EMT Supported Box or Enclosure

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RaffJimT

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Article 314.23 Support of Boxes: I understand from the provisions in this Article of the NEC that Raceway-Supported Boxes can only be supported utilizing Threaded conduit.
EMT (although does not explicitly mention) is not allowed to support a box such as a 4" square metal box using compression type or set screw type connectors. Looking for comment.
 
RaffJimT said:
EMT (although does not explicitly mention) is not allowed to support a box such as a 4" square metal box using compression type or set screw type connectors. Looking for comment.
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Correct. The box with EMT would require it's own support.

Welcome to the forum.
 
infinity said:
Correct. The box with EMT would require it's own support.

Welcome to the forum.
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Isn't there an exception for EMT to support conduit bodies though ?

Say, a run of emt into a SS or Compression connector threaded into the long or short end of an LB followed by a 4sq box chase nippled into the other end ?

Jap>
 
jap said:
Isn't there an exception for EMT to support conduit bodies though ?

Say, a run of emt into a SS or Compression connector threaded into the long or short end of an LB followed by a 4sq box chase nippled into the other end ?

Jap>
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No, The code is definitive on Threaded Raceway - Threaded hub
 
There is an exception for conduit bodies in 314.23(E)

(always pays to check the book :) )
 
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Wouldn't the EMT into the conduit body still need a support within 3' or is this covered by the exception?
 
infinity said:
Wouldn't the EMT into the conduit body still need a support within 3' or is this covered by the exception?
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The way I read it, yes, but the wording might be subject to interpretation as that is mentioned in the body of the paragraph and not the exception
 
RaffJimT said:
No, The code is definitive on Threaded Raceway - Threaded hub
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Just saying the use of the exception and a conduit body may offer a way to support a box from EMT that's not a hard "no".

You'd still have to follow the rule for support of the conduit body itself.

Jap>
 
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