What electrical protection devices to use for home ev chargers

Hello folks, I have taken nch and will be using 3.2 kw portable charger. As Mahindra doesn't provide any charger setup for 3.2 kw kindly suggest what all safety devices to put apart from mcb. Length of wire I'll have to use is approx 20 to 30 meters from meter to parking.. Planning to use 6 Sq mm with a 16 amp socket and 25 amp mcb.. What other electric devices should be used for 3.2 kw like rcbo etc kindly suggest along with electric rating/configuration.