SIEMENS
6/6
Siemens IC 10 · 2017
SIRIUS 3RW Soft Starters
General data
6
Selection aid for soft starters
●
Recommended soft starter
❍
Possible soft starter
1)
The mass inertia of the fan is <10 times the mass inertia of the motor.
2)
The mass inertia of the fan is
10 times the mass inertia of the motor.
Application
SIRIUS 3RW30
SIRIUS 3RW40
SIRIUS 3RW44
Standard applications
Standard applications
High Feature applications
Normal starting (CLASS 10)
Pumps
●
●
●
Pumps with special pump stop (to prevent
water hammer)
●
Heat pumps
●
●
●
Hydraulic pumps
❍
●
●
Presses
❍
●
●
Conveyor belts
❍
●
●
Roller conveyors
❍
●
●
Screw conveyors
❍
●
●
Escalators
●
●
Piston compressors
●
●
Screw compressors
●
●
Small fans 1)
●
●
Centrifugal blowers
●
●
Bow thrusters
●
●
Heavy starting (CLASS 20)
Stirrers
❍
●
Extruders
❍
●
Lathes
❍
●
Milling machines
❍
●
Very heavy starting (CLASS 30)
Large fans 2)
●
Circular saws/bandsaws
●
Centrifuges
●
Mills
●
Crushers
●
© Siemens AG 2016