Lennox 57W75 CO Limit Switch M/R 250°F

The Lennox 57W75 is a Manual Reset CO Limit Switch of 250F, an essential part of the Air Conditioner, ventilation, and heating system, especially in furnaces and heaters. This switch which is intended for use with Lennox equipment isessential in controlling the temperatures in the system. The ‘CO’ in its name means that it serves as a Cut-Out switch and that when temperatures rise beyond 93° C or 250° F, the switch cuts off the circuit and the heating element to protect it against excessive temperatures and damage. Because it provides correct temperatures, it guarantees safe operation and enhances the performance of the system.