SIEMENS
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Siemens IC 10 · 2017
Contactor Assemblies for Star-Delta (Wye-Delta) Starting
SIRIUS 3RA24 contactor assemblies for star-delta (wye-delta) starting, up to 90 kW
3
Fully wired and tested contactor assemblies for star-delta (wye-delta) starting · Size S3-S3-S2
1)
· Up to 90 kW
1)
Contactor assembly for star-delta (wye-delta) starting for customer assem-
bly in size S3-S3-S3 (not shown): The 3RA2943-2BB. assembly kit is to be
used here,
see page 3/110
.
Complete contactor assemblies for star-delta (wye-delta)
starting
see page 3/182
.
Mountable accessories (optional)
Complete contactor assembly for star-delta (wye-delta) starting
To be ordered separately
Type
Page
Individual parts
Type
Page
Q11
Q13
Q12
Single-phase infeed terminal
3RA2943-3L
3/114
Contactors, 55 kW
3RT2045
3RT2045
3RT2035
3/56, 3/64
(3 units are required)
Contactors, 75 kW
3RT2045
3RT2045
3RT2036
3/56, 3/64
Contactors, 90 kW
3RT2046
3RT2046
3RT2037
3/56, 3/64
Assembly kit S3-S3-S2
comprising:
3RA2943-2C
3/110
Two connectors for three contactors (not required for fully pre-
wired contactor assemblies for star-delta (wye-delta) starting)
Wiring modules on top and bottom (S3-S2)
for connecting the main and auxiliary circuits
and a cable set for the auxiliary circuit
Star jumper S2
Cable for connecting the A2 coil contact from the line contactor
with the A2 coil contact of the delta contactor
(not shown in the drawing)
Mechanical interlock
3RA2934-2B
3/113
Function modules for star-delta
(wye-delta) starting
3RA2816-0EW20
3/105
Base plate star-delta
(wye-delta)
3RA2942-2F
3/117
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IC01_00628
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© Siemens AG 201
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