Wrenches Per some white papers connectors are interchangeable, this being said l have had arc issues as a result. FYI there are knock-offs out there to. Jerry
On Wed, Sep 4, 2019, 1:42 PM Brian Mehalic <br...@solarenergy.org> wrote: > Are you saying each module has, for example, a positive factory H4 lead > and a negative factory MC4 lead? > > I definitely know of H4 problems, both mated with H4s and mismatched. > > Brian Mehalic > NABCEP Certified Solar PV Installation Professional™ R031508-59 > National Electrical Code® CMP-4 Member > (520) 204-6639 > > Solar Energy International > http://www.solarenergy.org > > SEI Professional Services > http://www.seisolarpros.com > > > > On Wed, Sep 4, 2019 at 1:22 PM Kent Osterberg <k...@coveoregon.com> wrote: > >> I've recently been looking for the cause of random power drop offs to >> zero in an Enphase M215 system with LG260 PV module that was installed >> in 2013. Just one inverter in a system of fourteen has been doing this. >> Enphase suggested moving the inverter to a different PV module and sure >> enough doing that proved the problem wasn't with the inverter. >> Intermittent zero output was being caused by the PV module. In making >> the inverter/module change I found that all the LG 260 modules in this >> system have one MC4 connector and one H4 connector. At present I'm >> convinced the mismatched connector is the actual cause of the problem. >> Anyone else ever notice find PV modules with mixed MC4 and H4 connectors? >> >> Kent Osterberg >> Blue Mountain Solar >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> 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 >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> _______________________________________________ > List sponsored by Redwood Alliance > > 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 > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > >
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