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Control Techniques UNI3401

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  • 2 Year Warranty
Part NumberUNI3401
ManufacturerControl Techniques
TypeAC Drives
Warranty2 Year
Operating ModesOpen Loop
Closed Loop vector
Nominal Rating - kW15
Nominal Rating - hp25
Max. Continuous Output Current at 40°C ambient (A)
Max. Continuous Output Current at 50°C ambient (A)
Typical Input Current (A)32
Max. Continous Output Current (A)39
Minimum Resistance (Ω)10
Instantaneous Powe Rating (kW)60

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 UNI3401 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 UNI3401 we also repair a wide range of other Control Techniques 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 UNI3401, 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 : 65lbs

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Ask about exchanging your faulty UNI3401 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.

Control Techniques UNI3401 Overview

Unidrive 3401

The Unidrive 3401 is a size three mounted Control Techniques drive module with many features to help enhance the performance of your system.  These products are manufactured in the United Kingdom and are designed for Metal production, paper processing, and material conveying usage. They come with a 2-year warranty from MRO Electric. We also carry AC Drives from other manufacturers such as Siemens and Yaskawa.

Specifics for the Control Techniques 3401 Unidrive in Normal duty  include:

The maximum continuous output current for this module is 35 A, the nominal power at 400 V is 18.5 kW, and the motor power at 460 V is 25 hp. For this unit, the peak current is 38 A. 


Some of the features for this unit include a SMARTCARD slot, a keypad connection, a serial port connector, and an encoder connection. On the front right of the module, you will find the approvals label and the status LED. Under those features, you will find the solutions module slot one, and beneath that, you will find slots 2 and 3.  Finally, on the bottom right, you will find the control terminals and relay terminals. 

You can use either panel mounting or surface mounting. When this module is through-panel mounted, you must use a baffle plate for the proper level of airflow through the heatsink. How does this work? The baffle plate helps the heatsink to form chimney action for the airflow. The airflow moves along the fins of the heatsink to help cool the module. This process happens when it is surface mounted.


A nameplate is designated on the top surface with an easily visible drive rating label. Information such as model, drive type, power rating, customer and date code, drive ratings, and approval ratings.

The standard unidrive is manufactured for operating modes such as open-loop, closed-loop vector, servo, and regen.

The Unidrive 3401 uses a bookcase filter for surface mounting only.

Identification is made easy with the Control Techniques module Uni3401. 

Choosing the correct drive module that fits the needs of your automation system is a priority. The information below can help you decide whether or not the Control Techniques Unidrive 3401 is the correct drive for you.

Control Techniques has several key points of information in the unit number itself. The Unidrive label tells you several things.  The UNI indicates that the module is a unidrive unit. What can you find out from the number 3401? The number 3 indicates the size of the module. In this case, it is a size three drive. The second number, the 4, indicates the voltage rating. In this instance, its voltage rating is 400 V. The power rating is next, and for this unit, the 01 indicates the nominal rating. For module 3401, the nominal rating is 15 kW @380 V and 25 hp @ 460 V. The output current for this unit is 34 A, and the typical input current is 27 A.

How to use a Unidrive 3401 

Using the appropriate brackets, the Unidrive 3401 can use either one of two mounting techniques. 

Safety during installation is imperative, and the safety information must be followed for the safest installation of your unit. Before installation, the planning stage will help determine the best possible placement of the unidrive. Items under consideration are access, environmental protection, cooling, electrical safety, fire protection, electromagnetic compatibility, and avoiding hazardous areas.

Contact Us Today For More Information About Control Techniques Products

Check out the rest of our Control Techniques 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 UNI3401, 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 UNI3401 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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I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


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