Siemens SIMATIC NET Manuel d'utilisation - Page 19

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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