Emerson UPS Systems Recommended conduit and cable sizes-Maintenance Bypass Input

Specifications

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

Table 10 Recommended conduit and cable sizes—Rectifier Input (1-Input System)

							Rectifier Input (1-Input System)
UPS Rating		System Input Voltage (VAC)				Nominal Selection		Alternate Selection
				Maint		Top Cable Entry	Bottom Cable Entry	Top Cable Entry	Bottom Cable Entry
kVA	kW	Rectifier	Bypass		Output	Wire & Conduit	Wire & Conduit	Wire & Conduit	Wire & Conduit
				Byp		Ph, N, G, THW / FMC	Ph, N, G THW / RNC	Ph, N, G THW / FMC	Ph, N, G THW / RNC
250	225	480	480	480	480	(2) 2.5C 3-250kcmil,	(2) 2.5C 3-250kcmil,	(3) 2C 3-#2/0AWG,	(3) 2C 3-#2/0AWG,
						#1/0AWG	#1/0AWG	#1/0AWG	#1/0AWG
300	270	480	480	480	480	(2) 3C 3-350kcmil,	(2) 3C 3-350kcmil,	(3) 2.5C 3-#4/0AWG,	(3) 2.5C 3-#4/0AWG,
						#1/0AWG	#1/0AWG	#1/0AWG	#1/0AWG
400	360	480	480	480	480	(2) 3C 3-500kcmil,	(2) 3.5C 3-500kcmil,	(3) 2.5C 3-250kcmil,	(3) 2.5C 3-250kcmil,
						#1/0AWG	#1/0AWG	#1/0AWG	#1/0AWG
500	450	480	480	480	480	(3) 3C 3-500kcmil,	(3) 3.5C 3-500kcmil,	(4) 2.5C 3-250kcmil,	(4) 3C 3-250kcmil,
						#2/0AWG	#2/0AWG	#2/0AWG	#2/0AWG

27