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Old 05-22-2009, 11:35 PM   #16
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Help with 3way/4way and lights


The two travelers go between the two 3-way switches those travelers can be cut any where along the run. A 4 conductor cable from the 4-way, one side of 4 way wired to the travelers going to switch 1 and the wires on the other side of the 4 way wired to the travelers going to switch 2.
Using the drawing above but the connection can be made any where along the traveler run.

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Old 05-23-2009, 12:30 AM   #17
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Help with 3way/4way and lights


yeah, Hayewe is right on. For some reason I couldn't get it out of my head that the 4-way was on the south wall. My mistake.
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Old 05-23-2009, 08:37 AM   #18
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Help with 3way/4way and lights


I probably should ask, for the above diagram where the existing traveler cable is cut anywhere, can two 2-wire cables be used for the 4-way switch instead of one 4-wire cable? Now they both come from the same place for example a junction box suggested by the small white square in the diagram. One 2-wire cable could be the out and back for one traveler and the other 2-wire cable could be the out and back for the other traveler while the neutral goes straight across from left to right in the J-box as shown.
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Old 05-23-2009, 10:48 AM   #19
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Help with 3way/4way and lights


Quote:
Originally Posted by hayewe farm View Post
The two travelers go between the two 3-way switches those travelers can be cut any where along the run. A 4 conductor cable from the 4-way, one side of 4 way wired to the travelers going to switch 1 and the wires on the other side of the 4 way wired to the travelers going to switch 2.
Using the drawing above but the connection can be made any where along the traveler run.
This is basically what I ment when I said. ..."Would the 4way hook up between 1st 3wy and first light via say black wire coming and going on one side of the switch and the red coming and going on the other side?"

The difference I guess is the Elec book I'm reading from has the power coming into the fist 3w at the bottom of the switch. Thanks Hayewe and Joed for making it clear now.
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Old 05-23-2009, 04:29 PM   #20
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Help with 3way/4way and lights


I been away from the PC for a day. The new drawing is correct.
The description posted from another forum is correct also since it looks one I posted.
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Old 05-23-2009, 07:00 PM   #21
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Help with 3way/4way and lights


Quote:
Originally Posted by AllanJ View Post
I probably should ask, for the above diagram where the existing traveler cable is cut anywhere, can two 2-wire cables be used for the 4-way switch instead of one 4-wire cable? Now they both come from the same place for example a junction box suggested by the small white square in the diagram. One 2-wire cable could be the out and back for one traveler and the other 2-wire cable could be the out and back for the other traveler while the neutral goes straight across from left to right in the J-box as shown.
You need 4 conductor it doesn't matter if its 4 singles, 2 two conductor, or 1 four conductor cable.
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Old 05-23-2009, 08:04 PM   #22
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Help with 3way/4way and lights


Quote:
Originally Posted by hayewe farm View Post
You need 4 conductor it doesn't matter if its 4 singles, 2 two conductor, or 1 four conductor cable.
Thanks for answering that hayewe, I was just getting on to see if it had been answered yet.

I Appreciate it.
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Old 05-24-2009, 02:10 AM   #23
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Help with 3way/4way and lights


Just out of curiosity, what is usually the configuration of the 4 way switches? One pair of travelers to either side, or is it top/bottom? I have I believe a Pass & Seymour "Standard" grade 4 way switch, and the 4 way the way its currently wired has to be in the "up" position for either one of the 2 3-ways to work. Both 3-ways work fine with the 4 way in the up position, but nothing works with the 4 way down.

It looks like the diagrams here show the traveler pairs on either side, not top/bottom. Is it different for the Pass & Seymour switches?

I don't mean to hi-jack this thread, but feel the question is related to the topic.
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Old 05-24-2009, 03:53 AM   #24
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Help with 3way/4way and lights


Quote:
Originally Posted by theatretch85 View Post
Just out of curiosity, what is usually the configuration of the 4 way switches? One pair of travelers to either side, or is it top/bottom? I have I believe a Pass & Seymour "Standard" grade 4 way switch, and the 4 way the way its currently wired has to be in the "up" position for either one of the 2 3-ways to work. Both 3-ways work fine with the 4 way in the up position, but nothing works with the 4 way down.

It looks like the diagrams here show the traveler pairs on either side, not top/bottom. Is it different for the Pass & Seymour switches?

I don't mean to hi-jack this thread, but feel the question is related to the topic.
I just check the wiring diagram you say 4 way if so the traveller pairs is incomming from either top or bottom screws not the side to side format so you may have to swap it by quarter turn once you get it it will work fine.

Merci,Marc
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Old 05-24-2009, 12:04 PM   #25
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Help with 3way/4way and lights


Unfortunately there is no rule for how the terminals are arranged on a 4 way switch.

Using an ohmmeter (or the ohms or continuity section of a multimeter) put one probe on one terminal. In one switch position you get continuity (or near zero ohms) to one other terminal. The terminal that does not get continuity in either switch position is the matching terminal for the terminal you put the first probe on when attaching a pair of travelers.
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Old 05-24-2009, 02:09 PM   #26
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Help with 3way/4way and lights


You have to remember that most drawings presented here are generic representations not actual unit wiring diagrams. For individual units you need the wiring sheet from the manufacturer.

Last edited by hayewe farm; 05-24-2009 at 02:13 PM.
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Old 05-24-2009, 02:36 PM   #27
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Help with 3way/4way and lights


Quote:
Originally Posted by hayewe farm View Post
You have to remember that most drawings presented here are generic representations not actual unit wiring diagrams. For individual units you need the wiring sheet from the manufacturer.
At least the 3way in the drawing shows the black screw where power comes into the switch and the two brass for the travelers...correct?
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Old 05-24-2009, 04:13 PM   #28
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Help with 3way/4way and lights


In that one drawing, yes. But that may not be the case with every drawing presented. We often take for granted that some basic electrical knowledge is present and posters have the original wiring diagrams for the individual units.
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Old 05-24-2009, 04:56 PM   #29
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Help with 3way/4way and lights


For anone new to 4-Way switches here is an easy to follow tutorial:
http://www.wfu.edu/~matthews/misc/switches/4WayStills.html
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Old 05-24-2009, 10:44 PM   #30
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Nice simple link PaliBob

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