FWIW, while I know the USA isn't the UK, in the USA, for a 32A device like an EVSE, it requires a 40A circuit. In the USA, for a circuit that is expected to be on over a certain time factor, it must be derated to 80%, so to get 32A out (potentially, continuously for awhile), it DOES require a 40A circuit. The basic engineering on this is universal, so it's not country specific, but implementation may be spotty. Many breakers won't trip immediately when you've exceeded their current listing, but will over time. That curve can be specified by the manufacturer, and unless there's a sharp peak, verses a continuous level, momentary loads could exceed sometimes as much as 300-400% or even higher than their long-term rating before they trip. FOr a 32A device, being asked to supply 32A could trip long-term. In the USA, the circuit breaker is designed to protect the wiring, not the device itself. But, when it is inside of the device, that should be designed to allow the device's full normal output, and only protect it if that is exceeded. Typically, that also will be higher than the actual load. In the USA, my EVSE does not have a fuse or circuit breaker in it...it does require some protection on the wiring leading to it, but there's nothing wrong with that to be significantly higher capacity than the actual device connected. IOW, my wiring to the EVSE could just as well be sized and protected to be 200A, while the EVSE only draws 32A. Europe tends to put fuses in the device (and there are some in some devices sold here), but primarily, from the plug on the wall to the device, there is no further protection than what is there to protect the dwelling's wiring. I'm not going to get into which way is better...it is what it is.
Assuming that the car is working properly, it won't try to draw more power than the EVSE is reporting it has. The EVSE could be miscalibrated, but in this case, since the i3 itself won't ever try to draw more than about 32A because of the internal power supply design, even if the EVSE was miscalibrated, it shouldn't trip the unit.
All of that being said, if the EVSE trips a power safety device, it is almost certainly not the car's fault.