Liebert NXL 사용자 설명서
Electrical Installation
6
Top Cable Entry
When making the power connections, the recommended order of pulling and installing cables
is to start from the top connections to the bottom connections. The cables must be routed
around the fault braces (see Detail in Figure 3). This is to prevent the cables from contacting
other busbars. The recommended conduit layout is shown in Figure 1.
Bottom Cable Entry
When making the power connections, the recommended order of pulling and installing cables
is to start from the bottom connections to the top connections. The cables must be routed
around the fault braces (see Detail in Figure 3. This is to prevent the cables from contacting
other busbars. The recommended conduit layout is shown in Figure 1.
5. Close and secure the interior and exterior doors.
NOTE
For a Single Input configuration, linking busbars must be installed between the bypass and
For a Single Input configuration, linking busbars must be installed between the bypass and
the rectifier input.
!
WARNING
Risk of electrical shock. Can cause injury or death.
If the load equipment will not be ready to accept power on the arrival of the commissioning
If the load equipment will not be ready to accept power on the arrival of the commissioning
engineer, ensure that the system output cables are safely isolated at their termination.
!
WARNING
Risk of electrical shock. Can cause injury or death.
When connecting the cables between the battery extremities to the circuit breaker always
When connecting the cables between the battery extremities to the circuit breaker always
connect the circuit breaker end of the cable first.
NOTE
If fault bracing brackets were removed during installation, they MUST be replaced.
If fault bracing brackets were removed during installation, they MUST be replaced.
Table 1
Current ratings—rectifier input
UPS Rating
Voltage, VAC
Nominal
Current
Maximum
Current
External
100% Breaker
Trip, Amps
External
80% Breaker
Trip, Amps
kVA
kW
Input
Bypass
Output
250
225
480
480
480
313
392
400
500
300
270
480
480
480
376
469
500
600
400
360
480
480
480
500
625
700
800
Table 2
Current ratings—bypass input
UPS Rating
Voltage, VAC
Nominal
Current
10 Minute
Overload
External Breaker
Trip, Amps
kVA
kW
Input
Bypass
Output
250
225
480
480
480
301
376
400
300
270
480
480
480
361
451
500
400
360
480
480
480
481
601
700
Table 3
Current ratings—output
UPS Rating
Voltage, VAC
Nominal
Current
10 Minute
Overload
External Breaker
Trip, Amps
kVA
kW
Input
Bypass
Output
250
225
480
480
480
301
376
400
300
270
480
480
480
361
451
500
400
360
480
480
480
481
601
700