UPS Size Guide: How to Select the Right Capacity
Choosing the correct UPS size is essential to ensure your equipment remains powered during an outage. The right UPS capacity depends on the total wattage of connected devices and the required runtime. A UPS should provide at least 20-25% more power than your total load to allow for efficiency losses and future expansion.
To calculate the correct UPS size:
- List all devices you want to protect (e.g., servers, routers, PCs, CCTV systems).
- Find the power rating (watts or VA) for each device.
- Add up the total power consumption.
- Multiply by 1.25 to allow for power inefficiencies and extra load.
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