SIEMENS
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Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate
SIRIUS 3RW Soft Starters
3RW44 for High Feature Applications
SIRIUS 3RW44 for normal starting (CLASS 10) in inline circuit
6
1)
Control by way of the internal 24 V DC supply and direct control via PLC
possible.
Note:
3RW44 soft starters may be used in isolated supply networks
(IT systems) up to 600 V AC.
The listed motor ratings are rough guide values. The soft starter
should always be designed on the basis of the required rated
operational current of the motor.
The solid-state SIRIUS 3RW44 soft starters are designed for
easy starting conditions. The selection and ordering data were
determined for the following boundary conditions
(see also the
notes on page 6/6)
:
•
Maximum starting time in s: 10
•
Maximum starting current in % of motor current
I
e
: 300
•
Maximum number of starts per hour in 1/h: 5
In case of additional requirements, it may be necessary to
choose a larger device. In some cases, however, the safety
margins taken into account in the selection also permit the listed
units to be used in boundary conditions which are slightly more
demanding. Detailed technical information for a configuration
which is tailored exactly to the application,
see manual
.
For dimensioning soft starters under other boundary conditions,
also for heavy starting up to CLASS 30, we recommend our
Simulation Tool for Soft Starters (STS):
or our Technical Assistance:
Tel.: +49 (0) 911-895-5900,
Email:
technical-assistance@siemens.com
.
3RW ambient temperature 40 °C
3RW ambient temperature 50 °C
SD
Normal starting (CLASS 10)
In inline circuit
PU
(UNIT,
SET, M)
PS*
PG
Rated values of
three-phase motors
Rated values of
three-phase motors
Opera-
tional
current
I
e
Rating at
operational voltage
U
e
Opera-
tional
current
I
e
Rating at
operational voltage
U
e
Article No.
Price
per PU
230 V
400 V
500 V
690 V
200 V
230 V
460 V
575 V
A
kW
kW
kW
kW
A
hp
hp
hp
hp
d
Inline circuit, rated operational voltage 400 ... 690 V
29
--
15
18.5
30
26
--
--
15
20
5
3RW4422-
@
BC
@
6
1
1 unit
42H
36
--
18.5
22
37
32
--
--
20
25
5
3RW4423-
@
BC
@
6
1
1 unit
42H
47
--
22
30
45
42
--
--
25
30
5
3RW4424-
@
BC
@
6
1
1 unit
42H
57
--
30
37
55
51
--
--
30
40
5
3RW4425-
@
BC
@
6
1
1 unit
42H
77
--
37
45
75
68
--
--
50
50
5
3RW4426-
@
BC
@
6
1
1 unit
42H
93
--
45
55
90
82
--
--
60
75
5
3RW4427-
@
BC
@
6
1
1 unit
42H
Article No. supplement for connection types
• With screw terminals
1
• With spring-type terminals
3
113
--
55
75
110
100
--
--
75
75
5
3RW4434-
@
BC
@
6
1
1 unit
42H
134
--
75
90
132
117
--
--
75
100
5
3RW4435-
@
BC
@
6
1
1 unit
42H
162
--
90
110
160
145
--
--
100
125
5
3RW4436-
@
BC
@
6
1
1 unit
42H
203
--
110
132
200
180
--
--
125
150
5
3RW4443-
@
BC
@
6
1
1 unit
42H
250
--
132
160
250
215
--
--
150
200
5
3RW4444-
@
BC
@
6
1
1 unit
42H
313
--
160
200
315
280
--
--
200
250
5
3RW4445-
@
BC
@
6
1
1 unit
42H
356
--
200
250
355
315
--
--
250
300
5
3RW4446-
@
BC
@
6
1
1 unit
42H
432
--
250
315
400
385
--
--
300
400
5
3RW4447-
@
BC
@
6
1
1 unit
42H
551
--
315
355
560
494
--
--
400
500
15
3RW4453-
@
BC
@
6
1
1 unit
42H
615
--
355
400
630
551
--
--
450
600
15
3RW4454-
@
BC
@
6
1
1 unit
42H
693
--
400
500
710
615
--
--
500
700
15
3RW4455-
@
BC
@
6
1
1 unit
42H
780
--
450
560
800
693
--
--
600
750
15
3RW4456-
@
BC
@
6
1
1 unit
42H
880
--
500
630
900
780
--
--
700
850
15
3RW4457-
@
BC
@
6
1
1 unit
42H
970
--
560
710
1 000
850
--
--
750
900
15
3RW4458-
@
BC
@
6
1
1 unit
42H
1 076
--
630
800
1 100
970
--
--
850
1 100
15
3RW4465-
@
BC
@
6
1
1 unit
42H
1 214
--
710
900
1 200
1 076
--
--
950
1 200
15
3RW4466-
@
BC
@
6
1
1 unit
42H
Article No. supplement for connection types
• With spring-type terminals
2
• With screw terminals
6
Article No. supplement for rated control supply voltage
U
s
1)
• 115 V AC
3
• 230 V AC
4
© Siemens AG 2016