help in understanding RCD ratings

[hidex1213]

until not only one person refused to take a 40A RCD instead of a 32A one for the same price...

You read it just right.
Most of them would tell me things like "cuz the MCB is 32A only and they gotta match" or "oh I don't want the amp rating to be so high"...
when I asked "why?", they'd all seem to get tipped off and refuse to continue the conversation.
NOW I think they simply don't know what they're saying...

 

[Deleted member 26818]

There's actually a few "electricians" out there, who believe that 100A main switches will trip at 100A.

 

[hidex1213]

In case you haven't seen enough around