SIEMENS
6/24
Siemens IC 10 · 2017
SIRIUS 3RW Soft Starters
3RW30, 3RW40 for Standard Applications
3RW40
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
Fuseless version
Soft starters
Motor starter protectors
1)
Nominal current
400 V + 10 %
Rated current
575 V + 10 %
Rated current
Q11
Q1
I
q max
Q1
I
q max
Type
A
Type
kA
A
Type
kA
A
Type of coordination "1"
3RW4024
12.5
3RV2021-4AA/
3RV2011-4AA
(in size S00)
55
16
--
--
--
3RW4026
25
3RV2021-4DA
55
25
--
--
--
3RW4027
32
3RV2021-4EA
55
32
--
--
--
3RW4028
38
3RV2021-4FA
55
40
--
--
--
3RW4036
45
3RV2031-4WA10
10
45
--
--
--
3RW4037
63
3RV2031-4JA10
10
63
--
--
--
3RW4038
72
3RV2031-4KA10
10
75
--
--
--
3RW4046
80
3RV1041-4LA10
11
90
--
--
--
3RW4047
106
3RV1041-4MA10
11
100
--
--
--
3RW4055
134
3VL3720-2DC36
35
200
3VL3720-1DC36
12
200
3RW4056
162
3VL3720-2DC36
35
200
3VL3720-1DC36
12
200
3RW4073
230
3VL4731-2DC36
65
315
3VL5731-3DC36
35
315
3RW4074
280
3VL4731-2DC36
65
315
3VL5731-3DC36
35
315
3RW4075
356
3VL4740-2DC36
65
400
3VL5740-3DC36
35
400
3RW4076
432
3VL5750-2DC36
65
500
3VL5750-3DC36
35
500
M
3~
Q11
Q1
NSB0_01902
1
ToC
© Siemens AG 2016