543-161

Ensure the safety and efficiency of your heating system with this 3-inch high limit switch. Designed as a critical thermal safeguard for forced-air furnaces and HVAC units, this switch monitors internal temperatures to prevent overheating. If the furnace plenum reaches a designated temperature, the switch automatically breaks the electrical circuit, protecting your equipment from heat damage and potential fire hazards. This specific limit control features a 160-degree Fahrenheit opening point and a 30-degree differential for a reliable reset. It is an essential replacement part for restoring proper heating cycles and maintaining consistent climate control in residential or commercial forced-air systems.
Type: High Limit Control Switch
Size: 3-inch insertion depth
Dimensions: 3 in
Application: Designed for use in residential and commercial furnaces, air handlers, and HVAC systems as a safety-critical temperature monitoring device.
Specifications: Open Temperature: 160°F; Differential: 30°F (Closes at 130°F); Standard 3-inch probe insertion.