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#108994 - 12/01/03 09:10 PM The Floating Disconnect
Webmaster Offline


Registered: 10/07/00
Posts: 3142
Loc: NY, USA

The Air Conditioning Contractor "volunteered" to wire the new unit. The disconnect is supported by the 1" conduit connected to concentric knock-outs in the bottom.

I call these pics "floating disconnect"

Ken Coanshock
K & J Company Electrical Contractors, Inc.
Carteret, NJ

2014 / 2011 NEC & Related Books and Study Guides
#108995 - 12/02/03 04:44 AM Re: The Floating Disconnect
George Corron Offline

Registered: 05/16/01
Posts: 728
Loc: Lorton, Va USA
Personally, I think they're using that new "invisi" dorf.

I've heard it was great, but I didn't think they had it rated for 3R use yet.

#108996 - 12/02/03 04:52 AM Re: The Floating Disconnect
pauluk Offline

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
If somebody pulls that handle in a hurry, he might disconnect a little more than he bargained for!

#108997 - 12/02/03 05:04 AM Re: The Floating Disconnect
electure Offline


Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
It looks like there's a set screw EMT connector beneath it.
Maybe that would give rain a place to pour out after coming in through all the holes.

#108998 - 12/02/03 10:51 AM Re: The Floating Disconnect
Bjarney Offline

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
That it looks like a 600-volt switch doesn’t add to any willingness to get within 10 feet of it, either. You gotta’ wonder if some contractors bank on the fact that it’s on a roof, so a building or fire inspector won’t likely see it.

#108999 - 12/02/03 01:24 PM Re: The Floating Disconnect
electricman2 Offline

Registered: 11/09/03
Posts: 234
Loc: Thomasville, NC USA
He could have saved money by not using a 3R can. With all those holes it would't make any difference anyway.

#109000 - 12/02/03 06:51 PM Re: The Floating Disconnect
crash Offline

Registered: 10/21/03
Posts: 130
Loc: Calgary Canada
That does not look like a 3R enclousure

#109001 - 12/02/03 06:58 PM Re: The Floating Disconnect
arseegee Offline

Registered: 01/28/02
Posts: 321
Loc: Statesboro, GA USA
The only bad thing about using "invisi" dorf is get the "invisi" spring nuts to line up.

#109002 - 12/03/03 07:29 AM Re: The Floating Disconnect
:andy: Offline

Registered: 10/18/03
Posts: 272
Loc: Germany
are the holes in the backplate open?? or are they closed by anything?

#109003 - 12/03/03 12:49 PM Re: The Floating Disconnect
HotLine1 Offline


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA
As one of the AHJ's who do go "up on the roof", I think that I would think twice about hanging a red sticker on this.

Yes, there are a few contractors that "gamble", but they loose!

From the pics, it appears that the disco is a 3R, check out the "lip" at the top of the front door.


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