6-50kVA Three-Phase Low-Frequency Transformer UPS
This three-phase UPS utilizes a low-frequency transformer for enhanced reliability and performance. It provides online double conversion and a wide input voltage range.





Technical Specifications
Product Overview
Reliable Three-Phase Power Protection
This 6-50kVA three-phase UPS system utilizes a low-frequency transformer-based design to provide robust galvanic isolation and clean power for critical B2B applications. Featuring online double conversion technology and an IGBT inverter, it ensures a zero-millisecond transfer time and high reliability in harsh electrical environments. It is an ideal solution for data centers, industrial facilities, and medical systems requiring stable, uninterrupted power.
Key Features
Main Features
- IGBT inverter and output isolation transformer
- Online double conversion technology
- Wide input voltage range (380V ±25%)
- RS232/RS485 communication ports
- Optional SNMP adapter and dry contacts
- Integrated maintenance bypass switch
- Optional external battery pack support
Performance Metrics
Performance Highlights
Technical Specifications
Model Comparison
| Model | Capacity (kVA) | Battery Voltage (Vdc) |
|---|---|---|
| 3B10K | 10kVA | 192 |
| 3B15K | 15kVA | 192 |
| 3B20K | 20kVA | 192 |
| 3B30K | 30kVA | 192/384 |
| 3B40K | 40kVA | 384 |
| 3B50K | 50kVA | 384 |
Input & Output
- Input Phase
- 3φ4W+PE
- Input Frequency Range
- 45~66 Hz (Auto-synchronization)
- Output Voltage
- 220/230/240 Vac ±1%
- Output Frequency
- 50/60Hz ±0.5% (Free oscillation)
Applications
- Target Sectors
- Data CenterIndustrialCommercial FacilityTelecomMedicalBankingPrecision Instruments
Compliance & Quality
Certifications




