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SI48 3U (48V / 21-48A)

SI48-48-33

The SI48-48 power systems have been designed for powering the 48V DC devices with the DC current of up to 48A in a common positive bus system.

The power systems are built on the basis of hot plug rectifiers. In the power systems, you can mount up to four rectifiers increasing in this way  the maximum current efficiency.

The system of the device provides direct floating operation (rectifier units and powered devices are connected with rechargeable battery banks in parallel).

All the connections of the power systems are made on the back panel, but the entire service process, including exchange of fuses, is possible on the front panel.

Mains AC 3x230V/400V
Nominal output voltage 48V
Output current 36A
Power 1800W
Communication RS485

 

  • professional telecommunications (telephone exchanges and access systems)
  • subscriber telecommunications
  • industrial automation systems
  • communication via RS-485
  • cooperation with external communication modules
  • cooperation with computer software
  • record of event history in non-volatile memory
  • input for two external alarms
  • digital measurement of voltage, current and temperature
  • optical, audible and remote signalization
  • full control of correct operation
  • overload control outputs
  • battery continuity check and LVDD
  • low and high battery voltage control
  • automatic battery charging with charging current limitation
  • precise maintenance of floating operation voltage - dependence on temperature

 

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