Technical Specifications
Models NXe NXa
Rated Power @ 0.8 PF [kVA] 10 15 20 30 40 60 80 100 120 140 160 200
Rectifier Input
Rectifier Type IGBT-based Vector Controlled PFC (PF Corrected)
Input Voltage [Vac] 380 / 400 / 415 (Accepted from 305 to 477 without batt. Use)
Input Frequency [Hz] 50 or 60 (Accepted range from 40 to 70)
Input Current THD <3% (without any Filter)
Input Power Factor ≥ 0.99 (without any Filter)
Power Walk-In [s] 5 to 30 (selectable)
Bypass Input
Input Voltage [Vac] 380 / 400 / 415
Battery
Battery Type VRLA (Valve Regulated Lead Acid) or Wet / Flooded or NiCd
End-Cell Voltage [Vdc/Cell] Selectable from 1.60 to 1.90 (for VRLA)
DC Ripple Current
(float)
<5% (of C10 AH capacity) RMS value
DC Ripple Voltage
(float & const V Ch)
<1% (RMS value)
Temp. Comp. Charge Standard (where internal batteries 10, 15, 20, 30, 40 kVA)
and Optional (for all other battery configurations)
Output
Inverter Type IGBT-based Vector, Repetitive & PI Controlled
Output Power [kW] 8 12 16 24 32 48 64 80 96 112 128 160
Output Voltage [Vac] 380 / 400 / 415 +/- 0.5 Regulation (3-phase RMS average)
Output Frequency [Hz] 50 or 60 with +/- 0.05 Regulation
Output Voltage THD 1% (max)
Max. Load Crest Factor 3:1 (compliant with IEC 62040-3)
Transient Volt. Resp. [ms] 10 to recover ± 5% of Nominal Voltage for 0% to 100% or 100% to 0% step load
Max. Leading PF Load Up to 0.9
Voltage Displacement [°el] 120°+/-10 el (with 100% unbalanced load)
Overload 110% for 60 minutes, 125% for 10 minutes, 150% for 1 minute
Efficiency
AC-AC up to 96%
Physical Parameters
Width [mm] 600 600 700 1000
Depth [mm] 700 825 825 825
Height [mm] 1400 1600 1800 1800
Weight (approx.)
without batt. [kg] 180 204 204 312 341 401 445 720 720 824 973 973
UPS Enclosure IP IP 20 (even with open front door)
Standards IEC 62040-3, IEC 62040-2, IEC 62040-1-1, IEC 60146-1-1,
IEC 61000-4-2, 4, 5, 6, 8,11, EN 50091-1-1, EN 50091-2,
EN 50091-3, EN 60950, EN 60529, ANSI C62.41 (IEEE 587)
EMC Class Class-A (Applicable for both Radiated & Conducted)
Environmental
Storage Temp. [°C] -20 to 70 (UPS) & -20 to 30 (Battery)
Operating Temp. [°C] 0 to 40 (UPS) & 25 +/-5 (Battery)
Relative Humidity 0 to 95% (non-condensing)
Maximum Altitude
above Mean Sea Level
[m] 1000 (as per IEC 62040/3)
*Available from July 2006

Liebert NX comes in 12 popular ratings: 10, 15, 20, 30, 40 60, 80, 100, 120, 140, 160 & 200kVA (400V, 50/60Hz). The complete range of NX UPS have the same look and feel. Liebert NX 10 to 40 kVA is designed to house an optional internal battery bank within the UPS cabinet for a specific run time, minimizing the UPS overall footprint. A complete range of external cabinets are available for all Liebert NX UPS. These include battery cabinets, battery cabinets, transformer cabinets, and maintenance bypass cabinets.