543-503

Optimize your heating system's efficiency and safety with this 3-inch Camstat Adjustable Fan Off and Limit Switch Upgrade. This high-performance HVAC component provides precise control over your furnace blower operation, featuring a customizable fan-off temperature range between 90°F and 120°F. Built to function as both a fan controller and a safety high-limit switch, it ensures your heating unit operates within safe thermal parameters, preventing overheating and extending the lifespan of your equipment. Whether you are performing a routine furnace tune-up or upgrading an older system, this reliable thermal switch is a critical part for maintaining consistent airflow and reliable temperature management in forced-air heaters.
Type: High Limit Control Switch
Size: 3-inch insertion depth
Dimensions: 3 in
Application: Forced-air furnaces, residential heating systems, and commercial HVAC equipment requiring thermal fan control and high-limit safety protection.
Specifications: Adjustable Fan Off Range: 90°F to 120°F; Dual function Fan/Limit control; Standard 3-inch insertion depth; Camstat-style adjustable settings.