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MANUFACTURER: Control Techniques

DESCRIPTION: 400V AC Panel Mount Drive 


11 in stock
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2 Year warranty
Part NumberSP1406
ManufacturerControl Techniques
Model #SP1406
TypeAC Drives
Warranty2 Year
Typical Motor Output Power (HP)5
Input Voltage380 - 480VAC
Frame Size1
Normal Duty
Max Cont. Current (A)11
Typical Motor Output Power (kW)5.5
Typical Motor Output Power (HP)7.5
Heavy Duty
Max Cont. Current (A)9.5
Typical Motor Output Power (kW)4

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 SP1406 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 SP1406 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 SP1406, 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 : 11lbs

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Ask about exchanging your faulty SP1406 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 SP 1406 Overview

The SP 1406 is a 3 phase size 1 AC variable speed drive product manufactured by Control Techniques for the Unidrive SP line of drives.  The Control Techniques SP line is dual rated for both heavy duty and normal duty. The motors designed to be compatible with IEC60034 are supported by the dual rated SP drive. The SP 1406 is a 400 V AC panel mount drive.

Features of the SP 1406 Unidrive

The 400 V 3 Phase size 1 SP 1406 AC variable speed drive is dual rated. The Normal Duty ratings for the SP 1406 differ from the Heavy-Duty ratings.  For Normal Duty use the SP 1406 has a max continuous output current rating of 11 A and a nominal power rating of 5.5 kW at 400 V. The normal duty motor power rating of the SP 1406 is 7.5 hp at 460 V. The normal duty peak current rating for the SP 1406 variable speed drive is 12. A. The Heavy Duty max continuous output current rating is 9.5 A. The Heavy Duty open loop peak current rating is 14.2 A. The Heavy Duty closed loop peak current rating is 16.6 A. The Heavy Duty nominal power rating at 400 V is4.0 kW, and the motor power rating in Heavy duty mode is 5.0 hp at 460 V.

The typical input current for the SP 1406 is 12.6 A with the max continuous input current being 13.4 A. The fuse rating IEC gG is 16 A. The input for cable size EN60204 is 2.5 mm² and the output 1.5 mm².


The SP 1406 can be operated by 24Vdc (control) and 48Vdc (power) low voltage DC supplies. This is helpful in two ways. One of the ways in which this is beneficial is that it helps to keep motor operation when there is an emergency backup situation when there has been an AC supply failure. Another way in which this is beneficial is that during start up, or when the unit is commissioned, it can limit the speed of the servo motor. The following is the working voltage range available when the power supply is low voltage.  Minimum continuous operating voltage: 36V Minimum start up voltage: 40V Nominal continuous operating voltage: 48V Maximum braking IGBT turn on voltage: 63.6V Maximum overvoltage trip threshold: 69.6V.

There are several encoders that are compatible with the Unidrive SP line of variable speed drives.

How to use an SP 1406

The Control Techniques SP line of variable speed drives is designed to operate in several operating modes.The first is open loop mode which includes open loop vector mode, fixed V/F mode (V/Hz), and Quadratic V/F mode (V/Hz). The second operating mode that the SP 1406 can operate in is the RFC mode. The third operating mode is the closed loop vector. The fourth operating mode of the SP 1406 is Servo mode, and the final operating mode of the Control Techniques AC variable speed drive is 4 is Regen.

The Control Techniques SP 1406 AC variable speed drive comes with a two-year warranty.

Product Description

The SP1406 is a 400V AC Panel Mount Drive 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 SP1406, 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 SP1406 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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