It's a 3 phase commando socket. Model Y UMCs in Europe don't support 3 phase (older ones on the MS and MX did) so you'd probably need a convertor to pick off one phase and then the 16A commando adaptor for your UMC.
Commando sockets change size depending on current, you can get 16A and 32A versions for the UMC. Make sure the car doesn't try to take more than supply can deliver when using convertors.
If you need more info, I'd ask in one of the European subforums, just pick one thats quite active.