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Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.


Product Description
The Siemens 6SE6400-3CC00-4AB3 MICROMASTER 440 is a robust and versatile frequency inverter engineered for demanding industrial applications. This drive delivers precise motor speed control and enhanced process optimization across a wide range of voltages and power ratings. It features advanced vector control for superior motor performance, even at low speeds, and boasts integrated protection functions safeguarding both the drive and the connected motor from overloads, short circuits, and other electrical faults. The MICROMASTER 440s user-friendly interface and parameterization software simplify commissioning and maintenance, while its modular design allows for flexible adaptation to specific application requirements. It is a reliable solution for achieving increased efficiency, reduced energy consumption, and improved overall system performance in diverse industrial environments.
Technical specifications
The Siemens 6SE6400-3CC00-4AB3 MICROMASTER 440 is a high-performance vector control inverter designed for sophisticated drive applications requiring precise speed and torque control. This unit operates on a three-phase 380-480V AC power supply and delivers a rated output current of 4.2A with a power rating of 2.2kW (3HP), suitable for controlling motors in a variety of industrial environments. The MICROMASTER 440 features advanced control techniques, including sensorless vector control and closed-loop feedback options, ensuring optimal motor performance under varying load conditions. Integrated functionalities such as programmable digital and analog inputs/outputs, comprehensive protection features (overload, overvoltage, undervoltage, short-circuit), and a user-friendly operator panel facilitate seamless integration and operation within complex automation systems. Communication options, including PROFIBUS and other fieldbus interfaces, enable efficient data exchange and remote monitoring capabilities, enhancing overall system control and diagnostics. The robust design and comprehensive functionality of the 6SE6400-3CC00-4AB3 ensure reliable and efficient motor control for demanding industrial applications.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

Ships from Rochester, NY