Siemens 6SE6440-2AD27-5CA1

Siemens 6SE6440-2AD27-5CA1 Micromaster 440 — 10 HP AC Drive Overview

The Siemens 6SE6440-2AD27-5CA1, also listed as 6SE64402AD275CA1, is a Micromaster 440 variable frequency drive designed for reliable, high-performance motor control in demanding industrial environments. Rated at 7.5 kW (10 HP) with constant-torque capability and approximately 18.4–19 A output current, this C-Frame, 3-phase drive operates on 380–480 VAC mains at 47–63 Hz. Engineered for versatility and uptime, it supports applications from conveyors and mixers to pumps and fans, delivering precise speed regulation, robust protection features, and easy integration into plant control systems.

Power, Voltage, and Performance

Built for stable operation on 460 VAC class systems, the Micromaster 440 provides smooth acceleration, deceleration, and torque delivery across a wide speed range. Vector control enhances dynamic response and load holding, while built-in protective functions help safeguard motors and downstream equipment. With constant-torque performance up to its 10 HP rating, the 6SE6440-2AD27-5CA1 is well suited for heavy starting loads and frequent start/stop cycles standard in material handling and process equipment.

Control, Interfaces, and Operation

This drive ships W/O AOP/BOP (without Advanced/Basic Operator Panel), allowing you to select the exact interface you prefer. Parameterization can be performed via an add-on keypad, PC software, or fieldbus modules, depending on your setup. Standard I/O supports typical control schemes, while optional communication expands connectivity to PLCs and SCADA systems. The IP20 enclosure is ideal for mounting inside a protected control cabinet and offers straightforward wiring and maintenance access.

Reliability and Lifecycle Status

The 6SE6440-2AD27-5CA1 is part of the proven Micromaster 440 family known for long service life and dependable performance. Although the manufacturer has discontinued this specific catalog number since January 10, 2019, it remains a trusted replacement option in ongoing operations. Units are immediately available with free shipping and a 2-year warranty, simplifying urgent maintenance and minimizing downtime.

Typical Applications and Benefits

Industrial users rely on the Micromaster 440 to improve process consistency, reduce mechanical stress, and cut energy use through variable speed control. Whether driving conveyors that require stable low-speed torque or pumps that benefit from soft starting and speed trimming, this model offers the control precision and ruggedness needed on the plant floor. Rapid availability, comprehensive warranty coverage, and familiar Siemens parameter structure make commissioning and long-term support straightforward for maintenance teams.

Key Specifications at a Glance

Model: Siemens 6SE6440-2AD27-5CA1 / 6SE64402AD275CA1. Power: 7.5 kW (10 HP). Output Current: ~18.4–19 A with constant torque. Input: 3-phase, 380/480 VAC, 47–63 Hz. Frame: C Frame, IP20 enclosure. Family: Micromaster 440 AC Drive. Operator Panel: Ships without AOP/BOP. Availability: Immediately available with free shipping and a 2-year warranty.

Is this drive new or refurbished?

Units are supplied from reliable stock; condition details are provided at order time, and every unit includes a 2-year warranty for peace of mind.

Does it include an operator panel?

No. This listing is W/O AOP/BOP. You can add a Basic or Advanced Operator Panel separately or configure it via software.

What motor types can it control?

It is designed for standard three-phase induction motors and supports vector control for improved torque and speed regulation.

Can I use it on a 460 VAC system?

Yes. The drive is rated for 3-phase 380–480 VAC mains, making it suitable for 460 VAC installations.

What enclosure rating does it have?

IP20, intended for installation inside a protected control cabinet or enclosure.

Is the product still manufactured by Siemens?

No. The manufacturer has discontinued it since January 10, 2019, but qualified replacements are in stock and ready to ship.

What is the horsepower and current rating?

It is a 10 HP (7.5 kW) drive with approximately 18.4–19 A output current at constant torque.

How quickly can I get it?

It is immediately available with free shipping, helping you reduce downtime.

What warranty is included?

A full 2-year warranty covers parts and performance for confidence in long-term operation.

Which applications is it best for?

Ideal for conveyors, mixers, pumps, fans, and other constant-torque or variable-torque loads needing precise speed control.

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 the 6SE6440-2AD27-5CA1

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 6SE6440-2AD27-5CA1, 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 6SE6440-2AD27-5CA1 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.