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Allen-Bradley 20G1ABC650AN2NNNNN PowerFlex 755 AC Drive — Detailed Specifications, Product Introduction, Applications, Advantages and Related Models

The Allen-Bradley 20G1ABC650AN2NNNNN is a high-power PowerFlex 755 air-cooled AC drive designed for large industrial motor-control applications.

This model belongs to the 650 A class and is configured for 400 VAC, three-phase operation. Its principal power ratings are 400 kW Low Duty, 355 kW Normal Duty, and 315 kW Heavy Duty, making it suitable for large pumps, fans, blowers, conveyors, compressors, mixers, material-handling systems, and other high-power industrial machinery.

A major characteristic of this exact configuration is the AN2 Enhanced LCD Full Numeric HIM. Compared with the AN0 no-HIM configuration, the AN2 version provides a local operator interface for commissioning, monitoring, troubleshooting, and parameter adjustment.

The model is a Frame 8, 600 mm deep MCC-style, IP20 / Type 1, forced-air-cooled drive with AC input with precharge, no DC terminals, EMC filtering, CM jumper removed, no dynamic braking, and embedded EtherNet/IP.

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1. Basic Product Information

The dimensions and weight are approximate Frame 8 reference values for the 600 mm deep MCC-style configuration. Actual installed or shipping dimensions can vary according to the complete enclosure arrangement, accessories, mounting structure, and packaging.

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2. Brand and Product Series

Brand: Allen-Bradley

Series: PowerFlex 755

Product Family: PowerFlex

Model: 20G1ABC650AN2NNNNN

The PowerFlex 755 series is positioned for demanding industrial motor-control applications where high motor power, adjustable-speed operation, process control, networking, diagnostics, and flexible configuration are required.

The 20G1ABC650AN2NNNNN is one of the larger 400 VAC Frame 8 configurations and is intended for applications where the motor current and mechanical load are beyond the practical range of smaller drive classes.

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3. Product Model Interpretation

The catalog number 20G1ABC650AN2NNNNN contains several configuration identifiers.

650 — 650 A Current Class

The 650 identifies the drive’s 650 A current class.

This places the model above the 460 A, 540 A, and 567 A configurations and below the larger 750 A and 770 A classes.

The 650 A configuration is intended for substantial industrial motor loads.

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AN — Configuration Group

The AN portion identifies the configuration group.

A significant characteristic of this version is the CM jumper removed configuration.

This is important when comparing the model with the later JN configurations, which commonly use the CM jumper installed configuration.

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2 — Enhanced LCD Full Numeric HIM

The 2 identifies the Enhanced LCD Full Numeric HIM configuration.

This is one of the main differences between AN2 and AN0.

The AN0 version is supplied without a HIM, while AN2 provides a local operator interface.

For maintenance teams, commissioning engineers, and plant operators, this can make day-to-day drive management much easier.

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4. Detailed Electrical Parameters

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5. 400 VAC Three-Phase Input

The 20G1ABC650AN2NNNNN is designed for a 400 VAC three-phase industrial power supply.

This makes it suitable for large industrial installations using 400 VAC-class three-phase distribution.

The three-phase configuration is well suited to high-power motors because the drive is designed to distribute the input power across the three phases while providing controlled variable-frequency output to the motor.

For an actual installation, the complete electrical system should be evaluated rather than selecting upstream equipment based solely on the drive’s nominal 650 A rating.

Important considerations include:

• Incoming power capacity
• Upstream protection
• Disconnect equipment
• Short-circuit conditions
• Cable ampacity
• Grounding
• Motor cable length
• Ambient temperature
• Harmonic conditions
• EMC requirements
• Cabinet ventilation

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6. 650 A High-Current Capacity

The 650 A current class is one of the defining characteristics of this model.

This is a high-power industrial drive intended for large motors and substantial mechanical loads.

Compared with the 460 A and 540 A versions, the 650 A model provides considerably more current capacity.

Compared with the 567 A model, it offers additional headroom for applications requiring higher current.

Typical applications include:

• Large centrifugal pumps
• Cooling-water pumps
• Large fans
• Industrial blowers
• Heavy conveyors
• Bulk material handling
• Large mixers
• Compressors
• Process machinery
• Production equipment
• Large rotating machinery

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7. Low Duty, Normal Duty and Heavy Duty Ratings

The drive has three important power ratings.

These ratings should not be viewed as three arbitrary motor sizes.

The appropriate rating depends on the actual load characteristics.

For example, a large centrifugal pump may be evaluated using the Low Duty rating because the load is primarily variable torque.

A conveyor with high starting torque may need to be evaluated against the Normal Duty or Heavy Duty rating.

A machine with repeated acceleration, deceleration, or substantial mechanical inertia may require an even more conservative evaluation.

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8. 400 kW Low Duty Rating

The 400 kW Low Duty rating provides considerable capacity for large variable-torque loads.

This is particularly useful for applications such as:

• Centrifugal pumps
• Fans
• Blowers
• Cooling systems
• Air-handling equipment

Variable-torque applications often do not require maximum motor torque at every operating speed.

Using a variable-frequency drive allows the process to operate at the speed actually required by the application.

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9. 355 kW Normal Duty Rating

The 355 kW Normal Duty rating provides a strong operating range for general industrial machinery.

Potential applications include:

• Conveyors
• Material-handling equipment
• Production machinery
• Large pumps
• Mixers
• Processing equipment
• Industrial machinery

This rating is useful when the load is more substantial than a typical variable-torque fan or pump but does not require the most demanding Heavy Duty operating profile.

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10. 315 kW Heavy Duty Rating

The 315 kW Heavy Duty rating is especially important when the application involves higher torque or more demanding overload conditions.

Examples include:

• Heavy conveyors
• Large mixers
• High-inertia machinery
• Material-handling equipment
• Machines with frequent acceleration
• Machinery with high breakaway torque
• Equipment with rapidly changing mechanical loads

For final selection, the motor nameplate current and actual load profile should take priority over simply comparing motor kW values.

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11. AC Input with Precharge

The drive uses AC input with precharge and does not provide external DC terminals as part of this configuration.

Precharge is important in a high-power drive because the internal DC bus contains significant energy-storage components.

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

This reduces the electrical stress associated with uncontrolled capacitor charging and provides a more controlled energization sequence.

For a 650 A drive, this is an important part of the overall power architecture.

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12. No DC Terminals

The 20G1ABC650AN2NNNNN is configured with no DC terminals.

This means the standard catalog configuration is based on the AC input arrangement rather than providing external DC-bus connection terminals.

When designing the electrical system, an external shared DC bus should not be assumed.

The drive should be treated according to its exact catalog configuration.

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13. EMC Filtering

The drive uses a filtered / EMC filter configuration.

This is useful in industrial environments where high-power switching equipment operates close to sensitive equipment such as:

• PLC systems
• Instrumentation
• Sensors
• Communication equipment
• Analog signals
• Measurement devices
• Other variable frequency drives

The filtering arrangement helps control conducted electrical noise.

However, good installation practices remain essential.

The drive’s internal filtering cannot replace proper:

• Grounding
• Shielding
• Cabinet bonding
• Motor cable routing
• Control cable separation
• Network cable routing

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14. CM Jumper Removed

The CM jumper is removed in this configuration.

This is an important characteristic of the AN2 model.

The common-mode and grounding/filtering behavior of a VFD can influence high-frequency current paths within the drive, motor cable, motor frame, and grounding system.

Therefore, the CM jumper configuration should be considered as part of the complete installation design.

Particular attention should be given to:

• Grounding system
• Motor insulation
• Motor cable construction
• Cable length
• EMC requirements
• Leakage-current considerations
• Installation environment

The configuration should not be changed without considering the complete electrical design.

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15. Dynamic Braking

The standard 20G1ABC650AN2NNNNN configuration has no dynamic braking.

This means that a dedicated dynamic braking arrangement is not included in the standard catalog configuration.

The drive can still perform controlled acceleration and deceleration.

However, applications requiring rapid stopping of high-inertia loads may require a separate braking solution.

Potentially demanding applications include:

• Large conveyors
• High-inertia fans
• Centrifuges
• Large rolls
• Rapid indexing machinery
• Heavy rotating equipment

The braking energy generated during deceleration should be evaluated during system design.

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16. Embedded EtherNet/IP

The model includes embedded EtherNet/IP.

This makes the drive particularly suitable for centralized industrial automation.

The drive can exchange operating information with the control system, including:

• Start/stop commands
• Speed references
• Actual speed
• Output frequency
• Current
• Drive status
• Fault information
• Warning information
• Diagnostic information

This can be very useful when multiple drives are installed throughout a production line.

Instead of requiring every drive to have its own local operator station, a plant can use a centralized HMI or supervisory control architecture.

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17. Enhanced LCD Full Numeric HIM

The Enhanced LCD Full Numeric HIM is one of the main advantages of the AN2 configuration.

It provides local access to drive information and settings.

The operator interface can be useful for:

• Startup
• Commissioning
• Parameter adjustment
• Troubleshooting
• Fault investigation
• Drive monitoring
• Maintenance
• Local operation

The display can provide technicians with useful operating information without requiring them to connect a separate computer every time they need to inspect the drive.

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18. Advantages of the AN2 Configuration

Compared with the AN0 configuration, the AN2 version is especially attractive when local access is important.

For example, a maintenance technician working directly in the electrical room can inspect the drive without relying entirely on the central control system.

This can be particularly valuable during:

• Initial commissioning
• Motor testing
• Troubleshooting
• Maintenance
• Parameter verification
• Startup after a shutdown
• Fault investigation

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19. Product Introduction

The Allen-Bradley 20G1ABC650AN2NNNNN is a high-capacity PowerFlex 755 AC drive designed for large industrial motor applications.

It combines a 650 A current class with 400 kW Low Duty, 355 kW Normal Duty, and 315 kW Heavy Duty ratings.

The drive uses a 400 VAC three-phase input, Frame 8 construction, forced-air cooling, and a 600 mm deep MCC-style configuration.

The integrated EtherNet/IP interface makes the drive suitable for modern industrial automation systems, while the Enhanced LCD Full Numeric HIM provides local access for commissioning and maintenance.

The result is a drive configuration that can operate either as part of a centralized automation system or with significant local interaction from maintenance personnel.

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20. Mechanical Parameters

The physical size is substantial.

The approximately 623 kg weight means that transportation, lifting, positioning, and mounting should be planned before the equipment arrives at the installation site.

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21. Dimensions and Installation Space

The approximate overall dimensions are:

2102 mm × 606 mm × 600 mm

The 600 mm depth corresponds to the MCC-style configuration.

However, the actual installation envelope should be larger than the nominal drive dimensions.

Additional space may be required for:

• Incoming power cables
• Motor cables
• Cable bending radius
• Grounding conductors
• Control wiring
• Network connections
• Cooling airflow
• Maintenance access
• Door movement
• Component replacement

A high-power Frame 8 drive should never be installed solely based on the physical cabinet dimensions without considering service access and thermal requirements.

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22. Cooling System

The drive uses forced-air cooling.

This is a practical cooling method for conventional industrial electrical rooms.

However, the cooling system must be maintained properly.

Important considerations include:

• Ambient temperature
• Airflow
• Cooling fan operation
• Cabinet ventilation
• Air passage cleanliness
• Dust accumulation
• Hot-air recirculation
• Required clearance

A 650 A drive can produce significant heat during operation.

Poor thermal management can increase component temperatures and shorten equipment life.

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23. Main Applications

23.1 Large Centrifugal Pumps

Large centrifugal pumps are one of the most natural applications for this drive.

Variable-speed control can regulate flow and process conditions more effectively than simply running the motor continuously at full speed.

Typical applications include:

• Water treatment
• Industrial water circulation
• Cooling-water systems
• Process pumping
• Wastewater
• Large irrigation systems
• Industrial utilities

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23.2 Large Fans

Large fans can benefit from variable-speed operation.

Applications include:

• Industrial ventilation
• Furnace systems
• Exhaust systems
• Dust collection
• Process ventilation
• Cooling systems
• Large air-handling equipment

The ability to adjust fan speed according to actual process demand can improve operating flexibility.

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23.3 Industrial Blowers

Large blowers are another suitable application.

Examples include:

• Combustion-air systems
• Waste treatment
• Pneumatic conveying
• Dust extraction
• Industrial ventilation
• Process air systems

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23.4 Heavy Conveyors

Heavy conveyor systems can require substantial motor current.

The drive can provide controlled acceleration and adjustable operating speed.

This can help reduce mechanical shock on:

• Belts
• Gearboxes
• Couplings
• Bearings
• Mechanical structures

Typical applications include:

• Mining
• Cement
• Steel
• Aggregate
• Ports
• Warehouses
• Bulk material handling

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23.5 Large Mixers

Industrial mixers may experience changing torque depending on the material being processed.

Variable-speed control allows the mixing process to be adjusted according to production requirements.

Potential applications include:

• Chemical processing
• Mineral processing
• Material blending
• Food processing
• Industrial mixing

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23.6 Compressors

The drive can also be used in selected large compressor applications.

The exact suitability depends on compressor type, motor current, torque requirements, speed range, acceleration requirements, and process conditions.

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23.7 Large Production Machinery

The drive can be incorporated into automated production machinery where motor speed needs to be controlled as part of a larger process.

The embedded EtherNet/IP interface makes it especially useful where the drive needs to communicate with a centralized control system.

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24. Product Advantages

24.1 High Current Capacity

The 650 A rating gives this model substantial capacity for large industrial motors.

This makes it suitable for applications where smaller drive classes would be undersized.

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24.2 High Power Rating

The 400 kW Low Duty rating provides considerable capacity for large variable-torque applications.

The 355 kW Normal Duty and 315 kW Heavy Duty ratings extend the application range into more demanding industrial loads.

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24.3 Integrated EtherNet/IP

Embedded networking simplifies integration into industrial automation systems.

The drive can be controlled and monitored through a centralized architecture.

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24.4 Local Operator Interface

The Enhanced LCD Full Numeric HIM is a significant practical advantage.

Technicians can work directly with the drive during commissioning and troubleshooting.

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24.5 Air-Cooled Architecture

Forced-air cooling is a familiar solution for industrial electrical equipment.

It avoids the complexity of liquid-cooling infrastructure.

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24.6 Frame 8 Construction

The Frame 8 platform is designed for high-power applications and provides the physical architecture required for substantial electrical capacity.

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24.7 Flexible Application Range

The drive can be used for:

• Pumps
• Fans
• Blowers
• Conveyors
• Mixers
• Compressors
• Production machinery
• Material handling
• Process equipment

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24.8 EMC Filtering

The filtered configuration provides useful support for managing conducted electrical noise.

Proper grounding and cable installation are still required.

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25. Five Same-Series or Closely Related Models

The following models are useful alternatives and comparison points.

These five models provide a useful comparison around the 650 A class.

The 567 A version is the lower-capacity option.

The 650 A AN0 is the no-HIM alternative.

The 650 A JN2 is the closely related later configuration with the same basic power class and an Enhanced LCD HIM.

The 750 A version provides additional current and Low Duty power capacity.

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26. Five Popular Allen-Bradley Models

These are useful high-power models to consider when evaluating a large 400 VAC motor-control application.

The 460 A and 540 A versions are appropriate when the motor current requirement is lower.

The 567 A model provides an intermediate current class.

The 650 A model is a strong choice for applications requiring up to the 400 kW Low Duty class.

The 750 A version provides additional capacity when the 650 A class is insufficient.

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27. 20G1ABC650AN2NNNNN vs. 20G1ABC650AN0NNNNN

These two configurations have essentially the same basic electrical capacity.

The key difference is the operator interface.

The AN0 configuration is intended for installations where a local HIM is not needed.

The AN2 configuration adds the Enhanced LCD Full Numeric interface.

For maintenance-intensive installations, AN2 can be the more convenient choice.

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28. 20G1ABC650AN2NNNNN vs. 20G1ABC650JN2NNNNN

These two models are especially important to compare.

The electrical capacity is essentially the same.

The major configuration difference is the CM jumper arrangement.

The AN2 version has the CM jumper removed, while the JN2 version has the CM jumper installed.

The JN2 configuration is the more appropriate comparison when looking for the later configuration of the same basic drive class.

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29. 20G1ABC650AN2NNNNN vs. 20G1ABC567AN2NNNNN

The 650 A model provides a clear increase in capacity over the 567 A version.

The difference is particularly significant in the Heavy Duty rating, increasing from approximately 250 kW to 315 kW.

This makes the 650 A model more attractive for demanding industrial loads.

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30. 20G1ABC650AN2NNNNN vs. 20G1ABC750AN2NNNNN

The 750 A model provides more current capacity and higher Low Duty and Normal Duty ratings.

If the motor’s current requirement is comfortably below the 650 A class, the 650 A version can provide a more appropriate selection.

If the application approaches the upper end of the 650 A range, the 750 A version may provide additional capacity.

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31. Main Application Selection Guide

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32. Installation Considerations

The 20G1ABC650AN2NNNNN is a large industrial drive, so installation planning is important.

The approximate 623 kg weight requires suitable handling equipment.

The electrical room or MCC area should provide appropriate access for transporting the drive to its final location.

The mounting structure must support the actual equipment weight.

The nominal dimensions of approximately 2102 × 606 × 600 mm should also not be interpreted as the complete installation envelope.

Additional space may be needed for:

• Power cables
• Motor cables
• Cable bending
• Grounding
• Control wiring
• Network wiring
• Cooling airflow
• Maintenance
• Door movement
• Component replacement

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33. Thermal Management

Thermal management is particularly important for a 650 A Frame 8 drive.

The forced-air cooling system must be able to move sufficient air through the equipment.

The installation should avoid:

• Hot-air recirculation
• Blocked ventilation openings
• Excessive ambient temperature
• Dust accumulation
• Failed cooling fans
• Insufficient cabinet airflow

The drive’s operating environment should be kept within the applicable environmental limits.

Regular inspection of the cooling system can help prevent thermal-related failures.

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34. Motor Cable and Grounding Considerations

Large variable frequency drives can create high-frequency electrical currents during normal switching operation.

The installation should therefore pay attention to:

• Motor cable routing
• Grounding
• Shielding
• Cabinet bonding
• Control cable separation
• Network cable routing
• Motor frame grounding
• Cable length

The CM jumper removed configuration should be considered together with the overall grounding and EMC strategy.

It is not simply a parameter that should be changed without evaluating the complete system.

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35. Maintenance Considerations

Regular maintenance should include inspection of:

• Cooling fans
• Air passages
• Power terminals
• Motor terminals
• Grounding connections
• Control wiring
• Network connections
• Cabinet cleanliness
• Fault history
• Warning history
• Signs of overheating
• Unusual fan noise
• Unusual vibration

The Enhanced LCD HIM makes maintenance more convenient because technicians can directly inspect drive information at the equipment.

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36. Benefits of the Enhanced LCD HIM

The local HIM is particularly useful during commissioning.

For example, a technician can use the local interface to:

• Verify drive status
• Review fault conditions
• Inspect operating values
• Adjust parameters
• Confirm configuration
• Monitor motor operation
• Assist with troubleshooting

This can reduce dependence on a separate engineering workstation for routine maintenance activities.

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37. Why Choose the 20G1ABC650AN2NNNNN?

The model is particularly attractive when an application requires:

• 650 A current capacity
• 400 kW Low Duty
• 355 kW Normal Duty
• 315 kW Heavy Duty
• 400 VAC three-phase operation
• Frame 8 high-power construction
• Forced-air cooling
• Embedded EtherNet/IP
• AC input with precharge
• EMC filtering
• CM jumper removed
• Enhanced LCD Full Numeric HIM
• 600 mm deep MCC-style construction
• Large industrial motor control

The combination of high power and local operator access makes this configuration particularly practical for large industrial installations where maintenance personnel need direct access to the drive.

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38. Recommended Model Comparison

This comparison makes the role of the 20G1ABC650AN2NNNNN easy to see.

It sits between the 567 A and 750 A configurations and provides a strong combination of power capacity and local operator functionality.

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39. Technical Summary

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40. Overall Product Assessment

The Allen-Bradley 20G1ABC650AN2NNNNN is a high-capacity PowerFlex 755 AC drive intended for large industrial motor applications.

Its 650 A current class, together with 400 kW Low Duty, 355 kW Normal Duty, and 315 kW Heavy Duty ratings, provides a substantial operating range for large industrial machinery.

The 400 VAC three-phase input makes it suitable for 400 VAC-class industrial power systems, while the Frame 8, 600 mm deep MCC-style construction provides a practical physical platform for high-power installations.

The integrated EtherNet/IP interface makes the drive suitable for centralized automation, while the Enhanced LCD Full Numeric HIM gives maintenance personnel direct access to drive status, configuration, diagnostics, and operating information.

The AN2 configuration is especially useful when a local operator interface is required.

Compared with the AN0 configuration, the AN2 version is more convenient for commissioning and maintenance because technicians can work directly with the drive rather than relying exclusively on a PLC, HMI, SCADA system, or external engineering workstation.

The principal technical points to remember are:

• 650 A current class
• 400 kW Low Duty
• 355 kW Normal Duty
• 315 kW Heavy Duty
• 400 VAC, three-phase
• Frame 8
• Air cooled / forced air
• AC input with precharge
• No DC terminals
• EMC filtered
• CM jumper removed
• No dynamic braking
• Embedded EtherNet/IP
• Enhanced LCD Full Numeric HIM
• Type 1 / IP20
• 600 mm deep MCC style
• Approximately 2102 × 606 × 600 mm
• Approximately 623 kg

For large pumps, fans, blowers, conveyors, compressors, mixers, material-handling equipment, and high-power production machinery, the 20G1ABC650AN2NNNNN is a strong high-capacity configuration within the PowerFlex 755 family.

When comparing alternatives, the closest models are the 20G1ABC567AN2NNNNN, 20G1ABC650AN0NNNNN, 20G1ABC650JN2NNNNN, 20G1ABC650AN4NNNNN, and 20G1ABC750AN2NNNNN. The most important selection differences are current capacity, duty rating, CM-jumper configuration, local HIM configuration, and the specific installation requirements of the motor and application.