SAAPI
Member
- Location
- Boston, Massachusetts
I swear round electrical boxes are against the electrical code - we had a huge argument with an electrical inspector years ago - but it seems that is not true anymore - or was that a local code?
Round Electrical Boxes
- Thread starter SAAPI
- Start date
- Status
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Round boxes are permitted but you cannot enter the side of a round box under specific conditions.
SAAPI
Member
- Location
- Boston, Massachusetts
thanks so you need a flat area for the connections.
Fred B
Senior Member
- Location
- Upstate, NY
- Occupation
- Electrician
You have a particular box in mind? Perhaps a picture? If box meets the already mentioned criteria dont see a problem. We use round PVC floor boxes in poured concrete floor regularly.
Carultch
Senior Member
- Location
- Massachusetts
That is, unless there is an integrated entry hub, like in Fred's image.
If cutting your own hole in the box, or using a knockout, you need a planar surface for the fittings to get a proper connection.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
That's correct or a round box designed for entry with hubs like in post #4.
hbiss
EC, Westchester, New York NEC: 2014
- Location
- Hawthorne, New York NEC: 2014
- Occupation
- EC
This is what we call a round box. What's the problem?
-Hal
-Hal
Fred B
Senior Member
- Location
- Upstate, NY
- Occupation
- Electrician
Yeah most say Round, but it's listed as an octagon box. Serves same purpose. Most truly round boxes I've seen have been either strictly for nm or have rear KOs or built in hubs to connect PVC conduit or threaded hubs.
Carultch
Senior Member
- Location
- Massachusetts
The sides with the knockouts are planar, and perfectly OK to use for your connections. The pseudo-diagonals are curved, and is where conduit entries would not be allowed.
- Status