543-035

The 3-inch High Limit Switch L190-20F is a vital safety component designed for HVAC systems, gas furnaces, and electric heating appliances. This thermal cutout switch acts as a failsafe, monitoring the internal temperature of your equipment to prevent overheating. When the ambient temperature reaches the fixed set point of 190°F, the switch opens the electrical circuit to shut down the heating element or burner, protecting the appliance from damage and ensuring home safety. Featuring a 20°F differential, the switch automatically resets once the temperature drops, allowing for continued operation. This durable high-limit thermostat is an essential replacement part for maintaining the reliability and efficiency of residential and commercial heating units.
Type: High Limit Thermostat Control Switch
Size: 3-inch insertion depth
Dimensions: 3 inches
Application: Commonly used in forced air furnaces, unit heaters, HVAC air handlers, and clothes dryers to provide over-temperature protection.
Specifications: Cut-out temperature: 190°F; Differential/Reset: 20°F; Configuration: Normally Closed (NC); Mount type: Flange mount