Liebert 50 and 60 Hz, S3 Table 3 UPS Module Power Wiring Termination - Factory Supplied, Table 4 Torque Specifications (Unless Otherwise Labeled)

16 Installation
Table 3 UPS Module Power Wiring Termination - Factory Supplied
Connection Type / Wire Size Range
UPS Module
Rating
kVA AC Input Battery AC Output Neutral Ground
12 - 24 Compression
lug
#14 to #2/0
Studs
3/8 - 16 x 2
Lugs Required
Compression
lug
#14 to #2/0
Compression
lug
#14 to #2/0
Copper Busbar
3.75 x 3.75 x
0.25
Use factory supplied connections for terminations where they are provided. Refer to Figure19 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
Bolt Shaft Size
Inches
Grade 2
Standard Electrical Connections with Belleville Washers
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
Rating
kVA Wiring Wire Size or
Range Lb-in N-m
12 - 24 Control #22 - #14 3.5 to 5.3 0.4 to 0.6
12 - 24 Power #6 - 350 MCM 50 5.6