... transformer. LCD display protection:input power,output power;input voltage,output voltage, input current ,output current; ... :grid tie inverters 50kw triple power frequency Model50KwInputMPPT voltage range DC 100~450VRated voltageDC 360VControl ... methodNatural coolingNoice<60dBData interfaceExternal RS 232 ProtectionInverterInput over voltage, output short circuit, overload, overheatGridAnti-islanding ...