Carrier 72909 DP Contactor 24V 40A 3-Pole

The Carrier 72909 DP Contactor is a electromagnetic in many Carrier HVAC applications including furnaces and air conditioning systems. It operates like a robust relay switching high current electrical loads like a compressor or heater. The contactor coil is energized by low voltage from the control board or the control circuit. In this case energizing this coil creates a magnetic field. The magnetic field a metal plate that makes physical with two high current terminals. Current can then pass through these interconnected to the required HVAC equipment for the purpose of powering same. It is due to the contactors that the Carrier HVAC system can handle high-power components with safety and efficiency.