The versatility of convertible rack/tower UPS SR LCD series, on-line double conversion with DSP technology, Digital Signal Processor, is the perfect solution for powering sensitive “mission critical” users that require reliability and performance from a static UPS. Input power factor correction and high reliability provide a higher level of Power Quality for all sensitive electronic devices and safety devices such as electromedical devices.


The backup series is composed by: Rectifier, Inverter, Static Switch, manual by-pass and Battery.
The Rectifier-Inverter line normally feeds the users, and the Battery is kept charged by the Rectifier.
If a black out occurs, the Battery supplies power energy to users always through the Inverter. When the blackout is over, the Rectifier provides for Battery charge.
If a short circuit or an overload occurs to the users, the Static By-pass switches the load over the emergency line. When the fault is over, the Inverter feeds users.

  • ONLINE double conversion technology
  • Output power factor PF 0.9
  • Versatility rack/tower with rotating LCD
  • Sinusoidal voltage, filtered & stabilized
  • Power factor correction
  • Wide tolerance on the input voltage without battery intervention
  • Zero intervention time
  • Cold start, UPS start from battery or from mains
  • Additional battery modules
  • Automatic and manual battery test
  • LCD display for measurements and system parameters
  • Full discharge battery protection
  • Remote start / stop function
  • EPO, RS232 & USB standard
  • 50 or 60Hz converter function

Main accessory feature

  • dry contacts, RS485 and SNMP interfaces
  • CEI 0-16 version
  • External manual by-pass
  • External isolation transformer

The front panel provides all the major parameters and the operating status of the UPS, which includes complete diagnostics and a simple user interface.


Each UPS of the SR LCD series is equipped in standard configuration with an RS232 and USB communication port, which allow connection with the software, supplied free of charge on request, for remote monitoring of the UPS status via PC.


Several optional interface cards are available for various communication requirements. All optional communication ports can be activated and used simultaneously for monitoring the status of the UPS; UPS control can take place via only one communication interface at a time (the one with the highest priority).

Emergency Power Off, the EPO terminal, located on the back of the UPS, uses a NO contact which, if closed, starts the shutdown sequence. Through a dedicated tool it is possible to configure it NC or it can be set up for remote start and shutdown.

Slot for optional interface.
USB port
RS232 port
Connector for external battery
AC outlet sockets
Input switch
Input cable socket
Output switches for two lines (optional).


Additional battery cabinets to upgrade the backup time till several hours even after the first installation. On request the add battery cabinet can be provided with an external independent battery charger to guarantee a fast recharge.

RACPDU216G, External Bypass Switch Box Series. The external maintenance bypass and power output distribution switch allows you to manually transfer the connected equipment to utility power via a maintenance bypass switch and vice versa.

Guide kit for UPS support in rack cabinet. Compatible with all ELIT UPS rack series.


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