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

[Jason Szumlanski]

Haha, that was my comment, not Glenn's. A bulkhead fitting designed for use
with THWN is a different story. I was referring to a standard MC4 connector
designed and listed for use with Type PV/USE wire only.


Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208

On Tue, Nov 11, 2025, 9:44 PM William Miller via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Glenn:
>
>
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> I am one of those clowns:
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> https://millersolar.com/MillerSolar/practices/PV_wiring/PV_Cable_wiring/_PV_Cable_Wiring.html
>
>
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> William
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> 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 *Glenn via RE-wrenches
> *Sent:* Tuesday, November 11, 2025 4:11 PM
> *To:* RE-wrenches
> *Cc:* Glenn
> *Subject:* Re: [RE-wrenches] Buchanan Crimp in 1000v Applications and the
> NEC
>
>
>
>
>
> I have seen some clowns using MC4 connectors with #10 THHN wire to make
> these splices. That's obviously no bueno. Crazy stuff...
>
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