York S1-025-41322-000 Auto Limit Switch 120°F-160°F

The York S1-025-41322-000 Auto Limit Switch is a control component used to monitor and regulate temperature thresholds within heating equipment. It is designed to interrupt or restore circuit operation when internal temperatures reach between 120F and 160F and maintain safe operating conditions in HVAC systems. The switch is installed in furnaces and air handling units where thermal protection is required. It operates as part of the systems safety control sequence and working alongside burners, blowers and thermostats to restart during temperature fluctuations in residential and commercial applications.