Siemens Sizer 3.23 Extra Quality Download May 2026

Siemens SIZER 3.23 — Feature Overview and Download Guidance

What it is

Siemens SIZER is a Windows application for configuring and selecting Siemens low-voltage distribution products (circuit breakers, contactors, protection relays, motor starters, busbar systems, etc.). Version 3.23 is a specific release in the SIZER 3 series that adds component data, compatibility checks, and automated bill-of-material generation to help electrical designers and engineers size protective devices and assemblies.

Extended Drive Support: Full support for the SINAMICS G120 and S120 families, allowing for precise configuration of PM240 and PM340 Power Modules.
SINAMICS DCC (Drive Control Chart): Integrated support for complex function block diagrams directly within the sizing tool.
Energy Efficiency Analysis: Calculate energy consumption profiles and potential savings using regenerative feedback.
Project Data Export: Seamless integration with TIA Portal and STARTER, allowing you to export your calculations directly into your PLC project.
Mechanical Calculations: Built-in gearmotor sizing for various gearbox types (helical, bevel, and parallel shaft).

Recommendation

✅ Use the official free Siemens Sizer 2024 (cloud or local‑install version via Siemens Industry Online Support).
❌ Avoid downloading 3.23 from unofficial sources unless it’s an internal company archive that you’ve virus‑scanned. siemens sizer 3.23 download

Part 7: Legal and Ethical Considerations for the Download

Is Sizer 3.23 free? Yes. Siemens distributes selection tools free of charge to engineers. You do not need a license key.
Can I redistribute the installer? No. The Siemens End User License Agreement (EULA) prohibits hosting the software on private servers. Always link to the official Siemens support page.
Why isn’t 3.23 on the main Siemens download page? Siemens focuses on promoting Sizer 4.0 and Xcelerator. Old versions are moved to the “Archive” section.

≥ 1 GB free RAM (16 GB recommended for modern 64-bit systems) Hard Disk At least 2 GB free space + 100 MB on system drive Display Minimum 1024x768 pixels Additional Software Siemens SIZER 3

Application Support: Specific workflows for conveyors, pumps, fans, hoists, and winders. Extended Drive Support: Full support for the SINAMICS