Trane American Standard SWT01652 OEM Thermal Limit Switch – Opens at 230°F, Closes at 200°F, 5.8 FLA at 120V – Furnace High-Temperature Safety Control

Product Description

The Trane American Standard SWT01652 Thermal Limit Switch is an OEM temperature-actuated safety control designed for compatible Trane and American Standard heating equipment.

Engineered to protect HVAC heating systems from excessive operating temperatures, the SWT01652 is designed to open its electrical contacts at 230°F and close at 200°F, helping maintain the manufacturer's intended furnace temperature protection.

This thermal limit switch features a 30°F operating differential, allowing its contacts to automatically reclose after the sensed temperature decreases to the specified closing temperature.

Rated at 5.8 full-load amperes (FLA) at 120 volts, the SWT01652 is intended for approved HVAC applications requiring these specific temperature and electrical ratings.

Whether replacing a malfunctioning furnace high-limit switch or servicing a compatible heating system, the Trane SWT01652 provides an OEM replacement option for equipment requiring this exact part number.

Key Features & Function

• Brand: Trane / American Standard
• Manufacturer Part Number: SWT01652
• OEM thermal limit safety switch
• Opening Temperature: 230°F (110°C)
• Closing Temperature: 200°F (93.3°C)
• Temperature Differential: 30°F
• Electrical Rating: 5.8 FLA at 120V
• Automatic temperature-based contact reclosure
• Fixed-temperature thermal safety control
• Designed to respond to excessive furnace temperatures
• Helps protect compatible heating equipment against overheating
• Equipment-specific OEM replacement
• Suitable for professional HVAC maintenance and repair

Product Details & Specifications

Specification Note: The opening temperature, closing temperature, and electrical rating are based on the supplied product description. Exact terminal configuration, physical dimensions, and compatible furnace models should be verified before purchasing.

HVAC Depot Pro Tip

A furnace thermal limit switch is an essential safety component that helps prevent excessive heating temperatures.

If the Trane SWT01652 repeatedly opens, the heating system may be experiencing restricted airflow, abnormal combustion conditions, or another equipment malfunction.

Recommended diagnostic checks:

1. Confirm the complete furnace model and serial number.
2. Verify the original thermal limit switch part number.
3. Inspect the return air filter for restrictions.
4. Check blower motor operation and blower wheel condition.
5. Verify proper airflow through the heating system.
6. Inspect supply and return duct restrictions.
7. Measure furnace temperature rise against the equipment rating plate.
8. Inspect the burner and heat exchanger as appropriate.
9. Check the switch wiring and electrical connections.
10. Verify the replacement switch has the correct 230°F opening and 200°F closing temperatures.

HVAC Depot Pro Tip: The SWT01652 features a 30°F temperature differential. The switch opens at 230°F and automatically recloses when its sensed temperature falls to 200°F.

Repeated thermal limit activation should be treated as a symptom of an underlying equipment problem rather than simply a failed switch.

Important Safety Warning: Never bypass or jumper a furnace thermal limit switch. Do not substitute a switch with a higher temperature rating unless explicitly authorized by the equipment manufacturer.

Equipment / Model Compatibility

The Trane SWT01652 is intended for select Trane and American Standard heating systems requiring this specific OEM thermal limit switch.

Exact compatible furnace model numbers have not been independently verified.

Before ordering, confirm:

• Complete equipment model number
• Equipment serial number
• Original thermal limit switch part number
• Required 230°F opening temperature
• Required 200°F closing temperature
• 5.8 FLA at 120V electrical rating
• Terminal configuration
• Mounting style and dimensions
• Manufacturer-approved replacement requirements

Compatibility Notice: SWT01652 is not a universal thermal limit switch. Matching the opening temperature alone does not guarantee equipment compatibility.