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MK Logic Plus Rapid Fix Sockets (built in "Wagos")

No idea ... but it's been 'on my shelf' for many years, although I can't recall where it came from or why I happen to have it. However, as you've seen, the L and N connector blocks are coloured red and black, which probably means that it is pre-harmonisation - hence at least 20 years old..

Hang on ... I'll see if it is still there :) ....
... yep, it is :) It looks totally unused, but bears very few markings - certainly no indication of the manufacturer. Other than L, N & E markings it has just "Made in England", "PROV PAT" (which I guess probably means "provisional patent"?) and, interestingly for a double socket "13A".
Quite an old one, never seen one with terminals like that and the old colours.

Probably

Thanks.
 
Quite an old one, never seen one with terminals like that and the old colours.
Indeed. I'm far from sure that I've ever seen one other than the specimen I have.

I'm a little surprised that it didn't 'catch on', given that it seems quite a good idea (although it would be a lot better if the connector blocks had at least three terminals).
 
@JohnW2
I think that may be a version of a socket made by RPP and sold at the time via CEF wholesalers.
Though i seemto recall the terninals were a bit rubbish and not to secure so nver usedthem again
There web site even claims they introduced twin coloured terminals back in 1976, though yours i assume is the 1990s
 
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Well I just bought some rapid fix sockets and my conclusion is that for small fine-stranded conductors (I tried some 0.75mm mains flex and some 0.4mm test lead wire which I had handy) the wago style terminals are far far better than the massive screw terminals on regular sockets.
 
Yes, I think that's one of the greatest weaknesses/'dangers' with any sort of 'sprung' terminal. There will always be a conductor size below which contact will not be satisfactory, and the user will not necessarily know (or think about) what that minimum might be.
Indeed. Mind you, as for 'testing for torque', as I have often observed, if I tighten terminal screws on 'protective devices' to the manufacturer's torque, I often find that they feel frighteningly loose to me (can often easily get at least 'half a turn more' manually). However, maybe that's just me!

Kind Regards, John
Ditto
 

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