Easy UPS 3S 20 kVA 400 V 3:3 UPS with internal batteries - 15 minutes runtime. , E3S_Parallel, E3S_TempSensor- ,white Colour . 400V 3PH Input Voltage : 380/400/415 V (Three-phase + Neutral) Input power factor >0.99 Efficiency: Double conversion mode Up to 96% Communication interface : RS232, RS485, USB, dry contact, Modbus TCP/IP, optional network card Control panel: Multi-function LCD, status and display console