545-155

This 5-inch high limit control switch is a vital safety component for residential furnaces and forced-air heating systems. Engineered to prevent equipment overheating, this thermal sensor monitors the heat exchanger's temperature and automatically cuts power to the heating element or burner if the temperature exceeds safe operating limits. Featuring a 155°F opening point and a 30°F reset differential, it ensures reliable performance and protects your HVAC system from potential heat-related damage. Whether you are performing routine maintenance or repairing a malfunctioning heater, this high-limit switch provides the precise temperature regulation needed for a safe and efficient home environment.
Type: High Limit Control Switch
Size: 5-inch probe length
Dimensions: 5 in
Application: Used in forced-air furnaces, residential heating systems, and HVAC units to monitor internal temperatures and provide automatic safety shut-off.
Specifications: Cut-out temperature: 155°F; Differential/Reset: 30°F; Automatic reset functionality; High-temperature safety limit.