Siemens 6ES7 412-2EK07-0AB0 – CPU412-2 PN 1 MB 2 SCHNITTSTELLEN
Siemens 6ES7 412-2EK07-0AB0 – CPU412-2 PN 1 MB 2 SCHNITTSTELLEN from the CPU 412 range. Status: in phase-out at the manufacturer since October 2026. Van Haelen supplies it refurbished or new in sealed factory packaging, with a 24-month warranty.
Also written as: 6ES7412-2EK07-0AB0, 6ES74122EK070AB0
The Siemens 6ES7 412-2EK07-0AB0 is a S7-400 control component from the CPU 412 range. Manufacturer type designation: CPU412-2 PN 1 MB 2 SCHNITTSTELLEN. Status: in phase-out at the manufacturer since October 2026. Key data: weight 0.977 kg, HS code 85371091. When replacing, check the product version (issue) on the rating plate; for most installations the same or a higher issue is suitable. Ask us about exchange, repair and a spare-parts pool for your installation.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6ES7 412-2EK07-0AB0 |
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| Type designation | CPU412-2 PN 1 MB 2 SCHNITTSTELLEN |
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| Series | CPU 412 |
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| Manufacturer status | in phase-out at the manufacturer since October 2026 |
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| ETIM | EC000236 |
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| HS code | 85371091 |
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| Weight | 0,977 kg |
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Documentation from the manufacturer
All products of the CPU 412 series
Faults and fixes 6ES7 412-2EK07-0AB0
Problems with 6ES7 412-2EK07-0AB0: INTF or EXTF is on
INTF is an internal fault (CPU, firmware, program), EXTF an external one (a module, a station or the bus). The diagnostic buffer in STEP 7 names the cause and the module involved. BUS1F and BUS2F indicate a PROFIBUS or PROFINET fault on that interface.
6ES7 412-2EK07-0AB0: BATF LED, program lost after a power loss
The S7-400 keeps work memory and retentive data with a backup battery in the power supply module (PS405/PS407). BATF or a battery message means it is flat: replace the lithium battery while the supply is on, otherwise the program is gone after the next power loss. If the program is on a FLASH card, the CPU reloads it from there.
What do I check when replacing a 6ES7 412-2EK07-0AB0?
Check the firmware and product version on the rating plate against the project, carry over the memory card and download the program again. For CPUs in an H system (414H, 417H) make sure both CPUs run the same firmware and check the synchronisation modules.
Fault not fixed: replace, exchange or repair the 6ES7 412-2EK07-0AB0?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6ES7 412-2EK07-0AB0 refurbished (tested, with a test report per serial number) or new in factory packaging, with a 24-month warranty. The current lead time is shown with the condition on this page. Prefer an exchange: you get a refurbished unit straight away and return the faulty one within 14 days. Repairing your own unit is also possible: diagnosis, then a fixed price.
What information should I send for a quick diagnosis?
A photo of the rating plate (order number, product version, firmware), the exact fault code or LED state, when the fault occurs (at power-up, on enable, under load) and what you have already tried. For PLCs an export of the diagnostic buffer, for drives the parameter set. With that we can usually say the same day whether replacing, exchanging or repairing is best.
Frequently asked questions
Is the 6ES7 412-2EK07-0AB0 still available?
The manufacturer has put the 6ES7 412-2EK07-0AB0 in phase-out since October 2026; new units are getting scarce. Van Haelen supplies it from stock.
What does refurbished mean?
Cleaned, inspected, aged or critical components replaced and tested to our test protocol for this product family. You get a 24-month warranty, a test report and a serial number label.
What should I check when replacing a 6ES7 412-2EK07-0AB0?
Check the product version (issue) on the rating plate; for most installations the same or a higher issue is suitable.
Can I exchange or repair my faulty unit?
Yes. With an exchange Van Haelen supplies a refurbished unit straight away and you return the faulty one. With a repair you first get a diagnosis and then a fixed price, with test report and warranty.