Auxiliary Switches - Siemens SENTRON Manual

9.13

Auxiliary switches

The auxiliary switches are optionally available for current ratings 250 A to 1600 A. Only 2
auxiliary switches can be installed per transfer switching equipment.
For current ratings from 2000 A to 3200 A, the auxiliary switches are already included and
mounted on the transfer switching equipment.
One leading CO contact per auxiliary switch is included for position I and II.
The section titled Auxiliary switch of the transfer switching equipment (Page 81) describes
the auxiliary switches and their installation in more detail.
Figure 9-25
Current rating
250 A ... 630 A
800 A ... 3200 A
Manual, 08/2017, L1V30368969104A-02
Auxiliary switches 3KC9803-1 (left) and 3KC9803-2 (right)
9.13 Auxiliary switches
Product number
3KC9803-1
3KC9803-2
Accessories
163