Holdvolt H33-Li
High-Power Lithium-ion UPS, 200–600 kVA
Large-frame double conversion matched to high-voltage lithium battery cabinets.
- 200–600kVA
- Cabinet
- 1
- Output PF (kVA = kW)
- ≥97%
- System efficiency
- <2%
- Input THDi
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
- 7-inch display
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.
200–600 kVA
| Model | H33-200K-Li | H33-300K-Li | H33-400K-Li | H33-500K-Li | H33-600K-Li |
|---|---|---|---|---|---|
| Other | |||||
| Capacity | 200KVA/200KW | 300KVA/300kW | 400KVA/400KW | 500KVA/500kW | 600KVA/600KW |
| IP rating | IP20 | ||||
| Input | |||||
| Wiring | 3Ph+N+PE | ||||
| Input voltage | 380/400/415 VAC (line); 220/230/240 VAC (phase) | ||||
| Input Frequency | 50/60Hz | ||||
| Power factor | >0.99 | ||||
| THDi | THDi<2%(100%linear load) | ||||
| Voltage range | 304–478 VAC (line) full load; 228–304 VAC (line) linear derating (load 100% → 50%) | ||||
| Frequency range | 40-70Hz | ||||
| Battery | |||||
| Battery voltage | 3-wire: ±240 VDC (30–50 cells adjustable); Optional 2-wire: 480 VDC (30–50 cells adjustable) | ||||
| Charging power | Max. 20% × active power | ||||
| Charging voltage accuracy | ±1% | ||||
| Bypass | |||||
| Bypass voltage | 380/400/415VAC(line) ; 220/230/240VAC(phase) | ||||
| Voltage range | Adjustable; default -20% to +15%; Upper limit: +10% / +15% / +20% / +25%; Lower limit: -10% / -15% / -20% / -30% / -40% | ||||
| Overload capability | 125%: continuous; 125% < load < 130%: ≥ 10 min; 130% < load < 150%: ≥ 1 min; >150%: 300 ms | 110%: continuous; 101% < load < 125%: ≥ 5 min; 125% < load < 150%: ≥ 1 min; >150%: 1 s | 110%: continuous; 101% < load < 125%: ≥ 5 min; 125% < load < 150%: ≥ 1 min; >150%: 1 s | 110%: continuous; 101% < load < 125%: ≥ 5 min; 125% < load < 150%: ≥ 1 min; >150%: 1 s | 110%: continuous; 101% < load < 125%: ≥ 5 min; 125% < load < 150%: ≥ 1 min; >150%: 1 s |
| Output | |||||
| Rated output voltage | 380/400/415VAC(line);220/230/240VAC(phase) | ||||
| Rated frequency | 50/60Hz | ||||
| Power factor | 1 | ||||
| Voltage accuracy | ±1.0% | ||||
| Dynamic voltage response | <5%(20%-80%-20%step load) | ||||
| Recovery time | <20ms(0%-100%-0%step load) | ||||
| Output THDu | <1%(linear),<5%(non-linear) | ||||
| Frequency accuracy | 0.1% | ||||
| Sync tracking range | Adjustable:±0.5 Hz to ±5 Hz (default ±3 Hz) | ||||
| Sync tracking rate | Adjustable: 0.5–3 Hz/s (default 0.5 Hz/s) | ||||
| Crest factor | 3:1(max) | ||||
| 3-phase accuracy | 120°±0.5° | ||||
| Overload | |||||
| Inverter overload | 110%: transfer to bypass after 1 h; 125%: after 10 min; 150%: after 1 min; >150%: after 200 ms | ||||
| Efficiency | |||||
| System Efficiency | Main mode ≥ 97%; Battery mode ≥ 97% | ||||
| Display & communication | |||||
| Display | LCD+LED+7-inch display | LCD+LED+10-inch display | LCD+LED+10-inch display | LCD+LED+10-inch display | LCD+LED+10-inch display |
| Options | SNMP card, dry contacts card, parallel kit, lightning protection kit, top air outlet kit, APP WiFi/Bluetooth | ||||
| Physical | |||||
| Cable entry | Front top entry; optional front bottom entry | Front top entry; optional front bottom entry | Compatible with top/bottom entry | Compatible with top/bottom entry | Compatible with top/bottom entry |
| Cabinet (W×D×H) mm | 600×750×1600 | 600×750×2000 | 600×850×2000 | 1200×850×2000 | 1200×850×2000 |
| Module (W×D×H) mm | 440×475×140 | ||||
| Environment | |||||
| Working environment | 0–40°C (operating); -25–70°C (storage); 0–95% RH (non-condensing) | ||||
| Noise (1 m in front) | 68 dB @ 100% load; 65 dB @ 45% load | ||||
Factory values. Specifications may change; confirm against the quotation.Swipe the table sideways.
Where it fits
Applications and guides for this range.
Manufacturing
A half-second dip can stop a line, scrap a batch and reset every PLC. We size industrial and online UPS systems for controls, drives and process loads, not just the office IT room.
ApplicationData Centers
Data center power has to grow with the racks and stay up while you service it. We supply modular, rack-mount and lithium-ion online UPS systems from server room to full data hall.
GuideLithium-Ion vs Lead-Acid UPS Batteries: LiFePO4 or VRLA?
VRLA lead-acid is the low-cost, familiar choice for UPS backup. Lithium iron phosphate (LiFePO4) costs more up front but lasts longer, weighs less, takes heat better and needs fewer replacements. The right answer depends on runtime, room temperature and how long you keep the system.
Questions buyers ask
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.
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.
More in Lithium-ion 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








