02:00PM | 11/17/06
Member Since: 06/20/05
53 lifetime posts
Hi, I've done quite a bit of electrical work around the house before but I have hit on something that makes no sense. I have done the calculations as to how many conductors you can fit into a box for the # of cubic inches. This all makes sense.

Now I am installing remodel-type recessed lights, with the built-in J box. This is a standard 6" remodeling non-IC can that you get from the Orange Box store. It says "Maximum of 8 No 12 conductors (4 in and 4 out)". I don't know what this means. I assumed at first the "8" was the normal conductor count. But that doesn't make a lot of sense. What I *want* to do is:

1. Connect a 12/2 as the supply

2. Connect two 12/2s to branch out to other recessed fixtures

It seems to me that that's no more than 4 in and 4 out. However, it seems to me that total conductor count here would be:

- 2 conductors each 12/2 cable (6 total)

- 2 conductors for the wire that feeds the light itself (2)

- 1 conductor for ground

That totals 9. What's more, the other thing that doesn't make sense is that the box is pretty tiny - I estimate about 12 cu in (3.5 x 2.5 x 1.5, more or less). How could you fit 8 12/2s in 12 cu in - wouldn't that require 18 cu in?


06:01AM | 11/18/06
Member Since: 06/20/05
53 lifetime posts
What was I thinking? Who knows - must have been mesmerized by all the mentions of 12/2's on the fixture or the length of the workday yesterday :-)). I meant I want to run 14/2. I also forgot to include the wire connectors in my conductor count, so I'm up to 10, and 20 cubic inches.


05:18AM | 11/20/06
Member Since: 03/31/05
265 lifetime posts
The instructions with the fixture state "max 8 #12 conductors" That means you can run 4 12/2 or 1 12/2 and two 12/3 into this box. That's a little too crowded for my taste, but permitted. Since the instructions say this, you are allowed to do it per the NEC.

By using 14/2, you make things much easier and are well within the guidelines specified in the instructions.


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

These stylish cabinets are a classier way to store laundry goods and give the room a sophisticated, polished look.  It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon