ptonsparky
Tom
- Occupation
- EC - retired
How many twelves fit in a 4x4x2 1/8 square box?
Ans: All you need. Or at least 39.
How many will fit?
- Thread starter ptonsparky
- Start date
- Status
How many twelves fit in a 4x4x2 1/8 square box?
Ans: All you need. Or at least 39.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Conduit fill looks a bit over.
James L
Senior Member
- Location
- Kansas Cty, Mo, USA
- Occupation
- Electrician
I've worked in that j-box numerous times 
Except usually it's 1-1/2" deep and the cover was left off. Apparently so the wires can breathe
Except usually it's 1-1/2" deep and the cover was left off. Apparently so the wires can breathe
ptonsparky
Tom
- Occupation
- EC - retired
I’d include the exploded view if I could get it off my messages.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
The NEC junction box fill numbers are very conservative when there is no device in the box, a good electrician can shape them in and exceed the NEC limits without an issue. However IMO the OP's box is excessive.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
It can't be one of mine; I would have used yellows.
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
- Occupation
- Electrician
A top hat will take care of that....
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texie
Senior Member
- Location
- Fort Collins, Colorado
- Occupation
- Electrician, Contractor, Inspector
There are still some unused KOs in that box. That means you can add some more!
WOW how many CUIN is that thig?
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
- Occupation
- Electrician
36 cubic inches! I've never used but have some on order to use on a commercial job with lots of pipe to mc transition boxes above a drop ceiling.
Did a job a few years back at a commercial building that suffered fire damage.
Was doing tear out and pulled down a piece of 3/4" emt that was located in an area where excessive damage was done.
When I cut through it with a sawzall there was literally no air space in the tube even after all the insulation burned off.
I saved it for the electrical inspector to look at.
There was over 20 conductors, mixed 10's and 12's.
Whoever pulled those in must have heated up the tube to expand it and froze the wires shrink them.
We found most all the conduits and boxes were excessively over filled.
It was a Quick Lube station and surprisingly the fire was attributed to solvent soaked rags left in an unapproved container.
The electrical was very forgiving in that building.
Was doing tear out and pulled down a piece of 3/4" emt that was located in an area where excessive damage was done.
When I cut through it with a sawzall there was literally no air space in the tube even after all the insulation burned off.
I saved it for the electrical inspector to look at.
There was over 20 conductors, mixed 10's and 12's.
Whoever pulled those in must have heated up the tube to expand it and froze the wires shrink them.
We found most all the conduits and boxes were excessively over filled.
It was a Quick Lube station and surprisingly the fire was attributed to solvent soaked rags left in an unapproved container.
The electrical was very forgiving in that building.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
It took me a minute to figure out what that is.
Whatever happened to extension boxes?
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
"I can't be overdrawn! I still have checks left!"
texie
Senior Member
- Location
- Fort Collins, Colorado
- Occupation
- Electrician, Contractor, Inspector
I almost mentioned the same thing in my post. Seems fitting.
ptonsparky
Tom
- Occupation
- EC - retired
The j-box feed a series of plugmold strips set up for a large wall mounted lighting display for a locally owned BB store.
Who installs those? Would it be someone from fixture supplier? They mounted the front half of strips then left the back cover off. Hopefully it wasn’t an area EC.
Who installs those? Would it be someone from fixture supplier? They mounted the front half of strips then left the back cover off. Hopefully it wasn’t an area EC.
- Status