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Allen-Bradley 20G1ABC750AN2NNNNN PowerFlex 755 AC Drive — Detailed Product Specifications, Introduction, Applications, Advantages and Related Models

1. Product Overview

The Allen-Bradley 20G1ABC750AN2NNNNN 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 variable frequency drive, with a 450 kW Light-Duty rating, 400 kW Normal-Duty rating, and 315 kW Heavy-Duty rating.

The drive uses a Type 1 / IP20, 600 mm deep MCC-style construction and is configured with AC input with precharge, no DC terminals, EMC filtering, CM jumper removed, no dynamic-braking transistor, and an Enhanced LCD Full Numeric Handheld/Local HIM.

The AN2 configuration is especially useful when the installation requires a local operator interface for commissioning, parameter adjustment, status monitoring, and maintenance.

This model belongs to the high-power section of the PowerFlex 755 family and is well suited to large pumps, fans, blowers, conveyors, compressors, mixers, material-handling systems, process equipment, and other large industrial motor applications.

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2. Brand and Product Series

The PowerFlex 755 series is designed for large industrial motor applications where high power, variable-speed control, network communication, diagnostics, and flexible configuration are important.

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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 20G1ABC750AN2NNNNN is designed for a 400 VAC, three-phase industrial electrical supply.

This voltage class is suitable for large industrial motors and high-capacity production equipment.

The drive converts the incoming AC power into controlled motor power, allowing the motor’s operating frequency and voltage to be adjusted according to the process requirement.

This variable-speed capability is particularly useful for equipment where the required motor speed changes according to production demand.

Typical examples include:

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

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5. 750 A High-Current Capacity

The 750 A current rating is one of the most significant characteristics of this drive.

It is designed for large industrial motors and high-capacity machinery.

Compared with lower-current PowerFlex 755 configurations, the 750 A model provides additional current capacity and higher Light-Duty and Normal-Duty power ratings.

This makes it particularly useful for applications where the motor current is close to the upper range of a 650 A-class drive.

When selecting a drive for a motor, the following factors should be considered together:

• Motor nameplate current.
• Motor voltage.
• Motor power.
• Motor efficiency.
• Load torque.
• Starting requirements.
• Acceleration requirements.
• Deceleration requirements.
• Overload requirements.
• Duty cycle.
• Ambient temperature.
• Installation altitude.
• Motor cable length.
• Switching frequency.
• Mechanical load profile.

The 750 A rating should therefore be treated as part of the complete drive and motor selection process rather than as a simple kW conversion.

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

The 20G1ABC750AN2NNNNN provides three different power classifications.

The 450 kW Light-Duty rating gives this drive substantial capacity for variable-torque applications.

The 400 kW Normal-Duty rating provides a strong rating for general industrial machinery.

The 315 kW Heavy-Duty rating is suitable for applications where greater torque demand and more demanding operating conditions must be taken into account.

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7. Understanding the Duty Ratings

A drive should not be selected only by comparing the motor’s nameplate power with the largest kW figure in the product description.

Different machines produce very different electrical and mechanical loads.

For example, a large centrifugal fan may have a relatively smooth load profile, while a large conveyor may require considerably more torque during acceleration.

A mixer may experience changing mechanical loads, while a pump may operate primarily as a variable-torque load.

The three duty ratings allow the drive to be matched more appropriately to the actual machine.

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8. AC Input with Precharge

The 20G1ABC750AN2NNNNN uses an AC input with precharge configuration.

A high-power variable frequency drive contains a substantial DC bus section.

When the drive is energized, the precharge system provides a controlled charging sequence for the internal DC bus.

This helps manage the initial charging current and provides a controlled transition into normal operation.

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

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9. No DC Terminals

The drive is configured with no external DC terminals.

This makes it appropriate for conventional AC-input installations where the drive is powered directly from a three-phase AC supply.

It is a practical configuration for standard industrial motor-control systems that do not require external DC-bus interconnection.

Applications involving common DC buses, regenerative energy sharing, or specialized DC-bus arrangements should be evaluated separately using the appropriate drive configuration.

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10. Embedded EtherNet/IP Communication

The PowerFlex 755 platform provides embedded EtherNet/IP communication.

This allows the drive to be integrated into a larger industrial automation network.

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

Typical information can include:

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

This capability is particularly useful in large production facilities containing multiple variable-speed drives.

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11. Enhanced LCD Full Numeric HIM

The AN2 configuration includes an Enhanced LCD Full Numeric Handheld/Local HIM.

This is one of the most important practical differences between the AN0 and AN2 configurations.

The HIM provides direct access to the drive.

Technicians can use it for:

• Initial commissioning.
• Parameter setup.
• Status monitoring.
• Fault checking.
• Alarm checking.
• Speed monitoring.
• Current monitoring.
• Drive configuration.
• Troubleshooting.
• Local maintenance.

This can be extremely useful when the drive is installed in a large electrical room or MCC and technicians need direct access to the equipment.

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12. Local Operator Interface Advantages

A local HIM can make maintenance much easier.

Without a local interface, a technician may need to rely primarily on a PLC, HMI, network connection, or external engineering workstation.

With the AN2 configuration, essential drive information can be accessed directly at the drive.

This is particularly useful during:

• Startup.
• Commissioning.
• Troubleshooting.
• Preventive maintenance.
• Fault investigation.
• Motor replacement.
• Drive replacement.
• Parameter verification.

The local interface therefore adds practical value even when the drive is also integrated into an industrial network.

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13. EMC Filtering

The 20G1ABC750AN2NNNNN is configured with EMC filtering.

Variable-frequency drives use high-speed switching to control motor voltage and frequency.

The switching process can generate high-frequency electrical components.

In a modern industrial facility, sensitive electronic equipment may be installed near high-power drives.

Examples include:

• PLC systems.
• HMI systems.
• Sensors.
• Encoders.
• Industrial Ethernet devices.
• Analog instrumentation.
• Safety equipment.
• Control computers.
• Communication equipment.

The filtered configuration provides a useful foundation for an EMC-conscious installation.

Proper grounding, cable shielding, cable routing, and cabinet design are still important.

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14. CM Jumper Removed

The model is configured with the CM jumper removed.

This is an important detail when comparing this model with related JN configurations.

The CM jumper configuration affects the common-mode electrical arrangement of the drive.

The appropriate configuration should be considered together with the complete installation design.

Important factors include:

• Grounding system.
• Motor cable construction.
• Cable shielding.
• Motor frame grounding.
• Cable length.
• Cabinet grounding.
• Other electronic equipment.
• Site EMC requirements.

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15. Dynamic Braking

The 20G1ABC750AN2NNNNN is configured with no dynamic-braking transistor.

This should be considered when the application involves significant regenerative energy.

Potentially demanding applications include:

• Large high-inertia fans.
• Centrifuges.
• Rapidly decelerating conveyors.
• High-speed rotating equipment.
• Vertical machinery.
• Repeated acceleration/deceleration.
• High-inertia production machines.

If substantial braking energy must be dissipated during deceleration, the overall braking strategy should be evaluated separately.

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16. Mechanical Parameters

The drive uses a substantial Frame 8 construction.

The approximate 623 kg weight is significant.

The installation should therefore take into account lifting equipment, transportation, floor loading, cabinet construction, ventilation, and maintenance access.

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17. Product Introduction

The Allen-Bradley 20G1ABC750AN2NNNNN PowerFlex 755 is a high-capacity AC drive intended for large industrial motor-control applications.

Its 750 A current rating gives it considerable capacity for large motors.

The drive provides:

• 450 kW Light Duty.
• 400 kW Normal Duty.
• 315 kW Heavy Duty.

This makes it suitable for several different classes of industrial load.

The model also combines high-power motor control with embedded EtherNet/IP communication and a local Enhanced LCD Full Numeric HIM.

This combination makes it useful in plants where the drive needs to operate as part of a centralized automation system while still allowing technicians to work directly at the drive.

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18. Large Water Pump Applications

Large water pumps are among the most suitable applications for this drive.

Potential applications include:

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

Variable-speed operation allows pump output to be adjusted according to actual process demand.

This can provide more flexible process control than running the pump continuously at a fixed speed.

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19. Large Fan Applications

Large fans can also make effective use of the drive’s high power capacity.

Potential applications include:

• Industrial ventilation.
• Furnace ventilation.
• Process exhaust.
• Cooling systems.
• Dust collection.
• Air-handling systems.
• Industrial cooling equipment.
• Large ventilation systems.

Fan speed can be adjusted according to actual airflow requirements.

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20. Industrial Blowers

Large industrial blowers can require significant continuous motor power.

Potential applications include:

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

The 750 A capacity provides substantial current capability for large blower motors when the application falls within the applicable drive rating.

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21. Large Conveyor Systems

Large conveyors can require high motor torque, especially during acceleration.

Potential applications include:

• Mining.
• Cement production.
• Aggregate handling.
• Bulk material handling.
• Port equipment.
• Production lines.
• Material transfer systems.

Variable-speed control allows the conveyor motor to accelerate and decelerate in a controlled manner.

This can reduce mechanical stress on:

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

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22. Compressor Applications

Large industrial compressors may also require high-power variable-speed motor control.

Potential applications include:

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

Compressor selection should consider the actual compressor type and torque characteristics.

The 750 A drive provides substantial electrical capacity for large compressor motors.

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23. Mixer and Agitator Applications

Large mixers and agitators can have significant torque requirements.

Potential applications include:

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

The drive allows motor speed to be adjusted to match the process requirements.

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24. Material-Handling Applications

The 20G1ABC750AN2NNNNN is suitable for large material-handling systems.

Potential applications include:

• Mining.
• Bulk material handling.
• Aggregate processing.
• Conveyor systems.
• Loading systems.
• Material transfer.
• Industrial production lines.

Embedded EtherNet/IP is particularly useful when multiple drives must operate together.

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25. Process Machinery

The drive can be used for large industrial process equipment where motor speed needs to be adjusted continuously.

Potential applications include:

• Large production machinery.
• Processing systems.
• Paper-related machinery.
• Metal-processing equipment.
• Industrial production lines.
• Material-processing equipment.
• Large manufacturing machines.
• Continuous-process systems.

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26. Main Product Advantages

26.1 750 A High-Current Capacity

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

It provides substantial capacity for large industrial motors.

It also provides a greater current margin than the 540 A, 567 A, and 650 A configurations.

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26.2 450 kW Light-Duty Rating

The 450 kW Light-Duty rating makes the drive particularly attractive for large variable-torque applications.

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 makes the drive suitable for a wide range of large continuous-duty 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 demanding motor loads where higher torque requirements need to be considered.

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27. Enhanced LCD HIM as a Major Advantage

The Enhanced LCD Full Numeric HIM is a major practical advantage of the AN2 configuration.

It provides local access to drive information without requiring the technician to depend entirely on a remote control system.

This can simplify:

• Commissioning.
• Parameter setup.
• Fault diagnosis.
• Preventive maintenance.
• Local testing.
• Status checking.
• Drive replacement.
• Troubleshooting.

For large industrial drives, convenient local access can significantly reduce service time.

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28. Combination of Local and Network Control

One of the strongest features of this configuration is the combination of local and centralized control.

The drive can be connected to an automation network through embedded EtherNet/IP while technicians can still access it locally through the HIM.

This gives the system two useful levels of interaction.

Centralized control:

The PLC, HMI, or automation system handles normal production control.

Local service access:

The technician uses the HIM for commissioning, diagnostics, and maintenance.

This is particularly useful in large factories where drives are installed throughout the facility.

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29. Forced-Air Cooling

The drive uses forced-air cooling.

High-power drives generate substantial heat during operation.

The installation therefore requires appropriate airflow management.

Important considerations include:

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

Good thermal management is important for maintaining stable operation over the service life of the drive.

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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 distribution areas.

The large Frame 8 construction should be considered during cabinet and floor-space planning.

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31. Installation Considerations

Electrical Installation

The installation should account for:

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

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Mechanical Installation

Approximate dimensions:

2102 × 606 × 600 mm

The installation location should provide adequate space for:

• Incoming power connections.
• Motor connections.
• Network cables.
• Cooling airflow.
• Inspection.
• Maintenance.
• Safe working access.

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Weight and Handling

Approximate equipment weight:

623 kg

This is substantial equipment.

Appropriate lifting and transportation arrangements should therefore be planned.

The supporting structure and floor loading should also be checked before installation.

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32. Maintenance Advantages

The AN2 configuration is particularly convenient for maintenance because of its local HIM.

Technicians can directly check:

• Drive status.
• Motor current.
• Motor speed.
• Output frequency.
• Fault history.
• Alarm conditions.
• Parameters.
• Network status.
• Operating conditions.

This can make troubleshooting significantly more efficient, particularly when the drive is located in a large electrical room away from the main control station.

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33. Five Same-Series or Closely Related Models

These five models are closely related to the target model.

The main differences are the current capacity, HIM configuration, and CM jumper configuration.

The 20G1ABC750JN2NNNNN is particularly close to the target model because it has the same 750 A capacity and Enhanced LCD interface while using the installed CM-jumper configuration.

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34. Five Popular Allen-Bradley Models

These models provide a useful high-power comparison range.

The 460 A configuration is suitable for lower-current applications.

The 540 A and 567 A configurations provide intermediate capacity.

The 650 A configuration offers greater motor capacity.

The 750 A configuration provides the highest current and power ratings among this comparison group.

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35. 20G1ABC750AN2NNNNN vs 20G1ABC750AN0NNNNN

The two models have essentially the same high-power electrical platform.

The major difference is the local operator interface.

The AN0 configuration is intended for installations where local HIM access is not required.

The AN2 configuration adds the Enhanced LCD Full Numeric HIM.

For maintenance-intensive installations, the AN2 configuration is generally more convenient.

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36. 20G1ABC750AN2NNNNN vs 20G1ABC750JN2NNNNN

These two configurations are especially closely related.

Both provide:

• 750 A.
• 450 kW LD.
• 400 kW ND.
• 315 kW HD.
• Enhanced LCD HIM.
• Frame 8.
• 400 VAC three-phase input.

The primary configuration difference is the CM jumper arrangement.

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37. 20G1ABC750AN2NNNNN vs 20G1ABC650AN2NNNNN

The 750 A configuration provides higher Light-Duty and Normal-Duty capacity.

The Heavy-Duty rating remains 315 kW.

If the motor current and application requirements fall within the 650 A range, the 650 A configuration may be sufficient.

If additional current capacity and greater Light-Duty/Normal-Duty capacity are required, the 750 A configuration is the stronger choice.

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38. 20G1ABC750AN2NNNNN vs 20G1ABC567AN2NNNNN

The 750 A model provides substantially greater electrical capacity than the 567 A configuration.

The difference is especially significant for large variable-torque applications because the Light-Duty rating increases from 355 kW to 450 kW.

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39. 20G1ABC750AN2NNNNN vs 20G1ABC750JN4NNNNN

Both are 750 A Frame 8 PowerFlex 755 configurations.

The JN4 configuration provides the enhanced Type 4X/12 local interface arrangement, while the AN2 model uses the AN-series configuration with the Enhanced LCD Full Numeric HIM.

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40. Practical Model Selection Guide

The 20G1ABC750AN2NNNNN is particularly appropriate when the application requires the high capacity of a 750 A Frame 8 drive and also benefits from direct local access through an Enhanced LCD Full Numeric HIM.

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41. Application Suitability

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42. Main Advantages at a Glance

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43. Overall Product Assessment

The Allen-Bradley 20G1ABC750AN2NNNNN PowerFlex 755 AC Drive is a high-capacity industrial variable frequency drive designed for large motors and demanding industrial equipment.

Its 750 A current rating gives it substantial electrical capacity, while the 450 kW Light-Duty, 400 kW Normal-Duty, and 315 kW Heavy-Duty ratings provide flexibility for different types of motor loads.

The drive is particularly well suited to applications where a large motor must operate at variable speed and where the control system needs both network integration and convenient local access.

The embedded EtherNet/IP capability allows the drive to communicate with a larger automation system, while the Enhanced LCD Full Numeric HIM gives technicians direct access to drive parameters, status information, faults, alarms, and commissioning functions.

The combination of local and network control is one of the model’s most practical strengths.

During normal production, the drive can be managed through the plant automation system.

During commissioning or maintenance, technicians can work directly at the drive through the local HIM.

The 400 VAC three-phase input, 750 A current rating, and Frame 8 construction make the model suitable for substantial industrial motor loads.

Its 450 kW Light-Duty rating is particularly useful for large variable-torque applications such as fans and pumps.

The 400 kW Normal-Duty rating makes it appropriate for many general industrial machines, while the 315 kW Heavy-Duty rating provides a suitable capacity level for more demanding applications when properly matched to the actual load profile.

The drive uses forced-air cooling, so the installation should provide adequate ventilation and airflow.

With approximate dimensions of 2102 × 606 × 600 mm and an approximate weight of 623 kg, this is a substantial piece of industrial equipment.

Transportation, lifting, floor loading, cabinet structure, cooling, electrical protection, grounding, and maintenance clearance should all be considered during installation planning.

The AN2 configuration is especially attractive when the user wants a high-power 750 A drive with a local Enhanced LCD interface.

Compared with the closely related 20G1ABC750AN0NNNNN, the AN2 configuration adds the local HIM.

Compared with the 20G1ABC750JN2NNNNN, the principal configuration distinction is the CM-jumper arrangement.

Compared with the 20G1ABC750JN4NNNNN, the JN4 configuration provides the enhanced Type 4X/12 HIM arrangement.

For large pumps, fans, blowers, conveyors, compressors, mixers, material-handling systems, and large process machines, the 20G1ABC750AN2NNNNN offers a strong combination of 750 A high-current capacity, 450 kW Light-Duty capability, 400 kW Normal-Duty capability, 315 kW Heavy-Duty capability, embedded EtherNet/IP, local Enhanced LCD control, forced-air cooling, and Frame 8 industrial construction.

Overall, it is a high-power PowerFlex 755 configuration well suited to large industrial motor-control systems where both substantial electrical capacity and practical local service access are important.