joako Premium Member join:2000-09-07 /dev/null |
joako
Premium Member
2012-Dec-9 9:17 pm
3 or 4 gang electrical box.Where can I buy a 3 or 4 gang metal eletrical box? I went to Home Toped and they only have 1 or 2 gang boxes. They have 3 or 4 gang but they are plastic and only have outlets for romex, I need to mount it exposed with condiut. I am finding some online, but the prices seem absurd, e.g.: » www.toolking.com/raco-68 ··· ang-each |
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kherr Premium Member join:2000-09-04 Collinsville, IL |
kherr
Premium Member
2012-Dec-9 9:20 pm
The metal ones I have used in the past, the sides come off and you can put together how many you want to. Once I made a 12 gang box. |
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John Galt6Forward, March Premium Member join:2004-09-30 Happy Camp |
to joako
Like kherr said...use these: » www.amazon.com/RACO-689- ··· 078S72D0You should be able to find them at your local big box store. |
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to joako
Any genuine electrical supply house will have them by the case if you wanted that many. Lowe's Depot and such only have the faster-moving stuff more likely to be used DIY.
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joako Premium Member join:2000-09-07 /dev/null |
to John Galt6
Can you use those with only 2 screws? Or does each box need to be screwed to the wall? |
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nunyaLXI 483 MVM join:2000-12-23 O Fallon, MO ·Charter
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to joako
You say surface mount? Why not just put two 1900 boxes next to each other with a close nipple? Total cost: $2.00
The gangable masonry boxes will work, but they aren't really meant to be surface mounted. They are meant to be flush mounted in - masonry.
You can get a 4 gang surface box which is essentially 2 1900 boxes, but expect to pay out the wazoo. |
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John Galt6Forward, March Premium Member join:2004-09-30 Happy Camp |
said by nunya:You say surface mount? Why not just put two 1900 boxes next to each other with a close nipple? Total cost: $2.00 I didn't notice the surface mount requirement... But yeah, what nunya said...two 4square boxes with a close nipple between them and raised industrial covers would look fine. » tinyurl.com/ctrcvweMuch cleaner than the other solution offered. |
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jack bGone Fishing MVM join:2000-09-08 Cape Cod
1 recommendation |
jack b
MVM
2012-Dec-10 3:33 am
A box spacer nipple is the proper way to go. » goo.gl/CsVRb |
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to joako
If you're doing metal special order stuff, yeah, you're going to pay. Raco 697 (3) or 698 (4) » www.hubbellcatalog.com/r ··· p?PN=698Wiremold V5744-3 (3-gang only, I believe, and you would need a 700 KO to round conduit adapter) » www.legrand.us/wiremold/ ··· nder=pdf |
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to joako
said by joako:Can you use those with only 2 screws? Or does each box need to be screwed to the wall? You can use only two screws to mount the one side to the stud. Though if you're going 4-gang, you may want to add some more support, though it might not be necessary. Easiest way is a 2x4 cross piece under it, attached to the studs on either side. You can buy those at any decent hardware store. They're called "gangable" boxes and are only slightly more expensive than the non-gangable. You'll see the screws on the top and bottom of each side. You take those out, put two boxes together, and put those screws back. The screws hold them together. Repeat until you've put together as many as you need. |
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joako Premium Member join:2000-09-07 /dev/null |
joako
Premium Member
2012-Dec-15 11:01 pm
So how bad did I do? I did not use the nipple because I wasn't sure how it could attach properly. It seems more designed for those outdoor boxes with threads. I used Romex cable I had, but I removed the outer insulation. How many code violations is that? Finally, I don't understand why this is but the last 2 photos are right before I wired everything to the existing outlet. The circuit breaker is turned off and this single outlet was the only thing on it. But the multimeter reads 7 volts and the AC voltage detector detects voltage. |
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sk1939 Premium Member join:2010-10-23 Frederick, MD ARRIS SB8200 Ubiquiti UDM-Pro Juniper SRX320
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sk1939
Premium Member
2012-Dec-15 11:22 pm
It just means that there is current on the neutral/ground conductor. Why I'll let someone else explain.
As far as the nipple goes, if it's the one pictured it's the correct one. The boxes are crooked because you didn't mount them level (side effect of one screw and slightly bent conduit), as a result they don't look quite even. |
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jack bGone Fishing MVM join:2000-09-08 Cape Cod |
to joako
Does the conduit run continuously all the way back to the panel, or is it just a riser on the wall? |
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joako Premium Member join:2000-09-07 /dev/null |
joako
Premium Member
2012-Dec-18 2:37 am
No it doesn't go direct to the panel. The neutral is probably shared with another circuit. |
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jack bGone Fishing MVM join:2000-09-08 Cape Cod |
jack b
MVM
2012-Dec-18 6:14 am
Then the ground is useless as tits on a bull. |
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ropeguru Premium Member join:2001-01-25 Mechanicsville, VA |
ropeguru
Premium Member
2012-Dec-18 8:44 am
Which brings up another question, if the conduit does not go back to the panel, and he has THHN running through the conduit, what kind of wire does he have going back to the panel?
Is there a junction box at the top of the conduit that ties the THHN to romex that goes back to the panel? If so, then the ground the way he has it might be ok. I would hope that he does not have the THHN going back to the panel with no conduit. |
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alkizmo join:2007-06-25 Pierrefonds, QC |
to jack b
said by jack b:Then the ground is useless as tits on a bull. While I've read people say this kind of conduit isn't good enough for using as grounding conductor, it might run to another junction box with romex feeding it and grounding it. He can test if the ground works by using the multimeter connected to the hot and ground. |
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nunyaLXI 483 MVM join:2000-12-23 O Fallon, MO ·Charter
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nunya
MVM
2012-Dec-18 4:43 pm
EMT is a fine ground and perfectly acceptable. Some people pull an extra ground as a "backup". It's not required. I've seen plenty of EMT runs "broken" either by abuse or expansion. When the EMT is broken, no ground. It's really a judgement call. There are situations where I never bother with a ground wire in metallic conduit.
I was looking at the pictures that the OP posted. I don't care for the wiring job. There shouldn't be 2 ground wires under one screw. I also don't like using devices as "pass through", especially cheapo resi receptacles like the blue one. I probably would have nutted everything up. |
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jack bGone Fishing MVM join:2000-09-08 Cape Cod |
to alkizmo
I've used conduit as a ground, but I would be concerned with this outlet here, that there is no other ground tie, especially without seeing the rest of the wiring and how it's connected. |
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