Three-phase UPS comparisons

0:00 93PM, Galaxy VX, or APM2: what is the difference? Eaton 93PM, APC Galaxy VX, or Liebert APM: what is the difference? All three are modular double-conversion three-phase UPS, and all three are listed as current by their makers. What separates them is size, voltage, and the job each one is built for. Each name also covers a family, so this video compares the headline ranges.

0:23 How do their sizes compare? How do their sizes compare? The 93PM runs from 10 to 200 kilowatts at 208 or 220 volts. The Galaxy VX is the large step of its family, from about 500 to 1,500 kilowatts at 400 or 480 volts. The APM2 runs from 10 to 150 kVA at 208 or 220 volts, and up to 600 kVA at 480 or 415 volts. And a note on the units: the APM2 rows are in kVA, where its unity power factor output makes kilowatts equal kVA.

1:03 And the type of each? And the type of each? The 93PM is a modular double-conversion UPS. The Galaxy VX is a large modular double-conversion UPS. The APM2 is a modular, transformer-free double-conversion UPS.

1:18 How efficient is each one, as published? How efficient is each one, as published? In plain double conversion the 93PM runs like any online UPS; Eaton publishes around or above 99 percent for it in the optional Energy Saver System, with a return to full double conversion in about 2 milliseconds. Schneider Electric publishes up to 99 percent for the Galaxy VX in eConversion. Vertiv publishes 97.5 percent peak in double conversion for the APM2, up to 98.8 percent in Dynamic Online, and up to 99 percent in ECO mode. Each maker publishes its own figures in its own modes, and this video reports them as published.

2:01 Is each one current? Is each one current? Yes. Eaton lists the 93PM as current. Schneider Electric lists the Galaxy VX as a current range, with some early part numbers replaced by newer versions, such as the 500 kVA frame replaced in July 2023. Vertiv lists the APM2 as a current product family in Canada.

2:23 Who is each one for? Who is each one for? The 93PM fits sites that need online protection in the 10 to 200 kilowatt band: server rooms, edge data rooms, and mid-size data centres. The Galaxy VX is built for large data centres, cloud and colocation at the 500 to 1,500 kilowatt scale. The APM2 covers a single rack row up to a mid-size data hall, in the 10 to 600 kVA range; the 10 to 120 kilowatt frame fits power, maintenance bypass and battery into one 600 millimetre footprint.

2:59 So how do you choose? So how do you choose? By band and voltage first: these three separate on load size and input voltage before anything else, so a 208 or 220 volt load points one way and a 400 or 480 volt load points another. The published efficiency modes differ too, and each maker measures them in its own way. Both are checkable from the rows in this video. If you are sizing one of the three, request a quote at threephaseups.ca.