CERUS CI-007-P2 - Wire Sizes and Terminal Lugs

Chapter 3 – Installation & Wiring
3-8
3.2.7 Wire sizes and terminal lugs
Refer to below table for recommended wires sizes, terminal lugs, and screws for VFD power and motor
wiring.
VFD capacity
HP (kW)
Screw
Size Metric
Screw Torque
Wire size
R(L1), S(L2), T(L3) U, V, W
kgf · cm lb · in mm
2
AWG
or
kcmil
mm
2
AWG
or
kcmil
230VAC
7.5HP (5.5kW)
M4 7.1 ~ 12.2 6.2~10.6 5.5 10 5.5 10
10HP
(7.5kW)
M5
24.5 ~ 31.8 21.2~27.6
8 8 8 8
15HP
(11kW)
M5
14 6 14 6
20HP (15kW)
M6
30.6 ~ 38.2 26.6~33.2
22 4 22 4
25HP (18.5kW)
M6 38 2
38 2
30HP
(22kW)
M8
61.2 ~ 91.8 53.1~79.7
38 2 38 2
40HP (30kW)
M8 60 1/0 60 1/0
460VAC
7.5HP
(5.5kW)
M4 7.1 ~ 12.2 6.2~10.6
3.5 12 3.5 12
10HP (7.5kW)
15HP (11 kW)
5.5 10
5.5 10
20HP
(15kW)
M6 30.6~38.2 26.6~33.2
8 8 8 8
25HP (18.5kW)
14 6 14 6
30~40HP
(22~30kW)
M8
61.2~91.8 53.1~79.7 22 4 22 4
50~75HP
(37~55kW)
67.3~87.5 58.4~75.9 38 2 38 2
100~125HP (75~90kW)
M10 89.7~122.0 77.9~105.9 60 1/0 60 1/0
150~200HP
(110~132kW)
M12
182.4~
215.0
158.3~
186.6
100 4/0 100 4/0
250HP
(160kW)
150 300 150 300
350HP
(220kW)
200 400 200 400
400HP (280kW)
250 500 250 500
500HP
(315kW)
325 700 325 700
600HP (375kW)
2x200 2x400 2x200 2x400
700HP
(450kW)
2x250 2x500 2x250 2x500
600VAC
7.5HP (5.5kW)
M4 7.1 ~ 12.2 6.2~10.6
3.5 12 3.5 12
10HP (7.5kW)
15HP (11kW)
5.5 10 5.5 10
20HP (15kW)
M6 30.6~38.2 26.6~33.2
8 8 8 8
25HP (18.5kW)
14 6 14 6
30~40HP (22~30kW)
M8 61.2~91.8 53.1~79.7
22 4 22 4
50~75HP (37~55kW)
38 2 38 2
100~125HP (75~90kW)
M10 89.7~122 77.9~105.9 60 1/0 60 1/0
150~200HP
(110~132kW)
M12 182.4~215 158.3~186.6
100 4/0 100 4/0
Notes: Apply the rated torque to terminal screws providing proper wire connection and protecting the thread from
damage. Loose screws can cause VFD malfunction or damage. Use copper wires with 600V, 75°C ratings. For
10~15HP (7.5~11kW) 230V type VFDs the power and motor terminals are only for use with insulated ring type
connectors.