[RE-wrenches] Large current battery combiners, UL Listing

Jeff Clearwater jeffc at villagepowerdesign.com
Fri Dec 2 14:52:58 PST 2022


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 <re-wrenches at lists.re-wrenches.org> 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-bounces at 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 at 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.
> 
> 
> -- 
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>  
> 
> --
> 
> Michael Morningstar
>  
> Morningstar Electric
> PO Box 1494
> Mount Shasta, CA 96067
> 530-921-0560
> mjmorningstar at gmail.com
> 
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