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The YT-UM series 25-250kVA three-phase input and three-phase output UPS power supplies adopt a modular design and N+X parallel redundancy technology. The product capacity covers various power ranges from 25kVA to 250kVA, allowing users flexible configuration and gradual investment. This series of UPS can almost completely solve all power problems, such as power outages, high mains voltage, low mains voltage, voltage dips, amplitude oscillations, high-voltage pulses, voltage fluctuations, surge voltage, harmonic distortion, noise interference, and frequency fluctuations.
This product has a wide range of applications, providing safe, stable, reliable and environmentally friendly power supply for critical loads in various industries such as telecommunications, finance, education, transportation, broadcasting, healthcare, and manufacturing.
This series of UPS systems utilizes fully digital control across all components, resulting in excellent performance across all aspects.
Each module has a capacity of 25KVA, and all modules are 2U in height; UPS modules can be added and removed online.
Utilizes a 19-inch standard rack design, offering an aesthetically pleasing appearance and perfectly matching data center application environments.
When the number of redundant modules reaches two or more, system availability reaches 99.99996%, and the MTBF (Mean Time Between Failures) exceeds 250,000 hours; supports parallel operation of up to four racks, with shared battery banks during parallel operation.
Users can set the charging current; constant current, constant voltage, and float charging modes can be automatically and smoothly switched; battery capacity is selectable from 30 to 50 cells.
Features a large LCD display in the rack with touch functionality; Chinese/English bilingual options are available.
In case of emergency, the system can switch to maintenance bypass power supply, allowing maintenance personnel to safely perform online maintenance. Pressing the EPO button in an emergency will shut down the unit; it also features a remote emergency shutdown (REPO) function.
The centralized monitoring module is hot-swappable, has an RS485 communication interface, and can be equipped with optional accessories such as SNMP cards, relays, and dry contact cards.
| Category | Parameter | Value |
|---|---|---|
| Model | Model | YT-UM / 25-75 / 25-125 / 25-150 / 25-250 |
| Capacity | Cabinet Capacity (kVA) | 25-75 / 25-125 / 25-150 / 25-250 |
| Power Module (kVA) | 25 | |
| Input | Input Wiring System | 3-Phase 4-Wire + Ground |
| Rated Voltage (Vac) | 380/400/415 | |
| Voltage Range (Vac) | 208~478 | |
| Frequency Range (Hz) | 40~70 | |
| Power Factor | ≥0.99 | |
| Bypass Range | 380 upper: 25% (+10%,+15%,+20% opt); 400 upper: 20% (+10%,+15% opt); 415 upper: 15% (+10% opt); Lower: -45% (-20%,-30% opt) | |
| Bypass Current THDi | ≤3% (100% non-linear load) | |
| Output | Output Wiring System | 3-Phase 4-Wire + Ground |
| Rated Voltage (Vac) | 380/400/415 | |
| Power Factor | 1 | |
| Voltage Accuracy | ±1% | |
| Output Frequency (Mains Mode) | Synchronized with input; when input frequency exceeds max ±10% (adjustable ±1%,±2%,±4%,±5%), output frequency 50×(±0.2%)Hz | |
| Output Frequency (Battery Mode) | (50/60 ±0.2%)Hz | |
| Load Crest Ratio | 3:1 | |
| Transfer Time | Mains to battery: 0ms (tracking); Mains to bypass: 0ms | |
| Overload Capacity | ≤110%: 60min; ≤125%: 10min; ≤150%: 1min; ≥150%: immediate transfer to bypass | |
| Output Voltage THDv | ≤2% (100% linear load); ≤5% (100% non-linear load) | |
| Efficiency | 96% | |
| Communication | Communication Interfaces | RS232, RS485, 2 x Intelligent Slots, dry contacts |
| Battery | Battery Voltage | Adjustable: ±180/±192/±204/±216/±228/±240/±252/±264/±276/±288/±300Vdc (30-50 cells optional) |
| Charging Current (A) - Cabinet | Max 30 / Max 50 / Max 60 / Max 100 | |
| Charging Current (A) - Module | Max 10 | |
| Environment | Operating Temperature | 0°C ~ 40°C |
| Relative Humidity | 0~95% (non-condensing) | |
| Storage Temperature | -25°C ~ 55°C | |
| Altitude | <1500m | |
| Physical | Cabinet Dimensions (D×W×H mm) | 850×600×1350 / 850×600×1350 / 850×600×1550 / 850×600×2000 |
| Module Dimensions (mm) | 620×440×86 | |
| Cabinet Net Weight (kg) | 158 / 158(186) / 167 / 245 | |
| Module Net Weight (kg) | 21.6 |