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Siemens 6SL3120-1TE21-0AA4

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Part Number6SL3120-1TE21-0AA4
TypeAC Drives
Model #6SL31201TE210AA4
Warranty2 Year
DescriptionSingle motor module
Rated current 9 A
Input voltage600 V DC
Output voltage400 V AC
Protection IP20
Input frequency50 Hz
CoolingInternal air
Integrated safetyDRIVE-CLIQ CABLE

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 6SL3120-1TE21-0AA4 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 6SL3120-1TE21-0AA4 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 6SL3120-1TE21-0AA4, 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 : 11lbs

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Ask about exchanging your faulty 6SL3120-1TE21-0AA4 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 6SL3120-1TE21-0AA4 Overview

The Siemens 6SL3120-1TE21-0AA4: Pioneering Efficiency and Precision in Drive Technology

In the dynamic world of industrial automation, the Siemens 6SL3120-1TE21-0AA4 stands out in drive technology. As a creation of Siemens, a global powerhouse in industrial engineering and technology, this single motor module from the SINAMICS S120 series represents a testament to cutting-edge design and engineering excellence. With a focus on optimizing efficiency, performance, and reliability, the 6SL3120-1TE21-0AA4 is a cornerstone of modern industrial processes.


At its core, the 6SL3120-1TE21-0AA4 is a single motor module designed to provide seamless control and power management for a variety of industrial applications. Its compatibility with both 600VDC and 400VAC power sources demonstrates Siemens' commitment to versatility, ensuring that manufacturers can integrate this module into a wide range of setups without the need for extensive modifications.

Efficiency is a guiding principle behind the design of the 6SL3120-1TE21-0AA4. In the modern manufacturing landscape, energy efficiency is a paramount concern. Siemens has addressed this by incorporating advanced power management and control features into the module. This not only reduces energy consumption but also extends the operational life of connected motors and machinery, resulting in significant cost savings over the long term.


One of the standout features of the 6SL3120-1TE21-0AA4 is its ability to handle a current of up to 9A. This high current-handling capability empowers the module to drive motors with significant power requirements, making it well-suited for applications that demand substantial torque and speed control. From heavy machinery to intricate precision systems, the module's ability to deliver precise and adjustable power ensures that it remains a reliable workhorse across various industries.

The integration of the 6SL3120-1TE21-0AA4 within the SINAMICS S120 family underlines its position as a flagship product within Siemens' drive technology lineup. SINAMICS S120 is renowned for its advanced capabilities and comprehensive range of solutions for motion control and drive applications. By aligning with the SINAMICS S120 series, the module inherits a legacy of excellence and a track record of performance that has set industry benchmarks.


The 6SL3120-1TE21-0AA4 is more than just a component; it is a gateway to streamlined industrial processes. Its integration into existing automation systems is facilitated by its compatibility with various communication protocols. This seamless connectivity empowers manufacturers with real-time data exchange, remote diagnostics, and the ability to fine-tune performance parameters on the fly. Such capabilities are invaluable in today's fast-paced manufacturing environments, where adaptability and responsiveness are key to staying competitive.


Siemens' commitment to user-friendliness is evident in the design and configuration of the 6SL3120-1TE21-0AA4. The module is equipped with intuitive interfaces and software tools that simplify setup and maintenance tasks. This reduces the learning curve for technicians and engineers, enabling them to focus on optimizing processes rather than grappling with complex programming.

In terms of reliability and durability, the 6SL3120-1TE21-0AA4 upholds Siemens' reputation for robust and resilient engineering. The module is built to withstand the rigors of industrial environments, including temperature fluctuations, vibrations, and demanding operating conditions. Its sturdy construction translates to minimized downtime and reduced maintenance requirements, contributing to increased overall operational efficiency.

In conclusion, the Siemens 6SL3120-1TE21-0AA4 exemplifies the pinnacle of drive technology and automation solutions. Its versatility, efficiency, and integration within the SINAMICS S120 series make it a pivotal component in achieving precision control, optimal energy usage, and enhanced performance in industrial processes.

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.

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 6SL3120-1TE21-0AA4, 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 6SL3120-1TE21-0AA4 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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