Finally found one!

[RF Lighting]

All these posts we get on here about how an RCD or a circuit breaker won't reset, so it MUST be the device thats gone faulty and it couldn't possibly be the wiring that it's protecting.

I finally found one of these mythical devices!



Top quality wylex yet again

Oh and there were four recalled breakers in the board too

 

[jj4091]

Oh and there were four recalled breakers in the board too

How did you recognise them? I've just had a letter from a supplier telling me that I bought one that is subject to recall but I'm b*****ed if I can remember where I fitted it. I'm thinking I'll have to go round checking a few places. The helpline aren't much help they just gave me the model NSB16 & the approx dates they were fitted.

 

[RF Lighting]

You need to look out for the older style circuit breaker casing that looks like this:

If you find any you need to take it out of the consumer unit and printed on the side of the circuit breaker is a six digit date code.

If the last four digits match any of the codes below then it needs to be replaced

 

[ericmark]

I have had RCD's which either would not reset or tripped on a regular basis. Putting the meter on the RCD failed to show it as faulty and using the insulation tester on the installation also failed to highlight any faults.

However changed to RCD and no more problems.

I have blamed spikes on the spikes on the supply and assumed one was better able to handle spikes then the other.

But what does one do with the RCD removed? Clearly returning it is no good as it passes all tests. But neither do you want to fit it in any other installation when you know it tends to trip.

I have also had it where the strain exerted by the cables is enough to cause it to trip or not to trip again a problem where under guarantee.

With distribution units selecting a know good make is the way forward but with consumer units the type testing will not allow one to fit other makes. Changing a whole CU because you don't like the make of RCD is going a bit OTT. So what is the answer?