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2-year Warranty

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Siemens 6SE6440-2UD23-0BA1

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2 Year warranty

Part Number6SE6440-2UD23-0BA1
TypeAC Drives
Model #6SE64402UD230BA1
Warranty2 Year
Input phase3 AC
Frequency47 ... 63 Hz
Rated current (HO)10.00 A
Digital inputs3
Relay output6
Analog inputs2
Analog outputs 2
ProtectionIP20 / UL open type
Power factor λ0.95
Efficiency η0.96
Rated voltage480 V
Pulse frequency4000 Hz
Rated power (HO)3.00 kW / 4.00 hp
Rated current (HO)7.70 A
Height202.0 mm
Width149.0 mm
Depth172.0 mm
Ambient temperature-10 ... 50 °C

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 6SE6440-2UD23-0BA1 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 6SE6440-2UD23-0BA1 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 6SE6440-2UD23-0BA1, 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.

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Ask about exchanging your faulty 6SE6440-2UD23-0BA1 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 6SE6440-2UD23-0BA1 Overview

Siemens 6SE6440-2UD23-0BA1

The Siemens 6SE6440-2UD23-0BA1, a part of the MICROMASTER 440 series, is a versatile and advanced drive designed to meet the demands of various industrial applications. This compact drive is known for its robust features, high efficiency, and a broad range of capabilities, making it a reliable choice for motor control in diverse settings.

MLFB-Ordering Data and Rated Data:

The Motor List for Function Blocks (MLFB) code 6SE6440-2UD23-0BA1 is a unique identifier for this specific configuration within the MICROMASTER 440 series. The drive boasts a rated power of 3.00 kW (4.00 hp), operating at 480 volts. Its versatility is further highlighted by a wide frequency range, supporting operations from 47 to 63 Hz and output frequencies up to 650 Hz for variable frequency control.

Ambient Conditions and General Technical Specifications:

Operating within a temperature range of -40 to 70 °C, the MICROMASTER 440 demonstrates resilience in extreme conditions. With a power factor of 0.95 and an impressive efficiency of 0.96, it ensures optimized power utilization, contributing to energy savings and system reliability. The drive supports high overload (HO) capabilities, allowing for 150% output current for 60 seconds and 100% output current for 240 seconds in a 300-second cycle time.

Input and Output Specifications:

The MICROMASTER 440 accommodates three phases for both input and output, operating in the voltage range of 380 to 480 V with a ±10% tolerance. It supports a frequency range of 47 to 63 Hz for input and 0 to 650 Hz for output, providing flexibility in various industrial setups.

Overload Capability and Cooling:

With an impressive overload capability, the MICROMASTER 440 can handle 150% of the output current for 60 seconds, emphasizing its capability to manage peak loads efficiently. The cooling is facilitated by a fan, ensuring optimal operating temperatures and enhancing the drive's reliability in prolonged usage.

Mechanical Data:

The MICROMASTER 440 features a compact design with dimensions of 172.0 mm (height), 149.0 mm (depth), and 202.0 mm (width). With a net weight of 3.30 kg, it strikes a balance between robustness and portability. The drive adheres to a degree of protection IP20/UL open type, providing adequate shielding against environmental factors.

Digital and Analog Inputs/Outputs:

Equipped with six standard digital inputs and three standard digital outputs, the drive offers versatility in interfacing with external devices. Additionally, it includes two relay outputs and two analog inputs, enhancing its connectivity options for diverse control configurations.

Frequently Asked Questions (FAQ) About Siemens 6SE6440-2UD23-0BA1 MICROMASTER 440 Drive

Q1: What does the MLFB code "6SE6440-2UD23-0BA1" signify for the MICROMASTER 440 series?

A1: The MLFB code is a Motor List for Function Blocks identifier specific to this configuration within the MICROMASTER 440 series. It serves as a unique reference for ordering and identifying this particular drive.

Q2: What is the significance of the wide frequency range supported by the MICROMASTER 440?

A2: The wide frequency range, from 47 to 63 Hz for input and 0 to 650 Hz for output, enhances the drive's flexibility. It accommodates diverse industrial setups, making it suitable for applications with varying frequency requirements.

Q3: How does the MICROMASTER 440 handle overloads, and what is the significance of the 150% output current capability?

A3: The MICROMASTER 440 has a high overload capability, allowing it to handle 150% of the output current for 60 seconds. This feature is beneficial for managing peak loads efficiently, ensuring reliable performance in demanding industrial scenarios.

Q4: Can the MICROMASTER 440 operate in extreme temperature conditions?

A4: Yes, the MICROMASTER 440 demonstrates resilience in extreme temperature conditions, with an operational range from -40 to 70 °C. This makes it suitable for applications in environments with varying temperatures.

Q5: What are the key input and output specifications of the MICROMASTER 440?

A5: The MICROMASTER 440 operates with three phases for both input and output, in the voltage range of 380 to 480 V with a ±10% tolerance. It supports a frequency range of 47 to 63 Hz for input and 0 to 650 Hz for output, providing versatility in industrial applications.

Q6: What is the significance of the fan in the cooling system of the MICROMASTER 440?

A6: The fan plays a crucial role in the cooling system of the MICROMASTER 440. It ensures optimal operating temperatures, contributing to the drive's reliability during prolonged usage.

Q7: What are the digital and analog input/output options available with the MICROMASTER 440?

A7: The MICROMASTER 440 features six standard digital inputs, three standard digital outputs, two relay outputs, and two analog inputs. This configuration provides versatility in interfacing with external devices and supports diverse control configurations.

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 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 6SE6440-2UD23-0BA1, 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 6SE6440-2UD23-0BA1 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.

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