Online UPS

Line Interactive UPS


Servo Controlled Stabilizer



Solar Product


MLF Series ONLINE UPS Systems

ST Series ONLINE UPS Systems

Salient Features

  • True On-Line Double Conversion Technology
  • Pure Sine Wave Output
  • High Frequency PWM Inverter
  • Crystal Controlled Output Frequency
  • Wide input voltage tolerance range
  • Smooth and silent operation
  • Excellent dynamic response for step load change
  • Fast automatic correction rate for line and load regulation
  • High inrush / peak current handling capacity
  • Easy to install, use and maintain
  • Inbuilt isolation

Optional Features
Static / Manual Bypass
Hot Stand By
LCD Display

Technical Specifications
Capacity 1 KVAto200KVA
Input Voltage 160-270VAC Two Wire, 330-470 VAC Four Wire
Input Frequency 47-53 Hz
Rectifier - Charger Automatic Float cum Boost Charger, Constant & Voltage Constant Current Type
Battery Input 36-360 V DC (or as per requirement)
Battery Back-up 15mins. to 8 hrs. (or as per requirement)
Output Voltage 230/415VAC (or as per requirement)
Regulation ± 1% under all Lines and Load Conditions
Output Frequency 50 Hz
Regulation ±0.05%
Inverter Efficiency Better than 90%
Waveform Pure Sine Wave (Sinusoidal)
THD < 3% at Linear Load
Transient Response ± 5% under Step Load Change
Transient Recovery within 3 Cycles
Load Power Factor 0.8 lagging
Overload Capacity 110%forl0mins./150%forl0sec
Crest Factor 3:1
Control Method Sinusoidal PWM Control
Switching Frequency above 12 kHz
Circuit Method On-Line Double Conversion, Zero Transfer Time
Ambient Temperature 0°-45°C
Relative Humidity 95% RH Max. (Non Condensing)
Audible Noise Less than 55 dB at 1.5 meters
Cooling Forced Air Type
Protections Battery Under and Over Voltage
*Specifications are subject to change without prior notice due to continuous improvement in design & technology.