700–1500 VA · 120VAC · Line-Interactive Tower UPS Comparison

S71-1000 vs Vertiv Liebert PSA5-1000MT120

The S71-1000 and Vertiv Liebert PSA5-1000MT120 are 1000 VA / 600 W line-interactive UPS systems for desktop, network, and retail protection. The S71-1000 differentiates with faster transfer and recharge, more battery-backed outlets, higher surge protection, a touch LCD, and TAA compliance.

Xtreme Power
S71-1000
vs
Vertiv
Liebert PSA5-1000MT120
Where the S71-1000 leads

What the S71-1000 brings

  • Faster typical transfer time (4 ms vs 6 ms)
  • More battery-backed outlets (6 vs 5)
  • Much faster recharge (4–6 h vs 12 h)
  • Higher surge rating (465 J vs 316 J)
  • Touch LCD interface
  • TAA-compliant for government procurement
Side-by-side

Side-by-side specifications

SpecificationXtreme Power S71-1000Vertiv Liebert PSA5-1000MT120Advantage
Capacity1000 VA / 600 W1000 VA / 600 WEqual capacity
TopologyLine-interactive with AVRLine-interactive with AVREquivalent
Output waveform (battery)Simulated sineSimulated sineEquivalent
Transfer time (typical)4 ms6 ms (8 ms max)S71 – faster transfer
Receptacles(6) all battery-backed(10) total: 5 battery + 5 surgeS71 – more battery-backed (6 vs 5)
Recharge4–6 h to 90%12 h to 90%S71 – much faster recharge
Dimensions (W×D×H)5.1 × 12.6 × 7.1 in3.9 × 11.4 × 11.0 inS71 – lower height
Weight18 lb17.9 lbComparable weight
DisplayTouch LCDLCDS71 – touch interface
Data-line protectionRJ45 surge suppressionRJ45 / RJ11 + coaxApplication dependent
Surge protection465 J316 JS71 – higher surge rating
TAA complianceYesNoS71 – government procurement
Warranty3 years3 yearsEqual

Specifications from Xtreme Power’s S71-1000 vs Vertiv Liebert PSA5-1000MT120 comparison; confirm against current vendor documentation.

Where each fits

Choosing between them

The S71-1000 leads on transfer, battery-backed outlets, recharge, surge rating, display, and TAA; the Vertiv offers more total outlets and added coax/RJ11 line protection.

Choose the S71-1000 if you need

  • More battery-backed outlets and higher surge rating
  • Much faster recharge (4–6 h vs 12 h)
  • A touch-LCD interface
  • TAA compliance for procurement

The Liebert PSA5-1000MT120 may fit if you need

  • More total outlets (10) with coax/RJ11 line protection
  • An existing Vertiv / Liebert standard

Standardizing distributed UPS deployments?

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