Modular UPS | 600kVA/600kW | 4 Breakers | +/-192VDC~+/-240VDC | 12 x 50KW Power Module
In modern data centers and industrial environments, power continuity is mission-critical. However, traditional UPS systems often lack scalability and redundancy, leading to costly downtime and complex upgrades.
Prostar MPS600K-50K best double conversion modular online ups 600kva designed to provide reliable and efficient power protection for critical applications. This system is engineered with advanced modular architecture. The modular online ups 600kva ensures maximum uptime, flexibility, and ease of maintenance. This is beneficial for data centers, industrial facilities, healthcare institutions, and large enterprise IT environments.
The MPS600K-50K modular online UPS from Prostar delivers a highly scalable, N+X redundant power solution designed for mission-critical applications requiring maximum uptime and flexibility.

True Double Conversion Online Technology
Provides continuous, clean, and stable power by isolating critical loads from all utility power anomalies, including sags, surges, harmonics, and outages. Zero transfer time to battery mode ensures uninterrupted power supply during grid failures.
Modular Scalability
Built with 50kVA hot-swappable power modules, allowing seamless capacity expansion from initial deployment up to 600kVA (12 modules in parallel).
High Efficiency (Online Mode)
Peak Efficiency: Up to 95.5% in double-conversion mode.
The high efficiency reduces heat dissipation. It lowers cooling requirements and operational costs. As a result, there is a lower TCO (Total Cost of Ownership) and PUE (Power Usage Effectiveness) for your facility.
The modular architecture allows for configurable redundancy. Users can configure the system for N+1 or N+X redundancy. This setup ensures that if one module fails, the remaining modules instantly take over the full load. There is no interruption, guaranteeing 100% load availability.
Hot-Swappable Design
Power modules, control units, and fan assemblies can be replaced without shutting down the system or interrupting protected loads.
Remote Management
The system is equipped with multiple communication slots for SNMP, Modbus, and TCP/IP protocols. This allows seamless integration with data center infrastructure management (DCIM) platforms and remote monitoring tools.
Compact Footprint & Flexible Installation
Space-saving rack-mount or floor-standing design fits seamlessly into existing infrastructure. Top or bottom cable entry options simplify installation in diverse facility layouts.

The system is constructed using hot-swappable 50kVA power modules. A standard cabinet can house up to 10 modules to achieve the full 600kVA capacity. These modules are “Plug-and-Play.” If a module fails, it can be removed and a new one inserted while the UPS remains online. This reduces the Mean Time to Repair (MTTR) to minutes. It also eliminates the need to switch the critical load to unprotected bypass power. More details: MPS50K 3 phase modular ups hot-swappable power module 50kW
For enterprise environments that need more power capacity than a single unit, modular online ups 600kva supports seamless system-level parallelization. It is also suitable for environments requiring the highest levels of fault tolerance. By connecting two 600kVA Modular Online UPS systems in parallel, organizations can achieve a massive 1.2 MVA (1200 kVA) power protection solution. This configuration offers the inherent benefits of internal module redundancy. The modular online ups also provides system-level redundancy. Together, these create an ultra-resilient power infrastructure. This is ideal for hyperscale data centers, large industrial plants, and critical national infrastructure.

The parallel architecture minimizes risks associated with power failure, as multiple modules provide backup support. Users can start with a smaller capacity and expand the system as required, making it a scalable investment. A centralized control system can monitor multiple modules, simplifying management and maintenance tasks.
Wiring a modular UPS cabinet correctly is crucial for ensuring optimal performance, safety, and reliability in power distribution. Proper wiring will facilitate efficient interconnection between modules and the associated electrical systems.

Input Power Distribution
Wires connecting the mains supply to the UPS modules, usually requiring appropriate circuit breakers.
Battery Connections
Connections between the UPS modules and the battery packs, ensuring correct voltage and ratings.
Output Connections
Wires linking the UPS output to the load, including breaker protection for the connected equipment.
Communications Wiring
Cables for monitoring and communicating between UPS modules, including connection to management systems.
Ground Connections
Grounding wires to prevent electrical faults and enhance safety, ensuring proper earthing of the entire system.
Installation Checklist
| Component | Requirement |
| Cable Sizing | Based on 600kVA max capacity (approx. 900A-1000A per phase). |
| Phase Rotation | Must be L1-L2-L3 clockwise; the UPS will fault if phases are reversed. |
| Torque | All busbar bolts must be torqued to specific N-m settings to prevent “hot spots.” |
| Ventilation | Maintain at least 50cm-80cm clearance at the rear for exhaust airflow. |
| Item | Specification |
|---|---|
| UPS Type | Modular Online UPS (Double Conversion) |
| Rated Capacity | 600kVA / 600kW |
| Power Factor | 1.0 |
| Power Module | 50kVA / 50kW |
| Phase | 3 Phase In / 3 Phase Out |
| Input Voltage | 380/400/415Vac (optional) |
| Output Voltage | 380/400/415Vac |
| Input Frequency | 50/60Hz, 40Hz ~70Hz |
| Output Frequency | 50/60Hz, 46Hz ~ 54Hz or 56Hz ~ 64Hz |
| Transfer Time | 0ms |
| Battery Voltage | ±192VDC ~ ±240VDC |
| Output Waveform | Pure Sine Wave |
| Efficiency | Utility Mode: 95.5%; ECO Mode: 98.5%; Battery Mode: 94.5% |
| Overload Capacity | 60 mins for 110%, 10 mins for 111%-120%,; 1 min for 121%-150%, 200ms for >150% |
| Display | LCD display |
| Communication | RS232 / RS485 / Dry Contact / SNMP (optional) |
| Parallel Function | Supported |
| Protection | Overload, short circuit, over-temperature, battery low voltage, etc. |
| Application | Data center, telecom, hospital, industrial, banking |
| Feature | Modular UPS | Traditional UPS |
|---|---|---|
| Scalability | High (expandable) | Limited |
| Maintenance | Hot-swappable | System shutdown required |
| Reliability | N+X redundancy | Single point failure |
| Investment | Flexible | High upfront |
A modular online UPS provides higher availability, lower TCO, and future-proof scalability, making it ideal for modern power infrastructure.




Deploying two MPS600K-50K systems in parallel is not just about adding capacity; it is about engineering maximum resilience. This architecture removes the single point of failure at the cabinet level. It offers a “fail-safe” environment where maintenance, upgrades, or unexpected faults in one unit never impact the critical load.
With its hot-swappable modularity, this configuration demonstrates intelligent load balancing. It ensures future-proof scalability. The dual MPS600K-50K modular online ups 600kva configuration represents the gold standard in large-scale power protection.
A modular online UPS is a scalable power protection system composed of multiple power modules working together, providing continuous power with redundancy and easy expansion.
Because it offers N+X redundancy, hot-swappable modules, and scalable capacity, ensuring maximum uptime and flexibility for growing infrastructure.
It converts AC power to DC and then back to AC, ensuring clean and stable output power regardless of input conditions.
A 600kVA UPS supports large-scale critical loads such as data centers, industrial systems, and telecom infrastructure with high reliability.
Yes, modern modular UPS systems are compatible with lithium-ion and VRLA batteries, offering flexible energy storage options.
| Model | MPS600K-50K |
| PHASE | 3-phase in/3-phase out |
| CABINET CAPACITY* | 600kVA / 600kW |
| BATTERY TYPE | External Battery |
| POWER MODULE CAPACITY | 50kVA / 50kW |
| MAX. POWER MODULE NO. | 12 |
| SWITCHES NO. | 4 |
| INPUT | |
| Nominal Voltage | 380VAC/400VAC/415VAC (3P+N+PE) |
| Voltage Range | 110-300VAC@50% load; 176-276VAC@100% load |
| Nominal Frequency | 50/60Hz (Auto Sensing) |
| Frequency Range | 40Hz ~70Hz |
| Power Factor | > 0.99 @ 100% Load, >0.98 @ 50% Load |
| Harmonic Distortion (THDi) | < 4% @ 100% load |
| OUTPUT | |
| Nominal Voltage | 380VAC/400VAC/415VAC (3P+N+PE) |
| Voltage Regulation (Steady state) | ≦ ± 1% Typical (balanced load) ; ≦ ± 2% Typical (unbalanced load) |
| Voltage Regulation (Transient) | ≦ ± 5% Typical |
| Nominal Frequency | 50/60Hz |
| Frequency Range (Synchronized) | 46Hz ~ 54Hz or 56Hz ~ 64Hz |
| Overload Capability | 60 mins for 110%, 10 mins for 111%-120%,; 1 min for 121%-150%, 200ms for >150% |
| Harmonic Distortion | ≦2% THD (Linear Load) ; ≦ 4% THD (Non-linear Load |
| Efficiency | Utility Mode: 95.5%; ECO Mode: 98.5%; Battery Mode: 94.5% |
| Crest Factor | 3:1 |
| Wave Form | Pure Sine Wave |
| BATTERY / CHARGER | |
| Nominal Voltage | +/- 192V ~ +/- 240V(Selectable) |
| Maximum Voltage | +/- 240V (12V x 40 pcs) |
| Minimum Voltage | +/- 192V (12V x 32 pcs) |
| Float Charging Voltage | 2.28V / Cell (2.25V ~ 2.33V selectable) |
| Boost Charging Voltage | 2.35V / Cell |
| Temperature Compensation | Yes |
| Max. Charging Current (Per Power Module) | 12A (Adjustable) |
| PHYSICAL | |
| Cabinet Dimension (D x W x H) mm | 1200 x 850 x 2000 |
| Net Weight (Kg) | 690 |
| ENVIRONMENT | |
| Operating Temperature | 0 ~ 40°C |
| Relative Humidity | 0 ~ 95% non-condensing |
| Altitude | <1000m for Nominal power |
| IP Class | IP 20 |
| MANAGEMENT | |
| Smart RS-232/USB | Supports Windows 2000/2003/XP/Vista/2008, Windows 7/8, Linux, Unix, and MAC |
| Optional SNMP | Power management from SNMP manager and web browser |
| STANDARDS | |
| Safety | IEC/EN 62040-1 |
| EMC | IEC/EN 62040-2 Category C3 |