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Siemens 6SL3120-1TE21-8AA3

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Part Number6SL3120-1TE21-8AA3
TypeAC Drives
Model #6SL31201TE218AA3
Warranty2 Year
Sinamics S120
Rated Output Current85 A
Rated Voltage510 … 720 V DC
Rated kW46 kW
Protection IP20

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 6SL3120-1TE21-8AA3 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 6SL3120-1TE21-8AA3 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 6SL3120-1TE21-8AA3, 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 6SL3120-1TE21-8AA3 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 6SL3120-1TE21-8AA3 Overview

The 6SL31201TE218AA3 is a specific model within the SINAMICS series of drives manufactured by Siemens. This particular model falls under the category of SINAMICS G120C, which is a compact and versatile drive system designed for various industrial applications. With its advanced features and high-performance capabilities, the 6SL31201TE218AA3 offers reliable motor control and energy efficiency. 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 AC Drives from other manufacturers such as FANUC and Yaskawa.


The 6SL31201TE218AA3 drive is suitable for controlling three-phase AC induction motors, making it ideal for a wide range of applications such as conveyor systems, pumps, fans, and compressors. It provides precise speed control, ensuring optimal performance and energy savings in industrial processes.


One of the notable features of the 6SL31201TE218AA3 is its compact size, which allows for easy installation in space-constrained environments. The drive's compact design does not compromise its performance, as it delivers exceptional power and torque output.


This model operates with an input voltage range of 380 to 480V AC, making it compatible with standard industrial power systems. It supports a frequency range of 47 to 63 Hz, accommodating different regional power supply variations. The 6SL31201TE218AA3 has a rated output current of 18A, enabling it to handle high-power applications efficiently.


In terms of motor control, the 6SL31201TE218AA3 offers several advanced functionalities. It supports open-loop vector control, allowing for precise torque and speed regulation. Additionally, it provides built-in braking chopper functionality, which enhances the drive's ability to handle rapid deceleration and regenerative energy. This feature contributes to energy efficiency and reduces stress on the motor.


The 6SL31201TE218AA3 drive incorporates comprehensive protective measures to ensure safe and reliable operation. It adheres to various international standards, including IEC and UL, guaranteeing compliance with global safety regulations. The drive's built-in protection mechanisms safeguard against overvoltage, undervoltage, overcurrent, and short circuits, providing reliable motor protection and preventing damage to the drive and connected equipment.


Installation and commissioning of the 6SL31201TE218AA3 are straightforward thanks to its user-friendly interface. The drive features a clear and intuitive graphical display, allowing users to easily navigate through menus and adjust parameters. It also supports communication interfaces such as PROFIBUS and PROFINET, enabling seamless integration into industrial automation systems.

Energy Efficiency

Furthermore, the 6SL31201TE218AA3 incorporates advanced energy-saving features. It utilizes Siemens' patented eco mode technology, which automatically adjusts the drive's operating parameters to optimize energy consumption based on the load demand. This feature contributes to significant energy savings and reduces the environmental impact of industrial processes.

FAQ: Siemens 6SL3120-1TE21-8AA3 AC Drive

Q: What is the Sinamics S120?

A: The Sinamics S120 is a high-performance AC drive system developed by Siemens, renowned for its precision control and versatility in industrial applications.

Q: What is the rated output current of the Siemens 6SL3120-1TE21-8AA3 AC drive?

A: The Siemens 6SL3120-1TE21-8AA3 AC drive boasts a rated output current of 85 A, allowing it to effectively drive motors and control industrial processes with high precision.

Q: What is the rated voltage range of the Siemens 6SL3120-1TE21-8AA3 AC drive?

A: The Siemens 6SL3120-1TE21-8AA3 AC drive operates within a rated voltage range of 510 to 720 V DC, providing compatibility with a wide range of industrial power systems.

Q: What is the rated power (kW) of the Siemens 6SL3120-1TE21-8AA3 AC drive?

A: The Siemens 6SL3120-1TE21-8AA3 AC drive boasts a rated power of 46 kW, making it suitable for driving motors and controlling industrial machinery with significant power requirements.

Q: What level of protection does the Siemens 6SL3120-1TE21-8AA3 AC drive offer?

A: The Siemens 6SL3120-1TE21-8AA3 AC drive is rated IP20, indicating its protection against solid foreign objects and providing reliable performance in industrial environments.

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 6SL3120-1TE21-8AA3, 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 6SL3120-1TE21-8AA3 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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