Cutler Hammer-Eaton PKZM0-0.63 3-Pole Motor Circuit Breaker 0.4-0.63A

The Cutler Hammer Eaton PKZM0-0.63 Motor circuit breaker is used in HVAC systems to protect electric motors from overloads and short circuits and has a current setting of 0.4-0.63A and three poles. This part combines the features of low-voltage circuit breakers and thermal overload relay and offers optimum protection to motors used in HVAC systems including air handling units, compressors, and pumps. By constantly sampling the current through the motor circuit, they can identify if the current has risen above the normal threshold and switch to break the circuit hence protecting the motor from either overheating or short-circuiting.