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2-year Warranty

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Siemens 6SE6440-2UD21-5AA1

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2 Year warranty

Part Number6SE6440-2UD21-5AA1
TypeAC Drives
Model #6SE64402UD215AA1
Warranty2 Year
CategoryAC drive
Voltage rating380-480 V AC
Power rating1.5 kW
Frequency47-63 Hz

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 6SE6440-2UD21-5AA1 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 6SE6440-2UD21-5AA1 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 6SE6440-2UD21-5AA1, 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.

  • Shipping Weight : 3lbs

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Ask about exchanging your faulty 6SE6440-2UD21-5AA1 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 6SE6440-2UD21-5AA1 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 AC Drives from other manufacturers such as FANUC and Yaskawa.

The Micromaster 440: A Versatile and Reliable AC Drive

The 6SE64402UD215AA1 AC Drive, known as the Micromaster 440, stands as a shining example of precision and reliability. This drive, crafted without a filter, has earned its reputation for delivering unwavering torque, positioning it as a preferred choice for a myriad of industrial applications.

Versatility in Industrial Applications

The Micromaster 440's versatility is a defining characteristic, allowing it to seamlessly adapt to a wide spectrum of industrial applications. Sporting a robust power rating of 1.5 kW, this drive exhibits an innate capability to handle diverse motor-driven processes. From straightforward conveyor systems to intricate machinery, it finds its place. Moreover, its compatibility with a broad voltage range of 380-480 VAC and three-phase power supply ensures that it integrates seamlessly into a variety of electrical systems.

Constant Torque Control: The Heart of Reliability

One of the most impressive features of the Micromaster 440 is its remarkable ability to maintain constant torque. This quality makes it an ideal companion for tasks demanding consistent force or power application. Regardless of fluctuating load conditions, it promises reliable motor operation. Consequently, it is a preferred choice for various activities, including material handling, milling, and extrusion.

Flexible Frequency Range: Adapting to Your Needs

The drive's frequency range of 47-63 Hz is a testament to its flexibility and adaptability. It accommodates various operational demands with ease. Whether precision at low frequencies is necessary for tasks like slow-speed mixing or high-frequency agility is vital for endeavors like cutting and drilling, the Micromaster 440 is up to the task. Its frequency adjustment capability ensures optimal motor performance across a spectrum of industrial environments.

IP20 Enclosure Rating: Basic Protection for Dependability

Featuring an IP20 enclosure rating, the Micromaster 440 adds a layer of protection to its robust design. This rating signifies basic shielding against solid objects such as fingers and tools, although it remains unsealed against liquids. While it might not be suited for environments prone to excessive dust or moisture, its compact and efficient design facilitates easy integration into control cabinets or electrical enclosures, ensuring dependable performance.

Energy Efficiency and Savings: Sustainability in Action

Beyond its precision control capabilities, the Micromaster 440 has been meticulously crafted with energy efficiency in mind. Utilizing advanced control algorithms optimizes motor performance, potentially resulting in substantial energy savings over time. Not only does this reduce operational costs, but it also contributes to a more sustainable and environmentally conscious operation, aligning with modern industry trends.

In Conclusion: A Beacon of Reliability and Performance

The Micromaster 440, also known as the 6SE64402UD215AA1 AC Drive, stands as a pinnacle of reliability and performance in the industrial landscape. Its unwavering torque control, adaptability to a wide voltage and frequency range, and energy-efficient operation make it an invaluable asset across diverse industrial settings. Whether tasked with controlling conveyor belts, pumps, fans, or other motor-driven equipment, this drive offers the precision, adaptability, and dependability required to meet specific operational demands. With its robust design and versatility, it proudly serves as a trusted cornerstone in industrial automation and control 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 6SE6440-2UD21-5AA1, take a look at more from our AC Drives 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 6SE6440-2UD21-5AA1 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

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...

Abbey-Purchasing Specialist