Why is a 4415 box with 27 12s and an extension ring not ideal for homeruns, and why do you recommend 41116 boxes instead?
Asked by Jasmine Bouchard 
3 months ago
Last Updated: September 21, 2024
Guess what I found on a job today? An old “homerun” box with 27 #12s in it. Can you believe it? The NEC only allows for 9 #12s in a 4x4x1.5 box! I don’t even keep those small boxes in my van anymore, they’re just too limited. They’re really only good for one circuit, definitely not six. I always recommend using 4-11/16 boxes for homeruns whenever possible. And 12 KOs in a box? That’s no challenge at all.
It’s interesting that this has already been shared before
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I remember 20 years ago when I started in commercial work, one of my first jobs was at Northway Mall. There was a 3 ft ledge to walk on, and I had to remove a wire from a junction box that was level with the walkway because they had extended it with 4x4s. Wish I had the technology we have now to capture that moment on camera!
Matt raw, cameras have actually been in use for much longer than 20 years!!!
Unlike today, people used to actually work instead of chatting with family and friends all day!
Here we go again with the same content being reposted. Share something original.
More and more people are realizing that just reposting content is getting old
It’s pretty much an industry standard to use 4-11/16” ceiling boxes because of experiences dealing with situations like this.
When dealing with that many wires and conduit entering, I always opt for a minimum 6x6x3 box.
Working on Peco was a great job. I think they’ve mostly transitioned to indoor work now.
You might want to consider getting a larger box! Maybe even two!