Davies Craig Digital Thermatic Fan Switch GEN II with 1/8" NPT Sensor (0482)

Digital Thermatic^® Fan Switch - GEN II with 1/8" NPT Sensor

12 & 24 Volt | Part Number: 0482

(Supersedes Part No. 0448)

Upgrade your cooling control with the latest GEN II Digital Thermatic^® Fan Switch which includes the 1/8" NPT Sensor redesigned for improved usability, durability, and performance. Built for precision temperature management, this next-generation controller delivers smarter fan operation and enhanced installation flexibility.

Variations of Part No. 0482

• Part No. 0480: Digital Thermatic® Fan Switch GEN II. (Supersedes #0444)
• Part No. 0481: Digital Thermatic® Fan Switch GEN II with 1/4" NPT Thermal Sensor. (Supersedes #0445)
• Part No. 0483: Digital Thermatic® Fan Switch GEN II with M12 x 1.5 Thermal Sensor.
• Part No. 0484: Digital Thermatic® Fan Switch GEN II with M14 x 1.5 Thermal Sensor.
• Part No. 0485: Digital Thermatic® Fan Switch GEN II with 1/4" NPT Thermal Sensor & 35mm Inline Adapter. (Supersedes #0435)
• Part No. 0488: Digital Thermatic^® Fan Switch GEN II with 1/4" NPT Thermal Sensor & 38mm Inline Adapter. (Supersedes #0438)

What’s New vs Part No. 0448

• Improved Display & Layout
  • Larger, clearer LED display with °C / °F units
  • LED repositioned for better visibility
  • All wiring relocated to the rear for cleaner, easier installation
• Faster Dual Fan Operation
  • Second fan start-up delay reduced to 5 seconds for improved cooling response
• Advanced Override Control
  • Dual manual override wires for independent fan control
  • Selectable override signal polarity (positive or negative)
• Enhanced Durability
  • Upgraded to IP67 rating for superior water and dust protection
• Expanded Temperature Range
  • Adjustable from 5°C to 110°C (41°F to 230°F)

Key Features

• Digital temperature control with easy push-button adjustment
• Dual relay outputs for independent fan operation
• Automatic fan staging for efficient cooling
• Memory retention of temperature settings
• Designed for direct coolant measurement using included 1/8" NPT thermal sensor
• Suitable for 12V systems (24V compatible with relay change, part #10534, sold separately)

How It Works

• Fan 1 activates at your set temperature
• Fan 2 activates 5 seconds later for staged cooling
• Both fans switch off once temperature drops 5°C below set point

Installation Flexibility

• Direct coolant measurement via included 1/8" NPT sensor (ideal for thermostat housing, radiator, engine block or inline adapter)
• Radiator probe mounting or direct coolant measurement options
• Inline adapter compatibility for hose installation
• Simple wiring with clearly labelled connections (battery, ignition, fan outputs, overrides)

(Refer to installation diagrams and wiring layout shown on page 3 of the instructions for full setup guidance.)

Specifications

• Voltage: 12V (24V compatible with relay change)
• Temperature Range: 5°C – 110°C (41°F – 230°F)
• Continuous Current: 30A (40A max)
• Start-Up Current: 60A
• Protection Rating: IP67

What’s Included (Part No. 0482)

• Digital Thermatic^® Fan Switch GEN II
• 1/8" NPT Thermal Sensor Kit
• 1 x Temperature Probe
• 1 x Mounting Kit Temperature Probe
• 1 x Red Ring Terminal
• 1 x Blue Ring Terminal
• 2 x Blue Wire Joiner
• 2 x Self Tap Screws
• 1 x Instructions

Why Upgrade?

The GEN II isn’t just an update—it’s a complete usability and performance improvement over Part No. 0448. With smarter control, faster response, improved installation design, and direct coolant sensing capability, it delivers everything needed for modern cooling systems.