Three Way Switch Wiring Diagram Two Lights. The two wire line cable goes into one switch box and the two wire load cable goes into the other switch box. 3 way switch wiring diagram.
Use black and red wires to connect traveler or brass colored terminals of the first switch and the second switch. Wiring a 3 way switch with multiple lights in this circuit two light fixtures are shown but more can be added by duplicating the wiring arrangement between the fixtures for each additional light. 3 way switch wiring diagram multiple light double electrical wiring diagram light switch wiring 3.
Take a closer look at a 3 way switch wiring diagram.
The two wire line cable goes into one switch box and the two wire load cable goes into the other switch box. A three conductor cable with a ground is then installed between the two 3 way switch boxes. One is the grounding screw that is green. Usually the third wire passes the middle intermediate switch but is joined in a separate terminal block.