Description
Is This UPS Right for Your Project?
The DAXIN EX3C3 120kVA is a three-phase online UPS for data centers, industrial facilities and critical infrastructure that require continuous double-conversion protection and remote monitoring.
Its 0ms transfer architecture, high-efficiency operating modes and communications options support customers focused on availability, power quality and manageable operating cost.
Typical Applications
- Medium and large data centers
- Industrial production and automation
- Healthcare and financial facilities
- Telecom and transport infrastructure
What to Confirm Before Ordering
- Critical load profile and redundancy target
- Input/output voltage and site short-circuit capacity
- Battery autonomy and charging design
- SNMP, RS-232/485, bypass and maintenance plan
Frequently Asked Questions
How should I choose the UPS capacity?
Start with the measured continuous load, startup or peak demand and expected expansion. DAXIN ENERGY can review the load list and recommend a practical operating margin.
How is battery runtime determined?
Runtime depends on load, battery voltage, battery capacity, battery age, temperature and inverter efficiency. Share the required backup duration and normal load for a project calculation.
Can this UPS work with a generator or remote monitoring system?
Generator and monitoring compatibility depends on the selected model and configuration. Confirm generator capacity, frequency stability and the required RS-232, RS-485, USB, Modbus or SNMP interface before ordering.
Request a Project Configuration
Send DAXIN ENERGY the load list, site voltage, required runtime, installation environment, communications and redundancy requirements. The final configuration is subject to the approved technical proposal.
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.
EX 3C3 120K Online UPS System – Enterprise-Grade Power Protection for Critical Applications
EX3C3 120kVA Three-Phase Online UPS
The DAXIN ENERGY EX3C3 120kVA online UPS is designed for critical power backup applications that require stable, clean and continuous three-phase power. It uses a double-conversion online topology to protect sensitive equipment from grid fluctuation, voltage instability, frequency variation, noise interference and power interruption.
Key Features
High-Reliability Double-Conversion Design
- True online double-conversion topology provides stable sine wave output.
- Output frequency tracking, phase locking, voltage regulation and noise filtering help protect critical loads.
- Advanced modular dual-CPU control improves system reliability and operating stability.
- Wide AC input voltage range of 380VAC ±25% reduces unnecessary battery discharge in unstable power environments.
- DC start function allows the UPS to start directly from battery when utility power is unavailable.
High Efficiency and Low Grid Interference
- Advanced PFC power factor correction technology keeps the input power factor close to 1.
- Input harmonic filters comply with international power quality requirements and reduce feedback pollution to the grid.
- Input and output harmonic filtering minimizes UPS interference with the utility power system.
- High-frequency filtering and synchronization technology improves generator compatibility.
Complete System Protection
- 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 without interrupting load power.
Intelligent Monitoring and Management
- LCD display shows UPS operating status, parameters and alarm information in real time.
- RS232 / RS485 communication interfaces support local monitoring.
- Optional SNMP network adapter enables remote UPS management.
- Compatible with intelligent UPS monitoring software for centralized power management.
Optional Intelligent Battery Monitoring
- Supports single battery detection.
- Provides over-voltage, under-voltage and voltage difference alarm functions.
- Battery fault information can be displayed on the screen to notify administrators quickly.
Strong Environmental Adaptability
The circuit boards are installed in a fully enclosed structure and treated with conformal coating, making the UPS more suitable for harsh environments such as tunnels, plazas, industrial sites and outdoor supporting facilities.
Typical Applications
- Data centers and server rooms
- Telecom base stations and communication equipment rooms
- Industrial automation systems
- Hospitals and medical equipment
- Commercial buildings and office parks
- Transportation, tunnel and infrastructure projects
- Emergency backup power systems
Technical Specifications
| Model | EX3C3-120kVA |
|---|---|
| Capacity | 120kVA / 120kW |
| Topology | Online double-conversion UPS |
| Input Phase | Three-phase + neutral |
| Input Voltage Range | 110VAC (Ph-N) ±3% at 50% load; 176VAC (Ph-N) ±3% at 100% load |
| Input Frequency | 50 / 60Hz auto selectable |
| Input Power Factor | > 0.99 at 100% load |
| Output Voltage | 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% THD with linear load; ≤2% THD with nonlinear load |
| Transfer Time | 0ms |
| Efficiency | > 96.5% in AC mode; > 96.5% in battery mode |
| Battery Quantity | 32-40 pcs adjustable |
| Charging Current | 2-36A ±10%, preset 2A |
| Dimensions | 1000 × 430 × 1200 mm |
| Net Weight | 200 kg |
| Operating Temperature | 0-40°C |
| Relative Humidity | < 95%, non-condensing |
| Communication | RS232 / RS485 / USB, optional SNMP |
Technical specifications for DAXIN ENERGY EX3C3 series three-phase online UPS, including 120kVA model.
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