Kudos to Dan Fink. Nice job. Just another reason to send a donation to
Michael Welch.

Christopher

On Mon, May 10, 2021 at 3:29 PM Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote:

> I agree and I just got written confirmation from Wago that said (regarding
> the 221-4XX series):
>
> WAGO's U.L. Recognition for Series 221 does Not differentiate between AC
> or DC Just Not to exceed 20A
>
> 600V Building Wire or 1000V Luminaires or Signs
>
> No Special designation is required.
>
> On Mon, May 10, 2021, 2:56 PM Dan Fink <danbo...@gmail.com> wrote:
>
>> Esteemed Wrenches; I spoke with engineers at both Wago and 3M today
>> regarding the AC vs. DC ratings of Wago 221 and other wire splicing
>> products. Both engineers stated that standard UL486C (Splicing Wire
>> Connectors) applies to *both* AC and DC voltages unless the product is
>> specifically listed for *only *AC or DC.
>>
>> They both gave the example that the same applies to the actual wire that
>> is being spliced: Is the THWN-2 wire we use inside DC OCPD panels
>> specifically UL rated for DC? *No (UL83)*. Is it acceptable for DC?
>> *Yes,* we use it all the time for DC circuits. How about USE-2 and MC?
>> Can we use them for both AC and DC? *Yes, *we use them all the time for
>> both AC and DC. Is it specifically UL rated for DC? *No. It doesn't need
>> to be.*
>>
>> Of course any wiring device that *disconnects *any circuit under load
>> must be rated for either AC, DC or both depending on the application. But
>> wire splicing connectors are not intended as a disconnecting device under
>> UL486C.
>>
>> I hope this clears up any confusion.
>>
>> Best regards;
>>
>> Dan Fink
>> Owner, Buckville Energy Consulting LLC
>> IREC Certified Instructor for PV and Small Wind Installation
>> NABCEP Certified PV System Inspector
>> NABCEP PV Associate
>> d <dan.f...@greendustrialtraining.com>anbo...@gmail.com
>> 970-672-4342
>>
>>
>> On Fri, May 7, 2021 at 3:43 PM Jason Szumlanski <
>> ja...@floridasolardesigngroup.com> wrote:
>>
>>> In another thread these connectors were discussed recently. There was a
>>> question regarding the suitability for DC circuits. I don't think we came
>>> up with any answers or consensus on that. I see the connectors are UL
>>> listed to the 486C standard. I can't determine whether that is applicable
>>> to AC and DC circuits. Does anyone know?
>>>
>>> I have only used these on AC circuits and they have been very effective.
>>> Now I'm curious whether they can be used on DC circuits up to 600 volts.
>>>
>>> While on the subject, I noticed they are UL 467 listed for grounding and
>>> bonding. That's helpful where you have EGC splices for conductors up to #10
>>> AWG inside junction boxes.
>>>
>>> Jason Szumlanski
>>> Florida Solar Design Group
>>>
>>>
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