Sizing a UPS for an office doesn’t require specialized electrical knowledge — it just requires a methodical approach to what you’re actually trying to protect, rather than guessing based on price or unit size alone.
Start by listing every device in the office that needs power backup: computers, monitors, networking equipment, printers, point-of-sale terminals, anything that would disrupt work or lose data if it shut off without warning. Each device has a power rating in watts, usually printed on a label or listed in its specifications.
Add up the wattage of everything on your list to get your total office load. Then look for a UPS rated comfortably above that figure — most guidance recommends adding at least 20 to 30 percent headroom rather than buying a unit that exactly matches the calculated load, since running at maximum capacity shortens both the UPS and battery lifespan.
Runtime is a separate consideration from capacity. A higher-capacity unit doesn’t automatically mean longer backup time — that depends specifically on battery size. If your office needs to keep working through outages rather than just save files and shut down cleanly, check the runtime specification at your expected load, not just the VA rating on the box.
For offices running anything genuinely sensitive to power interruption — servers, networking switches, point-of-sale systems — an online double-conversion UPS is usually the better long-term choice over a line-interactive model, since it provides continuously stable power rather than switching to battery only after detecting an outage.
Intex’s range spans 650VA through 10KVA in both line-interactive and online double-conversion technology, in tower and rackmount formats suited to office environments — browse the full range on the Power Backup Solutions page at Intex UAE.