3-5-9 - It's so easy to choose the right UPS!
The proven 3-5-9 voltage protection concept focuses on the nine most common voltage problems. This gives you the opportunity to precisely define your voltage protection requirements and considerably simplify the selection of the right UPS (uninterruptible power supply).
UPS of protection class 3 (offline) for work PCs individually or networked, workstation in the office or at home, cash register systems. The UPS designed for desktop use are compact, quiet and space-saving. They offer protection against the three most common voltage problems: Power failure, voltage dip and voltage surges.
UPS of protection class 5 (Line Interactive) for the medium protection level. Main areas of use are office and departmental servers, LAN systems. Protection class 5 UPS protect against the first three voltage problems as well as temporary overvoltage or undervoltage.
Protection class 9 UPS (online) for the highest protection level. The main areas of application are servers with critical databases, data centres, web hosting systems or systems with permanent voltage problems. Critical systems are sensitive to voltage fluctuations, do not tolerate downtimes and require the highest possible protection. Protection level 9 UPS provide protection against the nine most common voltage problems: power failure, voltage dips and surges, temporary over- or undervoltage, switching peaks, interference voltages, frequency fluctuations, harmonic harmonics.
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