[RE-wrenches] Buchanan Crimp in 1000v Applications and the NEC

[William Miller]

https://www.grainger.com/product/MERSEN-Power-Distribution-Block-1-25CC04


I prefer terminals fastened in place and accessible tor testing. One option
is above.

Or:

https://www.rexelusa.com/p/2986/allen-bradley/terminal-block-150a-1000v-ac-dc-gray-35mm-feed-through/662073058373/1492-j35

https://www.phoenixcontact.com/en-us/products/multi-level-terminal-block-pttb-4-l-1000v-3062744


Or McMaster-Carr:

7641K52
<https://www.mcmaster.com/product/7641K52>


William Miller
Miller Solar.com
805-438-5600
www.millersolar.com


On Tue, Nov 11, 2025 at 10:15 AM Sam Haraldson via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Wrenches,
>
> On the attached product spec sheet for Ideal Copper Crimps (aka Buchanan
> crimps) you'll see that max voltage for the crimp is rated at 600V but an
> asterisk indicates up to 1000V when "in fixtures and signs".  In our
> application this is a 1000v system and we are joining pairs of #10 PV
> wires.  The junctions are made in a rail-mounted, plastic j-box.  We could
> not find the definition of "fixture" as it might pertain to this situation
> in the NEC and as such are interested to learn more about using Buchanan
> crimps for 1000V applications.
>
> [image: image.png]
>
> Cheers,
> Sam
>
> [image: OnSite Energy] <https://onsiteenergyinc.com/>
>
> Sam Haraldson
> Operations Specialist
> (406) 551-6135
> 1515 N. Rouse Ave Bozeman, MT 59715
> <https://www.google.com/maps/search/1515+N.+Rouse+Ave+Bozeman,+MT+59715?entry=gmail&source=g>
> Locally owned and operated since 2012
> [image: B Corporation] <https://onsiteenergyinc.com/bcorp>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at 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
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20251111/f3db402d/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 208878 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20251111/f3db402d/attachment-0001.png>