Dear wrenches I did not include the back story as it is not relevant to my inquiry. However given the comments I decided to include it in that it will hopefully clear up any confusion.
Where I used to live, the local community radio station ( poorly funded) has a old PV system with you guessed it a SMA SB2500U that was installed brand new a long time ago. It failed and a replacement was located for $150. But it was 208 and not 240vac, which someone didn’t catch when ordering it. A buck/boost transformer allows it to work but adds tare losses that we were trying to remove. It is my understanding that a like for like component swap is covered under code rules. Regardless, no inspection or calls to the county permit office were made or will be made. One of the great joys of living very rurally. Back to my original post about how to or if it’s possible to convert a 208 to 240vac SMA SB2500U, which appears to be no, thanks to all who contacted me. Jay Peltz Power. > On May 18, 2021, at 7:23 PM, Jerry Shafer <jerrysgarag...@gmail.com> wrote: > > > Wrenches > I would also be surprised if the old 2500 would last very long. > Better off with a SB5.0-41 and if you need RSD then add that in also. > >> On Tue, May 18, 2021, 12:15 PM Dave Angelini Offgrid Solar >> <offgridso...@sti.net> wrote: >> Probably if it is old it does not have these recent Certifications and UL >> requirements. Just gave these to my local AHJ. >> >> IEEE 1547, UL 1741-SA, Rule 21, Rule 14H, PREPA, and CSA 107.1 >> >> Product Certification History Project Date Description 80049402 2020-09-18 >> Update to report 70194014 to meet grid support function according to CA Rule >> 21 for 120Vac output configuration. 80036281 2020-03-15 Update report >> 70194014 to include UL1741 CRD SA17/18 UL 1741(California Rule 21 Phase 3 >> Function 2 and Function 3) for Model XW Pro 6848 NA. 80020062 2019-10-30 >> Update report 70194014 to include firmware upgrade for Model XW Pro 6848 NA. >> 70220117 2019-03-27 Update Report 70194014 to include minor firmware update >> for Model XW Pro 6848 NA. 70212688 2019-03-04 Update Report 70194014 to >> Include Volt-Watt and revised Freq-Watt grid tie requirements as per UL1741 >> Supplement SA for Model XW Pro 6848 NA (FGA 865-6848-21). >> >> Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> http://members.sti.net/offgridsolar/ >> e-mail offgridso...@sti.net >> text 209 813 0060 >>> On Tue, 18 May 2021 14:07:08 -0400, "Glenn Burt" <glenn.b...@glbcc.com> >>> wrote: >>> >>> Hi Kirk, >>> >>> >>> >>> Can you elaborate on which UL standards the older SB units don't comply >>> with? >>> >>> >>> >>> -Glenn >>> >>> >>> >>> From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of >>> Kirk Herander, VSE >>> Sent: Tuesday, May 18, 2021 6:42 AM >>> To: re-wrenches@lists.re-wrenches.org >>> Subject: Re: [RE-wrenches] SMA SB 2500U >>> >>> >>> >>> These older Sunnyboys do not comply with latest UL standards regardless. If >>> its a new installation, a savvy utility / AHJ will catch this. >>> >>> >>> >>> Kirk Herander / kirkh@vermont.solar >>> >>> Owner|Principal, VT Solar, LLC >>> >>> Celebrating our 30th Anniversary 1991-2021!! >>> >>> www.vermont.solar >>> >>> dba Vermont Solar Engineering >>> >>> 802.863.1202 >>> >>> On 5/17/2021 3:53:26 PM, William Miller <will...@millersolar.com> wrote: >>> >>> Jay: >>> >>> Some years ago I mis-ordered 5 SB2500s for 208 three phase and it turned >>> out the system was 240 VAC three phase (open delta). I had to return the >>> inverters to the factory to be converted and I had to rewire all of the >>> arrays. So no, I don't think this can be done in the field. >>> >>> William Miller >>> >>> Miller Solar >>> 17395 Oak Road, Atascadero, CA 93422 >>> 805-438-5600 >>> www.millersolar.com >>> CA Lic. 773985 >>> >>> >>> -----Original Message----- >>> From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On >>> Behalf Of Jay >>> Sent: Monday, May 17, 2021 11:44 AM >>> To: RE-wrenches >>> Subject: [RE-wrenches] SMA SB 2500U >>> >>> Does anyone know if you can convert a >>> SMA SB2500U ( old red inverter) from 208 to 240vac? >>> >>> Without using a boost transformer. >>> >>> Thx >>> Jay >>> >>> Peltz power. >>> >>> >>> _______________________________________________ >>> 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 >>> _______________________________________________ >>> 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 >>> >> _______________________________________________ >> 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 >> > _______________________________________________ > 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. 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