762-086

This high-quality L140-30F high limit disc switch is a vital safety component for residential furnaces and HVAC heating systems. Designed to monitor the temperature within the heat exchanger or air plenum, this automatic reset control prevents the appliance from overheating by interrupting the heating circuit if temperatures exceed safe operating limits. When the internal temperature reaches 140°F, the switch opens to cut power to the heating source, and it automatically resets once the unit cools to 110°F. If your furnace is tripping or cycling improperly, replacing a worn limit switch can restore safe and efficient operation. This snap-action thermal disc is built for durability and precision, offering reliable protection for gas and electric heating equipment.
Type: High Limit Control Switch
Size: Small/Standard
Application: Ideal for use in residential gas furnaces, electric furnaces, and air handlers as a high-temperature safety shutoff and heat exchanger monitor.
Specifications: Opens at 140°F; Closes at 110°F; 30°F Temperature Differential; Automatic Reset Functionality; Snap-Action Disc; SPST (Single Pole Single Throw) Circuitry.