1 circuit/2 gang 3 way switches- Does this look right?

Discussion in 'Electrical Forum discussion & Blog' started by cbailey, Apr 17, 2014.

  1. cbailey

    cbailey New Member

    Messages:
    1
    Location:
    WI
    Hi All-
    Would appreciate any feedback about the attached diagram.

    I'm not a homeowner working on a basement finish project and want to have my plans tight before submitting for a permit.

    Any guidance is much appreciated!

    Attached Files:

  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,026
    Location:
    Cave Creek, Arizona
    It looks good, but would look less like a "plate of spaghetti" if you had left the green wires out and just said everything will be grounded. In fact, if you use plastic devices, you will not be connecting the grounds to the boxes anyway.
  3. ActionDave

    ActionDave Electrician

    Messages:
    361
    Location:
    Colorado
    What you have will work but I would bring power directly to the switches in the bottom box, two wire switch leg to each set of lights out of the switch box and only run the three wire from switch to switch.
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,026
    Location:
    Cave Creek, Arizona
    quote; I would bring power directly to the switches in the bottom box

    That would be a personal preference, and might depend on the physical arrangement of the wires relative to the boxes.
  5. ActionDave

    ActionDave Electrician

    Messages:
    361
    Location:
    Colorado
    One more reason to do it besides personal preference is it is the easiest way to comply with recent code requirement to have a neutral at every switch. 2014 code has backed off on some of the locations but the rule still exists.
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,026
    Location:
    Cave Creek, Arizona
    quote; it is the easiest way to comply with recent code requirement to have a neutral at every switch.

    It is a "dumb" requirement, and it is only "easier" if it is "easy" to run a two wire to the switch location. In many instances that would require a 3 wire to the switch, it the leg is being dropped out of the fixture to the switch.
  7. ActionDave

    ActionDave Electrician

    Messages:
    361
    Location:
    Colorado
    I agree.
    Those instances are very rare when you are starting from scratch.
  8. bluebinky

    bluebinky Member

    Messages:
    408
    Location:
    Santa Clara, CA
    IMHO, it is only "sort of dumb". The way things are going, in a few years, a good light bulb may end up using not much more power than an electronic lighting control. In that case, having a neutral to power the control is probably better than relying on residual current through the bulb...
  9. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,026
    Location:
    Cave Creek, Arizona
    quote; Those instances are very rare when you are starting from scratch.

    Not in my experience. Quite often the power feeds to the light fixture in the ceiling, and then 2 wires are dropped to the switch to control it.
Similar Threads: circuit/2 gang
Forum Title Date
Electrical Forum discussion & Blog 12/4 to run constant and switched receptacles in 2 gang boxes Apr 2, 2014
Electrical Forum discussion & Blog Using grounding bar inside 3-gang metal outlet box Mar 14, 2014
Electrical Forum discussion & Blog 4 Gang Switch Box Wiring diagram Mar 30, 2013
Electrical Forum discussion & Blog 4 Gang Boxes - Ontario Nov 6, 2012
Electrical Forum discussion & Blog How to wire my gang box Feb 14, 2012

Share This Page