International Cable and Fuse Sizes—380 Vac to 440 Vac Ratings
400V Input
Frame
Amp
Current
Size
Suffix
(CT/I
)
H
FR1
2D2
2.0
3D3
3.1
4D3
4.0
5D6
5.2
7D6
7.1
9D0
8.4
FR2
012
11.2
016
14.9
023
21.4
FR3
031
28.8
038
35.3
046
42.8
FR4
061
56.7
072
66.9
087
80.9
FR5
105
97.6
140
130.1
170
158.0
FR6
205
190.6
261
4
1
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.
2
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.
3
If power cubes or bypass are used, a Class gG/gL fuse is recommended.