uZen UPS 303 – 3/3 Phase

ZENER UZEN UPSThe ZENER uZen 303 is a Three phase input-Three phase output UPS ideal for industrial application with regenerative loads. Designed for harsh electrical and environmental conditions this is a long life model.

With todays increased process automation, continuous production lines, power sensitive production equipment and high raw material cost, losses due to interruption of power or equipment failure could lead to high cost of manufacture. The uZen range of UPS systems are typically used in Data Centers, IT & ITES industry and Automated Industrial systems where an unexpected power disruption could cause serious business disruption, Data Loss, Injuries, etc. to protect sophisticated IT equipment, Medical Equipment, Computers, Telecommunication Equipment and other Electrical Equipment.

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Technical Data

CAPACITY 7.5 - 120kVA
DC BUS 192V / 240V / 360V / 384V


Mains Voltage 415VAC,3PH & N
Mains Range 330V - 470V
Mains Frequency 50 Hz ± 10%


Charger Type CC / CV
Charger Current limit Adjustable, normally set at 10% of Ah capacity


Technology High Frequency PWM
Nominal Output Voltage 400V / 415AC ( Adjustible)
Regulation ±1%
Waveform Sinusoidal
Frequency 50 Hz ± 0.25Hz
Crest Factor 3:1
Over Load Capacity 125% - 1 min & 150% - 10 Secs
Power Factor 0.8 lag to unity
Power Device IGBT
Transient Response Output remains within ± 5% & recover to normal with in 20msec
Static Switch Optional
Super Bypass Switch Available


Input MCBs at Input & Output, MOVs, Snubber Circuits, Fastblow SemiConductor Fuse and Soft start, Single Phase Protection
Inverter Over Voltage / Under Voltage 440V / 380V AC
General Protections Semiconductor Fuse, MCB, EMI Filters, Over Temperature, Mains High Voltage & Short Circuit
Low Battery Trip Yes
Enclosure Protection IP - 20


Efficiency > 92%
Isolation Online UPS with Galvanic Isolation for comprehensive power protection
LED Indications Mains ON, Charger ON, Inverter ON, Battery Low, Over Load, Charger Trip, Inverter Trip, Over Temp, On Bypass
LCD Display Mains Voltage, Output Voltage, Load Current, Battery Voltage, Output Frequency, Temperature
Audible Alarms Input Low / Fail, Over Load, Battery Low, Over Temp, Inverter Trip
Cooling Forced Air


Ambient Temperature 0 - 45ºC
Noise Level <60 db @ 1.5 meter
Relative Humidity 0 - 90% Non condensing
Mobility Castor Wheels

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