I plan on running a 240 volt circut on a 30 amp switch, I plan on using 10/3 cable and the total run will be maybe 90 feet. My question is I want three 240 volt outlets in series one 20 feet from the panel one40 feet and one about 90 feet. Can I run these in series ie: three outlets on the same line only one would be in use at a time, as I want three different places in the shop for the welder/plasma cutter etc.. Compressor would be on it,s own dedicated circuit. I don't wish to have three 30 amp 240 volt separate breakers and circuits? thanks bobbycoke
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220 volt wired in series????
- Thread starter bobbycoke
- Start date
Gooch
Well-known member
I plan on running a 240 volt circut on a 30 amp switch, I plan on using 10/3 cable and the total run will be maybe 90 feet. My question is I want three 240 volt outlets in series one 20 feet from the panel one40 feet and one about 90 feet. Can I run these in series ie: three outlets on the same line only one would be in use at a time, as I want three different places in the shop for the welder/plasma cutter etc.. Compressor would be on it,s own dedicated circuit. I don't wish to have three 30 amp 240 volt separate breakers and circuits? thanks bobbycoke
you can do that, but what your talking about doing isn't series, that's parallel. You'll need atleast 4sq deep boxes, if not 4 11/16"'s to be able to pigtail two 10-3's out and have room for the outlet.
Gary S
Well-known member
You never wire electrical receptacles in series. If more than one receptacle is used on a circuit, they always are wired in parallel.
I don't know what the code says about more than one 240v receptacle on a single circuit. Somebody here knows that answer and can help you.
I don't know what the code says about more than one 240v receptacle on a single circuit. Somebody here knows that answer and can help you.
Gooch
Well-known member
You never wire electrical receptacles in series. If more than one receptacle is used on a circuit, they always are wired in parallel.
I don't know what the code says about more than one 240v receptacle on a single circuit. Somebody here knows that answer and can help you.
210.21(B)(2) states that as long as your maximum load doesn't exceed 24 amps, you are fine(assuming 30 amps is the size required for your welder)
Ign
Well-known member
This is done all the time w 110, but for some reason people think it's voodoo w 220.
It's not. You can do it.
Size your breaker and wire accordingly and you're fine. Your plan of #10 and 30A is of course fine.
Auto start devices (compressor) should have a dedicated circuit.
Since you're only using #10 you may be able to put both incoming and outgoing in the back of the recep and avoid wire nuts - not that wire nuts are bad. Different brands of receps will be more or less forgiving of this so don't be afraid to shop around.
It's not. You can do it.
Size your breaker and wire accordingly and you're fine. Your plan of #10 and 30A is of course fine.
Auto start devices (compressor) should have a dedicated circuit.
Since you're only using #10 you may be able to put both incoming and outgoing in the back of the recep and avoid wire nuts - not that wire nuts are bad. Different brands of receps will be more or less forgiving of this so don't be afraid to shop around.
Gooch
Well-known member
This is done all the time w 110, but for some reason people think it's voodoo w 220.
It's not. You can do it.
Size your breaker and wire accordingly and you're fine. Your plan of #10 and 30A is of course fine.
Auto start devices (compressor) should have a dedicated circuit.
Since you're only using #10 you may be able to put both incoming and outgoing in the back of the recep and avoid wire nuts - not that wire nuts are bad. Different brands of receps will be more or less forgiving of this so don't be afraid to shop around.
I have yet to see a recep. rated for 2 conductors under one screw.
Aceman
Well-known member
I have yet to see a recep. rated for 2 conductors under one screw.
GFCI's, spec grade receps can handle 2 per screw...
I have yet to see a recep. rated for 2 conductors under one screw.
devices with pressure plate type terminals can take 2 wires on each terminal, but only one on the ground
MrMark
Well-known member
Those aren't under the screw, though, like I think Gooch was talking about. At least they aren't under the screw to me. The screw draws the plates together making a pressure connection, with one wire inserted on each side. The wires are not under a single screw in a traditional sense.
Gooch
Well-known member
We're talking about 30A recep.'s the only ones i've seen all have a 'lug' style connection, that i havn't seen rated for 2 conductors.