[RE-wrenches] Parallel Homegrid Stack'd Busbar

[Jason Szumlanski]

I was thinking the Midnite combiner, but it's a very big product for what
we're trying to accomplish. I was hoping Polaris type tap connectors might
be able to do it. I think this application is going to require a somewhere
around 800A calculated minimum circuit ampacity. I'm not quite certain how
to calculate the required ampacity properly for this bus. Either way, I
would need to find a connector that accepts fine stranded cable. Such an
animal might not exist in the required ampacity. The Ilsco PBTS line
accepts find stranded cable, and if you stagger inputs and outputs it is my
understanding that the ampacity allowance is additive. The 600 MCM 4-port
connectors might have the required ampacity. Maybe I'm dreaming and a
Polaris-type connector isn't an easy way out.

Alternatively, I was thinking of a Blue Sea 1000A busbar mounted in a
trough or junction box.

Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956


On Thu, Jun 29, 2023 at 7:58 AM <rich at solartechvt.com> wrote:

> Hi Jason
>
> We’re using the Midnite MNCB battery combiner for the same purpose.
>
>
> https://www.midnitesolar.com/productPhoto.php?product_ID=439&productCatName=BATTERY
>
> I’m curious what others may suggest for options.
>
> Thanks
>
> Rich
>
>
>
> *From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
> Behalf Of *Jason Szumlanski via RE-wrenches
> *Sent:* Thursday, June 29, 2023 7:55 AM
> *To:* RE-wrenches
> *Cc:* Jason Szumlanski
> *Subject:* [RE-wrenches] Parallel Homegrid Stack'd Busbar
>
>
>
> Hi all,
>
>
>
> I'm doing my first installation with two 24 kWh Homegrid stacks. They will
> feed two Sol-Ark 15k. I'm seeking recommendations on busbars for connecting
> this up in the most elegant way possible.
>
>
>
> Pictures speak 1,000 words, so if you have any I would appreciate it
> (off-list is fine).
>
>
>
> Jason Szumlanski
>
> Florida Solar Design Group
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20230629/cc16b539/attachment.htm>