The Mechanical Thermatic® Fan Switch can be used with Thermatic® Electric Fans, EWPs® & EBPs. It senses the coolant temperature after it passes through the engine block prior to entering the radiator and is adjustable from 40° to 100°C (104° to 212°F) via a simple knob. The Thermal Switch is mounted near the radiator and the stainless steel probe fitted inside the radiator hose. The Thermal Switch & relay kit enables a fan to operate both thermally and also when the air conditioning is running.

Should you not want to squeeze the probe of the Mechanical Thermatic® Switch between the radiator inlet and radiator hose, or the radiator fins, we recommend you look at part number 0409 or 0400 for the switch and adaptor bundled together.

*Note: if using this switch for use with our EWP's, it will not vary the speed of the pump in response to engine temperature but rather turn the pump on and off at your set temperature. For EWP control, we would recommend the Digital Controller, part number 8002 which can manage both the EWP® and your Thermatic Electric Fans.

24 Volt Application

The kit is sold for 12V applications, for 24V applictions you will need to purchase a 24v relay for each electric fan.

- There are other options on how to operate your Davies Craig Electric Water Pump, Thermatic Fan or Booster Pump which can be found here - Davies Craig Switches & Controllers