Siemens SENTRON ATC6500 - Connection of 3 VA27 Motor-Driven Molded Case Circuit Breakers (IEC Only); Transfer between Two 3 VA27 Molded Case Circuit Breakers, with Electrical Interlock

Connection
7.4 Connection of 3VA molded case circuit breakers
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
115
7.4.2 Connection of 3VA27 motor-driven molded case circuit breakers (IEC only)
7.4.2.1 Transfer between two 3VA27 molded case 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
3VA molded case circuit breaker for Source 1
BRK2
3VA molded case circuit breaker for Source 2
AUX 1
Auxiliary switch (for electrical interlocking)
AUX 2
Auxiliary switch (status)
S24
Alarm auxiliary switch (trip)
ST
Shunt trip
CC
Closing coil
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 nation
al standards for electrical installations.