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Siemens 6SL3040-0PA00-0AA1

Rated 5/5 on 1 review

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DESCRIPTION: Control Unit Adapter CUA31


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2 Year warranty

Part Number6SL3040-0PA00-0AA1
Model #6SL30400PA000AA1
Warranty2 Year
GroupControl Unit Adaptor
Voltage24 VDC
For UsePM340/PM240
Rated0.6 Amps

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 6SL3040-0PA00-0AA1 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 6SL3040-0PA00-0AA1 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 6SL3040-0PA00-0AA1, 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 6SL3040-0PA00-0AA1 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 6SL3040-0PA00-0AA1 Overview

The Siemens 6SL3040-0PA00-0AA1 is a control unit adapter known as CUA31, designed and manufactured by Siemens, a globally recognized leader in automation and industrial technology solutions. The CUA31 is part of the SINAMICS product line, which offers a range of reliable and efficient drive systems for various industrial applications. 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 Controllers from other manufacturers such as FANUC and Yaskawa.

As a control unit adapter, the Siemens 6SL3040-0PA00-0AA1 serves as a vital component in power modules such as PM340 and PM240-2. Its primary function is to facilitate the connection and communication between the control unit and the power modules, enabling seamless operation and control of the drive system.

The control unit adapter is designed to handle a current of 0.6 Amps, making it suitable for low to moderate-power applications. It operates on a 24 VDC power supply, ensuring compatibility with standard industrial power systems. This voltage level is commonly used in automation and control systems, allowing for easy integration into existing setups.


One of the key features of the Siemens 6SL3040-0PA00-0AA1 is its robust construction and high-quality materials. Siemens is known for its commitment to delivering durable and reliable products, and the CUA31 is no exception. It is built to withstand harsh operating conditions, including temperature variations, vibrations, and electrical interference, ensuring long-term performance and reliability in demanding industrial environments.


In terms of functionality, the CUA31 provides seamless integration with the control unit and power modules, enabling efficient control and monitoring of the drive system. It supports various communication protocols, allowing for flexible and versatile connectivity options. This ensures compatibility with different automation systems and facilitates easy integration into existing industrial setups.


The Siemens 6SL3040-0PA00-0AA1 is designed to simplify the installation and commissioning process. It features user-friendly interfaces and intuitive controls, making it easy for technicians and engineers to configure and set up the drive system. This saves time and effort during the initial setup phase, allowing for faster deployment and reduced downtime.

Additionally, the CUA31 offers advanced diagnostic capabilities, providing real-time monitoring and reporting of system performance. This allows for proactive maintenance and troubleshooting, minimizing unexpected downtime and maximizing productivity. The control unit adapter is also designed to support firmware updates, ensuring compatibility with future system upgrades and enhancements.

In summary, the Siemens 6SL3040-0PA00-0AA1 control unit adapter, part of the SINAMICS product line, is a reliable and efficient solution for integrating control units with power modules. Its robust construction, compatibility with standard power systems, and advanced features make it a valuable component in industrial drive systems. With Siemens' reputation for quality and innovation, the CUA31 provides a reliable and flexible solution for a wide range of 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 6SL3040-0PA00-0AA1, take a look at more from our Controllers 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 6SL3040-0PA00-0AA1 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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Over 1700 Ratings from Actual Customers

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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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