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Efficiently combined

SIRIUS modular system

The SIRIUS modular system

Do you want to save time and effort? The SIRIUS modular system combines digital planning and a standard-compliant implementation for your requirement, regardless of the application or location. Comprehensive planning tools, consulting expertise, and tested product combinations will assist you in the transition from digital to actual control cabinet construction.


The SIRIUS modular system includes the portfolio for industrial control engineering for switching, protecting, monitoring, and starting motors and plants. This highly flexible modular system is quick to connect and communicate with other products and complies with all standards to ensure stress-free planning and construction of control cabinets.

Now available - SIRIUS new size S3

Product news, April 19, 2017

The world’s first contactor with integrated failsafe connection

This extension to the Sirius modular system simplifies safety applications at high power outputs


Siemens is extending its Sirius product portfolio to include new contactors in sizes S6 to S12. The new contactors for 55 kilowatts (kW) and above are the first devices of their type to have a certificated input for signals from pm-switching or pp-switching fail-safe or standard controls. This eliminates the coupling relays previously required. In addition, assessing the safety chain is made easier.

The modular system in detail

Efficient switching, protection, control, and monitoring of motors

Today everything has to go faster. The trend toward digitalization increases the pressure on industry. What technologies should be used for starting and monitoring motors? Are there any tips and tricks for planning control cabinets more efficiently, while still complying with the standards?

The digital and real worlds are converging with the SIRIUS modular system.

The answer lies in a perfect combination of just the right switching devices. With the SIRIUS modular system’s combination options, you can create your own custom solution for your specific application. The strength of the system lies in its modular construction covering all sizes, the functionality of the devices for a multitude of applications, and comprehensive, standard-compliant planning. This facilitates your procedures and speeds up your planning processes.

A question of the combination

Every control panel engineering job has different requirements, every market has different rules, and every project has different workflows. Therefore it’s important to be able to react flexibly and dynamically.

Everything you need to know, always in view

In this age of digitalization you face a constant flow of communications. Here’s where you can get all the important information you need about the SIRIUS portfolio and how you can optimize your control panel engineering.

The SIRIUS modular system at a glance
Download Brochure

Downloads, support and services

More information

You can find additional information here quickly and easily – everything you need to know about the advantages and typical applications of the SIRIUS modular system.


Dedicated users of the SIRIUS modular system

See application examples and sector-specific solutions that may be of interest to you, too.

Electrical engineering for the Europapark Rust