Receive a Text Quote
We will send you price and availability shortly
Invalid number. Please call (800) 691-8511
Looking for a fast quote? Click here, and we'll text you.

Siemens 6SE6420-2UD21-5AA1

Rated 5/5 on 2 reviews

Rate this product


DESCRIPTION: MM420 1.5 kW / 4.0 Amp A Frame 3 Phase 380/480V


5 in stock

Free Shipping

2 Year warranty

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.

  • Shipping Weight : 3lbs

Want it shipped tomorrow?

  • Order within the next 21 hours and 20 minutes.
  • If you order between 4pm and 6pm EST, you will be charged a small rush fee.

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

The Siemens 6SE6420-2UD21-5AA1 is a MICROMASTER 420 variable frequency drive (VFD) designed for use in a wide range of industrial applications. This VFD has a rated power of 1.5 kW (2 hp) and a rated voltage of 480 V, making it suitable for use with a variety of motors. In this description, we will discuss the various features and specifications of the 6SE6420-2UD21-5AA1 module in detail. 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.


Rated Data: The rated power of this VFD is 1.5 kW (2 hp), and it has a rated voltage of 480 V. The line voltage can range from 380 to 480 V, and the rated frequency is between 47 and 63 Hz. The output frequency for V/f control ranges from 0 to 650 Hz, making it highly flexible for use with different types of motors. The rated current at High Overload (HO) is 4 A, and the VFD has an overload capability of 150% output current for 60 seconds, followed by 100% output current for 240 seconds in a 300-second cycle time. The VFD has an efficiency of 0.96 and a power factor of 0.95.
Ambient Conditions: The operating temperature range for this VFD is -10 to 50 °C, and it can be stored at temperatures between -40 and 70 °C. It has a fan for cooling, which ensures that it operates at a safe temperature. The VFD has a degree of protection of IP20/UL open type, which means it is protected against solid objects larger than 12.5 mm and does not have protection against water.


General Technical Specifications: This VFD has three phases, which makes it suitable for use with three-phase motors. The line frequency can range from 47 to 63 Hz, and the pulse frequency is 4000 Hz. It has a High Overload (HO) capability and is capable of providing up to 150% of the rated output current for 60 seconds.
Input: This VFD does not have any standard digital inputs or analog inputs.
Output: This VFD does not have any standard digital outputs or analog outputs.
Standard Digital Inputs: This VFD has one standard digital input, and it can handle up to three inputs/outputs.
Relay Output: The VFD has one relay output.
Analog Inputs: The VFD has one analog input.
Analog Outputs: The VFD has one analog output.
Mechanical Data: This VFD has a net weight of 1.00 kg and a frame size of FSA. It is 173.0 mm wide, 149.0 mm high, and 73.0 mm deep. The degree of protection for this VFD is IP20/UL open type.

Additional Info

Other Information: This VFD comes with various ordering data, such as the consignment number, item number, offer number, order number, project, and client order number. It is essential to note that the technical data provided in this data sheet are subject to change, and there may be discrepancies between calculated and rating plate values.

In conclusion, the Siemens 6SE6420-2UD21-5AA1 is a highly flexible and versatile VFD suitable for use in a wide range of industrial applications. It has various features such as a High Overload (HO) capability, an efficient cooling system, and a degree of protection of IP20/UL open type. These features and specifications make it ideal for use in applications that require precise speed control, high efficiency, and reliable performance.


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.

5 stars

4.9 Overall Satisfaction Rating

Over 1700 Ratings from Actual Customers

Read Our Reviews

Fast delivery and very good service.


Would use again. Received in timely manner.


Very happy with the overall service, delivery, communication and delivery,

Conley Cooke