I bought a pack of these connectors a few week ago and set about testing them. It didn't say WAGO on them but they looked just like it. They have all European marks plus UL and CSA, so presumably they are sold on both sides of the pond. (90°C and 2.5 mm² max.)

Tricky to get the conductor in, but there is no risk of the conductor falling out. In fact, I think it is more vibration resistant than a wirenut.

Previously I've encountered another type of push-in connector, which the wire goes in easily but unfortunately out just as easily. [Linked Image]

But here comes the problem: How the h**l do you get the wire out? Twist back and forth and pull. Yeah, right. It goes out if you pull really hard and twist it simultanously. When I took the connector apart, the odd strand remains in the connector. If it had release buttons, like those on devices, it would have been much better than wirenuts or barrier strips.

{Goes off to invent the no-strip connector}

[This message has been edited by C-H (edited 08-10-2003).]