The White-Rodgers 3L09-4 Limit Switch is a 1/2-inch bimetal disc control engineered for critical thermal protection in residential furnaces and air handling units

High Amperage Rating: Capable of handling 15 Amp resistive loads

Electrical Reliability: High-quality insulation on the 60" lead wire prevents shorting against the furnace chassis during high-temperature operation

the regulator must be installed in a horizontal upright position when using the 12A09

By providing precise electromagnetic force to the valve plunger

Trane BRD0916 Fan Control Board Els PW 17895 The White-Rodgers 3L09-4 Limit SwitchThe Trane BRD0916 Fan Control Board (often cross referenced as BRD00916) is a critical OEM component designed to manage blower motor operations within residential and commercial Trane HVAC systems. Engineered for 24V AC input, this fan timer control board regulates the initiation and delay sequences of the indoor fan motor, ensuring efficient airflow transition between heating and cooling cycles. Field tested for high demand environments, the board