Wiring Up A Double Light Switch. Feed a length of 14 3 type nm cable or 12 3 if you re connecting to 12 gauge wire between the two boxes. To switch from two locations youll need 2 two way switches and wire them together in a particular way.
The 14 3 cable has three insulated conductors. Turn the power back on to find the feed wire if you don t already know which one it is. White black and red plus a bare ground wire.
If your wires are not.
Some brands of light switch may have slightly different labeling on the terminals such as c l1 l2 or even l1 l2 and l3. Connect the wires to the new 3 way switches with ground screws using one of the two wiring diagrams fig. The source neutral wire is spliced to the neutral on the receptacle half of the combo device and to the white cable wire running to the light. You re going to need to test the wires now and if they are.
