RM Series Rack-Mounted Modular Online UPS 5-20kVA (380V/400V/415V) is a single-phase modular UPS that can be configured with up to 6 power modules(maximum 20kVA), 5 groups of battery modules, and optional 10A charging module. It can be flexible configured to 1 phase in and out without deration to satisfy various projects requirements, compatible with all kinds of 19” standard sever cabinet. The whole product is a complete tower modular UPS system, especially suitable for small and medium server rooms.