Power failure often results in data loss to a greater or lesser extent. To achieve high data security is important to servers never shut down when data is treated - even if power fails. This UPS can most servers kept running in the time required to shut down the system properly. With 1 pc. battery pack has UPS runtime of approximately 6 minutes at full load. The operating time can be extended by using up to four battery packs (3 extra), a total of ca. 24 minutes of durability at 1500 W. Each battery pack delivers 2500 VA. Should servers or the entire network last longer, may be an emergency power generator with the UPS.