I--- Qelectrotech Siemens Library - «HIGH-QUALITY»

QElectroTech is a libre and open-source desktop application designed to create diagrams and schematics. While it is primarily intended to produce electrical documentation, its versatility allows it to be used for pneumatics, hydraulics, process industries, and electronics diagrams. The software, often shortened to QET, was founded in 2007 by two French students and has since grown into a global project with active developers and contributors. QET focuses on being an effective CAD/CAE editor for schematics drawing, without built-in simulation features, but with a robust and user-friendly interface.

: Standardized symbols for Siemens circuit breakers, contactors, and motor starters that comply with IEC 61082-1 standards . i--- Qelectrotech Siemens Library -

: S7-1200, S7-1500, and legacy S7-300 architectures. QElectroTech is a libre and open-source desktop application

The QET community often fills gaps in the official collection. In the of the official forum, there are several threads dedicated to Siemens elements: QET focuses on being an effective CAD/CAE editor