UPS battery backupsENERGY STAR certified
W Box 0E-RCKMT1500
1,500 VA / 1,050 W line interactive UPS.
Capacity
1,500 VA
1,050 W real power
Topology
Line Interactive
Efficiency
98.9%
weighted, as tested
Runtime @ 50%
16 min
5 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 1,500 VA and 1,050 W, so the equipment plugged into its battery outlets should draw no more than about 840 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 98.9% compares with a median of 98.7% across 153 certified units within 25% of its capacity. With nothing plugged in it still draws 3.3 W, about $3.76 a year at 13¢/kWh just to stand ready.
- Maker
- W Box
- Model
- 0E-RCKMT1500
- Apparent power rating
- 1,500 VA
- Real power rating
- 1,050 W
- Power factor
- 0.70
- Topology
- Line Interactive
- Intended use
- Consumer, Commercial
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 16 min
- Runtime at 100% load
- 5 min
- Battery warranty
- 1 yr
- Weighted efficiency
- 98.9%
- Efficiency at 25 / 50 / 75 / 100% load
- 98.3% / 98.9% / 98.9% / 98.8%
- Input power at no load
- 3.3 W
- Rack mountable
- Yes, 2U
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- Serial Port,USB Port
- Size (H x W x D)
- 433 x 88 x 400 mm
- Maker take-back program
- Yes
- On the market since
- Dec 2018
- ENERGY STAR certified
- 14 Jan 2019
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2333801, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the 0E-RCKMT1500
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| CyberPower PR1500RTXL2U | 1,500 VA / 1,500 W | Line Interactive | 98.5% | 19 min |
| CyberPower CP1500AVRTa | 1,500 VA / 900 W | Line Interactive | 98.8% | 12 min |
| APC BX1500M | 1,500 VA / 900 W | Line Interactive | 98.9% | 11 min |
| Delta RT-1.5K | 1,500 VA / 1,350 W | Double Conversion | 91.2% | 12 min |
| CyberPower OL1500RT JP | 1,500 VA / 1,350 W | Double Conversion | 90.9% | 11 min |
| CyberPower OL1500RTN JP | 1,500 VA / 1,350 W | Double Conversion | 90.9% | 11 min |
W Box
More W Box UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| 0E-1000V9RD | 1,000 VA / 600 W | Line Interactive | 98.6% | 9 min |
| 0E-1000VASNM | 1,500 VA / 900 W | Line Interactive | 99.3% | 11 min |
| 0E-1500V10RD | 1,500 VA / 900 W | Line Interactive | 98.6% | 12 min |
| 0E-1500VASNM | 1,500 VA / 900 W | Line Interactive | 98.9% | 18 min |
| 0E-350V6 | 350 VA / 255 W | Passive Standby | 97.9% | 8 min |
| 0E-825V12VRD | 825 VA / 480 W | Line Interactive | 98.6% | 10 min |
| 0E-850V8LCD | 850 VA / 510 W | Passive Standby | 98.5% | 6 min |
| 0E-RCKMT1000 | 1,000 VA / 700 W | Line Interactive | 98.8% | 17 min |