you order. Our team can help you match under & over voltage protection parts, and we deliver across Pakistan.