Lithium UPS
48 V lithium rack UPS with 0 ms transfer and a 60 A charger.
- 3–6 kVA
- 48 V lithium
- 0 ms transfer
Rated capacity
3,000 / 5,000 / 6,000 VA
Real power
3,000 / 5,000 / 5,100 W
Battery bus
40–64 VDC
Rated range
3–6 kVA
- Rated capacity
- 3,000 / 5,000 / 6,000 VA
- Real power
- 3,000 / 5,000 / 5,100 W
- Battery bus
- 40–64 VDC
- Transfer
- 0 ms mains → battery
- Efficiency
- 93% mains / 98% ECO
- Charger
- 60 A maximum
A lithium UPS from 3 to 6 kVA (ULi 3KL–6KL) that puts LiFePO4 cells in roughly the footprint of a VRLA unit. Longer cycle life, faster recharge and less weight for the same runtime.
What this platform is built to do.
The ULi series is a 3–6 kVA online UPS designed around a 48 V lithium battery. It uses a 2U rack chassis, a built-in 60 A charger, and a 0 ms transfer to battery. The output power factor is 1.0, so a 6 kVA model delivers 6 kW, not 5.4 kW.
The input accepts 110–280 VAC at 50% load and 176–280 VAC at full load, with a power factor above 0.98 and THDi below 8%. The output is a pure sine wave with ±1% regulation and THD below 3% on a linear load. Up to nine units can be paralleled for capacity or redundancy.
The ULi is a rack platform for server rooms, edge cabinets, and telecom sites where lithium is preferred for cycle life and footprint. It can run without a battery connected, which is useful for commissioning and for loads that only need power conditioning.
Lithium-native
48 V lithium platform with a 60 A charger and BMS integration.
0 ms transfer
Online double conversion with a pure sine wave output.
Parallel-ready
Up to nine units for capacity or redundancy.
Compact 2U
Rack chassis with RS232/USB monitoring.
ULi 3KL–6KL · 3–6 kVA
Selected models and nominal values. The quotation confirms the exact configuration, battery, and documentation for the project.
Request a model sheetULi lithium UPS models
| Model | Capacity | Real power | Battery bus | Dimensions | Weight |
|---|---|---|---|---|---|
| ULi 3KL-48V CN | 3,000 VA | 3,000 W | 40–64 VDC | 420 × 438 × 132.5 mm | 15 kg |
| ULi 5KL-48V CN | 5,000 VA | 5,000 W | 40–64 VDC | 420 × 438 × 132.5 mm | 15 kg |
| ULi 6KL-48V CN | 6,000 VA | 5,100 W | 40–64 VDC | 420 × 438 × 132.5 mm | 15 kg |
Input
- Voltage
- 220/230/240 VAC
- Voltage range
- 110–280 VAC at 50% load; 176–280 VAC at 100%
- Frequency
- 46–54 Hz or 56–64 Hz
- Input PF
- ≥ 0.98 at rated voltage, 100% load
- THDi
- ≤ 8%
Output
- Voltage
- 220/230/240 VAC
- Regulation
- ±1% in battery mode
- THD
- ≤ 3% linear; ≤ 5% non-linear
- Transfer
- 0 ms mains → battery; 4 ms inverter → bypass
- Power factor
- 1.0
- Efficiency
- 93% mains / 98% ECO / 93% battery
Battery and mechanical
- Battery voltage
- 40–64 VDC
- Float voltage
- 54 VDC
- Overcharge protection
- 64 VDC
- Max charge current
- 60 A
- Dimensions
- 420 × 438 × 132.5 mm
- Weight
- 15 kg
- Communication
- RS232 and USB
Key specifications
| Parameter | Value |
|---|---|
| Rated capacity | 3,000 / 5,000 / 6,000 VA |
| Real power | 3,000 / 5,000 / 5,100 W |
| Battery bus | 40–64 VDC |
| Transfer | 0 ms mains → battery |
| Efficiency | 93% mains / 98% ECO |
| Charger | 60 A maximum |
Selection notes for this family
| Question | What to check | Why |
|---|---|---|
| Load profile | Running kW and largest step for 3–6 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
- Edge cabinets
- Telecom sites
- Branch IT
- Rack deployments
Lithium UPS: project questions.
Project-specific answers. If your question is not here, send the load list and the site conditions.
Talk to an engineer Can the ULi run without a battery?
Yes. The UPS can operate without a battery connected, which is useful for commissioning and for loads that only need power conditioning. It will not provide backup in that mode.
How many units can be paralleled?
Up to nine units. The parallel configuration, shared battery arrangement, and bypass must be confirmed for the project.
Is it only for lithium batteries?
The ULi is designed around a 48 V lithium platform with a 60 A charger. Do not connect a lead-acid string without confirming the charger profile and the BMS compatibility.
What runtime can I get?
The runtime depends on the 48 V lithium bank capacity and the load. A 100 Ah module stores about 5.12 kWh; at 3 kW load and 93% efficiency, the ideal runtime is about 1.5 hours before derating.
Does it support remote monitoring?
Yes, RS232 and USB are standard. SNMP or dry contacts can be added through the monitoring option.
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.