Three Way Light Switch Wiring Diagram

The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch.

Three way light switch wiring diagram.

Jan 24 18 02 09 pm. Three way switches have become very popular because it adds convenience and ease to lighting in large rooms hallways and staircases. This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit. At a glance 3 way switches look the same as the common single pole switch but instead of having only two screws on which to make your connections they have two connections on one side and one on the other.

Connect the blue wire with the brown slewing coming from the light to the l2 terminal together with the 3 core earth cable grey wire. For the instructions below we re assuming that you are converting an existing 2 way switch to a 3 way version by changing the current single switch and. At each switch in the above 3 way switch wiring diagram the black wire gets connected to the common copper or black screw. A three way switch is fundamentally different in its operation from a regular two way switch.

Switched outlet wiring diagram. Wiring diagram 3 way switch with light at the end in this diagram the electrical source is at the first switch and the light is located at the end of the circuit. Sometimes it is handy to have an outlet controlled by a switch. First run a 2 wire cable from the wall power to the black screw on 1 of the switches.

The black wire from the other 3 way gets connected to the line black wire. The line white neutral wire gets connected to the light fixture. In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. In this diagram the incoming hot wire attaches to the first switch s common dark colored terminal.

Depending on the current setup and the fixture you re wiring the switch into you may also need some additional wire nuts to create secure connections to your home s existing wiring. The black and red wires between sw1 and sw2 are connected to the traveler terminals. This cable consists of three cores brown grey and black which are all line colours and an earth wire. Jan 24 18 02 26 pm.

Knowing how to wire a three way lighting switch comes down to understanding the operation of this contraption. To wire a 3 way light switch you ll need 2 3 way light switches 2 2 wire non metallic cables 1 3 wire non metallic cable and 2 6 inch grounding wires. 3 way light switch wiring diagram see below. Wiring a three way switch happens with the use of the 3 core earth cable.

Connect the line brown wire coming from the light together with the 3 core earth cable black wire in to the l1 terminal of the two way switch. Three wire cable runs between the switches and 2 wire cable runs to the light. You must completely forget about the notion of a switch being a simple open closed circuit and look at the diagram of the circuitry of this modern alternative. 3 way switch wiring diagram depicting all wires in the ceiling junction box.

Want to turn a lamp on with a light switch. Then connect the 2 switches by splitting the 3 wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch. Finally connect the 3 core earth.