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

CAPACITY7.5 - 200kVA
DC BUS192V / 240V / 360V / 384V


Mains Voltage415VAC,3PH & N
Mains Range330V - 470V
Mains Frequency50 Hz ± 10%


Charger TypeCC / CV
Charger Current limitAdjustable, normally set at 10% of Ah capacity


TechnologyHigh Frequency PWM
Nominal Output Voltage400V / 415AC ( Adjustible)
Frequency50 Hz ± 0.25Hz
Crest Factor3:1
Over Load Capacity125% - 1 min & 150% - 10 Secs
Power Factor0.8 lag to unity
Power DeviceIGBT
Transient ResponseOutput remains within ± 5% & recover to normal with in 20msec
Static SwitchOptional
Super Bypass SwitchAvailable


InputMCBs at Input & Output, MOVs, Snubber Circuits, Fastblow SemiConductor Fuse and Soft start, Single Phase Protection
Inverter Over Voltage / Under Voltage440V / 380V AC
General ProtectionsSemiconductor Fuse, MCB, EMI Filters, Over Temperature, Mains High Voltage & Short Circuit
Low Battery TripYes
Enclosure ProtectionIP - 20


Efficiency> 92%
IsolationOnline UPS with Galvanic Isolation for comprehensive power protection
LED IndicationsMains ON, Charger ON, Inverter ON, Battery Low, Over Load, Charger Trip, Inverter Trip, Over Temp, On Bypass
LCD DisplayMains Voltage, Output Voltage, Load Current, Battery Voltage, Output Frequency, Temperature
Audible AlarmsInput Low / Fail, Over Load, Battery Low, Over Temp, Inverter Trip
CoolingForced Air


Ambient Temperature0 - 45ºC
Noise Level<60 db @ 1.5 meter
Relative Humidity0 - 90% Non condensing
MobilityCastor Wheels

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