Preface Authors Martin Berger Application consulting and business development for control panel engineering and low- voltage controls and distribution Staatlich geprьfter Techniker (state-certified technician) Email: bergermartin@siemens.com Wolfgang Christ (Dipl. Ing.) Power Engineering Industrial applications for medium and low-voltage systems in international IEC business segment Email: christ.wolfgang@siemens.com Gerhard Flierl (Dipl. Ing.) Electrical Engineering / Business Administration Application consulting and business development for control panel engineering and low- voltage controls and distribution Email: gerhard.flierl@siemens.com Ralph Neumann (Dipl.
Ing.) Electrical Engineering / Automation Technology Development / configuring of electrical systems and implementation of electrical switchgear designs for machine tools Email: ralph.neumann@siemens.com Marcel Schulz Application consulting and business development for digital engineering Email: marcel.schulz@siemens.com Control Panels compliant with IEC Standards and European Directives 6 Reference Manual, 10/2017, A5E38284819002A/RS-AB/002