High-Frequency Online UPS
Transformerless online UPS for IT rooms, telecom, and industrial projects.
- 1–800 kVA
- 0 ms transfer
- Transformerless
Rated capacity
1–800 kVA
Topology
Double-conversion online
Input PF
> 0.99
Rated range
1–800 kVA
- Rated capacity
- 1–800 kVA
- Topology
- Double-conversion online
- Input PF
- > 0.99
- Input THDi
- < 3%
- Crest factor
- 3:1
- Transfer time
- 0 ms
A high-frequency online UPS from 1 kVA to 800 kVA across the HH, HL, PHR, DL and Giant iND platforms, with 0 ms transfer and a 0.9 output power factor. The range covers everything from a single rack to a facility room on one platform family.
What this platform is built to do.
The high-frequency online range covers the transformerless UPS platforms from 1 kVA to 800 kVA: HH single-phase and three-phase input, HL three-phase input, PHR rack, DL compact three-phase, and the Giant iND industrial frame. All are double-conversion online systems with 0 ms transfer.
The input stage uses IGBT rectification with a near-unity power factor and low THDi, and the output is a pure sine wave with a 3:1 crest factor. The series is used in server rooms, telecom sites, small data centers, and industrial control rooms where a transformerless frame gives a smaller footprint and higher efficiency than a traditional transformer-based UPS.
Model selection depends on the input phase, the output phase, the rack or tower format, and the battery bus. The HH/HL series covers 1–200 kVA; the DL series covers 3–80 kVA; the Giant iND frame extends to 800 kVA for industrial projects. Share the load list and the site voltage for a model-specific configuration.
Transformerless
Smaller footprint and higher efficiency than a transformer-based frame.
Wide model range
Single-phase, three-phase, rack, tower, and industrial frames.
Low input harmonics
IGBT rectifier with THDi below 3% at full load.
Project ready
Parallel, SNMP, dry-contact, and MODBUS options by frame.
HH / HL / PHR / DL · 1–800 kVA
Selected models and nominal values. The quotation confirms the exact configuration, battery, and documentation for the project.
Request a model sheetHigh-frequency online UPS series
| Series | Capacity | Input / output | Format | Typical use |
|---|---|---|---|---|
| HH11 | 1–10 kVA | 1-phase / 1-phase | Tower | Server room, branch IT |
| HH31 | 10–20 kVA | 3-phase / 1-phase | Tower | Small DC, clinic |
| HH33 | 10–80 kVA | 3-phase / 3-phase | Tower | Data center, plant |
| PHR | 1–10 kVA | 1-phase / 1-phase | Rack | Edge rack |
| HL11 | 2–20 kVA | 1-phase / 1-phase | Tower | IT room |
| HL31 | 6–80 kVA | 3-phase / 1-phase | Tower | Facility load |
| HL33 | 10–200 kVA | 3-phase / 3-phase | Tower | Data center |
| DL | 3–80 kVA | 1/3-phase | Compact tower | Small project |
| Giant iND | 10–800 kVA | 3-phase / 3-phase | Industrial frame | Industrial plant |
| UT II | 10–200 kVA | 3-phase / 3-phase | Tower | High-frequency online |
| UT III | 30–200 kVA | 3-phase / 3-phase | Tower | High-frequency online |
| +Power | 40–180 kVA | 3-phase / 3-phase | Modular frame | Data center / facility |
| S series | 10–200 kVA | 3-phase / 3-phase | Tower | High-frequency online |
| S 250–800 kVA | 250–800 kVA | 3-phase / 3-phase | Large frame | Large facility |
Input
- Configuration
- 1-phase or 3-phase + N, by model
- Voltage
- 220/230/240 VAC or 380/400/415 VAC
- Frequency
- 50/60 Hz, 40–70 Hz range
- Input PF
- > 0.99
- THDi
- < 3% at full load
Output
- Voltage
- 220/230/240 VAC or 380/400/415 VAC
- Accuracy
- ±1% (three-phase); ±2% (single-phase)
- THD
- < 2% linear; < 5% non-linear (frame-dependent)
- Crest factor
- 3:1
- Transfer time
- 0 ms
Battery and monitoring
- Battery bus
- 24–384 VDC, by frame
- Battery type
- VRLA or LiFePO4, external on long-run models
- Interface
- RS-232/USB; SNMP, dry contact, MODBUS optional
- Parallel
- Selected frames, up to 8 units
Key specifications
| Parameter | Value |
|---|---|
| Rated capacity | 1–800 kVA |
| Topology | Double-conversion online |
| Input PF | > 0.99 |
| Input THDi | < 3% |
| Crest factor | 3:1 |
| Transfer time | 0 ms |
Selection notes for this family
| Question | What to check | Why |
|---|---|---|
| Load profile | Running kW and largest step for 1–800 kVA | Avoid overload and oversizing |
| Runtime | Battery bank and charger for the target minutes | Actual autonomy |
| Environment | Temperature, altitude, dust and ventilation | Life and derating |
| Interface | Monitoring, bypass, parallel requirement | Integration with the room |
| Documentation | Conformity route and model test report | Customs and tender |
Where this family fits.
These are the load types the platform is specified for. If your load is outside this list, send the load profile before selecting the model.
- Server rooms
- Telecom sites
- Small data centers
- Industrial control rooms
- Commercial facilities
High-frequency UPS: project questions.
Project-specific answers. If your question is not here, send the load list and the site conditions.
Talk to an engineer What is the difference between HH and HL series?
The HH series covers single-phase and three-phase input models up to 80 kVA; the HL series extends the three-phase range to 200 kVA with different frame and battery options. Confirm the exact model against the load list.
Can the UPS be paralleled?
Selected HH33, HL33, and Giant iND frames support parallel operation for capacity or redundancy. The number of units and the shared battery arrangement must be confirmed against the frame datasheet.
Is the transformerless design suitable for industrial loads?
For clean control and IT loads, yes. For motor-heavy or high-inrush loads, use the industrial frame with a higher overload rating or a transformer-based industrial UPS.
What battery bus do the models use?
The bus depends on the frame: 24–192 VDC for small single-phase units, 192–240 VDC for 10–20 kVA, and 384 VDC for larger three-phase frames.
Do you provide a rack version?
Yes, the PHR series is the rack format for 1–10 kVA. Confirm the rack depth, rail kit, and battery pack height before ordering.
Send the load list. We will return the configuration.
Tell us the kW, the backup time, the phase, and the site country. You will get a capacity recommendation, a battery configuration, and the model sheet.
- Capacity and topology recommendation
- Battery bank and runtime estimate
- Model sheet and commercial offer
Request a configuration and quotation
Send the load list, backup time, and site conditions. We will return a capacity recommendation, battery configuration, and commercial offer.