Trane SWT1257 Limit Switch 326058-755 Precision Airflow: Advanced ECM technology

Precision Airflow: Advanced ECM technology automatically adjusts torque to maintain constant CFM regardless of filter load

preventing furnace operation if dangerous venting conditions are detected

This kit uses a 6-pin polarized plug for rapid communication with the control board

Is this harness compatible with other HVAC brands

specific wiring configurations depend on your heater's control board

Trane SWT1257 Limit Switch 326058-755 Precision Airflow: Advanced ECM technologyThe Trane SWT1257 Limit Switch is a critical safety component designed for heavy duty furnace high limit switch applications. This genuine OEM Trane part (also referenced as SWT01257) functions as a normally closed thermal protector that triggers an automatic shutdown if heat exchanger temperatures exceed safe operating parameters. Rated with an L160 30F fixed set point, the switch is engineered to open at 160F and features an auto reset mechanism