P80-1500 vs Vertiv Liebert PSI5-1500RT120
The Xtreme Power P80-1500 and Vertiv Liebert PSI5-1500RT120 are 120V, 0.9 power factor pure sine wave line-interactive 2U rack/tower UPS with AVR, external-battery support, and an identical 1500 VA / 1350 W rating. The P80-1500 adds a longer 3-year warranty, more receptacles, and wall mounting.
Where the P80-1500 fits
- Longer warranty: 3-year electronics & battery vs the PSI5’s 2-year coverage.
- Eight 5-15/20R receptacles (accept 15 A and 20 A plugs) vs the PSI5’s six 5-15R.
- Tower, wall, 2-post and 4-post mounting (PSI5: tower / rack / 2-post).
- Identical 1500 VA / 1350 W rating — comparable real watts.
- TAA compliant as standard; optional XBDM maintenance bypass and external P90-BP48 packs.
Side-by-side specifications
| Specification | Xtreme Power P80-1500 | Vertiv PSI5-1500RT120 | Advantage |
|---|---|---|---|
| Rated capacity | 1500 VA / 1350 W | 1500 VA / 1350 W | Identical rating; both 0.9 PF |
| UPS topology | Line-interactive, AVR, sine wave | Line-interactive, AVR, sine wave | Equivalent protection |
| Output receptacles | (8) NEMA 5-15/20R | (6) NEMA 5-15R | P80 has 8 outlets and accepts 20 A plugs |
| Weight | 44.7 lb | 42.6 lb | Comparable; Vertiv approx 2 lb lighter |
| Dimensions (W×D×H) | 17.2 × 19.9 × 3.5 in (depth incl. bezel) | 17.2 × 20.0 × 3.5 in | Comparable depth |
| Extended runtime | Yes — external P90-BP48 (up to 2) | Yes — external PSI5-48VBATT | Both extend via external packs |
| Maintenance bypass | Optional XBDM module | Optional MicroPod | Both offer an optional external bypass |
| Mounting | Tower / wall / 2-post / 4-post | Tower / rack / 2-post | P80 adds wall mounting |
| Management | USB, RS-232, optional Web/SNMP | USB, optional cybersecure RDU120 / IntelliSlot | Comparable; Vertiv RDU120 is UL-2900-1 cybersecure |
| TAA compliance | Yes (standard) | Yes (via TAA SKUs) | Both available TAA-compliant |
| Warranty | 3-yr UPS & battery | 2-yr full unit | P80 one year longer |
Both are identical-rated 1500 VA / 1350 W (0.9 PF) 120V line-interactive AVR pure sine UPS that accept external battery packs and an optional maintenance bypass, and both are available TAA-compliant. The P80-1500 leads on warranty (3 vs 2 years), output count and flexibility (8 5-15/20R vs 6 5-15R), and wall mounting. The PSI5-1500RT120 adds a $400k equipment-protection plan and a cybersecure RDU120 card option. Confirm Vertiv specifications against current Vertiv documentation.
Choosing between them
Choose the P80-1500 for a longer warranty, more and more-flexible outlets, and wall mounting at the same rating. The PSI5-1500RT120 fits sites that want the Vertiv management ecosystem and equipment-protection plan.
Choose the P80-1500 if you need
- A longer 3-year warranty
- Eight 5-15/20R receptacles
- Wall or 2-post mounting
- TAA-compliant branch / edge backup
The PSI5-1500RT120 may fit if you need
- The Vertiv management ecosystem
- A $400k equipment-protection plan
- Cybersecure RDU120 network management
Related comparisons
Specify the right line-interactive rack UPS
Talk to an Xtreme Power specialist about runtime sizing, maintenance-bypass options, TAA-compliant procurement, and rack / wall / 2-post deployment across IT, networking, AV, and regulated environments.