The 9900B UPS System
The 9900B UPS system uses the most advanced IGBT (CSTBT) modules within its fully digital, three-level converter and inverter. The unique combination means that the 9900B UPS offers superior reliability, performance and is the most efficient true on-line double conversion UPS in the industry at all load levels.
The 9900B Series UPS will deliver as much as 97% system efficiency at unity power factor. This substantially reduces operating and cooling costs by several thousands of dollars annually when compared to its competition. Efficiency ratings of 96.2% are possible with loads as low as 25%. The result: reduced cost of ownership and improved power usage effectiveness compared to conventional UPS.