York S1-7975-3281 Fan Auto Limit Switch 110°F-20°F

The York S1-7975-3281 Fan Auto Limit Switch is used to control the temperature-dependent in HVAC systems. Its main purpose is to open or close an electrical circuit upon sensing temperatures to the set limits between 110°F and 20°F. It has an internal temperature-sensitive mechanism that reacts to changes in heat at the sensing point and closes the contact. It requires the location of the switch in the specified area of temperature exposure and the control wiring according to specification.