Vertiv Liebert NXL 1100, Installation Manual

Page: 68 / 73

Specifications
Vertiv
| Large System, 3-Phase UPS Battery System Installation Manual 61
Table 23 Recommended lug sizes
Cable
Size
T&B Copper
One Hole
T&B Copper
Two Hole
T&B Aluminum
One Hole
T&B Aluminum
Two Hole
#8AWG 54930BE 54850BE 60104-TB —
#6AWG 54905BE 256-30695-868 60109-TB —
#4AWG 54906BE 256-30695-733 60114-TB —
#2-3AWG 54942BE 54811BE 60120 —
#1AWG 54947BE 54857BE 60126 —
#1/0AWG 54950BE 256-30695-593 60132 —
#2/0AWG 54951BE 54862BE 60138 60238
#3/0AWG 54965BE 54864BE 60144 60244
#4/0AWG 54970BE 54866BE 60150 60250
250kcmil 54913BE 54868BE 60156 60256
300kcmil 54914BE 54870BE 60162 60262
350kcmil 54915BE 54872BE 60165 60267
400kcmil 54916BE 54874BE 60168 60269
500kcmil 54918BE 54876BE 60171 60273
600kcmil 54920BE 54878BE 60176 60275
750kcmil 54922BE 54880BE 60178 60277
Table 24 Torque specifications, unless otherwise labeled
Nut and Bolt Combinations
Bolt Shaft Size
Grade 2 Standard
lb-in (Nm)
Electrical Connections
with Belleville Washers
lb-in (Nm)
1/4 (M6) 53 (6.0) 46 (5.2)
5/16 (M8) 107 (12) 60 (6.8)
3/8 (M10) 192 (22) 95 (11)
1/2 (M12) 428 (48) 256 (29)
Circuit Breakers with Compression Lugs (For Power Wiring)
Current Rating lb-in (Nm) —
400 - 1200 Amps 300 (34) —
Circuit Breakers with Compression Lugs (For Control Wiring)
AWG Wire Size or Range lb-in (Nm) —
#22 - #14 3.5 to 5.3 (0.4 to 0.6) —