Good luck trying to convince your customer that their house caught on fire because of a manufacturers flaw, and you have no responsibility for it…
It may be an out to shift the blame, but it only makes everybody get some on them… From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of William Miller via RE-wrenches Sent: Wednesday, November 08, 2023 12:14 PM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Cc: William Miller <will...@millersolar.com> Subject: Re: [RE-wrenches] Cable sizing for high current modules? NEC interpretation/guidance? George: Appliance manufacturers have their own requirements that are not the same as the NEC requirements. As long as you are not modifying the manufactured assembly you are not responsible for compliance of that appliance. By appliance, I mean the solar module, microinverter, etc. William Miller Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com <http://www.millersolar.com/> CA Lic. 773985 From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org <mailto:re-wrenches-boun...@lists.re-wrenches.org> ] On Behalf Of George McClellan via RE-wrenches Sent: Wednesday, November 8, 2023 9:06 AM To: RE-wrenches Cc: George McClellan Subject: [RE-wrenches] Cable sizing for high current modules? NEC interpretation/guidance? Team; With the move to larger cells, some modules have an Isc that is pushing the limits of 12 AWG wire. If I apply the rule of 156% (or 125% solar derate*125% continuous load derate) to an 18 Amp Isc module this will exceed the 25A that a 12 AWG wire can carry. I understand that the homeruns will need to be a larger AWG (10 ga), but do the solar module cables (from junction box to MC4) also need to be larger? Any guidance or reference material would be greatly appreciated. Thx, George McClellan | Senior Technical Sales Manager | REC Americas LLC 330 James Way Ste 150 | Pismo Beach, CA 93449 | USA Cell phone +1 805 704 3226 | Fax +1 805 357 6104 www.recgroup.com <http://www.recgroup.com/> | george.mcclel...@recgroup.com <mailto:shannon.k...@recgroup.com> _____ This message is private and confidential and may be privileged. Any unauthorized use, dissemination of the information or copying of this message is prohibited. If you have received this message in error, please notify us immediately and remove it from your system. Thank you.
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