It is a different color screw from the other two screw terminals. 4 way switch wiring comes in real handy when you would like to control a light fixture from more than two locations.
Wire A 4 Way Switch Diagram Wiring Diagram
4 way switch diagram power at switch. Sometimes there is only a switch wiring diagram printed on the inside of the 4 way switch package box. 4 way switch wiring diagrams this 4 way switch diagram 1 shows the power source starting at the left 3 way switch. One ground and 4 circuit terminals divided into two matching pairs called travelers. To view it at full size click on the diagram. A 3 wire nm connects the traveler terminals of the first 3 way switch and the first 4 way switch. These two wires are the travelers to the 4 way switch.
The white wire of the cable going to the switch is attached to the black line in the fixture box using a wirenut. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. 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. Update before i have to fire up paint and draw something see if this helps. A 4 way switch has five terminals. Power from light fixture to light switch.
Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. The black line wire connects to the common terminal of the first 3 way switch. The wiring connections on 4 way switches varies between manufacturers. For complete instructions on wiring a basic 4 way switch see our wiring a 4 way switch article. This 4 way switch diagram 2 shows the power source starting at the fixture.
Typical 4 way switch wiring nm cable in the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch. This diagram is a thumbnail. Will it work if i run power to the 4 way switch instead of one of the 3 way switches. I have a standard circuit with a 3 way switch on each end and one 4 way switch in the middle. Click here to access note.
The 4 way is used when you want to control the light or lights from two or more locations. How to wire a 4 way switch. Attach the black wire and white marked with blue wire going out of the box to the next switch to the bottom poles of the 3 way switch. The light is also connected to the 4 way switch. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. With 4 way switches you must read the manufacturers instructions or wiring diagram.
Do you need a 3 way switch wiring diagram. First of all we need to go over a little basic terminology on switches. This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides. The third wire the red will not be switched at the 4 way location but passes to the final 3 way switch.
Gallery of 4 Way Switch Diagram Power At Switch
