Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual page 58

Connecting
4.2 Protective conductor connection and potential equalization
Figure 4-2
The protective conductor connections must be dimensioned as follows:
Table 4-1
Line supply cable in mm²
Up to 16 mm²
From 16 mm² to 35 mm²
From 35 mm²
For materials other than copper, the cross-section should be increased so that as a minimum,
the same conductivity is attained.
58
Protective conductor connection, cabinet with mounting plate / equipotential bonding
surface
Conductor cross-section for copper protective connections
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
Copper protective connections in mm²
The same as the line supply cable
16 mm²
0.5 x line supply cable
SIMOTION D4x5-2