4 Way Switch Wiring

To wire a 4 way switch start by turning off the circuit breaker for the room youre working in. T2 from that switch is wired to t1 on the second 4way and t2 connects to the travelers on sw2. Then connect the black wire coming from the fixture to the black wire going to the first 3 way switch.

4 way switch wiring

4 Wire Switch Wiring Diagram Wiring Diagram Schematics

Leviton 15 Amp Duplex Style Single Pole 3 Way Ac Combination

Typical Diagram For Wiring A Switch Wiring Diagram Meta

I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects.

4 way switch wiring.

First of all we need to go over a little basic terminology on switches.
4 way switch wiring with four switches.
For complete instructions on wiring a basic 4 way switch see our wiring a 4 way switch article.
Next connect the white wire coming into the box to the white wire on the fixture.

Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit.
4 way switch wire colorsthere is no standard for wire colors on 3 and 4 way switch travelersthe colors will vary depending on whether nm cable or conduit was used.
How to wire a 4 way switch.
A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.

The two 4 ways are located between the two 3 ways and the traveler wires run from sw1 to t1 on the first 4 way.
With nm cable the wire colors for travelers will be black and red using 3 wire cablewith conduit the wire colors for travelers could be any color.
Here two 4 way and two 3 way switches are used to control lights from four different locations.
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This diagram is a thumbnail.
The 4 way is used when you want to control the light or lights from two or more locations.
To view it at full size click on the diagram.
This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides.