Hi Christian, I don't have any such issues in my 382. However, and you probably know, but just in case you didn't know, there is an RCD box hidden at the aft end of the port cockpit locker, on the other side of where the shore power connects. Its cover is easily broken and the trip easily knocked with stuff in the locker…
Regards
Nigel
The membership association for owners of Dufour Yachts