Grounding Measures - Siemens SIMATIC NET 12M Operating Instructions Manual

Installation

2.3 Grounding measures

2.3 Grounding measures
If the 12M bus terminal is mounted on a DIN rail, the shield clamp makes largearea contact with
the rail via an internal spring. To connect the cable shield with local ground, a connection
between the DIN rail to local earth is adequate (this should be kept as short as possible).
①
②
Figure 2-2
Note
The grounding bar and local ground must be connected together with Cu wire with an adequate
cross-sectional area over the shortest distance possible.
18
Grounding bar
Shield clamp rail
Ways of installing and grounding the 12M bus terminal
Operating Instructions, 06/2022, C79000-G8976-C333-02
12M bus terminal