3 Way Switch Wiring Diagram Power At Switch

Wiring of 3 way light switches 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.

3 way switch wiring diagram power at switch.
Take a closer look at a 3 way switch wiring diagram.
Wiring diagram for 3 way light switch 1000 ideas about electrical wiring diagram on first time post take it easy on me folks.
Each 3 way switch in these examples are controlling the power source to the same load.

Wiring a three way light switch.
Pick the diagram that is most like the scenario you are in and see if you can wire your switch.
Wiring a 3 way switch with the power coming in through the light and flowing to the switches.

With a pair of 3 way switches either switch can make or break the connection that completes the circuit to the light.
This electrical wiring diagram shows power into light switch box 1 wire to light from switch box 1 and from switch box 1 to three way light switch box 2.
Two wire cable runs from the light to sw1 and 3 wire cable runs between sw1 and sw2.

Interested in a 4 way switch wiring diagram.
3 way switch wiring with light first.
A 3 way switch has three screws plus the green grounding screw.

Im wiring new construction in a garage and installing fluorescent controlled by 3 way switches.
In this diagram the source for the circuit is at the light fixture and the two switches come after.
Power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch.

The black line wire connects to the common terminal of the first 3 way switch.
Typical 3 way switch wiring nm cable.
Be sure to mark the white wire as noted so if any future repairs or replacement is needed whoever goes into the box will know it is marked as a hot wire.

This might seem intimidating but it does not have to be.
Fixture between two three way switches.
Traveler wires are interchangeable.

With these diagrams below it will take the guess work out of wiring.
The most important screw is the black one continuous hot and light feed wire goes on black screw traveler wires go on the brass screws 143 with ground or 123 with ground wire best to use between switches watch all videos below for.
Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit.

When wiring a 3 way switch circuit we will be using a 3 wire cable known as romex coming from the source such as the breaker box.
Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load.
3 way switch wiring diagram.

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.