PKZ2/ZMR-1/S-SP Eaton Motor Protective Circuit Breaker

The PKZ2/ZMR-1/S-SP is a 3-pole, 1 A motor protective circuit breaker configured as a manual motor starter. It integrates the PKZ2/S-SP base module with built-in contactor, the ZMR-1-PKZ2 overload relay (adjustable thermal trip range: 0.6–1 A), and the C-PKZ2 DIN rail mount. Magnetic trip occurs between 8 A and 14 A. Rated for motors up to 1/2 HP at 460 V. Certified UL 508 and CSA 22.2 as UL/CSA Type E. Includes built-in auxiliary contacts, phase-loss differential trip, and a plug-in trip module. Supports accessories compatible with the PKZ2 platform. Designed for use in industrial motor control panels without requiring separate backup overcurrent protection.