Wiring conundrum

[davewest]

I have a flush mount box, newly rewired for adequate power now. My walls are insulated and sheathed. I plan to surface mount all my wiring in conduit. My question is, how do i transition from a flush mount panel box to surface mount emt?

If i haven't made myself clear, let me know. And thanks for any help

 

[Marctrees]

To extend out a typical box, Steel "Extension ring".

1 1/2" + deep - Marc

https://www.google.com/search?q=ele...ved=0ahUKEwiJzdCFiaHSAhXETSYKHdsxBp0Q_AUIBygC

 

[Marctrees]

Otherwise, if the "Flush mount box" you have, is your breaker panel, then a surface mounted gutter box if for multiple ckts.

For just a few, Deep 4 11/16" steel box connected to panel w a very short piece of
Flexible conduit, just enough to make a 90 degree turn outwards to feed the backside of your new surface box, or similar.

Alternately, you could use an "LF" condulet fitting, leaving the cover accessible.

A bit of drywall cutting, patching, and mudding will be necessary.

Or whatever your ?"sheathing"? requires to do a neat install. Marc

 

[alfredeneuman]

I've been in the trade for 45+ years, and never heard of an "LF" conduit body, much less used one.

A "long bushed elbow" is just the ticket for the transition from a flush panel to surface wiring methods.

 

[Marctrees]

Sure, that part would be great.

Actually even better than any 90, is - Cut an appropriate neat hole, Oversize ****** a 4 11/16 box to the panel, then stack on extension, and continue on surface. Marc


Alfred - Most people know what an LB is.

Called that cause it's a 90 elbow, with the opening on the back (could call it top as well) when you hold it like a handgun.

Similarly, but not as common, are LF, LR, and LL conduit bodies.

By know you understand how those are designated also.

Just remember, easiest way not to mix them up is "Hold like a Pistol, what side opens??"


Now, go water "Arthur".

Marc

 

[dw1]

I have a flush mount box, newly rewired for adequate power now. My walls are insulated and sheathed. I plan to surface mount all my wiring in conduit. My question is, how do i transition from a flush mount panel box to surface mount emt?

If i haven't made myself clear, let me know. And thanks for any help

I am guessing this is in your garage/barn/shop?? You could get a decent size pvc j-box, take one pvc pipe from j-box into your panel, then come out of j-box with all your shop conduits/wiring ect. You can always stub an empty conduit up into the ceiling/rafters where you can access it later, just make sure you cap/tape/seal the end of it until you use it. Just a few ideas!!

 

[wyliesdiesels]

Otherwise, if the "Flush mount box" you have, is your breaker panel, then a surface mounted gutter box if for multiple ckts.

For just a few, Deep 4 11/16" steel box connected to panel w a very short piece of
Flexible conduit, just enough to make a 90 degree turn outwards to feed the backside of your new surface box, or similar.

Alternately, you could use an "LF" condulet fitting, leaving the cover accessible.

A bit of drywall cutting, patching, and mudding will be necessary.

Or whatever your ?"sheathing"? requires to do a neat install. Marc

I've been in the trade for 45+ years, and never heard of an "LF" conduit body, much less used one.

A "long bushed elbow" is just the ticket for the transition from a flush panel to surface wiring methods.

I have never heard of one either. The only conduit bodies i know of are LB, LL, LR, T, and C.

Perhaps marc has a pic of an LF he can post for us.

 

[teamextreme]

Never heard of an LF either.
If by flush mount box you mean a breaker panel, then the part alfred posted is the ticket. I used to make my own by taking a 3/4" sealtite 90, removing the bushing and insualtor, and inserting a 3/4" chase ****** with the threads sticking out where the sealtite would exit. This gave me the same setup as the bushed elbow, but with male threads so I could screw an LB on and take off with conduit. Worked slick.

If the flush mount box is a single gang wall box of some flavor, then the part OP needs is a 4 square to single gang box. The google search by marctrees only shows one, most are normal extensions boxes. The part number you want is a Hubbel/Raco 187. They're sometimes tough to find but one of the big box stores here sells them (can't remember if it's Lowes or HD, one has them, the other doesn't).

 

[Eriehunter]

I've been in the trade for 45+ years, and never heard of an "LF" conduit body, much less used one.

A "long bushed elbow" is just the ticket for the transition from a flush panel to surface wiring methods.

I've seen two LF's in my 25 year career. One was a 2" and it looked like a regular conduit body but the openings were all in the front. It was in a building I was doing some demo work in at a local college in the electrical room, it was quite old. Long time before the days of cellphones/cameras.

The other one was used in a speaker installation, it has some bosses on it with 3 holes for mounting to a column or flat surface. very strange looking piece.

Being that I don't get to do much industrial work anymore this is the first time I have seen that "long bushed elbow"

Learn something new everyday. cool

 

[Eriehunter]

 

[Marctrees]

Hmmmmmmmmmm......

Looks like I'm mistaken on the "F" version.

Maybe that's why some years ago, being a new guy at a jobsite, I was told to "go find one on the truck, and don't come back without it".....

Hour and a half later, I did return, but emptyhanded.

They thought it was quite humerous. Marc

 

[Marctrees]

Rare bird, Eriehunter. Marc

 

[davewest]

Looks like I found what I need. Thanks guys!

 

[wyliesdiesels]

wow thats an LF?

never seen one before and i cant think of any installs that would need that.

 

[penright]

My question is, how do i transition from a flush mount panel box to surface mount emt?

This maybe a dumb question, assuming there room, why not do an offset bend in the EMT?

Are the boxes for outlets and switches surface mount also? Then you will have to offset back from the surface, correct?