Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit. A 3 wire nm connects the traveler terminals of the first 3 way switch and the first 4 way switch.
3 Way Switch Troubleshooting Diy
Wiring a 4 way light switch. This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides. How to wire a 4 way switch. The black line wire connects to the common terminal of the first 3 way switch. While wiring a 3 way switch is good enough for a staircase or hallway wiring a four way switch is crucial for the addition of a third forth or more switches. Two wire cable is run from the light to sw1 and 3 wire cable runs between the three switches. While the physical location of the 4 way switch may be anywhere the electrical location of the switch is always between the two 3 way switches.
If more than three switches are needed simply place more 4 way switches between the three way switches. 4 way switch wiring comes in real handy when you would like to control a light fixture from more than two locations. If additional 4 way switches are needed they will also go between the 3 way switches. Do you need a 3 way switch wiring diagram. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. The source neutral wire is connected directly to the light fixture and the hot is.
Power from light fixture to light switch. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Typical 4 way switch wiring nm cable. First of all we need to go over a little basic terminology on switches. The two wiring diagrams above are of a 3 way switch setup and the same basic setup with a 4 way light switch added. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.
4 way switch wiring 4 way switches provide switching from three or more locations. 4 way switch wiring with light first. This diagram illustrates wiring for a 4 way circuit with the electrical source at the light fixture and the switches coming after. 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.
Gallery of Wiring A 4 Way Light Switch
