Siemens SENTRON Manual page 41

With network/network applications, any arrangement of the connection can be selected.
With the 3KC8 transfer switching equipment, prioritization of the source can be implemented
via the corresponding inputs. For information, see the section titled Functions of the control
inputs for network / generator application (Page 119).
Connecting the 3KC8 transfer switching equipment
Note
Before you connect the 3KC8 transfer switching equipment to the power supply systems,
you must attach the corresponding accessories to make the electronic module functional.
The required accessories depend on the current rating and the network type. Observe the
information in the section titled Connecting the inputs and outputs of the electronic module
(3KC8 only) (Page 89) before connecting the transfer switching equipment to the power
supply systems.
Figure 6-9
Manual, 08/2017, L1V30368969104A-02
Line-side connection of the main circuit with the 3KC8 transfer switching equipment
Connection
6.2 Connecting the main circuit
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