NO WAY!! (about no enclosure required) states that the connection and cables need to be protected. So connector doesnt comply in its own right and the bits of cable where the sleeving is stripped of requires protection........thats the reason for a JB!!
Now I'm in no way saying this is right or wrong but having used these wago's I see where everyone is coming from.
Lets play devils advocate:
JB - What is it? not asking for a description but lets break it down, there are terminals, and a plastic mould to hide the terminals. gererally speaking thats what it is.
Right
Wago's - what is it? Same again, terminals covered in plastic to protect the terminals?
Can you pull a cable from a JB -mmmm I'd have to say yes as the cables are not secured within the housing of the JB.
Can you pull a cable from a Wago - mmmm debatable but doubtful, however if the cables are within a wago box and its been put together properly, you ain't got a chance.
Will they ever be classified as a permanent joint I doubt it very much! IMO.
To be honest in the technical sense of the word there not a permanent joint as they can be taken apart. But there the nuts and a great time saver used correctly and in the right place (as in an enclosure)
@ eletricalserv - there just like a connector block only better and quicker and safer! IMO.
Only thing wrong with them I think has been said before - they need a bigger portal built in so you can test to GS38