UPS Brands and Product Lines
Each major UPS maker sells several product families that differ in topology, waveform and management features. These guides map the families so you can tell which line fits your job before comparing individual models.
Most UPS shopping goes wrong at the family level, not the model level. Two units with the same VA number on the box can belong to different families: one a standby unit with a stepped approximation of a sine wave, the other a line-interactive unit with pure sine output, a management slot and a battery you can swap without powering down. Once you know which family you need, choosing a size inside it is mostly arithmetic.
The guides in this section describe each brand's lineup at that family level: what topology each line uses, what kind of output waveform to expect, what management and software options exist, and which kinds of buyers each line is aimed at. They are orientation, not endorsements. Every major brand makes units suited to some jobs and poorly suited to others, and lineups change: families get refreshed, suffixes change meaning, and regional variants exist for 120 V and 230 V markets. Always confirm the details on the current spec sheet for the exact model you are considering.
What you will find here
- Brand lineups: APC, CyberPower, Eaton, Tripp Lite (now part of Eaton) and Vertiv Liebert.
- How to read UPS model numbers: what the letters and digits usually encode, and why the number is normally the VA class rather than the watt rating.
- Warranties and equipment guarantees: how unit, battery and connected-equipment coverage typically work, and what claim conditions to expect.
Before you pick a brand
Decide on the job first. Work out your load in watts with the UPS sizing calculator, decide whether you need pure sine output (see pure vs simulated sine wave) and choose a topology using UPS types explained. Then check software support for your platform: most brands' USB models work with the open-source Network UPS Tools, but the depth of support varies by model.
For head-to-head views, see APC vs CyberPower and Eaton vs APC in the comparisons section.