Seeking a 4-11/16 box without knockouts

[n1ist]

I have some light dimmers that mount as the cover to a 4-11/16 box. I am building a lab test fixture for these, and am having a lot of trouble finding a 4-11/16" box that doesn't have knockouts as our safety person won't allow one with KO's for OSHA reasons. Either a bell box or PVC box would be fine; I have looked at Bell and Carlon without any luck. Does such a critter exist? I am trying to avoid having to build a stud-and-sheetrock wall to hold one dimmer and a lamp holder for this test. Ironically, the safety person would allow having the dimmer just sitting on the bench with flying leads and Wago clips, but I'd feel safer putting it in an enclosure...

/mike

 

[eHunter]

Take a look at a carlon E9802

 

[chris kennedy]

our safety person won't allow one with KO's for OSHA reasons.

Which OSHA reason would that be???

 

[infinity]

Which OSHA reason would that be???

Wondering that too. Maybe the box is floating?

 

[n1ist]

Carlon E9802 is a double-gang box; the cover screws are not in the same position as on a 4-11/16.

As for the OSHA question, she views this the same as if it was an extension cord; no KO on any box not mounted permanently to the building. This would be an aluminum plate with the dimmer and loads mounted to it, with a power cord feeding it, sitting on a lab bench.

Others here have just used Bud boxes and mounted the devices to them; I guess I will go that route.

/mike

 

[kwired]

Garvin catalog has one in it 72171-BLNK is the catalog number. I would guess most major box manufacturers probably have one but it may not be all that common for a supply house to carry them.

 

[n1ist]

Thanks kwired - that will be perfect.
/mike

 

[cowboyjwc]

Garvin catalog has one in it 72171-BLNK is the catalog number. I would guess most major box manufacturers probably have one but it may not be all that common for a supply house to carry them.

Good find. I've never seen one before. Wonder how you ground the box.

 

[GoldDigger]

Good find. I've never seen one before. Wonder how you ground the box.

Well, it does have the screw tabs. Or maybe a self-tapping sheet metal screw sticking through the box from inside.

 

[kwired]

Wonder how you ground the box.

With metallic raceways, of course:happyyes:

 

[infinity]

A nut and bolt with a ground lug works for me.

 

[chris kennedy]

A nut and bolt with a ground lug works for me.

While your drilling for your lug, here is a uni-bit, hold that thing with your foot and give me a 1" KO in the side.

 

[infinity]

While your drilling for your lug, here is a uni-bit, hold that thing with your foot and give me a 1" KO in the side.

 

[kwired]

While your drilling for your lug, here is a uni-bit, hold that thing with your foot and give me a 1" KO in the side.

4-11/16 box is starting to get large enough that it isn't just too difficult to hold on to.

If you have a "C frame" punch driver putting a hole in a side wall is not much of a problem. But I don't have one so I guess I'm drilling a hole no matter what.

 

[Little Bill]

With metallic raceways, of course:happyyes:

Kind of hard to have a raceway attached if there is no KOs for it!

 

[kwired]

Kind of hard to have a raceway attached if there is no KOs for it!

Also kind of hard to attach a raceway if the KO is not where you want it:happyyes: