... capacity:3 KVA -36KVA, 5KVA-180KVA, 10KVA-200KVA, 20KVA-480KVAPower module: 3KVA, 6KVA, 5KVA, 10KVA, 15KVA, 20KVA MODULAR STRUCTUREThe UPS system ... is real modular structure. Each power module functions as a unique UPS uniteRedundant updateable system: N+X ... of the UPS is very easy, just with the power module changed. UPS for computer