Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit. When the switch is operated current will either travel straight through or crisscross.
3 Way Switch Troubleshooting Diy
Switch 4 way wiring diagram. If you understand how to wire a 3 way switch youll have no issues with a 4 way switch. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. First of all we need to go over a little basic terminology on switches. How to wire a 4 way switch. Study the 4 way switch and the manufacturers directions. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired.
Below is a conventional wiring diagram for a 4 way switch configuration. Watch the 4 way switch video below and pay attention. 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. You can have an indefinite number of 4 way switches in a circuit. How to wire 4 way light switch and intermediate switch in this video we explain how four way intermediate switching works to connect a light fitting which is controlled with three or more light. They all must be between the two 3 way switches.
This is the wiring for a dimmer in a 4 way circuit. This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides. 3 way switch wiring diagram depicting all wires in the ceiling junction box. The electrical switch box that contains the line and load wires may need to be bigger than the other switch boxes especially if there are other wires going into the switch box. Unfortunately not all 3 way switches are wired the conventional way. A 4 way switch has 4 terminals or poles.
A 4 way switch is always placed in between two 3 way switches. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw. Two terminalpoles are labeled in and two are labeled out pairs of wires called travelers will connect to each side. To make this circuit work a 3 way dimmer can be used in place of one or both of the standard 3 way switches. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch. Three wire cable runs between all the switches and 2 wire cable runs to the light.
Below is another method for wiring 4 way switches. The diagrams below show the conventional wiring for 3 way switches in a 4 way configuration. More 4 way switch wiring diagrams four way switch wiring schematic. 4 way switch wiring 4 way switches provide switching from three or more locations. As you will see most 4 way switch wiring is placed between the wiring of two 3 way switches therefore a 4way switch is installed with two 3way. 4 way switch wring diagram.
4 way dimmer switch wiring diagram. If more than three switches are needed simply place more 4 way switches between the three way switches.
Gallery of Switch 4 Way Wiring Diagram
