Do you need a 3 way switch wiring diagram. 4 way switch wiring with light first.
Leviton 20 Amp 4 Way Preferred Toggle Switch White
Wiring a 4 way light switch. 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. If additional 4 way switches are needed they will also go between the 3 way switches. If more than three switches are needed simply place more 4 way switches between the three way switches. This diagram illustrates wiring for a 4 way circuit with the electrical source at the light fixture and the switches coming after. 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. How to wire a 4 way switch.
Power from light fixture to light switch. First of all we need to go over a little basic terminology on switches. 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 black line wire connects to the common terminal of the first 3 way switch. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch. Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit.
The two wiring diagrams above are of a 3 way switch setup and the same basic setup with a 4 way light switch added. 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. Two wire cable is run from the light to sw1 and 3 wire cable runs between the three switches. 4 way switch wiring comes in real handy when you would like to control a light fixture from more than two locations. 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.
This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides. The source neutral wire is connected directly to the light fixture and the hot is. A 3 wire nm connects the traveler terminals of the first 3 way switch and the first 4 way switch. 4 way switch wiring 4 way switches provide switching from three or more locations.
Gallery of Wiring A 4 Way Light Switch
