Liebert 50 and 60 Hz, S3 user manual 10.7, 28.9, #6 350 MCM

Table 3	UPS Module Power Wiring Termination - Factory Supplied
Connection Type / Wire Size Range
UPS Module
Rating		AC Input	Battery	AC Output	Neutral	Ground
kVA
12 - 24		Compression	Studs	Compression	Compression	Copper Busbar
		lug	3/8 - 16 x 2	lug	lug	3.75 x 3.75 x
		#14 to #2/0	Lugs Required	#14 to #2/0	#14 to #2/0	0.25

Use factory supplied connections for terminations where they are provided. Refer to Figure 19 for field- supplied wiring termination details. Use commercially available UL listed solderless lugs for the wire size required for your application. Connect wire to the lug using tool and procedure specified by the lug manufacturer.

Table 4	Torque Specifications (Unless Otherwise Labeled)
Nut and Bolt Combinations
			Grade 2		Electrical Connections
	Bolt Shaft Size		Standard		with Belleville Washers
	Inches	Lb-in		N-m	Lb-in	N-m
	1/4	70		8.0	46	5.2
	5/16	132		15	60	6.8
	3/8	229		26	95	10.7
	1/2	476		54	256	28.9
Terminal Block Compression Lugs
	UPS Module			Wire Size or
	Rating	Wiring			Lb-in	N-m
	kVA			Range
	12 - 24	Control		#22 - #14	3.5 to 5.3	0.4 to 0.6
	12 - 24	Power		#6 - 350 MCM	50	5.6

16 Installation