Siemens SIRIUS 3RT - Wiring Kit for Contactor Assemblies for Star-Delta (Wye-Delta) Start (Sizes S6 to S12); Description

Accessories
9.29 Wiring kit for contactor assemblies for star-delta (wye-delta) start (sizes S6 to S12).
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
427
9.29
Wiring kit for contactor assemblies for star-delta (wye-delta) start
(sizes S6 to S12).
9.29.1
Description
The contactor assemblies for star-delta (wye-delta) start are available as kits for self-
assembly.
The same accessories as for the basic units of the corresponding size can be used.
The kit for contactor assemblies for star-delta (wye-delta) start contains the following:
● Neutral bridges
● Wiring module on the bottom (wiring module on the top is not included in the scope of
supply. A double infeed between the line contactor and the delta contactor is
recommended.)
Article numbers:
● S6-S6-S6: 3RA1953-2B
● S6-S6-S6: 3RA1953-2N
● S10-S10-S10: 3RA1963-2B
● S12-S12-S12: 3RA1973-2B
The following accessories for the basic units can also be used for the contactor assemblies
for star-delta (wye-delta) starting:
● Auxiliary switch blocks (on the front, on the side)
● Surge suppressors
● Solid-state time-delay auxiliary switch blocks with star-delta (wye-delta) function (timing
relay)
In addition, special accessories are available for the contactor assemblies for star-delta
(wye-delta) start:
● Neutral bridges (parallel connectors)
– S6 (article number: 3RT1956-4BA31)
– S10, S12 (article number: 3RT1966-4BA31)
● Mechanical connector (article number: 3RA1932-2D)