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20G11BF710AN0NNNNN — Detailed Product Introduction, Technical Specifications, Applications, Advantages and Related Models

1. Product Overview

The 20G11BF710AN0NNNNN is a high-power industrial AC drive from the PowerFlex 755 product series.

It is designed for large three-phase motor applications where substantial motor current, controlled acceleration and deceleration, variable-speed operation and integration into an industrial automation system are required.

The unit is a 690 VAC, 710 A, three-phase, air-cooled Frame 9 AC drive. It is configured as a packaged drive with an EMC filter, AC input with precharge, DC terminals, and a 600 mm deep MCC-style Type 1 / IP20 enclosure.

This is a high-capacity industrial drive intended primarily for large rotating equipment. Typical applications include large conveyors, pumps, fans, blowers, compressors, mining machinery, material-handling equipment, cement and aggregate equipment, water-treatment systems and other large industrial machines.

The 20G11BF710AN0NNNNN is especially relevant when the application requires more current capacity than the 590 A or 650 A versions but does not require moving to the next larger current class.

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2. Brand, Product Family and Series

The model belongs to the high-power portion of the PowerFlex 755 range and is intended for applications where conventional low- and medium-power drives are not sufficient.

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3. Main Technical Parameters

The most important electrical characteristics are the 690 VAC supply class, 710 A current rating, and high-power motor-control capability.

For engineering purposes, the applicable duty rating should always be selected according to the actual motor current, overload requirement and machine operating cycle rather than relying on motor horsepower or kW alone.

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4. Dimensions and Weight

The 20G11BF710AN0NNNNN uses a large Frame 9 MCC-style construction.

The approximate weight of 1246 kg is a significant consideration during installation.

This is not a compact wall-mounted variable-frequency drive. It is a large industrial electrical cabinet assembly that requires appropriate transportation, lifting equipment, floor loading and maintenance access.

The dimensions and weight should be treated as engineering reference values for the specified configuration. For a final project layout, transportation plan or foundation design, the exact equipment drawing associated with the supplied unit should be used.

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5. Electrical Rating

The drive is intended for a 690 VAC three-phase system.

Its rated current is 710 A, which places it firmly in the high-power industrial drive category.

The main power classes can be summarized as follows:

These three figures should not be interpreted as three completely independent motor ratings.

The actual allowable motor size depends on the operating duty, overload requirements, motor current, acceleration characteristics and application conditions.

For example, a large fan or pump may have a relatively predictable torque requirement, while a loaded conveyor may require considerably more torque during acceleration.

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6. Understanding the Model Configuration

The model number 20G11BF710AN0NNNNN contains information about the drive configuration.

For practical engineering purposes, the key configuration characteristics are:

The CM jumper removed configuration is an important distinction when comparing this model with another 710 A version.

A drive having the same voltage and current rating does not necessarily have the same electrical configuration.

For replacement work, the complete catalog number should therefore be checked rather than selecting another 710 A drive simply because the current rating appears to match.

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7. Product Introduction

The PowerFlex 755 series is intended for sophisticated industrial motor-control applications.

The 20G11BF710AN0NNNNN represents a large Frame 9 configuration for high-power motor applications.

The basic operating principle is straightforward.

The drive receives electrical power from the plant’s three-phase power system and converts it into a controlled output suitable for the connected AC motor.

A simplified system is:

690 VAC Industrial Supply → AC Drive → AC Motor → Mechanical Load

The drive can control motor speed and other operating characteristics according to the control system and application requirements.

Instead of operating the motor continuously at a fixed electrical frequency, the drive can provide variable-speed operation.

This makes the drive useful in applications where production speed, material flow, pressure, airflow or mechanical speed changes during normal operation.

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8. Typical Industrial Control Architecture

A large industrial installation can be arranged as:

PLC / Controller → Industrial Communication Network → PowerFlex 755 → Motor

Additional equipment may include:

• HMI.
• Sensors.
• Remote I/O.
• Process transmitters.
• Supervisory control systems.
• Other AC drives.
• Motor protection equipment.
• Industrial network components.

This type of architecture allows the motor drive to become part of the overall production process rather than functioning as an isolated speed controller.

For example, a conveyor can automatically change speed according to production demand, while a pump can change speed according to pressure or flow requirements.

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9. Main Product Applications

9.1 Large Conveyor Systems

Large conveyor systems are one of the most suitable application areas for a high-current drive of this type.

A conveyor carrying heavy material can have considerable mechanical inertia.

Direct starting can result in substantial mechanical and electrical stress.

Variable-speed control allows the motor to accelerate progressively.

This can help reduce sudden mechanical loading on:

• Conveyor belts.
• Gearboxes.
• Couplings.
• Shafts.
• Bearings.
• Mechanical drive components.

The drive can also allow the conveyor speed to be adjusted according to production requirements.

Typical applications include:

• Mining conveyors.
• Aggregate conveyors.
• Cement conveyors.
• Port material handling.
• Steel plants.
• Bulk-material handling.
• Large production lines.

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10. Mining Industry Applications

Mining operations often require large motors for material transportation and process equipment.

The 20G11BF710AN0NNNNN can be considered for large equipment such as:

• Long-distance conveyors.
• Ore-handling systems.
• Large ventilation fans.
• Process pumps.
• Material-transfer systems.
• Auxiliary mining equipment.

The 690 VAC architecture is suitable for large industrial electrical systems.

In mining environments, however, dust, vibration, temperature and contamination must be considered carefully when designing the installation.

The drive’s electrical rating does not automatically make it suitable for every mining location.

The complete environmental and enclosure requirements must also be evaluated.

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11. Pump Applications

Large pumps frequently operate under changing process conditions.

A variable-speed drive can allow the pump motor speed to be adjusted according to process demand.

Possible applications include:

• Water treatment.
• Wastewater treatment.
• Cooling-water circulation.
• Process-water systems.
• Industrial pumping stations.
• Large utility systems.
• Process industries.

Where the hydraulic system is suitable for variable-speed operation, adjusting motor speed can provide improved process control.

The potential energy benefit depends on the pump characteristics, operating point and overall hydraulic system.

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12. Fan and Blower Applications

Large fans and blowers are also appropriate candidates.

Examples include:

• Industrial ventilation.
• Furnace ventilation.
• Combustion-air systems.
• Dust-collection systems.
• Process exhaust.
• Cooling systems.
• Cement plants.
• Steel plants.
• Large industrial HVAC systems.

For variable-torque applications, the motor does not necessarily need to operate continuously at maximum speed.

The drive can adjust speed to match the required airflow.

This can improve process control and may reduce unnecessary energy consumption.

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13. Compressor Applications

Large compressors can require substantial starting and operating torque.

The drive can provide controlled acceleration and variable-speed operation where the compressor design supports it.

Possible applications include:

• Industrial compressed-air systems.
• Process-gas systems.
• Large utility systems.
• Manufacturing plants.
• Industrial process equipment.

Compressor applications should be evaluated using the actual compressor characteristics.

Starting torque, inertia, operating speed and overload requirements can vary considerably between compressor designs.

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14. Cement Industry Applications

Cement plants contain numerous high-power motors.

Typical applications include:

• Large fans.
• Material conveyors.
• Process pumps.
• Material-handling equipment.
• Cooling equipment.
• Auxiliary process machinery.

A 710 A drive provides sufficient capacity for many large industrial motor applications in this sector.

The exact motor and load requirements should still be checked before selecting the drive.

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15. Aggregate and Material-Handling Applications

Aggregate plants often use large conveyors, crushers, screens and process equipment.

Variable-speed operation can be useful for:

• Conveyor speed control.
• Feed-rate control.
• Material flow management.
• Equipment synchronization.
• Controlled acceleration.
• Controlled deceleration.

The drive can therefore contribute not only to motor control but also to overall process management.

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16. Water and Wastewater Applications

Large water-processing installations often use high-power pumps and blowers.

Possible applications include:

• Raw-water pumping.
• Process-water pumping.
• Wastewater pumping.
• Aeration systems.
• Cooling-water circulation.
• Industrial wastewater systems.

Variable-speed operation can be useful when demand changes over time.

For example, a pump does not necessarily need to operate at maximum speed when the required flow is reduced.

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17. Main Product Advantages

17.1 High 710 A Current Capacity

The 710 A rating is one of the defining characteristics of the product.

It allows the drive to control very large motors and heavy industrial loads.

Compared with lower-current versions, it provides additional capacity for applications where the motor current approaches the upper limit of the smaller drive classes.

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17.2 High-Voltage 690 VAC Architecture

The 690 VAC voltage class is designed for large industrial motor systems.

High-power motor systems can benefit from higher distribution voltage because the current associated with a given power level can be reduced compared with lower-voltage systems.

This can be useful when designing large industrial power-distribution equipment.

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17.3 High Normal-Duty Capacity

The approximately 650 kW normal-duty rating provides substantial capacity for continuous industrial applications.

This makes the model suitable for large:

• Pumps.
• Fans.
• Conveyors.
• Blowers.
• Process machines.

The actual selection must still be based on motor current and operating duty.

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17.4 500 kW Heavy-Duty Capacity

The approximately 500 kW heavy-duty rating is important for applications where the motor experiences higher overload requirements.

Potential examples include:

• Heavy conveyors.
• High-inertia machines.
• Difficult starting applications.
• Material-handling equipment.
• Industrial process machinery.

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17.5 Air-Cooled Construction

The air-cooled configuration can simplify the cooling arrangement compared with a liquid-cooled system.

It is particularly suitable for controlled industrial electrical rooms with sufficient ventilation.

However, air cooling also means that airflow and environmental cleanliness are important maintenance considerations.

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17.6 MCC-Style Installation

The 600 mm deep MCC-style arrangement is intended for industrial electrical rooms and centralized motor-control installations.

This makes it suitable for plants where multiple motor-control systems are installed in a dedicated electrical area.

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17.7 EMC Filtering

The drive includes an EMC filter configuration.

This can be useful in industrial systems where electromagnetic compatibility is an important design requirement.

The filter should be considered together with:

• Grounding.
• Motor cable selection.
• Cable shielding.
• Cable length.
• Motor insulation.
• Other electrical equipment.

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18. Advantages for Motor Control

The drive can provide controlled motor acceleration, operation and deceleration.

These functions can significantly improve machine behavior compared with simple fixed-speed motor operation.

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19. Advantages for Process Control

The drive can be integrated into a larger automated process.

For example:

Process Sensor → PLC → Drive → Motor → Mechanical Process

The sensor can provide information about:

• Pressure.
• Flow.
• Speed.
• Level.
• Temperature.
• Production rate.

The controller can then adjust the drive command according to the process requirement.

This type of control is especially useful for large industrial installations.

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20. Advantages for Maintenance

A large industrial drive can provide valuable information for troubleshooting.

Maintenance personnel may use drive operating information to evaluate:

• Motor current.
• Motor speed.
• Operating state.
• Fault status.
• Warning status.
• Reference command.
• Communication condition.
• Parameter configuration.

This can make troubleshooting more systematic.

For large conveyors and process equipment, a rapid diagnosis can help reduce production downtime.

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21. Installation Requirements

The 20G11BF710AN0NNNNN should be treated as a major electrical installation.

Approximate physical dimensions are:

2453 mm H × 1200 mm W × 800 mm D

Approximate equipment weight:

1246 kg

This means the installation should be planned before delivery.

Important mechanical considerations include:

• Floor loading.
• Lifting equipment.
• Transportation route.
• Door dimensions.
• Maintenance access.
• Cabinet clearance.
• Cable-entry area.
• Ventilation.

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22. Electrical Installation Considerations

The drive is designed for a 690 VAC three-phase system and a 710 A current class.

The electrical installation therefore needs appropriately engineered:

• Incoming power.
• Protective equipment.
• Grounding.
• Power cabling.
• Motor cabling.
• Short-circuit protection.
• Isolation equipment.
• EMC management.

The complete electrical system should be evaluated rather than treating the drive as a standalone component.

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23. Cooling and Environmental Considerations

The drive uses air cooling.

A large air-cooled drive generates significant heat, especially when operating under heavy load.

The installation should therefore provide adequate:

• Airflow.
• Ventilation.
• Heat removal.
• Ambient-temperature control.
• Dust management.

Cooling fans and airflow paths should be inspected periodically.

Accumulated dust can reduce cooling efficiency and increase thermal stress.

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24. Maintenance Recommendations

Preventive maintenance is especially important for a high-power drive.

A cooling or electrical problem can eventually cause a drive trip and stop a major production machine.

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25. Five Recommended Models from the Same Series or Closely Related Range

The following models are useful comparison candidates within the high-power PowerFlex 755 range.

These models are useful when comparing different current classes within the same high-power product family.

The 590 A and 650 A versions provide lower current capacity, while the 765 A and 795 A versions provide additional capacity for larger motors and more demanding applications.

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26. Five Closely Related 710 A Configurations

When the motor requirement is approximately the same but the electrical configuration needs to change, the following catalog numbers are useful for comparison.

The important point here is that these models should not be treated as automatically interchangeable.

The voltage and current may be identical while the configuration represented by the suffix is different.

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27. Five Same-Brand Popular / Useful Models

For users looking at a broader selection from the same brand, the following high-power models are useful comparison points.

These are useful high-power comparison models when the application requires a large motor drive.

The final selection should be based on motor current, duty cycle, overload, starting torque and machine characteristics.

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28. Current Capacity Comparison

The 710 A model is an important step above the 650 A class.

It provides additional current capacity while remaining within the same general Frame 9 high-power architecture.

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29. Application Selection Guide

These recommendations are intended as engineering comparison points rather than automatic selection rules.

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30. Important Selection Factors

Before selecting the 20G11BF710AN0NNNNN, the following information should be available.

This is particularly important for a 710 A drive because an incorrect selection can affect the entire motor-control system.

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31. Product Advantages in Large Industrial Plants

The 20G11BF710AN0NNNNN is particularly attractive for large plants because it combines high current capacity with variable-speed motor control.

The 710 A output rating gives the drive substantial capacity.

The 690 VAC architecture is appropriate for high-power motor systems.

The approximately 650 kW normal-duty class makes it suitable for very large continuous-duty machinery.

The 500 kW heavy-duty class provides a useful capacity range for demanding applications.

The Frame 9 air-cooled construction is designed for industrial electrical installations.

The EMC filter can be useful where electromagnetic compatibility is part of the project requirements.

The MCC-style arrangement is also well suited to centralized motor-control rooms.

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32. Advantages in Conveyor Systems

For conveyors, one of the most important benefits is controlled acceleration.

A large conveyor can contain considerable mechanical inertia.

A controlled acceleration profile can help avoid sudden torque transmission to the mechanical system.

The drive can also allow the conveyor to run at a speed appropriate to the process.

For example:

Low Production Demand → Lower Conveyor Speed

High Production Demand → Higher Conveyor Speed

This makes the drive useful not only as an electrical device but also as a process-control component.

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33. Advantages in Pumping Systems

For pumps, the main advantage is the ability to adjust motor speed.

If the process requires less flow, the motor can potentially operate at a lower speed.

If more flow is required, motor speed can be increased within the permitted operating range.

This can provide:

• Better flow control.
• Reduced mechanical throttling.
• Improved process flexibility.
• Potential energy savings.
• Better coordination with process demand.

The actual energy-saving result depends on the hydraulic system and should be evaluated from real operating data.

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34. Advantages in Fan Systems

For large fans, variable-speed operation can allow airflow to be adjusted more precisely.

This can be valuable in:

• Industrial ventilation.
• Combustion systems.
• Furnace applications.
• Dust collection.
• Process exhaust.
• Cooling systems.

The drive can therefore help the fan respond to changing production conditions.

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35. Advantages in Large Motors

The product’s greatest strength is its ability to handle very large AC motors.

A 710 A current rating provides substantially more capacity than typical compact industrial drives.

This makes the unit suitable for motors where the electrical and mechanical demands are too large for smaller drive platforms.

It is particularly useful when a plant wants to move away from simple fixed-speed operation and introduce controlled motor operation into a large machine.

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36. Product Limitations

The product is not suitable for every application.

Its high power means that it is physically large.

Its approximate 1246 kg weight requires professional handling.

Its approximate 2453 × 1200 × 800 mm dimensions require significant installation space.

Its 690 VAC electrical system requires appropriate plant infrastructure.

The air-cooled configuration requires proper ventilation.

The high current also means that cabling, protective equipment, grounding and upstream power equipment must be designed appropriately.

For a small motor, this type of drive would be unnecessary and uneconomical.

It is intended for genuinely large industrial motor applications.

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37. Overall Technical Summary

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38. Final Product Assessment

The 20G11BF710AN0NNNNN is a high-power 690 VAC, 710 A Frame 9 AC drive designed for large industrial motor applications.

Its main strengths are its high current capacity, high-power rating, industrial construction, variable-speed capability, air-cooled architecture and suitability for integration into automated motor-control systems.

The approximately 650 kW normal-duty rating makes it appropriate for a wide range of large continuous-duty machines.

The approximately 500 kW heavy-duty rating makes it useful for demanding applications where higher overload capability is required.

The product is especially appropriate for large conveyors, mining machinery, pumps, fans, blowers, compressors, cement equipment, aggregate equipment, water-treatment systems and large material-handling systems.

The closest alternatives in the same high-power range include the 590 A, 650 A, 765 A and 795 A configurations.

If the motor current is close to 710 A and the application requires a large 690 VAC variable-speed drive, the 20G11BF710AN0NNNNN is a strong fit within this product class.

For replacement work, however, the entire catalog number should be checked carefully. In particular, the AN0 configuration, EMC filtering, CM-jumper arrangement, braking configuration, enclosure and input configuration should match the requirements of the installation.

The most important practical specifications to remember are:

690 VAC — 710 A — approximately 650 kW normal duty — approximately 500 kW heavy duty — Frame 9 — air cooled — IP20 / Type 1 — approximately 2453 × 1200 × 800 mm — approximately 1246 kg.