I've been using similar "solar" disconnects. Its nice to see UL. I looked at a local solar project today that the installer used GE 600VAC/250VDC disconnects on the DC side. Three strings with each being broken by one pole. It had passed inspection.
Jesse On Sat, Aug 25, 2012 at 7:38 PM, Glenn Burt <[email protected]> wrote: > We switched (ha!) to Siemens disconnects after the hoopla about Square D.. > **** > > > http://www.sea.siemens.com/us/internet-dms/btlv/CircuitProtection/HeavyDutySafetySwitches/docs_HeavyDutySafetySwitches/HD%20Photovoltaic%20Final%20050110.pdf > **** > > ** ** > > I really don’t think there is a problem using the SQD if you can series up > a couple of poles. **** > > ** ** > > -Glenn**** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Jesse Dahl > *Sent:* Friday, August 24, 2012 9:43 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Disconnets**** > > ** ** > > Hello,**** > > ** ** > > I've been having a long conversation with a local guy > about disconnects that are usable in DC PV circuits. From what I have > seen, GE, Eaton... they are usable up to the 250VDC it has listed on the > labels, or more if poles are wired in series. The squared D 600Vac/dc is > self tested to 600VDC/pole. The disconnects in question are not the "solar > disconnects" on the market now. **** > > ** ** > > What are people using for the GDI systems? I seem to think that if if > says 250VDC on the label, that is its rating unless you wire pole in series > and the manufacturer has literature saying that that is acceptable. **** > > ** ** > > Thoughts on the square D self listing?**** > > ** ** > > ** ** > > Jesse**** > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & 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 > > Check out participant bios: > www.members.re-wrenches.org > > >
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