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UPS Sizing Guide: How to Calculate What You Actually Need

An uninterruptible power supply (UPS) is your last line of defence against power outages, surges, and sags. But choosing the right UPS is not as simple as picking one off the shelf. This guide walks you through calculating your actual power requirements, understanding UPS types, and selecting a unit that will keep your systems running when the mains go down.

26 Feb 2026
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