Residual Current Device (RCD) of the category required by general European standard as a minimum for electrical installation of fixed charging stations (can be lacking in some countries with more demandning regultions) - wallboxes.
We recommend for installation of wallboxes up to 3x25A
The type A circuit breaker is a suitable and economical variant for the safe installation of wallboxes with the function of detecting residual direct currents, e.g. as EVmate. Wallboxes equipped with such protection are usually more expensive than chargers without this safety feature.