SolarBOS can possibly make one custom for you, it will be listed, and it will not be cheap. I was going to order a 2000A w/ multiple OCPDs on both inputs and outputs from them, but then Midnite came out with a 2000A combiner, and I don't need it listed for my application.
On Sat, Sep 10, 2022 at 6:15 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Mac: > > > > Getting listing on something as specialized as you are talking about may > be difficult. I would turn to the telecom industry for solutions. Here is > one link > <https://bertholdelectric.com/dc-telecom-products/battery-termination-bars/> > I found. Their product line is pretty sexy and it is listed. > > > > If you are rolling your own, you can find ampacities for standard copper > bar thicknesses someplace like here > <https://www.copper.org/applications/electrical/busbar/busbar_ampacities.html>. > You might fabricate something that looks like one of these > <https://millersolar.com/MillerSolar/Portfolio/Inverters/battery_iinverters/JP_Radian/Images/Battery_busses_open.jpg> > but bigger. Threading is desirable so you can avoid wrangling nuts on the > back sides, but tapping copper at a reasonable bolt size (likely 3/8-16) > can be tricky. I am looking for any excuse to buy one of these drill > presses > <https://www.grizzly.com/products/teknatool-18-nova-voyager-dvr-variable-speed-drill-press/t30589> > which can automatically chip-clear. Basically at this point in my life my > only reason for working is to support my tool addiction. > > > > Good luck. > > > > William Miller > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *Mac Lewis via RE-wrenches > *Sent:* Thursday, September 8, 2022 8:46 PM > *To:* RE-wrenches > *Cc:* Mac Lewis > *Subject:* [RE-wrenches] Large current battery combiners, UL Listing > > > > Hello Wrenches, > > > > Is anyone aware of a high current, (~3000A DC rated, 48Vdc nominal) > battery combiner panel that would allow for ~36-48 x 4/0 cables to connect? > > > > Seems like nothing will be close to UL listed on this. How do you go > about building a 60 kW off-grid system on the battery side of things? Do I > need to increase battery voltage design? > > > > I have gotten a custom busbar fabricated by Storm Power rated for about > 2kA before, but I'd love to have a UL Listed solution for large battery > combining. Any suggestions are appreciated. > > > > Thanks! > > > > -- > > > > > > > > Mac Lewis > > "Yo solo sé que no sé nada." *-Sócrates* > _______________________________________________ > 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 > > -- *Kirk Herander / **kirkh@vermont.solar <kirkh@vermont.solar>* *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com&data=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636842843233477645&sdata=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D&reserved=0> dba Vermont Solar Engineering 802.863.1202
_______________________________________________ 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
