Sales and repairs of power supplies for SIEMENS SIMATIC S7-400
S7-400 power supplies – new and refurbished parts and repairs
SIMATIC S7-400 power supplies power the CPU and modules through the rack. We supply PS 405 and PS 407 power supplies to suit the input voltage and PLC power requirements.
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 S7-400 power supplies parts
PS 405/407 Power Supplies and Interfaces
The PS 405/407 power supplies provide power to the S7-400 systems. The architecture also includes frames and interface modules for expanding the station; the choice of these components affects the configuration, redundancy, and future serviceability.
When selecting a power supply, we first calculate the total power consumption of the entire station to ensure the power supply has sufficient power headroom. We specifically verify the input voltage, type, and configuration of the chassis. In the case of a redundant configuration or expansion to an additional chassis, we also evaluate the appropriate interface module and wiring method.
New, refurbished, and discontinued parts from our warehouses
For current SIMATIC S7-400 parts, we first 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 check for refurbished, discontinued, and hard-to-find variants.
Diagnostics, Repairs, and Testing of S7-400 Parts
You can send the defective part to FOXON for diagnosis. We perform repairs on CPUs, I/O modules, communication modules, functional modules, and power supplies at specialized repair centers; after repair, the parts are functionally tested under load. If repair is not feasible, we will check for an identical new or refurbished part or a compatible replacement.
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 desired quantity; a photo of the label will also be helpful for replacements or repairs.
6ES7407-0DA02-0AA0 COVER
6ES7 407-0KA01-0AA0
6ES7407-0RA02-0AA0
6ES7407-0KR02-0AA1
6ES7407-0KR02-0AA0
6ES7405-0RA02-0AA0
6ES7405-0KR02-0AA1
6ES7405-0KR02-0AA0
6ES7405-0KA02-0AA0
6ES7405-0DA02-0AA0
Siemens 6ES7407-0DA02-0AA, PLC module
6ES7407-0DA02-0AA1
6ES7405-0DA02-0AA1
How to capture sporadic faults on Siemens S7 PLCs
Sporadic faults on Siemens SIMATIC S7 PLCs are difficult to find using standard online diagnostics. In this article, we show how auto.spy analyzer helps capture signals, events and video on a single timeline and trace the root cause of the problem afterwards.