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Allen-Bradley 20G1ABC750AN0NNNNN PowerFlex 755 AC Drive — Detailed Product Specifications, Introduction, Applications, Advantages and Related Models

1. Product Overview

The Allen-Bradley 20G1ABC750AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications.

It is a 400 VAC, three-phase, 750 A, Frame 8 air-cooled drive with a 450 kW light-duty rating, 400 kW normal-duty rating, and 315 kW heavy-duty rating.

This configuration uses a Type 1 / IP20, 600 mm deep MCC-style construction and is equipped with AC input with precharge, no external DC terminals, EMC filtering, CM jumper removed, and no internal dynamic-braking transistor.

The AN0 configuration is supplied without a HIM (Human Interface Module). This makes it particularly suitable for installations where the drive is expected to be controlled, configured, and monitored through a plant automation system, external HMI, PLC, engineering workstation, or other control architecture rather than through a local drive-mounted operator interface.

The model is part of the high-power section of the PowerFlex 755 family and is intended for demanding applications such as large pumps, fans, blowers, conveyors, compressors, process equipment, material-handling machinery, and other large industrial motor systems.

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2. Brand and Product Series

The PowerFlex 755 series is designed for large and technically demanding motor-control applications where high power, variable-speed operation, automation integration, diagnostics, and flexible control are required.

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3. Complete Technical Parameters

The dimensions and weight are practical reference values for the Frame 8, 600 mm deep MCC-style configuration. Actual delivered or shipping weight can vary depending on the final configuration, accessories, packaging, and installation arrangement.

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4. Electrical Characteristics

4.1 400 VAC Three-Phase Input

The 20G1ABC750AN0NNNNN is designed for a 400 VAC three-phase electrical supply.

This voltage class is commonly used for large industrial motors and production equipment.

The drive converts incoming AC power into controlled motor power, allowing the motor’s speed and operating conditions to be adjusted according to the process requirements.

Instead of operating the motor continuously at the fixed frequency of the incoming supply, the drive can regulate the motor’s operating frequency and voltage.

This is especially useful for large variable-speed machinery.

Typical examples include:

• Large water pumps.
• Cooling fans.
• Industrial blowers.
• Conveyors.
• Compressors.
• Material-handling equipment.
• Process machinery.
• Large production equipment.

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5. 750 A High-Current Capacity

The 750 A current rating is one of the most important characteristics of this model.

This is a very high-current industrial drive intended for large motors and demanding machinery.

Compared with the 650 A configuration, the 750 A version provides additional current capacity and higher light-duty and normal-duty power ratings.

This makes it particularly attractive for applications where the motor current is approaching the upper range of the 650 A class.

When selecting the drive, the motor nameplate current should be considered together with:

• Motor voltage.
• Motor power.
• Load torque.
• Acceleration requirements.
• Deceleration requirements.
• Overload requirements.
• Duty cycle.
• Ambient temperature.
• Installation altitude.
• Motor cable length.
• Switching frequency.
• Mechanical load characteristics.

The 750 A rating should therefore be evaluated as part of the complete motor-drive system.

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6. Light-Duty, Normal-Duty and Heavy-Duty Ratings

The model provides three important power ratings.

The 450 kW light-duty rating gives this model considerable capacity for large variable-torque equipment.

The 400 kW normal-duty rating makes it suitable for a broad range of general industrial machinery.

The 315 kW heavy-duty rating provides a more conservative capacity for applications with greater torque demands or more demanding operating conditions.

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7. Why the Duty Rating Matters

A drive should not be selected solely by comparing the motor’s nameplate kW with the drive’s largest advertised kW number.

Different machines create very different electrical and mechanical demands.

For example, a large fan can have a different torque profile from a heavily loaded conveyor.

A pump can have a different acceleration profile from a mixer.

A compressor can have different operating characteristics from a material-handling machine.

The three duty ratings therefore provide a more practical way of matching the drive to the application.

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8. AC Input with Precharge

The 20G1ABC750AN0NNNNN uses an AC input with precharge configuration.

A high-power drive contains an internal DC bus that stores a substantial amount of electrical energy.

When the drive is energized, the precharge system manages the initial charging of the DC bus.

This helps control the initial charging current and allows the drive to transition into normal operating conditions in a controlled manner.

For a large 750 A drive, this is an important part of the overall power-conversion architecture.

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9. No External DC Terminals

This model is configured with no external DC terminals.

It is therefore primarily intended for conventional AC-input installations.

The drive receives its power from the three-phase AC supply and internally performs the required power conversion for the motor.

This configuration is appropriate for standard industrial installations where a common external DC bus is not required.

Specialized applications involving common DC buses, regenerative systems, or shared DC-bus architectures should be evaluated using an appropriate configuration.

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10. Embedded EtherNet/IP

The PowerFlex 755 platform provides embedded EtherNet/IP communication.

This allows the drive to become part of a larger industrial automation network.

The drive can exchange control, status, diagnostic, and process information with the automation system.

Typical information can include:

• Start commands.
• Stop commands.
• Speed references.
• Frequency references.
• Drive status.
• Motor speed.
• Output frequency.
• Motor current.
• Fault information.
• Alarm information.
• Diagnostic information.
• Parameter information.
• Process data.

The network capability is particularly valuable in plants containing many motor-driven machines.

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11. AN0 Configuration — No HIM

The AN0 configuration is characterized by its blank / no-HIM arrangement.

This means the drive does not include the Enhanced LCD local operator interface found on certain other configurations.

This is not necessarily a disadvantage.

In many modern industrial installations, drives are controlled and monitored centrally through:

• PLC systems.
• External HMIs.
• SCADA systems.
• Industrial Ethernet networks.
• Engineering workstations.
• Central control rooms.

For these installations, removing the local HIM can simplify the physical drive configuration and allow the control system to become the primary operator interface.

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12. Advantages of the No-HIM Configuration

The no-HIM configuration can be particularly attractive when the drive is installed inside a controlled electrical room or cabinet.

The drive can be managed through the plant’s automation infrastructure.

This can provide a clean architecture where:

Operator → HMI → Control System → EtherNet/IP → Drive → Motor

Instead of requiring every large drive to have a dedicated local operator interface, the plant can centralize drive control and diagnostics.

This is often useful in large production systems containing multiple drives.

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13. EMC Filtering

The model uses an EMC-filtered configuration.

Variable-frequency drives operate using high-speed switching technology.

This switching process naturally produces high-frequency electrical components.

In an industrial environment, nearby equipment may include:

• PLCs.
• HMIs.
• Sensors.
• Encoders.
• Industrial Ethernet equipment.
• Analog instrumentation.
• Safety devices.
• Communication equipment.
• Control computers.

A properly designed EMC installation can help reduce unwanted electrical interference.

The filtering function should be considered together with:

• Grounding.
• Motor cable selection.
• Cable shielding.
• Cable routing.
• Cabinet design.
• Motor frame grounding.
• Separation of power and signal cables.

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14. CM Jumper Removed

The 20G1ABC750AN0NNNNN is configured with the CM jumper removed.

This is an important configuration detail when comparing it with newer JN configurations.

The CM jumper arrangement affects the common-mode electrical relationship within the drive and installation.

The correct configuration should be considered together with the plant grounding system and EMC requirements.

Particular attention should be given to:

• Grounding architecture.
• Motor cable construction.
• Cable shielding.
• Motor frame grounding.
• Drive enclosure grounding.
• Cable length.
• Other electronic equipment.

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15. Dynamic Braking

The model is specified with no dynamic braking and no internal dynamic-braking transistor.

This is an important consideration for applications involving high-inertia loads.

Potentially demanding applications include:

• Large centrifuges.
• High-speed fans.
• Large conveyors.
• Rapidly cycling machinery.
• High-inertia rotating equipment.
• Vertical machinery.
• Equipment requiring frequent rapid deceleration.

If the mechanical system produces significant regenerative energy during deceleration, the braking strategy should be evaluated separately.

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16. Mechanical Construction

The drive uses a substantial Frame 8 design.

This is a large industrial drive.

The approximately 623 kg equipment weight means that transportation, lifting, floor loading, cabinet strength, and maintenance access should all be considered during installation planning.

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17. Product Introduction

The Allen-Bradley 20G1ABC750AN0NNNNN PowerFlex 755 is designed for high-power industrial motor-control applications where large motors require substantial current capacity and flexible variable-speed control.

Its 750 A rating and 450 kW light-duty capacity place it toward the higher-capacity end of the 400 VAC Frame 8 PowerFlex 755 configurations.

The model is particularly useful when a plant requires a large drive but does not need a drive-mounted local HIM.

Its combination of:

• 750 A current capacity.
• 450 kW light-duty rating.
• 400 kW normal-duty rating.
• 315 kW heavy-duty rating.
• 400 VAC three-phase input.
• Forced-air cooling.
• Embedded EtherNet/IP.
• EMC filtering.
• AC input with precharge.
• 600 mm deep MCC-style construction.

makes it suitable for a broad range of large industrial motor systems.

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18. Main Applications

18.1 Large Water Pumps

Large pumping systems are a natural application for a 750 A variable frequency drive.

Potential applications include:

• Water treatment.
• Industrial water circulation.
• Cooling-water systems.
• Process-water systems.
• Large pumping stations.
• Industrial utility systems.
• Mining water systems.
• Large irrigation systems.

The ability to vary motor speed allows pump output to follow actual system requirements.

This can provide greater process flexibility than operating the motor continuously at one fixed speed.

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19. Large Fans

Large industrial fans can require substantial motor power.

Potential applications include:

• Industrial ventilation.
• Furnace systems.
• Cooling systems.
• Exhaust systems.
• Dust collection.
• Process ventilation.
• Large air-handling systems.
• Industrial cooling towers.

Variable-speed operation allows airflow to be adjusted according to production requirements.

This can be particularly useful in processes where the required airflow changes throughout the operating cycle.

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20. Industrial Blowers

Large blowers are another suitable application.

Examples include:

• Process air systems.
• Dust extraction.
• Combustion air.
• Waste-treatment systems.
• Pneumatic systems.
• Industrial ventilation.
• Manufacturing processes.

The high current capacity provides substantial capability for large blower motors.

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21. Large Conveyor Systems

Large conveyors can require high motor torque and significant electrical capacity.

Potential applications include:

• Mining.
• Cement plants.
• Aggregate handling.
• Bulk material handling.
• Port equipment.
• Production lines.
• Industrial transfer systems.

Controlled acceleration can reduce mechanical stress on conveyor components.

This can be valuable for:

• Gearboxes.
• Couplings.
• Shafts.
• Bearings.
• Belts.
• Mechanical transmission components.

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22. Compressors

Large industrial compressors may also use high-power variable-speed drives.

Potential applications include:

• Industrial compressed-air systems.
• Process compressors.
• Manufacturing equipment.
• Production utilities.
• Large process plants.

The specific compressor technology should always be evaluated because compressor torque characteristics can differ significantly between applications.

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23. Mixers and Agitators

Large mixers and agitators can require substantial motor power.

Potential applications include:

• Chemical processing.
• Cement production.
• Water treatment.
• Slurry processing.
• Material preparation.
• Industrial mixing.
• Process manufacturing.

Variable-speed control allows the operator to adjust the mixing speed to suit the production process.

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24. Material-Handling Equipment

The 750 A capacity is also appropriate for large material-handling systems.

Potential applications include:

• Mining.
• Bulk material handling.
• Aggregate processing.
• Industrial conveyors.
• Loading systems.
• Material transfer.
• Large production systems.

When multiple drives are installed in the same machine or plant, embedded EtherNet/IP can simplify the overall control architecture.

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25. Large Process Machinery

The drive can be used in large process applications where a motor must operate over a variable speed range.

Examples include:

• Large processing machinery.
• Manufacturing systems.
• Paper-processing equipment.
• Metal-processing equipment.
• Production lines.
• Industrial material-processing systems.
• Large machine systems.
• Continuous-process equipment.

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26. Major Product Advantages

26.1 750 A High-Current Capacity

The 750 A rating is the primary advantage of this model.

It provides substantial capacity for large motors and demanding industrial machinery.

It also gives the application more room than lower-current configurations when the motor’s electrical requirements approach the upper range of those models.

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26.2 450 kW Light-Duty Rating

The 450 kW light-duty rating makes this drive particularly attractive for large variable-torque loads.

Large fans and pumps are typical examples.

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26.3 400 kW Normal-Duty Rating

The 400 kW normal-duty rating provides strong capacity for general industrial machinery.

This allows the drive to serve many large continuous-duty motor applications.

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26.4 315 kW Heavy-Duty Rating

The 315 kW heavy-duty rating allows the drive to be applied to more demanding load profiles where greater torque requirements must be considered.

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27. No-HIM Architecture

The AN0 configuration is useful for installations where local drive operation is not required.

Instead of using a drive-mounted HIM, the system can be operated through a centralized control architecture.

This is especially suitable for:

• Large production lines.
• Centralized control rooms.
• Automated plants.
• Multiple-drive systems.
• Remote equipment.
• Electrical rooms with limited operator access.

This can create a cleaner control architecture in applications where operators normally interact with the machine through an external HMI.

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28. Embedded EtherNet/IP Advantage

The integrated network capability makes the drive well suited to automated plants.

It can support centralized monitoring and control.

For example, a control system can monitor:

• Motor current.
• Motor speed.
• Drive status.
• Fault conditions.
• Alarm conditions.
• Operating frequency.
• Speed reference.

This makes the drive easier to incorporate into larger automated processes.

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29. Forced-Air Cooling

The high-power architecture uses forced-air cooling.

Large power-conversion equipment produces significant heat during operation.

The installation should therefore provide adequate airflow.

Important considerations include:

• Air intake.
• Exhaust airflow.
• Cabinet ventilation.
• Ambient temperature.
• Dust accumulation.
• Cooling fan condition.
• Airflow obstruction.
• Heat from adjacent equipment.

Maintaining appropriate thermal conditions is important for long-term drive reliability.

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30. Industrial MCC-Style Construction

The 600 mm deep MCC-style construction is designed for large industrial electrical installations.

It can be incorporated into:

• Motor-control centers.
• Electrical rooms.
• Large control cabinets.
• Centralized drive systems.
• Industrial switchgear areas.

The Frame 8 size should be considered when planning floor space and maintenance access.

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31. Installation Considerations

Electrical Installation

The installation should account for:

• 400 VAC three-phase power.
• High input current.
• Protective devices.
• Disconnect equipment.
• Grounding.
• Motor cable sizing.
• Cable length.
• EMC requirements.
• Short-circuit characteristics.
• Motor requirements.

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Mechanical Installation

Approximate dimensions:

2102 × 606 × 600 mm

The installation area should provide sufficient room for:

• Incoming power connections.
• Motor connections.
• Communication wiring.
• Cooling airflow.
• Inspection.
• Maintenance.
• Safe working access.

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Weight and Handling

Approximate equipment weight:

623 kg

This is substantial equipment.

Suitable lifting and transportation arrangements should therefore be planned before installation.

Floor loading and cabinet structural capacity should also be checked.

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32. Maintenance Characteristics

The absence of a local HIM means that maintenance planning is somewhat different from JN2 or JN4 configurations.

The drive can be monitored and configured through the larger control system or appropriate engineering tools.

This approach is particularly useful in plants where centralized diagnostics are already established.

Maintenance personnel can monitor:

• Drive status.
• Motor current.
• Operating frequency.
• Speed.
• Faults.
• Alarms.
• Network status.
• Operating parameters.

This is a strong configuration for plants that already have centralized automation infrastructure.

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33. Five Same-Series or Closely Related Models

These models are closely related to the target model.

The most important differences are the current rating, HIM configuration, and CM jumper configuration.

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34. Five Popular Allen-Bradley Models

These five models provide a useful range of high-power PowerFlex 755 configurations.

The 460 A model is appropriate for applications requiring lower current capacity.

The 540 A and 567 A models provide intermediate capacity.

The 650 A model provides substantial high-power capacity.

The 750 A configuration provides the highest capacity among this particular comparison group.

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35. 20G1ABC750AN0NNNNN vs 20G1ABC750JN0NNNNN

The 20G1ABC750JN0NNNNN is a particularly important related model because it has the same basic 750 A power class but a different configuration.

The most important distinction is the AN versus JN configuration, particularly the CM jumper configuration and overall configuration generation.

The JN0 configuration is the current related configuration for installations requiring the 750 A no-HIM arrangement.

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36. 20G1ABC750AN0NNNNN vs 20G1ABC750AN2NNNNN

The main difference is the local interface.

The AN0 version has no HIM.

The AN2 version includes an Enhanced LCD Full Numeric HIM.

For centralized automation systems, AN0 can be an appropriate configuration.

For applications requiring convenient local setup and troubleshooting, AN2 provides additional functionality.

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37. 20G1ABC750AN0NNNNN vs 20G1ABC650AN0NNNNN

The 750 A model provides higher light-duty and normal-duty capacity.

The heavy-duty rating is the same at 315 kW.

This makes the 750 A version especially attractive when the application needs additional capacity for variable-torque or general industrial loads.

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38. 20G1ABC750AN0NNNNN vs 20G1ABC567AN0NNNNN

The 750 A configuration provides substantially greater current and power capability than the 567 A version.

If the motor load is comfortably within the 567 A range, the smaller configuration may be sufficient.

Where additional capacity is required, the 750 A model provides a stronger margin.

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39. Practical Model Selection Guide

The 20G1ABC750AN0NNNNN is particularly suitable when high power is required but the plant does not need a drive-mounted local operator interface.

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40. Main Advantages at a Glance

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41. Overall Product Assessment

The Allen-Bradley 20G1ABC750AN0NNNNN PowerFlex 755 AC Drive is a high-power industrial variable frequency drive designed for large motor applications where high current capacity and centralized automation are more important than local drive-mounted operation.

Its 750 A rating and 450 kW light-duty capacity make it one of the larger configurations in the 400 VAC Frame 8 range.

The 400 kW normal-duty rating gives the model substantial capacity for general industrial machinery, while the 315 kW heavy-duty rating allows it to be applied to more demanding loads when the application falls within the appropriate duty requirements.

The combination of embedded EtherNet/IP, forced-air cooling, AC input with precharge, EMC filtering, no external DC terminals, and 600 mm deep MCC-style construction makes the model well suited to large centralized industrial installations.

The absence of a HIM is an important characteristic rather than simply a missing feature.

For a plant with centralized PLC, HMI, SCADA, or network-based drive management, the AN0 configuration can provide a clean and practical control architecture.

Instead of maintaining an operator interface on every individual drive, the plant can manage the drive through the central automation system.

The approximate physical size of 2102 × 606 × 600 mm and approximate equipment weight of 623 kg indicate that this is a substantial industrial installation and should be treated accordingly during transportation, lifting, cabinet construction, ventilation, floor loading, and maintenance planning.

For large pumps, fans, blowers, conveyors, compressors, material-handling equipment, process machinery, and large automated production systems, the 20G1ABC750AN0NNNNN offers a strong combination of 750 A current capacity, 450 kW light-duty capability, 400 kW normal-duty capability, embedded EtherNet/IP, forced-air cooling, and centralized control compatibility.

For applications where local drive operation is required, the closely related 20G1ABC750AN2NNNNN is the more appropriate configuration because it adds an Enhanced LCD Full Numeric HIM.

For applications where a no-HIM architecture is preferred but a newer configuration is desired, the 20G1ABC750JN0NNNNN is a closely related alternative.

Overall, the 20G1ABC750AN0NNNNN is best viewed as a high-capacity, centralized-control-oriented PowerFlex 755 Frame 8 AC drive for large industrial motor systems.