Since building projects involving the installation of multiple wall chargers depend on individual characteristics, we cannot offer you a specific recommendation. We recommend an in-person analysis by a qualified electrician.
However, generally, the maximum number of wall vchargers at a single site will depend on the available outlet connection and a permit from the supplier (requested by an electrician). Our three-phase wallbox generates 16 amps / 11 kW. In an ideal scenario, the outgoing connection is encrypted by a factor of n. Alternatively, solutions such as separate dynamic load management with power chokes or DIP switches can reduce the dynamic or static load of the wallbox to prevent overloads. The load capacity of the wall charger  is reduced on the basis of the settings.
If you still need help, click here to learn more about the charger by Ohme.