PKZM0-25-T Eaton Motor Protective Circuit Breaker

The PKZM0-25-T designation accompanies a manual motor protective circuit breaker; the source identifies the covered unit as PKZM0-20-T. This three-phase device is intended for inductive loads and motors with high inrush current, combining an adjustable thermal range of 16–20A with a magnetic trip response of 350A. The thermal range accommodates the stated 20A rating, while the magnetic response provides short-circuit protection; the 10kA short-circuit current rating at 600V AC applies to industrial motor-control applications. The unit is UL listed and CSA certified for group installations under NEC 430-53 and CEC Rule 28-206, eliminating the need for individual branch-circuit overcurrent devices. Its 3P configuration, manual operation, adjustable thermal protection, and UL/CSA approval suit specified motor-control protection requirements.