My breaker does the same but only when it’s cold outside. What did you replace it with @philhimsworth?When we first got our Zoe they installed the wrong breaker for the charger so it would trip after a while. I would reset the breaker and it would work again.
Several times the breaker would trip in the evening but I wouldn't reset it until the morning, hours later, but it would start charging again without problem. How did it do this?