100-232

Ensure the safety and efficiency of your heating system with this professional-grade L180-20F high-limit control switch. Designed as a critical safety component for furnaces and HVAC equipment, this normally closed (NC) SPST fan disc switch monitors temperature and automatically interrupts the electrical circuit if the unit exceeds the safe operating threshold of 180 degrees Fahrenheit. Once the system cools down by 20 degrees, the auto-reset feature restores functionality, preventing system damage and ensuring continuous operation. Ideal for HVAC maintenance and repairs, this thermal limit switch is essential for addressing furnace overheating or short-cycling issues in residential and commercial heating units.
Type: Fan Disc High Limit Control Switch
Size: Standard 3/4-inch disc mounting
Application: Used as a primary safety limit in gas furnaces, electric heaters, and air handlers to prevent heat exchanger damage and ensure safe operating temperatures.
Specifications: Switch Logic: Normally Closed (NC); Circuit: SPST (Single Pole Single Throw); Open Temperature: 180°F; Reset Differential: 20°F; Reset Type: Automatic; Contact Type: Fan Disc