Description
20kVA High-Frequency Online UPS for Critical Backup Power
The DAXIN ENERGY 3H20kVA high-frequency online UPS is built for applications
that require stable, reliable and continuous power protection. It is suitable
for industrial facilities, commercial buildings, telecom power rooms, data
centers, automation systems, security systems and other critical electrical loads.
True Online Double-Conversion Design
This 20kVA online UPS adopts true online double-conversion technology to isolate
connected equipment from grid fluctuations, voltage instability, frequency
variation and power interruptions. It helps protect sensitive equipment and
maintain stable operation during abnormal power conditions.
High Reliability Design
- True online double-conversion UPS architecture
- MCU + DSP digital control for stable and accurate operation
- Generator input compatible, recommended generator capacity is 2 times UPS capacity
- Optional output isolation transformer can be installed before shipment
- Standard EPO emergency power-off function
- Supports parallel operation up to 3 units for compatible models
- Configurable battery quantity from 16 to 20 batteries according to site requirements
- Charging current can be adjusted from 1A to 4A according to project needs
- Available with PF0.8 and PF0.9 power factor versions
- Supports automatic startup when mains power is restored
Comprehensive System Protection
The 3H20kVA online UPS integrates multiple protection functions, including
output overload protection, output short-circuit protection, inverter
over-temperature protection, low battery warning and battery overcharge
protection. These functions help improve system reliability and reduce the
risk of downtime.
Easy Maintenance and Bypass Operation
An optional manual maintenance bypass switch can be configured. When UPS
maintenance is required, the system can transfer to bypass mode without
interrupting the connected load, making maintenance safer and more convenient.
LCD Display and Intelligent Monitoring
The LCD display provides real-time UPS operating status, input and output
parameters, battery information and alarm status. RS232 / USB communication
and optional SNMP network monitoring allow users to manage UPS operation
through intelligent monitoring software.
Designed for Demanding Environments
The circuit boards are installed in an enclosed structure and treated with
protective conformal coating, improving environmental adaptability for
industrial sites, tunnels, plazas, telecom rooms and other demanding
installation environments.
Typical Applications
- Data centers and server rooms
- Telecom power rooms and communication stations
- Industrial automation equipment
- Commercial buildings and office facilities
- Security, monitoring and control systems
- Medical, transportation and public infrastructure power protection
Technical Specifications – 3H20kVA Online UPS
| Model | 3H20kVA |
|---|---|
| Capacity | 20kVA / 18kW |
| Input Phase | Three-phase four-wire with ground |
| Input Voltage Range | 110VAC ±3% at 50% load; 176VAC ±3% at 100% load; maximum 300VAC ±3% |
| Input Frequency Range | 46-54Hz at 50Hz system; 56-64Hz at 60Hz system |
| Output Voltage | 208 / 220 / 230 / 240VAC |
| AC Voltage Regulation | ±1% |
| Battery Mode Frequency | 50Hz ±0.1Hz or 60Hz ±0.1Hz |
| Current Crest Ratio | 3:1 max |
| Harmonic Distortion | ≤3% THD linear load; ≤5% THD non-linear load |
| Transfer Time | 0ms from mains to battery; 0ms from inverter to bypass |
| Overload Capacity | 100%-110%: 5 min; 110%-130%: 1 min; >130%: bypass immediately |
| Efficiency | >91% in AC mode; >91% in battery mode |
| Battery Type | 12V sealed lead-acid battery |
| Battery Quantity | 16-20 pcs configurable |
| Charging Current | Default 4A ±10%; optional 1A / 2A / 4A |
| Dimensions | 592 × 250 × 576 mm |
| Net Weight | 28.5 kg |
| Operating Temperature | 0-50°C; battery life may be shortened above 25°C |
| Relative Humidity | <95%, non-condensing |
| Operating Altitude | <1000 m |
| Noise Level | <60dB at 1 meter |
| Communication Interface | RS232 / USB, supports Windows, Linux, Unix and Mac systems |
| Optional SNMP | SNMP network monitoring and power management support |
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