547-205

This 7-inch high limit control switch is a vital safety component designed for residential and commercial heating systems. Functioning as a high-temperature cutout, this thermal switch monitors the internal temperature of the heat exchanger. If the unit exceeds safe operating parameters, the switch opens the electrical circuit to shut down the burner or heating element, preventing equipment damage and ensuring home safety. Featuring a 205°F trip point and a 30°F reset differential, this snap-action sensor is an essential replacement part for furnaces or air handlers experiencing short-cycling or overheating issues caused by restricted airflow or blower failure. Its 7-inch insertion depth allows for precise temperature sensing in deeper furnace cabinets.
Type: High Limit Control Switch
Size: 7-inch Insertion Depth
Dimensions: 7 inches (probe depth)
Application: Used primarily in forced-air furnaces, gas-fired heating systems, and air handlers to provide over-temperature protection and flame safety control.
Specifications: Cutout temperature: 205°F; Differential: 30°F (closes at 175°F); Switch configuration: Normally Closed (NC) - opens on temperature rise; Mounting style: Flange mount.