MR33 Series 50-600kVA

The Kehua MR33 series modularized 3-Phase in, 3-Phase out UPS utilizes advanced 3 level inverter technology, a more reliable redundancy design from the entire system down to the components, and digital technology interconnection. It has the advantages of high efficiency, high power density, easy scaling, scaling on demand, and occupies only a small amount of floor area and provides safe, reliable, and clear environmentally friendly power to loads.

MR33 Series 50-600kVA

Advanced Technology

● Online double conversion
● Battery cold start function
● Advanced power module sleep mode
● Dual system control card
● Self-load test function
● Redundant design
● Compatible with lithium battery

Excellent Flexibility

● Allow 100% three phase unbalance load
● Intelligent battery management
● Parallel expansion up to 8 units
● Fault Trace Management (FTM)
● Programmable dry contacts
● Fault Trace Management (Black box)
● Bypass power source N+1

Green Power

● Efficiency up to 96%
● Intelligent fan speed control
● ECO mode and EPO function

Power ModuleMR3330-JMR3350-J
Capacity (kW)3050
Rated Voltage (Vac)380/400/415
Voltage Range (Vac)L:L 138~485
Input Frequency (Hz)40~70
Bypass Voltage Range (Vac)-15% (-20%/-30% optional) ~+15%(+10% /+20% optional)
Power Factor≥0.99
THDi3% (linear load)
Battery Voltage (Vdc)±192 (±168~±276settable)±192 (±180~±276settable)±240 (±168~±276 settable)
Charging Current (A)N×10 Maximum (N: the number of power modules)
Capacity (kVA)120200300400500600
Power Factor1
Waveformsine wave
Voltage (Vac)L-L:380, 400, 415±1%
Frequency (Hz)50/60± 0.2% (battery mode)
Three Phase Difference≤1 degrees
THDv≤1% (linear load, full load), ≤4%   (nolinear load, full load)
Static Bypass Transfer Time0
Max. System Efficiency97%
Parallel ModeAdvanced no-master-slave parallel technology,   N+1  redundancy
Overload Capacity106-110% load for 60mins, 111%-130% load for 10mins, 131%-150% load for 1 min, 151%-200% load for 200ms
Working Temperature (°C)-5~40
Storage Temperature (°C)-40~70
Relative Humidity0%~95%, no condensing
Battery TypeLead-acid batteries and lithium iron phosphate batteries
Communication InterfaceRS485, RS232, dry contact (SNMP optional)
Noise (dB)< 65< 70
Dimension   (W×D×H) (mm)600×860×20001200×860×2000

  Weight (kg)

Bypass Module171925253131
Power Module2733

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