Product description
4.2 Device versions
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
59
3RA24 contactor assemblies for star-delta (wye-delta) start
The 3RA24 contactor assembly for star-delta (wye-delta) start consists of three 3-pole
contactors (line contactor, star contactor, and delta contactor), main circuit wiring modules,
and plug-on function modules for the control circuit wiring.
The 3RA24 contactor assembly for star-delta (wye-delta) start of sizes S00 to S3 is available
in two versions:
● Fully wired and tested with electrical and mechanical interlock.
● As a kit for customer assembly.
The fully wired 3RA24 contactor assemblies for star-delta (wye-delta) start can be ordered
with the following plug-on function modules:
● Without a communication connection.
● With communication connection (IO-Link or AS-Interface)
The fully wired 3RA24 contactor assembly for star-delta (wye-delta) start is available either
with a screw-type connection system or a spring-loaded connection system (sizes S0 and
S00).
Sizes S2 and S3 are only available with screw-type connection. In sizes S2 and S3, the
spring-loaded connection system is only available in the control circuit.
The illustrations below show the fully assembled contactor assembly for star-delta (wye-
delta) start without a communication connection, in the version with the screw-type
connection system.
3RA24 contactor assembly for star-delta (wye-delta) start, screw connection, size S00
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