4 outlets on 4 switches
#1
11-23-15, 11:51 AM
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4 outlets on 4 switches
We are putting 4 fans in our barn one over each horse stall and then at the end will be one always hot outlet set. I am of course using 12/3 on a 20 amp circuit. So I have 12/3 from the breaker to the gang box with all the switches then here is where I need help. Each switch needs to control one outlet set over a horse stall so we can turn the fans on stall by stall then the last outlet set is always hot hence the need for 12/3 and not 12/2. I know the extra hot wire will run all the way to the last always hot outlet set without touching any of the fan outlet sets so you can skip that part of the equation. My question is do I pigtail in the gang box with the switches to make 4 hot wires to each switch which then in turn goes to each outlet set. Also the neutral and ground should go to each fan outlet set and pigtail all ending at the always hot outlet set.
Last edited by Brian Zdunowski; 11-23-15 at 12:28 PM.
#2
11-23-15, 12:47 PM
Each switch needs to control one outlet set over a horse stall so we can turn the fans on stall by stall then
#3
11-23-15, 03:16 PM
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I also believe this is a good application for conduit rather than making 4 plus runs with NM cables. Think about it like this, to box 1 run 1 red, to box 2 run 1 blue, to box 3 run 1 brown and to box 4 run 1 purple. Now, run 1 white, 1 black and 1 green ground the full length of the conduit run stopping at box 5. Red, blue, brown and purple are switched wires. The white is neutral needed at each of the 5 boxes. The black is an always hot wire needed only at box 5. The green ground is needed at all 5 boxes.
#6
11-24-15, 07:03 AM
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I am sorry I wasnt clear I though switching from romex to THHN in PVC conduit was implied. My questions is mainly at the switch box an on the wiring including pigtails and yes the switches are all in one place to make it convenient.
#7
11-24-15, 08:19 AM
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A building that houses livestock, NM-b and metallic raceways are not allowed
I am sorry I wasnt clear I though switching from romex to THHN in PVC conduit was implied.
#8
11-24-15, 08:40 AM
I though switching from romex to THHN in PVC conduit was implied.
At the switch box black of power in is connected to the black THHN/THWN out and four pigtails. One pigtail goes to one side of each switch.Your switched hots out one to each switch. At the receptacle boxes the unused hots pass through without being cut. Neutral and ground are pigtailed to their respective connections at each receptacle.
#10
11-24-15, 05:41 PM
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Why is it that metallic conduit wouldn't be allowed?
#11
11-25-15, 06:10 AM
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The "emissions" and manure from live stock can be quite corrosive, that along with dust and moisture causes metallic raceways to corrode quite quickly.
First off this is the dumbest thing I have ever heard as 90% of the barns here have EMT and I have never seen them "corrode" as people dont leave their horse manure and urine sitting in the stalls. It is removed and placed in a manure bin out of the barn. I am not flaming you just setting you straight
Now newer built barns have PVC because it is considered a wet location and that and only that is the reason EMT is no longer used
First off this is the dumbest thing I have ever heard as 90% of the barns here have EMT and I have never seen them "corrode" as people dont leave their horse manure and urine sitting in the stalls. It is removed and placed in a manure bin out of the barn. I am not flaming you just setting you straight
Now newer built barns have PVC because it is considered a wet location and that and only that is the reason EMT is no longer used
#12
11-26-15, 07:42 AM
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Now newer built barns have PVC because it is considered a wet location and that and only that is the reason EMT is no longer used
Perhaps you should take a look at Art 547 of the NEC before trying to "set me straight".
