A Contactor / Preventor is a device that control the flow of electricity to your air conditioner. It is a special type of relay used for switching an electrical circuit on or off. They are most commonly used with electric motors and lighting applications. By using an autotransformer, a lower voltage is present at the motor terminals, reducing starting torque and inrush current.

Relay goes on and off during the cooling cycle, maintaining the ideal temperature inside the cabinet. For the compressor to be connected, the start relay is required, it is responsible for supplying energy to the unit. The relay is in the on/off operating command. 

The compressor is normally near the rear floor of the refrigerator. As it does its job, it generates a great deal of heat. The Over Load Protector [OLP] sits near the condenser by the current start relay and ensures the condenser does not overheat while working.

We deal in following brands - MINILAC, HWALON, GREATWALL, TOTALINE, Etc..