Mounting Size S0 - Siemens SIRIUS 3RT Manual

9.28 Assembly kit for contactor assemblies for star-delta (wye-delta) start (sizes S00 to S3)
9.28.3

Mounting size S0

The contactor assemblies for star-delta (wye-delta) start can be built from contactors with
screw connections or spring-loaded connections:
● Line contactor (Q11): Left
● Delta contactor (Q13): Center
● Star contactor (Q12): Right
This arrangement applies for all installation instructions described in this chapter.
The illustration below shows example procedures for assembling the contactor assembly for
star-delta (wye-delta) start in size S0 with screw-type connection. Instructions 1 to 6 show
how to assemble the contactors using the components supplied in the assembly kit.
Assembling the contactor assembly for star-delta (wye-delta) start with screw-type connection - size
S0
Electrical interlocking is available only if no 3RA28 is used.
①
②
③
④
⑤
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
Insert the connecting clips into the openings on contactor Q13.
Secure the mechanical interlock on the left-hand side of contactor Q12.
Connect contactors Q11 and Q13 together.
Insert the connecting clips into the openings on contactor Q12.
Connect contactors Q11/Q13 and Q12 together.
Accessories
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