Free Shipping Across the USA — Worldwide Delivery Available!
PALM Parts Solution
AccountQuote
In Stock Fast Shipping Available
SIEMENS 6SE6440-2UD21-5AA1 MICROMASTER 440 AC Frequency Inverter for industrial motor control

*Image shown is a representation only. Actual product may vary.

SIEMENS 6SE6440-2UD21-5AA1

by Siemens

Read verified buyer reviews ↓

OverviewElevate your industrial operations with the SIEMENS 6SE6440-2UD21-5AA1 MICROMASTER 440 Frequency Inverter. This robust AC drive delivers unparalleled variable speed control for a wide array of industrial motors, making it an indispensable component for optimizing operational efficiency and precision. Engineered with Siemens' renowned quality, the 6SE6440-2UD21-5AA1 combines advanced functionality with built-in safety features, ensuring reliable performance in the most demanding environments. From dynamic braking to multiple sophisticated control modes, this drive is meticulously designed to meet the complex requirements of modern manufacturing and process control. Experience enhanced motor performance, reduced power consumption, and improved system reliability with this cutting-edge solution.Key Features Precise Motor Control: Achieve optimal speed and torque regulation for industrial motors, leading to enhanced process accuracy and reduced wear. Integrated Dynamic Braking: Equipped with an internal braking chopper, allowing for rapid and controlled stopping of motors, crucial for safety and operational efficiency. Versatile Control Modes: Supports V/f, Sensorless Vector Control (SVC), and Closed-Loop Control, offering flexibility to adapt to diverse application needs. Robust Power Rating: Delivers 1.5 kW (2 HP) of power, suitable for a range of medium-duty industrial motor applications. Wide Input Voltage Compatibility: Operates efficiently with 380-480V AC, three-phase input, ensuring compatibility with standard industrial power supplies. Advanced Safety Functions: Features STO (Safe Torque Off) for secure operation, safeguarding personnel and equipment during critical events. Seamless Communication: Integrated PROFIBUS and analog/digital interfaces facilitate easy integration into existing automation networks. Technical Specifications Series: MICROMASTER 440 Product Type: AC Frequency Inverter Model Number: 6SE6440-2UD21-5AA1 Power Output: 1.5 kW (2 HP) Input Voltage: 380-480V AC, three-phase Control Type: Vector and V/f control Mounting Type: Panel or wall-mounted Protection Rating: IP20 Applications Conveying Systems: Provides precise speed control for conveyors, optimizing material flow and handling in logistics and manufacturing. Pumping and Fan Systems: Enables energy-efficient operation of pumps and fans by adjusting motor speed according to demand, reducing electricity consumption. Precision Manufacturing: Enhances control in production lines, delivering accurate motion for critical processes and improving product quality. Industrial Automation: Integrates seamlessly into complex automation systems, offering reliable motor control for various machine applications. Textile Machinery: Offers the precision and control needed for intricate textile manufacturing processes, ensuring consistent output. Why Choose Unmatched Precision: The MICROMASTER 440 series is renowned for its exceptional motor control accuracy, empowering your systems with pinpoint precision. Enhanced Safety: With built-in STO and dynamic braking, this drive prioritizes operational safety, protecting both your workforce and valuable equipment. Energy Efficiency: By enabling variable speed control, the Siemens 6SE6440-2UD21-5AA1 significantly reduces power consumption, leading to substantial energy savings and a greener footprint. Rugged Reliability: Designed for demanding industrial environments, this drive offers robust construction and proven Siemens engineering for long-term, dependable performance. Seamless Integration: Its multiple communication interfaces ensure effortless integration into your existing or new automation infrastructure, simplifying setup and operation. Long-Term Value: Investing in a Siemens MICROMASTER 440 means investing in a durable, high-performance solution that offers a strong return through increased productivity and reduced maintenance. Order NowOptimize your industrial processes with the SIEMENS 6SE6440-2UD21-5AA1 MICROMASTER 440 Frequency Inverter. Improve precision, enhance safety, and achieve significant energy savings today.FAQQ: What is the power output of the SIEMENS 6SE6440-2UD21-5AA1?A: The SIEMENS 6SE6440-2UD21-5AA1 delivers a robust power output of 1.5 kW (2 HP).Q: What types of motor control does this inverter support?A: This inverter supports versatile control modes, including V/f, Sensorless Vector Control (SVC), and Closed-Loop Control, offering flexibility for diverse applications.Q: Can this drive be integrated into existing automation networks?A: Yes, with integrated PROFIBUS and analog/digital interfaces, the SIEMENS 6SE6440-2UD21-5AA1 facilitates easy integration into current automation networks.

🇺🇸 Ships from our Florida warehouse
1-Year PALM Parts Warranty
CONDITION
$441.00
22 in stock

USA — Free FedEx Priority & UPS Ground · Worldwide shipping available

For more quantity please contact Customer Service

Experts Available 24/7 · 365
+1 (689) 263-1985
sales@palmpartssolution.com

Fast Shipping

Dispatched quickly on in-stock items via UPS, FedEx & DHL worldwide.

Availability

Thousands of parts in stock — ready for immediate dispatch from Florida.

Payment Flexibility

AMEX, Visa, MasterCard, PayPal, Discover and wire transfer accepted.

PRODUCT DETAILS

SIEMENS 6SE6440-2UD21-5AA1

Overview

This is a genuine Siemens component from the Variable Frequency Drives family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem
  • Engineered to integrate inside Variable Frequency Drives installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes for the Variable Frequency Drives family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Series: MICROMASTER 440
  • Product Type: AC Frequency Inverter
  • Model Number: 6SE6440-2UD21-5AA1
  • Power Output: 1.5 kW (2 HP)
  • Input Voltage: 380-480V AC, three-phase
  • Control Type: Vector and V/f control
  • Mounting Type: Panel or wall-mounted
  • Protection Rating: IP20

Applications

  • Conveying Systems: Provides precise speed control for conveyors, optimizing material flow and handling in logistics and manufacturing.
  • Pumping and Fan Systems: Enables energy-efficient operation of pumps and fans by adjusting motor speed according to demand, reducing electricity consumption.
  • Precision Manufacturing: Enhances control in production lines, delivering accurate motion for critical processes and improving product quality.
  • Industrial Automation: Integrates seamlessly into complex automation systems, offering reliable motor control for various machine applications.
  • Textile Machinery: Offers the precision and control needed for intricate textile manufacturing processes, ensuring consistent output.

Why Choose the 6SE6440-2UD21-5AA1?

  • Unmatched Precision: The MICROMASTER 440 series is renowned for its exceptional motor control accuracy, empowering your systems with pinpoint precision.
  • Enhanced Safety: With built-in STO and dynamic braking, this drive prioritizes operational safety, protecting both your workforce and valuable equipment.
  • Energy Efficiency: By enabling variable speed control, the Siemens 6SE6440-2UD21-5AA1 significantly reduces power consumption, leading to substantial energy savings and a greener footprint.
  • Rugged Reliability: Designed for demanding industrial environments, this drive offers robust construction and proven Siemens engineering for long-term, dependable performance.
  • Seamless Integration: Its multiple communication interfaces ensure effortless integration into your existing or new automation infrastructure, simplifying setup and operation.
  • Long-Term Value: Investing in a Siemens MICROMASTER 440 means investing in a durable, high-performance solution that offers a strong return through increased productivity and reduced maintenance.

Availability & Shipping

  • In stock: 6SE6440-2UD21-5AA1 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 6SE6440-2UD21-5AA1 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

A: The SIEMENS 6SE6440-2UD21-5AA1 delivers a robust power output of 1.5 kW (2 HP).

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

What Verified Buyers Say

No reviews yet for this product. Be the first verified buyer to share your experience — we email a review invitation after every purchase.

Independent Supplier Notice

PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

Are you an Electrical Distributor?Learn more about our distributor program

PALM Parts Solution sells used surplus products. PALM Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PALM Parts Solution come with PALM Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

Read full disclaimer →