It is recommended to route in separately cable racks, trays or ducts, the following cable types:
Single-wire signal or data cables with V< 60V
Single wire cable with 60V<V< 230V
Input power cables with low level of interferences 230V<V<1000V
Output motor power cables and Dynamic brake DC cables with high level of interferences
230V<V<1000V.
Medium voltage cables with V<1000V
The power cables must have sufficient current rating to prevent important wiring overheating and voltage
drops. The installer must consider the cable cross-section, cable type, routing method and the ambient
conditions to select the appropriate cable. It is only permitted the use of cooper or aluminium cables. The
maximum cable section and the available holes per phase could be found in the “Power connection
terminals” section.
6.3.1. Recommended Cable Section for 400VAC
Recommended
Cable Section
per Phase
Recommended
Cable Section
for Earth Wire
Note: Cable must be suitable for a permanent Tª >75ºC. Use 600V cables for up to 500Vac rated voltage.
For 525Vac and 690Vac phase to phase rated equipment use 1kV cables. However, this is only a
recommendation. You must follow the local regulation.