PKZ2/ZM-6/S-SP Eaton Motor Protective Circuit Breaker

The PKZ2/ZM-6/S-SP is a 6A, 3-pole motor protective circuit breaker configured as a manual motor starter. It provides integrated overload and magnetic trip protection and is certified UL/CSA Type E. The unit comprises the PKZ2/S-SP base module with an integrated high-capacity contactor, the ZM-6-PKZ2 overload relay (adjustable thermal range: 4–6 A), and the C-PKZ2 DIN rail mounting adapter. Motor rating support is 1.5 HP at 230 V and 3 HP at 460 V. Magnetic trip adjustment spans 50–80 A. It includes built-in auxiliary contacts, phase-loss protection, and a plug-in trip module. No external overcurrent protection is required. Certification complies with UL 508 and CSA 22.2.