In fairness very, very few existing DBs would be suitable, and they would also be unlikely to stock all different types/makes of protective device. Many brands don't have double pole switching RCBOs in a single module, which will rule many boards out.
In fairness I would suggest that it's very common for socket-outlets nowadays to be DP switching, although it was certainly much less common in the past.
If you can afford to pull more than 60A constantly through the night then you should probably just rapid charge your EV rather than fit a chargepoint, and heat your house by burning banknotes in an open fire.
RD415 cable is used in the south of Ireland for domestic smoke/CO detector installations.
It has a pink sheath.
And, contrary to your beliefs, it is absolutely used for smoke alarm installations despite not being used for other purposes.
An oldish thread, but here's an example:
https://www.boards.ie/discussion/2058108505/andy-from-sligo?utm_source=community-search&utm_medium=organic-search&utm_term=andy+from+sligo
Hager may not be the best option for that, as their single module RCBOs do not break the neutral, which is a requirement for a circuit supplying an EVSE.