Fabulous Old 3 Way Switch Wiring

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.

Old 3 way switch wiring. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. In a 3 way configuration the load wire should be connected to the l1 terminal of the brilliant control.

Setting up multiple brilliant controls on a multi way configuration. Traveler wires are interchangeable on each switch. Knowing how to wire a three way lighting switch comes down to understanding the operation of this contraption.

3 way switch wiring diagram depicting all wires in the ceiling junction box. The alternate 3 way switch wiring configuration california or west coast was used as a way to wire 3 way switches and be able to supply line voltage to either switch this configuration is no longer allowed as the neutral is not present in each switch box. A three way switch is fundamentally different in its operation from a regular two way switch.

3 way switches old house wiring showing 1 40 of 40 messages. This is the 3 wire cable which you must have to wire a 3 way light switch. At each switch in the above 3 way switch wiring diagram the black wire gets connected to the common copper or black screw.

Installing the brilliant control in 3 way and 4 way configurations. The wiring in the house is old and it is either knob and tube wiring or whatever came after that and before romex etc. It is usually a white wire.

Typical 3 way switch wiring nm cable. This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light switch. The black wire from the other 3 way gets connected to the line black wire.