3 Way Light Switch Wiring Diagram Three. The diagram below will give you a good understanding of what this wiring consists of. Brass color for traveler terminals.
A three conductor cable with a ground is then installed between the two 3 way switch boxes. Three wires between the two end switches probably using 3 core and earth cable. This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit.
Three wire cable runs between the switches and 2 wire cable runs to the light.
3 switch 1 light control diagram 4 way switch switch by tech bondhon light control switch diagram. 3 way switch is a multiway switching or interconnection of two or more electrical switches to control an electrical load from more than one location. The black and red wires between sw1 and sw2 are connected to the traveler terminals. The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch.