PKZ2/ZMR-25/S-SP Eaton Motor Protective Circuit Breaker

The PKZ2/ZMR-25/S-SP is a 25A, 3-pole motor protective circuit breaker configured as a self-protected manual motor starter. It combines a PKZ2/S-SP base module with integrated contactor, a ZMR-25-PKZ2 overload relay (adjustable thermal trip range: 16–25 A), and a C-PKZ2 DIN rail mount. Magnetic trip occurs between 200 A and 350 A. It supports motors up to 7.5 HP at 230 V and 20 HP at 460 V. Certified UL/CSA Type E as a combination motor controller, it does not require supplementary overcurrent protection. Features include a plug-in trip module, built-in auxiliary contacts, phase-loss trip capability, and compatibility with voltage trips and auxiliary signaling accessories.