Siemens SIRIUS 3RW40 - Application Examples for Normal Starting (CLASS 10) with 3 RW30 and 3 RW40

Configuration
12.2 Startup class
SIRIUS 3RW30 / 3RW40
90 Manual, 10/2018, NEB535199502000/RS-AB/005
12.2.1
Application examples for normal starting (CLASS 10) with 3RW30 and 3RW40
Recommended basic parameter settings
Assuming the conditions and constraints indicated below apply, the size of the soft starters
can be equivalent to the motor rating for a normal starting characteristic (CLASS 10).
You can find a suitable soft starter for the required motor rating based on the required
startup class in chapter Technical data (Page 127).
For typical applications where normal starting applies as well as recommended parameter
settings for the soft starter, refer to the table below.
1) Small fan: Mass inertia (centrifugal mass) of fan < 10 x mass inertia of motor
General conditions and constraints
CLASS 10 (normal starting)
3RW30: Maximum starting time 3 s, 300 % starting current, 20 starts / hour
3RW40: Maximum starting time 10 s, 300% current limiting, 5 starts / hour
ON time
30%
Standalone assembly
Installation altitude
Max. 1000 m / 3280 ft
Ambient temperature kW
40 °C / 104 °F