APC UPS, ENERGY STAR certified
APC SRTD3KR2-LA
3,000 VA / 2,700 W multi-mode double conversion UPS.
APC Smart-UPS Online UPS Rack & Tower 3000VA 120VVRLA
Capacity
3,000 VA
2,700 W real power
Topology
Multi-Mode Double Conversion
Efficiency
94.3%
weighted, as tested
Runtime @ 50%
13 min
4 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 3,000 VA and 2,700 W, so the equipment plugged into its battery outlets should draw no more than about 2,160 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 94.3% compares with a median of 93.1% across 95 certified units within 25% of its capacity. With nothing plugged in it still draws 36.0 W, about $41 a year at 13¢/kWh just to stand ready.
- Maker
- APC
- Model
- SRTD3KR2-LA
- Description
- APC Smart-UPS Online UPS Rack & Tower 3000VA 120VVRLA
- Apparent power rating
- 3,000 VA
- Real power rating
- 2,700 W
- Power factor
- 0.90
- Topology
- Multi-Mode Double Conversion
- Intended use
- Commercial
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 13 min
- Runtime at 100% load
- 4 min
- Battery warranty
- 3 yr
- Weighted efficiency
- 94.3%
- Efficiency at 25 / 50 / 75 / 100% load
- 92.5% / 94.4% / 94.5% / 94.1%
- Input power at no load
- 36.0 W
- Outlets
- 9 (9 battery + surge, 0 surge only)
- 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)
- 85 x 433 x 610 mm
- Maker take-back program
- Yes
- On the market since
- Mar 2026
- ENERGY STAR certified
- 20 Jan 2026
Certified under the same record
The maker lists these as the same machine or a variant of it: APC Smart-UPS Online UPS Rack & Tower 3000VA 120V No Battery Factory Serviced, SRTD3KR2-NBW, APC Smart-UPS Online UPS Rack & Tower 3000VA 120V No Battery, SRTD3KR2-NB, APC Smart-UPS Online UPS Rack & Tower 3000VA 120V VRLA Factory Serviced, SRTD3KR2-LAW, Circular Certified APC Smart-UPS Online UPS Rack & Tower 3000VA 120V No Battery, SRTD3KR2-NBR, Circular Certified APC Smart-UPS Online UPS Rack & Tower 3000VA 120V VRLA, SRTD3KR2-LAR, Std Exch APC Smart-UPS Online UPS Rack & Tower 3000VA 120V No Battery, SRTD3KR2-NBQ, Std Exch APC Smart-UPS Online UPS Rack & Tower 3000VA 120V VRLA, SRTD3KR2-LAQ.
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 4528602, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the SRTD3KR2-LA
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| CyberPower PR3000RTXL2UHVA | 3,000 VA / 3,000 W | Line Interactive | 98.9% | 11 min |
| Delta RT-3K | 3,000 VA / 2,700 W | Double Conversion | 92.0% | 12 min |
| CyberPower OL3000RTXL2UHV | 3,000 VA / 2,700 W | Double Conversion | 92.0% | 11 min |
| CyberPower OL3000RTXL2UHVN | 3,000 VA / 2,700 W | Double Conversion | 92.0% | 11 min |
| CyberPower OL3000RTXL2UHVTAA | 3,000 VA / 2,700 W | Double Conversion | 92.0% | 11 min |
| CyberPower OL3000RT JP | 3,000 VA / 2,700 W | Double Conversion | 91.5% | 11 min |
APC
More APC UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| APC Back-UPS 350 | 350 VA / 210 W | Passive Standby | 98.0% | 20 min |
| APC Back-UPS 350VA X545 120V | 350 VA / 210 W | Passive Standby | 98.0% | 20 min |
| APC Back-UPS 400VA 120V Slim Flexible Mounting | 400 VA / 220 W | Passive Standby | 98.5% | 20 min |
| APC Back-UPS 500 (beige) | 500 VA / 300 W | Passive Standby | 98.6% | 15 min |
| APC Back-UPS 500 (black) | 500 VA / 300 W | Passive Standby | 98.6% | 15 min |
| APC Back-UPS 650VA 120V 8 NEMA outlets (4 surge) | 650 VA / 390 W | Passive Standby | 98.8% | 12 min |
| APC Back-UPS BE550G | 550 VA / 330 W | Passive Standby | 98.6% | 13 min |
| APC Power Saving Back-UPS Pro 1500 | 1,500 VA / 865 W | Line Interactive | 98.9% | 13 min |