<div dir='auto'><div>Are often plugged with debris, algae, even if made, and most 3R enclosures are already provided with weep openings. </div><div dir="auto"><br></div><div dir="auto">As an industry, installing to meet minimum requirements should never be a platform we stand on. Experience, education and shared knowledge allow us to do better.</div><div><br></div><div data-smartmail="gmail_signature">-Glenn</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Nov 11, 2025 22:28, William Miller via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br type="attribution" /><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">Weep holes. It’s allowed. <br clear="all" /><br clear="all" /><div><div dir="ltr" data-smartmail="gmail_signature"><br />William Miller<br />Miller Solar.com<br />805-438-5600<br /><a href="http://www.millersolar.com">www.millersolar.com</a><br /></div></div></div><div><br /></div><div><br /><div><div dir="ltr">On Tue, Nov 11, 2025 at 7:06 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 style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;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 data-smartmail="gmail_signature">-Glenn</div></div><div><br /><div class="elided-text">On Nov 11, 2025 19:30, Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com">jason@floridasolardesigngroup.com</a>> wrote:<br type="attribution" /><blockquote style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;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 data-smartmail="gmail_signature"><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">glenn.burt@glbcc.com</a>> wrote:<br /></div><blockquote style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>I have not found a listing for Wagos in an outdoor environment.</div><div><br /></div><div data-smartmail="gmail_signature">-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">re-wrenches@lists.re-wrenches.org</a>> wrote:<br type="attribution" /><blockquote style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;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">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">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">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">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">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"><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">1515 N. 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