... , DC high voltage or low voltageDC-bus over Voltage ProtectionYESGround Fault ProtectionYESIslanding ProtectionYES (comply with standard: VDE0126-1-1)ProtectionDC input ... voltage, over temperature protection, output over voltage, low voltage, islanding fault protectionOthersPanel DisplayLCD displays running information, LED indicates running statusCommunications InterfaceRS232 ...