Yeah John,
You're right!.
There is not a lot you can do about these things.
The multi-boxes here do have an MCB in them, but what thier Time/Current characteristic is like I'm not sure.
BTW, here's a picture in case anyone is wondering what I'm on about:

[Linked Image]

The Red dot next to the cable entry is the Overload MCB.

{Message edited to add last comment}

[This message has been edited by Trumpy (edited 01-04-2005).]