How To Wire A 4 Way Light Switch

My old 4 way light switch broke.

How to wire a 4 way light switch. How to wire four way and three way switches with helpful wiring diagrams. A 4 way switch has 4 terminals or poles. Turn off the. If a light switch fails to function you should replace it.

How to wire a 4 way switch. The key to 4 way switch wiring. Power from light fixture to light 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.

Bare or green ground wires are spliced together with a pigtail or two and then connected to the metal switch box with a 10 32 machine screw and to the green screw on the switch. The new switch has 4 terminals two on either side top and bottom. When the switch is operated current will either travel straight through or crisscross. Two wire cable is run from the light to sw1 and 3 wire cable runs between the three switches.

Sometimes the switch wiring connection diagram is printed on the inside of the 4 way switch packaging box see example below. The two wiring diagrams above are of a 3 way switch setup and the same basic setup with a 4 way light switch added. If the switch doesn t have the words on and off embossed on its body and it s the center switch of three switches that control a single light or receptacle it s a four way switch. This diagram illustrates wiring for a 4 way circuit with the electrical source at the light fixture and the switches coming after.

The source neutral wire is connected directly to the light fixture and the hot is. Free quick start guide here. More about wiring a 4way switch. Study the 4 way switch and the manufacturer s directions.

4 way switch wiring with light first. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch. I bought a new switch. This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides.

Wiring four way and three way switches. To replace a four way switch follow these steps. First of all we need to go over a little basic terminology on switches. Two terminal poles are labeled in and two are labeled out pairs of wires called travelers will connect to each side.

Wiring a three way switch circuit is one of the more complex electrical jobs that a homeowner can attempt. Do you need a 3 way switch wiring diagram. Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit.