Thermo King 414372 Relay Control Board 3B18748G01 Refrigeration Controller

USED

The Thermo King 414372 Relay Control Board (3B18748G01) is an OEM electronic control module used in Thermo King transport refrigeration systems.

This board controls multiple 12V relay outputs and system functions within trailer and truck refrigeration units. Equipped with high-current Bosch relays (20/30A), it manages compressor, fan, and auxiliary circuit switching.

Designed for reliable operation in harsh transport environments.

🔹 Technical Details:

• Manufacturer: Thermo King

• Part Number: 414372

• PCB Code: 3B18748G01

• Relay Type: Bosch 12V 20/30A

• System Voltage: 12V DC

• Application: Transport refrigeration units

• Industrial control PCB

🔹 Typical Applications:

• Thermo King trailer refrigeration units

• Truck refrigeration systems

• Reefer control systems

• Compressor & fan relay control

• Auxiliary system switching