Ron The Sol-Ark has two MPPT channels and has two separate landing spots for each MPPT channels. Each landing pair needs matching strings. 8 AWG wire barely fits so the Sol-Ark PV terminals so they may only be rated for 10AWG.
I’m assuming you have a ground array The most common stringing method would be to use a trench with conduit and THHN wire. You could also sleeve a direct-burial cable into the ground. Calculate the voltage drop over the distance to make sure 10AWG is adequate. If not, then make a junction, like a MidNite or Outback combiner or an IMO switch at the array to get up the right wire size, with an added MidNite Surge Protector or EMP shield device. If it’s a long distance (larger wire size), add another combiner at the inverter building entrance to get back to 10 AWG. https://practicalpreppers.com/product/imo-4-pole-16-amp-dc-disconnect/ Also, The Sol-Ark sizing guide helps with string calculations. https://www.sol-ark.com/solar-panel-sizing/SolarPanelSizing.html Contact me off list with additional questions. Maverick Brown Off-Grid Solar Commander since 2006 Maverick Solar Enterprises, Inc. • Solar Commander Remote Power • SunFlow Systems Cathodic Protection maver...@mavericksolar.com 512-460-9825 > On Apr 12, 2022, at 9:42 PM, Ron Young via RE-wrenches > <re-wrenches@lists.re-wrenches.org> wrote: > > Hi Wrenches, trying to wrap my head around a first time Sol-Ark install. > Because the max DC voltage is 500v at 18a and the PV I’m using is 40v DC > each I will have to create three strings each 480v. What would be the best > choice for a home run wire? I’ve always used smaller strings with micro > inverters, a combiner at the array and a single Teck home run cable but the > string inverter presents a different scenario and it looks like I’ll need to > use three home run cables, one for each string. > > Ron Young > > earthRight Products - Solareagle.com > Alternative Energy Solutions ~ Renewable Energy Products > > > _______________________________________________ > 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 >
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