543-060

Ensure the safety and efficiency of your heating system with this 3-inch high limit switch. Designed as a critical thermal safety control for forced-air furnaces and HVAC equipment, this L120-30F switch monitors air temperature and automatically interrupts the electrical circuit if internal temperatures exceed safe operating limits. This prevents overheating and protects the heat exchanger from potential damage. A vital replacement part for residential and commercial heating repairs, it features a reliable automatic reset function and a 3-inch probe for accurate temperature sensing within the air stream. Maintaining a functional high limit sensor is essential for preventing fire hazards and ensuring your heating unit operates within manufacturer safety parameters.
Type: HVAC High Limit Control Switch
Size: 3-inch probe depth
Dimensions: 3 inches
Application: Commonly used in gas furnaces, electric heaters, and air handling units as a safety cutout to prevent overheating.
Specifications: Trip Temperature: 120°F; Differential: 30°F; Reset Type: Automatic; Contact Configuration: Normally Closed (NC)