... superior load capacity,Perfect protection fuction:overload, short circuit, low battery voltage, improper operation etc,which ... and protection 7.Srong load-taking capacity 8.low self-consumption on no load state ... three phase load at the same time 10.LCD display and buzzer tips . 11.Adopting SMT ... Wave formPure sine waveTHD≤3%Protection functionoverload,short circuit,low battery voltage,high/low AC mains ...