Log in

View Full Version : How to wire multiple lights to one switch


billracer
Jan 22, 2010, 04:20 PM
How do you wire a circuit for five recessed lights between two three-way switches so that the lights can be dimmed?

WallyHelps
Jan 22, 2010, 06:00 PM
This (https://www.askmehelpdesk.com/electrical-lighting/wiring-multiple-lights-3-way-switch-358633.html) answer may help. Just be sure to buy 3-way dimmer switches, and not regular dimmers.

Also, your lights will probably be physically between the switches, so you can see in the diagram that you'll need to run a pair of wires between the switches themselves.

Hope this gets you started,
WallyH

billracer
Jan 22, 2010, 07:15 PM
This (https://www.askmehelpdesk.com/electrical-lighting/wiring-multiple-lights-3-way-switch-358633.html) answer may help. Just be sure to buy 3-way dimmer switches, and not regular dimmers.

Also, your lights will probably be physically between the switches, so you can see in the diagram that you'll need to run a pair of wires between the switches themselves.

Hope this gets you started,
WallyH

Thanks. The lights will be positioned between the switches. What I need is specific help on how to connect the various 14/3 and 14/2 wires from the first switch, through the five lights then to the second switch. The diagram provided has the lights beyond the switches rather than between them.

Bill

WallyHelps
Jan 23, 2010, 07:13 AM
I knew I shouldn't try to answer a question when I'm in a hurry. :o

I found this really cool website with diagrams for many situations. Your particular arrangement is here (http://www.electrical-online.com/3wayvariation6.htm). Just substitute 3-way dimmers for the 3-way switches.

I hope this helps.
WallyH

stanfortyman
Jan 23, 2010, 07:57 AM
Thanks. The lights will be positioned between the switches. What I need is specific help on how to connect the various 14/3 and 14/2 wires from the first switch, through the five lights then to the second switch.Why do it this way?? This is the difficult way to do it.
Just run 3-wire from switch to switch, and 2-wire from switch to light and light to light.

It is a very common DIY mistake to try and wire it the way you suggest. You think you are saving wire but all you are doing is making it harder.
Even pro's don't typically wire 3-ways that way.

billracer
Jan 23, 2010, 10:25 AM
Why do it this way??? This is the difficult way to do it.
Just run 3-wire from switch to switch, and 2-wire from switch to light and light to light.

It is a very common DIY mistake to try and wire it the way you suggest. You think you are saving wire but all you are doing is making it harder.
Even pro's don't typically wire 3-ways that way.

This sounds easier but I am still uncertain as to how to connect the two switches together. How would the feed hot (black) and neutral (white) at the first switch be connected? How would the 14/3 wires be connected at the two switches? I assume the 14/2 black and white wires from the first switch would connect to the black and white of each light, correct?

I truly appreciate your assistance.

stanfortyman
Jan 23, 2010, 10:41 AM
The diagram in the previous link is not legal. You must keep all conductors in the same cable or raceway. You cannot split them up into two cables.

This is the one you want:
http://www.electrical-online.com/Fall203.gif

billracer
Jan 23, 2010, 04:44 PM
The diagram in the previous link is not legal. You must keep all conductors in the same cable or raceway. You cannot split them up into two cables.

This is the one you want:
http://www.electrical-online.com/Fall203.gif

Thank you. The diagram is extremely helpful.

johnmprince
Jan 23, 2010, 10:05 PM
Only one switch can be a dimmer, one has to be a regular switch.

billracer
Jan 24, 2010, 06:03 AM
Only one switch can be a dimmer, one has to be a regular switch.

Thanks. Does it make any difference which switch is the dimmer?

johnmprince
Jan 24, 2010, 06:25 AM
No.

billracer
Jan 24, 2010, 06:58 AM
Thank You

WallyHelps
Jan 25, 2010, 05:27 AM
Only one switch can be a dimmer, one has to be a regular switch.
Oops... I should have caught this. Either switch can be the dimmer. The other must be a 3-way switch.

Double-oops... I didn't see there was a second page of replies. :o