User Manual

Commissioning
12.6 Setting the motor protection function
SIRIUS 3RW30 / 3RW40
Manual, 10/2010, 535199502000 DS 03
113
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 113)); if not, a fault will be indicated by the OVERLOAD LED
(red flashi
ng ) and it will not be possible to start the SIRIUS 3RW soft starter.
12.6.2 Motor current settings
Motor current settings
I
e
[A] I
min
[A] I
max
[A] CLASS 10 I
max
[A] CLASS 15 I
max
[A] CLASS 20
3RW40 24-... 12.5 5 12.5 11 10
3RW40 26-... 25.3 10.3 25.3 23 21
3RW40 27-... 32.2 17.2 32.2 30 27
3RW40 28-... 38 23 38 34 31
3RW40 36-... 45 22.5 45 42 38
3RW40 37-... 63 25.5 63 50 46
3RW40 38-... 72 34.5 72 56 50
3RW40 46-... 80 42.5 80 70 64
3RW40 47-... 106 46 106 84 77
3RW40 55-... 134 59 134 134 124
3RW40 56-... 162 87 162 152 142
3RW40 73-... 230 80 230 210 200
3RW40 74-... 280 130 280 250 230
3RW40 75-... 356 131 356 341 311
3RW40 76-... 432 207 432 402 372
12.6.3 Motor protection acc. to ATEX
Refer to the information in chapter Motor protection / intrinsic device protection (3RW40 only)
(Page 34).