CDP UPO33-30PF365ii 30KVA/27KW Power Factor 0.9, Industrial Online Double Convertion low frequency three-phase UPS, zero transfer time, wide imput voltage range with zero voltage fluctuation at the output, autosensing 50/60 hz, Pure Sine Wave, 3:1 crest factor, SNMP compatible, Isolation transformer included, 20KA surge suppressor included, Immunity to phase rotation, double redundant power supply, DCS Processor, 3% THD, EPO emergency port, 4 HR recharge time to 90%, Automatic Bypass included, 5 wires (R, S, T, N, G), optional input / output voltage 400, 440 or 480 per request