543-002

Ensure the safety and efficiency of your heating system with this premium 3-inch high limit control switch. Designed as a critical thermal safety component for furnaces and air handlers, this switch monitors the temperature within the heat exchanger. It acts as a fail-safe by automatically cutting power to the heating element or burner if the unit exceeds safe operating temperatures, preventing damage and potential fire hazards. This auto-reset thermal cutout features a 130-degree Fahrenheit trip point and a 30-degree differential, ensuring your HVAC system returns to operation only after cooling to a safe level. Ideal for furnace repair and routine maintenance, this durable sensor is essential for maintaining consistent climate control and extending the lifespan of your heating equipment.
Type: High Limit Control Switch
Size: 3-inch insertion depth
Dimensions: 3 in
Application: Commonly used in residential furnaces, air handlers, and forced-air heating systems to prevent overheating and protect the heat exchanger.
Specifications: Opens at 130°F; closes with a 30°F differential; automatic reset; 3-inch probe length.