covering knockouts

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S-117

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i have a situation where i cannot use a knockout plug.
My only option right now is to replace the panel with a new one or solder a plate around the hole.

obviously this isn't listed product to use as a cover, but is there something in the code that would allow me to do this?
I do not see this every being a problem, but hey, rules are rules
 
The hole closing device does not need to be listed. Here's the relevant section:

110.12 Mechanical Execution of Work. Electrical equipment shall be installed in a neat and workmanlike manner.
Informational Note: Accepted industry practices are described in ANSI/NECA 1-2015, Standard for Good Workmanship in Electrical Construction, and other ANSI-approved installation standards.
(A) Unused Openings. Unused openings, other than those intended for the operation of equipment, those intended for mounting purposes, or those permitted as part of the design for listed equipment, shall be closed to afford protection substantially equivalent to the wall of the equipment. Where metallic plugs or plates are used with nonmetallic enclosures, they shall be recessed at least 6 mm (1∕4 in.) from the outer surface of the enclosure.
Click to expand...
 
phatso86 said:
i cannot use a regular KO plug.
I cannot use one at all. it is not feasible in my situation
Click to expand...
Gasketed one earlier mentioned isn't exactly a "regular plug" though the through bolt still maybe leaves some vulnerability.

Something like this is water and oil tight, installs in seconds and you won't damage the finish of enclosure from heat of soldering/brazing and with the very quick install time should cost much less than it will cost you to solder/braze it as well 2 inch I linked is only $16.50. Cost you more than that to prepare to solder it.

Also available in Stainless if you need corrosion resistance.
 
kwired said:
Gasketed one earlier mentioned isn't exactly a "regular plug" though the through bolt still maybe leaves some vulnerability.

Something like this is water and oil tight, installs in seconds and you won't damage the finish of enclosure from heat of soldering/brazing and with the very quick install time should cost much less than it will cost you to solder/braze it as well 2 inch I linked is only $16.50. Cost you more than that to prepare to solder it.

Also available in Stainless if you need corrosion resistance.
Click to expand...
wow, super cheap. i saw a 2" one for like $76

the problem is that the hole is right where the breaker cover is. Unless this is very flat and i can reverse the wingnut, i couldn't use it
 
phatso86 said:
wow, super cheap. i saw a 2" one for like $76

the problem is that the hole is right where the breaker cover is. Unless this is very flat and i can reverse the wingnut, i couldn't use it
Click to expand...
probably could reverse it, that would put gasket on the inside and the wing nut on outside where it is easy for anyone to mess with though.

Little high strength thread lock on the threads maybe?

Depending on how much room you do have maybe even grind the stud down and put a regular nut on it (probably a 10-32 stud) keeping it as low profile as possible.
 
If the wingnut is in the way, just cut the screw shorter and use a regular nut and lock washer.
 
infinity said:
The hole closing device does not need to be listed. Here's the relevant section:
Click to expand...
yeah. Upon reading this, it makes sense that it doesn't need to be a listed item as it doesn't indicate it here.
But one inspector said that unless the plug is listed, he would not accept it.
Another inspector said that I CANNOT alter the equipment (which makes no sense since we bore holes, install more bus bars, swap lugs, etc.)
 
phatso86 said:
i have a situation where i cannot use a knockout plug.
My only option right now is to replace the panel with a new one or solder a plate around the hole.

obviously this isn't listed product to use as a cover, but is there something in the code that would allow me to do this?
I do not see this every being a problem, but hey, rules are rules
Click to expand...
Can you tell us what size/shape of hole, cutout, gouge (or whatever) you have? It would make suggestions easier

But here's one.
Can you use a weatherproof blank plate?
They have gaskets.
Drill and tap holes for 6-32 screws
Cut screws very short
 
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