EMT Supported Box or Enclosure

[RaffJimT]

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.

 

[infinity]

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.

Correct. The box with EMT would require it's own support.

Welcome to the forum.

 

[jap]

Correct. The box with EMT would require it's own support.

Welcome to the forum.

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>

 

[RaffJimT]

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>

No, The code is definitive on Threaded Raceway - Threaded hub

 

[augie47]

There is an exception for conduit bodies in 314.23(E)

(always pays to check the book )

 

[infinity]

Wouldn't the EMT into the conduit body still need a support within 3' or is this covered by the exception?

 

[augie47]

Wouldn't the EMT into the conduit body still need a support within 3' or is this covered by the exception?

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

 

[jap]

No, The code is definitive on Threaded Raceway - Threaded hub

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>