Liebert NXL 250-400 kVA, Single Module System Site Planning Data (R02/14) (SL-25510)

LIEBERT® NXL™, 250-400KVA, SINGLE-MODULE SYSTEM - SITE PLANNING DATA
Table 1
Site planning data—250-400kVA
UPS Rating
kVA
kW
AC Input/Output
Voltage, VAC
250
225
480
Input Isolation
Transformer
Rectifier AC
Input Current
Bypass/Output
AC Output Current
Nom
Max
Nom
312
389
301
250
225
575
260
326
251
250
225
600
250
312
241
300
270
480
371
464
361
300
270
575
308
386
301
300
270
600
296
369
289
400
360
480
497
621
481
400
360
575
419
524
402
400
360
600
401
502
385
See Notes below:
*
NO
—
1,4,5,7,8,9,11,12
Maximum Battery
Current at End of
Discharge (A)
Maximum Heat
Dissipation Full
Load, BTU/h (kW)
53,592 (15.7)
615
Dimensions
WxDxH, in. (mm)
Approximate Weight
Unpacked, lb. (kg)
71.8x33.5x76.8
(1823x850x1950)
3965 (1798)
53,662 (15.7)
61,890 (18.1)
730
2,3,5,7,8,9,11,12
4975 (2257)
78.5x33.5x76.8
(1993x850x1950)
64,311 (18.8)
4840 (2195)
5440 (2468)
980
74,173 (21.7)
78.5x39.4x76.8
(1993x1000x1950)
6280 (2849)
990
86,265 (25.3)
114.5x39.4x76.8 *
(2908x1000x1950)
6925 (3141)
6,8,9,11,12
—
—
—
Deduct 16.1 inches (409mm) when battery cabinets are attached.
Notes for Table 1
1.
2.
3.
4.
5.
6.
Nominal rectifier AC input current (considered continuous) is based on full
rated output load. Maximum current includes nominal input current and
maximum battery recharge current (considered noncontinuous). Continuous
and noncontinuous current limits are defined in NEC 100. Maximum input
current is controlled by current limit setting which is adjustable. Values
shown for maximum setting are 125% of nominal input current.
Nominal AC output current (considered continuous) is based on full rated
output load. Maximum current includes nominal output current and
overload current for 10 minutes.
Bypass AC input current (considered continuous) is based on full rated
output load.
Emerson recommends that feeder protection (by others) for the rectifier AC
input and the bypass AC input be provided by separate overcurrent
protection devices.
UPS output load cables must be run in separate conduit from input cables.
Power cable from module DC bus to battery should be sized for a total
maximum 2.0 volt line drop (power cable drop plus return cable drop as
measured at the module) at maximum discharge current.
7.
Grounding conductors to be sized per NEC 250-95. Neutral conductors to be
sized for full capacity—per NEC 310-16, Note 10—for systems with 4-wire
loads and 20% minimum capacity for 3-wire loads.
8.
Rectifier AC Input: 3-phase, 3-wire, plus ground
AC Output to Load: 3-phase, 3- or 4-wire, plus ground
Bypass AC Input: 3-phase, 3- or 4-wire, plus ground
Module DC Input from Battery: 2-wire (positive and negative), plus ground
9.
All wiring is to be in accordance with National and Local Electrical Codes.
10. Minimum overhead clearance is 2 ft. (0.6m) above the UPS.
11. Top or bottom cable entry through removable access plates. Cut plate to suit
conduit size.
12. Control wiring and power cables must be run in separate conduits. Control
wiring must be stranded tinned conductors.
13. 10% maximum reflected input harmonic current and 0.92 lagging input
power factor at full load.
1
Liebert® NXL™, 250-400kVA, Single-Module System - Site Planning Data
Maintenance Bypass Panel (Option)
MBB
2
MIB
3
5
AC Output
To load
UPS Module
4
5
3
Bypass
AC input
4
5
BFB
1
Rectifier
AC input
DC Bus
CB1
Battery
System
6
CB2
6
MBD
The Liebert NXL is compatible with high resistance ground systems. See your local Emerson representative for details.
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Technical Support / Service
United States
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SL-25510_REV3_02-14
2
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