Legalább A típus kell.

https://plus.google.com/u/0/115939891050304348294/posts/MS4dEQW7i3p

https://hu.m.wikipedia.org/wiki/%C3%81ram-v%C3%A9d%C5%91kapcsol%C3%B3

kimondottan EV-hez való: cc. 250EUR

https://www.doepke.de/en/products/protect/residual-current-circuit-breakers-rccbs/type-of-residual-current-a/for-electromobility/09134818/