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Microprocessor Controlled Offline UPS
Features
Micro-Processor Based Control
  Ultra-Thin Profile
  2 MS Transfer Time
  Low Voltage Protection
  High Voltage Protection
Low Battery Protection
Constant voltage/Constant Current Charger
Overload Protection
90% Inverter Efficiency
Single PCB for Instant Servicing
Upto 45 minutes Load Dependent Backup Time
Maintenance free batteries
Option for Increased back Up time using automotive Batteries
Technical Specifications
Input Voltage : 230V A.C. 50Hz. Nominal ± 15%
  Output Voltage (Normal) : 230V A.C. 50 Hz.
  Capacity : 550VA
  Battery Rating : 12V 6.5 Ah x 2
  Battery Type : Sealed, Maintenance Free
Output Voltage (Inverter) : 230V A.C. single phase ± 3%
Output Frequency (Inverter) : 50Hz ± 1%
Overvoltage Protection : Transfer to Inverter, when supply voltage is 10% above nominal voltage. Retransfer to line at 5% of nominal voltage.
Undervoltage Protection : Transfer to inverter at - 15%. Retransfer to line at - 10% of nominal input voltage.
Transfer time : 2 ms (Typical)
UPS System : Off-Line
Waveform : Quasi-squarewave. Suitable for computers and micro-processor based systems.
Backup time : 30 to 45 minutes depending on the load connected. See note below.
Surge Suppression : Clamping Voltage : 765Vat50A. Energy Rating: 80 joules (2ms).
Overload and Short Circuit Protection : Electronic and by fuse
EMI/RFI Filter : 0.15MHz at 1OdB,30MHz at 50dB
Recepticles : Three 5 pin 5A sockets at the rear.
Operating Temperature : 0-40°C
Operating Humidity : 0-90%, non condensing
Dimensions & Weight : 365x375x75mm
Weight : 12Kgs. approx.
Note : Back-up time calculated using ideal conditions. It may slightly differ between unit the battery condition and ambient temperature.

Schematic Diagram
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