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2-year Warranty

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Siemens 6FC5357-0BB22-0AE0

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2 Year warranty

Part Number6FC5357-0BB22-0AE0
Model #6FC53570BB220AE0
Warranty2 Year
ApplicationControl Board
Control Board840 DE
Software MemoryWithout Memory

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed 6FC5357-0BB22-0AE0 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 6FC5357-0BB22-0AE0 we also repair a wide range of other Siemens products, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 6FC5357-0BB22-0AE0, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

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Ask about exchanging your faulty 6FC5357-0BB22-0AE0 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Siemens 6FC5357-0BB22-0AE0 Overview

Siemens products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. They come with a 2-year warranty from MRO Electric. We also carry Accessories from other manufacturers such as FANUC and Yaskawa.


The Siemens 6FC53570BB220AE0, a stalwart in the realm of industrial automation, stands as a testament to Siemens' commitment to precision and reliability. This technical marvel belongs to the SINUMERIK product line, specifically designed as a control board for the 840/DE platform. Within its core, the 6FC53570BB220AE0 houses the NCU 572.3, featuring the robust AMD K6-2 processor. This technical description unravels the intricacies of this industrial powerhouse, delineating its architecture, specifications, and functionality.

Product Type Information

Product Type: SINUMERIK Control Board

Model: 840/DE NCU 572.3

Processor: AMD K6-2

Memory: Without System Software Memory

840/DE Platform Integration

At the heart of the 6FC53570BB220AE0 lies its compatibility with the 840/DE platform, underscoring its role as a critical component in the SINUMERIK ecosystem. The 840/DE platform is renowned for its advanced control capabilities, catering to the intricacies of modern industrial processes. As a SINUMERIK control board, this module plays a pivotal role in orchestrating and optimizing the myriad operations within an industrial setting.

NCU 572.3 Architecture

The NCU (Numerical Control Unit) 572.3 is the crux of this control board, orchestrating the precision and coordination essential in industrial machining and automation. With Siemens' signature engineering excellence, the NCU 572.3 ensures seamless communication and synchronization of diverse components within an industrial setup. Its architecture is tailored for efficiency, responsiveness, and adaptability to the dynamic demands of manufacturing environments.

AMD K6-2 Processor Power

Driving the computational prowess of the 6FC53570BB220AE0 is the AMD K6-2 processor. Renowned for its reliability and performance, the K6-2 processor ensures rapid data processing and execution of complex control algorithms. This is particularly crucial in industries where real-time responsiveness and precision are non-negotiable.

Memory Configuration

A distinctive feature of the 6FC53570BB220AE0 is its configuration without system software memory. This design choice allows for flexibility in integrating the control board into existing setups, accommodating various software configurations as per the specific needs of the industrial application. It offers a blank canvas for system software customization, empowering industrial engineers to tailor the control environment to their precise requirements.

Reliability and Robustness

Siemens has long been synonymous with reliability in industrial automation, and the 6FC53570BB220AE0 is no exception. Engineered to endure the rigors of industrial environments, this control board is characterized by its robust construction and adherence to stringent quality standards. Its reliability is a cornerstone for sustained operations in mission-critical applications.

Application Flexibility

The 6FC53570BB220AE0's adaptability extends beyond its technical specifications. Its integration into diverse industrial applications, ranging from CNC machining to automated production lines, showcases its versatility. This control board's capability to seamlessly interface with different components and systems makes it a linchpin in enhancing the overall efficiency of industrial processes.


In conclusion, the Siemens 6FC53570BB220AE0 is a pinnacle of engineering in the realm of industrial automation. As a SINUMERIK control board with the 840/DE NCU 572.3 and AMD K6-2 processor, it symbolizes Siemens' dedication to providing solutions for precision control in industrial settings. Its flexibility, reliability, and advanced architecture position it as a cornerstone in the evolution of industrial automation, catering to the demands of modern manufacturing with unparalleled precision and efficiency.

Contact Us Today For More Information About Siemens Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6FC5357-0BB22-0AE0, take a look at more from our Accessories line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 6FC5357-0BB22-0AE0 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

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Very happy with the overall service, delivery, communication and delivery,

Conley Cooke

I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


We have an older DMU80 CNC Machine and the Handheld Control was damaged beyond repair. MRO was very helpful in confirmin...

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