Siemens G120P Technical Manual page 34

Installing
5
Installing the Power Module
Cable cross-section of the
grounding conductors
Cable types
Cable preparation
34 | 98
Siemens
Building Technologies
● The material of the protective grounding conductor must be the same as the
material of the power cable. If this is not the case, the specific resistance of the
protective grounding conductor must not be higher than the specific resistance
of the power cables. The relevant diameter of the power cables is the diameter
of the line supply cable, and not the diameter of the motor cables.
● In the case of power cables up to 35 mm
section of at least 10 mm
● For power cables with a diameter of more than 35 mm
grounding conductor must have at least half of the size of the cross-section of
the power cable.
● If possible, use at least 16 mm
Diagram Cable type
FSA power cables
FSA motor cables
FSB motor cables
FSC power cables
FSC motor cables
Table 8: Overview of cables
No shielding dimensions are indicated for the input power cables because they
are generally unshielded cables.
1. Expose the shield around the length C in order to ensure that devices with an
EMC filter of Class B conform to EMC category C1.
2. When the cable is fed through the base plate, also expose the shield around
the length D (see sketch above, at the end of "D") and insert the cable through
the conductively connected EMC cable gland.
, the ground cable must have a cross
2
(16 mm² Al).
2
for the copper equipotential-bonding cable.
2
Dimensions
A B
10 mm 60 mm
0.39 inches 2.36
inches
10 mm 60 mm
0.39 inches 2.36
inches
10 mm 60 mm
0.39 inches 2.36
inches
10 mm 50 mm
0.39 inches 1.96
inches
10 mm 50 mm
0.39 inches 1.96
inches
, the protective
2
C D
- 90 mm
3.54 inches
10 mm 60 mm
0.39 inches 2.36 inches
- 50 mm
1.96 inches
10 mm 40 mm
0.39 inches 1.57 inches
- 70 mm
2.75 inches
A5E36496664A_d
2016-03-17