Qelectrotech Siemens Library -
If you have a specific Siemens part not in the default list, you can import it using several methods supported by QElectroTech Documentation :
The primary goal of the Siemens library is to enable engineers, electricians, students, and hobbyists to design professional electrical schematics using real Siemens part numbers and device representations without incurring software licensing costs. It bridges the gap between open-source diagramming and industry-standard hardware documentation. qelectrotech siemens library
Even with a well-built library, issues arise. Here is the fix matrix: If you have a specific Siemens part not