P91-10K vs Eaton 9PX11KG2
The Xtreme Power P91-10K (paired with the BPXR3U240A pack) and Eaton 9PX11KG2 are both true online double-conversion UPS for higher-power, hardwired deployments. The Eaton carries a higher nominal capacity (11 kVA/11 kW); the P91-10K differentiates on longer baseline runtime, modular bypass/distribution, and TAA.
What the P91-10K brings
- Longer baseline runtime (6 min @ 10 kW vs 3.1 min @ 11 kW)
- Optional XBDM modular bypass & distribution
- Built-in TAA compliance for federal procurement
- Flexible runtime scaling with BPXR packs
- Greater architectural flexibility for infrastructure racks
Side-by-side specifications
| Specification | Xtreme Power P91-10K + BPXR3U240A | Eaton 9PX11KG2 | Advantage |
|---|---|---|---|
| UPS capacity | 10 kVA / 10 kW | 11 kVA / 11 kW | Eaton – higher nominal capacity |
| Topology | Online double-conversion | Online double-conversion | Equivalent premium protection |
| System runtime (full load) | 6 min @ 10 kW | 3.1 min @ 11 kW | P91 – longer baseline runtime |
| Optional external battery packs | Yes (BPXR series) | Yes (9PX EBM series) | Both support extended runtime |
| Input / output architecture | Hardwired; optional XBDM modular bypass & distribution | Hardwired; factory-configured receptacles | P91 – greater service & distribution flexibility |
| Rack height | 5U total (2U UPS + 3U battery) | 4U total (UPS only) | Eaton more compact; P91 trades space for runtime |
| Form factor | Rack / tower | Rack / tower | Equivalent deployment flexibility |
| Warranty | 3-yr electronics / 3-yr battery | 3-year limited | Comparable OEM coverage |
| Compliance / listings | UL1778, cUL, FCC, CE, RoHS, TAA | UL1778, cULus, IEC 62040-2, RoHS | P91 – adds TAA |
| TAA compliance | Yes | No | P91 – federal procurement |
Specifications from Xtreme Power’s supplied P91-10K vs Eaton 9PX11KG2 comparison; based on publicly available manufacturer data. The Eaton 9PX11KG2 carries a higher nominal capacity (11 kVA/11 kW) in a compact 4U UPS-only chassis; the P91-10K (shown with a BPXR3U240A pack) provides longer baseline runtime and modular bypass/distribution.
Choosing between them
The Eaton 9PX11KG2 offers higher nominal capacity (11 kW) in a compact 4U UPS-only chassis. The P91-10K delivers longer baseline runtime at 10 kW, modular bypass/distribution (XBDM), and TAA at comparable warranty – trading rack space for runtime and serviceability.
Choose the P91-10K + BPXR3U240A if you need
- Federally funded / TAA-restricted procurement
- Longer baseline runtime without adding large external cabinets
- Modular bypass and power distribution (XBDM)
- Infrastructure racks prioritizing serviceability and lifecycle flexibility
The 9PX11KG2 may fit if you need
- Higher nominal capacity (11 kVA / 11 kW) in a compact UPS-only chassis
- Alignment with an existing Eaton UPS ecosystem
- Non-TAA commercial or industrial deployments
Related comparisons
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