Receive a Text Quote
We will send you price and availability shortly
Invalid number. Please call (800) 691-8511
Looking for a fast quote? Click here, and we'll text you.

2-year Warranty

Same Day Shipping

Control Techniques UNI4403

2 ratings

Select Condition


1 in stock


Request a formal quote

  • Ships Today
  • 2 Year Warranty
Part NumberUNI4403
ManufacturerControl Techniques
TypeAC Drives
Warranty2 Year
Operating ModesOpen Loop
Closed Loop vector
Nominal Rating - kW75
Nominal Rating - hp125
Max. Continuous Output Current at 40°C ambient (A)
Max. Continuous Output Current at 50°C ambient (A)
Typical Input Current (A)123
Max. Continous Output Current (A)152
Minimum Resistance (Ω)5
Instantaneous Powe Rating (kW)120

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 UNI4403 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 UNI4403 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 UNI4403, 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 : 115lbs

Want it shipped tomorrow?

  • Order within the next 20 hours and 1 minute.
  • If you order between 4pm and 6pm EST, you will be charged a small rush fee.

Ask about exchanging your faulty UNI4403 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 UNI4403 Overview

Control Techniques UNI4403 AC Drive

Introduction to the Control Techniques UNI4403 AC Drive

The Control Techniques UNI4403 stands as a flagship AC Drive, engineered by Control Techniques, a renowned manufacturer in the realm of industrial automation. Offering versatility across multiple operating modes, this drive redefines power and precision in diverse applications.

Operating Modes for Every Need

The UNI4403 AC Drive is designed to accommodate various operating modes, ensuring adaptability to specific requirements:

  • Open Loop: Ideal for standard applications where precise speed control is paramount.
  • Closed Loop Vector: Enhances control accuracy and performance, particularly in scenarios with varying load conditions.
  • Servo: Provides high-precision motion control for demanding applications requiring intricate positioning.
  • Regen: Enables efficient energy regeneration, optimizing power usage and reducing overall energy costs.

Navigating Nominal Ratings

With a nominal rating of 75 kW (125 hp), the UNI4403 AC Drive delivers formidable power to drive industrial machinery with ease. The drive boasts impressive continuous output current capabilities across different ambient temperatures and frequencies, ensuring reliable performance in varying operating conditions.

Optimized Performance at Every Frequency

The UNI4403 AC Drive excels in delivering continuous output current, catering to different frequency requirements:

  • At 3kHz: Up to 156 A (40°C ambient) and 135 A (50°C ambient)
  • At 4.5kHz: Up to 124 A (40°C ambient) and 105 A (50°C ambient)
  • At 6kHz: Up to 105 A (40°C ambient) and 85 A (50°C ambient)
  • At 9kHz: Up to 80 A (40°C ambient) and 65 A (50°C ambient)

Ensuring Stability and Reliability

The UNI4403 AC Drive maintains stability and reliability through:

  • Typical Input Current: 123 A, ensuring consistent performance under normal operating conditions.
  • Max. Continuous Output Current: 152 A, providing ample power reserves for demanding applications.
  • Minimum Resistance: 5 ohms, ensuring efficient power transfer and minimizing losses.
  • Instantaneous Power Rating: 120 kW, enabling the drive to handle sudden load fluctuations with ease.

Frequently Asked Questions (FAQ) about the Control Techniques UNI4403 AC Drive

Q: What are the main features of the Control Techniques UNI4403 AC Drive?

A: The Control Techniques UNI4403 AC Drive offers versatile operating modes including Open Loop, Closed Loop Vector, Servo, and Regen, providing precise control for various industrial applications. They boast a nominal rating of 75 kW (125 hp) and impressive continuous output current capabilities at different ambient temperatures and frequencies.

Q: What are the typical applications of the UNI4403 AC Drive?

A: The UNI4403 AC Drives are suitable for a wide range of industrial applications requiring precise speed and motion control. These include but are not limited to conveyor systems, pumps, fans, compressors, and various types of machinery used in manufacturing and process industries.

Q: How does the UNI4403 AC Drive ensure stability and reliability?

A: The UNI4403 AC Drives maintain stability and reliability through features such as a typical input current of 123 A, maximum continuous output current of 152 A, and minimum resistance of 5 ohms. Additionally, they offer an instantaneous power rating of 120 kW, enabling them to handle sudden load fluctuations effectively.

Q: Can the UNI4403 AC Drive operate in harsh environmental conditions?

A: Yes, the UNI4403 AC Drives are designed to operate reliably in various environmental conditions. They have been tested to provide continuous output current at different ambient temperatures and frequencies, ensuring consistent performance even in challenging industrial environments.

Q: Is the UNI4403 AC Drive easy to integrate into existing systems?

A: Yes, the UNI4403 AC Drives are designed for ease of integration into existing systems. They offer versatile operating modes and have a compact design, making them suitable for retrofitting or upgrading existing machinery and equipment.

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 UNI4403, 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 UNI4403 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

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

Conley Cooke

I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


We have an older DMU80 CNC Machine and the Handheld Control was damaged beyond repair. MRO was very helpful in confirmin...

Abbey-Purchasing Specialist