Wall fixture cut in boxes used in ceilings

[Tulsa Electrician]

More serious note.
2014 NEC
410.36 (A)
314.27 (A) (2)
Read carefully first two sentences.

 

[Tulsa Electrician]

Now read
314.23 (C)

 

[CustomElectricLLC]

Now read
314.23 (C)

I dont have the 2014 but read the 2017, so 314.23 (C) is stating that a fan rated box is required if prewired. Yes that actually applies to a lot of homes here in texas because fans are very common. Great article to call out those that try to skimp on minimums

 

[kwired]

I dont have the 2014 but read the 2017, so 314.23 (C) is stating that a fan rated box is required if prewired. Yes that actually applies to a lot of homes here in texas because fans are very common. Great article to call out those that try to skimp on minimums

Which I have felt ever since introducing this that it goes against what is mentioned in 90.1.

Might be good design decision but should not be a requirement.

 

[acin]

I think those wont work on any wall thicker than 1 inch

 

[James L]

I think those wont work on any wall thicker than 1 inch

The ears on the blue ones can be trimmed back to get a little more

 

[mjerney]

Item #838169Model #MSBST250
This is same style as blue one but is rated for up to 50lb fixture in ceiling and recommended for smoke alarms

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[Little Bill]

The ears on the blue ones can be trimmed back to get a little more

Two other tricks to use on thicker walls:
1.) Take the wings (you call them ears) off and turn them around, easier then trimming them
2.) Replace the screws with longer ones to allow the wings to go back further.

 

[acin]

Two other tricks to use on thicker walls:
1.) Take the wings (you call them ears) off and turn them around, easier then trimming them
2.) Replace the screws with longer ones to allow the wings to go back further.

This forum is great. Thanks for that tip

 

[AC\DC]

You guys must be weight lifters, never ran a box through the ceiling like your describing. I need to hit the gym.

 

[CustomElectricLLC]

Item #838169Model #MSBST250
This is same style as blue one but is rated for up to 50lb fixture in ceiling and recommended for smoke alarms

Sent from my SM-N986U using Tapatalk

Ive seen these at big orange, Ive tried to find cut sheets on what they are listed to support and crickets nothing. You have any details? Heres cut sheet from Home Depots site that says 6lbs (though on product description it says "50lbs". Theres no way in heck you could support 50lbs from 1/2 gypsum board in a typical residential home legitimately.

 

[wwhitney]

Ive seen these at big orange, Ive tried to find cut sheets on what they are listed to support and crickets nothing. You have any details?

This spec sheet says "supports up to 6 lbs":

Shark Tooth

The only box that cuts its own hole.

meproducts.net

Cheers, Wayne

 

[mjerney]

Lol there is a typo, on this page, it says both, 6lbs is correct, the big thing is it is listed for overhead.

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[kwired]

Ive seen these at big orange, Ive tried to find cut sheets on what they are listed to support and crickets nothing. You have any details? Heres cut sheet from Home Depots site that says 6lbs (though on product description it says "50lbs". Theres no way in heck you could support 50lbs from 1/2 gypsum board in a typical residential home legitimately.

You probably can, question is for how long?

 

[Tulsa Electrician]

First one no ceiling fixture.
Second one NEW ceiling fixture rated for 10 lbs.
No more breaking the law.

 

[kwired]

rated for wall fixture support up to 15 pounds

Same box but without the snap clamp - says rated for up to 50 pound ceiling or wall fixture (bottom mount). Kind of presume that bottom mount means if you put mounting screws through the knockout holes in the back wall of the box and into some sort of structural member?