Delta UPS, ENERGY STAR certified
Delta RT-11K3P-LV
11 kVA / 11 kW double conversion UPS.
Capacity
11 kVA
11 kW real power
Topology
Double Conversion
Efficiency
94.1%
weighted, as tested
Runtime @ 50%
15 min
6 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 11 kVA and 11 kW, so the equipment plugged into its battery outlets should draw no more than about 8,800 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 94.1% compares with a median of 95.0% across 47 certified units within 25% of its capacity. With nothing plugged in it still draws 157.3 W, about $179 a year at 13¢/kWh just to stand ready.
- Maker
- Delta
- Model
- RT-11K3P-LV
- Apparent power rating
- 11 kVA
- Real power rating
- 11 kW
- Power factor
- 1.00
- Topology
- Double Conversion
- Intended use
- Consumer, Commercial, Data Center
- Battery
- Lithium-ion Battery
- Runtime at 50% load
- 15 min
- Runtime at 100% load
- 6 min
- Battery warranty
- 3 yr
- Weighted efficiency
- 94.1%
- Efficiency at 25 / 50 / 75 / 100% load
- 92.2% / 92.8% / 92.5% / 91.9%
- Input power at no load
- 157.3 W
- Rack mountable
- Yes
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- Other,Ethernet,USB Port
- Size (H x W x D)
- 88 x 440 x 760 mm
- Maker take-back program
- No
- On the market since
- Jul 2019
- ENERGY STAR certified
- 25 Jul 2019
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2341616, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the RT-11K3P-LV
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| Eaton 9PX11KPM | 11 kVA / 10 kW | Double Conversion | 94.9% | 10 min |
| Eaton 9PX11KIRTNG2 | 11 kVA / 11 kW | Double Conversion | 97.0% | 9 min |
| Eaton 9PX11KG2-L | 11 kVA / 11 kW | Double Conversion | 97.4% | 16 min |
| 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 |
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 |