| | | There are nine common types of power problems. See details on the graph on the left. The 3-5-9 concept will tell you what types of problems you can avoid with which solutions, and in which environment each solution is the most useful. This is a big help when you're assessing your protection needs. Series 3 for non-critical applications Basic solutions to protect non-critical hardware and data against three of the nine power problems. These UPSs operate in standby mode. Series 5 for higher protection level Intermediate solutions for office environment and servers featuring good communication options. These UPSs operate in line-interactive mode and provide protection against the five most common power problems. Series 9 for full power protection These double-conversion UPSs with excellent connectivity and communication features provide full protection against all nine types of power problems. | | Product overview......................... Power protection as easy as 3-5-Hardware Series 3 (single-phase units) ... Series 5 (single-phase units) ... Series 9 Single-phase units............... Three-phase units................ Software and connectivity.......... Services........................................ Feature focus................................ UPS selection guide.................... | | |