Description
Additional DAXIN High-Frequency UPS Product Video
Watch the product demonstration to review the UPS format, operating interface and application positioning. Final electrical configuration is subject to the approved technical proposal.
20 KVA To 60 KVA Online High Frequency UPS Power Supply 3 Phase Rack Mount
EX3C3 20kVA Three-Phase Online UPS
The DAXIN ENERGY EX3C3 20kVA online UPS is designed for critical equipment that requires stable, clean and uninterrupted three-phase power. Its online double-conversion topology protects connected loads from voltage fluctuation, frequency variation, harmonic interference, electrical noise and unexpected power interruptions.
Key Features
Reliable Online Double-Conversion Design
- True online double-conversion topology provides clean sine wave output for sensitive equipment.
- Output frequency tracking, phase locking, voltage regulation and noise filtering help reduce the impact of unstable utility power.
- Advanced modular dual-CPU control improves UPS reliability, operating stability and overall system performance.
- Wide AC input voltage range reduces unnecessary battery discharge in areas with poor grid conditions.
- DC start function allows the UPS to start directly from battery when utility power is unavailable.
High Input Power Factor and Low Harmonic Interference
- Advanced PFC technology keeps the input power factor close to 1 under different load and utility voltage conditions.
- Input harmonic filter design reduces feedback pollution to the utility grid.
- Input and output harmonic filters help minimize UPS interference with the power system.
- High-frequency filtering and synchronization technology improves generator compatibility.
Complete Protection Functions
- Output overload protection.
- Output short-circuit protection.
- Inverter over-temperature protection.
- Battery low-voltage warning protection.
- Battery overcharge protection.
- Manual maintenance bypass switch supports easier service while keeping load power supplied through bypass.
LCD Display and Communication Management
- LCD display shows UPS operating status, system parameters and alarm information in real time.
- RS232 / USB communication interfaces support local monitoring and computer communication.
- Optional SNMP network adapter enables remote UPS monitoring and centralized power management.
- Compatible UPS monitoring software provides clear visibility of system operating data.
Optional Intelligent Battery Monitoring
- Supports single battery detection and monitoring.
- Provides over-voltage, under-voltage and voltage difference alarm functions.
- Battery fault information can be displayed on the screen to help administrators respond quickly.
Strong Environmental Adaptability
The circuit boards are installed in a fully enclosed structure and treated with conformal coating, improving reliability in harsh environments such as tunnels, plazas, industrial sites and demanding equipment rooms.
Typical Applications
- Small data centers and server rooms
- Telecom equipment rooms
- Industrial automation systems
- Medical and laboratory equipment
- Security and monitoring systems
- Commercial buildings and office power backup
- Emergency backup power systems
Technical Specifications
| Model | EX3C3-20kVA |
|---|---|
| Capacity | 20kVA / 18kW |
| Topology | Online double-conversion UPS |
| Input Phase | Three-phase grounded |
| Input Voltage Range | 110VAC (Ph-N) +/-3% at 50% load; 176VAC (Ph-N) +/-3% at 100% load |
| Input Frequency | 45-55Hz at 50Hz; 56-65Hz at 60Hz |
| Input Power Factor | > 0.99 at 100% load |
| Output Voltage | 3 x 360 / 380 / 400 / 415VAC, three-phase |
| AC Voltage Regulation | +/-0.3% |
| Output Frequency | 46-54Hz or 56-64Hz in synchronized mode; 50Hz +/-0.1Hz or 60Hz +/-0.1Hz in battery mode |
| Crest Factor | 3:1 |
| Output THD | <=1% with linear load; <=2% with nonlinear load |
| Transfer Time | 0ms |
| Efficiency | > 91.5% in AC mode; > 88% in battery mode |
| Battery Quantity | 16-20 pcs adjustable, preset 16 pcs |
| Charging Current | 4.0A +/-10% |
| Dimensions | 592 x 250 x 576 mm |
| Net Weight | 40 kg |
| Operating Temperature | 0-40 deg C |
| Relative Humidity | < 95%, non-condensing |
| Noise | < 65dB at 1m |
| Communication | RS232 / USB, optional SNMP |











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