Siemens SIRIUS 3RT Manual page 432

Accessories
9.29 Wiring kit for contactor assemblies for star-delta (wye-delta) start (sizes S6 to S12).
Mounting the contactor assembly for star-delta (wye-delta) start - size S6-S6-S3
① ②
/ Mounting the contactor assembly for star-delta (wye-delta) start on a base plate.
③
Attach the lower wiring module.
④
Tighten the main terminals.
⑤
Attach the neutral bridge.
⑥
Tighten the main terminals.
432
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006