What is the "Main Breaker Limit" in X3 ULTRA used for?

Due to power limit, the current of Meter or CT must be abide by the utility's requirements. You can set the corresponding amperage according to the utility's requirements. Failure to set the current may cause a circuit breaker fault of main switchboard, thus affecting the charging and discharging of battery. The default value is 100 A, range: 10-250 A. Setting path:Main → Settings → Advance Setting → Main Breaker Limit