P91-10K vs Vertiv Liebert GXT5-10KHVRT5UXLN
The Xtreme Power P91-10K (with the BPXR3U240A battery pack) and Vertiv Liebert GXT5-10KHVRT5UXLN are online double-conversion UPS delivering full 10 kVA / 10 kW at unity power factor, both on VRLA batteries. With equivalent usable power, the P91-10K differentiates on longer baseline runtime, optional XBDM modular bypass and distribution, a lower rack footprint, and built-in TAA compliance; the GXT5-10K emphasizes a single integrated UPS chassis.
What the P91-10K brings
- Much longer baseline runtime at 10 kW (6 min vs 2 min)
- Lower rack footprint (5U with battery vs 6U UPS-only)
- Optional XBDM modular bypass and distribution
- Runtime scaling via BPXR battery options
- TAA compliance for federal procurement
Side-by-side specifications
| Specification | Xtreme Power P91-10K + BPXR3U240A | Vertiv Liebert GXT5-10KHVRT5UXLN | Advantage |
|---|---|---|---|
| Capacity | 10 kVA / 10 kW | 10 kVA / 10 kW | Equivalent usable power |
| Topology | Online double conversion | Online double conversion | Equivalent protection |
| Output voltage | 208 / 220 / 230 / 240 VAC | 208 / 220 / 230 / 240 VAC | Aligned voltage support |
| Runtime (full load) | 6 min at 10 kW | 2 min at 10 kW | P91 – much longer runtime |
| External battery cabinets | Yes (BPXR series) | Yes (Vertiv EBCs) | Both scale runtime |
| Input / output architecture | Hardwired or optional XBDM modular bypass & distribution | Hardwired input only; fixed output receptacles | P91 – modular bypass and distribution |
| Rack height | 5U total (2U UPS + 3U battery) | 6U UPS | P91 – lower footprint (5U vs 6U) |
| Battery technology | VRLA | VRLA | Comparable chemistry |
| Compliance / listings | UL1778, cUL, FCC, CE, RoHS, TAA | UL1778, c-UL, CSA, FCC Class A | Both UL1778 listed |
| TAA compliance | Yes | No | P91 – federal procurement |
| Warranty | 3 yr electronics / 3 yr battery | 3 yr electronics / 3 yr battery | Equivalent coverage |
Specifications from Xtreme Power’s P91-10K vs Vertiv GXT5-10K comparison; confirm against current vendor documentation. P91-10K runtime shown with the BPXR3U240A battery pack.
Choosing between them
With equivalent 10 kW output, the P91-10K leads on runtime, rack footprint, modular bypass, and TAA; the GXT5-10K offers a single integrated chassis for Vertiv-standardized, non-regulated sites.
Choose the P91-10K if you need
- Much longer baseline runtime at full 10 kW load
- A lower total rack footprint for high-density environments
- Modular bypass and distribution (XBDM) for service and expansion
- Built-in TAA compliance for government, education, and public-sector
- Flexible runtime scaling with BPXR options
The Liebert GXT5-10K may fit if you need
- A single-chassis, integrated UPS architecture
- Alignment with an existing Vertiv ecosystem
- A non-regulated deployment with minimal runtime needs
Frequently asked questions
The Xtreme Power P91-10K (with the BPXR3U240A pack) is a common alternative, matching 10 kW of usable output while adding longer baseline runtime, a lower 5U rack footprint, optional XBDM modular bypass, and TAA compliance.
Yes. Both are rated 10 kVA / 10 kW at unity power factor, so usable real power is equivalent. The differences are runtime, rack height, serviceability, and TAA.
With the BPXR3U240A pack the P91-10K delivers about 6 minutes at 10 kW versus about 2 minutes for the GXT5-10K. Both scale further with external battery cabinets.
Yes. The P91-10K is UL1778 listed and TAA compliant for federal and public-sector procurement; the GXT5-10KHVRT5UXLN is not TAA listed.
Related comparisons
Specifying a 10 kVA online UPS?
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