EVSEs generally shouldn't be supplied from a 32A protective device. A 40A is far more appropriate as you do not want a device operating at its full rated capacity for many hours at a time.
RCBOs aren't RCCBs. RCD is the umbrella term, but an RCCB does not have overcurrent protection so can be used to distinguish between RCCBs and RCBOs. That's why I tend to use the term RCCB to refer to those devices.