In modern industrial environments, stable and uninterrupted power is mission-critical. Prostar ET30K HV 3 phase 30kVA power backup UPS is engineered to deliver robust power protection. It provides high-performance power protection for factories, heavy machinery, and critical infrastructure.
Designed with a 480V input/output configuration and built-in isolation transformer, this UPS ensures maximum reliability under harsh electrical conditions.

What is a 30kVA Power Backup UPS?
A 30kVA power backup UPS is a high-capacity uninterruptible power supply. It is designed to provide continuous power during outages. It also functions during voltage fluctuations or grid instability.
The industrial UPS system is widely used in:
- Manufacturing plants
- CNC machinery systems
- Oil & gas facilities
- Industrial automation lines
- Critical infrastructure systems
Why Industrial Facilities Demand a 30kVA Power Backup UPS
When specifying power protection for industrial applications, capacity and topology are non-negotiable. A 30kVA power backup UPS occupies a critical performance tier. It is substantial enough to power entire workshop sections, HVAC control systems, or precision CNC machinery. It is also efficient enough to integrate into existing electrical infrastructures without excessive cooling demands.
The ET30K HV stands out by operating at a native 480V input and output. This is the standard for heavy industrial equipment in North America and other global markets. By maintaining voltage consistency at this level, the unit removes the necessity for costly step-down transformers. These transformers introduce failure points and decrease overall system efficiency.
Key Features of Heavy Industrial UPS
High Capacity
Industrial-Grade Transformer-Based Design
The ET30K HV integrates isolation transformer, delivering:
- Electrical isolation between input and output
- Enhanced safety for sensitive equipment
- Superior resistance to voltage spikes
True 3 Phase 480V Power System
This UPS operates with 3 phase 480V UPS system architecture, making it ideal for industrial loads:
- Stable high-voltage output
- Reduced current stress
- Improved system efficiency
100% Unbalanced Load Capability
Unlike conventional UPS systems, the ET30K HV supports:
- Full load imbalance across phases
- Reliable operation for asymmetrical industrial equipment
- No derating under uneven load conditions
User-Friendly Interface
Features an LCD display for easy monitoring and management of power status and system performance.
Built for Harsh Industrial Environments
This 30kva power backup ups is engineered to withstand the challenges of industrial settings. It handles high loads and continuous operation. It also meets sensitive equipment requirements. Its rugged design and advanced cooling system ensure stable performance even under heavy usage.
480V UPS Diagram
ET30K HV UPS provides consistent and clean power output, making it ideal for heavy‑duty applications. Its true online double‑conversion technology guarantees maximum protection against surges, spikes, harmonics, and electrical noise.
Technical Specifications
| Feature | Specification |
| Power Capacity | 30kVA / 24kW |
| Phase | 3 Phase In / 3 Phase Out |
| Input/Output Voltage | 480VAC (High Voltage Range) |
| Topology | Online Double Conversion |
| Transformer | Built-in Isolation Transformer |
| Load Capability | 100% Unbalanced Load |
| Efficiency | Up to 96% in ECO Mode |
| Battery Type | External Battery Bank |
| Communication | RS232 / RS485 / USB / Dry Contacts / SNMP (Optional) |
| Application | Industrial, Medical, Server Rooms |
LCD Display Show
Industrial UPS Inner Transformer
Industrial Applications of 30kVA UPS Systems
The ET30K HV 30kVA power backup UPS is optimized for demanding industrial scenarios:
Manufacturing & Production Lines
Ensures uninterrupted operation of automated machinery and reduces downtime losses.
CNC Machines & Robotics
Provides stable voltage to precision equipment, preventing errors and damage.
Oil & Gas Industry
Delivers reliable backup power in remote and harsh environments.
Critical Infrastructure
Supports essential systems such as power plants, transportation hubs, and utilities.
FAQ
Q1: What makes a 30kVA power backup UPS suitable for industrial use?
Its high capacity, 3-phase design, and ability to handle heavy and unbalanced loads make it ideal for industrial applications.
Q2: Why is a transformer important in an industrial UPS?
A transformer provides electrical isolation, improves safety, and enhances resistance to voltage disturbances.
Q3: Can this 3 phase 480V UPS system support uneven loads across phases?
Yes, the ET30K HV supports 100% unbalanced loads without performance degradation.
Q4: Is this 3 phase UPS suitable for data centers?
No. This model is optimized for industrial environments, not IT or server applications.
Q5: How long can the 30kva power backup UPS run?
Runtime depends on the battery configuration. The system supports scalable battery packs to meet different backup duration needs.