Wait a second, further explanation please? The UMC gen 1 can't go any higher than 40A. So it can't draw 48A from the outlet to trip the breaker, no matter what the car asks for.Just received a replacement gen 1 UMC cable today, my second. 9 months old MS 75D. Logs showed issue with the cable.
I noticed a few times that the charge rate on the MCU increases to 48amp despite manually setting at 32 amp. This trips the 50amp breaker.