UPS battery backupsENERGY STAR certified
Vertiv PST5-850MT120
850 VA / 500 W passive standby UPS.
Capacity
850 VA
500 W real power
Topology
Passive Standby
Efficiency
98.5%
weighted, as tested
Runtime @ 50%
6 min
1 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 850 VA and 500 W, so the equipment plugged into its battery outlets should draw no more than about 400 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 98.5% compares with a median of 98.6% across 189 certified units within 25% of its capacity.
- Maker
- Vertiv
- Model
- PST5-850MT120
- Apparent power rating
- 850 VA
- Real power rating
- 500 W
- Power factor
- 0.59
- Topology
- Passive Standby
- Intended use
- Consumer, Commercial, Data Center
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 6 min
- Runtime at 100% load
- 1 min
- Battery warranty
- 1 yr
- Weighted efficiency
- 98.5%
- Efficiency at 25 / 50 / 75 / 100% load
- 98.1% / 98.7% / 98.7% / 98.5%
- Outlets
- 8 (4 battery + surge, 4 surge only)
- Rack mountable
- No
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- USB Port
- Size (H x W x D)
- 97 x 158 x 305 mm
- Maker take-back program
- No
- On the market since
- May 2019
- ENERGY STAR certified
- 3 Apr 2019
Certified under the same record
The maker lists these as the same machine or a variant of it: PST5-850MT120TAA.
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2336065, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the PST5-850MT120
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| CyberPower CP825AVRLCDa | 850 VA / 450 W | Line Interactive | 98.9% | 14 min |
| CyberPower CP825LCDa | 850 VA / 450 W | Passive Standby | 98.4% | 14 min |
| APC BX850M | 850 VA / 510 W | Line Interactive | 98.8% | 9 min |
| CyberPower EC850LCD | 850 VA / 510 W | Passive Standby | 98.5% | 6 min |
| CyberPower S175UC | 850 VA / 510 W | Line Interactive | 98.7% | 9 min |
| Tripp Lite AG-0316 | 850 VA / 425 W | Passive Standby | 99.0% | 9 min |
Vertiv
More Vertiv UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| 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 |