Siemens SENTRON ATC6500 - Connection of the 3 WL air circuit breaker

Connection
7.4 Connection of 3VA molded case circuit breakers
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
119
7.4.2.3 Transfer between three 3VA27 molded case circuit breakers, without electrical interlock
The following diagram applies for the applications 2S-1T-SI and 2S-1T-AI:
You can find more information on the applications in chapter Load management with the
ATC6500 (Page 20)
Code
Description
BRK 1
3VA molded case circuit breaker for Source 1
BRK2
3VA molded case circuit breaker for Source 2
TB
3VA molded case circuit breaker as tie breaker
AUX 2
Auxiliary switch (status)
S24
Alarm auxiliary switch (trip)
ST
Shunt trip
CC
Closing coil
M
Motor operator
Note
IEC regulations
Accordin
g 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.