I see that Canadian Solar has some official looking report from Chinese CSA stating that the Amphenol connectors they use are tested as interchangeable with MC-4… Haven’t been able to figure out what the piece of paper means, how the testing was done, or how they certified it…
From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Jim Duncan Sent: Sunday, August 25, 2019 7:10 PM To: re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Amphenol Connectors Several years ago I disassembled an Amphenol and a MC4 connectors to find for myself what the difference was. It came down to the cross section of the O-ring. One brand was smaller than the other. Also the female component that the O-ring fit into was correspondingly different. So in one assembly the fit was too tight but both mismatched pieces would go together with extra effort while the other the o-ring did not fit tight enough and would snap together with normal pressure. It's been a number of years since I did this but I doubt that either manufacturer would alter anything that would make new connectors not compatible with older ones. I also recall that MC was on a tear for years, especially at trade shows, confronting any unauthorized competitor connector maker that implied that theirs were compatible with MC products. Jim Duncan retired... Solar Acres Farm 817.917.0527 solarguy2...@gmail.com <mailto:solarguy2...@gmail.com> On 8/25/2019 5:21 PM, Mark Frye wrote: Speaking of Tesla... What with Walmart and (Amazon?) suing them for PV fires... Can anyone here give a brief run down on the whole Amphenol UTX (?) defective or cross-mated connector story? Thanks, Mark Frye _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org <mailto: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 <http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org> --
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