Re: [RE-wrenches] Large current battery combiners, UL Listing
Actually up to 1500 amps available including 1000 amp version as well. It’s hidden in the spec sheets under large fuse holders. Sent from my iPhone > On Dec 2, 2022, at 5:20 PM, Glenn Burt via RE-wrenches > wrote: > > > I recently found that Victron makes DC bus bars for battery work with studs > already on them. Up to 600A models are available. > > -Glenn > Sent from my 'smart'phone, so please excuse typos and spelling errors. > > -- Original message-- > From: William Miller via RE-wrenches > Date: Fri, Dec 2, 2022 3:42 PM > To: RE-wrenches; > Cc: William Miller; > Subject:Re: [RE-wrenches] Large current battery combiners, UL Listing > > Colleagues: > > > > I am gearing up to tap some more copper. I assume this is a pertinent > subject since bus bars are going to be needed frequently for any storage work. > > > > I bought the fancy drill press with the tapping function and I am setting it > up. I ran a few tests and the functionality of the tool is pretty amazing. > I still need to work on programming it to reverse when needed. I am close. > I also ordered a cross vise for part holding. > > > > I found this tutorial on line that has provided me with some valuable insight > on different styles of taps. > > > > William > > > > 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 Michael Morningstar via RE-wrenches > Sent: Monday, September 12, 2022 7:39 PM > To: RE-wrenches > Cc: Michael Morningstar > Subject: Re: [RE-wrenches] Large current battery combiners, UL Listing > > > > No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do > in the above mentioned bussing > > > > On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches > wrote: > > Michael, > > Are you using kerosene as a cutting fluid? We've had > better luck with that in softer than steel metals. > > Bill > > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049 > > On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote: > > We've gotten around needing UL listings for one-off in house > > fabrication by running things through a licensed engineer. Right now > > we are building a gutter bus which has two 1/2" x 4" x 20' copper bars > > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with > > slots routed out for the bars as insulators. This is for 24 Discover > > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer > > sign off on our designs. > > > > I'd be interested in learning tricks for tapping 3/8" in thick copper. > > I've never been able to get consistent results and resort to > > thru-bolting. > > > -- > This email has been checked for viruses by Avast antivirus software. > www.avast.com > ___ > 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 > > > > > > -- > > Michael Morningstar > > Morningstar Electric > PO Box 1494 > Mount Shasta, CA 96067 > 530-921-0560 > mjmornings...@gmail.com > > ___ > 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-wren
Re: [RE-wrenches] Large current battery combiners, UL Listing
Wrenches, William I did a few back up systems for data hubs, we had 250+ kWhr systems. We had to have a firewall between the batteries and everything else. We used copper stock 1/2 x 2" and 20' long, each bank connected to the buss with its own 250 a breaker, the buss was above the batteries mounted to SS strut using 1000 volt insulators on both positive and negative. The power conditioners were on the opposite side of the wall again all connected to the buss going to each unit and again protected. Was very clean, no line loss, very clean and was duplicated in several locations. We also had a 125 k cummins genny outside that would take over to keep us all connected. Jerry PS, we did not tap and we used brass bolts and nuts, l dont recall why but it may have not been able to torg enough. On Fri, Dec 2, 2022, 12:42 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Colleagues: > > > > I am gearing up to tap some more copper. I assume this is a pertinent > subject since bus bars are going to be needed frequently for any storage > work. > > > > I bought the fancy drill press with the tapping function and I am setting > it up. I ran a few tests and the functionality of the tool is pretty > amazing. I still need to work on programming it to reverse when needed. I > am close. I also ordered a cross vise for part holding. > > > > I found this tutorial > <https://www.youtube.com/watch?v=bkrUzGooA9k_channel=HaasAutomation%2CInc.> > on line that has provided me with some valuable insight on different styles > of taps. > > > > William > > > > 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 *Michael Morningstar via RE-wrenches > *Sent:* Monday, September 12, 2022 7:39 PM > *To:* RE-wrenches > *Cc:* Michael Morningstar > *Subject:* Re: [RE-wrenches] Large current battery combiners, UL Listing > > > > No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to > do in the above mentioned bussing > > > > On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Michael, > > Are you using kerosene as a cutting fluid? We've had > better luck with that in softer than steel metals. > > Bill > > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049 > > On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote: > > We've gotten around needing UL listings for one-off in house > > fabrication by running things through a licensed engineer. Right now > > we are building a gutter bus which has two 1/2" x 4" x 20' copper bars > > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with > > slots routed out for the bars as insulators. This is for 24 Discover > > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer > > sign off on our designs. > > > > I'd be interested in learning tricks for tapping 3/8" in thick copper. > > I've never been able to get consistent results and resort to > > thru-bolting. > > > -- > This email has been checked for viruses by Avast antivirus software. > www.avast.com > ___ > 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 > > > > > -- > > Michael Morningstar > > > > Morningstar Electric > > PO Box 1494 > > Mount Shasta, CA 96067 > > 530-921-0560 > > mjmornings...@gmail.com > > ___ > 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 > &
Re: [RE-wrenches] Large current battery combiners, UL Listing
I recently found that Victron makes DC bus bars for battery work with studs already on them. Up to 600A models are available.-GlennSent from my 'smart'phone, so please excuse typos and spelling errors.-- Original message--From: William Miller via RE-wrenchesDate: Fri, Dec 2, 2022 3:42 PMTo: RE-wrenches;Cc: William Miller;Subject:Re: [RE-wrenches] Large current battery combiners, UL ListingColleagues: I am gearing up to tap some more copper. I assume this is a pertinent subject since bus bars are going to be needed frequently for any storage work. I bought the fancy drill press with the tapping function and I am setting it up. I ran a few tests and the functionality of the tool is pretty amazing. I still need to work on programming it to reverse when needed. I am close. I also ordered a cross vise for part holding. I found this tutorial on line that has provided me with some valuable insight on different styles of taps. William Miller Solar17395 Oak Road, Ata scadero, CA 93422805-438-5600www.millersolar.comCA Lic. 773985 From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Michael Morningstar via RE-wrenchesSent: Monday, September 12, 2022 7:39 PMTo: RE-wrenchesCc: Michael MorningstarSubject: Re: [RE-wrenches] Large current battery combiners, UL Listing No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do in the above mentioned bussing On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches wrote:Michael, Are you using kerosene as a cutting fluid? We've had better luck with that in softer than steel metals.BillFeather River Solar ElectricBill Battagin, Owner4291 Nelson St.Taylorsville, CA 95983530.284.7849CA Lic 874049On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote:> We've gotten around needing UL listings for one-off in house > fabrication by running things through a licensed engineer. Right now > we are building a g utter bus which has two 1/2" x 4" x 20' copper bars > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with > slots routed out for the bars as insulators. This is for 24 Discover > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer > sign off on our designs.>> I'd be interested in learning tricks for tapping 3/8" in thick copper. > I've never been able to get consistent results and resort to > thru-bolting.-- This email has been checked for viruses by Avast antivirus software.www.avast.com___List sponsored by Redwood AlliancePay optional member dues here: http://re-wrenches.orgList Address: re-wrenc...@lists.re-wrenches.orgChange listserver email address & settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.orgThere 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.orgList rules & etiquette:http://www.re-wrenches.org/etiquette.htmCheck out or update participant bios:http://www.members.re-wrenches.org -- Michael Morningstar Morningstar ElectricPO Box 1494Mount Shasta, CA 96067530-921-0560mjmornings...@gmail.com___ 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
Re: [RE-wrenches] Large current battery combiners, UL Listing
Colleagues: I am gearing up to tap some more copper. I assume this is a pertinent subject since bus bars are going to be needed frequently for any storage work. I bought the fancy drill press with the tapping function and I am setting it up. I ran a few tests and the functionality of the tool is pretty amazing. I still need to work on programming it to reverse when needed. I am close. I also ordered a cross vise for part holding. I found this tutorial <https://www.youtube.com/watch?v=bkrUzGooA9k_channel=HaasAutomation%2CInc.> on line that has provided me with some valuable insight on different styles of taps. William 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 *Michael Morningstar via RE-wrenches *Sent:* Monday, September 12, 2022 7:39 PM *To:* RE-wrenches *Cc:* Michael Morningstar *Subject:* Re: [RE-wrenches] Large current battery combiners, UL Listing No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do in the above mentioned bussing On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: Michael, Are you using kerosene as a cutting fluid? We've had better luck with that in softer than steel metals. Bill Feather River Solar Electric Bill Battagin, Owner 4291 Nelson St. Taylorsville, CA 95983 530.284.7849 CA Lic 874049 On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote: > We've gotten around needing UL listings for one-off in house > fabrication by running things through a licensed engineer. Right now > we are building a gutter bus which has two 1/2" x 4" x 20' copper bars > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with > slots routed out for the bars as insulators. This is for 24 Discover > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer > sign off on our designs. > > I'd be interested in learning tricks for tapping 3/8" in thick copper. > I've never been able to get consistent results and resort to > thru-bolting. -- This email has been checked for viruses by Avast antivirus software. www.avast.com ___ 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 -- Michael Morningstar Morningstar Electric PO Box 1494 Mount Shasta, CA 96067 530-921-0560 mjmornings...@gmail.com ___ 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
Re: [RE-wrenches] Large current battery combiners, UL Listing
No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do in the above mentioned bussing On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Michael, > > Are you using kerosene as a cutting fluid? We've had > better luck with that in softer than steel metals. > > Bill > > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049 > > On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote: > > We've gotten around needing UL listings for one-off in house > > fabrication by running things through a licensed engineer. Right now > > we are building a gutter bus which has two 1/2" x 4" x 20' copper bars > > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with > > slots routed out for the bars as insulators. This is for 24 Discover > > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer > > sign off on our designs. > > > > I'd be interested in learning tricks for tapping 3/8" in thick copper. > > I've never been able to get consistent results and resort to > > thru-bolting. > > > -- > This email has been checked for viruses by Avast antivirus software. > www.avast.com > ___ > 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 > > -- Michael Morningstar Morningstar Electric PO Box 1494 Mount Shasta, CA 96067 530-921-0560 mjmornings...@gmail.com ___ 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
Re: [RE-wrenches] Large current battery combiners, UL Listing
Michael, Are you using kerosene as a cutting fluid? We've had better luck with that in softer than steel metals. Bill Feather River Solar Electric Bill Battagin, Owner 4291 Nelson St. Taylorsville, CA 95983 530.284.7849 CA Lic 874049 On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote: We've gotten around needing UL listings for one-off in house fabrication by running things through a licensed engineer. Right now we are building a gutter bus which has two 1/2" x 4" x 20' copper bars in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with slots routed out for the bars as insulators. This is for 24 Discover AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer sign off on our designs. I'd be interested in learning tricks for tapping 3/8" in thick copper. I've never been able to get consistent results and resort to thru-bolting. -- This email has been checked for viruses by Avast antivirus software. www.avast.com ___ 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
Re: [RE-wrenches] Large current battery combiners, UL Listing
We've gotten around needing UL listings for one-off in house fabrication by running things through a licensed engineer. Right now we are building a gutter bus which has two 1/2" x 4" x 20' copper bars in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with slots routed out for the bars as insulators. This is for 24 Discover AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer sign off on our designs. I'd be interested in learning tricks for tapping 3/8" in thick copper. I've never been able to get consistent results and resort to thru-bolting. On Sun, Sep 11, 2022 at 4:49 AM Dana Orzel via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > You might possibly check with Northwest energy storage all of their hup > solar one batteries come with solid copper bars lead plated I don’t know > what the ampacities are but Rob might be able to assist you there > > Dana Orzel > C: 208.721.7003 > E- d...@solarwork.com > > On Sep 10, 2022, at 7:17 PM, Kirk Herander via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > 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 archiv
Re: [RE-wrenches] Large current battery combiners, UL Listing
You might possibly check with Northwest energy storage all of their hup solar one batteries come with solid copper bars lead plated I don’t know what the ampacities are but Rob might be able to assist you there Dana Orzel C: 208.721.7003 E- d...@solarwork.com > On Sep 10, 2022, at 7:17 PM, Kirk Herander via RE-wrenches > wrote: > > > 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 >> 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 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. You might fabricate something that looks >> like one of these 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 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 > Owner|Principal, VT Solar, LLC > Celebrating our 31st Anniversary 1991-2022!! > www.vermont.solar > 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/pip
Re: [RE-wrenches] Large current battery combiners, UL Listing
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 * *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435%7C1%7C0%7C636842843233477645=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D=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
Re: [RE-wrenches] Large current battery combiners, UL Listing
Wrenches We have used the midnight box, both with and without OCP breakers, I dont think they are large enough for what you want, we have up to 80 kWhrs connected going to 5 Radians. Fun times On Thu, Sep 8, 2022, 8:47 PM Mac Lewis via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > 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 > > ___ 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
Re: [RE-wrenches] Large current battery combiners, UL Listing
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
[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
