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Posted by SQLit on June 30, 2005, 5:52 pm
> I am planning to install a new service panel and there are three areas to
> punch out the holes in the back for the wires to come in (3/8" to over
2").
> I want to plan how many wires and what size clamp for each opening but am
> having trouble finding the right spot in the NEC to tell me the limit. Is
> it the same as for metallic conduit in general or tell me which chart to
> refer to.
NEC has nothing to do with the amount of wires through the connector.
The connector manufacture will have a UL listing for example 2-14/2's or
1-14/3.
Check locally, they may allow you to use a bushing instead. I used to put in
2- 2 1/2 inch bushings and run all the concealed wires through those. I have
not done a residential service in 15 years so what I am telling you may be
out of date.
All conduit has a number of wire limit. Depends on the size of the wire and
insulation of the indiviual wires. The max is usually a son of a gun to get
in if there are very many 90's.
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