Siemens 6SE3221-3DC40

Reliable Motor Control with Siemens MICROMASTER 6SE3221-3DC40

The Siemens 6SE3221-3DC40 is a robust and efficient AC drive from the popular MICROMASTER vector control series. Designed to handle demanding industrial applications, this drive delivers precise control and stable performance across various motor-driven systems. With a 7.5 HP (5.5 kW) output and an operating voltage range of 380–500 VAC, the 6SE3221-3DC40 supports 50 Hz and 60 Hz frequencies, making it a flexible and universal solution for three-phase motor installations.

Built to manage dynamic speed and torque adjustments, the drive features vector control functionality that ensures accuracy even in applications requiring precise motor response. Whether for conveyors, pumps, fans, or machine tools, this drive's intelligent motor regulation improves energy efficiency and reduces mechanical stress on the system.

Designed for Demanding Industrial Environments

The MICROMASTER VECTOR MMV550/3 model, represented by part number 6SE3221-3DC40, offers 11.8 amps of output current, making it well-suited for medium-duty motor tasks. Housed in an IP20-rated enclosure, it's ideal for control panel integration and environments where protected cabinet mounting is used. The IP20 rating helps prevent contact with live components and offers limited dust protection, aligning with typical factory and plant conditions.

One of the strengths of the Siemens MICROMASTER drive line is reliability. The 6SE3221-3DC40 is no exception, offering solid durability and consistent motor performance under variable load conditions. As part of Siemens' trusted family of industrial automation products, this drive meets the expectations of system integrators, OEMs, and maintenance teams looking for stable, scalable motor control solutions.

In Stock and Ready to Ship from MRO Electric

At MRO Electric and Supply, the Siemens 6SE3221-3DC40 is in stock and ready for immediate shipment. Customers benefit from a 2-year warranty, free shipping, and expert technical support from our knowledgeable sales team. We ensure you receive genuine Siemens parts with fast delivery and a hassle-free buying experience. Our dedicated staff is ready to assist you with urgent needs or compatibility questions.

Frequently Asked Questions – Siemens 6SE3221-3DC40

What is the power output of the 6SE3221-3DC40?

The drive delivers 5.5 kW or 7.5 horsepower, suitable for mid-range motor applications.

What voltage range does it support?

It operates on 380 to 500 VAC, three-phase input.

Is the drive suitable for both 50Hz and 60Hz power supplies?

Yes, the drive is designed to function with both 50 and 60 Hz frequencies.

What is the IP rating of this drive?

The enclosure has an IP20 rating appropriate for control cabinets and low-dust areas.

What type of control does the drive offer?

It provides vector control, enabling precise speed and torque regulation.

Is the drive compatible with MICROMASTER accessories?

Yes, it integrates with other Siemens MICROMASTER components and accessories.

What kind of applications is this drive best suited for?

It's ideal for fans, pumps, conveyors, and general industrial motor control systems.

What is the unit's output current?

The drive provides 11.8 amps of current.

Is this product currently available?

Yes, MRO Electric has this model in stock and ready to ship.

Does it come with a warranty?

Yes, it includes a 2-year MRO Electric warranty and free shipping.

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 HMIs 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 sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6SE3221-3DC40, take a look at more from our HMIs 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 6SE3221-3DC40 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.