The PKZM1 is a 3
phase thermal magnetic motor protective device incorporating
bimetal trips for motor overload protection and magnetic trips
to de-energize the motor circuit in case of a short circuit. It
is UL Listed and CSA certified as a HIP rated manual motor
controller which provides motor running overload protection. In
addition, the PKZM1 is UL listed and CSA certified for group
applications as per NEC 450-53(c) and CEC part 1, Rule 28-206.
This means that a group of motors, each protected and controlled
by a PKZM1 can be combined under a single branch circuit short
circuit and ground fault protective device the maximum rating of
which is marked on each PKZM 1 manual motor protector. |
