543-022

Maintain the safety and performance of your home heating system with this high-quality 3-inch high limit control switch. This essential safety sensor is designed to monitor the heat exchanger temperature within your furnace or HVAC unit, preventing hazardous overheating. When temperatures reach the calibrated 160°F limit, the switch interrupts power to the heating element or gas valve, protecting your equipment from damage. It features a 30°F differential reset, meaning it will automatically restore the circuit once the unit has cooled to a safe operating temperature. Ideal for repairing furnaces that are overheating, short cycling, or experiencing blower motor issues, this durable thermal limit control ensures your heating system operates within safe parameters. Its 3-inch probe design allows for accurate temperature sensing in the airflow stream of most standard forced-air systems.
Type: High Limit Control Switch
Size: 3-inch probe depth
Dimensions: 3 inches
Application: Residential gas and electric furnaces, air handlers, and forced-air heating systems.
Specifications: Trip Temperature: 160°F; Reset Differential: 30°F; Reset Type: Automatic; Contact Configuration: Single Pole Single Throw (SPST).