On 20/07/2019 14:12, Mike Clarke wrote:
On 20/07/2019 13:34, Andrew wrote:

Would you trust a 'maintenance free' connector, like Wago ?.

Somehow I suspect that the plastic that these are made of will become
brittle with age and silently release its grip, decades down the line.

They don't appear to depend on the plastic to maintain the pressure on
the joint. Even if you strip away the plastic housing it looks like the
springy metal would still hold the cable ends securely together.

But does the springy metal rely on the integrity of the
plastic housing to maintain its pressure on the cables ?.