These switches make it possible to safely isolate appliances. A good example of this is when you have a switch both at the top and bottom of your stairs.Ī double pole switch is usually rated at 30 amps, twice than a standard switch rated at 15-20 amps. Double pole wiring is used for setting up two and three-way switching for lights and fixtures.
This enables you to attach the switch to two pairs of power sources from a 240-volt circuit.ĭouble pole switches feature two sets of two screws, a pair for each side of the switch. Also, the switch controls the device, fixture, or mechanism from a single location.Ī noteworthy feature of double pole switches is their four hot brass terminal and a ground terminal. Similar to the single-pole switch, a double pole switch comes with an on/off labeling. In that case, a black tape should be wrapped around the white wire indicating that the neutral operates as a hot wire.Īlthough double pole switches aka four-way switches are primarily used in industrial settings, they’re also found in residential wiring systems. However, in the instance that the neutral is attached to the switch, it functions as a hot wire. One of the terminals is for the incoming power source wire while the other terminal accommodates the outgoing hot wire.Īs a rule of thumb, neutral wires (usually in white) aren’t connected to the switch. On a side note, the power source or hot wires are black in color. Under the hood, single-pole switches come with two brass-colored screw terminals that connect to the power source wires. However, not all single pole switches have the on/off labeling, most notably the rocker style switches.
Perhaps the most distinguishable characteristic of a single-pole switch is the on and off toggle. The switch only controls the flow of the current in one direction. This type of switch is used to operate lights, fans, or any other device from a single location. As far as switches go, the single-pole switch is the go-to workhorse for general purposes. Levitons Rocker Style Combination Decora Switch features two single-pole switches.
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