A messy library kills design speed. Use this folder structure under ~/qelectrotech/elements/ :
: Most standard Siemens components (PLCs, contactors, relays) are bundled with the software. You can find them under the "Official"
A robust Siemens library for QElectroTech typically categorizes components into functional folders. When searching for or building a library, look for these essential product families: 1. Programmable Logic Controllers (PLCs)
Given the open-source nature of QET, its user community plays a vital role in expanding the software's library. You can often find user-created element collections for specific products. qelectrotech siemens library
: C:\Users\[YourUsername]\AppData\Roaming\qet\elements\ or check your documents folder under Automation\QElectroTech\elements . Linux : ~/.qet/elements/ Step 2: Extract and Copy the Library
Using detailed Siemens-specific element collections—ranging from to SIRIUS motor starters —helps you bridge the gap between open-source drafting software and proprietary industrial hardware ecosystems. The Importance of the Siemens Element Library
To maintain professional and clean schematics, keep these best practices in mind when working with Siemens hardware: Use Master/Slave Relationships for Contactors A messy library kills design speed
Drag-and-drop functionality for common components like the S7-1200 or LOGO! modules drastically reduces engineering hours. Core Components of a Siemens QElectroTech Library
Out of the box, QElectroTech provides a collection of generic electrical symbols (contactors, relays, switches) and a basic set of controller graphics. However, industrial automation relies on specific hardware dimensions, terminal layouts, and part numbers. A dedicated Siemens library provides exact graphical representations of real-world components, including:
If you have a new S7-1200 G2 module, draw it in QET and upload your .elmt file to the QET forum. The community relies on user contributions to keep the library current. When searching for or building a library, look
One community user summed up the collaborative spirit of the project: "I start to create some component that are missing in my version of qet like Siemens 1500 or some Pilz security relay. Is it possible to send to qet this component or create a library available for all?". This highlights how users actively contribute to filling any gaps in the library.
The QElectroTech project is actively maintained. The most recent version at the time of writing is , which was released in May 2026 and includes numerous improvements:
(QET) is a free, open-source software for creating electrical schematics, wiring diagrams, and automation projects. It’s a popular alternative to expensive proprietary tools like EPLAN or AutoCAD Electrical.