Connection
7.6 Connection of 3WL air circuit breakers, FS I - III
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
127
7.6 Connection of 3WL air circuit breakers, FS I - III
7.6.1 Transfer between two 3WL FS I-III air circuit breakers, with electrical interlock
For the application 2S-0T the following diagram applies:
You can find more information on the applications in chapter Load management with the
ATC6500 (Page 20)
3WL air circuit breaker for Source 1
3WL air circuit breaker for Source 2
Auxiliary switch (for electrical interlocking)
Auxiliary switch (status)
Alarm auxiliary switch (trip)
Auxiliary release (shunt trip) F1
Note
IEC regulations
According to IEC regulations, the fusible element must be connected via a cable compliant
with IEC
61439-1 which is protected against ground faults and short circuits. To this end,
please observe the applicable national standards for electrical installatio
ns.
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