<div dir="ltr"><div dir="ltr"><div><span id="gmail-docs-internal-guid-876d3e94-7fff-d40a-f6da-56c266bb6394"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Well this isn’t a totally direct answer to questions on this thread, but I did want to address wet locations. (I do think the text on the Buchanan spec sheet in regards to voltage makes it a no-go for 1kV+ systems. It's a little surprising "fixture" isn't defined in the NEC, though in that case the convention is to use the generally accepted definition, which matches the contextual usage in the NEC - a permanently installed light, not including the bulb).</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline"><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">As defined in the NEC (2026), a rooftop is (no duh, even here in Arizona!) a wet location:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Location, Wet. (Wet Location)</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">A location that is one or more of the following:</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">(1) Unprotected and exposed to weather</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">(2) Subject to saturation with water or other liquids</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">(3) Underground</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">(4) In concrete slabs or masonry in direct contact with the earth</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">The inside of raceways in wet locations above grade is also a wet location:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">300.11(A) Raceways in Wet Locations Above Grade.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Where raceways are installed in wet locations above grade, the interior of these raceways shall be considered to be a wet location. Insulated conductors and cables installed in raceways in wet locations above grade shall comply with 310.10(C). [310.10(C) is requirements for conductors in wet locations]</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">314.14 requires junction boxes used in damp or wet locations have to be listed for such use, as is the case with 3R (which can be marked “rainproof”) and 4X (which can be marked “watertight”) enclosures (note the minimum drainage opening size in (C)(1), so as to prevent clogging), but does not state that their interior is considered a wet location:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">314.15(A) Prevent Moisture.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">In damp or wet locations, boxes, conduit bodies, outlet box hoods, and fittings shall be placed or equipped to prevent moisture from entering or accumulating within the boxes, conduit bodies, or fittings.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">314.15(B) Listed.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Boxes, conduit bodies, outlet box hoods, and fittings installed in wet locations shall be listed for use in wet locations.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">314.15(C) Drainage.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">314.15(C)(1) Approved Openings.</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Approved drainage openings not smaller than 3 mm (1∕ 8 in.) and not larger than 6 mm (1∕ 4 in.) in diameter shall be permitted in the field in boxes or conduit bodies listed for use in damp or wet locations.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Enclosures for OCPDs (240.32) in damp or wet locations, and panelboards (408.37) in damp or wet locations must comply with 312.4(A) and (B):</span></p><br><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">312.4(A) Weatherproof Enclosures. </span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">In damp or wet locations, surface-type enclosures within the scope of this article shall be placed or equipped such that moisture or water is prevented from entering and accumulating within cabinets or cutout boxes, and be mounted so there is at least 6 mm (1∕ 4 in.) of airspace between enclosures and walls or other supporting surface </span><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">(yikes!!!!)</span><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">. Enclosures installed in wet locations shall be weatherproof. Exception: Nonmetallic enclosures shall be permitted without the airspace on a concrete, masonry, tile, or similar surface. </span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">312.4(B) Raceways or Cable Above Live Parts. </span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">For enclosures in wet locations, raceways or cables entering above the level of uninsulated live parts shall use fittings listed for wet locations.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">The OCPDs installed in a typical panelboard are listed and designed to be installed in that enclosure, which has the proper rating for the location; and additional requirements stated above prevent direct dripping of moisture onto energized components such as bussing or breakers.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">The only requirement related to listing for connections in 110.14 is that direct buried connectors or splicing means be listed for such use. </span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">110.11 states, in regard to deteriorating agents, conductors or equipment located in damp or wet locations must be identified for use in the operating environment. Note the definition of identified, and that listing is one means of identification but not the only one, so there is some latitude for the AHJ: </span></p><br><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Identified (as applied to equipment).</span></p><p dir="ltr" style="line-height:1.38;margin-left:36pt;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Recognizable as suitable for the specific purpose, function, use, environment, application, and so forth, where described in a particular code requirement.</span></p></span></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div>Brian Mehalic <br>Solar Tech Collective</div><div>National Electrical Code® CMP-4 Member</div><div>(520) 204-6639<br><div><br></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Nov 11, 2025 at 8:03 PM Glenn via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div>Having opened and inspected dozens of rooftop installations, I can firmly say that anything inside a box of any kind on a rooftop will absolutely be exposed to moisture and often water. Whether it is humidity sucked in from thermal cycling, or gasket failure through UV degradation, or here in the north, snow and ice damage, it will happen.</div><div dir="auto"><br></div><div dir="auto">You will never convince me that it is acceptable to use any device there that does not have a published, traceable listing for outdoor use in that environment. </div><div><br></div><div>-Glenn</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Nov 11, 2025 19:30, Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" target="_blank">jason@floridasolardesigngroup.com</a>> wrote:<br type="attribution"><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div><div>We're talking about inside a junction box (NEMA 3R or 4, for example), not an "outdoor environment." Wagos (and other connectors like wire nuts, Polaris Taps, power distribution blocks, terminal blocks, etc) are allowed inside of a rooftop junction box, just like they are allowed in various switch boxes, enclosures, and cabinets that are suitable for the environment outdoors. </div><div dir="auto"><br></div><div dir="auto">For the same reason you can put circuit breakers inside of a NEMA 3R load center outdoors, you can use splice connectors of many kinds inside of a NEMA 3R enclosure. They do not need to be listed for "outdoors" because it is not outdoors. It's enclosed and adequately protected from the environment. </div><div dir="auto"><br></div><div dir="auto">In other words, any AHJ that challenges me on this, I just ask them to show me a circuit breaker that's listed for use in a wet location. That's usually enough to shut them down.</div><div><br></div><div><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida Certified Electrical Contractor EC13013208</font></div></div></div><br><div><div dir="ltr">On Tue, Nov 11, 2025, 7:11 PM Glenn <<a href="mailto:glenn.burt@glbcc.com" target="_blank">glenn.burt@glbcc.com</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div>I have not found a listing for Wagos in an outdoor environment.</div><div><br></div><div>-Glenn</div></div><div><br><div>On Nov 11, 2025 18:01, Jason Szumlanski via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br type="attribution"><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div><div style="font-family:arial,helvetica,sans-serif">We have had terrific success using Wagos in rooftop junction boxes for splicing #12 Enphase cable to #10 home run THWN. We have no issues whatsoever with these.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">Unfortunately, the #10 PV wire insulation is too large for the Wago 221-6XX series. We have been buying #14-#4 Polaris taps and it's getting very expensive. I would like an alternative.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">For a while we were using the King Innovation AlumiConn purple "suitcase" connectors for Enphase, but they are only 300V rated and I don't think the PV Wire insulation fits in those, either, for <300V applications. </div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">I have seen people using MC4 connectors in rooftop junction boxes like Blake suggested, but I wasn't sure if that is acceptable practice to use them this way (in an enclosure), and it does require a pretty large junction box. We prefer to use the EZ Solar JB-# series of boxes. The rail mount ones (JB-3) are pretty small, but the tile roof JB-2 is huge, and the shingle JB-1 is sizable as well. I guess if there is no prohibition against using them in an enclosure, then it should be allowed. I do like the watertight nature of this solution.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">I have seen some clowns using MC4 connectors with #10 THHN wire to make these splices. That's obviously no bueno. Crazy stuff...</div><br clear="all"></div><div><div dir="ltr"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:roboto,robotodraft,helvetica,arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida Certified Electrical Contractor EC13013208</font></div></div></div></div><br></div><br><div><div dir="ltr">On Tue, Nov 11, 2025 at 4:44 PM Dave Tedeyan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi Adam, <div>This response is just to you. Is NYSERDA the inspection agency you are talking about? Cause they have given me issues about using Wago Nuts inside a 3R box, even after I got a statement from Wago saying that it is okay to put it inside a 3R box. But squirting a bit of No-Ox in there seems to make them happy about it. The one time we put one inside a 3R panel board to extend a short wire and forgot to put No-Ox on that one, they gave us a 2 out of 5 on the inspection, even though that was the only thing noted in the entire inspection report! But I would be curious if the point you make above will work with NYSERDA?</div><div><br></div><div>Cheers, </div><div>Dave </div></div><br><div><div dir="ltr">On Tue, Nov 11, 2025 at 4:16 PM AE Solar via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><font size="2">We had an inspection agency that was giving us a hard time about using buchanan crimps in junction boxes because they aren't rated for outdoor/damp locations. The point was made (on this listserve) that "<i>if the inside of a 3R enclosure isn't considered dry enough for a buchanan crimp/cap, then there's millions of 3R panels with breakers and busbars in them that would have the same problem</i>". The inspection agency finally relented. We put a little No-Alox in the cap. I know that's not what your initial post was about, but tossing that in for consideration just in case...</font></div><div><font size="2"><br></font></div><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>Adam Katzman (he/him)<br>Autonomous Energies | Owner/Operator</div><div dir="ltr"><a href="http://www.autonomousenergies.com" target="_blank">www.AutonomousEnergies.com</a><br>(518) 567-1468<br></div></div><div dir="ltr"><br><br></div></div></div></div></div></div></div><br></div><br><div><div dir="ltr">On Tue, Nov 11, 2025 at 3:51 PM Jay via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div dir="ltr"></div><div dir="ltr">Hi Sam</div><div dir="ltr"><br></div><div dir="ltr">I can’t imagine being just copper it would matter, the AHJ might have a different opinion however </div><div dir="ltr"><br></div><div dir="ltr">Question. </div><div dir="ltr">How are you insulating them?</div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote>On Nov 11, 2025, at 11:15 AM, Sam Haraldson via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br><br></blockquote></div><blockquote><div dir="ltr"><div dir="ltr">Wrenches,<br><br>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.<div><div><br></div><div><div><image.png></div><br></div><div><br></div><div>Cheers,</div><div>Sam<br>  <div><div dir="ltr"><div dir="ltr"><table cellpadding="0" cellspacing="0" style="font-family:carlito,tahoma,sans-serif"><tbody><tr><td style="padding:0px 10px 0px 0px;vertical-align:top"><a href="https://onsiteenergyinc.com/" style="border:medium" target="_blank"><img src="https://cdn.prod.website-files.com/675cb4f269e8da457106c938/67acde8cf274634235411bdd_email-sig-logo-onsite-energy.png" alt="OnSite Energy" align="top" width="95" height="95" style="display: block;"></a></td><td style="padding:0px;vertical-align:top"><table cellpadding="0" cellspacing="0"><tbody><tr><td style="padding:0px 10px 0px 0px;vertical-align:bottom"><div style="padding:0px;color:rgb(81,76,160);font-size:14pt;font-weight:600;text-transform:uppercase">Sam Haraldson</div><div style="padding:0px;color:rgb(249,161,69);font-size:11pt">Operations Specialist</div><div style="padding:0px;color:rgb(81,76,160);font-size:8pt">(406) 551-6135</div><div style="padding:0px;color:rgb(81,76,160);font-size:8pt"><a href="https://www.google.com/maps/search/1515+N.+Rouse+Ave+Bozeman,+MT+59715?entry=gmail&source=g" target="_blank">1515 N. Rouse Ave Bozeman, MT 59715</a></div><div style="padding:0px;color:rgb(249,161,69);font-size:8pt">Locally owned and operated since 2012</div></td><td style="padding:0px;vertical-align:bottom"><a href="https://onsiteenergyinc.com/bcorp" style="border:medium" target="_blank"><img src="https://cdn.prod.website-files.com/675cb4f269e8da457106c938/67acde8cb918886086c8a0d5_email-sig-logo-bcorp.png" alt="B Corporation" width="22" height="33" align="bottom" hspace="2" vspace="2" style="display: block;"></a></td></tr></tbody></table></td></tr></tbody></table></div></div></div></div></div></div>
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