Siemens SENTRON ATC6500 - Connection of 3 WT8 Air Circuit Breakers; Transfer between Two 3 WT8 Air Circuit Breakers, with Electrical Interlock

Connection
7.7 Connection of 3WT8 air circuit breakers
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
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7.7 Connection of 3WT8 air circuit breakers
7.7.1 Transfer between two 3WT8 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)
Code
Description
BRK 1
3WT8 air circuit breaker for Source 1
BRK2
3WT8 air circuit breaker for Source 2
S2
Auxiliary switch (for electrical interlocking)
S11
Auxiliary switch (status)
S1
Alarm auxiliary switch (trip)
F1
Auxiliary release (shunt trip) F1
Y1
Closing coil Y1
M
Motor operator
Note
IEC regulations
According to IEC regulations, the fusible element must be connected via a cable compliant
wit
h IEC 61439-1 which is protected against ground faults and short circuits. To this end,
please observe the applicable national standards for electr
ical installations.