Elec. Fan 30 Amp Relay Switch

The Elec. Fan 30 Amp Relay Switch by PERMA-COOL is a dedicated electrical control module designed to manage high-amperage electric cooling fan circuits in automotive and off-road applications. This relay switch handles the demanding power requirements of modern electric fans, allowing drivers and technicians to achieve reliable, temperature-responsive cooling without manual intervention. Whether upgrading a street vehicle, race car, or tactical/emergency response platform, this component bridges the gap between a thermostat or ECU signal and the substantial current draw of a 30-amp cooling fan.

Rated for 30-amp continuous operation at 12 volts DC, the Elec. Fan 30 Amp Relay Switch employs a sealed AC relay design that isolates low-current control circuits from high-current load paths, preventing voltage drop and protecting sensitive electronics. The compact form factor—measuring 2.8 × 1.95 × 4.05 inches and weighing just 0.12 pounds—allows flexible mounting in engine bays or under-dash locations with minimal space constraints. The relay's construction ensures clean electrical switching with minimal heat generation, critical for prolonged operation in high-demand cooling scenarios where fan duty cycles may be frequent or continuous.

This relay is ideal for enthusiasts installing aftermarket electric fans, builders configuring dual-fan setups, and technicians servicing vehicles with OEM electric cooling systems. Installation typically involves wiring the relay's control terminals to a thermostat or engine control unit and routing the load terminals directly to the fan motor and ground, creating a dedicated 30-amp circuit. The PERMA-COOL 30-amp relay switch is compatible with any 12-volt electric cooling fan system designed for single-fan or multi-fan configurations, making it an essential upgrade for vehicles requiring predictable, high-capacity fan control.