uZen UPS 301 – 3/1 Phase

ZENER UZEN UPSThe ZENER uZen 301 series is a Three phase input-single phase output, double conversion, regenerative, VFI, MPWM, IGBT, microprocessor based UPS with galvanic isolation for comprehensive power protection. The Galvanic isolation via transformer (as per IEC62040) eliminates problems associated with common mode noise, neutral and earth potential drifts which can cause irreparable loss.

Designed and built for the harsh Indian power conditions, these UPS systems are capable of delivering highly demanding surge loads without performance de-rating. Complies with all international standards.

Download Brochure

Technical Data

DC BUS120V /192V /240V / 360V


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 Voltage230V / 240AC ( 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 Voltage255VAC / 185V
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

Download Brochure