543-504

Ensure the safety and longevity of your heating system with this 3-inch High Limit Control Switch. Designed as a vital safety cutout for forced air furnaces and HVAC equipment, this thermal switch monitors the temperature within the heat exchanger or plenum. It is engineered to automatically interrupt the electrical circuit to the burner if the internal temperature exceeds 180°F, preventing potential overheating and equipment damage. Featuring a 3-inch sensing probe for precise thermal detection, this limit control is a standard replacement for maintaining safe operating conditions in residential and commercial heating units.
Type: High Limit Control Switch
Size: 3-inch probe
Dimensions: 3 in
Application: Forced air furnaces, HVAC systems, and residential heating units
Specifications: Cutout Temperature: 180°F; Insertion Depth: 3 inches; Function: Safety thermal limit cutout; Mounting: Plenum or heat exchanger