... module: 3KVA, 6KVA, 5KVA, 10KVA, 15KVA, 20KVA MODULAR STRUCTUREThe UPS system is real modular structure. Each power module functions as ... 3/1, 1/3, 1/1GREAT PERFORMANCE INDEXOverall efficiency ≥ 95%, inverter efficiency ≥97%,THDI ≤ 3%, and input PF≥ 0.99Little weight ... and the users. And the maintenances of the UPS is very easy, just with the power module changed. pure sine wave online UPS