- Capacity
- 800 VA
- Wattage
- 450 W
- Topology
- Line-Interactive
- Outlets
- 4
- Output waveform
- Simulated sine
- Released
- 2026

1500 VA · 1350 W W · Line-Interactive · 6
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Vertiv Liebert PSI5-1500RT120LITAA 1500 VA UPS is a line-interactive UPS rated 1500 VA (1350 W). Add up what you plug in (PC, monitor, router) and keep it under about 70% of the watt rating, so it doesn't run flat in seconds during a power cut. It came out in 2023.
Check the manufacturer's page before buying.
Lithium-Ion Battery Technology Lithium-ion is a game-changing technology when it comes to UPS batteries. When compared to traditional valve-regulated-lead-acid (VRLA) batteries , Liebert PSI5 Lithium-Ion batteries have greater power density, up to 3 times longer, recharge much more quickly, and can endure up to 10x more discharge cycles. With a 5 year standard warranty, more than double the useful life, and significantly more runtime, the Liebert PSI5 Lithium-Ion UPS is at the top of its class. Lowest Total Cost of Ownership (TCO) The Liebert PSI5 Lithium-Ion line-interactive UPSs are ideally suited to protect critical infrastructure in edge or distributed IT applications. The life expectancy of lithium-ion batteries is up to three times that of VRLA batteries – up to 10 years. That delivers up to 50% or more in TCO savings vs. VRLA batteries, chiefly because the Liebert PSI5 Lithium-Ion requires fewer battery replacements over its lifespan. You save not only on the cost of batteries but on the labor required to replace them – an especially significant issue at remote locations with few or no IT personnel on site.
| Vertiv Liebert PSI5-1500RT120LITAA 1500 VA UPS | Vertiv Liebert PSI5-1500MT120LIN 1500 VA UPS | Vertiv Liebert PSI5-1500SRT2UXLI 1500 VA UPS | CyberPower Line-Interactive USV 1150VA/1150WRack 1U, AVR | |
|---|---|---|---|---|
| Capacity | 1500 VA | 1500 VA | 1500 VA | 1150 VA |
| Wattage | 1350 W | 1350 W | 1350 W | 1150 W |
| Topology | Line-Interactive | Line-Interactive | Line-Interactive | Line-Interactive |
| Outlets | 6 | 6 | 8 | 6 |
| Output waveform | Pure sine | Pure sine | Pure sine | Pure sine |
| Released | 2023 | 2024 | 2025 | 2026 |
1500 VA, 1350 W W, Line-Interactive, 6.
1500 VA.
1350 W.
It was released in 2023/07 (Vertiv).
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