... China. They are widely used in different fields, including electric power, science institute, national defense, telecom, finance, insurance, aviation, ... MODULAR STRUCTUREThe UPS system is real modular structure. Each power module functions as a unique UPS uniteRedundant updateable system: ... line upgrade and expansion with the adding of the load.FLEXIBLE POWER SOLUTION220V,230V,240V; 50Hz,60Hz; 3/3, 3/ ...