China Uninterruptible Power Supply Ups Size: Giant 3-phase in/3-phase out Online UPS Sell point 1. Online double-conversion online ups system 2. Dsp technology guarantees high reliability uninterruptible power source 3. True galvanic isolation transformer design industrial uninterruptible power supply 4. Control designed to withstand all kinds of loads 5. Intelligent battery management to prolong battery lifecycle 6. Independent ventilation and redundant fan design enhance durable operation under harsh environment 7. Parallel operation with up to 4 units (option) 8. Variety of communication options available. Model 30k CAPACITY 30kva/24kw INPUT Nominal Voltage 3*380VAC/400VAC (3Ph+N) Acceptable Voltage Range 305VAC -460VAC Frequency 50/60HZ+10% INVERTER Nominal Voltage 3*380 VAC/400VAC (3ph+N) Precision Stationary+1% Max.Synchronisation Speed +1HZ/S Waveform Pure Sinewave Total Harmonic Distortion 2%(Linear Load);5%(Non-linear Load) China Uninterruptible Power Supply Ups website:http://www.zcsci-tech.com/ups-power-supply/uninterruptible-power-supply-ups/