Hi Jason, One thing you might consider is an Outback FM100 with the 300Vdc input. You can do 2 strings of 4, then combine on the roof. Typically you can easily get that on #10 wire. This may allow the controller to show up with the Mate. I would disable arc fault to make it work reliably.
If you can't find them, let me know off-list and I may be able to help. Good luck! On Mon, Apr 21, 2025 at 2:55 PM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > There are particular challenges with running new conductors to the roof, > and I don't have 8 wires to work with, unfortunately. This is one of the > reasons I am planning a single string at 600V > > > Jason Szumlanski > Principal Solar Designer | Florida Solar Design Group > NABCEP Certified Solar Professional (PVIP) > Florida State Certified Solar Contractor CVC56956 > Florida Certified Electrical Contractor EC13013208 > > > On Fri, Apr 18, 2025 at 8:34 PM MDElectricSolar via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> You could swap it out with a FM-80 and do 4 strings of two modules in >> series. >> >> Michael D Nelson >> MD Electric & Solar, Inc. >> 707-684-0064 mobile >> 707-884-1862 office >> www.mdelectricsolar.com >> www.facebook.com/mdelectricandsolar >> >> >> On Apr 18, 2025, at 6:40 AM, Christopher Warfel via RE-wrenches < >> re-wrenches@lists.re-wrenches.org> wrote: >> >> >> >> Hi Jason, I have the same set up. These are the array and cc breakers. >> Although we are having a power outage right now, the DC shunt is doing its >> usual crazy reading from time to time. Chris >> >> >> <2b1DSIMNoJXo0FJ2.jpg> >> >> On 4/18/2025 8:35 AM, Jason Szumlanski via RE-wrenches wrote: >> >> Hi all, >> >> I have a client that wants to replace a PV array that is aging and >> hurricane damaged. It's a rather old array of unknown rating connected to a >> MX60 via a Flexware 500 DC enclosure (48V). >> >> I'm planning to install eight REC 450 Alpha Pure RX in series. I'm going >> to need a 600 volt charge controller. I'm considering a Midnite Hawk's Bay >> unless someone has a better idea. >> >> The customer sent me this crude image. I can see the two inverter >> breakers on the right. I am wondering what the two breakers on the left >> are. I'm thinking one of these is an 80 amp breaker for the output of the >> MX60. The other one is probably a PV input breaker of unknown rating. I >> would need to change these to accommodate the new charge controller. The >> Midnite Hawk's Bay 90 requires a 125A output breaker. Does anyone know if >> there is an Outback breaker of this physical size and 125A rating to plug >> into this DC FlexWare enclosure? For the PV input, I should be able to get >> whatever breaker is required for this single string of PV. >> >> I'm all ears if there is an easier way to go about this with >> approximately 3,600W of new PV. >> >> Thanks in advance! >> >> Jason Szumlanski >> Florida Solar Design Group >> >> Check out or update participant bios:http://www.members.re-wrenches.org >> >> -- >> Christopher Warfel, PE >> ENTECH Engineering, Inc. >> PO Box 871, Block Island, RI 02807 >> (401) 447-5773 >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> >> _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates*
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
