Fishing and terminating mc cable

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mdshunk said:
They just have 1/2 and 3/4 knockouts. I'd think you ought to be able to use them for whatever you want to.
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Right, but isn't there a metal plate in between the KO's to keep the bonding intact?

I suppose I could just look one up. :roll:
 
peter d said:
Right, but isn't there a metal plate in between the KO's to keep the bonding intact?

I suppose I could just look one up. :roll:
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No, but most old work situations are only going to have one cable anyhow. Two MC's are pretty rough to get back in the wall if you have one in each end. If you need two, you're probably going to use a duplex connector, then the bonding would remain in tact.
 
peter d said:
Right, but isn't there a metal plate in between the KO's to keep the bonding intact?

I suppose I could just look one up. :roll:
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The Arlington In-boxes that I have used don't have a metal plate to ensure bonding, so I don't think they are listed for MC cable.

Chris
 
raider1 said:
The Arlington In-boxes that I have used don't have a metal plate to ensure bonding, so I don't think they are listed for MC cable.
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Since when does a box have to be listed for a particular wiring method. Since never...

If you only have one cable, it doesn't matter anyhow. If you need two, use a duplex connector. So far, this is the only box that I've found that you can compliantly use in old work rated assemblies without having to do a pretty serious repair on the wall.
 
mdshunk said:
No, but most old work situations are only going to have one cable anyhow. Two MC's are pretty rough to get back in the wall if you have one in each end. If you need two, you're probably going to use a duplex connector, then the bonding would remain in tact.
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Yeah, I just looked it up and I see that now. For some reason I had it in my mind that they made one with internal clamps for MC cable...maybe it wasn't Arlington's product I'm thinking of?? Maybe I'm all wet? Yeah, that's it.....
 
mdshunk said:
Since when does a box have to be listed for a particular wiring method. Since never...
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What about a regular plastic nail on box? Surely those are not listed for anything other than non-metallic wiring methods.
 
peter d said:
What about a regular plastic nail on box? Surely those are not listed for anything other than non-metallic wiring methods.
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Maybe, but they also don't feature knockouts, typically. Now you're gonna make me look up what the In-Boxes are listed under. :)
 
mdshunk said:
Since when does a box have to be listed for a particular wiring method. Since never...
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I agree and think this issue is covered by 314.3 Exception 1 if you really wanted to enter MCs into the box.
 
iwire said:
I agree and think this issue is covered by 314.3 Exception 1 if you really wanted to enter MCs into the box.
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Well there you go again, you make everything simple to understand by quoting code. :D
 
Okay, I said the product wrong. I said In-Box, but I meant "One-Box". The base product part number is F101.

new-F101.jpg


They are here in the UL Online Certifications Directory:
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=QCMZ.E170558&ccnshorttitle=Nonmetallic+Outlet+Boxes&objid=1074114804&cfgid=1073741824&version=versionless&parent_id=1073991695&sequence=1

They are under QCMZ in the General Guide, for nonmetallic outlet boxes:
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?&name=QCMZ.GuideInfo&ccnshorttitle=Nonmetallic+Outlet+Boxes&objid=1074114790&cfgid=1073741824&version=versionless&parent_id=1073991695&sequence=1

It does say, "A box nominally 2-1/4 by 4 in. or smaller is intended for one or more nonmetallic sheathed cables to enter through a single or multiple stage knockout opening.", but that language is just to clear up the fact that multiple NM's can enter though a single knockout.
 
peter d said:
Well there you go again, you make everything simple to understand by quoting code. :D
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Well not really sure what would happen with the standard nail on boxes with built in NM 'clamps' that you brought up

I think the labeling on those may indicate NM only.
 
mdshunk said:
Since when does a box have to be listed for a particular wiring method. Since never...

If you only have one cable, it doesn't matter anyhow. If you need two, use a duplex connector. So far, this is the only box that I've found that you can compliantly use in old work rated assemblies without having to do a pretty serious repair on the wall.
Click to expand...

I apologize for using the term "listed" for a particular wiring method. What I ment to say is that with the design of the arlington in-box you could not use multiple MC cables.

Chris
 
raider1 said:
I apologize for using the term "listed" for a particular wiring method. What I ment to say is that with the design of the arlington in-box you could not use multiple MC cables.

Chris
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Sure you could. You could use a duplex connector for two. The box has three knockouts. If you wanted to go hog-wild, you could use a duplex connector in each knockout, put a bond-bushing on all three, and connect them up, for a total of 6 mc's .
 
mdshunk said:
Sure you could. You could use a duplex connector for two. The box has three knockouts. If you wanted to go hog-wild, you could use a duplex connector in each knockout, put a bond-bushing on all three, and connect them up, for a total of 6 mc's .
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But then you would have to surface mount it. ;)
 
peter d said:
But then you would have to surface mount it. ;)
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Yeah, but I was just being extreme to make a point. One duplex connector is all you could manage to get in the wall. I had a few of those 45-degree duplex connectors a while back. I wonder if they still make those? I bet they'd work even better. There is a KO dead centered in the back you could use a right angle connector in, but conductors coming in the back make for a tough makeup, in my opinion.
 
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LLSolutions said:
what about just using a 90 connector into the back k/o?
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Yeah, that's viable, but scroll back a couple posts:

mdshunk said:
...There is a KO dead centered in the back you could use a right angle connector in, but conductors coming in the back make for a tough makeup, in my opinion.
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