Xtreme Power X90-2S vs Eaton 93PM 100kW UPS (480V)
Both are transformer-free online double-conversion UPS available in 480V three-wire or 480/277V four-wire form, and both are TAA compliant. Compared here at the same cabinet class: Eaton’s 22-inch slim chassis against the X90-2S. The differences that decide most projects are batteries and headroom.
Two 100 kW modular UPS platforms
The Xtreme Power X90-2S and the Eaton 93PM UPS (100 kW configuration) are modular three-phase UPS systems designed for critical facility infrastructure.
Both platforms provide online double-conversion protection with unity power factor output, but differ in system architecture, footprint, battery integration, and long-term service model.
Side by side
| Feature | Xtreme Power X90-2S | Eaton 93PM | Engineering impact |
|---|---|---|---|
| Capacity at this point | 100 kVA / 100 kW | 100 kVA / 100 kW | Equivalent |
| Module ratings | 50 kW or 70 kW | 50 kW UPM only | Larger module available |
| Module slots in cabinet | 2 | 2 | Equivalent |
| Max capacity in cabinet | 140 kW (2 × 70 kW) | 100 kW (2 × 50 kW) | 40 kW of headroom vs none |
| Max N+1 in cabinet | 70 kW active with a redundant 70 kW module | 50 kW active with a redundant UPM | Redundancy at a higher load |
| To scale beyond | Step up to the X90-5S | Larger frame ordered upfront, external cabinet, or a second UPS in parallel | Growth path differs |
| Internal runtime | About 6 min at 100 kW | None — no internal batteries | No battery cabinet needed |
| Cabinets at that runtime | One, 23.6 in wide | Two — UPS plus 93PM IBC-SW | Half the wall |
| Installed footprint | 6.9 sq ft | About 12.2 sq ft | Roughly half the floor area |
| Battery design | Modular internal, front access | External VRLA strings | Module swap vs string work |
| Maintenance bypass | Internal, standard | Integrated bypass an optional accessory | Standard vs add-on |
| Output | 480V 3W + G, or 480/277V 4W + G with 100% unbalanced load | 480V 3-phase, 3-wire or 4-wire | Both offered either way |
| Online efficiency | Up to 96.5% | Up to 97% | Eaton rates half a point higher |
| Economy mode | 99% ECO | 99% ESS | Equivalent |
| Altitude without derating | 5,200 ft | 3,300 ft (1,000 m) | Matters above 3,300 ft |
| Operating temperature | 0–40 °C | 5–40 °C | Wider low-end range |
| Approvals | UL-1778, cUL, FCC A, RoHS, TAA | UL 1778, cULus, FCC Part 15 B, TAA | Both TAA compliant |
| Start-up | Bundled | Included with the Service Protection Package | Both include commissioning |
| Warranty (USA and Canada) | 2 years on-site, bundled | 1 year on-site — 12 months from certified start-up or 18 months from factory shipment, whichever is first | Twice the standard term |
Integrated vs. external battery architecture
Eaton’s 100 kW slim chassis holds no internal batteries. Reaching about six minutes at full load means standing a 93PM IBC-SW battery cabinet beside it, which takes the installed width from roughly 22 inches to about 42 and the floor area from 6.4 sq ft to about 12.2. The X90-2S carries 4 to 20 battery modules inside the UPS cabinet and reaches about six minutes at 100 kW on 20 of them, so 23.6 inches and 6.9 sq ft is the installed system rather than a starting point. Maintenance bypass is internal and standard here; on the 93PM the integrated bypass is an optional accessory.
Internal runtime at full load
The second difference is headroom. The slim 93PM chassis has two 50 kW module slots, so a system ordered at 100 kW is full on day one: growth means a larger frame bought upfront, an external cabinet, or a second UPS in parallel. X90-2S modules come in 50 kW or 70 kW ratings, so the same cabinet reaches 140 kW on two 70s: a 100 kW system leaves 40 kW of headroom and N+1 is available at 70 kW rather than 50. Where growth beyond 140 kW is expected, the X90-5S is the step up.
The bottom line at 100 kW
Both are capable 100 kW platforms, both offered in three-wire or four-wire form, and both TAA compliant. Start-up is bundled on either side; the X90-2S carries two years on-site in the USA and Canada against one. Eaton rates online efficiency half a point higher. The X90-2S answers a different question: a complete four-wire system in one cabinet, at about half the floor area once batteries are counted, with room to grow to 140 kW in the same footprint. Where the site has floor space and expects to scale well past 140 kW, the larger 93PM frames are the more scalable choice. Specifications from publicly available manufacturer data; verify against current Eaton documentation for a specific quote.
Related X90-2S comparisons
Plan your 100 kW deployment
Xtreme Power Conversion supports UPS sizing, runtime planning, and footprint comparison for 480V facility UPS modernization.