When a single power interruption can shut down an entire production line, cost thousands per minute in lost output, or corrupt irreplaceable data — the backup power system you choose is not an expense. It is insurance. Prostar ET120K HV is a 120kVA industrial backup UPS engineered specifically for 480V three-phase environments where zero compromise on reliability is the baseline requirement.
Why Power Security Has Become a Strategic Requirement
Modern industrial facilities are more dependent on stable electricity than ever before. Manufacturing plants, automated production lines, process control systems, industrial robotics, data centers, and critical infrastructure all require continuous, high-quality power to maintain productivity and operational safety.
Even a brief power interruption can result in:
- Production downtime
- Equipment damage
- Data loss
- Product quality issues
- Significant financial losses
As industries continue to embrace automation and digitalization, power security is no longer simply an electrical concern—it has become a business continuity strategy.
Prostar ET120K HV 120kVA industrial backup UPS is specifically engineered to provide comprehensive power protection for mission-critical applications operating on 480V power systems. Combining advanced online double conversion technology with industrial-grade reliability, it delivers uninterrupted power whenever utility conditions become unstable.
What is the ET120K HV 120kVA Industrial Backup UPS?
The ET120K HV is a high-performance 120kVA industrial backup UPS designed for medium-to-large industrial facilities requiring continuous power protection.
Built around a true online double conversion UPS architecture, the system continuously converts incoming AC power into DC and then back into clean AC output. This process isolates connected loads from utility disturbances and ensures a seamless transition during power failures.
Key Specification
| Model | ET120K HV |
| Capacity | 120kVA / 96kW |
| Topology | Online Double Conversion |
| Input Voltage | 480V Three Phase, Wye |
| Output Voltage | 480V Three Phase, Wye |
| Application | Industrial Facilities |
| Efficiency | Up to 98% in ECO mode |
| Bypass | Static + maintenance bypass |
| Battery System | External Industrial Battery Bank |
| Monitoring | Intelligent Remote Management |
| Protection Level | Industrial Grade |
This capacity makes it the go-to 120kVA UPS power protection for critical loads across sectors including automotive manufacturing, semiconductor fabs, food processing, and commercial data centers.
How Online Double Conversion Technology Protects Industrial Loads
Many conventional backup systems only activate when utility power fails. During voltage fluctuations, harmonics, frequency instability, or transient disturbances, sensitive equipment may still be exposed to damaging conditions.
Prostar ET120K HV three phase industrial UPS utilizes true online double conversion technology to eliminate these risks.
Continuous Power Conditioning
The UPS continuously:
- Filters voltage fluctuations
- Eliminates frequency variations
- Suppresses electrical noise
- Reduces harmonic distortion
- Stabilizes output voltage
As a result, connected equipment receives clean and regulated power at all times.
Zero Transfer Time
When a utility outage occurs, the battery system immediately supports the inverter without any transfer delay.
This zero-transfer operation is particularly important for:
- PLC controllers
- Industrial computers
- CNC machinery
- Automation systems
- Process control equipment
These systems often cannot tolerate even milliseconds of power interruption.
Fast transient protection
Sub-cycle transfer and instantaneous static bypass protect connected loads from voltage sags, spikes, and frequency variations.
Robust 480V Three-Phase Power Conditioning
Engineered specifically for global industrial voltage standards, ensuring stable 480V output with tight voltage regulation.
Galvanic Isolation
Supports an integrated isolation transformer to provide complete electrical separation, neutralizing common-mode noise and ground loops.
Why Manufacturing Plants Need a 120kVA Industrial Backup UPS
Industrial facilities face unique electrical challenges that differ significantly from commercial office environments.
Voltage Sags
Large motors starting simultaneously can cause temporary voltage drops that disrupt sensitive electronics.
Utility Failures
Grid outages can stop entire production lines, resulting in lost output and costly restart procedures.
Harmonic Distortion
Variable frequency drives (VFDs) and industrial equipment can introduce harmonics that degrade power quality.
Transient Surges
Switching operations and lightning events may generate damaging voltage spikes.
A properly designed industrial power protection system safeguards equipment against all these threats.
The industrial power protection system provides comprehensive protection while supporting large industrial loads with stable, uninterrupted power.
Advanced Reliability for Mission-Critical Environments
Industrial environments demand more than standard commercial UPS performance.
The ET120K HV 480V industrial UPS system is designed to meet stringent reliability requirements through:
Intelligent Fault Management
Advanced diagnostics continuously monitor:
- Input conditions
- Battery health
- Inverter status
- System temperature
- Load performance
Potential issues can be identified before they develop into failures.
High Overload Capability
Industrial loads often experience temporary overload conditions during startup or process changes.
The UPS is engineered to withstand these conditions while maintaining stable output.
Redundant Protection Architecture
Multiple layers of electrical protection improve operational resilience and reduce the risk of downtime.
Smart Monitoring and Remote Management
Power infrastructure is becoming increasingly connected.
The ET120K HV supports intelligent monitoring functions that enable facility managers to maintain visibility across the entire power protection system.
| ITEM | Description | ITEM | Description |
| 1 | EPO interface | 7 | RS485 / CAN |
| 2 | Dry contact | 8 | NET interface |
| 3 | 250VAC dry contact | 9 | Battery temperature compensation interface |
| 4 | USB port | 10 | USB port |
| 5 | RS485 | 11 | HMI port |
| 6 | RS232 | ||
ET120K HV 120kva industrial backup ups features a comprehensive suite of communication protocols. Equipped with RS232, RS485, Modbus, and optional SNMP slots, plant managers can execute remote monitoring for industrial UPS systems via centralized SCADA or cloud-based dashboards. Real-time telemetry—including load percentages, runtime tracking, and event logs—allows for predictive maintenance, ensuring your facility is never caught off guard.
FAQ
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