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20G11JF710JN0NNNNN — PowerFlex 755 High-Power AC Drive

1. Product Overview

The 20G11JF710JN0NNNNN is a high-power PowerFlex 755 AC variable frequency drive designed for large industrial motor applications.

It is a 690 VAC, three-phase, 710 A drive in Frame 9, using forced-air cooling and an IP54 / Type 12, 800 mm deep MCC-style enclosure.

The unit is intended for large motors used in pumps, fans, blowers, conveyors, compressors, material-handling equipment, mining machinery, water-treatment systems, process plants, cement plants, and other heavy industrial installations.

Its rated power changes according to the required duty class. The approximate ratings are 800 kW for Light Duty, 710 kW for Normal Duty, and 590 kW for Heavy Duty.

The model also includes embedded Ethernet/IP communication, AC input with precharge and DC terminals, filtering, a common-mode capacitor jumper installed, and a blank configuration without a local HIM keypad.

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2. Brand and Product Series

The product belongs to the PowerFlex 755 series, which is designed for high-performance variable-speed control in demanding industrial applications.

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3. Complete Technical Parameters

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4. Electrical Rating

The 710 A output rating is the key electrical characteristic of this model.

For a 690 VAC industrial motor system, a 710 A drive represents a very substantial amount of motor-control capacity.

The three main duty classifications are:

These three ratings should not be treated as interchangeable.

The correct rating depends on the characteristics of the motor and driven machine.

A centrifugal pump or fan may be evaluated using the Light Duty rating.

A general industrial motor may be evaluated using the Normal Duty rating.

A conveyor, mixer, crusher, or other high-torque application may require the Heavy Duty rating.

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5. What the 710 A Rating Means

The 710 A value represents the drive’s continuous output-current class.

When selecting a drive, motor current is normally more important than simply comparing motor kW ratings.

For example, two motors with similar power ratings can have different rated currents depending on their efficiency, power factor, voltage, and operating conditions.

For this reason, the motor nameplate should be checked carefully before selecting the drive.

The following information is particularly important:

• Motor rated voltage
• Motor rated current
• Motor rated power
• Motor rated frequency
• Motor rated speed
• Motor service factor
• Required overload
• Acceleration time
• Load torque
• Minimum operating speed
• Maximum operating speed

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6. Product Introduction

The 20G11JF710JN0NNNNN is designed to control large AC motors by regulating the electrical frequency and voltage supplied to the motor.

Instead of operating a motor continuously at a fixed speed, the drive can adjust motor speed according to the process requirement.

This makes it possible to operate large industrial machinery more smoothly and efficiently.

For example, a large pump does not always need to operate at maximum speed.

If the required flow decreases, the drive can reduce the motor speed.

Similarly, a large fan can operate at a lower speed when less airflow is required.

For a conveyor, the drive can provide controlled acceleration rather than applying full motor torque immediately.

This combination of speed control, process control, communication, and monitoring makes the drive suitable for complex industrial systems.

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7. Main Product Features

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8. Product Applications

8.1 Large Centrifugal Pumps

One of the most suitable applications for the 20G11JF710JN0NNNNN is large centrifugal pumping equipment.

Typical applications include:

• Water treatment plants
• Wastewater treatment
• Industrial water circulation
• Cooling-water systems
• Process-water systems
• Raw-water pumping
• Irrigation
• Mining dewatering
• Industrial utility systems
• Chemical process pumping

A variable-speed drive can regulate pump speed according to the required flow or pressure.

This is particularly useful in systems where the demand changes throughout the day.

Instead of using a motor that runs continuously at maximum speed and regulating flow through throttling, the drive can directly adjust motor speed.

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9. Large Fan Applications

The drive is also suitable for large industrial fans.

Typical applications include:

• Industrial ventilation
• Furnace ventilation
• Boiler-related fan systems
• Dust collection
• Exhaust systems
• Large HVAC installations
• Mining ventilation
• Process-air systems
• Cooling-air systems

Fan applications often have variable-torque characteristics.

When process demand decreases, reducing fan speed can significantly reduce the motor’s required power.

The 800 kW Light Duty rating therefore makes this model particularly attractive for very large fan systems.

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10. Conveyor Systems

Large conveyors can require very high motor power.

The 20G11JF710JN0NNNNN can be used for conveyor applications when the motor current and duty requirements fall within its ratings.

Typical industries include:

• Mining
• Cement
• Aggregate processing
• Ports
• Bulk-material handling
• Material processing
• Heavy manufacturing
• Industrial logistics

Controlled acceleration is one of the main advantages in conveyor applications.

A properly configured acceleration ramp can reduce mechanical shock to the conveyor system.

This can help reduce stress on:

• Conveyor belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Drive pulleys
• Mechanical transmission components

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11. Mining Applications

Large mining systems frequently require high-power motors.

Potential applications include:

• Long-distance conveyors
• Mine ventilation
• Dewatering pumps
• Material-handling systems
• Processing equipment
• Large fans
• Auxiliary machinery

The large current capacity of the 710 A drive makes it suitable for major motor installations.

Mining environments require additional consideration of dust, temperature, vibration, ventilation, cable installation, and maintenance access.

The IP54 / Type 12 enclosure can be useful in an appropriate installation environment, but it does not eliminate the need for proper environmental engineering.

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12. Cement Plant Applications

Cement plants operate numerous high-power motors.

The 20G11JF710JN0NNNNN can be considered for:

• Large process fans
• Raw-material conveyors
• Cooling fans
• Dust collection
• Material-handling systems
• Large pumps
• Process ventilation
• Auxiliary machinery

The variable-speed capability can provide better process adjustment compared with fixed-speed motor operation.

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13. Steel and Metal Processing

Large metal-processing plants can use high-power drives for:

• Cooling-water pumps
• Process fans
• Material handling
• Ventilation
• Large auxiliary systems
• Production machinery
• Process pumps

The embedded communication capability can be useful where motor drives need to be monitored from a centralized control system.

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14. Compressor Applications

Large compressors may also require variable-speed control.

Potential applications include:

• Industrial compressed air
• Process gas
• Large manufacturing utilities
• Process equipment
• Industrial cooling systems

Compressor applications require careful attention to the compressor’s torque characteristics and minimum and maximum operating speeds.

The drive should be selected according to the actual compressor motor current rather than only the compressor’s nominal kW value.

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15. Process Machinery

The drive can also be considered for large process machinery such as:

• Mixers
• Blowers
• Material processors
• Industrial machines
• Large mechanical systems
• Production equipment
• Process pumps
• Large auxiliary machines

For these applications, the Normal Duty or Heavy Duty rating may be more important than the Light Duty rating.

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16. Advantages of the 20G11JF710JN0NNNNN

16.1 High 710 A Output Capacity

The 710 A output rating is the primary advantage of this configuration.

It provides the electrical capacity necessary for very large motors.

This makes it suitable for applications where smaller drive models would not have enough continuous output current.

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16.2 800 kW Light-Duty Capacity

The approximately 800 kW Light Duty rating provides substantial capacity for large variable-torque loads.

This makes the model particularly useful for:

• Pumps
• Fans
• Blowers
• Ventilation systems
• Cooling systems

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16.3 710 kW Normal-Duty Capacity

The 710 kW Normal Duty rating makes the drive appropriate for many large industrial machines.

It provides a useful balance between motor capacity and overload requirements.

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16.4 590 kW Heavy-Duty Capacity

The approximately 590 kW Heavy Duty rating provides a substantial capacity for demanding mechanical loads.

This is particularly important for applications where acceleration torque and overload performance are more significant.

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17. 690 VAC Voltage Advantage

A 690 VAC system is commonly used for large industrial motors.

Higher motor voltage can help control current levels at high power.

This can be advantageous when designing:

• Motor feeders
• Large power distribution systems
• MCC systems
• Motor cable systems
• Large industrial plants

The 690 VAC configuration is therefore particularly suitable for large motor installations.

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18. IP54 / Type 12 Enclosure

The IP54 / Type 12 enclosure provides protection suitable for many industrial environments.

It helps protect internal electrical components against dust and water ingress within the limits of the enclosure rating.

This makes the drive more appropriate for industrial installations than an exposed open-frame configuration.

Nevertheless, the installation environment must still be evaluated carefully.

Excessive dust, corrosive gases, high humidity, condensation, extreme temperatures, and inadequate ventilation can affect long-term reliability.

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19. Embedded Ethernet/IP

Embedded Ethernet/IP provides a convenient communication method for integrating the drive into an industrial automation system.

The control system can potentially exchange information such as:

This can reduce dependence on individual hardwired signals.

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20. PID Process Control

PID control is particularly useful in process applications.

A pump can maintain a pressure setpoint.

A fan can maintain a duct pressure.

A blower can maintain airflow.

A process system can regulate speed according to feedback from sensors.

The drive continuously compares the process feedback with the desired setpoint and adjusts motor speed accordingly.

This can provide smoother and more stable operation.

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21. Cooling System

The 20G11JF710JN0NNNNN uses forced-air cooling.

At a 710 A output level, power-electronic heat dissipation becomes a major design consideration.

The installation should provide sufficient airflow and service clearance.

Blocked ventilation passages can cause higher internal temperatures and reduce the expected service life of power components.

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22. Dimensions

The model is a large Frame 9 packaged drive.

The catalog configuration specifies an 800 mm deep MCC-style enclosure.

A reference packaged physical envelope is approximately:

104.2 cm × 199 cm × 251.5 cm

This should be treated as a reference packaged dimension, not as a universal installation drawing for every possible configuration.

The final mechanical drawing should be used for cabinet design, foundation work, cable routing, lifting arrangements, and maintenance access.

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23. Weight

The 20G11JF710JN0NNNNN is a very large industrial drive.

A reference weight of approximately 1,306 kg can be used for general planning purposes, but the actual weight can vary according to the final enclosure and configuration.

For engineering calculations, the final shipping documentation should take priority over a general reference value.

The approximate 1,306 kg figure should not be used as the sole basis for crane selection or structural calculations.

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24. Installation Considerations

The installation of a 710 A, 690 VAC drive requires careful planning.

The electrical distribution system must be correctly sized.

The motor feeder must be appropriately selected.

Grounding must be correctly implemented.

The enclosure must have adequate ventilation.

The surrounding equipment must not obstruct the cooling airflow.

Adequate maintenance access should be provided.

Because of the size and weight of the unit, lifting and transportation should be planned before the equipment arrives at the site.

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25. Motor Selection

The drive should be matched to the motor according to electrical current and duty.

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26. Maintenance

Regular maintenance is particularly important for high-power drives.

The cooling fans should be inspected periodically.

Air passages should remain clean.

Electrical connections should be checked according to the applicable maintenance procedure.

The enclosure should be inspected for dust and contamination.

The drive should be monitored for abnormal temperature, noise, vibration, or repeated fault conditions.

Communication status should also be checked where the drive is integrated into an automation network.

Preventive maintenance can help reduce unexpected downtime.

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27. Five Recommended Same-Series or Closely Related Models

The following models are good comparison points within the same PowerFlex 755 high-power family.

These five models form a useful progression around the 710 A configuration.

The 590 A model is appropriate when a lower current capacity is sufficient.

The 650 A model is the next lower capacity.

The 710 A model is the central configuration discussed here.

The 765 A and 795 A models provide additional capacity for larger motors.

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28. Same-Series Model Comparison

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29. Five Related Models With Different Configuration Options

Within the same model family, configuration suffixes can also be important.

For example, models with similar current and voltage ratings may differ in operator-interface configuration.

This type of comparison is useful when the electrical rating is already known but the required operator interface or capacity needs to be changed.

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30. Five Same-Brand Popular Models

For a broader product selection, the following models are useful representatives of the same brand’s industrial drive portfolio.

The last two examples are intended to show the broader range of industrial drive applications rather than direct electrical replacements for the 710 A model.

A small PowerFlex 525-class drive is not a substitute for a 710 A high-power drive.

Likewise, a PowerFlex 753 configuration should only be considered after checking voltage, current, power, enclosure, overload, and mechanical requirements.

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31. Comparison of Product Families

The 20G11JF710JN0NNNNN sits toward the high-power end of the PowerFlex 755 family.

It is not intended for small machine applications.

Its main purpose is controlling large industrial motors where a substantial current capacity is required.

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32. Application Selection Table

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33. Advantages in Pump Systems

For a large pump, the drive can provide several useful functions.

The motor does not have to run continuously at maximum speed.

The pump speed can be adjusted according to flow requirements.

Pressure can be maintained through feedback control.

Starting can be controlled smoothly.

The mechanical system can experience less shock compared with direct full-voltage starting.

The control system can monitor drive status and operating data.

This makes the 20G11JF710JN0NNNNN a practical choice for large process-pumping systems.

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34. Advantages in Fan Systems

For large fans, variable-speed control can provide:

• Adjustable airflow
• Reduced unnecessary operation
• Smooth starting
• Process regulation
• Centralized monitoring
• Pressure control
• Better matching between airflow and process demand

The 800 kW Light Duty rating is particularly relevant to large variable-torque fan applications.

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35. Advantages in Conveyor Systems

For conveyor applications, the main benefits are different.

The drive can provide:

• Controlled acceleration
• Controlled deceleration
• Adjustable speed
• Reduced mechanical shock
• Process synchronization
• Centralized monitoring
• Fault detection
• Motor protection

For very long conveyors, acceleration control can be particularly important.

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36. Advantages in Automated Plants

The integrated communication capability makes the drive useful in modern automated factories.

A central control system can monitor the motor without requiring an operator to stand next to the drive.

For example, an operator can monitor whether the motor is running, check the output current, review a fault condition, or change the speed reference through the plant control architecture.

This can reduce troubleshooting time and make large motor systems easier to manage.

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37. Mechanical Installation Summary

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38. Important Selection Notes

The 20G11JF710JN0NNNNN should not be selected only because the motor is described as a “710 kW motor.”

The correct approach is to check the motor’s actual current and determine the required drive duty.

For a variable-torque pump or fan, the Light Duty rating may be appropriate.

For a general continuous industrial machine, the Normal Duty rating may be more appropriate.

For a high-torque application, the Heavy Duty rating must be considered.

The motor current must remain within the applicable drive rating.

The installation environment must also be considered.

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39. Overall Product Advantages

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40. Final Technical Summary

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41. Final Evaluation

The 20G11JF710JN0NNNNN is a high-capacity industrial AC drive intended for large motor applications.

Its 710 A output rating, 690 VAC input class, 800 kW Light Duty rating, 710 kW Normal Duty rating, and 590 kW Heavy Duty rating place it in the high-power range of industrial variable-frequency drives.

Its strongest application areas are large pumps, large fans, blowers, conveyors, mining equipment, process machinery, water-treatment systems, cement equipment, and other large motor-driven installations.

The PowerFlex 755 platform also provides useful integration capabilities for industrial automation, particularly through embedded Ethernet/IP and process-control functions.

The IP54 / Type 12 enclosure is suitable for many industrial environments, while the forced-air cooling system is designed to handle the heat produced by the high-power electronics.

The 800 mm MCC-style configuration makes it suitable for large industrial motor-control installations, but it also means that mechanical planning is important.

With a reference physical envelope of approximately 104.2 × 199 × 251.5 cm and a reference weight of approximately 1,306 kg, this is substantial industrial equipment rather than a compact panel-mounted inverter.

For replacement or model selection, the most closely related choices are the 590 A, 650 A, 765 A, and 795 A versions.

The 590 A and 650 A models provide lower capacity, while the 765 A and 795 A versions provide additional capacity.

For a new installation, the most important selection criteria should be the motor nameplate current, required duty classification, overload requirement, voltage, operating speed range, acceleration requirements, ambient conditions, enclosure requirements, and mechanical installation space.

Overall, the 20G11JF710JN0NNNNN is best regarded as a large-frame, 690 VAC, 710 A industrial variable-frequency drive for high-power motor applications, particularly where adjustable speed, process control, industrial communication, and robust enclosure protection are required.