We have the replacement contactor you need to repair your HVAC-R system. A contactor is a part of an electronic appliance that makes and breaks an electrical circuit. A contactor in an HVAC-R system may turn the motor on and off. Rather than making appliances with a direct connection between the PLC and certain parts, the contactor functions as a safe mediator between a high-power part such as a motor and the more delicate PLC. Be sure to know the specifications of the contactor for your appliance, including but not limited to FLA, RLA, voltage, and poles.