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 >> >> >> _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@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 > >
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