York S1-025-35381-000 Auto Limit Switch 115°F–145°F

The York S1-025-35381-000 Auto Reset Limit Switch is a component that is temperature-activated to detect the amount of heat in HVAC systems. It will switch off at 115°F to interrupt the system when it reaches a specific temperature, and it will automatically restart at 145°F when everything is normal. It is installed close to heat exchangers, burners or air handlers to avoid overheating by regulating circuit continuity to fans, burners or other components. This limit switch application control in furnaces and rooftop units, ensuring safe operation, eliminates damage caused by the high temperatures and facilitating the operation of heating equipment.