The Xtreme Power Conversion P91-5K (paired with the BPXR2U240A battery pack) and the Vertiv Liebert GXT5-5000HVRT5UXLN are true online, double-conversion UPS systems designed for mission-critical IT and infrastructure loads.
Both deliver 5 kVA / 5 kW (unity power factor) output and similar baseline full-load runtime in the configurations shown. However, the P91 solution emphasizes modular bypass and distribution, multi-voltage output flexibility, lower total rack height, and built-in TAA compliance, while the Vertiv HVRT prioritizes long internal runtime within a larger single-chassis UPS.
5 kVA / 208–240 V Online UPS Comparison
| Feature | XTREME POWER P91-5K + BPXR2U240A | Vertiv Liebert GXT5-5000HVRT5UXLN | XPCC Advantage |
| UPS Capacity | 5 kVA / 5 kW | 5 kVA / 5 kW | Equivalent usable power |
| Topology | Online Double Conversion | Online Double Conversion | Equivalent premium protection |
| Output Voltage | 208 / 220 / 230 / 240 VAC | 208 VAC nominal | Greater voltage flexibility |
| System Runtime (Full Load) | ~7 min @ 5 kW | ~7 min @ 5 kW | Comparable baseline runtime |
| Optional External Battery Cabinets | Yes (BPXR series) | Yes (Vertiv EBCs) | Both support runtime scaling |
| Input / Output Architecture | Hardwired or optional XBDM modular bypass & distribution | Hardwired input; fixed receptacles | Greater serviceability and flexibility |
| Rack Height / Configuration | 4U total (2U UPS + 2U battery) | 5U UPS (≈8.5″ height) | Saves rack space |
| Battery Technology | VRLA | VRLA | Comparable chemistry |
| Warranty | 3 yrs electronics 3 yrs batteries |
3 yrs electronics 3 yrs batteries |
Aligned coverage |
| Compliance / Listings | UL1778, cUL, FCC, CE, RoHS, TAA | UL1778, c-UL, CSA, FCC Class A | P91 adds TAA |
| TAA Compliance | Yes | No | Key federal differentiator |
Printable Comparison PDF
Download the full, printable version of this comparison for offline review or internal sharing.
Download the Full Comparison PDF
https://xpcc.com/wp-content/uploads/Xtreme-P91-5K-Vertiv-LiebertGXT5-5000HVRT5UXLN-Comparison.pdf
Where the P91-5K Excels
- Federally funded and TAA-restricted procurement environments
- Deployments requiring modular bypass and power distribution (XBDM)
- Racks where lower total rack height improves density
- Sites needing multi-voltage output flexibility (208–240 V)
- Installations prioritizing serviceability and lifecycle flexibility
When Vertiv Liebert GXT5-5000HVRT5UXLN May Be a Fit
- Existing Vertiv-standardized environments
- Deployments prioritizing long internal runtime in a single UPS chassis
- Non-regulated commercial installations
- Sites where rack height is less constrained
Who Should Choose Which
Choose Xtreme Power Conversion P91-5K if you need:
- Built-in TAA compliance for government, education, and public-sector projects
- Lower total rack height for dense infrastructure racks
- Modular bypass and distribution for easier maintenance
- Flexible 208–240 V output options
- Scalable runtime using BPXR battery modules
Choose Vertiv Liebert GXT5-5000HVRT5UXLN if you need:
- A single integrated UPS chassis with long internal runtime
- Alignment with an existing Vertiv ecosystem
- Deployment in non-regulated environments
Ideal Applications
- Data-center edge and infrastructure racks
- Network and telecom rooms
- Government, education, and public-sector facilities
- High-density IT deployments
- Projects requiring scalable runtime with service flexibility
Plan with Confidence
Request a Quote
Speak with an Xtreme Power Conversion specialist to size the right P91-5K configuration for your runtime, voltage, and compliance requirements.
Xtreme Power Conversion
Phone: (800) 582-4524
Email: sales@xpcc.com