3000 VA / 2880 W · 120VAC · Online Double-Conversion Rack UPS Comparison

P91-3000 vs Eaton 9PX3000RT

The P91-3000 and Eaton 9PX3000RT are both true online double-conversion VRLA UPS delivering continuous sine-wave output for critical IT, network, AV, and edge infrastructure. The P91-3000 differentiates with higher usable watts, much faster recharge, greater runtime scalability, and full TAA compliance.

Xtreme Power
P91-3000
vs
Eaton
9PX3000RT
Where the P91-3000 leads

What the P91-3000 brings

  • Higher usable watts (2880 W vs 2700 W)
  • Much faster recharge (<3 h vs 8 h)
  • Greater runtime scalability (up to 7 packs vs 4)
  • Programmable 1–8 A charger vs a fixed charger
  • Better high-altitude rating and full TAA compliance
Side-by-side

Side-by-side specifications

SpecificationXtreme Power P91-3000Eaton 9PX3000RTAdvantage
Capacity3000 VA / 2880 W3000 VA / 2700 WP91 – higher usable watts
TopologyOnline double-conversionOnline double-conversionEqual topology
Battery chemistryVRLAVRLAEqual
Recharge time<3 hours8 hoursP91 – much faster recharge
Extended runtimeUp to 7 external packsUp to 4 external packsP91 – greater scalability
ChargerProgrammable high-capacity (1–8 A)Fixed chargerP91 – faster with large strings
Dimensions (W×D×H)17.2 × 24.8 × 3.4 in17.2 × 23.8 × 3.4 inComparable footprint
Weight60.6 lb63.1 lbComparable weight
Operating altitude (40°C)Derates above 6,500 ftDerates above 4,921 ftP91 – better at altitude
TAA complianceYesNoP91 – federal procurement
Warranty3 years3 yearsEqual coverage

Specifications from Xtreme Power’s supplied P91-3000 vs Eaton 9PX3000RT comparison; confirm against current vendor documentation. At 3 kVA the footprint and weight are comparable (the Eaton is marginally shallower).

Where each fits

Choosing between them

Equivalent online VRLA protection and warranty, with comparable 3 kVA footprint and weight. The P91-3000 leads on usable watts, recharge, runtime scalability, charger, altitude, and TAA; the Eaton fits Eaton-standardized, controlled environments.

Choose the P91-3000 if you need

  • Long-runtime installs needing fast recharge and scalable expansion
  • Federally funded and TAA-restricted procurement
  • Edge, IDF, and MDF deployments with higher-density loads
  • Sites at higher elevations or warmer ambient conditions

The 9PX3000RT may fit if you need

  • Existing Eaton-standardized UPS environments
  • Modest / standard runtime requirements
  • Well-cooled, low-altitude IT rooms where TAA isn’t required

Specifying a scalable-runtime online UPS?

Xtreme Power supports UPS selection, runtime sizing, and distributed infrastructure design across IT, networking, AV, and regulated environments.