LIEBERT® NX™ 3-PHASE UPS: 250-800KVA, 50/60HZ, 380/400/415VAC - SITE PLANNING DATA
General Specifications
The Liebert NX is a true on-line,
double conversion, three-phase
UPS system .It delivers the
best combination of availability,
reliability and energy-efficiency.
INPUT
Voltage
380/400/415VAC, 50/60Hz, 3-phase 3-wire+N+ ground
Voltage Range w/o derating
+25%, -15%
Frequency Range
40-70Hz
Current Distortion
3% maximum reflected THD at full load
Current Limit
125% of full load input current
Power Factor
>0.99 lagging at full load; >0.98 lagging at half load
Surge Protection
Sustains input surges without damage, per criteria listed in IEC 61000-4-5
OUTPUT
Voltage
380/400/415VAC, 50/60Hz, 3-phase 3-wire+N+ ground
Voltage Adjustment Range
±5%
Voltage Regulation
1% for balanced load 5% for 100% unbalanced load
Dynamic Regulation
±5% deviation for 100% load step;
Transient Response Time
Recover to ±5% of output voltage within 1/2 cycle
Voltage Distortion
For linear loads, 2% THD; Less than 5% THD for 100% nonlinear loads without kVA/kW derating
Phasing Balance
120° ±1° for balanced load; 120° ±1.5° for 100% unbalanced load
Frequency Regulation
±0.05% single module; ±0.25% paralleled modules
Load Power Factor Range
0.7 lagging to 0.8 leading
Overload
125% of full load for 10 minutes; 150% for 30 seconds, with true sinusoidal waveform
ENVIRONMENTAL
Operating Temperature
UPS: 32° to 104°F (0-40°C); Battery: 68° to 86°F (20-30°C)
Non-Operating Temperature
-4° to 158°F (-20° to 70°C)
Relative Humidity
0-95% non-condensing
Operating Altitude
Up to 3,250 ft. (1,000m) without derating
Acoustical Noise (full load)
250kVA/300KVA/400KVA
<74dB at 80-104°F (27-40°C) ambient;
600KVA/800KVA
<76dB at 80-104°F (27-40°C) ambient;
STANDARDS
General and safety requirements for UPS used in operator access areas EN62040-1/IEC62040-1
EMC requirements for UPS
EN62040-2/IEC62040-2/AS62040-2 (Category C3)
Method of specifying the performance and test requirements of UPS
EN62040-3/IEC62040-3/AS62040-3 (VFI SS 111)
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Site Planning Data - 250-800kVA, 50/60Hz, 400VAC
Site Planning Data - 250-800kVA, 50/60Hz, 400VAC
UPS Rating
AC Input
Voltage
kVA
kW
Input
Nom.
250
225
400
Current (A)
Output
Nom. Nom. Max.
400
343
381
Battery
Rec.
OCPD
630
AC Output
Battery
Current (A)
Max.
Disconnect
Nom.
Rating
VDC Discharge
Nom. OCPD
480
628
630*2
379
300
400
400
458
503
630
480
829
630*2
455
630
400
360
400
400
549
610
630
480
995
630*2
606
630
600
600
400
400
916
1006
1250
480
1658
1250
910
1250
480
1990
1250
1212
1250
720
400
400
1098
1220
1250
Dimensions
WxDxH
in. (mm)
630
300
800
Mechanical Data
900 x 1200 x 1900
900 x 2400 x 1900
Heat Dissipation Cooling Airflow
Weight
lb. (kg)
BTU/hr (kWH)
CFM (m3/hr)
800
11.3
6609
850
13.5
6609
900
18
6609
1850
27
13218
1950
36
13218
See Notes for Table (below):
—
Notes for Table
Additional Notes
1.
• If site configuration includes a backup emergency generator, it is recommended
that the engine generator set be properly sized and equipped for a UPS
application
Nominal (Nom) current is based on full rated output load at nominal input
voltage.
2. Maximum (Max) current is short duration for battery recharge conditions.
3. UPS input cables must be run in separate conduit from output cables.
4. Nominal battery voltage is shown at 2.0 volts/cell
5. OCPD = Over current Protection Device. Recommended AC input and AC
output over current protection represents 125% of nominal full load current
(continuous) plus 100% of recharge current (non-continuous) per NEC 215.
6. Minimum-sized grounding conductors to be per NEC 250-122. Parity-sized
ground conductors are recommended.
7. Wiring requirements: AC Input: 3-phase, 4-wire, plus ground
AC Output: 3-phase, 4-wire, plus ground
8. All wiring is to be in accordance with national and local electric codes.
9. Top or bottom cable entry through removable access plates. Punch plate to
suit conduit size, then replace.
10. Control wiring and power wiring must be run in separate conduit.
11. Dimensions and weights in table do not include external battery cabinet.
• If site configuration requires an external isolated maintenance bypass circuit, it
should be noted that utility AC input might not be in phase with the UPS AC output.
Consult an Emerson Network Power sales representative or applications
engineer.
© 2013 by Emerson Network Power CO., Ltd
All rights reserved throughout the world.
Specifications subject to change without notice.
Emerson Network Power CO., Ltd
Address: No.1 Kefa Rd., Science & Industry Park, Nanshan District 518057,
Shenzhen China
Please contact to local Emerson network power representative for
any further details .
Web site: www.emersonnetworkpower.com.cn
E-mail: overseas.support@emerson.com
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