Peter de Groot
Yes, the circuit breaker that is tripping is the Amel unit on the outside of the 220VAC box housing the panel.
We do not have a transformer for the 110VAC circuit. To get the 220VAC power from the shore pedestal, the previous owners adapted a North American 50A connector on the end of the Amel cable. So we feed 2 hot legs with no neutral.
La Querida, #207