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Table 42 Cable size tightening torque at Liebert
®
NX
™
100kVA UPS terminals
Bus Type
Cable Size
(Copper Wire Only)
Torque to Tighten
Terminal Bus & Lug Body
Main Input
(Single Input)
4/0 10 N-m
Main Input
(Dual Input)
4/0 10 N-m
Bypass Input
(Dual Input)
2/0 10 N-m
Output 2/0 10 N-m
Table 43 Cable size tightening torque at Liebert NX 120kVA UPS terminals
Bus Type
Cable Size
(Copper Wire Only)
Torque to Tighten
Terminal Bus & Lug Body
Main Input
(Single Input)
250 10 N-m
Main Input
(Dual Input)
250 10 N-m
Bypass Input
(Dual Input)
4/0 10 N-m
Output 4/0 10 N-m
Table 44 Cable size tightening torque at Liebert NX 160kVA UPS terminals
Bus Type
Cable Size
(Copper Wire Only)
Torque to Tighten
Terminal Bus & Lug Body
Main Input
(Single Input)
2-3/0 26 N-m
Main Input
(Dual Input)
2-3/0 26 N-m
Bypass Input
(Dual Input)
2-3/0 26 N-m
Output 2-3/0 26 N-m
Table 45 Cable size tightening torque at Liebert NX 200kVA UPS terminals
Bus Type
Cable Size
(Copper Wire Only)
Torque to Tighten
Terminal Bus & Lug Body
Main Input
(Single Input)
2-4/0 26 N-m
Main Input
(Dual Input)
2-4/0 26 N-m
Bypass Input
(Dual Input)
2-4/0 26 N-m
Output 2-4/0 26 N-m
Table 46 Cable size tightening torque at Liebert NX 480V Battery Cabinet DC input bus terminals
Cabinet
Rating
Cable Size
(Copper Wire Only)
Torque to Tighten
Terminal Bus and Lug Body
225A 4/0AWG 15 N-m
350A 400kcmil 15 N-m
600A 2-350kcmil 26 N-m
All control wiring and power wiring must be 600V rated wire.