Liebert 50 and 60 Hz User Manual page 22

Table 3 UPS Module Power Wiring Termination - Factory Supplied
Connection Type / Wire Size Range
UPS Module
Rating
kVA
12 - 24
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
Bolt Shaft Size
Inches
1/4
5/16
3/8
1/2
Terminal Block Compression Lugs
UPS Module
Rating
kVA
12 - 24
12 - 24
16 Installation
AC Input Battery
Compression Studs
lug 3/8 - 16 x 2
#14 to #2/0 Lugs Required
Lb-in
70
132
229
476
Wiring
Control
Power
AC Output
Compression Compression
lug
#14 to #2/0
Grade 2
Standard
N-m
8.0
15
26
54
Wire Size or
Range
#22 - #14
#6 - 350 MCM
Neutral Ground
Copper Busbar
lug 3.75 x 3.75 x
#14 to #2/0 0.25
Electrical Connections
with Belleville Washers
Lb-in N-m
46 5.2
60 6.8
95 10.7
256 28.9
Lb-in N-m
3.5 to 5.3 0.4 to 0.6
50 5.6