Bill - you got it - the inverter will hold at the 10A limit. When this limit is achieved, you will see a log entry for "derating mode"
The Isc limit for the US-41 is 18A per channel, this is the limit you cannot exceed. Not sure if the US-41 is installed already? If you think you will have good conditions often, the SBSE US-50 line has 15A operating current limit per channel. Best regards - Mike Michael Mahon (he/him) Solar Academy Manager | SMA America 3925 Atherton Rd Rocklin, CA 95765 +1 916 918 9412 SMA America website<https://www.sma-america.com/> Solar Academy website<https://solaracademy.sma.de/en/> US English TechTip<https://www.youtube.com/playlist?list=PLoiOll7F4i-_Wc4JVN8ga2x2vxc8xews_> channel Upcoming SMA America trainings: English<https://solaracademy.sma.de/en/courses.html?filter%5b1%5d=English&filter%5b2%5d=United%20States> [cid:[email protected]]<https://www.sma-america.com/products/hybrid-inverters/sunny-boy-smart-energy> This email and any attachments thereto may contain SMA America, LLC confidential, privileged and private material for the sole use of the intended recipient. Any review, copying, or distribution of this email (or any attachments thereto) by others is strictly prohibited. If you are not the intended recipient, please contact the sender immediately and permanently delete the original and any copies of this email and any attachments thereto. Thank you. From: RE-wrenches <[email protected]> On Behalf Of Bill Battagin via RE-wrenches Sent: Saturday, October 19, 2024 7:17 PM To: Glenn Burt via RE-wrenches <[email protected]> Cc: Bill Battagin <[email protected]> Subject: [RE-wrenches] Overpowered mppt landing in a SMA-41? Hey folks, A customer I installed a system for 18 years ago now wants an upgrade, partly due to the Mitsubishi 170's high failure rate and the purchase of an EV. The Mission PVs I'm looking at (at a deal I 'can't' refuse) have a rated current of just over 13 amps, a string of 10 is easily below the Voc limit. The specs for the SB6.0-1SP-US-41 show a max current per mppt of 10 amps. I've never "pushed" this max amps limit quite this much, is there a problem? I assume the inverter will just clip the input to 10 amps midday. Would love some input, thanks, Bill Feather River Solar Electric Bill Battagin, owner 4291 Nelson St. (Shipping) 5575 Genesee Rd. (USPS, UPS) Taylorsville, CA 95983 530-284-7849, 258-1641(cell) CA. C10 Lic # 874049 Solar Powered since 1982 Home of the Sunny Side Up [https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> Virus-free.www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
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