Every meter box consists of a 1-phase or 3-phase connection. To find out which connection you have, there are two ways.
On the electricity meters it says 220/230V, then you have a 1-phase connection and with 3-phase it says 3x 220/230 or 380/400V.
Look at the energy statement from your energy supplier.
There are different charging stations available for both 1-phase and 3-phase.