UPS Smart-Save Online SRV Systeme Electric 6000 VA, 4U convertible form factor, 230 V, 1:1, terminal input/output, SmartSlot, LCD, USB, version with the possibility of increasing the autonomy time, 2 cor. Form Factor: Convertible; SNMP Card: Optional; Harmonic Distortion (THD): ?3% (linear load), ?6% (non-linear load); Switching time from mains to battery, ms: 0 ms; Switching time from inverter to bypass, ms: 0 ms; Efficiency: Mains operation - 92%, Battery operation - 90%; Battery type: Lead-acid; Battery installation: External battery pack; Form Factor: Convertible; Indication: Input Voltage, Output Voltage, Mains operation, Battery Operation, Overload, Load Level, Low Battery, Battery Level, Discharge Timer, Bypass, Malfunction, No sound; Alerts: Battery operation - Sound every 4 seconds, Low battery - Sound every second, Overload - Sound every 0.5 seconds, Malfunction - Continuous sound; Software: yes (supports Windows, Windows Server, Linux, MAC OS); Shutdown Wizard: yes; SNMP optional: SNMP Web Manager; Converter mode; Generator compatibility; Automatic restart when power is restored; "Cold start; Charging in the off state; Fuse: Automatic; Battery replacement by the user; Internal bypass; Hot battery replacement; Hot connection of external battery packs General Equipment: USB A-USB B cable (1), RS232-RS232 cable (1), rack mounting ears, legs for outdoor installation, rack mounting bolts, battery connection cable