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BK-RM50-400KVA丨Three-Phase Modular UPS丨Online Double-Conversion UPS
PRODUCT PARAMETERS
Description
Product Overview
The BK-RM Series is a high-performance modular UPS (Uninterruptible Power Supply) featuring 3-phase three-wire design, advanced modular architecture, and N+X parallel redundancy technology. As a core 3 phase modular UPS solution, its capacity ranges from 300KVA to 600KVA, enabling global users to flexibly configure capacity based on actual needs and adopt phased investment strategies—ideal for cost optimization in growing businesses.
This N+X redundant modular UPS fully addresses common global power supply issues, including power outages, overvoltage, undervoltage, voltage fluctuations, frequency drift, surges, spikes, dips, waveform distortion, and harmonic interference. It delivers stable and reliable critical power protection for mission-critical equipment, complying with global grid standards (380/400/415VAC) to meet the power requirements of diverse regions worldwide.
Application Areas
This modular UPS system is tailored for scenarios demanding high-reliability power supply across global industries:
Key Infrastructure
- Data centers (cloud computing, colocation facilities)
- Traffic dispatching systems (smart city transportation networks)
- Security monitoring systems (critical infrastructure surveillance)
Industrial Fields
- Industrial automation equipment (smart manufacturing lines)
- Production line critical power supply (precision machining processes)
- Manufacturing process control systems (chemical & electronics production)
Commercial & Financial Sectors
- Corporate data rooms (global enterprise IT infrastructure)
- Financial institution core equipment (banking & stock transaction systems)
- Commercial office building critical loads (HVAC & emergency systems)
- Transaction processing centers (global e-commerce & payment platforms)
Product Features
Full Digital Control for Modular UPS
All components of this modular UPS adopt full digital control technology, achieving superior performance indicators and a stable, reliable control system. It accurately responds to global grid variations, ensuring consistent power output for critical loads.
High Power Density & Hot-Swappable UPS Modules
The 50KVA hot-swappable UPS modules support online hot-swapping, allowing users to add or remove modules without shutting down the system. The rack-mountable design saves data center floor space and reduces wiring complexity—aligning with global data center efficiency standards.
Independent Air Duct Design for Modular UPS
Configurable charging current and automatic smooth switching between charging modes (constant current, constant voltage, floating charge) adapt to 10-50 battery cells. This extends battery lifespan and supports global battery standards, reducing maintenance costs for international users.
LCD Display & Multi-Language Support (Global Use)
Equipped with a touch LCD screen supporting Chinese and English—critical for global teams. LED indicators provide intuitive operational status, facilitating on-site monitoring and parameter setting for international technicians.
Emergency Shutdown (EPO) for Global Safety Compliance
The integrated emergency shutdown button quickly cuts off UPS output in emergencies, complying with global safety standards (IEC/EN 62040-1) to protect personnel and equipment worldwide.
Specifications
| Model | BK-RM50-400KVA | |
| Basic Information | Phase | 3 Phase In / 3 Phase Out |
| Cabinet Capacity | 400KVA/400KW | |
| Power Module Capacity | 50KVA/50KW | |
| Max Power Modules | 8 | |
| Main Input | Nominal Voltage | 380/400/415VAC（3Ph+N+G） |
| Voltage Range | 138~485Vac (no derating above 305Vac) | |
| Frequency Range | 40~70Hz | |
| Power Factor | ≥0.99 | |
| THDi | ≤3% (100% linear load) | |
| Bypass Input | Voltage | 380/400/415VAC |
| Voltage Upper Limit | +25% (optional: +10%, +15%, +20%) | |
| Voltage Lower Limit | -45% (optional: -10%, -20%, -30%) | |
| Frequency Tracking Range | ±10% Hz | |
| Power Walk In Function | Supported | |
| Generator Compatibility | Supported | |
| Output | Nominal Voltage | 380/400/415VAC（3Ph+N+G） |
| Voltage Accuracy | ±1% | |
| Frequency (Mains Mode) | Synchronized with input; adjustable tracking range (±1%, ±2%, ±4%, ±5%) | |
| Frequency (Battery Mode) | 50/60±0.1Hz | |
| Load Peak Ratio | 3:1 | |
| Transfer Time | 0ms | |
| Overload Capacity | ≤110%: 60min; ≤125%: 10min; ≤150%: 1min; ＞150%: switch to bypass immediately | |
| THDV | ≤2% (100% linear load); ≤3% (100% non-linear load) | |
| Efficiency | ≥96% | |
| Communication Interface | RS232, RS485, 2 Intelligent Slots, Dry Contacts, CAN | |
| Battery/Charger | Voltage Range | ±180VDC~±300VDC (30~50 cells optional) |
| Power Module Charging Current | 20A max | |
| Environment | Operating Temperature | 0℃~40℃ |
| Storage Temperature | -25℃~55℃ | |
| Relative Humidity | 0~95% (non-condensing) | |
| Altitude | ＜1500m (derating required above 1500m) | |
| Noise Level (1m distance) | ＜68dB | |
| Standards | Safety | IEC 62040-1:2017 / EN 62040-1 |
| EMC | IEC 62040-2:2018 / EN 62040-2 | |
| Performance and Test Methods | IEC 62040-3:2021 / EN 62040-3 | |
Model Comparison Chart
| Model | Dimensions (D×W×H) | Weight | ||
| Cabinet | Power Module | Cabinet | Power Module | |
| BK-RM-300KVA | 850×600×2000mm | 625×440×130 mm | 280 Kg | 32 Kg |
| BK-RM-400 KVA | 850×1200×2000 mm | 625×440×130 mm | 600 Kg | 32 Kg |
| BK-RM-500 KVA | 850×1200×2000 mm | 625×440×130 mm | 650 Kg | 32 Kg |
| BK-RM-600 KVA | 850×1200×2000 mm | 625×440×130 mm | 720 Kg | 32 Kg |
FAQs
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