It has 4 terminals or poles and consists of two 3 way switches that are modified. Click here to access note.

Ev 2197 Four Way Switch Light Wiring Diagrams Wiring Diagram
Wiring diagram for a four way light switch. In the diagrams below the first switch 3 way common terminal connects to line voltage. To view it at full size click on the diagram. This diagram illustrates wiring for a 4 way circuit with the electrical source at the light fixture and the switches coming after. A four switch configuration will have two 3 way switches one on each end and two 4 way switches in the middle. I bought a new switch. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.
How to wire a 4 way switch. Power from light fixture to light switch. The new switch has 4 terminals two on either side top and bottom. The 4 way is used when you want to control the light or lights from two or more locations. Look for 4 way switch wiring diagram or step how to wire a four way light switch electrical circuit a 4 way switch is a double pole double throw dpdt switch. Two wire cable is run from the light to sw1 and 3 wire cable runs between the three switches.
How to wire four way and three way switches with helpful wiring diagrams. The first switch 3 way travelers brass color connect to one pair of the second switch 4 way travelers black or brass color. The key to 4 way switch wiring. More about wiring a 4way switch. Do you need a 3 way switch wiring diagram. My old 4 way light switch broke.
This diagram is a thumbnail. The switch can be used to control the electricity supplying lights from three locations. For complete instructions on wiring a basic 4 way switch see our wiring a 4 way switch article. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. 4 way switch wiring with light first. Wiring four way and three way switches.