Wiring 3 Way Switch 4 Lights Diagram. At times the cables will cross. When you make use of your finger or the actual circuit along with your eyes it is easy to mistrace the circuit.
One trick that i use is to print a similar wiring picture off twice. Electricians call the continuous hot wire the line wire. Two wires between each switch.
Here are some wiring cases.
Usually the third wire passes the middle intermediate switch but is joined in a separate terminal block. Four way switch wiring schematic. The steps above describe installing a 3 way switch and provide a 3 way switch diagram utilizing one light fixture. Print the electrical wiring diagram off and use highlighters in order to trace the signal.