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Double Pole Switches

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There are at least four terminals in a double pole (DP) switch, and these common devices allow two circuits to be either on or off while controlled by a single toggle, pushbutton or other actuator. Read More…

Double Pole Switches A double pole switch is an electric switch with a pair of actuators that are either connected to or disconnected from a circuit.
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Leading Manufacturers

Eden Prairie, MN  |  800-806-6113

The electric switches that we offer here at ALUDEC USA cannot be topped by the competition. We breathe and live precision and that means our products are at the top of the line at all times. It is our goal that each and every customer has their expectations exceeded so that we keep you coming back to us for all of your electric switch needs. Contact us via telephone or email or visit our website today to learn more about how we may be able to assist you!

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ALUDEC USA $$$

Plainville, CT  |  860-793-9281

Carling Technologies is one of the world's largest manufacturers of Hydraulic/Magnetic and Thermal Circuit Breakers, Electrical Switches and Assemblies, and Advanced Systems including Power Distribution Centers and Electronic Control Systems. From switches to custom controls and touch screen displays, Carling provides the most advanced electronic systems for HMI Solutions.

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Carling Technologies, Inc $$$

Shelton, CT  |  203-951-4600

Since 1947, EAO Switch Corporation has built a global reputation for innovation, consistent quality and excellence in the electrical world. Producing electric switch components such as push button switches, rocker switches, DIP switch and switch panel elements, EAO maintains high standards in every area of production. Contact us today for a competitive solution to your electronic switch needs!

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EAO Switch Corporation $$$

Little Rock, AR  |  866-600-6040

Carlton-Bates is a distributor of all kinds of electric switches: toggle switches, pushbutton switches, rocker switches, rotary tap and rotary switches, slide switches and more. We were founded in 1929, and are one of the 20 members of the National Electrical Distributors Association (NEDA).

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Carlton-Bates Company $$$

Franklin, WI  |  800-824-4031

At MELTRIC, our Switch-Rated plugs and receptacles combine the safety and functionality of a disconnect switch with the convenience of a plug and receptacle into one cost-effective, reliable device. These plugs can be safely connected and disconnected under full load. Since 1982, MELTRIC has been dedicated to ensuring electrical and user safety with every product.

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MELTRIC $$$

Harbor City, CA  |  310-534-0959

Judco Manufacturing Inc. manufactures and distributes a complete line of switches including pushbutton switches, slide switches, toggle switches, rocker switches, tact switches & custom switches to meet the needs of many applications. Call us for electrical switch needs and be our choice for switches.

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Judco Manufacturing Inc. $$$
placeholder image ALUDEC USA Carling Technologies, Inc EAO Switch Corporation Carlton-Bates Company MELTRIC Judco Manufacturing Inc.

DP switches may be either single throw (ST) or double throw (DT) depending on how many conducting positions the actuator can be in. Double pole, single throw switches consist of four brass terminals, connecting wires and two actuators inside one enclosure. A double pole, double throw has six brass terminals because it is practically two single pole, double throw switches paired together. DPST switches may be labeled with "On" and "Off" markings to identify which switch position closes the circuit.

DPDT switches are not as simple to label because no matter which position the switch is in, it still closes a circuit. Instead of being "On" or "Off," these switches are often labeled with the voltage or current of the corresponding circuit. DPST switches are often used to switch electricity mains because they can isolate both the live and neutral connections to avoid a safety issue. Double pole switches are also used to switch appliances using 240 volt circuits to a circuit of a different currency. They are commonly used in devices, equipment and appliances with multiple mechanical parts that function simultaneously.

Double pole switches are simple devices. When the switch is flipped or pushed, the actuator is brought into contact with a terminal. Because it is made from conductive material, the actuator acts as a bridge between the terminal and the rest of the circuit. The electrical switch is safely enclosed, protecting both the circuit and the user. The actuator may be a toggle switch that is flipped or, in the case of normal-off or momentary-on switches, a push button that is depressed.

Rocker buttons are widely used as well; they are curved buttons that click into place like a toggle. Though DPDT switches eliminate the "Off" setting, there are variations that include it as a third actuator position. This is useful for motor control because the motor's circuit can be configured to run forward, reverse and off.

DPST and DPDT switches can be used in combination with SPST and SPDT switches for many circuitry configurations. By bundling several switches in the same panel or assembly, activating one mechanism could activate many. Double pole switches are common, relatively inexpensive and easy to install. Faceplates, timers, light bulbs and waterproof enclosures are available as add-on features to enhance the look and use of these switches.