Emc-Compliant Design - Siemens SINAMICS S120 Equipment Manual

4.4

EMC-compliant design

The following section provides some basic information and guidelines that will help you
comply with the EMC and CE guidelines.
Cabinet installation
● Connect painted or anodized metal components using toothed self-locking screws or
● Use unpainted, de-oiled mounting plates.
● Establish a central connection between ground and the protective conductor system
● The PE conductor cross section must be selected in accordance with EN 60204-1,
Table 4- 2
Outer conductor cross section
Up to 16 mm
16 mm
From 35 mm
Shield gaps
● Bridge shield gaps (at terminals, circuit breakers, contactors, and so on) with minimum
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
remove the insulating layer.
(ground).
EN 60439-1, IEC 60364 (see catalog D21.3).
Conductor cross sections
2
to 35 mm
2 2
2
impedance and the greatest possible surface area. The shield buses must be mounted
onto the base plates using metal or copper bolts.
Figure 4-4 Bridging shield gaps
Minimum cross section of the external PE conductor
At least outer conductor cross section
16 mm
2
At least half of the outer conductor cross section
Electrical installation
4.4 EMC-compliant design
53