
Nominal DC voltage (intermediate circuit) 120 Vdc DC window 102 Vdc – 160 Vdc ±1%
Trickle charge voltage 137 Vdc ±1%
Battery charging current (max.) 3.5 Adc per UPS module
CommunicationInterfaces  | RS232   | |
  | RS485   | |
  | Additionally: Communication slot  | |
  | for optional expansion cards (e.g.  | |
  | AS/400 / SNMP, etc.)  | |
Shutdown software on CD  | "CompuWatch" for all common  | |
  | operating systems, e.g. Windows,  | |
  | Linux, Mac, Unix, FreeBSD,  | |
  | Novell, Sun  | |
| General data | 
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Classification  | VFI SS 111 acc. to IEC   | |
  | ||
Total efficiency   | 
  | 
  | 
PROTECT 1.M (system)  | > 88%  | 
  | 
PROTECT 1.040 (module)  | > 89%  | 
  | 
Inherent noise (1m distance)  | 
  | 
  | 
PROTECT 1.M (system)  | < 62 dB(A)  | |
PROTECT 1.040 (module)  | < 55 dB(A)  | |
Cooling type  | Forced air cooling through  | |
  | ||
Operating temperature range  | 0 °C to +40 °C  | |
  | Battery systems  | |
  | (recommended):  | |
  | +15°C to +25°C  | |
Storage temperature range  | 0°C to +40°C  | |
Relative humidity  | 20% – 90%  | |
  | 12  | 
  |