Hi Bill Is there a new M250? Enphase shows the 250 at 48vdc max and states 60 cell only modules.
That would be nice if it did both Jay Peltz power. Sent from my iPhone > On Sep 27, 2013, at 10:14 AM, "Bill Brooks" <billbroo...@yahoo.com> wrote: > > William, > > Just to add one more thing. I said that the M215 does not match well, but if > you have them on hand, they would still work. You will probably power limit > in the spring and fall, but the rest of the year you will probably do fine. > The M250 has a higher operating voltage for 72-cell arrangements. The M215 is > more suited for 60-cell modules and circuits. > > Bill. > > > From: re-wrenches-boun...@lists.re-wrenches.org > [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller > Sent: Thursday, September 26, 2013 10:01 PM > To: RE-wrenches > Subject: [RE-wrenches] Using legacy modules on micro-inverters > > Friends: > > I am trying to upgrade a long time off-grid client to a grid-connected > installation. They have a mix of Siemens PC4JF and Shell SQ-150P modules. > It is my understanding that putting two of the PC4JFs in series is exactly > one SQ-150. I don’t have spec sheets for the PC4JFs but I am told they are > an SP75. If I use the data for the SP75 and multiply the voltages by two I > get exactly a SQ-150P. > > Anyway, putting two 36 modules together makes one 72 cell module. This would > likely work with an Enphase M190 but those are no longer manufactured. Same > with the M215. Power One makes a micro that meets the predicted voltage > window. > > I did this a while ago with pairs of SR100s. It worked great. Anyone try > this with even older modules, like those cited??? > > Thanks in advance. > > William Miller > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > 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 > > Check out participant bios: > www.members.re-wrenches.org >
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