Are Hager MTN MCBs backwards compatible with Hager MT MCBs? EVSE consumer unit upgrades.

From a practical point of view I look at older split load consumer units and think there’s a spare non-RCD way that may be suitable for an EVSE supply, but then see a five year old dual-RCD split CU and think it actually isn’t at all suitable.

From a practical point of view I look at older split load consumer units and think there’s a spare non-RCD way that may be suitable for an EVSE supply, but then see a five year old dual-RCD split CU and think it actually isn’t at all suitable.