SIEMENS
6/50
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 inside-delta circuit
6
■
Selection and ordering data
1)
3RW442. to 3RW444. soft starters with screw terminals:
Standard delivery time SD = 1 day.
2)
Control by way of the internal 24 V DC supply and direct control via PLC
possible.
Note:
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 the selection table, the unit rated current
I
e
in the inside-delta
circuit refers to the three-phase motor's rated operational
current. The actual current of the device is approx. 58 % of this
value.
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
.
3RW442.
3RW443.
3RW444.
3RW445.
3RW446.
3RW ambient temperature 40 °C
3RW ambient temperature 50 °C
SD
1)
Normal starting (CLASS 10)
In inside-delta 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
Inside-delta circuit, rated operational voltage 200 ... 460 V
50
15
22
--
--
45
10
15
30
--
5
3RW4422-
@
BC
@
4
1
1 unit
42H
62
18.5
30
--
--
55
15
20
40
--
5
3RW4423-
@
BC
@
4
1
1 unit
42H
81
22
45
--
--
73
20
25
50
--
5
3RW4424-
@
BC
@
4
1
1 unit
42H
99
30
55
--
--
88
25
30
60
--
5
3RW4425-
@
BC
@
4
1
1 unit
42H
133
37
75
--
--
118
30
40
75
--
5
3RW4426-
@
BC
@
4
1
1 unit
42H
161
45
90
--
--
142
40
50
100
--
5
3RW4427-
@
BC
@
4
1
1 unit
42H
Article No. supplement for connection types
• With screw terminals
1
• With spring-type terminals
3
196
55
110
--
--
173
50
60
125
--
5
3RW4434-
@
BC
@
4
1
1 unit
42H
232
75
132
--
--
203
60
75
150
--
5
3RW4435-
@
BC
@
4
1
1 unit
42H
281
90
160
--
--
251
75
100
200
--
5
3RW4436-
@
BC
@
4
1
1 unit
42H
352
110
200
--
--
312
100
125
250
--
5
3RW4443-
@
BC
@
4
1
1 unit
42H
433
132
250
--
--
372
125
150
300
--
5
3RW4444-
@
BC
@
4
1
1 unit
42H
542
160
315
--
--
485
150
200
400
--
5
3RW4445-
@
BC
@
4
1
1 unit
42H
617
200
355
--
--
546
150
200
450
--
5
3RW4446-
@
BC
@
4
1
1 unit
42H
748
250
400
--
--
667
200
250
600
--
5
3RW4447-
@
BC
@
4
1
1 unit
42H
954
315
560
--
--
856
300
350
750
--
15
3RW4453-
@
BC
@
4
1
1 unit
42H
1 065
355
630
--
--
954
350
400
850
--
15
3RW4454-
@
BC
@
4
1
1 unit
42H
1 200
400
710
--
--
1 065
350
450
950
--
15
3RW4455-
@
BC
@
4
1
1 unit
42H
1 351
450
800
--
--
1 200
450
500
1 050
--
15
3RW4456-
@
BC
@
4
1
1 unit
42H
1 524
500
900
--
--
1 351
450
600
1 200
--
15
3RW4457-
@
BC
@
4
1
1 unit
42H
1 680
560
1 000
--
--
1 472
550
650
1 300
--
15
3RW4458-
@
BC
@
4
1
1 unit
42H
1 864
630
1 100
--
--
1 680
650
750
1 500
--
15
3RW4465-
@
BC
@
4
1
1 unit
42H
2 103
710
1 200
--
--
1 864
700
850
1 700
--
15
3RW4466-
@
BC
@
4
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
2)
• 115 V AC
3
• 230 V AC
4
© Siemens AG 2016