Danfoss iC7 Series Design Manual page 42

Design Guide | iC7 Series Air-cooled System Modules
Adequate fuse protection for the drive configuration must be provided on the line side and on the DC side. The power cables and
busbars must be dimensioned with sufficient thermal and mechanical strength to handle short circuits in the system. See the fuse ratings
in 10.5.1 List of Fuse Size Information.
Control
unit, AFE
DC connection
DC
2
fuses
AFE
Pre-charging
power
unit
LCL
Filter
AC
3
fuses
Mains
device
AC grid
Figure 27: DC Connections of Single Power Units
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Control
unit, INU
INU
power
circuit
unit
M
AJ389643111587en-000101 / 172F6361A