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MANUFACTURER: Control Techniques



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2 Year warranty
Part NumberUNI4403
ManufacturerControl Techniques
Model #UNI4403
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 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 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

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  • Order within the next 10 hours and 57 minutes.
  • 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.

Additional Information

Control Techniques UNI 4403 Overview

The universal variable speed AC drive module UNI 4403 is a Size 4 drive manufactured by Control Techniques for use with induction and servo motors. The UNI 4403 module includes a nameplate indicating the product description. Important information including the drive type, approvals, power ratings, model number, and drive ratings can be found on the nameplate.

Features of the Control Techniques UNI 4403

Unidrive module UNI 4403 is a size 4 drive with a 400 V voltage rating. The nominal rating at 380 V is 75 kW and the nominal rating at 460 V is 125 hp. The output current for the 4403 is 156 A. The typical input current is 123 A. The Unidrive operates in four operating modes: Open Loop, Closed Loop Vector, Servo, and Regan. Overload in open loop mode is 150 % for 60 s. Overload in Closed Loop mode vector 175% for 60 s. Overload in Servo mode 175% for 4 s, and Regan mode 150 % for 60 s.
The UNI 4403 drive module is ventilated internally through the supplied heatsink fans. Appropriate clearance must be maintained for a free flow of air.

UNI 4403 Drive features

The front left side of the UNI 4403 drive module has an upper and lower display at the top. The programming keys are below the lower display. The three control keys are below the main display. The keys control motion such as Forward / Reverse, Stop / Reset, and Run. The connection for a large option module is located below the control keys followed by the small option module connection space. The front bottom of the UNI 4403 has two connections. The bottom left front connector is an encoder connection. The bottom right front is for control connections. The Size 4 module has AC In and AC Out located on the bottom front of the drive. The Unidrive modules (1-4) have built-in braking transistors.

UNI 4403 Option Module Guide

The UD 70, UD 71, and UD 78 are large option modules. The U70 is an applications module, the 71 is an RS232 and RS485, and the UD 78 is a Servo module. Other available large option modules for the UNI 4403 are the UD 73- UD 77.

UD 73 Profibus-DP                         UD 77 Device Net                           UD 77 CAN
UD 74 Interbus                               UD 75 CT Net                                   UD 76 Modbus Plus
UD 77 CANopen                             UD 77 CANopen

The UNI 4403 has several small option modules available for connection.
UD 55 Cloning module                  UD 53 Resolver                               UD 52 Sin Cos Encoder
UD 51 Second Encoder                  UD 50 Extra I/O

Several key points to consider when planning for mechanical installation include consideration of option module fitting, strategizing mounting, the size and layout of the enclosure, and finally, the terminal location and torques settings. Carefully planning the mechanical installation helps ensure environmental protection, electrical safety, and electromagnetic compatibility.

Mounting the Control Techniques UNI 4403

The UNI 4403 offers two mounting methods: hole or surface mounting. Appropriate brackets must be used when mounting the Unidrive module.
The Control Techniques UNI 4403 comes with a two-year warranty.

Product Description

The UNI4403 is a AC DRIVE 125HP 75KW 3PHASE that is manufactured by Control Techniques. These products are manufactured in United Kingdom and are designed for Metal production, paper processing, and material conveying usage. All of the products come with a 2 year warranty from MRO Electric. We also carry AC Drives from other manufacturers such as Siemens and Yaskawa.

Related 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 sending us an email 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.

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