APC E3SUPS15KHB1 - 15kWatts 15kVA 400 V 3-Phase UPS with internal batteries 9 minutes runtime Input Voltage 304 - 477V Output Voltage 380 400 415V 3PH Output Voltage Distortion Less than 3% Output Voltage THD 3% linear load Maximum Input Current 18.0A Includes dust filter and conformance-coated boards for harsh environments Input, output, and bypass breakers are included Emergency Power Off (EPO) switch With the optional Network Card: Monitor UPS status remotely through a Web interface Parallel kit sold seperate to connect up to four parallel UPSs for capacity or redundancy Communication Interfaces. RS232, RS485, USB, Dry contact, Modbus TCP IP, optional Network Card Control Panel Multi-function LCD, status and display console Dimension 1400 * 380 * 928mm