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International cable and fuse sizes—380 Vac to 440 Vac ratings
Amp
Frame size
suffix
FR1
3D3
4D3
5D6
7D6
9D0
012
FR2
016
023
031
FR3
038
046
061
FR4
072
087
105
FR5
140
170
205
FR6
261
310
Notes:
-
Line and motor cable size is selected according to IEC 60364-5-52:2009 Table B.52.4 for copper conductor
with PVC insulation with a wiring condition of ambient temperature 30 °C in air and an installation method of
"B2" (cables in conduit and cable trunking systems). For other wiring conditions, please refer to the standard
of IEC 60364-5-52:2009 for suitable cable sizes.
-
Earthing conductor size is determined by the cross-sectional area of phase conductors according to
IEC/EN 61800-5-1:2007 Table 5. So, if phase conductor size is changed, earthing conductor size should
also be changed accordingly.
-
If power cubes or bypass are used, a Class gG/gL fuse is recommended.
Current
400 V input
(VT/I
)
current
L
(VT/I
)
at 40 °C
L
3.1
3.3
4
4.3
5.2
5.6
7.1
7.6
8.4
9
11.2
12
15
16
21.5
23
29
31
35.2
38
42.6
46
55.7
61
65.7
72
79.4
87
97
105
129
140
157
170
189
205
246.2
261
292.4
310
Fuse
rating
Mains and motor
(gG/gL)
@
cable Cu (mm
6
3*1.5+1.5
6
3*1.5+1.5
10
3*1.5+1.5
16
3*1.5+1.5
16
3*1.5+1.5
16
3*1.5+1.5
20
3*4+4
25
3*4+4
32
3*6+6
40
3*16+16
50
3*16+16
63
3*16+16
80
3*25+16
100
3*35+16
125
3*50+25
160
3*70+35
200
3*95+50
250
3*120+70
400
2*(3*70+35)
400
2*(3*95+50)
Terminal cable size
Main terminal
2
2
)
Cu (mm
)
0.2–6 solid or
0.2- 4 standard
0.5–16
0.5–16
0.5–16
16–35
16–35
16–35
16–50
16–50
16–50
50–185
50–185
50–185
2*(50–150)
2*(50–150)
Earth terminal
2
Cu (mm
)
0.75–6
0.75–6
0.75–6
0.75–6
0.75–6
0.75–6
4–16
4–16
4–16
2.5–25
2.5–25
2.5–25
6–50
6–50
6–50
10–120
10–120
10–120
35–150
35–150
25
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