RT III Lithium UPS 2 KW

RT III Lithium

The RT III Lithium can provide long bridging times due to the external lithium battery and offers an exceptionally high cycle stability with up to 6000 charge/discharge cycles. The RT III Lithium provides an output power factor of 1.0 with a sinusoidal output voltage curve. With the adjustable current distribution, non-critical loads can be switched off in battery mode to extend the autonomy time.



  • UPS classification VFI-SS-111 according to IEC 62040-3
  • VFI sine wave output can be switched to ECO-Mode (line-interactive)
  • Compact design of only 2 U and 4U / 5U with Lithium battery
  • Large voltage input range
  • UPS software for the common OS
  • Incl. RS232 / USB and expansion slot

Special feature

  • Unique energy density: High bridging times with low space requirements and weight.
  • High charge/discharge rate of the lithium battery (up to 6000)
  • Ideal for mobile applications such as mobile workstations / cradles
  • Can operate in higher ambient temperature than conventional UPS (up to 50°C)
  • Excellent power factor of 1.0
  • Battery management system integrated in the battery


Modell RT III Lithium 2 kVA
Power Power in VA/W 2000/2000
Autonomy time @ (100% / 50% load) 1 x Lithium battery US2000 approx. 60 / 120 Min.
Higher autonomy times on request
Technology Online double conversion VFI-SS-111 gemäß IEC 62040-3
Phase Input / Output 1-phase / 1-phase
Input Nominal voltage configurable 230, 240 VAC
Input voltage range 160-300 VAC, ±5%
Input frequency range 40-70 Hz (auto-sensing)
Output Output voltage 230, 240 VAC
Voltage regulation ±1%
Output frequency range 47~53 Hz (@ 50 Hz) or 57~63 Hz (@ 60 Hz)
changeover time none
Overload Capability (line mode) 105~110% for 10min, 110~130% for 1min,
130~150% for 5sec
>150% immediate switchover to bypass
Overload Capability (battery mode) 105~110% for 1min, 110~130% for 5sec
>130% immediate shutdown of the UPS output
Voltage form sine wave
Efficiency Normal mode >92%
ECO-mode >96%
Battery Type Lithium Ion (LiFePo4) battery with 48V, 50Ah
Life time up to 15 years
Charging current (max) 12 A
Communication Interfaces RS 232 or USB
Slot for further communication cards 1 x for SNMP- or relay card
Display LC-Display and LEDs
Dimensions / Weight Dimensions UPS (HxWxD in mm)
as 19” rack-mountable device
Dimensions of battery extension
(HxWxD in mm)
89x442x410 or 132x442x420
Weight ups 8,3 kg
Weight Lithium battery 24 kg or 32 kg
Protection IP20
Terminals Input IEC (16 A)
Output programmable in segments 8 x IEC C13 (10A)
Environmental conditions Temperature 0~50°C
Humidity 20~90% (non-condensing)
Acoustic Noise <50 dB (1 m)
Safety / Enclosure Safety (ups) IEC/EN62040-1, IEC/EN60950-1
EMC IEC/EN62040-2, IEC61000-4-2, IEC61000-4-3, IEC61000-4-4,
IEC61000-4-5, IEC61000-4-6, IEC61000-4-8
Certification (ups) CE
Certifications Lithium battery TüV / CE / UN38.8
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