Transfer Between Three 3Wt8 Air Circuit Breakers, Without Electrical Interlock - Siemens SENTRON ATC6500 Manual

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 installations.
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
7.7 Connection of 3WT8 air circuit breakers
Connection
137