Siemens SENTRON, Manual

Page: 49 / 224

Connection
6.2 Connecting the main circuit
Manual, 08/2017, L1V30368969104A-02
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6.2.5 Connection of transfer switching equipment for current ratings 2000 A to 3200 A
The connection of current ratings 2000 A to 3200 A to the main circuit is described in the
following section.
So that you can connect the 3KC4 and 3KC8 transfer switching equipment to the power
supply systems properly, you must first mount the copper bar connection kit accessory. The
steps listed below describe the mounting of the copper bar connection kit and connection to
the power supply systems.
6.2.5.1 Copper bar connection kit
For current ratings 2000 A to 3200 A, the copper bar connection kit may be mounted on the
line or load side, depending on the connection type. This is not fully included with the
transfer switch and must be ordered separately.
The copper bar connection kit is made up of 5 separately available parts. The different
components of the copper bar connection kit enable a host of connection options.
Overview of the copper bar connection kit
Figure 6-16 Connection, part A, (3KC9811-0, included in the scope of supply for current rating
3200 A)
Figure 6-17 Bolt set, part B, 45 mm (3KC9811-1)
Figure 6-18 Bolt set, part B, 35 mm short length (3KC9811-2)