UPS battery backupsENERGY STAR certified
Delta DPH-250K-HV
250 kVA / 250 kW multi-mode double conversion UPS.
Capacity
250 kVA
250 kW real power
Topology
Multi-Mode Double Conversion
Efficiency
94.9%
weighted, as tested
Runtime @ 50%
10 min
3 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 250 kVA and 250 kW, so the equipment plugged into its battery outlets should draw no more than about 200 kW if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 94.9% compares with a median of 96.9% across 17 certified units within 25% of its capacity. With nothing plugged in it still draws 545.2 W, about $621 a year at 13¢/kWh just to stand ready.
- Maker
- Delta
- Model
- DPH-250K-HV
- Apparent power rating
- 250 kVA
- Real power rating
- 250 kW
- Power factor
- 1.00
- Topology
- Multi-Mode Double Conversion
- Intended use
- Data Center
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 10 min
- Runtime at 100% load
- 3 min
- Battery warranty
- 3 yr
- Weighted efficiency
- 94.9%
- Efficiency at 25 / 50 / 75 / 100% load
- 94.7% / 95.2% / 95.5% / 95.5%
- Input power at no load
- 545.2 W
- Rack mountable
- No
- Modular
- Yes
- Rated input voltage
- 480 V
- Rated output voltage
- 480 V
- Connections
- Serial Port,Other,Ethernet,USB Port
- Size (H x W x D)
- 2000 x 600 x 850 mm
- Maker take-back program
- No
- On the market since
- Mar 2024
- ENERGY STAR certified
- 9 Jan 2024
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 3360624, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the DPH-250K-HV
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| Liebert 51SA250NAA | 250 kVA / 250 kW | Multi-Mode Double Conversion | 96.6% | 10 min |
| Vertiv 51SA250NAA | 250 kVA / 250 kW | Multi-Mode Double Conversion | 96.6% | 10 min |
| Vertiv PowerUPS 9000 1250kVA | 250 kVA / 250 kW | Multi-Mode Double Conversion | 97.7% | 60 min |
| Vertiv PowerUPS 9000 1250kVA | 250 kVA / 250 kW | Multi-Mode Double Conversion | 97.2% | 60 min |
| Schneider Electric Galaxy VM 225 kVA UPS Parallel 480-480 V, 65kAIC | 225 kVA / 202.5 kW | Double Conversion | 97.0% | - |
| Schneider Electric GVMRB225KG65S | 225 kVA / 202.5 kW | Double Conversion | 97.0% | - |
Delta
More Delta UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| DPH-105K-LV | 15 kVA / 15 kW | Multi-Mode Double Conversion | 95.6% | - |
| DPH-150K-HV | 50 kVA / 50 kW | Multi-Mode Double Conversion | 96.3% | 23 min |
| DPH-300K-HV | 50 kVA / 50 kW | Multi-Mode Double Conversion | 96.3% | 12 min |
| DPH-500K-HV | 200 kVA / 200 kW | Multi-Mode Double Conversion | 99.1% | 11 min |
| DPH-60K-LV | 15 kVA / 15 kW | Multi-Mode Double Conversion | 95.5% | 12 min |
| RT PRO-1K | 1,000 VA / 1,000 W | Multi-Mode Double Conversion | 91.4% | 10 min |
| RT PRO-2K | 2,000 VA / 2,000 W | Multi-Mode Double Conversion | 93.4% | 12 min |
| RT PRO-3K | 3,000 VA / 3,000 W | Multi-Mode Double Conversion | 93.6% | 14 min |