SIEMENS
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Siemens IK PI · 2015
IO-Link
Contactors and contactor assemblies
SIRIUS 3RA24 contactor assemblies for wye-delta starting
5
■
Overview
These 3RA24 contactor assemblies for wye-delta starting are
designed for standard applications.
Note:
Contactor assemblies for wye-delta starting in special applica-
tions such as very heavy starting or wye-delta starting of special
motors must be customized. Help with designing such special
applications is available from Technical Assistance.
The 3RA24 contactor assemblies for wye-delta starting can be
ordered as follows:
•
Complete, fully wired and tested, with electrical and mechan-
ical interlock
•
As individual parts for customer assembly.
A dead interval of 50 ms on reversing is already integrated in the
function module for wye-delta starting. The auxiliary contacts
integrated in the contactors (see page 5/19) are unassigned.
■
Selection and ordering data
Fully-wired and tested contactor assemblies
For online configurator see
www.siemens.com/sirius/configurators
.
1)
Guide value for 4-pole standard motors at 50 Hz 400 V AC.
The actual starting and rated data of the motor to be switched must be
considered when selecting the units.
3RA241.-8XE31-2BB4
3RA242.-8XE32-1BB4
3RA242.-8XE32-2BB4
Rated data AC-3
Rated control
supply voltage
U
s
Screw terminals
Spring-type terminals
Operational
current
I
e
up to
Ratings of three-phase motors
1)
at 50 Hz and
400 V
230 V
400 V
500 V
690 V
A
kW
kW
kW
kW
V
Article No.
Article No.
DC operation 24 V
Size S00
For IO-Link connection
12
3.3
5.5
7.2
9.2
24 DC
3RA2415-8XE31-1BB4
3RA2415-8XE31-2BB4
16
4.7
7.5
10.3
9.2
24 DC
3RA2416-8XE31-1BB4
3RA2416-8XE31-2BB4
25
5.5
11
11
11
24 DC
3RA2417-8XE31-1BB4
3RA2417-8XE31-2BB4
Size S0
For IO-Link connection
25
7.1
11
15.6
19
24 DC
3RA2423-8XE32-1BB4
3RA2423-8XE32-2BB4
32 / 40
11.4
15 / 18.5
19
19
24 DC
3RA2425-8XE32-1BB4
3RA2425-8XE32-2BB4
50
--
22
19
19
24 DC
3RA2426-8XE32-1BB4
3RA2426-8XE32-2BB4
© Siemens AG 2014