4 Way Light Switch Schematic. One ground and 4 circuit terminals divided into two matching pairs called travelers. The first switch 3 way travelers brass color connect to one pair of the second switch 4 way travelers black or brass color. A 4 way switch has five terminals.
All four terminals are always brass in color. Do you need a 3 way switch wiring diagram. A four way switch is added when there are more than two switch locations operating the same light. The schematic diagram below shows how all four way switches are wired.
The switch can be used to control the electricity supplying lights from three locations.
Four way switch wiring schematic. In some countries the four way is called an intermediate switch. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. A 4 way switch has five terminals. One ground and 4 circuit terminals divided into two matching pairs called travelers.