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#115620 11/20/03 07:51 AM
Joined: Dec 2000
Posts: 4,291
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This box is a (Hubbell) Raco 3.5" "Ceiling Box".
They've been around since the days of knob & tube wiring.

[Linked Image]

Where would you use this particular box??...S



[This message has been edited by electure (edited 11-20-2003).]

#115621 11/20/03 09:07 AM
Joined: Aug 2002
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See question #11: https://www.electrical-contractor.net/Education/Mike_Holt_Code_Q&A.htm

Substitute 314.16 for 370-16

#115622 11/20/03 04:26 PM
Joined: Dec 2002
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Only on a ceiling fixture or wall sconce with a canopy that meets the wire fill requirements.

[This message has been edited by Gus1999 (edited 11-20-2003).]

#115623 11/20/03 05:39 PM
Joined: Sep 2003
Posts: 114
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Well, it's 4.0 cu in-so it's perfect for old fashioned 14-2 Romex with no ground.

#115624 11/20/03 07:06 PM
Joined: Dec 2000
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I've seen lots of these above sinks in bathrooms on residential work.
Seems that darn plumber always vents straight up, and there's almost always a stud right there...S
TG, yes when they enter from a domed fixture.
Now, what about the ground wire in the 14-2 romex?? It doesn't count?



[This message has been edited by electure (edited 11-20-2003).]

#115625 11/20/03 08:15 PM
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Quote
Now, what about the ground wire in the 14-2 romex?? It doesn't count?

Not if you cut it off before it enters the box...who needs a ground for a light fixture anyway?

(NOTE: That was supposed to be sarcasam...)

#115626 11/20/03 08:57 PM
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These things always seem to get added onto over time

"You know, I always wanted an outlet there...."

#115627 11/20/03 09:03 PM
Joined: Dec 2000
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Now, let's deduct 1 conductor for the clamps
...S

#115628 11/20/03 09:08 PM
Joined: Aug 2003
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I never use the 3.5" ones and never with clamps.

Ceiling fixture that lands on a joist and sconces that land on a stud.
They are some of the best support for heavier fixtures since the mounting point is centered on the box.


Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
#115629 11/22/03 02:48 PM
Joined: Oct 2000
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I've used these before, and reasoned that the Fixture Dome effectively adds volume to the box that can be divided up for conductor fill. It has been a solution for some tough situations.

But ... strictly speaking, 370-16(B)(1)Exception seems to say that the 'domed luminaire' or canopy space can only be used to avoid counting the fixture wires.

Bill


Bill
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