BECKETT 4 in. Square Thermal Cut-Off Switch

Inner Tite Thermal Cut-offs are engineered to disconnect the power to heating systems when room temperature exceeds 165 degree F. When the heating system shuts off, flow of fuel oil or gas is discontinued eliminating the possibility of heater damage, a fire or acceleration of an existing fire. Required by law in some states. Inner Tite Thermal Cut-offs are economical, easy to install and a prudent back-up to existing built-in heating system controls.|Cuts off power to boiler in case of fire|Designed for a 4 in. square junction box|Silver in color|Wheel-style design