- SIEMENS
- SIMATIC S7-300
- Power Supply
Sales and repairs of power supplies for SIMATIC S7-300
S7-300 power supplies – new and refurbished parts and repairs
SIMATIC S7-300 power supplies power the PLC and connected devices. We supply Siemens PS 307 power supplies to suit the current demand and system configuration.

We will send a non-binding quote within 1 hour.
- Worldwide delivery
- Our own and partner parts stock
- Professional repairs
- Parts with warranty
More about selecting S7-300 power supplies parts
S7-300 Power Supplies for SIEMENS SIMATIC S7-300
The power supply ensures a stable power supply to the CPU and connected modules. When selecting a power supply, verify the input voltage, output, power rating, and requirements of the entire workstation.
Typical Uses and Proper Selection
The power supply must be able to handle the power consumption of the entire S7-300 station with the necessary margin. We will verify the input voltage, output current, module type, space on the rail, and compatibility with other components of the system.
Please send us the full 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 you 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 recommend that you also verify 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, so we can also verify the availability of refurbished, discontinued, and hard-to-find variants.


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.



Frequently Asked Questions
Add up the power consumption of the CPU, I/O modules, and connected devices, and allow for the necessary power reserve.
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 a matter of hours. For urgent requests, call us immediately—we can arrange express delivery of selected parts day or night.
Yes. Ideally, provide the full number from the label and the requested quantity; a photo of the label will also be helpful for replacements or repairs.

6ES7 307-1EA00-0AA0

6ES7307-1KA01-0AA0

6ES7307-1KA00-0AA0

6ES7307-1EA00-0AA0

6ES7307-1BA00-0AA0

6ES7307-1KA02-0AA0

6ES7307-1EA01-0AA0
from 37,51 EUR Incl. VAT

6ES7305-1BA80-0AA0

6ES7307-1BA01-0AA0
from 27,83 EUR Incl. VAT

6ES7307-1EA80-0AA0

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