"Jim K" wrote in message
...
Dave W

No apparent way in!

Moulded brown plastic with 3 terminals.

How come contacts welded with a 30ma rcd installed & working?

Well 30mA is (roughly) the minimum that will trip a RCD, the RCD does not
limit the current to 30mA in the event of a direct short. There was probably
6000A flowing when the RCD and MCB tripped.

Anything in here to help you?
http://www.electrium.co.uk/CrabtreeWADCP2010.pdf



--
Adam