Sales and repairs of SIEMENS SIMATIC S7-300 CPUs

SIMATIC S7-300 CPUs – new and refurbished parts and repairs

SIMATIC S7-300 CPUs execute the PLC program and control machines and production lines. We supply standard CPUs, compact versions with integrated I/O and fail-safe CPUs, depending on the version.

FOXON ships parts worldwide and accepts faulty parts for repair

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We will send a non-binding quote within 1 hour.

+420 488 588 749 sales@foxon.eu

Enquire about purchase or repair Contact our sales team

Worldwide delivery
Our own and partner parts stock
Professional repairs
Parts with warranty

More about selecting SIMATIC S7-300 CPUs parts

S7-300 CPU for SIEMENS SIMATIC S7-300

The CPU controls the program, communication, and the station's local expansion modules. When replacing it, it is necessary to compare performance, interfaces, memory, and project compatibility.

Typical Uses and Proper Selection

CPUs 312 through 319 form the control core of the S7-300 station. When replacing them, we compare the complete part number, performance, memory, MMC card, communication interfaces, hardware/firmware versions, and support for a specific STEP 7 project.

Please send us the complete order number, a photo of the label, and, if possible, information about the wiring or project. Based on this information, we will verify compatibility, the availability of a new or refurbished part, whether a repair is possible, and a suitable replacement.

How do I choose the right model?

The most reliable method is to select the part based on the complete SIEMENS part number. When replacing a part, we also recommend verifying the hardware and firmware versions, the part’s function, the station configuration, and compatibility in TIA Portal.

the complete order number and the quantity requested,
the function and technical specifications of the original part,
compatibility with the CPU, expansion modules, and the project in question.

New and refurbished parts from our warehouses

For current S7-300 parts, we primarily check the availability of new, genuine SIEMENS parts. We have access to an extensive network of industrial parts warehouses in Europe and around the world, which is why we can also verify refurbished, discontinued, and hard-to-find variants.

Spare Parts Warehouse for Industrial Automation.

Warehouse for Industrial Parts and Automation Components — Warehouse for industrial parts and automation components.

Repairs of SIEMENS SIMATIC S7-300 Parts

You can send the defective part to FOXON for diagnosis and repair. We perform repairs at specialized repair centers in Europe, and after repair, the parts are functionally tested under load.

Specialized Repair Center for Industrial Electronics — A specialized repair center for industrial electronics.

Diagnosis and Repair of Industrial Electronics — Diagnosis and repair of industrial electronics.

Details of an Electronics Repair on Industrial Equipment — Details of an electronics repair on industrial equipment.

Frequently Asked Questions

Can the CPU be replaced with a newer version?

Often, yes, but it's always necessary to verify the hardware/firmware version, configuration, license, and project compatibility in TIA Portal.

How quickly can you deliver the part?

Delivery times depend on the specific part and warehouse. Thanks to our access to numerous warehouses, we can typically arrange delivery within a few days; for urgent needs, we can offer express delivery within hours. For urgent requests, call us immediately—we can arrange express delivery of selected parts day or night.

Is the order number enough to place a request?

Yes. Ideally, provide the full number from the label and the quantity you need; a photo of the label will also be helpful for replacements or repairs.

Sales, Repair, Purchase

6ES7614-1HA03-0AB3-Z

In external stock

Code: 6ES7614-1HA03-0AB3-Z