1

My "power in" box has its black/white and ground and also the three wire cable( black /white /red and ground) and also the first light wires ( black/white). how do I wire this.

It is going to two lights-- the first light is pretty simple - just black and white-- ends at fixture--- also the cable feeding light # 2
and then moving on to the second three way box.
It seems I have an extra black wire in the initial "power in" box...

Do I hook the black power in with the black cable and let the current circulate?
or attach the power in to the dark screw. and then what do I do with the other two black wires? black cable to black first light? white cable to single light screw side,( as traveler) and red to double screw light screw side?

I have seen a couple photos and nothing is crystal clear.

2

Based on my understanding of what you have described, I believe you are dealing with a dead-end 3-way switch setup with what is known as an extended switch leg. Translation: all junctions are made in the first 3-way switch box.

Your questions/guesses on how to wire it are not exactly clear. I recommend following this wiring diagram. Please clarify if this wiring diagram does not apply to what you have described.

Wiring Diagram

enter image description here

Circuit Example

enter image description here

  • well I have way more wires than that diagram-- the first box basically has three black three white a red and 3 grounds.... – dina Aug 20 '15 at 20:26
  • 1
    @dina the provided diagram & photo show 3 blacks, 3 whites, and a red in the first box. Grounds are implied. – mjohns Aug 21 '15 at 0:37
  • 1
    This setup may violate 404.2(C), depending on where the switches are located, and which code version you're following. – Tester101 Aug 21 '15 at 3:25
  • Yeah, you'd need to use /4 wire to wire up the loop under the 2014 (i.e. current) NEC, with a "dead end" neutral being provided all the way out to the furthest switch. – ThreePhaseEel Aug 23 '15 at 1:16

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.