neater junctions in a pull box? din rail?

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allanc

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Bay Area, CA
I have a pull box going into a crawl space. It's going to have a short
IMC conduit run to the panel outside, with 10g into the panel (derating for 20amp
branch circuits) and from the pull box to 6-8 EMT branch circuits in 12g
(and room for more).

I know I could wire nut them, but would like something where
the whole mess doesn't fall out of the box every time I open.

Are there terminal blocks for this? Am I allowed to mount a DIN rail
and terminals or something similar and use those? (all the wires will
be 1-to-1 connections with exception of EGC)
 
allanc said:
I have a pull box going into a crawl space. It's going to have a short
IMC conduit run to the panel outside, with 10g into the panel (derating for 20amp
branch circuits) and from the pull box to 6-8 EMT branch circuits in 12g
(and room for more).

I know I could wire nut them, but would like something where
the whole mess doesn't fall out of the box every time I open.

Are there terminal blocks for this? Am I allowed to mount a DIN rail
and terminals or something similar and use those? (all the wires will
be 1-to-1 connections with exception of EGC)
Click to expand...

Check here at Space Age Electronics for their tooless terminal strip and mounting bracket. Their usual product is good for 20 gauge to 12 gauge. If you need another range, give them a call. I don't think they manufacture the terminal strip themselves and they may point you to what you need. I have always found them to be very helpful.
 
The tool-less terminal blocks are also available from McMaster Carr ( and probably many other places).
 
jumper said:
Sure, you can mount terminal strips or din rail and blocks.

See 314.28(E)
Click to expand...


thanks for all the answers.

To summarize for the archives:
Looks like they're specifically mentioned in the 2011 code as ok in boxes
over 100cu, though previously people did it and NEC was silent on it.

Needs to be UL listed terminals, other through conductors can't obstruct,
enough space, and not exposed conductors


I'd used them in control boxes/appliances, but hadn't seen them in
branch circuit wiring even though there was no logical reason in my
mind that they wouldn't work and be safe (they are tested by UL,
have voltage and current ratings, and the holes/terminals are designed
to keep you from being shocked)
 
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