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Lenze EMB9343-E

Rated 5/5 on 1 review

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DESCRIPTION: 25.9 kW, Class 3K3 according to EN 60721−3−3

PRODUCT TYPE INFO: Regenerative power supply module 

1 in stock

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2 Year warranty

Part NumberEMB9343-E
TypePower Supplies
Model #EMB9343E
Warranty2 Year
Power range25.9 kW
Permissible temp ranges0 °C ... +50 °C +40 °C ... +50 °C
Vibration resistanceAccelerational stability up to 0.7 g
Degree of pollutionEN 61800−5−1 degree of pollution 2
ConformityCE, EAC
ApprovalsUL, UR
Climatic conditionsClass 3K3 according to EN 60721−3−3
Mounting positionVertical with power connection/top
Mains voltage range3/PE AC 320 V − 0 % ... 528 V + 0 %
Mains frequency48 Hz − 0 % ... 62 Hz + 0 %

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 EMB9343-E 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 EMB9343-E we also repair drives, motors, PLCs and more, 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 EMB9343-E, 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.

  • Shipping Weight : 35lbs

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Ask about exchanging your faulty EMB9343-E 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.

Lenze EMB9343-E Overview

The EMB9343-E is a high-performance regenerative power supply module manufactured by Lenze. It is designed to provide efficient and reliable power regeneration capabilities for various industrial applications. With a power range of up to 25.9 kW, the module is capable of handling substantial loads and effectively converting the braking energy of controllers into usable power that can be fed back to the mains. These products are manufactured in Germany and are designed for Automotive, packaging, and textile usage. They come with a 2-year warranty from MRO Electric. We also carry Power Supplies from other manufacturers such as ABB and FANUC.


One of the standout features of the EMB9343-E is its ability to connect multiple controllers via a DC-bus system. This arrangement not only simplifies the overall wiring of the system but also enables the central mains supply to be efficiently managed through the regenerative power supply module. By intelligently redistributing the generated power, the module contributes to increased energy efficiency and reduced power consumption.


The EMB9343-E module incorporates advanced technology to ensure seamless operation and optimal performance. It is equipped with automatic rotating field detection, enabling quick and accurate synchronization with the existing system. The module can also be easily synchronized with internal or external voltage sources, providing flexibility in system integration.

To maintain optimal operating conditions, the EMB9343-E features a temperature-controlled fan that ensures efficient cooling. This helps prevent overheating and guarantees reliable performance even in demanding industrial environments. The module also includes an LED display that provides clear and intuitive information about the operating state, allowing for quick diagnostics and troubleshooting.


Lenze has designed the EMB9343-E module with a focus on adaptability to different mains voltages. The module automatically adjusts the regenerative voltage threshold based on the mains voltage, ensuring compatibility and stability in diverse power supply environments. Additionally, the module incorporates comprehensive monitoring capabilities for mains voltage, mains frequency, DC-bus voltage, and temperature. These monitoring features provide real-time insights into the system's electrical parameters, enabling proactive maintenance and enhancing system reliability.


In terms of compliance and approvals, the EMB9343-E module adheres to the CE directives, including the Low Voltage Directive (2006/95/EC) and the EMC Directive (2004/108/EC). It also meets the requirements of the EAC (Eurasian Conformity) regulations, specifically the Technical Regulation of the Customs Union (TR CU 004/2011) for the safety of low voltage equipment and TR CU 020/2011 for electromagnetic compatibility of technical means. Additionally, the module has received UL (Underwriters Laboratories) and CSA (Canadian Standards Association) approvals, ensuring its suitability for use in the USA and Canada.


Electrically, the EMB9343-E module meets stringent electromagnetic compatibility (EMC) requirements specified in IEC 61800-3. When installed according to the demands of the CE-typical drive system, it complies with noise emission limits (limit class C2 to IEC 61800-3) and demonstrates excellent noise immunity. The module also possesses insulation resistance capabilities and discharges current specifications necessary for safe and reliable operation.

The EMB9343-E module is designed to operate in challenging environmental conditions. It conforms to Class 3K3 according to EN 60721-3-3, allowing it to function reliably without condensation within a wide temperature range of 5°C to 40°C. The module can withstand transportation and storage temperatures ranging from -25°C to +70°C and is rated for operation at altitudes up to 4000 meters above mean sea level.


For installation, the EMB9343-E module is intended to be mounted vertically, with the power connection located at the top. Adequate mounting clearances of 100 mm above and below the module are necessary to ensure proper ventilation and ease of maintenance. The module is encased in an IP20 enclosure, providing protection against accidental contact and complying with NEMA 250 type 1 standards.

The permissible mains types for the EMB9343-E module include mains with grounded neutral (TT/TN), while mains with isolated neutral (IT mains) or grounded phase conductors are not permitted. This ensures compatibility with a wide range of power distribution systems commonly found in industrial settings.

In summary, the EMB9343-E regenerative power supply module from Lenze offers impressive features and capabilities for efficient power regeneration in industrial applications. With its high power range, intelligent DC-bus system connectivity, and automatic synchronization, it provides a reliable and energy-efficient solution for managing braking energy and reducing overall power consumption.

Contact Us Today For More Information About Lenze Products

Check out the rest of our Lenze 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 EMB9343-E, take a look at more from our Power Supplies 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 EMB9343-E 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.

5 stars

4.9 Overall Satisfaction Rating

Over 1700 Ratings from Actual Customers

Read Our Reviews

Fast delivery and very good service.


Would use again. Received in timely manner.


Very happy with the overall service, delivery, communication and delivery,

Conley Cooke