Protective devices which are required for EV chargers can be either RCBO or MCB+RCCB.
For 1P 16A => 3,7Kw load protection devices = 20A curve C + type B 30mA ( A9F54220 + A9Z51240)
For 1P 32A => 7Kw load protection devices = 40A curve C + type B 30mA ( A9F54240 + A9Z51240)
For 3P 16A => 11Kw load protection devices = 20A curve C + type B 30mA ( A9F54420 + A9Z51440)
For 3P 32A => 22Kw load protection devices = 40A curve C + type B 30mA ( A9F54440 + A9Z51440)
The circuit breaker value (20A or 40A) depends on the cable size, length and environmental parameters (up to the electrician)
For further information see:
https://www.se.com/au/en/product-subcategory/80408-evlink-charging-station/