Holdvolt H11-MD
Online UPS for Medical Equipment, 1–10 kVA
Double-conversion UPS configured for imaging, patient monitoring and laboratory instruments.
- 1–10kVA
- Single-phase tower
- 0ms
- Mains to battery
- ±1%
- Output voltage
- Pure
- Sine wave output
How it works
Mains lost. The load does not notice.
- 0 ms
- mains to battery
- DC bus
- battery always connected
- Inverter
- load never sees the grid
Conversion
- Online double conversion
- DSP control
- Active PFC, input PF ≥0.99
- ECO mode
Grid and generator
- Wide input voltage
- Generator compatible
- 50 / 60 Hz auto-sensing
Battery
- Adjustable battery quantity
- Multi-stage charging
- Cold start on battery
Monitoring
- LCD panel
- RS-232 / USB
- SNMP card (option)
- EPO
Specifications
Factory catalog values, model by model.
1–10 kVA
Same electrical platform as the H11 range.
| Model | H11-1KE | H11-1K | H11-2KE | H11-2K | H11-3KE | H11-3K | H11-6KE | H11-6K | H11-10KE | H11-10K |
|---|---|---|---|---|---|---|---|---|---|---|
| Input | ||||||||||
| Input wiring | L+N+PE | |||||||||
| Rated voltage | 208/220/230/240VAC | |||||||||
| Voltage range | 110–300VAC | |||||||||
| Frequency range | 44–56Hz@50Hz/54Hz-66Hz@60Hz | |||||||||
| power factor | ≥0.99 | |||||||||
| Output | ||||||||||
| Output wiring | L+N+PE | |||||||||
| Output voltage | 208/220/230/240VAC | |||||||||
| Output accuracy | ±1% | |||||||||
| Output frequency | Online mode: follows utility frequency; Battery mode: 50/60 Hz ±0.05 | |||||||||
| THDv | ≤ 2% (linear load); ≤ 5% (non-linear load) | |||||||||
| power factor | 0.8/1.0 | |||||||||
| Transfer time | ||||||||||
| Transfer time | Utility → Battery: 0 ms; Inverter → Bypass: 4 ms | |||||||||
| Overload | ||||||||||
| Overload capability (utility mode) | Utility mode: 30 min@102%–110%load;10 min@110%–130%load;30 s@130%–150%load; 200 ms@>150%load | |||||||||
| Overload capability (battery mode) | Battery mode: 30 min@102%–110%load;10 min@110%–130%load;30 s@130%–150%load;200 ms@>150% load | |||||||||
| Efficiency | ||||||||||
| Efficiency (utility mode) | >94.5% | >94.5% | >95.5% | >95.5% | >95.5% | >95.5% | >95% | >95% | >95% | >95% |
| Battery | ||||||||||
| Battery voltage | 36Vdc | Built-in 2×12V7AH batteries | 72Vdc | Built-in 4×12V7AH batteries | 96Vdc | Built-in 6×12V7AH batteries | 192Vdc | Built-in 16×12V7AH batteries | 192Vdc | Built-in 16×12V7AH batteries |
| Charging current | 1-12A(max) | 1A | 1-12A(max) | 1A | 1-12A(max) | 1A | 1-12A(max) | 1A | 1-12A(max) | 1A |
| Display & communication | ||||||||||
| Display | LCD display shows mode/load/battery/input/output, etc. | |||||||||
| Communication | Standard RS232; optional SNMP card and USB | |||||||||
| Environment | ||||||||||
| Operating temperature | 0–40°C | |||||||||
| Relative humidity | 20%–95%RH (non-condensing) | |||||||||
| Altitude | ≤1000 m; above 1000 m, derate 1% per 100 m; max. 4000 m (ref. IEC 62040) | |||||||||
| Physical | ||||||||||
| Dimensions, Tower: L×W×H (mm) | 145×315×319 | 145×315×319 | 145×400×219 | 145×400×219 | 145×400×219 | 190×454×322 | 190×454×322 | 190×454×700 | 190×454×322 | 190×454×700 |
| Weight, Tower (kg) | 4.1 | 8.3 | 5.7 | 14.1 | 6.4 | 21 | 9.8 | 43.2 | 11.2 | 54.6 |
| Dimensions, Rack: L×W×H (mm) | 438×315×86.8 | 438×315×86.8 | 438×400×86.8 | 438×400×86.8 | 438×400×86.8 | 438×500×86.8 | 438×500×86.8 | / | 438×500×86.8 | / |
| Weight, Rack (kg) | 4.8 | 9.8 | 8 | 16.4 | 8 | 21 | 8.8 | / | 11 | / |
Factory values. Specifications may change; confirm against the quotation.Swipe the table sideways.
Where it fits
Applications and guides for this range.
Healthcare
Imaging systems, lab analyzers and hospital IT react badly to dips and outages. We size double-conversion online UPS systems for individual devices up to whole hospital wings.
GuideOnline vs Offline UPS: Double Conversion, Line-Interactive and Standby
Uninterruptible power supplies come in three basic designs. Offline and line-interactive units pass mains through and switch to battery when it fails. An online double-conversion unit rebuilds the output all the time, so the load never sees the grid.
Questions buyers ask
Is this a certified medical device?
No. It is an online UPS configured for medical and laboratory loads. It is not certified to IEC 60601; ask us if your project requires that standard.
Can the unit carry our brand?
Yes. Logo, front panel, packaging and manual can be supplied under your brand. Minimum quantities and lead times are on the OEM / ODM page.
What do you need for a quotation?
Load in kVA or kW, input voltage and phases, output phases, the backup time you need and where the unit will be installed. If you are unsure, send what you know and we will ask for the rest.
More in Online UPS
Five numbers get you a quote
Send what you know. We reply within one working day.
- LoadkVA or kW, and what it is
- Input voltage and phasese.g. 400 V three-phase, 50 Hz
- Output phasesSingle- or three-phase
- Backup timeMinutes at full or typical load
- SiteIndoor, temperature, altitude, generator