Moeller PKZ2/ZMR
Manual Motor Protector
and Starter Overview

The PKZ2-ZM-../S is a combination of the PKZ2/ZM-... manual motor protector and the S-PKZ2 high capacity magnetic contactor.

UL listed and CSA certified as HP rated motor controllers which provide motor running overload protection.  In addition, they are UL listed and CSA certified for group applications as per NEC 430-53(c) and CEC part 1, rule 28-206.  This eliminates the need for individual motor branch circuit over current protective devices for each motor, thus greatly reducing the cost and space requirements of industrial control panels and assemblies.  This manes that a group of motors, each protected and controlled by PKZ2/SM...(/s) can be combined under a single branch circuit short circuit and ground fault protective device, the maximum rating of which is marked on each PKZ2 motor protector.

In group installations involving a number of System PKZ2 motor protectors, the maximum rating of the group branch circuit over current protective device is based on the lowest backup over current rating marked on each motor protector in the group, combines with applicable NEC/CEC installation rules.