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 inside-delta circuit
6
1)
Soft starter with screw terminals:
3RW442. to 3RW444. Standard delivery time RL = 2 days,
3RW445. to 3RW446. Standard delivery time RL = 5 days.
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
.
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 400 ... 600 V
50
--
22
30
--
45
--
--
30
40
5
3RW4422-
@
BC
@
5
1
1 unit
42H
62
--
30
37
--
55
--
--
40
50
5
3RW4423-
@
BC
@
5
1
1 unit
42H
81
--
45
45
--
73
--
--
50
60
5
3RW4424-
@
BC
@
5
1
1 unit
42H
99
--
55
55
--
88
--
--
60
75
5
3RW4425-
@
BC
@
5
1
1 unit
42H
133
--
75
90
--
118
--
--
75
100
5
3RW4426-
@
BC
@
5
1
1 unit
42H
161
--
90
110
--
142
--
--
100
125
5
3RW4427-
@
BC
@
5
1
1 unit
42H
Article No. supplement for connection types
• With screw terminals
1
• With spring-type terminals
3
196
--
110
132
--
173
--
--
125
150
5
3RW4434-
@
BC
@
5
1
1 unit
42H
232
--
132
160
--
203
--
--
150
200
5
3RW4435-
@
BC
@
5
1
1 unit
42H
281
--
160
200
--
251
--
--
200
250
5
3RW4436-
@
BC
@
5
1
1 unit
42H
352
--
200
250
--
312
--
--
250
300
5
3RW4443-
@
BC
@
5
1
1 unit
42H
433
--
250
315
--
372
--
--
300
350
5
3RW4444-
@
BC
@
5
1
1 unit
42H
542
--
315
355
--
485
--
--
400
500
5
3RW4445-
@
BC
@
5
1
1 unit
42H
617
--
355
450
--
546
--
--
450
600
5
3RW4446-
@
BC
@
5
1
1 unit
42H
748
--
400
500
--
667
--
--
600
750
5
3RW4447-
@
BC
@
5
1
1 unit
42H
954
--
560
630
--
856
--
--
750
950
15
3RW4453-
@
BC
@
5
1
1 unit
42H
1 065
--
630
710
--
954
--
--
850
1 050
15
3RW4454-
@
BC
@
5
1
1 unit
42H
1 200
--
710
800
--
1 065
--
--
950
1 200
15
3RW4455-
@
BC
@
5
1
1 unit
42H
1 351
--
800
900
--
1 200
--
--
1 050
1 350
15
3RW4456-
@
BC
@
5
1
1 unit
42H
1 524
--
900
1 000
--
1 351
--
--
1 200
1 500
15
3RW4457-
@
BC
@
5
1
1 unit
42H
1 680
--
1 000
1 200
--
1 472
--
--
1 300
1 650
15
3RW4458-
@
BC
@
5
1
1 unit
42H
1 864
--
1 100
1 350
--
1 680
--
--
1 500
1 900
15
3RW4465-
@
BC
@
5
1
1 unit
42H
2 103
--
1 200
1 500
--
1 864
--
--
1 700
2 100
15
3RW4466-
@
BC
@
5
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