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Old 02-18-2013, 02:55 PM   #1
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PVC boxes and trade designations


I've seen designations on PVC boxes such as FSE, FSC, FSS. From a quick deduction these labels appear to relate to where the pipe enters/exits the box, and how many ports are molded into the boxes. (e.g. - one hole; two holes; two holes on one end; two holes with one on each end; etc.

Anyone know where can I find a comprehensive list of these designations with definitions? Not having much luck with Google.

Here is an example.
http://www.wescodirect.com/direct/im...068_elec08.pdf

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Last edited by jlmran; 02-18-2013 at 03:00 PM.
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Old 02-18-2013, 04:30 PM   #2
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PVC boxes and trade designations


FS boxes are typically used for exterior applications. Code here doesn't allow PVC for exposed exterior use. If it's buried (some municipalities require concrete encasement) then it's OK.

Are you looking for something like this?



We went through a lot of discussion about terminology a while ago but basically the blue boxes are for interior applications and "gang" refers to the maximum number of devices you can get in a box. You can use a two gang box, install a single gang drywall ring on it and you have an opening in your drywall for one device with extra space in the box for terminations and such.

Here's the metal version:


4"x4" boxes are often referred to as 1900 boxes. Rectangular boxes as 8-B boxes. Weatherproof are often referred to as Bell boxes. Terminology depends on where you're from.

Hope this helps.

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Old 02-18-2013, 07:49 PM   #3
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PVC boxes and trade designations


I'm asking in the context of PVC weatherproof boxes. What I'm looking for, for example, is the different designations for a:

PVC 1/2" 1-gang box with one hole

Versus

PVC 1/2" 1-gang box with two holes, one on each end

Versus

PVC 1/2" 1-gang box with two holes, both on each end

Et cetera, et cetera.
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Old 02-18-2013, 08:16 PM   #4
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PVC boxes and trade designations


Quote:
Originally Posted by jlmran View Post
I'm asking in the context of PVC weatherproof boxes. What I'm looking for, for example, is the different designations for a:

PVC 1/2" 1-gang box with one hole

Type FSE

Versus

PVC 1/2" 1-gang box with two holes, one on each end

Type FSC

Versus

PVC 1/2" 1-gang box with two holes, both on each end

Have not seen one of these, but a type FSS has 2 holes on one end, and a type FSCC has 2 holes on one end, and one hole on the other end.

Et cetera, et cetera.

Also, there are "FD" boxes available which are the same type, except they are deeper. FS = shallow; FD = deep.


Click here for one manufacturer's online catalog, and look at pages 55-60.
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Last edited by kbsparky; 02-18-2013 at 08:29 PM. Reason: Added catalog pdf link
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Old 02-18-2013, 08:32 PM   #5
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PVC boxes and trade designations


Thanks KB...that's a great help. But, I'm not following the logic of E, S, CC. Are these random letters?

The S and D for shallow and deep make sense, though.

Oops...didn't see the link...I'll go read. Thanks.

Last edited by jlmran; 02-18-2013 at 08:39 PM.
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Old 02-18-2013, 08:39 PM   #6
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PVC boxes and trade designations


Those letter designations are equally applied to conduit body access fittings.

Type E = end

Type C = continuation

Not sure how they got type SS or type SCC however ....

Scroll back to page 49 of the catalog to see `em ....
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Old 02-18-2013, 08:41 PM   #7
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PVC boxes and trade designations


Quote:
Originally Posted by kbsparky
Those letter designations are equally applied to conduit body access fittings.

Type E = end

Type C = continuation

Not sure how they got type SS or type SCC however ....

Scroll back to page 49 of the catalog to see `em ....
Got it...thanks a bunch.

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