Motor Current Settings; Motor Protection Acc. To Atex - Siemens SIRIUS 3RW30 Manual

Commissioning
13.4 Setting the motor protection function
You can set different CLASS characteristics according to the startup class. If the
potentiometer is set to OFF, the "electronic motor overload protection" function is
deactivated.
Note
The rated data of the soft starters refers to normal starting (CLASS 10). The starters may
need to be calculated with a size allowance for heavy-duty starting (> CLASS 10). You can
only set a rated motor current that is lower than the soft starter rated current (refer to chapter
Motor current settings (Page 120)); if not, a fault will be indicated by the OVERLOAD LED
(red flashing ) and it will not be possible to start the SIRIUS 3RW soft starter.
13.4.2

Motor current settings

3RW4024-...
3RW4026-...
3RW4027-...
3RW4028-...
3RW4036-...
3RW4037-...
3RW4038-...
3RW4046-...
3RW4047-...
3RW4055-...
3RW4056-...
3RW4073-...
3RW4074-...
3RW4075-...
3RW4076-...
13.4.3

Motor protection acc. to ATEX

Refer to the information in chapter Motor protection / intrinsic device protection (3RW40 only)
(Page 42).
120
I [A] I [A] I [A] CLASS 10
e min max
12.5 5 12.5
25.3 10.3 25.3
32.2 17.2 32.2
38 23 38
45 22.5 45
63 25.5 63
72 34.5 72
80 42.5 80
106 46 106
134 59 134
162 87 162
230 80 230
280 130 280
356 131 356
432 207 432
I [A] CLASS 15 I
max max
11 10
23 21
30 27
34 31
42 38
50 46
56 50
70 64
84 77
134 124
152 142
210 200
250 230
341 311
402 372
SIRIUS 3RW30 / 3RW40
Manual, 10/2018, NEB535199502000/RS-AB/005
[A] CLASS 20