1500 VA · 120 VAC · Online Double-Conversion UPS Comparison

T91-1500 vs Eaton 9SX1500

The Xtreme Power T91-1500 and Eaton 9SX1500 are both true online double-conversion UPS for mission-critical IT, networking, and AV loads. The T91-1500 differentiates on usable watts, runtime scalability, charging, weight, and TAA.

Xtreme Power
T91-1500
vs
Eaton
9SX1500
Where the T91-1500 leads

What the T91-1500 brings

  • Higher usable watts (1450 W vs 1350 W)
  • Greater runtime scalability (about 133 min at 1450 W on up to 7 packs vs about 105 min at 1350 W on up to 4)
  • Selectable 2 / 4 / 6 / 8 A charging vs a fixed about 1.4 A charger
  • About 18% lighter (34.3 lb vs 41.9 lb)
  • More compact footprint and built-in TAA compliance
Side-by-side

Side-by-side specifications

SpecificationXtreme Power T91-1500Eaton 9SX1500Advantage
UPS capacity1500 VA / 1450 W1500 VA / 1350 WT91 – more usable power
TopologyOnline double-conversionOnline double-conversionEquivalent true online protection
Output receptacles(6) NEMA 5-15R(6) NEMA 5-15REquivalent receptacle configuration
Dimensions (W x D x H)5.6 x 15.6 x 8.6 in6.3 x 17.1 x 9.9 inT91 – more compact footprint
Extended runtimeUp to 7 packs (about 133 min at 1450 W)Up to 4 packs (about 105 min at 1350 W)T91 – greater runtime scalability
Charger currentSelectable 2 / 4 / 6 / 8 AFixed about 1.4 AT91 – faster recharge and recovery
Weight34.3 lb41.9 lbT91 – about 18% lighter
TAA complianceYesNoT91 – federal / regulated eligible
Warranty3-year3-yearEquivalent coverage

Specifications from Xtreme Power’s supplied T91-1500 vs Eaton 9SX1500 comparison; based on publicly available manufacturer data.

Where each fits

Choosing between them

The T91-1500 leads on usable watts, runtime (about 133 min vs about 105 min at full load), charging, weight, footprint, and TAA; the 9SX1500 suits Eaton-standardized, non-regulated sites with modest runtime needs.

Choose the T91-1500 if you need

  • TAA-restricted / federally funded procurement
  • Higher usable watt output from a 1500 VA UPS
  • Long runtime with multiple external packs
  • Lighter, more compact installs

The 9SX1500 may fit if you need

  • Existing Eaton-standardized environments
  • Non-regulated commercial / office deployments
  • Limited runtime-expansion requirements

Specifying a line-interactive rack UPS?

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