3 way light switch wiring diagram. Article summary wiring the switches installing the switches and light alternative wirings understanding common cable types community qa references a 3 way light switch allows you to control a light source from two separate points. 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. There are 2 variations of dead end 3ways. 2 way switch 3 wire system new harmonised cable colours 2 way switching 3 wire system old cable colours 2 way switching two wire control.
Extending the switch leg over to the common as shown in the photo above or extending the hot over to the common as described below. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. This diagram sh ows 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. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.
This arrangement is often found in stairways with one switch upstairs and one switch downstairs or in long hallways with a switch at either end. Fixture between two three way switches. Wiring a three way light switch is not a particularly difficult task there are only 3 connections to be made after all. Note that this configuration is easiest to do when utilizing the first method of 3 way circuits discussed previously in our wiring a basic 3 way switch article or diagram.
Line switch load switch 1 if your wiring is like the diagram below you can wire your smart switch in the box with line. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. Making them at the proper place is a little more difficult but still within the capabilities of most homeowners thats where understanding a wiring diagram can be of help. A dead end 3 way switch wiring method.
Although a 3 way is one of the hardest electrical circuits to figure out its also one of the most useful.