Thread: how to feed another switch from a switch question

1. Junior Member
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how to feed another switch from a switch question

I have 3 switch box. 1 switch is a 3way, 1 switch is a 4way, 1 switch is a single pole. I need to take a feed from either the 4 way or 3 way to feed the single pole and another single pole in the box next to it. what wire and from wich switch to use for the feed?

2. Re: how to feed another switch from a switch question

Not knowing what wires you have it is impossible to answer your question other than to say none of the wires on a 4-way are a constant hot.

Jack

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Re: how to feed another switch from a switch question

gotcha- are any wires on the 3 way constant hot?
this is a middle run box...
feed comes into first box has this 3 way and a 4 way, then this box has the 3way a 4 way and a single then this 3way goes to the light......

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Re: how to feed another switch from a switch question

Originally Posted by gwilkrrs
gotcha- are any wires on the 3 way constant hot?
this is a middle run box...
feed comes into first box has this 3 way and a 4 way, then this box has the 3way a 4 way and a single then this 3way goes to the light......
The only place you can obtain power for another circuit is from the common (sometimes a black screw) on the 3 way in the first box. And, the neutral from the same cable as the hot.

5. Re: how to feed another switch from a switch question

You will need to test the common screw on the 3-ways with a meter or test light. One will have a constant regardless of the switch position, the other will be hot only when the light is turned on. You will still need a neutral to what ever the new switch is feeding.

Jack

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Re: how to feed another switch from a switch question

THANKS! I will try this

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Re: how to feed another switch from a switch question

ok- so here it is........................
got it on above box feed here is the next delema. so the final box with the 4 way switch I am trying to get a feed out of for an outside light...... so I grabbed the wire and hooked it up and it works.... when the 3 way switch in the box prior is on the ext light doesn't work- 3 way off ext light is on?

question- can I feed a light from a 4way? the 4 way circuit is this..... feed to switch1, switch 1 to switch2, switch2 to switch3, switch3 to light. I want to pull a feed off switch3

8. Re: how to feed another switch from a switch question

No. A 4-way switch only has travelers attached to it. See if this helps

The only place in this picture that you can pick up a Hot and a Neutral is at SW1
Jack
Last edited by JLMCDANIEL; 10-01-2013 at 10:44 PM.

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Re: how to feed another switch from a switch question

Originally Posted by gwilkrrs
ok- so here it is........................
got it on above box feed here is the next delema. so the final box with the 4 way switch I am trying to get a feed out of for an outside light...... so I grabbed the wire and hooked it up and it works.... when the 3 way switch in the box prior is on the ext light doesn't work- 3 way off ext light is on?

question- can I feed a light from a 4way? the 4 way circuit is this..... feed to switch1, switch 1 to switch2, switch2 to switch3, switch3 to light. I want to pull a feed off switch3
The final switch must be a 3W if it feeds the light.

And, any single screw, on it, will have power only when all the other switches are switched a certain way, as you've already discovered. Sorry.

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Re: how to feed another switch from a switch question

looks like I will pull a feed up from the receptacle below the switch for the outside light.....................

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