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FS & FD boxes #5941
12/15/01 11:43 AM
12/15/01 11:43 AM
C
Cindy  Offline OP
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
ARTICLE 370 -- Outlet, Device, Pull and Junction Boxes, Conduit Bodies and Fittings
370-1. Scope
Cast, sheet metal, nonmetallic, and other boxes such as FS, FD, and larger boxes are not classified as conduit bodies.

What are FS and FD boxes? How are they different than 4-square or device boxes? And how did they get the name FS and FD?

Work Gear for Electricians and the Trades
Re: FS & FD boxes #5942
12/15/01 03:34 PM
12/15/01 03:34 PM
N
Nick  Offline
Member
Joined: Aug 2001
Posts: 599
Riverside, CA
Here is a FS box.
[Linked Image]

The S means shallow. The D means deap. I belive the F stands for ferrous.

Re: FS & FD boxes #5943
12/16/01 09:13 AM
12/16/01 09:13 AM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,274
Fullerton, CA USA
I still get a kick out of the fact that "ferrous" boxes are available in aluminum.
The third letter will designate the # and location of hubs in the same way as a condulet, ie. an FSC will have 2 hubs on opposite ends, etc.

[This message has been edited by electure (edited 12-16-2001).]

Re: FS & FD boxes #5944
12/16/01 12:09 PM
12/16/01 12:09 PM
C
Cindy  Offline OP
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
Ok, then I'll go with FST referring to "ferrous shallow" T, like a condulet with end hubs and a side hub, not necessarily ferrous, and they appear to be meant for weather exposed and hard useage locations.
Does that sound right?
Thanks, C

Re: FS & FD boxes #5945
12/22/01 02:48 PM
12/22/01 02:48 PM
E
Elzappr  Offline
Member
Joined: Dec 2001
Posts: 270
Oregon
Cindy, I'm looking at an O-Z/Gedney catalog and it shows three basic single gang shallow box configurations: FSS, FSCT, FSX. The FSCT would serve for your "FST", it has a hub at both ends and at one side. I don't see a box with a rear hub, like in a TB condulet, nor a box that would look like an LB or LR.

Re: FS & FD boxes #5946
12/22/01 02:53 PM
12/22/01 02:53 PM
E
Elzappr  Offline
Member
Joined: Dec 2001
Posts: 270
Oregon
Oops, found more: FS--one end hub; FSC--two opposite end hubs; FSL and FSR--like LL and LR condulets. Also there is a FSA --no hubs; and an FSCC--two hubs on one end, one at the other end.

Re: FS & FD boxes #5947
12/22/01 03:40 PM
12/22/01 03:40 PM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,274
Fullerton, CA USA
Yes, the one Cindy describes is actually an FSCT, an FST comes in one end, and out both sides. Maybe I oversimplified it.
Try this: www.appletonelec.com

Re: FS & FD boxes #5948
12/23/01 12:32 PM
12/23/01 12:32 PM
C
Cindy  Offline OP
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
thanks, kinda like conduit bodies, but not.

when/where would we use these FS and FD boxes?

Re: FS & FD boxes #5949
12/23/01 12:58 PM
12/23/01 12:58 PM
G
golf junkie  Offline
Member
Joined: Apr 2001
Posts: 507
York, NE
>when/where would we use these FS and FD boxes?

We use them for any severe duty industrial application....grain elevators, ethanol plants, etc.

GJ

Re: FS & FD boxes #5950
12/23/01 01:11 PM
12/23/01 01:11 PM
C
Cindy  Offline OP
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
short of explosion proof enclosures then, would you say these fs/fd boxes are the best choice for weather and hard useage? i haven't tried to break one vs. trying to break a heavy plastic box but they do look and feel a bit like pot metal

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