International cable and fuse sizes—208 Vac to 240 Vac Ratings
Amp
Frame size
suffix
FR0
4D8
6D6
7D8
FR1
4D8
6D6
7D8
011
012
FR2
017
025
031
FR3
048
061
FR4
075
088
114
FR5
143
170
211
FR6
261
312
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.