020-928

This high-performance L155F High Limit Switch is a critical safety component designed for HVAC systems, furnaces, and air handlers. As a normally closed (NC), single-pole single-throw (SPST) fan disc switch, it acts as a thermal safeguard by monitoring internal equipment temperatures. When the temperature reaches the 155°F threshold, the switch automatically opens to break the electrical circuit, preventing the appliance from overheating and protecting internal components from damage. Featuring an auto-reset function, the switch restores connectivity once the temperature drops to a safe level, ensuring continuous and reliable operation. This durable thermal control is essential for maintaining the safety and efficiency of residential and commercial heating units.
Type: High Limit Control Switch
Size: Standard Fan Disc
Application: Commonly used as a safety cutout in forced-air furnaces, electric heaters, and HVAC air handling units to prevent system overheating.
Specifications: Temperature Rating: L155F (Opens at 155°F); Circuitry: Single Pole Single Throw (SPST); Contact State: Normally Closed (NC); Reset Type: Automatic