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As versatile as your application


Limited-current starting for the entire range of machine types, for any application

No matter what kind of plant you’re designing, the new Sirius 3RW5 device family of soft starters is suitable for any drive. It is easy to configure and integrate with automation. And intelligent, self-learning functionalities not only keep piping systems clean but also support condition monitoring.


Learn more about our new soft starter types so you can have a successful plant project!

Interested in the new generation of soft starters? Learn more about the clever functions of the new 3RW5 soft starter!
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New soft starter series

The next generation of soft starters is ready

When it comes to pumps, fans, and compressors, the soft starters from Siemens have been the first choice since many years. And something even better is coming: The next generation of our soft starters is on the horizon. 

These four points simplify your planning, save you time and effort, and optimize your processes:

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Benefit right from the start

You can enjoy all the advantages of the new generation of soft starters in your next project: greater flexibility, intelligent automatic parameterization, TIA integration, electrical robustness, and compliance with worldwide standards.