1,Power range 0.25-2.2KW,220V; 0.4-400KW,380V 2,Overload: 150%, 2 minutes; 180%, 10 seconds 3,CE,ISO certification approved ... certification approved4,Built-in simple PLC,Built-in PID regulator 5,Continuous operation function at momentary power failure 6,Perfect fault ... input terminals and 25 output terminals for option 0.25-2.2KW 0.4-400KW powerful inverter for fan, pump water inverter