4 Way Switch Wiring Diagram 14 3
I did not include grounding conductors on the 4 way switch wiring diagrams in order to keep them simple.
4 way switch wiring diagram 14 3. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. However for efficiency and lower wire expense you may want to replace one of the existing 3 way switches with the 4 way and add another j box for the new location for the 3 way attached via 14 3. One ground and 4 circuit terminals divided into two matching pairs called travelers. This is the 3 wire cable which you must have to wire a 3 way light switch.
Several diagrams are included here that can be used to map 4 way and 3 way lighting circuits depending on the location of the source in relation to the switches and lights. See tables 314 16 a b. The switch leg from one light is run to the first 3 way and a switch leg from another light is run to the other 3 way. The switch legs are at both ends.
A 4 way switch is always placed in between two 3 way switches. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. 4 way switch wring diagram. Staircase wiring 4 two way switch one bulb holder jina wiring by electric guruji.
They all must be between the two 3 way switches. The exact cable you use depends on the gauge of the existing wiring in the rest of the circuit but in most cases the correct cable will be either 12 3 or 14 3. In any case as long as you realize that only the two travelers between 3 ways are switched by the 4 way you should be able to figure out the rest. You can have an indefinite number of 4 way switches in a circuit.
I have a diagram for this light switch wiring method on my 3 way switch page. The wiring diagrams on this page make use of one or more 4 way switches located between two 3 way switches to control lights from three or more points. How to connect 3 and 4 way switches easy wiring hardware boy. If you understand how to wire a 3 way switch you ll have no issues with a 4 way switch.
A 2 wire 14 2 or 12 2 is used as travelers between each switch from the first 3 way to the 4 way and from the 4 way to the 2nd 3 way.