×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

J-Box vs Condulette
2

J-Box vs Condulette

J-Box vs Condulette

(OP)
.
I wonder if someone could explain under what conditions one would spec/use/install a condulette (conduit body) rather than a standard j-box or pull box in a commercial bldg?  Is it perhaps based on the number of wires to be spliced?  Is there a magic number?

Also are there specific advantages/condition for the use of one or the other?

Thanks again for any help...

/Dennis

RE: J-Box vs Condulette

Pull points, and means of low radius turns.  Splices may be permitted in conduit bodies but belong in j-boxes.

RE: J-Box vs Condulette

(OP)
.
Thx David

So a conduit body is only there to facilitate the pull and change direction abruptly, not for a splice...that makes sense.  I couldn't see the reason to use one before since a J-box seemed simpler, even for a change in direction (if there were a splice).

Thx again

/D

RE: J-Box vs Condulette

Condulets have a much lower profile than a J-box, and as David says, allow you to make a 90 deg turn in a much tighter radius than an elbow.  

RE: J-Box vs Condulette

(OP)
D/DPC

OK, thanks again.

/D

RE: J-Box vs Condulette

Sometimes, the condulet radius is TOO small -- that is, you may well end up with a bending radius that is too small for the cable being pulled.  This is true not only with "L" fittings, but also with straight "C" condulets -- you still need to pull the cable out then back in for a straight pull using a C fitting as a pull point, which means you're forming a U-shaped loop which becomes very tight radius when you try to get the cable back inside the fitting....

RE: J-Box vs Condulette

peebee,

Check out Crouse-Hinds "mogul" LBD and LBNEC condulets for greater radius.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources