Do I need a tower or a rack-mount UPS?
It depends on where the equipment lives, not on how much power it draws. If your server and switches sit in a 19-inch cabinet, choose a rack-mount UPS so it bolts in beside them. If there is no cabinet — a desk, a reception counter, a small-office server corner — choose a tower. If you are not sure yet, a rack/tower convertible model such as Smart-UPS X or Smart-UPS SRT does both.
Will a 1000 VA UPS run 1000 watts of equipment?
No. VA is apparent power; watts is the real power the UPS can deliver, and it is lower — often between 60% and 100% of the VA figure depending on the model. Add up the watts of everything you will plug in, leave about a quarter spare, and compare that with the watt rating of the UPS, not the VA. Our VA, W, V, Wh guide has a converter.
How long will a UPS keep my equipment running?
It depends on the load and the battery. Most office UPS units are sized for a few minutes at full load — enough to ride through a short cut or shut servers down cleanly — and run longer at lighter loads. For longer outages, Smart-UPS X and Smart-UPS SRT take external battery packs. The guide includes a runtime estimator.
What is the difference between line-interactive and on-line (double-conversion)?
A line-interactive UPS feeds the load from mains, corrects sags and surges with automatic voltage regulation, and switches to battery within a few milliseconds when power fails — that is Back-UPS, Easy UPS and most Smart-UPS. An on-line double-conversion UPS runs the load from its inverter all the time, so there is no switch-over at all and the output is rebuilt clean — that is Smart-UPS SRT, for medical, lab and core IT loads.
How long do UPS batteries last in the UAE?
Sealed lead-acid batteries typically last three to five years, and less if the UPS sits in a hot room, because heat is what ages them. Keep the UPS in an air-conditioned space and replace the battery cartridge when the UPS warns you. Smart-UPS Lithium-ion models use batteries that last roughly two to three times as long.
Can AtomOffice size and install the UPS for us?
Yes. Tell us what has to stay on, its watts and how many minutes you need, and we will size the UPS and quote it. We deliver across the Emirates and install rack-mount Smart-UPS and Smart-UPS SRT units.