Powerful size added to Sirius portfolio



  • Integrated portfolio with switching, protecting and monitoring functions
  • New size S2 with a current rating of 80 A, a power rating of 37 kW, and a width of 55 mm
  • Connection via the open systems AS-Interface and IO-Link thanks to simple plug-on function modules

Siemens has expanded its Sirius modular system with a new flexible and modular device series. The switching, protecting and monitoring devices are now also available in size S2. S2 has a compact width of just 55 mm, a power rating of up to 37 kW, as well as a current rating of 80 A. The new devices are thus especially space-saving in the control cabinet, meeting the requirements of modern plant engineering and mechanical engineering for components with minimum space requirements. The same accessories used on the sizes S00 and S0, already introduced in 2009, can also be used for the new size S2. The new devices can be connected to the open systems AS-Interface and IO-Link simply via the plug-on function modules. Direct monitoring and control of the application are possible using the current monitoring relay that can be integrated into the feeder. The function modules for logic avoid intensive wiring effort, and simultaneously reduce the risk of wiring errors. Thanks to these function modules, and the possibility of integrating current monitoring directly in the feeder, the devices can be integrated easily into the automation environment, such as Totally Integrated Automation (TIA).

Approximately 45,000 type-tested combinations enable simple configuring of the components. The individual devices can be combined as desired and thus flexibly assembled. They are available throughout with screw-type connections and spring-loaded connections, both in the main circuit and in the control circuit. From size S2, spring-loaded connections are offered in the control circuit only, due to the high current.

The latest generation of the Sirius modular system is equipped throughout for conversion to the new IE3 motor generation. Thanks to global approvals, the devices can be used anywhere, and they comply with all the necessary standards.