Description

Overview

Thermo King High Pressure Cut Out Switch protects the refrigeration circuit on selected RD, TS and T-Series units by opening when discharge pressure climbs too high. It uses a 1/8 NPT male thread, and it matters when the unit trips on pressure, logs HPCO faults or needs a fresh switch during refrigeration repairs.

Features

• 1/8 NPT male thread for the pressure port
• Opens at 32.43 bar and closes at 25.87 bar
• 380mm lead for switch connection
• Suits selected Thermo King RD, TS and T-Series applications

Specifications and Materials

Thermo King High Pressure Cut Out Switch is a pressure-operated HPCO switch for refrigeration protection and shutdown control. It uses a 1/8 NPT male thread, opens at 32.43 bar, closes at 25.87 bar and carries a 380mm lead.

Part number: TK-41-3847-AM.

For Thermo King alarm and fault guidance, see the official Thermo King alarm codes guide

Compatibility and Fitment

Match the unit series, switch function and thread before ordering. This part suits selected Thermo King RD, TS and T-Series applications, including TS-200, TS-300, TS-500 and TS-600 plus several T-Series units such as T-500R, T-600R, T-800R and T-1000R. This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required. 41-3847, 413847, 413-847, 41-2998, 412998, 412-998

Compliance and Safety

Isolate power and relieve system pressure before removing the switch. Then keep the port clean, support the harness properly and avoid overtightening the thread, because damaged ports and strained leads can cause repeat faults after fitting.

Trailer Applications

Thermo King High Pressure Cut Out Switch suits trailer refrigeration service when the unit drops out on head pressure, flags a high pressure cut out switch fault or needs a replacement during condenser, fan or pressure-control diagnosis. It is also a sensible replacement when the original switch has aged wiring, unstable switching or visible damage around the body and lead.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

ICS Trailers carries Thermo King electrical and refrigeration service parts, so this switch sits with the pressure-control items often replaced in the same repair.

Browse Thermo King parts at ICS Trailers