PKZ2/ZM-32 Eaton Motor Protective Circuit Breaker

The PKZ2/ZM-32 is a modular motor circuit protector from Moeller, combining a PKZ2 basic module with a ZM-32-PKZ2 overload relay. It provides manual motor control together with overload protection for three-phase motor applications. The thermal trip can be adjusted across a 24–32 amps range, allowing the overload setting to match motor operating requirements, while the magnetic trip is adjustable from 275 to 425 amps for instantaneous overcurrent response. The assembly supports motors up to 20 HP at 460V and carries UL/CSA ratings for 3-phase motor protection. This model, identified as PKZ2/ZM-32, is categorized as a Motor Protective Circuit Breaker.