Siemens SENTRON 3KC0 Manual page 61

If you use the 3KC0 transfer switching equipment as a load transfer switch for switching
between two loads (in compliance with IEC 60947-3), you must mount a bridging bar on the
line side.
Bridging bar for sizes 1 and 2 with box termi-
nals, 3-pole
Bridging bar for sizes 3 and 4 with flat termi-
nals
Note
In addition to the terminal covers, you must also connect side panel covers for lateral touch
protection of the connection side at which the bridging bars are used (usually the load side)
in the case of sizes 3, 4 and 5.
Sizes and article numbers
The bridging bars are not included in the scope of supply. You can order the bridging bars as
accessories.
3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01
Bridging bar for sizes 1 and 2 with box termi-
nals, 4-pole
Bridging bar for size 5 with flat terminals
Accessories
8.4 Bridging bars
59