000-172

This high-quality high-limit control switch is a critical safety component designed for HVAC systems and furnaces. As a fan disc style switch, it monitors the internal temperature of the heating appliance to prevent overheating and potential equipment damage. It features an automatic reset mechanism, which restores the circuit once the unit cools to a safe operating temperature. The SPDT (Single Pole Double Throw) configuration allows for versatile electrical connectivity, making it an essential replacement part for maintaining the safety and efficiency of residential and commercial heating units. If your furnace is cycling incorrectly or failing to activate the blower fan, this thermal limit switch is a primary component to inspect.
Type: Fan Disc High Limit Control Switch
Size: Standard Disc Size
Application: Commonly used in gas and electric furnaces, rooftop units, and residential HVAC air handlers to monitor temperature and provide high-limit safety protection.
Specifications: Switch Logic: SPDT (Single Pole Double Throw); Open Temperature: 160°F; Close/Reset Differential: 40°F; Reset Type: Automatic