Input Rectifier; Rectifier Input Power - Liebert NX User Manual

40-200kva, 480v, 60hz
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Table 8
UPS terminal (continued)
Battery
Nominal
Unit
Discharge
Rating
Current
40
82 at 480VDC
60
122 at 480VDC
80
163 at 480VDC
100
204 at 480VDC
120
244 at 480VDC
160
367 at 480VDC
200
408 at 480VDC
1. Nominal (Nom) current is based on full rated output load.
2. Maximum (Max) current (125% of nominal) is short duration for battery recharge conditions.
3. UPS input and bypass cables must be run in separate conduit from output cables.
4. Nominal battery voltage is shown at 2.0 volts/cell per NEC 480-2.
5. OCPD = Overcurrent Protection Device. Recommended AC input and AC output overcurrent protection represents 125% of nominal full
load current (continuous) per NEC 215.
6. Minimum-sized grounding conductors to be per NEC 250-122. Parity-sized ground conductors are recommended. References are per
NEC 1999.
7. Wiring requirements:
a. AC Input: 3-phase, 3-wire, plus ground.
b. AC Output: 3-phase, 3-wire, plus ground.
8. All wiring is to be in accordance with national and local electric codes.
6.4.1

Input Rectifier

Table 9

Rectifier input power

Rated Power kVA
Rated Voltage, VAC
Supply
Input Voltage Tolerance, VAC
(without derating)
Overload capacity of input
current
Frequency, Hz
Power Factor
Harmonic Current
See Table 8 for current ratings.
Table 10
Input voltage window with derating
Input Voltage Window
(L-L Voltage)
432VAC to 552VAC
431VAC to 384VAC
383VAC to 360VAC
359VAC to 288VAC
Maximum
OCP
Discharge
Device
Current
Rating
103 at 384VDC
125
155 at 384VDC
175
206 at 384VDC
225
258 at 384VDC
300
309 at 384VDC
350
412 at 384VDC
450
515 at 400VDC
600
40
125% Imax <I<150% Imax: 10 min; >150% load, less than 200msec
Percentage
Inverter Load,
of Nominal
90-115
80-89
75-79
60-74
Maximum
Recommended
Lug
(Thomas &
Betts Part #)
Compression
Bolt
One-Hole; 3/8"
Size
bolt
M8
54106
M8
54107
M8
54152-TB
M8
54157
M8
54167
M10
54115
M10
54115
60
80
100
480
3-phase, 3-wire plus ground
480V Nominal +15%, -20% without derating
100% Imax <I<125% Imax: 60 min
57-66
> 0.99 at full load; >0.98 at half load
Less than 3% at full rated UPS output load
Charger Load,
Percentage
Percentage
100%
100%
100%
30%
100%
0%
80%
0%
38
UPS Specifications
120
160
200
®
Liebert
NX

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