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Table 7
Liebert NXL system and inverter efficiencies
UPS Rating
kVA
kW
Input
250
225
480
300
270
480
400
360
480
Table 8
Current ratings—rectifier input
UPS Rating
Voltage, VAC
kVA
kW
Input
Bypass
250
225
480
300
270
480
400
360
480
Table 9
Current ratings—bypass input
UPS Rating
kVA
kW
Input
250
225
480
300
270
480
400
360
480
Table 10
Current ratings—output
UPS Rating
kVA
kW
Input
250
225
480
300
270
480
400
360
480
Table 11
Current ratings—battery
UPS Rating
kVA
kW
250
225
300
270
400
360
Notes on Tables
1. Nominal 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 are defined in nec 100. Maximum input
current is controlled by the current limit setting which is adjustable. Values shown are for
maximum setting of 125%. Standard factory setting is 125%.
2. Recommended bypass external overcurrent protection is based on 125% overload capacity for 10
minutes.
3. All recommended external overcurrent protections are based on 80% rated breakers.
4. Nominal battery voltage is shown at 2.0 volts / cell.
Voltage, VAC
Bypass
Output
480
480
480
480
480
480
Nominal
Output
Current
480
480
313
480
480
376
480
480
500
Voltage, VAC
Bypass
Output
480
480
480
480
480
480
Voltage, VAC
Bypass
Output
480
480
480
480
480
480
Nominal
Max Battery
VDC
Current at EOD
480
480
480
System Efficiency
100%
50%
93.9
93.2
94.0
93.3
94.2
93.4
External
Maximum
100% Breaker
Current
Trip, Amps
392
400
469
500
625
700
Nominal
10 Minute
Current
Overload
301
376
361
451
481
601
Nominal
10 Minute
Current
Overload
301
376
361
451
481
601
External Breaker
615
737
981
25
Inverter Efficiency
100%
50%
94.8
94.1
94.9
94.2
95.1
94.4
External
80% Breaker
Trip, Amps
500
600
800
External Breaker
Trip, Amps
400
500
700
External Breaker
Trip, Amps
400
500
700
Trip, Amps
700
800
1000
Specifications
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