As a leading UPS manufacturer and supplier, Kongu Engineers provide customers the high quality, reliability and value in each product. We manufacture and supply Line Interactive UPS systems from 500VA to 4KVA in single phase with input and output voltage 110 VAC or 220 VAC.

The Line interactive UPS backup power only switches on when the mains fails or fluctuates wildly outside the input voltage window of the built-in Automatic Voltage Stabilizer. An EMI filter will typically help to reduce spikes and electrical noise when mains is present. The line interactive uninterruptible power supply provides a clean and regulated output voltage. When the mains supply is within a specified input window the output from the Uninterruptible Power Supply is stabilized to within a specific voltage tolerance or window, this is achieved using Automatic voltage regulation techniques.

Ryben Line-interactive UPS Model

Our UPS designed specifically for India's harsh power conditions, Ryben LI-UPS state-of-the-art circuitry delivers backup power instantly, and also recharges your battery faster, so you get the longest possible battery life. Use our LI-UPS system and enjoy the security of uninterrupted power for your home or business.


  • Extended Input Voltage Range
  • Built-in AVR
  • Smart Boost function for Low Input Voltage
  • Smart Buck function for High Input Voltage
  • Extended battery backup
  • Full time EMI / RFI suppression
  • Start up without Mains (Cold start)
  • Advanced battery management
  • Rugged design and engineering for continuous use
  • Negligible battery-water loss
  • Suitable for Lead acid conventional, maintenance free, deep cycle, VRLA Batteries
  • Pre-Audio alarm and Visual indication for Battery low
  • Battery Deep Discharge Protection
  • Ultra-Fast Short Circuit Protection
  • Multifunctional LED indicator and sound alarm
  • Intelligent thermal management
  • Easy maintenance
  • Generator compatible
  • Lower electricity consumption
  • Purer sine wave and Modified sine wave output
  • Easily Serviceable
  • Simple Control and Compact Size
  • User-Friendly
  • Various Capacities to suit individual's requirements

Technical specifications

Voltage Range 155V - 300V AC
Phase Single Phase
Frequency 50Hz +/- 2 Hz
Voltage on Mains 200V - 240V AC
Voltage on Backup 230V +/- 5%
Frequency 50Hz +/- 2 Hz
Mains to Backup change over Automatic
Backup to Mains changeover Automatic
Output Waveform on Mains Same as Input
Output Waveform on Backup Pure Sine wave or Modified Sine wave up to the Models.
Battery type Lead acid Flat plate, SMF or Tubular
Voltage 12V - 120V DC  Depends upon Models
Current (Ah) Depend upon Backup requirement
Charger Type CCCV - Constant voltage and constant current
Charging Time 10-12 Hours (Depends battery Capacity)
Battery High Charging Protected 
Battery deep discharge Protected  1.75V / cell
Visual Indications Mains ON, Inverter ON, Battery LOW
Audible Alarms Battery Low
Protections Fuse, Input High and Low voltage, Battery High and Low voltage, Over Load and Short circuit
Operating temperature 0 deg. C to 55 deg. C
Humidity Up to 95% RH ( non condensing )
Cooling Natural / Forced air
Degree of protection IP20 ( as per IEC144 )

Due to Continuous Product improvements, specifications are subject to change without notice.


"RYBEN" brand name of KONGU ENGINEERS established in the year 2000. Professional manufacturer of state-of-the-art Products like Solar Inverters, Online UPS, Off-Line UPS, Sinewave Inverters, Battery Chargers, Isolation Transformers, SMPS and Servo Voltage stabilizers.

© 2018 All rights reserved. Designed By Ajna Technologies