Lennox 49K04 DPDT Relay 240V

The Lennox 49K04 Relay is an electrical switching component that is used in HVAC systems to switch multiple circuits using a single input signal. It is used in air handlers, furnaces, and other HVAC control panels to connect two independent circuits to be opened or closed in reaction to a control signal at 240V. It has two contacts, both of which are double-pole, double-throw, and can therefore be utilized with two independent circuits. It is required to enable the coordinated activities of the system components to ensure that there is uniformity in heating and cooling activities.