In mission-critical environments, power instability is not merely an inconvenience—it is a direct operational risk. Prostar ET40K HV three phase 40kVA UPS system is engineered to provide uncompromising reliability. It ensures continuous and clean power for industrial and critical load applications.
As a high-efficiency 40kVA UPS system, the ET40K HV integrates advanced digital control. This high efficiency 480V UPS also includes robust power electronics and industrial-grade design. These features support demanding sectors such as manufacturing, healthcare infrastructure, and energy systems.

What is a 40kVA UPS System?
A 40kVA UPS system refers to a Uninterruptible Power Supply capable of handling 40 kilovolt-amperes of electrical load. The ET40K HV model operates at 480V three-phase input/output. It is the ideal choice for North American industrial environments.
This three phase UPS 40kVA is also suitable for commercial settings requiring high-density power distribution. Unlike single-phase units, this three-phase system provides balanced power delivery, ensuring optimal performance for sensitive equipment.
Key Features of 40kVA UPS System
Advanced IGBT Rectifier Technology
Wide Input Voltage & Frequency Window
Designed for unstable grids, the uninterruptible power supply UPS accepts a broad input range, minimizing battery usage and extending battery life. This is especially valuable in industrial zones or regions with frequent voltage fluctuations.
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
Enhanced Thermal Management System
The three phase 480v input output ups includes multi‑sensor thermal monitoring. It features automatic fan speed control and high‑efficiency heat dissipation. These features ensure stable operation even in high‑temperature environments.
Rugged Industrial‑Grade Build
The 40kVA UPS system features a reinforced chassis, an anti‑corrosion coating, and a vibration‑resistant design. These elements make it suitable for harsh industrial settings such as factories, mining sites, and heavy‑duty automation lines.
Flexible Battery Options (VRLA / Lithium‑ion)
Choose between traditional VRLA batteries or high‑performance lithium‑ion packs for longer lifespan, faster charging, and reduced maintenance.
Industrial UPS system Diagram
This industrial UPS system is built with a rugged chassis, isolation transformer and conformal-coated PCBs. It withstands dusty environments and temperature variations. The ups power supply also handles continuous high-load operations typical of factory floors and critical infrastructure sites.
Technical Specifications
| Feature | Specification |
| Power Capacity | 40kVA / 32kW |
| 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 40kVA UPS Systems
The ET40K HV three‑phase 40kVA UPS system is designed for demanding industrial environments. It provides continuous, high‑quality power essential for safety, productivity, and equipment protection. Its 480V architecture, rugged design, and advanced power conditioning make it suitable for a wide range of heavy‑duty applications.
1. Manufacturing & Automation Lines
The UPS ensures uninterrupted operation of PLCs, robotic arms, CNC machines, and automated production lines. Even brief power disturbances can halt manufacturing, so stable power is critical for uptime and precision.
2. Oil, Gas & Petrochemical Facilities
Harsh environments require robust power protection. The 480V three phase UPS for critical load supports pumps, compressors, control systems, and safety instrumentation, preventing shutdowns that could lead to costly downtime.
3. Mining & Heavy‑Duty Industrial Sites
Mining operations rely on stable power for ventilation systems, conveyor belts, monitoring equipment, and communication networks. The 40kVA UPS system withstands vibration, dust, and fluctuating loads.
4. Water Treatment & Utility Plants
Critical infrastructure such as pumps, SCADA systems, and monitoring equipment must remain operational 24/7. The high voltage industrial UPS 40kVA solution provides clean power to avoid service interruptions.
5. Pharmaceutical & Food Processing Facilities
Precision environmental control, sterilization systems, and automated packaging lines require stable power to maintain compliance and product quality.
Why the ET40K HV Delivers Superior Critical Load Protection
Choosing the right 40kVA UPS system means more than just capacity—it requires unmatched reliability, efficiency, and scalability. Prostar ET40K HV industrial ups offers:
- Zero risk of power interruption thanks to true double-conversion topology.
- Energy savings through high-efficiency operation.
- Future-proof scalability via parallel redundancy.
- Lower total cost of ownership with long battery life and easy maintenance.
If you’re comparing options for a reliable 40kVA UPS system for factory backup, consider Prostar ET40K HV model. It consistently outperforms competitors in real-world high-voltage deployments.
FAQ
Q1:What makes the ET40K HV different from standard 40kVA UPS systems?
It’s a dedicated 480V 40kVA UPS system with DSP/IGBT technology. It offers zero transfer time. It provides full support for unbalanced loads. These features are optimized for North American 480V critical loads.
Q2: Can the three phase UPS 40kVA be paralleled for higher capacity?
Yes—up to 8 units can operate in parallel for N+1 redundancy and expanded power needs.
Q3: How does the 40kVA three phase UPS 480V for critical loads improve uptime?
By isolating loads from all power disturbances and providing instantaneous battery backup, it eliminates downtime risks.
Q4: What type of batteries does the ET40K HV industrial UPS 480V use?
The UPS supports VRLA and lithium‑ion battery options, giving users flexibility in runtime, lifespan, and maintenance requirements.
Q5: What monitoring options of three phase UPS 40kVA are available?
The UPS includes SNMP, RS232, RS485, USB, dry contacts, and WiFi kit, enabling real‑time monitoring, remote control, and predictive maintenance.