Supco 90340 Switching Fan Relay

The Supco 90340 Switching Fan Relay is a part of the HVAC systems used to operate the condenser or blower by switching electrical power depending on control signals. It is an electromechanical relay, and under the condition of being energized, the contacts are closed, and under the condition of being de-energized, the contacts are opened to allow the flow of current to the fan motor and the opposite. This is used in motor compartments and connected to the control board circuit to assist in cycling the fans and controlling the supply of air to the air conditioners, heat pumps.