Description
The Emerson Climate-White Rodgers 3L09-1 Limit Switch is a thermal component to regulate temperature response within heating equipment assemblies. It features a 1.87-inch configuration and operates by opening the circuit at 140F and reconnecting at 100F as temperatures decrease. In HVAC systems, it is commonly applied in furnaces, air handlers, and unit heaters where temperature-sensitive circuit control is required near heated sections. The switch is positioned within the appliance structure adjacent to heat-generating areas, coordinating electrical activity according to thermal conditions during normal heating cycles in residential and light commercial equipment setups.









