The 0445 Switch is available for purchase in following options:
Davies Craig very own designed Digital Thermatic Switch Kit can be used with our Thermatic Fans, EWP's and competitors Fans.
The kit comes with two sensors, a temperature probe and a 1/4" or 1/8" NPT threaded thermal sensor. The temperature probe senses air temperature as it passes through the radiator with the sensor placed in the radiator fin section. Alternatively you can use the threaded sensor which is placed directly into the coolant system in combination with a Temperature Sensor Adaptor Kit (Part 0409 for 1/4"NPT) this is available from our store, giving you a secure, leak free installation.
The switch can run 1 or 2 fans and be used for 12v or 24v applications. It has an adjustable temperature range of 40ºC to 110ºC (104ºF to 230ºF) the display can show Centigrade or Fahrenheit.
The fan/s will operate until the temperature falls by 5°C below the set temperature.
|Operating voltage||12V DC to 27V DC (For 24V, change of relay required)|
|Maximum current||Rated to 30A per fan|
|Relay Setup||Dual Relay|
|Sensor Wire Length||142cm in total (Wire from switch 112cm plus sensor connector wire of 30cm)|
|Speed||Single speed, 10 second delay to start second fan|
|Applications||Suitable for single and dual fan(s)|
|Screen Display||LED Digital temp display, actual temp + set temp|
|Temp Display||Centigrade or Fahrenheit|
|Temp Settings||40° to 110°C (104° to 230°F)|
|Set Temp Adjustment||Push Button|
|Output Wires||Batt+ve, Batt-ve, AC Clutch, Fan#1, Fan#2, Thermistor Probe|
|Dimensions||95 x 65 x 56mm|
|Digital Fan Switch IP66||1|
|Thermal Sensor Probe||1|
|1/4" or 1/8" NPT Themal Sensor||1|
|Mounting Kit for Thermal Sensor Probe||1|
|Red 6mm Ring Terminal||1|
|Blue 6mm Ring Terminal||1|
|Blue Wire Joiner||2|
|Self Tap Screw||2|
The kit is sold for 12V applications, for 24V applications you will need to purchase a 24v relay for each electric fan.
The stainless steel probe senses the air temperature as it passes through the radiator and has an adjustable temperature range of 40ºC to 110ºC (104ºF to 230ºF). The Temperature Sensor is placed in the radiator fin section as close to the hot coolant inlet as possible, no need to cut hoses.
The threaded sensor can be placed directly into the coolant system. You will need to use a Temperature Sensor Adaptor Kit (Part 0409 (1/4"NPT)) to assist with this type of fitment, or it can be screwed directly into the head. Alternatively you can purchase parts 0435 (35mm adaptor) or 0438 (38mm adaptor) which have everything you need.
*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 part number 8002 which can manage both the EWP and your Thermatic Fans.- 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
|DIGITAL THERMATIC SWITCH COMPARISSON TABLE|
|Air Temperature Sensor||Yes||Yes||Yes||Yes||Yes|
|Threaded Temperature Sensor||No||Yes - 1/4" NPT||Yes - 1/8" NPT||Yes - 1/4" NPT||Yes - 1/4" NPT|
|Sensor Adaptor Kit||No||No||No||Yes for 1/4" NPT||Yes for 1/4" NPT|
|0444 - Read more||0445 - Read more||0448 - Read more||0435 - Read more||0438 - Read more|