... UPS System 1. True online double conversion 2. Pure sine wave output 3. With manual bypass 4. UPS, ECO, EPS Mode Three Phase Double ... in low-frequency and large power UPS.Production Range: UPS, three phase (10kva~800kva), single phase(300va~20kva), three phase in and single phase out(6kva~80kva), online and line ... manufacture processes and packages all are based on world's first class standards. We have ...