Vertiv
™
|
Liebert
®
NX
™
225-600kVA Installation Manual | Rev. 8 | 07/2017
41
Table 15
Recommended conduit and cable sizes
Rectifier Input
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; # -size of phase cables per conduit; size of cable
for ground per conduit
kVA
kW
Copper Conductors
Aluminum Conductors
225
225
480
(1) 2.5C 3-500kcmil, #4AWG
(1) 2.5C 3-700kcmil, #2AWG
250
250
480
(1) 3.0C 3-600kcmil, #3AWG
(2) 2.0C 3-300kcmil, #1AWG
300
300
480
(2) 2.0C 3-250kcmil, #3AWG
(2) 2.0C 3-350kcmil, #1AWG
400
400
480
(2) 2.5C 3-500kcmil, #1AWG
(2) 2.5C 3-600kcmil, #2/0AWG
500
500
480
(2) 3.0C 3-600kcmil, #1/0AWG
(3) 2.5C 3-500kcmil, #3/0AWG
600
600
480
(3) 2.5C 3-500kcmil, #1/0AWG
(3) 2.5C 3-600kcmil, #3/0AWG
Bypass Input
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; # -size of phase cables per conduit;
size of cable for ground per conduit
kVA
kW
Copper Conductors
Aluminum Conductors
225
225
480
(1) 2.5C 3-500kcmil, #4AWG
(1) 2.5C 3-600kcmil, #2AWG
250
250
480
(1) 2.5C 3-500kcmil,#3AWG
(1) 3.0C 3-750kcmil, #1AWG
300
300
480
(2) 1.5C 3-#4/0AWG, #3AWG
(2) 2.0C 3-300kcmil, #1AWG
400
400
480
(2) 2.0C 3-350kcmil, #2AWG
(2) 2.5C 3-500kcmil, #1/0AWG
500
500
480
(2) 2.5C 3-500kcmil, #1/0AWG
(2) 3.0C 3-750kcmil, #3/0AWG
600
600
480
(2) 3.0C 3-750kcmil, #1/0AWG
(3) 2.5C 3-500kcmil, #3/0AWG
Output
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; # -size of phase cables per conduit;
size of cable for ground per conduit
kVA
kW
Copper Conductors
Aluminum Conductors
225
225
480
(1) 2.5C 3-500kcmil, #4AWG
(1) 2.5C 3-600kcmil, #2AWG
250
250
480
(1) 2.5C 3-500kcmil,#3AWG
(1) 3.0C 3-750kcmil, #1AWG
300
300
480
(2) 1.5C 3-#4/0AWG, #3AWG
(2) 2.0C 3-300kcmil, #1AWG
400
400
480
(2) 2.0C 3-350kcmil, #2AWG
(2) 2.5C 3-500kcmil, #1/0AWG
500
500
480
(2) 2.5C 3-500kcmil, #1AWG
(2) 3.0C 3-750kcmil, #3/0AWG
600
600
480
(2) 3.0C 3-750kcmil, #1AWG
(3) 2.5C 3-500kcmil, #3/0AWG
Battery (Copper Conductors Only for Battery)
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; # -size of phase cables per conduit;
size of cable for ground per conduit
kVA
kW
Copper Conductors
225
225
480
(2) 2C 2-500kcmil, #1/0AWG
250
250
480
(2) 2C 2-600kcmil, #1/0AWG
300
300
480
(2) 2.5C, 2-600kcmil, #2/0AWG
400
400
480
(3) 2.5C, 2-600kcmil, #3/0AWG
500
500
480
(3) 2.5C, 2-750kcmil, #4/0AWG
600
600
480
(5) 2.5C, 2-600kcmil; 250kcmil
1.
Recommended cable sizes are 167°F (75°C) (THW) wire at 86°F (30°C) ambient.
2.
For continuous operations not at 86°F (30°C), Vertiv recommend that the site planner choose the appropriate cable type based on the particular installation
requirements.
3.
Recommended conduit is based on FMC type conduit.