Siemens SIRIUS 3RT Manual page 396

Accessories
9.28 Assembly kit for contactor assemblies for star-delta (wye-delta) start (sizes S00 to S3)
The mechanical interlock and the connecting clips are mounted and the function modules
are plugged in in the same way as described for size S0 with screw-type connection. See the
chapter "Mounting S0 (Page 399)" in this regard.
①
② ③
/
④
⑤ ⑥
/
Electrical interlocking is available only if no 3RA28 is used.
Note
The function modules are assembled as previously described.
396
Break the wiring module apart.
The wiring modules for connecting the control current paths are not needed to build a
contactor assembly for star-delta (wye-delta) start with function modules.
Attach the wiring module for connecting the main current paths to contactors Q11 and Q13
from above and below.
Attach the wiring module for the neutral bridge to contactor Q12 from above.
Screw the wiring modules tight with a screwdriver.
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006