They look like the Ideal In-Sure® Model 33, www.idealindustries.co.uk/product/12/204/67899/.html which are 32 Amp rated, so one can assume there was a problem with the wire not being fully inserted or something?

The Ideal 2, 3 & 4 way ones are 32 Amp, which is why I use them, as they can be used for ring main cables.

So can a 20A as generally a ring final circuit is designed around the assumption of a load at 20A at the furthest point of the circuit and the remainder to the rating of the over current protective device evenly distributed around the ring final circuit.
 
So can a 20A as generally a ring final circuit is designed around the assumption of a load at 20A at the furthest point of the circuit and the remainder to the rating of the over current protective device evenly distributed around the ring final circuit.
Surely if the ring provides power to the kitchen & utility, then someone further down the line does something wrong to break the ring, which is not picked up until the next EICR if they bother to have it done, then those poor little 20 Amp connectors will be the weakest link & will fail before the fuse or circuit breaker disconnects?
 
Surely if the ring provides power to the kitchen & utility, then someone further down the line does something wrong to break the ring, which is not picked up until the next EICR if they bother to have it done, then those poor little 20 Amp connectors will be the weakest link & will fail before the fuse or circuit breaker disconnects?
same could apply to a 32A wago/ideal/hellerman push in connector.
 

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Les Macaulay,
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coolsparx,
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