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. They all must be between the two 3 way switches.
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Switch 4 way wiring diagram. 3 way switch wiring diagram depicting all wires in the ceiling junction box. Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit. Watch the 4 way switch video below and pay attention. This is the wiring for a dimmer in a 4 way circuit. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. Study the 4 way switch and the manufacturers directions.
The diagrams below show the conventional wiring for 3 way switches in a 4 way configuration. When the switch is operated current will either travel straight through or crisscross. A 4 way switch is always placed in between two 3 way switches. 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. Three wire cable runs between all the switches and 2 wire cable runs to the light. If more than three switches are needed simply place more 4 way switches between the three way switches.
To make this circuit work a 3 way dimmer can be used in place of one or both of the standard 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. 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. More 4 way switch wiring diagrams four way switch wiring schematic. First of all we need to go over a little basic terminology on switches.
You can have an indefinite number of 4 way switches in a circuit. 4 way switch wiring 4 way switches provide switching from three or more locations. 4 way dimmer switch wiring diagram. If you understand how to wire a 3 way switch youll have no issues with a 4 way switch. Unfortunately not all 3 way switches are wired the conventional way. 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.
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. 4 way switch wring diagram. A 4 way switch has 4 terminals or poles. Below is another method for wiring 4 way switches. Below is a conventional wiring diagram for a 4 way switch configuration.
I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides.
Gallery of Switch 4 Way Wiring Diagram
