double pole switch wiring
Mia Lopez
Updated on June 14, 2026
A double pole switch controls two separate circuits. These types of switches make it possible to isolate appliances safely. Double pole switches also tend to be used for appliances with heavy loads like cookers and showers.
What’s the difference between a single pole and a double pole light switch?
Both single pole and double pole switches can be either single or double throw. A pole refers to the number of separate circuits a switch can control, a single pole switch can operate one circuit whereas a double pole switch can control two circuits. A throw refers to how many positions can be activated by a switch.
Is a double pole switch the same as a 4 way switch?
The four-way switch looks similar to a double-pole switch but without markings. It has four terminals plus a ground terminal. Two of the four terminals are usually brass-colored, and the other two are dark. There is no “COM” or “common” terminal, as is found on a three-way switch.
What is the difference between a 2 pole and 3 pole switch?
Besides a few exceptions, you can see the difference quite easily by looking at the plug itself: 2-pole devices plugs have 2 pins and 3-pole plugs have 3. The exception, as previously mentioned, is the Schuko plug, which is normally used throughout Europe.
What is the difference between a single pole and a double pole circuit breaker?
Single-pole breakers: Provide 120 volts, 15-20 amps and have one hot wire and one neutral wire. Double-pole breakers: Provide 240 volts, 20-60 amps and have two hot wires that share one neutral wire.
Does it matter what wire goes where on a light switch?
It doesn’t matter as long as you do it the same on both switches. So, if you connect it to the upper right terminal on one switch, connect it to the upper right terminal on the other switch. Connect the second traveler wire to the terminal opposite the red wire terminal.
What are the 4 types of switches?
The types of switches are classified into four types namely:
SPST (Single Pole Single throw)SPDT (single pole double throw)DPST (double pole, single throw)DPDT (double pole double throw)
How can you tell if a switch is 4 way or 3 way?
A three-way switch has three terminals; a four-way has four. These control a light from two or three switch locations, such as at the top and bottom of a stairwell, at either end of a hallway, or in a large room with multiple entrances.
What is a double throw double pole switch?
What is a DPDT Switch? A Double Pole Double Throw (DPDT) switch consists of six terminals, two of which are independent input terminals. Each of the poles can complete two different circuits. In other words, each input terminal connects with two output terminals, and all four output terminals are separate.
What is a 2 pole single throw switch?
A Double Pole Single Throw (DPST) switch is a switch that has 2 inputs and 2 outputs; each input has 1 corresponding output. Each of the terminals of a double pole single switch can either be in the on position (closed) or in the off position (open).
Can I use a double pole switch as a 3-way switch?
Things You’ll Need
A double-pole switch allows you to control two separate circuits using the same switch, while a three-way switch allows you to control a single circuit from two different locations. A double-pole three-way switch is able to integrate both of these functions into one.
Do I need a double pole switch?
If you want to switch a 240-volt circuit, you must interrupt both hot wires at the same time. That’s why you need a double-pole switch, which is technically one that controls two circuits.
How many switches do you need to construct a three-way switch circuit?
A 3-way switch circuit is always comprised of two 3-way switches that control light(s) or device(s) from two different locations.