120-070

This premium high-limit auxiliary limit switch is a critical safety component designed for modern heating systems and furnaces. Functioning as a fan disc-style thermal sensor, this switch is engineered to monitor internal temperatures and automatically open the circuit at a fixed threshold of 160°F. By preventing the system from exceeding safe operating temperatures, it protects the heat exchanger and other sensitive HVAC components from potential heat-related damage. This 160-degree auxiliary switch is a common replacement part for gas and electric furnaces that are experiencing cycling issues or safety shutdowns. Its durable construction ensures reliable temperature sensing and consistent performance in demanding residential and light commercial heating applications.
Type: High Limit Control Switch
Size: Standard Fan Disc
Application: Used as secondary over-temperature protection in gas furnaces, electric heating units, and central HVAC air handlers to monitor internal air temperatures.
Specifications: Opening Temperature: 160°F; Switch Logic: Opens on temperature rise; Component Type: Auxiliary Limit; Sensor Style: Fan Disc