Siemens Sofstarters
SIRIUS 3RW Soft Starters – as versatile as your application
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SIRIUS 3RW Soft Starters
Constraints
The 3RW soft starters should always be designed on the basis of the required rated operational current of the motor. The motor ratings listed in the selection and ordering data are rough guide values and designed for basic starting conditions (CLASS 10). For other starting conditions we recommend the Simulation Tool for Soft Starters (STS).
Motor rating data in kW and hp is based on IEC 60947‑4‑1.
At an installation altitude above 2 000 m, max. permissible operational voltage is reduced to 480 V.
Installation altitude for SIRIUS 3RW soft starters.
The selection and ordering data were determined for the following constraints (stand-alone installation without additional fan).
Applications | High Performance | General Performance | Basic Performance | ||
|---|---|---|---|---|---|
SIRIUS soft starters
| 3RW55 / 3RW55-F | 3RW52
| 3RW50
| 3RW40
| 3RW30
|
Constraints
| |||||
Maximum starting time (s)
| 20
| 10
| 3
| ||
Maximum starting current in % of motor current (Ie)
| 300
| ||||
Maximum number of starts per hour (1/h)
| 5
| 20
| |||
Simulation Tool for Soft Starters (STS)
The Simulation Tool for Soft Starters (STS) provides a convenient means of designing soft starters using a simple, quick and easy-to-use interface. Entering the motor and load data will simulate the application and prompt suggestions for suitable soft starters.
- Simple, quick and user-friendly operator interface
- Detailed and up-to-date Siemens motor database, including IE3/IE4 motors.
- Simulation of heavy starting up to CLASS 30
- Update-capable (e.g. motors, load types, functions)
- Fast simulations with minimum input data
- Immediate, graphical curve charts of start operations with limit values
- View in table form of suitable soft starters for the application
Get a FREE DOWNLOAD of the Simulation Tool for Soft Starters (STS).
Enabling enhanced efficiency, quality and safety for Food and Beverage operations.
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Find out more how this will benefit you or check Siemens Configurator.
