Kirpal,
I'm not aware of a 15-degree allowance for NEMA 3R. Others on this forum may be more familiar. Bottom line, if the installation instructions do no specifically allow for an angle, you have to assume that vertical is the only allowable orientation. The only rooftop disconnects that I know of that can be mounted in the plane of the roof would be a NEMA 4 disconnect combiner. Midnite Solar might have something in low angle NEMA 3R. Way back in the day, Trace had their switch combiner that could be mounted at 3:12. Bill. From: [email protected] [mailto:[email protected]] On Behalf Of Mark Drummond Sent: Thursday, November 07, 2013 10:59 PM To: RE-wrenches Subject: Re: [RE-wrenches] Square D Disconnects mounted on the slope of the roof. 15 degrees off of vertical is my understanding for standard RBs. So no, can't do that. Cheers good friend. On Nov 7, 2013 2:42 PM, "Kirpal Khalsa" <[email protected] <mailto:[email protected]> > wrote: Hi Folks!!! Anyone aware of minimum slope requirements for Square D 321RB disconnects....Can they be mounted on rails parallel to the slope of the roof like Outback and Midnite solar combiner boxes(down to a 3/12 pitch) I can't seem to find any notes stating the limitations in manufacturer documentation...... They are NEMA 3 of course.... Thanks in advance for any direction you can provide.... Sunny Regards, Kirpal Khalsa NABCEP Certified PV Installation Professional Renewable Energy Systems www.oregonsolarworks.com <http://www.oregonsolarworks.com> 541-218-0201 <tel:541-218-0201> m 541-592-3958 <tel:541-592-3958> o _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] <mailto:[email protected]> Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> Check out participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org>
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