Wago 221-415 Lever-Nuts 5 Conductor Compact Connectors 25 PK

I purchased the 2, 3 and 5 terminal versions of these. Like many others, I think they are a major advancement over wire nuts. Also, for many tasks these are much better than other push-in connectors because it's so easy to un-do and re-do the connections - this is helpful not just for electrical purposes but also for changing and re-routing the tangled nest of wires inside a crowded box. Some push-nut connectors have release mechanisms, but they can be much harder to use than the handy little levers on the Wago nuts.Another benefit of the lever-nuts is that you can easily test a connection before you finalize it, and there is no twisting & untwisting in the process, nor any need for separate clip leads etc. Some professional electricians might do this on the fly with the power on, but as a DIYer I never risk such testing with live house wiring. Set up proposed connection temporarily using the lever-nuts, go turn on the breaker to verify correct operation, then turn it off again and do the final cutting, stripping, connecting and box-packing.The next version I'd love to see would be double-row versions for six or eight wires - explained below.I've been converting most of the switches in my home to Z-Wave smart dimmers and switches. The two major issues with those are 1) the body of the device is much larger than the simple switches they replace, and 2) they require a Neutral pigtail to each switch. The small size of these Wago connectors makes it easy to push them back into the box, out of the way of the large smart-switches. Now, for the Neutrals, I sometimes use these Wago lever connectors to add the new pigtails, but often I need to add two Neutrals to an existing four- or five-wire bundle twisted together in a large wire nut. What I do then, is to un-twist the bundle, carefully separate and straighten the copper ends, and insert them into a push-in connector along with the new white pigtail wire(s). This is where the five-conductor Wago lever connectors can be inadequate - first because I sometimes need six or more positions, and second because spreading out all the wires in one long row is not always a good arrangement in the box. So in those cases, I use a two-row six or eight-position connector and do without the handy release-lever feature. Note that the Wago brand push-nuts (wall-nuts) are very good also, though other brands will do a similar job.Am important note when using push-ins vs. wire-nuts: I've found that when the wires are not twisted together as with a wire nut, there can be a lot of stress that tries to pull on individual wires, and this gets especially unpredictable when smashing a big wad of wires and connectors back into the box. So what I do is to pinch the bundle together and tighten it up with a nylon zip-tie about 1/4" to 1/2" (say 1cm) from the connector. This makes a strong bundle like wire nut would do, but it's shorter, smaller and a lot easier to modify later.

Wago is a great connector and it is reusable with little to no damage to the wire. Better than other brands

Great quality last

These work very sell for electrically connecting wires.

These connectors work great. If you need to change something they easily reconnect. They also save space in the box.

I'm building out parts of my unfinished basement, and doing the work myself so it will be completed in stages. I'm wiring in a few new circuits that will need to be active before all of the portions of the basement build-out are complete. Without this style of connector, I would be forced to remove the existing wire nuts to add any new branches as I reached subsequent stages. If doing this properly, that could entail disassembling an existing connection to properly add the new one back in, which, while acceptable from a code perspective, is certainly more complicated and less convenient. With these connectors, it's almost like you've energized an individual buss, and you're simply terminating new leads onto those busses. Now you can add the new branches one at a time without disturbing the original connections. They're not cheap, especially compared to conventional wire nuts, but the speed and convenience is hard to deny, and their application in an incremental branch addition situation like mine makes them well worth the price.

works as expected.

My son introduced me to these "next generation" wire nuts. When you have more than 3 wires to connect and you are losing your mind with the old jumbo twist-type wire nut where you can't keep all the wires lined up and one keeps popping out, the Wago lever-nut is just an amazing improvement. Put a wire in, snap it down. Put the next wire in, snap it down. Soooo much easier. They cost more, so you wouldn't want to wire a whole house with them, but for those tight boxes with short wires and 4-5 wires all needing to be connected together, these will save your sanity.

Ótimo produto, encaixe perfeito dos fios, ótimo encaixe.Fica visual agradável e organizado.

Ich habe die WAGO 221-415 Klemmen für die Erneuerung der Elektroinstallation in meiner Werkstatt gekauft, um mehrere Abzweigdosen und Leuchten sicher miteinander zu verbinden. Das transparente Gehäuse erweist sich im Praxiseinsatz als geniale Neuerung, da man auf einen Blick kontrollieren kann, ob der Leiter weit genug eingesteckt und korrekt abisoliert ist. Die Hebelmechanik lässt sich spürbar leicht bedienen, ohne dass man sich die Fingernägel abbricht, schließt aber dennoch extrem fest und zuverlässig. Ein großer Vorteil ist die hohe Flexibilität: Sowohl starre als auch feindrähtige Adern bis zu einem Querschnitt von 4 mm² lassen sich problemlos und werkzeuglos in derselben Klemme kombinieren. Bei Bedarf kann eine Verbindung ebenso schnell wieder gelöst werden. Als einziger kleiner Nachteil ist der etwas höhere Preis im Vergleich zu einfachen Steckklemmen zu nennen, was durch den enormen Zeitgewinn und das hohe Maß an Sicherheit jedoch mehr als wettgemacht wird. Für mich gehören diese Verbindungsklemmen mittlerweile zur absoluten Grundausstattung. Wer sauber, schnell und kompromisslos sicher arbeiten möchte, trifft mit der 25er-Packung eine hervorragende Entscheidung. Eine klare Kaufempfehlung!

Rien à dire c'est du WAGO

Great connectors. It is so much easier to use them than twist caps. They are definitely worth the higher price

Probabilmente troverete qualche elettricista riluttante ai cambiamenti che vi dirà che sono molto meglio i mammut o i cappellotti. Altri invece lo ammettono: sono molto meglio. Io mi trovo molto bene. Ho rifatto tutte le scatole di derivazione: non serve cacciavite, tengono benissimo, pochissimo ingombro, è indifferente “unire” cavi di sezione diversa (a volte può capitare). Sono molto veloci da montare. L’anima in rame non viene maltrattata da avvitamenti e compressioni... se avete un mazzetto di 7 masse da unire va benissimo quello che usate ora. Io li trovo facili, efficaci e soprattutto veloci da installare e comodi da maneggiare (faretti entra/esci, lampade o lampadari al posto dei mammut, li ho usati anche in giardino con nastro isolante autoagglomerante)... molto soddisfatto finora. Spero che il “meccanismo” che stringe i cavi nel tempo non si allenti...