APC (Schneider Electric)
APC Back-UPS Pro BR1500MS2
$339.99
Best Uninterruptible Power Supplies · head-to-head
APC Back-UPS Pro BR1500MS2 vs Vertiv Liebert PSA5-1500MT120
A sourced, side-by-side comparison. APC Back-UPS Pro BR1500MS2 is cheaper at $339.99. Every spec and price links to its source.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | APC Back-UPS Pro BR1500MS2 |  Vertiv Liebert PSA5-1500MT120 |
|---|---|---|
| US price | $339.99 | — |
| Brand | APC (Schneider Electric) | Vertiv |
| Released | — | — |
| Topology | line-interactive | line-interactive |
| Capacity va | 1500 | 1500 |
| Output watts | 900 | 900 |
| Waveform | pure-sine | — |
| Battery backup outlets | 6 | 5 |
| Battery type | sealed-lead-acid | sealed-lead-acid |
| Runtime half load min | — | 11 |
| Recharge time hrs | — | — |
| Surge protection joules | 1080 | 316 |
| Has LCD display | Yes | Yes |
| Form factor | tower | tower |
| Weight (kg) | 12.5 | — |
Sources — APC Back-UPS Pro BR1500MS2: se.com (verified 2026-07-11). Vertiv Liebert PSA5-1500MT120: vertiv.com (verified 2026-07-11).
What's the difference between the APC Back-UPS Pro BR1500MS2 and Vertiv Liebert PSA5-1500MT120?
Where the two actually differ on the specs we track (2 of 12). Matching specs are omitted.
- Battery backup outlets: APC Back-UPS Pro BR1500MS2 6 vs Vertiv Liebert PSA5-1500MT120 5
- Surge protection joules: APC Back-UPS Pro BR1500MS2 1080 vs Vertiv Liebert PSA5-1500MT120 316