Specifications
27
Table 7 Liebert NXL Maintenance Bypass Cabinet current ratings—System Input
UPS Rating Voltage (VAC) System Input
kVA kW Input Bypass Output
Nominal
Current
10 Minute
Overload
External Breaker
Trip,
Amps
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 8 Liebert NXL Maintenance Bypass Cabinet current ratings—System Output
UPS Rating Voltage, VAC System Output
kVA kW Input Bypass Output
Nominal
Current
10 Minute
Overload
External Breaker
Trip,
Amps
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 9 Recommended conduit and cable sizes—Maintenance Bypass Input
UPS Rating System Input Voltage (VAC)
Maintenance Bypass Input
Nominal Selection Alternate Selection
Top Cable Entry
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry
Wire & Conduit
Ph, N, G THW / RNC
Top Cable Entry
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry
Wire & Conduit
Ph, N, G THW / RNCkVA kW Rectifier Bypass
Maint
Byp Output
250 225 480 480 480 480
(2) 3C 3-250kcmil,
2-250kcmil, #1/0AWG
(2) 3C 3-250kcmil,
2-250kcmil, #1/0AWG
(3) 2C 3-#2/0AWG,
2-#2/0AWG, #1/0AWG
(3) 2.5C 3-#2/0AWG,
2-#2/0AWG, #1/0AWG
300 270 480 480 480 480
(2) 3.5C 3-350kcmil,
2-350kcmil, #1/0AWG
(2) 3.5C 3-350kcmil,
2-350kcmil, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#4/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#4/0AWG, #1/0AWG
400 360 480 480 480 480
(2) 4C 3-500kcmil,
2-500kcmil, #1/0AWG
(2) 4C 3-500kcmil,
2-500kcmil, #1/0AWG
(3) 3C 3-250kcmil,
2-250kcmil, #1/0AWG
(3) 3C 3-250kcmil,
2-250kcmil, #1/0AWG
500 450 480 480 480 480
(3) 3.5C 3-500kcmil,
2-250kcmil , #1/0AWG
(3) 4C 3-500kcmil,
2-250kcmil , #1/0AWG
(4) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(4) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Table 10 Recommended conduit and cable sizes—Rectifier Input (1-Input System)
UPS Rating System Input Voltage (VAC)
Rectifier Input (1-Input System)
Nominal Selection Alternate Selection
kVA kW Rectifier Bypass
Maint
Byp Output
Top Cable Entry
Wire & Conduit
Ph, N, G, THW / FMC
Bottom Cable Entry
Wire & Conduit
Ph, N, G THW / RNC
Top Cable Entry
Wire & Conduit
Ph, N, G THW / FMC
Bottom Cable Entry
Wire & Conduit
Ph, N, G THW / RNC
250 225 480 480 480 480
(2) 2.5C 3-250kcmil,
#1/0AWG
(2) 2.5C 3-250kcmil,
#1/0AWG
(3) 2C 3-#2/0AWG,
#1/0AWG
(3) 2C 3-#2/0AWG,
#1/0AWG
300 270 480 480 480 480
(2) 3C 3-350kcmil,
#1/0AWG
(2) 3C 3-350kcmil,
#1/0AWG
(3) 2.5C 3-#4/0AWG,
#1/0AWG
(3) 2.5C 3-#4/0AWG,
#1/0AWG
400 360 480 480 480 480
(2) 3C 3-500kcmil,
#1/0AWG
(2) 3.5C 3-500kcmil,
#1/0AWG
(3) 2.5C 3-250kcmil,
#1/0AWG
(3) 2.5C 3-250kcmil,
#1/0AWG
500 450 480 480 480 480
(3) 3C 3-500kcmil,
#2/0AWG
(3) 3.5C 3-500kcmil,
#2/0AWG
(4) 2.5C 3-250kcmil,
#2/0AWG
(4) 3C 3-250kcmil,
#2/0AWG
