Siemens SENTRON ATC6500 - Page 105

Connection
7.3 Connection of Siemens SENTRON switching devices
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
103
Mechanical interlocking combinations for 3VA51 – 3VA52, 3VA61 – 3VA64
Note:
Bowden cable systems cannot be used.
You can find more information on interlocking in the Manual "3VA Molded Case Circuit
Breakers" (https://support.industry.siemens.com/cs/ww/en/view/90318775
).
Mechanical interlocking combinations for 3VA27, 3WL10 and 3WL FS I-III
The 3VA27 molded case circuit breakers and the 3WL10, 3WL air circuit breakers FSI-III can
be interlocked as described below:
Mechanical interlocking combinations
3VA27 (1600A)
3WL10 (1250A)
3WL FS I
3WL FS II
3WL FS III
3VA27
X
X
X
X
X
3WL10
X X X X X
3WL FS I
X
X
X
X
X
3WL FS II
X
X
X
X
X
3WL FS III
X
X
X
X
X
Note:
Apart from the possibility of interlocking 2 ACBs / MCCBs mechanically via a Bowden cable
system, there is the option of interlocking 3 ACBs of the type 3WL FS I-III.