... IGBT 2.N+X redundant,Hot-swap,green UPS 3.high reliablity,availability,efficiency SICON-EMI Power System CO., Ltd. Is ... efficiency (≥95%), high stability (N+X redundancy) and extremely high cost-efficiency.POWER RANGESystem capacity:3 KVA -36KVA, 5KVA-180KVA, ... the distributors and the users. And the maintenances of the UPS is very easy, just with the power module changed. pure sine wave online UPS