543-032

Ensure the safety and efficiency of your heating system with this premium 2-inch high-limit control switch. Designed as a critical safety component for HVAC units and furnaces, this thermal limit switch monitors internal temperatures to provide essential overheat protection. When the appliance reaches a specific thermal threshold—specifically 140 degrees Fahrenheit—the switch automatically opens the electrical circuit to prevent system damage. Once the temperature drops by the designated 40-degree differential, the switch resets to restore normal operation. This reliable replacement part is essential for maintaining consistent climate control and ensuring your residential or commercial heating equipment operates within safe parameters. Ideal for DIY repairs or professional HVAC maintenance, this switch helps prevent component failure and extends the lifespan of your heating appliance.
Type: High Limit Control Switch
Size: 2 inch
Dimensions: 2 inches
Application: Commonly used in gas furnaces, electric heaters, and HVAC air handling units to prevent overheating and ensure safe operating temperatures.
Specifications: Opening Temperature: 140°F; Reset Differential: 40°F; Switch Logic: Normally Closed (NC); Automatic Reset; 2-inch insertion depth for accurate thermal sensing.