Bill those are another kind of 'Wagos'

[Linked Image from idealindustries.com]

There are UL listed and could be used for the splice the opening post asked about.

I will not use them.

Back stab receptacles where / are UL listed also and their history of failure is high enough in my mind not to use them either.

I have a hard time believing that the small piece of spring steel that makes contact with the wire makes a connection as reliable as a properly installed wire-nut.

That is just my opinion and how I choose to work, as I said earlier to each their own. [Linked Image]

Bob

Bob Badger
Construction & Maintenance Electrician
Massachusetts