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.
12M bus terminal
Siemens Distributor
Operating Instructions, 07/2013, C79000-G8976-C333-01
Grounding bar
Shield clamp rail
Ways of installing and grounding the 12M bus terminal
Installation
2.3 Grounding measures
19