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Siemens 6FC5372-0AA30-0AB0

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2 Year warranty

Part Number6FC5372-0AA30-0AB0
Model #6FC53720AA300AB0
Warranty2 Year

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 6FC5372-0AA30-0AB0 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 6FC5372-0AA30-0AB0 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 6FC5372-0AA30-0AB0, 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 6FC5372-0AA30-0AB0 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 6FC5372-0AA30-0AB0 Overview

The Siemens part number 6FC5372-0AA30-0AB0 is an NCU (Numerical Control Unit) module designed for use in industrial automation systems. Manufactured by Siemens, a renowned provider of industrial automation solutions, this NCU module offers advanced features and functionality. In this article, we will explore the key details and benefits of the Siemens 6FC5372-0AA30-0AB0 NCU module. These 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 6FC5372-0AA30-0AB0 NCU module is specifically designed for use with the SINUMERIK 840D division, which is known for its high performance and precise control capabilities. This division encompasses advanced automation and control solutions, making it suitable for a wide range of industrial applications.


Categorized as an accessory, the 6FC5372-0AA30-0AB0 NCU module is an integral part of the overall automation system. It provides essential control and communication functions, enhancing the capabilities of the entire system.

The NCU module, with the specific model number 6FC53720AA300AB0, belongs to the SL NCU 720.3B category. This category denotes a specific variant within the SINUMERIK 840D division, indicating its compatibility and optimized performance with other components of the SINUMERIK system.

One of the notable features of the 6FC5372-0AA30-0AB0 NCU module is its interfaces, which include PN (Profinet) with PLC (Programmable Logic Controller) 317-3PN/DP. This interface configuration allows for seamless integration with other devices and components within the automation system, facilitating efficient data exchange and control.


The 6FC5372-0AA30-0AB0 NCU module comes with certain inclusions, namely a battery and a dual fan. The battery provides backup power, ensuring uninterrupted operation even in the event of a power outage. The dual fan setup helps in maintaining optimal operating temperatures, ensuring efficient heat dissipation and overall system performance.

MRO Electric stands behind the quality and reliability of the 6FC5372-0AA30-0AB0 NCU module by offering a 2-year warranty. 

In conclusion, the Siemens 6FC5372-0AA30-0AB0 NCU module is a crucial component in industrial automation systems. With its compatibility with the SINUMERIK 840D division, advanced interface capabilities, and inclusions such as the battery and dual fan, it provides enhanced control and communication functionalities. Overall, the 6FC5372-0AA30-0AB0 NCU module contributes to the efficient and reliable operation of industrial automation systems, making it a valuable addition to various industrial applications.

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 6FC5372-0AA30-0AB0, 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 6FC5372-0AA30-0AB0 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.

5 stars

4.9 Overall Satisfaction Rating

Over 1700 Ratings from Actual Customers

Read Our Reviews

Fast delivery and very good service.


Would use again. Received in timely manner.


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

Conley Cooke