UPS battery backupsENERGY STAR certified
Delta RT-10K
10 kVA / 10 kW double conversion UPS.
Capacity
10 kVA
10 kW real power
Topology
Double Conversion
Efficiency
95.2%
weighted, as tested
Runtime @ 50%
12 min
3 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 10 kVA and 10 kW, so the equipment plugged into its battery outlets should draw no more than about 8,000 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 95.2% compares with a median of 95.1% across 62 certified units within 25% of its capacity. With nothing plugged in it still draws 111.0 W, about $126 a year at 13¢/kWh just to stand ready.
- Maker
- Delta
- Model
- RT-10K
- Apparent power rating
- 10 kVA
- Real power rating
- 10 kW
- Power factor
- 1.00
- Topology
- Double Conversion
- Intended use
- Commercial
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 12 min
- Runtime at 100% load
- 3 min
- Battery warranty
- 3 yr
- Weighted efficiency
- 95.2%
- Efficiency at 25 / 50 / 75 / 100% load
- 94.3% / 94.9% / 95.4% / 95.2%
- Input power at no load
- 111.0 W
- Rack mountable
- Yes
- Rated input voltage
- 200-240 V
- Rated output voltage
- 200-240 V
- Connections
- Serial Port,Ethernet,USB Port
- Size (H x W x D)
- 176 x 440 x 665 mm
- Maker take-back program
- No
- On the market since
- Nov 2018
- ENERGY STAR certified
- 5 Oct 2018
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2327102, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the RT-10K
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| Liebert GXT5-10KIRT5UXLN | 10 kVA / 10 kW | Multi-Mode Double Conversion | 95.1% | 7 min |
| Vertiv GXT5-10KIRT5UXLN | 10 kVA / 10 kW | Multi-Mode Double Conversion | 95.1% | 7 min |
| Liebert GXE-10k00TLA102C00 | 10 kVA / 9,000 W | Multi-Mode Double Conversion | 95.5% | 19 min |
| Vertiv GXE-10k00TLA102C00 | 10 kVA / 9,000 W | Multi-Mode Double Conversion | 95.5% | 19 min |
| Liebert GXT5-10KMVRT6UXLN | 10 kVA / 10 kW | Multi-Mode Double Conversion | 93.9% | 9 min |
| Vertiv GXT5-10KMVRT6UXLN | 10 kVA / 10 kW | Multi-Mode Double Conversion | 93.9% | 9 min |
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-250K-HV | 250 kVA / 250 kW | Multi-Mode Double Conversion | 94.9% | 10 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 |