About to receive a red ID4 Pro S in approximately a week. We used to have x2 Nissan Leafs from 2013, first with 3.3 kw onboard and later 6.6kw onboard. Went to check out now almost 10 year old EVSE setup and noticed that the stated draw is 30 amps for a max of 7.2 kw on 240v circuit. This worked flawlessly for our Nissan Leafs. However, I noticed that “back then” the electrician used 10 gauge wire and a 30 amp breaker that exactly matches the EVSE max draw. Which is a mistake in my opinion, should have been #8 wire and 40 amp breaker, but worked fine then for Nissan Leaf’s 6.6 kw onboard.
My concern is that since the ID4 is capable of accepting up to 11kw, should I upgrade the breaker to 40 amp to fully utilize the max draw of the EVSE at 30 amps (7.2 kw)? Would I need to also upgrade wire guage up to #8, even though the EVSE is rated at 30 amps, which would be a PITA. Lastly would the ID4 trip the breaker when plugged in with the current setup?
My concern is that since the ID4 is capable of accepting up to 11kw, should I upgrade the breaker to 40 amp to fully utilize the max draw of the EVSE at 30 amps (7.2 kw)? Would I need to also upgrade wire guage up to #8, even though the EVSE is rated at 30 amps, which would be a PITA. Lastly would the ID4 trip the breaker when plugged in with the current setup?