3 Installation
3.4 Electrical Installation
DC1 Frequency Inverter 10/12 MN04020003Z-EN www.eaton.com 69
Figure 40: Four-core, screened motor supply cable
a Cu shield braid
b PVC outer casing
c Drain wire (copper strands)
d PVC core insulation, 3 x black, 1 x green–yellow
e Textile and PVC fillers
If there are additional subassemblies in a motor feeder (such as motor con-
tactors, overload relays, motor reactor, sinusoidal filters or terminals), the
shielding of the motor cable can be interrupted close to these subassemblies
and connected to the mounting plate (PES) with a large area connection.
Free or non-screened connection cables should not be any longer than about
300 mm.
3.4.1.3 Arrangement and terminal capacity
The arrangement and size of the connection terminals depend on the size of
the power section (FS1, FS2, and FS3 sizes).
The cross-sections to be used in the connections and the tightening torques
for screws are listed in the following.
Table 9: Cross-sectional areas and tightening torques
M3 for FS1 to FS3
PH2
1 Nm
(9 lb-in)
Size mm
2
AWG MM in N/m MM
FS1, FS2, FS3 0.2 - 2.5 24 - 12 8 0.31 0.5 0.6 x 3.5
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