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Home » Discontinuation by Siemens of S7 300 series

Discontinuation by Siemens of S7 300 series

26/01/2026 By Siemens

Recently, there has been an increasing amount of misleading information regarding the discontinuation of the SIMATIC S7-300 PLC series, which has raised concerns among many companies and created pressure to quickly migrate to newer systems.

We would like to assure you that there is no need for panic or rushed investments.

PLC series by Siemens S7-300 Remains Operational
Although Siemens has ended the production of new units, support and the availability of spare parts are guaranteed by us. This means that your existing equipment and control systems can be safely and reliably operated for many more years.

We Stock large qty of S7-300 Parts into our EU Warehouses
Unlike suppliers who pressure customers into immediate migration, we maintain a large inventory of SIMATIC S7-300 components:

PLC units
I/O modules
Power supply units
Accessories
Thanks to this, you:
Do not need to replace a functional system
Minimize investment costs
Avoid unplanned downtime
Maintain production continuity

Migration Yes – but not right now
Transitioning to newer platforms such as S7-1500 makes sense when:

Planning a modernization of the technology
Expanding production
Changing safety or process requirements
However, migration should not be forced solely by concerns about the availability of spare parts if your S7-300 system is stable and fully functional.

Recommendations
✔ If your S7-300 is running well, let it continue operating
✔ Secure spare parts and service certainty
✔ Plan migration strategically, not under pressure

We would be happy to discuss this topic with you and help propose the most suitable solution for your technology.

📩 Contact us to find out how long you can safely operate your SIMATIC S7-300 without unnecessary costs.

Filed Under: KnowledgeBase Tagged With: discontinuation s7 300, obsolete s7 300 parts, s7 300 plc parts, siemens s7 300

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SectorMetric Ltd - registered in UK
Company Reg Code 16520771
Warehouses in UK, NL and Czech Republic
Sales Dept: sales@s7automation.com
Support Dept: support@s7automation.com
Phone: +44 2045770379 (9AM-5PM CET)

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