Primarily protect against three of the nine power problems including power failures, power sags and power surges. This basic protection is necessary in order to prevent damage such as data loss, file corruption, flickering lights, hardware damage, and equipment shutoff. For example, if your utility fails you could lose all of your work in progress. Series 3 UPSs offer a degree of protection against other power problems and are most commonly used to protect single workstations.
Models available: 3105, 3115
Series 5 UPSs are most effective against five power problems (power failures, power sags, power surges, undervoltage and overvoltage) and offer a degree of protection against other power problems. Some of the damages you risk by
not using a Series 5 UPS include premature hardware failure, data loss and corruption, data error, keyboard lockup, storage loss and system lockup. Series 5 UPSs are recommended for small network systems – all the way up to enterprise networking environments.
Models available: 5110, 5115, 5115RM, 5125
Series 9 UPSs protect against all nine power problems: power failures, power sags, power surges, undervoltage, electrical line noise, overvoltage, frequency variation, switching transients and harmonic distortion. Powerware Series 9
comprehensive protection prevents all of the damages mentioned earlier as well as component stress, burned circuit boards, data crashes and program failures. Series 9 UPSs offer the highest level of power protection available and are always recommended for mission-critical applications like server farms and hospitals.
Models available: 9104, 9120, 9125