20A 220V circuit - can you use 12/2 NMB?

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bjp_ne_elec

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Have to feed a 20A 220V A/C unit - and I know you can re-identify the white in certain situations. The situation I know you can, is when you have a feed and return situation on a switch - but what about for the A/C unit?

Thanks,

Bertt
 
bjp_ne_elec said:
Have to feed a 20A 220V A/C unit - and I know you can re-identify the white in certain situations. The situation I know you can, is when you have a feed and return situation on a switch - but what about for the A/C unit?

Thanks,

Bertt
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romex 10-2=white black

im curios too
 
Yes, in a cable type wiring method you may reidentify the white conductor.

There is NM cable available at a substantial upcharge with a black and red conductor with a ground, without white.
 
mdshunk said:
Yes, in a cable type wiring method you may reidentify the white conductor.

There is NM cable available at a substantial upcharge with a black and red conductor with a ground, without white.
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so do you have to identify the whie as a hot?

if so what section is that in?
 
mdshunk said:
Yes, in a cable type wiring method you may reidentify the white conductor.

There is NM cable available at a substantial upcharge with a black and red conductor with a ground, without white.
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Interesting. Who makes it?
 
mdshunk said:
Don't know, but it seems to always have a red jacket, no matter what gauge it is.
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C'mon, you're joking, right? You had me going there. I even went to the Southwire website to check. They don't make it.
 
celtic said:
I don't know who makes it, but the big box stores sell it...I laugh when people buy it.
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Never seen it at the big orange. I was there today spending large sums of money on NM 12-2 & 14-2. They lowered the price $8 bucks a 250 roll it seemed like a good idea to overload a cart with all they had left. And I only ran in to get a 2 gang blank plate. Anything to save a buck!
 
acrwc10 said:
Never seen it at the big orange.
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All the HO's and jacklegs bought it!

I have to buy a door sweep, so tom'row I'll be in Big Box - I'll try and remember to snap a pic or two.
 
celtic said:
I don't know who makes it, but the big box stores sell it...I laugh when people buy it.
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I've never seen it, but if anyone asks, tell them it's for use on DC circuits.
 
celtic said:
All the HO's and jacklegs bought it!

I have to buy a door sweep, so tom'row I'll be in Big Box - I'll try and remember to snap a pic or two.
Click to expand...

That would be interesting to see. Is it an issue with the NJ inspectors "east coast" thing ? Do they want to see Blk,Red NM over Blk,Wht being taped red?

What I haven't seen either is Blk,red,Blue with ground NM #12 or #14. I Could use some of that for those Fan,light,night light, units every one is putting in now. As it is we use two 2-wire NMs and reidentify one of the whites to blk.
 
acrwc10 said:
That would be interesting to see. Is it an issue with the NJ inspectors "east coast" thing ? Do they want to see Blk,Red NM over Blk,Wht being taped red?

What I haven't seen either is Blk,red,Blue with ground NM #12 or #14. I Could use some of that for those Fan,light,night light, units every one is putting in now. As it is we use two 2-wire NMs and reidentify one of the whites to blk.
Click to expand...


The do make 12/4 NM cable. It has blk,red,blu,white and a bare conductor. And a re-identified white conductor does not have to become red. It can be re-identified black, red, blue, orange etc. And there is no NJ requirement for black and red cable.
 
acrwc10 said:
What I haven't seen either is Blk,red,Blue with ground NM #12 or #14. I Could use some of that for those Fan,light,night light, units every one is putting in now. As it is we use two 2-wire NMs and reidentify one of the whites to blk.
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Isn't that a violation?
" As it is we use two 2-wire NMs and reidentify one of the whites to blk."
 
Thanks steve.

I had posted a thread about a fan (Fan, light, night light)....couldn't find it - but knew the end result.
 
peter d said:
C'mon, you're joking, right? You had me going there. I even went to the Southwire website to check. They don't make it.
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No, I'm not Peter. I've seen it with my own two eyes. Most recently was when I was touring a condo job that I didn't win the bid on.

Here's a picture of the stuff from a Canadian website, but they make it here in the US too ;)

http://www.nexans.ca/egy/equip/ProdPamphlets/housewireCSA_E.htm

NMD90HEATEX.jpg
 
mdshunk said:
No, I'm not Peter. I've seen it with my own two eyes. Most recently was when I was touring a condo job that I didn't win the bid on.
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Wow....OK.....I stand corrected. Although I have to say that is just plain weird. I can't see any reason to use it, but the red jacket is easy to identify. Still, I can't see paying the extra money for it.

Does Nexans make the stuff that you saw?
 
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