KR33 Series 50-200kVA
3 Phase Online Transformer-free UPS (50-200kVA)
The KEHUA KR33 series 3-Phase in, 3-Phase out UPS uses advanced 3 level inverter technology and digital technology for full interconnection and has advantages such high efficiency, high power density and occupies only a small amount of floor space. It provides safe, stable, clean, and environmentally friendly power to loads and can provide safe and reliable comprehensive protection to data centers, IT server rooms, precision instruments and others.
Advanced Technology
● Three level inverter technology
● Fully digital interconnection technology
● High power density
Flexible Design
● Common battery bank sharing in parallel system
● Flexible battery configuration improves service ability
● High power density design with compact size, 120kW only cover 0.3825m2
● Frequency converter function (60Hz to 50Hz or 50Hz to 60Hz)
● Self-load test function without load enables onsite commission
● Easy onsite parallel modification
● Built-in battery quantity: 32-72 pcs configurable
Green Power
● High AC/AC efficiency up to 96%
● High power factor up to 1
● Low THDi ≤3%
| Items | KR3350 | KR3380 | KR33100 | KR33120 | KR33160 | KR33200 |
|---|---|---|---|---|---|---|
| INPUT | ||||||
| Voltage (Vac) | 380/400/415（138~485 L-L) | |||||
| Frequency (Hz) | 40~70 | |||||
| Bypass Voltage (Vac) | 380/400/415: -20%~+15% | |||||
| Power Factor | ≥0.99 | |||||
| Phase | 3φ4W+PE | |||||
| OUTPUT | ||||||
| Capacity (kVA) | 50 | 80 | 100 | 120 | 160 | 200 |
| Power Factor | 1 | |||||
| Voltage (Vac) | L－N: 220/230/240±1%L－L: 380/400/415±1% | |||||
| Frequency (Hz) | 50/60±0.1 (battery mode) | |||||
| Phase | 3φ4W+PE | |||||
| Unbalance 3-phase voltage stabilization with fullload | ≤2% | |||||
| Waveform | Pure sine wave, THD<1% at linear | |||||
| Transfer Time (ms) | 0 | |||||
| Efficiency | up to 96％ | |||||
| Overload | 105%~110% load for 60mins; 111%~130% load for 10mins; 131%~150% load for 1min; >150% load for 200ms | |||||
| BATTERY | ||||||
| Battery Voltage (Vdc) | ±192（±180/±204/±216/±228/±240 settable for long backup type） | |||||
| BATT Type | External | |||||
| Charging Current (A) | 10 | 20 | 20 | 30 | 30 | 40 |
| OTHER | ||||||
| Communication Interface | RS485, MODBUS, dry contacts(RS232, SNMP, expand dry contact card are optional in slot) | |||||
| Display | Touch screen+LED | |||||
| Alarm | AC input abnormal, low battery, overload, failure | |||||
| Protection | Output short-circuit, overload, over temperature, battery low voltage, output over/low voltage | |||||
| Noise (dB) | <65 | |||||
| Working Temperature (℃) | -5~40 | |||||
| Relative Humidity | 0~95%, no condensation | |||||
| Dimension (W×D×H)(mm) | 450×840×967 | 450×840×1400 | 600×900×1600 | |||
| Weight (kg) | 120 | 210 | 210 | 242 | 270 | 300 |
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