Where to buy hvac contactor

In this section, you will find helpful product tips, tools and some clips from our training classes. With single phase power there would be two legs of power that would be connected to L1 and L2. Think of a simple motor connection where two leads from the motor are connected to the two lines of power.

In the case of a contactor, those two motor leads would be connected at T1 and T2. Look closely at the 2 pole contactor. Notice the brass colored material between L1 and T1. This consists of an upper and lower section. The upper section makes contact with the lower section when the contactor coil is energized. This closes the circuit, allowing the power from L1 to pass to T1. There would be continuity between L1 and T1 when the coil is energized. Note that the power energizing the contactor coil may be a different source of power than that which is connected to L1 and L2.

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Brands Clear. More Brands. Discount Clear. More Discount. Availability Clear. Exclude Out Of Stock Series Clear. More Series. Rated Coil Voltage Clear. More Rated Coil Voltage. Phase Clear. Insulation Voltage Clear. The capacitor and contactor work hand in hand to keep you air conditioner running all summer long. The contactor is essentially a type of switch that receives a low voltage signal 24V from your furnace to power on.

By creating a magnetic field, it pulls down a piece of metal that will connect both of the higher voltage sides. Contactors come in generally two different types: single pole and double pole. A single pole contains one magnetic coil that will connect one circuit.

A double pole is essentially the same thing but it has two coils and connects two circuits. Without a chattering noise, the best way to diagnose a bad air conditioner capacitor is to use a multi-meter device that measures the flow of electricity.