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Schneider Electric ATV71HU55N4

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Part NumberATV71HU55N4
ManufacturerSchneider Electric
TypeAC Drives
Warranty2 Year
Component Variable speed drive
4...16 kHz with derating factor
Specific application Complex, high-power machines
Motor power5.5 kW, 3 phase 380...480 V
Max hp Rating7.5 hp, 3 phase 380...480 V
Cable length/max164.04 ft 
Supply voltage380...480 V - 15...10 %
Phase 3 Phase
Line current17 A 480 V 3 phase 5.5 kW / 7.5 hp 20.3 A 380 V 3 phase 5.5 kW / 7.5 hp
Assembly With heat sink
Output0.1…599 Hz
Switching frequency1...16 kHz adjustable

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 ATV71HU55N4 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 ATV71HU55N4 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 ATV71HU55N4, 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 : 17lbs

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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.

Schneider Electric ATV71HU55N4 Overview

Variable Speed Drive ATV71HU55N4 Technical Description

Main Features:

  • Range of Product: Altivar 71
  • Product Type: Variable speed drive tailored for complex, high-power machines.
  • Component Name: ATV71
  • Power Capacity: 5.5 kW, 3 phase, 380...480 V with an equivalent horsepower rating of 7.5 hp.
  • Power Supply: 380...480 V at 3 phase, accommodating a voltage fluctuation range of -15 to +10%.
  • Current Specs: 17 A at 480 V (5.5 kW/7.5 hp) and 20.3 A at 380 V (5.5 kW/7.5 hp).
  • EMC Filter: Integrated for efficient electromagnetic interference filtering.
  • Assembly Style: The device comes with a heat sink for efficient heat dissipation.
  • Output Frequency Range: It operates from 0.1 to 599 Hz, ensuring a wide range of speed control.
  • Communication Protocols: The drive is compatible with both CANopen and Modbus, providing flexible integration into various control networks.

Motor Control:

  • Offers Sensorless Flux Vector Control (SFVC) and Voltage/Frequency Ratio Control. Also available is the Flux Vector Control (FVC) with a sensor.
  • Speed Range: 1-1000 for asynchronous motors with encoder feedback and 1-50 for synchronous motors in open-loop mode.
  • Torque Performance: Offers transient over-torque up to 220% for short periods, ensuring robust performance during sudden load changes.


  • Analog Inputs: Two configurable inputs. AI1 is bipolar differential voltage, and AI2 can be set for either voltage or current mode.
  • Analogue Output: One software-configurable output (AO1) that can operate in logic, current, or voltage mode.
  • Discrete Inputs: Seven inputs, with types ranging from programmable 24 V DC to PTC probe inputs.
  • Discrete Outputs: Two configurable relay logic outputs.

Safety and Protection:

  • Comprehensive protection against overvoltages, short circuits, overcurrent, overheating, and more.
  • Safe Torque Off (STO): Ensures safety by preventing unexpected motor torque application.
  • Diagnostic LED: A dedicated red LED for drive voltage diagnostic.

Environmental Adaptability:

  • Operating Altitude: Functions up to 3000 m with a current derating above 1000 m.
  • Ambient Temperature Range: Operates between -10°C and 50°C without derating.
  • Relative Humidity: Can function in 5% to 95% humidity without condensation.
  • Vibration and Shock Resistance: Built to endure industrial environments, the drive can withstand vibrations up to 1 gn and shocks up to 15 gn.
  • Protection: Comes with an IP20 protection rating.

Physical Dimensions:

  • Height: 295 mm
  • Width: 175 mm
  • Depth: 187 mm
  • Weight: 5.5 kg

Certifications and Standards:

  • Adheres to numerous international standards, including IEC 60721-3-3, EN/IEC 61800-5-1, UL Type 1, and many others.
  • Certifications: GOST, CSA, NOM 117, UL, C-tick.

Options and Extensions:

The drive supports a wide array of option cards like Communication cards EtherNet/IP, I/O extension cards, Overhead crane cards, and many more, ensuring versatility in various applications.

The ATV71HU55N4 is a sophisticated variable-speed drive designed for demanding applications that require precise control, robust performance, and integration flexibility. Its advanced features make it suitable for both synchronous and asynchronous motors, ensuring maximum performance and efficiency.

ATV71HU55N4 Variable Speed Drive: Frequently Asked Questions (FAQs)

What is the primary application of the ATV71HU55N4 variable speed drive?

The ATV71HU55N4 is primarily designed for complex, high-power machines. It's part of the Altivar 71 product range.

What motor power is this drive suitable for?

It's suitable for 5.5 kW, 3 phase 380...480 V motors, equivalent to 7.5 hp.

Is there an integrated EMC filter in this drive?

Yes, this drive has an integrated EMC filter.

What is the maximum motor cable length supported?

The drive supports up to 164.04 ft (50 m) with shielded cable and 328.08 ft (100 m) with unshielded cable.

What type of motors is the ATV71HU55N4 designed to work with?

It's designed for both synchronous and asynchronous motors.

Does the drive have a built-in braking mechanism?

Yes, it provides braking to a standstill through DC injection.

What's the noise level of this variable speed drive?

The noise level is 55.6 dB, according to 86/188/EEC.

What communication protocols does it support?

The ATV71HU55N4 supports CANopen and Modbus protocols.

Can the operating position be altered?

Yes, the ideal operating position is vertical but allows for a deviation of +/- 10 degrees.

What is the IP protection rating of this drive?

It has an IP20 degree of protection.

Does this drive come with any certification?

Yes, it comes with multiple certifications including GOST, CSA, NOM 117, UL, and C-tick.

Is there any provision for adding optional cards or modules?

Yes, there are a variety of optional cards available including communication cards for various protocols, I/O extension cards, overhead crane cards, and interface cards for the encoder.

What is the operating altitude range?

It can operate without derating up to an altitude of 3280.84 ft (1000 m). Beyond that, up to 9842.52 ft (3000 m), there's a current derating of 1% per 100 m.

Are there any safety features integrated into the drive?

The drive offers multiple protection mechanisms, including against overcurrent, short circuits, overheating, and phase breaks.

Is there a temperature limit for the drive's operation?

Yes, it's designed to operate in ambient air temperatures of 14…122 °F (-10…50 °C) without derating.

Contact Us Today For More Information About Schneider Electric Products

Check out the rest of our Schneider Electric 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 ATV71HU55N4, 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 ATV71HU55N4 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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