UPS battery backupsENERGY STAR certified
Vertiv PSI5-1100SRT2ULI
1,100 VA / 990 W line interactive UPS.
Capacity
1,100 VA
990 W real power
Topology
Line Interactive
Efficiency
98.9%
weighted, as tested
Runtime @ 50%
11 min
6 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 1,100 VA and 990 W, so the equipment plugged into its battery outlets should draw no more than about 792 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 98.9% compares with a median of 98.6% across 152 certified units within 25% of its capacity.
- Maker
- Vertiv
- Model
- PSI5-1100SRT2ULI
- Apparent power rating
- 1,100 VA
- Real power rating
- 990 W
- Power factor
- 0.90
- Topology
- Line Interactive
- Intended use
- Consumer, Commercial, Data Center
- Battery
- Lithium-ion Battery
- Runtime at 50% load
- 11 min
- Runtime at 100% load
- 6 min
- Battery warranty
- 2 yr
- Weighted efficiency
- 98.9%
- Efficiency at 25 / 50 / 75 / 100% load
- 98.2% / 98.9% / 98.9% / 98.9%
- Outlets
- 6 (6 battery + surge, 0 surge only)
- Rack mountable
- Yes, 2U
- Rated input voltage
- 100-125 V
- Rated output voltage
- 100-125 V
- Connections
- USB Port
- Size (H x W x D)
- 87 x 438 x 300 mm
- Maker take-back program
- Yes
- On the market since
- Jul 2025
- ENERGY STAR certified
- 19 Aug 2025
Certified under the same record
The maker lists these as the same machine or a variant of it: PSI5-1100SRT2ULIN, PSI5-1100SRT2ULITAAN, PSI5-1100SRT2ULITAA.
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 4481437, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the PSI5-1100SRT2ULI
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| APC BN1100M2-CA | 1,100 VA / 600 W | Line Interactive | 98.8% | 13 min |
| Tripp Lite AG-0554 | 1,050 VA / 540 W | Line Interactive | 98.5% | 9 min |
| Tripp Lite AG-06C0 | 1,050 VA / 900 W | Line Interactive | 99.0% | 9 min |
| APC BE1050G3 | 1,050 VA / 600 W | Passive Standby | 99.0% | 9 min |
| Eaton 5P1150IRT2UG2-L | 1,150 VA / 920 W | Line Interactive | 98.5% | 18 min |
| Delta RT-1K | 1,000 VA / 900 W | Double Conversion | 90.2% | 12 min |
Vertiv
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|---|---|---|---|---|
| 10B14763GG103 | 450 kVA / 405 kW | Multi-Mode Double Conversion | 97.2% | 30 min |
| 10B14789GF103 | 825 kVA / 743 kW | Multi-Mode Double Conversion | 97.7% | 30 min |
| 47SA040A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] | 10 kVA / 10 kW | Multi-Mode Double Conversion | 94.2% | 34 min |
| 47SA100A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] | 60 kVA / 60 kW | Multi-Mode Double Conversion | 95.8% | 10 min |
| 47SA120A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] | 120 kVA / 120 kW | Multi-Mode Double Conversion | 95.6% | 10 min |
| 51SA030QAA | 30 kVA / 30 kW | Multi-Mode Double Conversion | 96.3% | 10 min |
| 51SA030QBA | 30 kVA / 30 kW | Multi-Mode Double Conversion | 95.2% | 10 min |
| 51SA050BAA | 50 kVA / 50 kW | Multi-Mode Double Conversion | 96.4% | 10 min |