The Trane THT2212 Single Pole Single Throw Thermal Cutoff Safety Switch is an OEM HVAC safety limit control for Trane and American Standard heating and cooling equipment.

This normally closed SPST thermal switch opens at 265°F to interrupt power when excessive temperature is detected, helping protect compressors and critical system components from overheating damage.

After the equipment cools, the switch automatically resets and closes at 35°F to restore circuit continuity. Rated up to 35 amps at 120VAC, the THT2212 delivers dependable thermal protection in a compact industrial-grade design built for demanding HVAC service and reliable OEM replacement performance.

Frequently Asked Questions
 

• What is the Trane THT2212 used for?

The Trane THT2212 is used as a thermal cutoff safety switch in HVAC equipment. It helps protect heating and cooling systems by interrupting the electrical circuit when unsafe operating temperatures are detected.

• Is the Trane THT2212 a normally closed switch?

Yes. The THT2212 is a normally closed Single Pole Single Throw switch. It remains closed during normal operation and opens when the cutoff temperature is reached.

• At what temperature does the Trane THT2212 open?

The Trane THT2212 opens at 265°F to stop circuit operation when excessive heat is detected.

• Does the Trane THT2212 reset automatically?

Yes. The switch automatically resets and closes after the temperature drops to approximately 35°F, allowing circuit continuity to return.

• What equipment is the Trane THT2212 compatible with?

The THT2212 is designed for use with compatible Trane and American Standard HVAC equipment. It is commonly used in systems that require thermal limit protection for compressors, heating components, cooling components, and other critical electrical circuits.

• What is the electrical rating of the Trane THT2212?

The Trane THT2212 is rated up to 35 amps at 120VAC.

• Is the Trane THT2212 an OEM replacement part?

Yes. The Trane THT2212 is an OEM replacement thermal cutoff safety switch designed for proper fit and function in compatible Trane and American Standard equipment.

• Why is a thermal cutoff safety switch important?

A thermal cutoff safety switch helps prevent overheating damage by opening the circuit when temperatures exceed a safe limit. This supports equipment safety, protects critical HVAC components, and helps maintain reliable system performance.