Trane CNT0674 v 321894-706 Always verify the part number

Always verify the part number in your service manual or contact our team for a compatibility check

and rotation direction match the OEM specifications

Precision Shaft Design: The 3/8-inch diameter shaft is optimized for secure coupling to diverse HVAC blower components

Engineered for durability in demanding heating and refrigeration environments

The adjustable superheat setting and bi-flow capability make it a versatile component for both cooling and heat pump applications

Trane CNT0674 v 321894-706 Always verify the part numberThe Trane CNT0674 is an industrial grade 170 210F AUTO Limit Switch designed for high performance temperature regulation in forced air systems. As a SPST N C (Single Pole Single Throw, Normally Closed) safety control, this component is critical for preventing heat exchanger overheating. The switch is calibrated to open at 210F, effectively interrupting the burner or heating circuit when thermal limits are exceeded, and automatically resets when