PKZM4-50 Eaton Motor Protective Circuit Breaker

The PKZM4-50 is a motor protective circuit breaker with screw terminal connection. It provides thermal and magnetic motor protection, with an adjustable overload release range of 40–50A. The device has a short-circuit breaking capacity of 50kA at 600V and a fixed magnetic short-circuit release point of 560A. It is designed for coordination with current-limiting backup fuses or circuit breakers rated up to 600A. This unit meets applicable industrial safety and performance requirements for motor circuit protection in demanding applications.