120-657

The York/ETC High Limit Control Switch is a vital safety component designed for residential and commercial heating systems. This fan disc thermal switch acts as a critical safeguard by monitoring the internal temperature of your furnace or air handler. It is engineered to automatically interrupt the electrical circuit if the system reaches a dangerous temperature, preventing heat exchanger damage and ensuring safe operation. This specific limit control features a 165°F opening threshold and a 135°F reset temperature, making it an essential replacement part for systems experiencing short-cycling or overheating issues. Built for durability and precision, this sensor ensures your HVAC equipment maintains optimal climate control while adhering to strict safety standards.
Type: High Limit Control Switch
Size: Compact / Standard Fan Disc
Application: Gas furnaces, electric furnaces, air handlers, and central heating HVAC systems.
Specifications: Opening Temperature: 165°F; Closing/Reset Temperature: 135°F; Switch Configuration: Normally Closed (NC); Function: Thermal Cutout / Safety Limit.