Siemens SENTRON ATC6500 - Operation; Operating modes of the ATC6500

Connection
7.7 Connection of 3WT8 air circuit breakers
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
137
7.7.3 Transfer between three 3WT8 air 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
3WT8 air circuit breaker for Source 1
BRK2
3WT8 air circuit breaker for Source 2
TB
3WT8 air circuit breaker as tie breaker
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
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.