SIEMENS
6/42
Siemens IC 10 · 2017
SIRIUS 3RW Soft Starters
3RW44 for High Feature Applications
General data
6
Motor feeders with soft starters
The type of coordination according to which the motor feeder
with soft starter is mounted depends on the application-specific
requirements. Normally, fuseless mounting (combination of
motor starter protector and soft starter) is sufficient.
If type of coordination "2" is to be fulfilled, then semiconductor
fuses must be fitted in the motor feeder.
1)
The rated motor current must be considered when selecting the devices.
Type of coordination 1 according to IEC 60947-4-1:
After a short-circuit incident, the unit is defective and
therefore unsuitable for further use (protection of
persons and system guaranteed).
Type of coordination 2 in according to
IEC 60947-4-1: After a short-circuit incident the unit
is suitable for further use (protection of persons and
system guaranteed).
The type of coordination refers to soft starters in
combination with the stipulated protective device
(motor starter protector/fuse), not to any additional
components in the feeder.
The types of coordination are indicated in the
corresponding tables by the symbols shown on
orange backgrounds.
1
ToC
2
ToC
Inline circuit fuseless version
Soft starters
Motor starter protectors
1)
Nominal current
400 V +10 %
Rated current
Q11
Q1
Type
A
Type
A
Type of coordination "1"
3RW4422 and 3RW4423:
I
q
= 42 kA; 3RW4424 ... 3RW4427:
I
q
= 32 kA; 3RW4434 and 3RW4435:
I
q
= 16 kA; 3RW4436 ... 3RW4466:
I
q
= 65 kA
3RW4422
29
3RV2021-4EA10
32
3RW4423
36
3RV2021-4FA10
40
3RW4424
47
3RV2031-4WA10
52
3RW4425
57
3RV2031-4JA10
65
3RW4426
77
3RV2031-4RA10
80
3RW4427
93
3RV1042-4MA10
100
3RW4434
113
3VL1716-2DD36
160
3RW4435
134
3VL1716-2DD36
160
3RW4436
162
3VL3725-2DC36
250
3RW4443
203
3VL4731-3DC36
315
3RW4444
250
3VL4731-3DC36
315
3RW4445
313
3VL4740-3DC36
400
3RW4446
356
3VL4740-3DC36
400
3RW4447
432
3VL5750-3DC36
500
3RW4453
551
3VL6780-3SB36
800
3RW4454
615
3VL6780-3SB36
800
3RW4455
693
3VL6780-3SB36
800
3RW4456
780
3VL7710-3SB36
1 000
3RW4457
880
3VL7710-3SB36
1 000
3RW4458
970
3VL7712-3SB36
1 250
3RW4465
1 076
3VL7712-3SB36
1 250
3RW4466
1 214
3VL7712-3SB36
1 250
M
3~
Q11
Q1
NSB0_01016b
1
ToC
© Siemens AG 2016