When I first started managing our office's IT infrastructure, I assumed buying a UPS was a no-brainer. Pick one, plug it in, done. Three years, two fried servers, and roughly $4,200 in avoidable costs later, I can tell you: it's way more nuanced than that.
This isn't a spec sheet comparison. This is the stuff I wish someone had told me before I learned the hard way. Here are the questions I had to answer by burning budget and time.
Rebecca Sloan is a power distribution and protection analyst specializing in circuit breakers, switchgear, contactors, fuses, surge protective devices, and coordination. She applies IEC 60947-2 breaker requirements, IEC 60269 fuse characteristics, and IEC 61643-11 tests while examining rated voltage, breaking capacity, time-current curves, selectivity, and prospective short-circuit current. She helps engineers and buyers compare protective devices against documented fault levels, installation conditions, maintenance access, and continuity priorities.