Siemens SENTRON ATC6500 - Transfer between Three 3 WL Air Circuit Breakers FS I-III, with Electrical Interlock

Connection
7.6 Connection of 3WL air circuit breakers, FS I - III
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
129
7.6.2 Transfer between three 3WL air circuit breakers FS I-III, with electrical interlock
The following diagram applies for the applications 2S-1T-PL and 2S-NPL:
You can find more information on the applications in chapter Load management with the
ATC6500 (Page 20)
Code
Description
BRK 1
3WL air circuit breaker for Source 1
BRK2
3WL air circuit breaker for Source 2
TB
3WL air circuit breaker as tie breaker
S3 (NC)
Auxiliary switch (for electrical interlocking)
S3 (NO)
Auxiliary switch (status)
S24
Alarm auxiliary switch (trip)
F1
Auxiliary release (shunt trip) F1
Y1
Closing coil Y1
M
Motor operator
Note
IEC regulations
Acco
rding 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 installations.