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Siemens 6SE6420-2UD21-5AA1

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Part Number6SE6420-2UD21-5AA1
TypeAC Drives
Model #6SE64202UD215AA1
Warranty2 Year
Rated Input V380 ... 480 V ±10 %
Phase3 Phase
Input frequency47 ... 63 Hz
Rated input current4.90 A
Rated output V480 V
Rated output kW/hp1.10 kW / 1.50 hp
Output current3.00 A
Pulse frequency4000 Hz
Output frequency V/f control0 ... 650 Hz
Conductor cross-section2.50 mm²
Power factor λ0.95
Efficiency η0.96
Height173.0 mm
Depth149.0 mm
Width73.0 mm
Digital input3
Relay output1
Analog input1
Analog output1

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 6SE6420-2UD21-5AA1 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 6SE6420-2UD21-5AA1 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 6SE6420-2UD21-5AA1, 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.

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Ask about exchanging your faulty 6SE6420-2UD21-5AA1 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 6SE6420-2UD21-5AA1 Overview

Siemens 6SE6420-2UD21-5AA1 AC Drive: Efficient and Versatile Power Control

Siemens presents the 6SE6420-2UD21-5AA1, an advanced AC drive engineered to deliver precise and efficient power control across a wide range of applications. Designed for industrial environments, this model embodies Siemens' commitment to reliability, performance, and innovation.

Reliable Power Input

Operating within a voltage range of 380 to 480 volts with a tolerance of ±10%, this AC drive ensures stable power input, regardless of fluctuating conditions. With a three-phase configuration and an input frequency ranging from 47 to 63 Hz, it accommodates various power supply setups, offering adaptability and versatility in industrial settings.

Efficient Power Output

The 6SE6420-2UD21-5AA1 drives efficiency with its rated output voltage of 480 volts, generating 1.10 kW or 1.50 horsepower. Its output current of 3.00 A, coupled with a pulse frequency of 4000 Hz, enables precise control over power delivery, enhancing performance and productivity in diverse operational scenarios.

Flexible Frequency Control

Equipped with variable frequency control ranging from 0 to 650 Hz, this AC drive empowers users to tailor power output to specific requirements, whether for motor speed regulation or torque control. Its capability to handle different frequency demands ensures optimal performance across a spectrum of industrial applications.

Integrated Safety Features

Prioritizing operator safety, the 6SE6420-2UD21-5AA1 features IP20 protection, safeguarding against dust and other environmental hazards. This robust enclosure design ensures reliable operation in demanding industrial environments, enhancing longevity and safety.

Compact and Versatile Design

With dimensions of 173.0 mm (height), 149.0 mm (depth), and 73.0 mm (width), this AC drive boasts a compact form factor, making it suitable for installation in space-constrained settings. Despite its size, it offers a comprehensive array of connectivity options, including three digital inputs, one relay output, one analog input, and one analog output, facilitating seamless integration into existing control systems.

Optimized Performance Parameters

The 6SE6420-2UD21-5AA1 is engineered for optimal performance, with a conductor cross-section of 2.50 mm² ensuring efficient power transmission and minimal energy loss. Its power factor of 0.95 and efficiency rating of 0.96 underscores its commitment to energy efficiency, reducing operational costs and environmental impact.

FAQ for the Siemens 6SE6420-2UD21-5AA1

What types of industrial applications is the 6SE6420-2UD21-5AA1 suitable for?

This AC drive is designed to be versatile, making it suitable for a wide range of industrial applications such as conveyor systems, pumps, fans, compressors, and various machinery requiring precise speed and torque control.

Does the 6SE6420-2UD21-5AA1 offer any built-in protection features?

Yes, the AC drive comes with IP20 protection, guarding against dust and other environmental contaminants. Additionally, it may incorporate features such as overload protection and short circuit protection to ensure safe and reliable operation.

How easy is it to integrate the 6SE6420-2UD21-5AA1 into existing control systems?

Siemens has designed this AC drive with comprehensive connectivity options, including digital inputs, relay outputs, analog inputs, and analog outputs. These features facilitate seamless integration into existing control systems, simplifying installation and setup processes.

Can the 6SE6420-2UD21-5AA1 accommodate varying power supply conditions?

Yes, the AC drive is capable of operating within a voltage range of 380 to 480 volts with a tolerance of ±10%. This flexibility enables it to adapt to fluctuating power supply conditions commonly encountered in industrial environments.

What maintenance requirements does the 6SE6420-2UD21-5AA1 have?

Siemens designs its products with reliability and longevity in mind. While specific maintenance requirements may vary based on usage and environmental factors, regular inspections, and preventive maintenance measures are recommended to ensure optimal performance and extend the lifespan of the AC drive.

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 6SE6420-2UD21-5AA1, 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 6SE6420-2UD21-5AA1 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.

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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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