Microtek Online Ups Max 20kva 360V Three Phase In and Three Out Features and Specifications : Model i-MAXX Transformer Based Online UPS Capacity 20KVA / 16KW DC Voltage System Default: 360VDC, Adjustable: 348~384VDC Phase 3 Phase In ~ 3 Phase Out Input Specifications Nominal Voltage 3x360V / 380VAC / 400VAC (3Ph + N) Acceptable Voltage Range 285VAC ~ 485VAC Frequency Range 50Hz ~ 60Hz + 10% Output Specifications Nominal Voltage 3x380VAC / 400VAC + 1% (3Ph + N), 415VAC (Adjustable) AC Voltage Regulation +1% (Battery Mode) Frequency Range Mains Mode (Synchronized Range): 50Hz + 1Hz, Battery Mode: 50Hz ~ 0.1Hz Power Factor / Crest Factor 0.8 / 3.1 Total Harmonic Distortion <2% (Linear Load), <5% (Non-Linear Load) Transfer Time AC to DC Mode Zero Inverter to Bypass Mode Zero Overload Capability 150% for 60 seconds, >160% for 200 milliseconds Waveform Battery Mode Pure Sinewave Static Bypass Overload / Short-Circuit Capability: 150% for 1 hour; 180% for 30 seconds; >200% for 200 milliseconds Connection Type / Input Voltage Range Solidstate / 3x380VAC / 400VAC (3Ph + N) Efficiency AC Mode Efficiency 90% Battery Mode Efficiency 89% Battery & Charger Recommended Battery Type Lead Acid / Tubular / SMF, Default: 30 Nos. (Adjustable: 29, 30, 31 & 32 Numbers) Battery Charging Current Default: 5A Maximum = Capacity (KW) x (1 - %load) / Battery Voltage Management USB and Modbus RS-232/RS485 Supports Windows® 2000/2003/XP/VISTA/2008/7/8, Linux, and Mac Dry Contacts / SNMP (Optional) 6 OUTPUT AND 2 INPUT / Power Management from SNMP Manager and Web Browser Environment Operating Temp. / Humidity / Noise Level Temp: 0~55°C / Humidity: 0~90% (Non-Condensing) / Less than 60 dBA @ 1 Meter Physical Dimensions Product (LxWxH) 656 x 405 x 817 (in mm) Net Weight Product (Kgs) 166 Kgs.