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2-year Warranty

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Siemens 6SL3120-2TE21-8AA0

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2 Year warranty

Part Number6SL3120-2TE21-8AA0
TypeAC Drives
Model #6SL31202TE218AA0
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 6SL3120-2TE21-8AA0 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 6SL3120-2TE21-8AA0 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 6SL3120-2TE21-8AA0, 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 : 19lbs

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Ask about exchanging your faulty 6SL3120-2TE21-8AA0 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 6SL3120-2TE21-8AA0 Overview

The Siemens 6SL3120-2TE21-8AA0 is a SINAMICS S120 single-axis servo drive, part of Siemens' extensive range of motion control solutions. Here's an overview, description, specifications, installation guidelines, similar products, and frequently asked questions (FAQs) about the 6SL3120-2TE21-8AA0:


The 6SL3120-2TE21-8AA0 is a high-performance servo drive designed for precise motion control applications in various industries, including manufacturing, packaging, and robotics. It offers advanced dynamic positioning and speed control features, making it suitable for demanding automation tasks.


The Siemens 6SL3120-2TE21-8AA0 servo drive is part of the SINAMICS S120 family, known for its flexibility, reliability, and scalability. It supports various motor types, including synchronous and asynchronous motors, allowing for versatile application possibilities. The drive has integrated safety functions and communication interfaces for seamless integration into automation systems.


  • Model: 6SL3120-2TE21-8AA0
  • Voltage: 600V DC output
  • Control Modes: Position, speed, torque
  • Communication Interfaces: PROFIBUS, PROFINET, EtherNet/IP
  • Integrated Safety Functions include STO (Safe Torque Off), SS1 (Safe Stop 1), and SBC (Safe Brake Control)
  • Weight: 16lbs


Installation of the 6SL3120-2TE21-8AA0 servo drive involves mounting it securely to a suitable surface within the control cabinet using a DIN rail or mounting brackets. Wiring connections should be made according to the provided wiring diagrams and guidelines. Proper grounding and shielding practices should be followed to ensure reliable operation and compliance with safety standards.

Similar Products:

  • Siemens SINAMICS S120 servo drives with different power ratings and communication options (e.g., 6SL3120-1TE21-8AA0, 6SL3120-1TE24-5AA3)
  • Allen-Bradley Kinetix servo drives
  • Mitsubishi Electric MR-J4 series servo drives


  1. What types of motors are compatible with the 6SL3120-2TE21-8AA0 servo drive?
  2. The 6SL3120-2TE21-8AA0 supports various motor types, including synchronous motors (permanent magnet motors) and asynchronous motors (induction motors), allowing for flexibility in motor selection based on application requirements.
  3. What are the key advantages of using the SINAMICS S120 servo drive?
  4. The SINAMICS S120 offers high performance, advanced motion control features, and seamless integration into Siemens automation environments. It also provides extensive diagnostic capabilities and integrated safety functions for enhanced system reliability and safety.
  5. Can the 6SL3120-2TE21-8AA0 communicate with PLCs and other devices?
  6. The 6SL3120-2TE21-8AA0 supports various communication interfaces, including PROFIBUS, PROFINET, and EtherNet/IP, enabling communication with PLCs, HMIs, and other automation devices for coordinated control and monitoring.
  7. What safety functions are integrated into the 6SL3120-2TE21-8AA0 servo drive?
  8. The 6SL3120-2TE21-8AA0 features integrated safety functions such as STO (Safe Torque Off), SS1 (Safe Stop 1), SBC (Safe Brake Control), and more, providing protection against hazardous motion and ensuring compliance with safety standards.
  9. Is the 6SL3120-2TE21-8AA0 suitable for use in harsh industrial environments?
  10. The 6SL3120-2TE21-8AA0 is designed to operate reliably in demanding industrial environments, with robust construction and protection against environmental factors such as dust, humidity, and temperature variations.

Always refer to the product documentation and manufacturer's guidelines for accurate and up-to-date information regarding the Siemens 6SL3120-2TE21-8AA0 servo drive.

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 6SL3120-2TE21-8AA0, 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 6SL3120-2TE21-8AA0 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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Conley Cooke

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


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