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Three pole light switch.
Three way switches control a light fixture from two locations in a room.
After disconnecting all the wires from the switches and from the switched outlet s turn the power on and test the wiring at the outlet.
If you have a split outlet follow the same 3 way switch troubleshooting as with a light fixture except you will need to determine which outlet is always on.
Whereas a single pole switch has on and off markings a three way switch doesn t.
This is known as the common screw and it s usually black instead of brass or silver.
For example a long hallway or stairway might use a pair of three way.
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Single pole and three pole switches look the same when installed but are used for different purposes.
Closer inspection reveals that while a single pole switch has two terminals a three.
Three pole or three way switches are used to control one or more lights or fixtures from multiple locations such as the top and bottom of a flight of stairs.
That s because the three way switch is used in conjunction with another three way switch to power a single light fixture and turning the light fixture on and off may require different lever positions.
The hot wire leading from the 3 way switch circuit.
Wall switches used to control ceiling light fixtures or other fixtures come in three types.
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Wiring a 3 way light switch.
Another type is the four way switch which is used in conjunction with two three way switches to control lighting from more than two locations.
A three way light switch is different than a traditional single pole light switch as it contains an extra screw to connect an extra wire.
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Most common is the single pole switch the type used to control a light fixture from a single location the next most common is the three way switch which is commonly used to control a light fixture from two different locations.
Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram.
The three way switch is a variation of the standard single pole switch which controls a light only from one location.
