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Allen-Bradley 20G1ABC567AN0NNNNN – PowerFlex 755 Air-Cooled AC Drive

The Allen-Bradley 20G1ABC567AN0NNNNN is a high-power PowerFlex 755 air-cooled AC drive designed for large industrial motors and demanding variable-speed applications.

This model is built around a 400 VAC, three-phase power system and has a 567 A nominal current class. Its published power ratings are approximately 355 kW Light Duty (LD), 315 kW Normal Duty (ND), and 250 kW Heavy Duty (HD).

The drive uses a Frame 8, 600 mm deep MCC-style, Type 1 / IP20 configuration, with forced-air cooling, an AC input with precharge, no DC input terminals, EMC filtering, and no internal dynamic braking configuration.

A major characteristic of the AN0 configuration is that it is supplied without a local HIM operator keypad. This makes it particularly suitable for installations where the drive is intended to be controlled and monitored primarily through a central automation system, network, remote HMI, or other external control architecture.

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1. Basic Product Information

The dimensions and weight listed above are practical reference values for the Frame 8, 600 mm deep configuration. Actual installation or shipping dimensions can vary depending on the complete system arrangement and associated equipment.

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2. Product Introduction

The 20G1ABC567AN0NNNNN belongs to the high-power section of the PowerFlex 755 family.

It is intended for applications where the motor is significantly larger than the motors normally served by compact variable frequency drives.

With a current rating of 567 A, this model is suitable for large motors used in heavy industrial machinery, material handling, production equipment, pumps, fans, blowers, compressors, and other high-power rotating equipment.

The combination of 315 kW Normal Duty and 250 kW Heavy Duty capacity gives the drive a useful operating range for both relatively steady industrial loads and applications that require a higher degree of overload capability.

The drive’s Frame 8 construction provides the physical platform necessary for this level of current and power.

Because the unit is approximately 2.1 meters high and has a reference weight of around 623 kg, it should be treated as a major piece of electrical equipment rather than a conventional small cabinet-mounted VFD.

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3. Important Characteristics of the AN0 Configuration

The model number contains several configuration characteristics that are worth understanding.

The 20G1ABC567AN0NNNNN is not simply a 567 A motor drive. The suffix configuration also tells you how the drive is intended to be installed and operated.

The most important characteristics are:

• Air-cooled construction.
• 400 VAC three-phase input.
• 567 A current rating.
• 355 kW Light Duty rating.
• 315 kW Normal Duty rating.
• 250 kW Heavy Duty rating.
• Frame 8 construction.
• 600 mm deep MCC-style enclosure.
• Type 1 / IP20 protection.
• AC input with precharge.
• No DC terminals.
• EMC filtering.
• CM jumper removed.
• No internal dynamic braking.
• Embedded EtherNet/IP.
• No HIM included.

This combination makes the model especially suitable for centralized industrial automation systems.

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4. Detailed Electrical Parameters

The 567 A current rating is one of the defining features of this model.

It places the 20G1ABC567AN0NNNNN between the 540 A and 650 A configurations in the same high-power family, making it useful when a 540 A class drive is marginal but a 650 A drive would provide more capacity than necessary.

The 315 kW Normal Duty rating is particularly relevant for applications with relatively stable continuous loading.

For applications involving heavier overload conditions, the 250 kW Heavy Duty rating should be used as the more appropriate reference.

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5. Light Duty, Normal Duty and Heavy Duty Ratings

The three power figures should not be interpreted as three different motor sizes that can all be used simultaneously.

They represent different operating-duty conditions.

For a large fan or some pump applications, the Light Duty or Normal Duty rating may be the most appropriate selection basis.

For a conveyor, mixer, compressor, or machine with significant starting or acceleration torque, the Heavy Duty rating may be more relevant.

The actual motor current should always be compared against the applicable drive duty rating before final selection.

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6. Dimensions and Weight

The physical size of the 20G1ABC567AN0NNNNN should be considered carefully during project planning.

At approximately 2102 mm in height, it is a large floor-standing drive.

The approximately 606 mm width and 600 mm depth also require appropriate electrical-room or MCC space.

The approximately 623 kg weight is particularly important for transportation and installation.

The installation design should take into account:

• Floor loading.
• Lifting equipment.
• Transportation route.
• Cabinet or MCC structure.
• Cable entry.
• Ventilation.
• Service access.
• Front clearance.
• Maintenance space.

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7. Cooling System

The 20G1ABC567AN0NNNNN uses forced-air cooling.

High-power semiconductor switching devices generate considerable heat during operation, so effective thermal management is essential.

The forced-air configuration uses airflow to remove heat from the drive’s internal power components.

For this reason, the installation environment should provide adequate ventilation.

The drive should not be installed in a location where airflow is blocked by other equipment, accumulated dust, insufficient cabinet ventilation, or inappropriate enclosure design.

For large installations, the heat generated by the drive should also be considered when calculating the overall heat load of the electrical room or enclosure.

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8. AC Input with Precharge

The model uses an AC input with precharge configuration.

Precharge is especially important in high-power drives because the internal DC bus contains substantial capacitive energy.

When power is initially applied, the precharge arrangement controls the charging process of the DC bus capacitors.

This helps manage the initial electrical conditions of the drive and is an important part of the high-power input architecture.

The drive does not include DC input terminals in this configuration, so it is primarily intended for conventional AC-fed installations.

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9. EMC Filtering

The 20G1ABC567AN0NNNNN includes an EMC filter configuration.

EMC performance is an important consideration in industrial drive systems because high-frequency switching can produce electrical noise.

This becomes particularly relevant when:

• Motor cables are long.
• Multiple drives are installed in the same electrical room.
• Sensitive control equipment is nearby.
• Instrumentation systems share the same facility.
• Communication networks operate close to power wiring.
• The motor and drive are separated by significant cable distances.

The internal filtering helps form part of the overall EMC solution.

However, correct grounding, motor cable selection, shielding, cabinet construction, and cable routing remain important for achieving good system-level EMC performance.

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10. CM Jumper Removed

This model is configured with the CM jumper removed.

This is an important configuration detail because common-mode behavior, grounding arrangements, and EMC characteristics can vary depending on the electrical system and installation requirements.

The correct configuration should be selected according to the actual grounding system and installation environment.

For engineering projects, the CM jumper configuration should therefore not be treated as an insignificant ordering detail.

It should be reviewed as part of the overall electrical design.

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11. No Dynamic Braking

The 20G1ABC567AN0NNNNN is specified with no internal dynamic braking configuration.

This does not mean that the drive cannot be used with equipment that decelerates.

Rather, it means that applications requiring significant braking energy need to be evaluated separately.

This is particularly important for:

• High-inertia conveyors.
• Centrifuges.
• Hoists.
• Large rotating fans.
• Material-handling systems.
• Rapid-cycle machines.
• Large rollers.
• Equipment requiring short stopping times.

If the application requires rapid deceleration, the engineering design should determine whether an external braking arrangement or another suitable energy-management method is necessary.

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12. Embedded EtherNet/IP

One of the most useful features of the PowerFlex 755 platform is its integrated network capability.

The 20G1ABC567AN0NNNNN includes embedded EtherNet/IP communication.

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

Typical information that can be exchanged includes:

• Start and stop commands.
• Speed reference.
• Output frequency.
• Motor current.
• Drive status.
• Fault information.
• Alarm information.
• Operating conditions.
• Diagnostic information.
• Control commands.

This is especially valuable for centralized automation systems containing many drives.

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13. No Local HIM – AN0 Configuration

The AN0 configuration does not include a local HIM.

This is one of the biggest differences between the AN0 version and versions equipped with a local operator interface.

For example, a drive with a local HIM can be convenient when technicians need to stand directly in front of the drive and change parameters.

The AN0 configuration instead fits better into an architecture where drive operation and monitoring are handled through:

• PLC systems.
• Remote HMI panels.
• SCADA systems.
• Networked control systems.
• Engineering workstations.
• Centralized maintenance systems.

This can be an advantage in large installations because the drive does not require a local operator interface at every cabinet.

It can also result in a cleaner electrical-room arrangement where operators normally interact with the system from a remote control station.

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14. Product Applications

14.1 Large Conveyor Systems

Large conveyors are one of the natural application areas for a high-current drive such as the 20G1ABC567AN0NNNNN.

The drive can provide controlled motor acceleration and variable-speed operation.

This can help reduce mechanical shock during startup and allow the conveyor speed to be adjusted according to production requirements.

Potential applications include:

• Bulk material conveyors.
• Mining conveyors.
• Production-line conveyors.
• Warehouse material systems.
• Transfer conveyors.
• Heavy-duty processing lines.

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14.2 Large Pumps

The drive can be used for large industrial pumps where variable-speed operation is required.

Pump speed can be adjusted according to process demand instead of maintaining constant motor speed at all times.

This can be useful for:

• Water treatment.
• Industrial process water.
• Cooling systems.
• Circulation systems.
• Large fluid-processing installations.
• Industrial pumping stations.

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14.3 Fans and Blowers

Large fans and blowers can consume considerable electrical power.

Variable-speed control allows the equipment to operate closer to the required airflow or pressure.

Typical applications include:

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

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14.4 Compressors

Large compressors can require precise speed control and substantial motor current.

The 567 A drive capacity provides a significant amount of motor-control capability for large compressor systems.

The integrated communication functions can also make it easier to coordinate compressor operation with other equipment.

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14.5 Mixers and Agitators

Large mixers and agitators frequently require controlled acceleration and variable operating speed.

The drive can be used to control the motor according to process requirements.

Potential applications include:

• Chemical processing.
• Water treatment.
• Industrial mixing.
• Material preparation.
• Process tanks.

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14.6 Material Handling

The high current capability makes this drive suitable for material-handling systems where large motors are used.

Examples include:

• Rollers.
• Conveyors.
• Feed systems.
• Transfer systems.
• Bulk handling equipment.
• Production machinery.

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15. Product Advantages

15.1 High 567 A Current Capacity

The 567 A rating is the most obvious advantage of this model.

It provides substantial motor capacity for large industrial equipment.

Compared with smaller 400 V PowerFlex 755 configurations, the 567 A version can accommodate larger motors and heavier mechanical systems.

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15.2 315 kW Normal Duty Capacity

The 315 kW Normal Duty rating makes this drive appropriate for substantial continuous industrial loads.

It provides a useful balance between drive capacity and physical size for applications that do not require the additional current capacity of the larger 650 A or 750 A models.

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15.3 250 kW Heavy Duty Capacity

The 250 kW Heavy Duty rating allows the drive to be considered for applications with more demanding load characteristics.

This is useful when the machinery requires greater torque during acceleration or experiences periodic overload conditions.

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15.4 Up to 355 kW Light Duty Capacity

The 355 kW Light Duty rating makes this model attractive for applications where overload requirements are relatively modest.

Large fans and certain pump applications can benefit from this higher Light Duty capacity.

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15.5 Integrated EtherNet/IP

Integrated communication makes the drive easier to incorporate into a centralized automation architecture.

This can reduce additional communication hardware and simplify system-level monitoring and control.

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15.6 No Local HIM

Although a missing HIM might initially appear to be a disadvantage, it can actually be useful in a centralized automation system.

If the machine is controlled from a remote HMI or control room, a local keypad may not be necessary.

The AN0 configuration can therefore be a good fit for:

• MCC systems.
• Centralized control rooms.
• Automated production lines.
• Large multi-drive installations.
• Remote-controlled process equipment.

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15.7 Frame 8 High-Power Construction

Frame 8 is designed for large-drive applications.

It provides the physical capacity needed for high-current power electronics and associated cooling equipment.

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15.8 Forced-Air Cooling

Forced-air cooling is appropriate for high-power operation and provides a practical method of removing heat from the drive’s internal power components.

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15.9 EMC Filtering

The integrated EMC filter configuration can help simplify the electrical design of installations where electromagnetic compatibility is important.

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16. Five Same-Series / Closely Related Models

The following five models are particularly useful when comparing the 20G1ABC567AN0NNNNN with nearby PowerFlex 755 configurations.

These five configurations form a useful progression.

The 460 A version is appropriate when the motor current is lower.

The 540 A version provides more current capacity while retaining similar physical architecture.

The 567 A version is the subject model and provides a useful increase in Light Duty capacity.

The 650 A and 750 A versions are suitable when the motor or application requires still more current and power.

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17. Five Popular Allen-Bradley Models for Comparison

These models are closely related to the target product and are useful for project comparison.

The JN versions are especially relevant when a newer replacement configuration or a different operator-interface arrangement is being evaluated.

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18. Direct Configuration Comparison

The 20G1ABC567 family is available in several interface configurations.

This comparison highlights why the suffix is important.

The core power rating can remain essentially the same while the interface and electrical configuration change.

The AN0 configuration is particularly suited to centralized installations where no local HIM is required and the CM jumper is removed.

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19. AN0 vs JN0

The 20G1ABC567AN0NNNNN and 20G1ABC567JN0NNNNN have very similar fundamental electrical characteristics.

The principal distinction is the electrical configuration associated with the CM jumper.

When replacing or selecting between configurations, the actual grounding and EMC requirements of the installation should therefore be reviewed.

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20. Recommended Applications by Load Type

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21. Installation and Engineering Considerations

The physical scale of this drive means that mechanical installation should be considered just as carefully as the electrical selection.

The approximately 623 kg weight requires appropriate lifting and positioning equipment.

The approximately 2102 mm height should also be checked against the available electrical-room or MCC installation height.

The 600 mm deep configuration should be incorporated into cabinet and aisle planning.

Ventilation is another important consideration.

Because the drive is forced-air cooled, the system should provide suitable airflow and should avoid conditions that could cause excessive heat buildup.

The motor cable installation should also be carefully planned.

For a drive of this power level, cable size, grounding, shielding, cable length, motor insulation, protective devices, short-circuit requirements, and EMC practices all deserve detailed engineering review.

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22. Main Benefits at a Glance

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23. Product Positioning

The 20G1ABC567AN0NNNNN can be considered a high-power industrial drive positioned between the 540 A and 650 A configurations.

This makes it useful when a project needs more capacity than a 540 A drive can comfortably provide but does not necessarily require the full capacity of a 650 A or 750 A configuration.

Its 355 kW Light Duty rating is particularly attractive for applications with relatively moderate overload requirements.

At the same time, the 315 kW Normal Duty rating and 250 kW Heavy Duty rating provide a practical basis for more demanding applications.

The lack of a local HIM also gives the model a distinctly system-oriented character.

Rather than being designed around local manual operation, the AN0 configuration fits naturally into a centralized automation architecture.

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24. Overall Assessment

The Allen-Bradley 20G1ABC567AN0NNNNN is a high-capacity, Frame 8, air-cooled PowerFlex 755 AC drive designed for large industrial motor applications.

Its strongest characteristics are the 567 A current rating, 355 kW Light Duty capacity, 315 kW Normal Duty capacity, and 250 kW Heavy Duty capacity.

The combination of these ratings gives the drive considerable flexibility across different load types.

The embedded EtherNet/IP capability is another major advantage, particularly for plants where multiple drives are connected to a centralized automation network.

The AN0 no-HIM configuration is particularly appropriate for installations where operators work through remote HMIs, PLC systems, SCADA systems, or centralized control stations.

The EMC filter and CM jumper removed configuration should be considered carefully during system design because grounding and EMC requirements vary from one installation to another.

The absence of internal dynamic braking is not necessarily a problem for normal pump, fan, and many conveyor applications, but applications involving high inertia or rapid stopping should be evaluated separately.

From a mechanical standpoint, the drive is substantial equipment, with approximate dimensions of 2102 × 606 × 600 mm and an approximate weight of 623 kg. Adequate floor support, lifting arrangements, ventilation, cable access, and maintenance clearance are therefore essential.

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25. Final Technical Summary

Conclusion

The Allen-Bradley 20G1ABC567AN0NNNNN is a powerful PowerFlex 755 air-cooled AC drive intended for large industrial motor applications where high current, substantial power capacity, network communication, and centralized control are important.

With 567 A output capacity, 355 kW Light Duty, 315 kW Normal Duty, and 250 kW Heavy Duty ratings, it occupies a useful position among the high-power 400 VAC Frame 8 configurations.

Its embedded EtherNet/IP, EMC filtering, forced-air cooling, AC input with precharge, and no-HIM architecture make it especially well suited to large automated plants and centralized control systems.

For applications such as large conveyors, pumps, fans, blowers, compressors, mixers, material-handling systems, and process machinery, it offers a strong combination of high-current capability and flexible industrial control.

The most important selection points are the actual motor current, required duty rating, overload profile, acceleration and deceleration requirements, braking needs, environmental conditions, and available installation space.

For a centralized automation system where a local keypad is unnecessary, the 20G1ABC567AN0NNNNN is a particularly practical high-power configuration.