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Allen-Bradley 20G1AJD617AN4NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1AJD617AN4NNNNN is a high-power, air-cooled PowerFlex 755 AC Drive designed for demanding industrial motor-control applications. It belongs to the PowerFlex 755 AC Packaged Drive family and is configured for high-capacity three-phase motor applications at 480 VAC.

This model is intended for large industrial motors where accurate speed regulation, reliable torque control, industrial networking, and robust enclosure construction are required.

With a nominal current rating of 617 A, the drive is positioned in the high-power range of the PowerFlex 755 family. Its published horsepower ratings are approximately 600 HP for Light Duty, 500 HP for Normal Duty, and 400 HP for Heavy Duty, making it suitable for large pumps, fans, conveyors, compressors, process machinery, material-handling equipment, and other high-power rotating machinery.

The model uses an air-cooled power section and a large Frame 8 construction. The packaged configuration uses an IP54 / NEMA Type 12 enclosure arrangement and an approximately 800 mm deep MCC-style cabinet format.

The AN4 configuration is associated with the enhanced full-numeric HIM arrangement, providing a more practical local operator interface than a blank/no-HIM configuration. This is particularly useful where local commissioning, parameter adjustment, diagnostics, and operator interaction are required.

The catalog number also identifies an integrated industrial communication configuration, including embedded EtherNet/IP, making the drive suitable for integration into plant-level control architectures.

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2. Basic Product Identification

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Packaged Drive Family	PowerFlex 755 AC Packaged Drive
Catalog Number	20G1AJD617AN4NNNNN
Drive Type	Variable Frequency AC Drive
Cooling Method	Air Cooled
Application Class	Industrial / Heavy-Duty Motor Control
Rated Voltage	480 VAC
Input Phase	Three Phase
Rated Current	617 A
Frame Size	Frame 8
Enclosure Style	MCC-style packaged construction
Enclosure Rating	IP54 / NEMA Type 12
Cabinet Depth	Approximately 800 mm
Communication	Embedded EtherNet/IP
Input Configuration	AC Input with Precharge
DC Terminals	Not provided in this configuration
Input Filtering	EMC Filter
Dynamic Braking	None
HIM Configuration	Enhanced LCD Full Numeric HIM configuration
Common-Mode Capacitor Configuration	CM jumper removed
Approx. Dimensions	2477 × 600 × 800 mm
Approx. Weight	644 kg
Primary Function	Variable-speed control of large AC motors

The dimensional and weight figures above should be treated as practical planning values for equipment layout, transportation, and cabinet handling. Actual shipping dimensions and weight can vary depending on the final packaged configuration and accessories.

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3. Product Series and Family

The 20G1AJD617AN4NNNNN belongs to the PowerFlex 755 series.

The PowerFlex 755 family is designed around high-performance industrial AC motor control, particularly for applications where a conventional small-frame variable-frequency drive is not sufficient for the required motor power.

The series is commonly associated with large motor-driven equipment and centralized industrial automation systems. Its architecture is suited to applications requiring a combination of speed control, torque control, motor protection, communications, diagnostics, and integration with a larger control system.

The particular catalog number represents a highly specified packaged-drive configuration rather than a small standalone drive module.

The 617 A rating places this model among the larger 480 VAC configurations within the PowerFlex 755 family.

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4. Detailed Electrical Parameters

Parameter	Specification
Catalog Number	20G1AJD617AN4NNNNN
Rated Input Voltage	480 VAC
Input Configuration	Three-phase AC
Input Type	AC input with precharge
DC Bus Terminals	Not included in this configuration
Rated Output Current	617 A
Light-Duty Rating	617 A continuous
Light-Duty Horsepower	Approximately 600 HP
Normal-Duty Rating	Approximately 485 A continuous
Normal-Duty Horsepower	Approximately 500 HP
Heavy-Duty Rating	Approximately 485 A continuous
Heavy-Duty Horsepower	Approximately 400 HP
Light-Duty Overload Capability	Approximately 679 A for 1 minute
Normal-Duty Overload Capability	Approximately 728 A for 1 minute
Normal-Duty Short Overload	Approximately 926 A for 3 seconds
Heavy-Duty Overload Capability	Approximately 728 A for 1 minute
Heavy-Duty Short Overload	Approximately 926 A for 3 seconds
Motor Type	Three-phase AC motor
Drive Architecture	High-power PWM AC drive
Cooling	Forced-air cooling
Frame	Frame 8
Dynamic Braking	None
EMC Filter	Included
Common-Mode Capacitor Jumper	Removed
Communication	Embedded EtherNet/IP

The multiple duty ratings are important when selecting the drive for a specific machine.

A motor application with relatively smooth loading and limited overload demand can generally make better use of the Light-Duty rating. Applications involving higher starting torque, frequent acceleration, shock loading, or repeated overload conditions should be evaluated using the Normal-Duty or Heavy-Duty rating rather than selecting the drive solely from the motor nameplate horsepower.

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5. 600 HP Class Power Capability

One of the defining characteristics of the 20G1AJD617AN4NNNNN is its approximately 600 HP Light-Duty rating.

This makes the drive appropriate for large industrial motors used in continuous-process machinery, bulk-material handling, large pumping systems, ventilation systems, and other equipment where motor power is substantially higher than the range normally handled by compact VFDs.

For engineering selection, horsepower alone should not be used as the only criterion.

Motor voltage, motor full-load current, starting torque, acceleration time, load inertia, duty cycle, ambient conditions, enclosure requirements, overload requirements, and harmonic considerations should all be evaluated.

For example, a 400 HP motor with severe cyclic loading may require a different selection approach than a 500 HP motor driving a relatively constant-load pump.

The 617 A current capability gives the model considerable application flexibility within the 480 VAC class.

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6. AC Input and Precharge Configuration

The drive uses an AC input with precharge configuration.

The precharge function is important in a high-power drive because the DC bus contains substantial energy-storage components. Controlled charging of the DC bus reduces the electrical stress that would otherwise occur during initial energization.

For a large Frame 8 drive, this is particularly important because the stored electrical energy and input current are considerably greater than those of smaller industrial drives.

The configuration does not provide dedicated DC input terminals.

This makes the drive particularly suitable for installations where the application is based around conventional three-phase AC input rather than a common DC-bus architecture.

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7. EMC Filter Configuration

The 20G1AJD617AN4NNNNN includes an EMC filter configuration.

The filter arrangement is intended to help control conducted electromagnetic interference generated by the switching operation of the drive.

This is valuable in industrial plants containing:

• PLC systems
• Distributed I/O
• Industrial Ethernet networks
• Instrumentation
• Sensors
• Encoders
• Process-control equipment
• Measurement systems
• Communication equipment

Large variable-frequency drives can produce substantial high-frequency electrical noise because of their high-power switching operation. Appropriate filtering, grounding, cable selection, motor-cable routing, and cabinet construction therefore remain important parts of the overall installation.

The EMC filter should not be considered a replacement for correct system grounding and installation practices.

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8. Common-Mode Capacitor Configuration

The AN4 configuration of this catalog number is associated with a removed common-mode capacitor jumper configuration.

This detail is important because common-mode capacitor configuration affects the relationship between the drive’s input-side filtering and the grounding system.

For installations with specific grounding arrangements, isolation transformers, ungrounded systems, impedance-grounded systems, or other special power-distribution conditions, the common-mode configuration should be checked carefully before commissioning.

This is one of the reasons that two PowerFlex 755 catalog numbers with similar current and voltage ratings should not automatically be treated as interchangeable.

The complete catalog number matters.

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9. Embedded EtherNet/IP

A major practical feature of this configuration is embedded EtherNet/IP communication.

This allows the drive to participate directly in an industrial Ethernet control architecture without requiring a separate external communication adapter for basic EtherNet/IP integration.

Typical functions include:

• Drive command and status exchange
• Speed reference transmission
• Start/stop control
• Fault and alarm monitoring
• Output current monitoring
• Output frequency monitoring
• Motor operating status
• Parameter access
• Diagnostic information
• Integration with PLC-based control systems
• HMI/SCADA communication

For large production systems, embedded network communication significantly simplifies the overall control architecture.

A PLC can issue speed and run commands to the drive while receiving operating status, feedback, alarms, and diagnostic information.

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10. AN4 Operator Interface Configuration

The AN4 designation is associated with the enhanced LCD full-numeric HIM configuration.

This is particularly useful for applications where technicians need to interact directly with the drive.

The local operator interface can be used for functions such as:

• Parameter setup
• Drive commissioning
• Fault review
• Alarm identification
• Status monitoring
• Manual adjustments
• Troubleshooting
• Local diagnostic operations
• Configuration verification

Compared with a configuration without a local HIM, an enhanced local interface can reduce dependence on an external programming workstation during field service.

For large industrial equipment, this can be particularly valuable because the drive may be installed inside a motor-control area or process equipment room where technicians need immediate access to drive information.

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11. Frame 8 Construction

The 20G1AJD617AN4NNNNN uses a Frame 8 construction.

Frame 8 is a substantial physical and electrical platform intended for high-power applications.

The large frame size provides the physical space required for:

• High-current power components
• Large bus structures
• Cooling hardware
• Input and output power connections
• Protective components
• Control electronics
• Internal airflow management
• Service access

The physical size should be considered early during machine and electrical-room design.

Unlike compact VFDs that can often be mounted directly into a standard control cabinet, a Frame 8 packaged drive requires careful planning for floor space, ventilation, cable entry, service clearance, lifting, and heat dissipation.

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12. Dimensions and Weight

Mechanical Parameter	Approximate Value
Catalog Number	20G1AJD617AN4NNNNN
Height	2477 mm
Width	600 mm
Depth	800 mm
Approximate Weight	644 kg
Frame	Frame 8
Enclosure Style	MCC-style
Enclosure Rating	IP54 / NEMA Type 12
Cooling	Forced Air
Installation Type	Floor / industrial cabinet installation
Handling Requirement	Heavy industrial equipment handling

At approximately 644 kg, this is not a lightweight panel-mounted VFD.

The installation should therefore include appropriate lifting and handling provisions.

The floor structure, transportation path, cabinet positioning, lifting points, service access, and final cable-routing arrangement should be considered before the equipment arrives at the installation site.

The approximately 2477 mm height is also significant. The equipment should be checked against available electrical-room ceiling height, door clearance, transportation routes, and lifting equipment limitations.

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13. Enclosure and Environmental Protection

The drive uses an approximately IP54 / NEMA Type 12 packaged enclosure arrangement.

This provides considerably more environmental protection than an open-frame drive.

The enclosure is intended for industrial environments where protection against dust and other contaminants is important.

Typical installation locations may include:

• Manufacturing plants
• Process plants
• Pump stations
• Water-treatment facilities
• Cement plants
• Mining facilities
• Material-handling areas
• Industrial utility rooms
• Production machinery rooms

The enclosure rating does not mean that the drive can be installed without consideration of temperature, humidity, corrosive gases, conductive dust, vibration, altitude, and ventilation.

High-power air-cooled drives generate substantial heat, so adequate airflow and appropriate environmental conditions remain essential.

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14. Cooling System

The drive uses an air-cooled design.

For a 617 A high-power drive, cooling is a major engineering consideration.

The drive converts a portion of the incoming electrical energy into heat during operation. The cooling system transfers this heat away from the power electronics and internal components.

Proper airflow is therefore important for:

• IGBT thermal management
• DC-bus component cooling
• Internal control electronics
• Power semiconductor reliability
• Long-term drive service life
• Protection against thermal trips

The electrical-room design should provide sufficient ventilation and should prevent hot exhaust air from being recirculated back into the drive intake.

In high-temperature environments, additional thermal derating may need to be considered.

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15. Typical Industrial Applications

Large Pumps

The drive is well suited to large centrifugal and process pumps.

Variable-speed control allows the motor speed to be adjusted according to process demand rather than operating continuously at full speed.

Typical applications include:

• Water supply pumps
• Wastewater pumps
• Cooling-water pumps
• Process pumps
• Irrigation systems
• Industrial circulation pumps
• Raw-water pumping

For centrifugal pumps, reducing motor speed can provide significant process-control and energy-management benefits compared with traditional throttling methods.

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Fans and Blowers

Large ventilation fans and industrial blowers are another important application.

The drive can regulate airflow by changing motor speed, which can be useful for:

• Industrial ventilation
• Furnace ventilation
• Dust collection
• Exhaust systems
• HVAC plants
• Cooling towers
• Process-air systems
• Combustion-air systems

Large fan systems often have substantial motor ratings, making the 617 A PowerFlex 755 configuration suitable for high-capacity installations.

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Conveyors

The PowerFlex 755 platform is suitable for large conveyor systems used in:

• Mining
• Cement production
• Aggregate handling
• Warehousing
• Bulk material handling
• Ports
• Industrial production lines

Variable-speed control allows the conveyor to start smoothly, reduce mechanical shock, coordinate with upstream and downstream equipment, and operate at different production rates.

For heavy conveyors, drive selection should consider belt tension, starting torque, acceleration time, regenerative behavior, and mechanical inertia.

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Mining Equipment

High-power drives are commonly required in mining applications.

Potential applications include:

• Ore conveyors
• Crushers
• Feeders
• Fans
• Pumps
• Material-handling equipment
• Processing machinery
• Dewatering systems

Mining machinery can involve severe mechanical loading, high inertia, dust, and large motor power.

The Frame 8 PowerFlex 755 platform provides a suitable high-power drive architecture for these types of systems when the complete application is correctly engineered.

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Cement and Aggregate Processing

The drive can also be applied to large motors used in cement and aggregate plants.

Potential applications include:

• Crushers
• Fans
• Conveyors
• Mills
• Pumps
• Material feeders
• Dust extraction systems
• Process blowers

These environments frequently require robust equipment and careful consideration of enclosure protection and cooling.

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Water and Wastewater

Large municipal and industrial water systems can benefit from high-power variable-speed drives.

Typical applications include:

• Lift stations
• Large centrifugal pumps
• Raw-water pumps
• Distribution pumps
• Aeration blowers
• Sludge systems
• Process-water circulation

The drive’s industrial networking capability is also useful when multiple pumping systems are coordinated through a central PLC or supervisory control system.

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16. Advantages of the 20G1AJD617AN4NNNNN

High-Power Capability

The 617 A rating gives this model a substantial current capacity for 480 VAC three-phase motor applications.

Its approximately 600 HP Light-Duty rating places it firmly in the large industrial drive category.

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Multiple Duty Ratings

The availability of Light-Duty, Normal-Duty, and Heavy-Duty application ratings provides greater flexibility during motor selection.

Instead of treating horsepower as a single fixed number, the drive can be evaluated against the actual loading characteristics of the machine.

This is particularly important for conveyors, crushers, compressors, and other equipment with varying torque requirements.

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Integrated EtherNet/IP

Embedded EtherNet/IP simplifies integration into modern industrial control systems.

It allows the drive to exchange control and diagnostic information with a PLC or other industrial controller through an Ethernet-based architecture.

This reduces the need for additional communication hardware and can simplify system wiring.

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Local Operator Interface

The enhanced LCD full-numeric HIM configuration provides convenient access to drive parameters and operating information.

This can be valuable during commissioning and maintenance, particularly when troubleshooting needs to be performed directly at the equipment.

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Robust Packaged Construction

The IP54 / NEMA Type 12 packaged configuration is better suited to industrial environments than an exposed open-frame arrangement.

It provides a practical solution for installations where equipment needs a defined enclosure rather than being installed as a bare drive module.

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High-Current Industrial Platform

Frame 8 construction provides a substantial platform for high-current motor control.

The large physical architecture accommodates the electrical and thermal requirements associated with 617 A operation.

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EMC Filtering

The integrated EMC filter configuration can help manage conducted electromagnetic interference and contributes to a more controlled electrical installation when combined with proper grounding and cable practices.

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Air-Cooled Design

Air cooling avoids the need for a liquid cooling circuit.

For many industrial plants, this simplifies maintenance and reduces the number of auxiliary cooling components that would otherwise be required.

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17. Recommended Related Models in the Same Series

The following models are closely related to the 20G1AJD617AN4NNNNN and are useful when comparing current rating, horsepower capability, operator-interface configuration, and common-mode/filtering options.

Recommended Model	Series / Type	Voltage	Current Class	Approx. LD HP	Approx. ND HP	Approx. HD HP	Frame	Typical Configuration
20G1AJD485AN4NNNNN	PowerFlex 755 Air-Cooled	480 VAC	485 A	450 HP	400 HP	350 HP	8	AN4, EMC filter, high-power packaged drive
20G1AJD545AN4NNNNN	PowerFlex 755 Air-Cooled	480 VAC	545 A	500 HP	450 HP	350 HP	8	AN4, EMC filter, high-power packaged drive
20G1AJD617AN4NNNNN	PowerFlex 755 Air-Cooled	480 VAC	617 A	600 HP	500 HP	400 HP	8	AN4, EMC filter, high-power packaged drive
20G1AJD710AN4NNNNN	PowerFlex 755 Air-Cooled	480 VAC	710 A	650 HP	600 HP	450 HP	8	AN4, EMC filter, high-power packaged drive
20G1AJD740AN4NNNNN	PowerFlex 755 Air-Cooled	480 VAC	740 A	700 HP	650 HP	500 HP	8	AN4, EMC filter, high-power packaged drive

These models form a useful comparison group because they share the same general high-power 480 VAC PowerFlex 755 architecture.

The main selection difference is the current and horsepower capacity.

For applications near the upper end of the 617 A rating, the 710 A or 740 A versions may provide additional capacity, subject to the actual motor current and duty requirements.

For smaller motors, the 485 A or 545 A versions can provide a more appropriately sized solution.

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18. Additional Related Models for Configuration Comparison

Model	Voltage Class	Current	LD HP	ND HP	HD HP	Frame	Main Difference
20G1AJD617AN0NNNNN	480 VAC	617 A	600 HP	500 HP	400 HP	8	Similar electrical platform, AN0 configuration
20G1AJD617JN0NNNNN	480 VAC	617 A	600 HP	500 HP	400 HP	8	Similar rating with different CM capacitor/filter configuration
20G1AJD617JN4NNNNN	480 VAC	617 A	600 HP	500 HP	400 HP	8	Similar high-power configuration with JN4 arrangement
20G1AJD545AN4NNNNN	480 VAC	545 A	500 HP	450 HP	350 HP	8	Lower-current alternative
20G1AJD710AN4NNNNN	480 VAC	710 A	650 HP	600 HP	450 HP	8	Higher-current alternative

These catalog numbers illustrate why complete catalog-number matching is important.

Two models can share the same voltage, frame size, and general horsepower class while differing in filter configuration, common-mode capacitor arrangement, operator interface, or other options.

When replacing an existing drive, the complete catalog number should therefore be checked rather than matching only the first portion of the part number.

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19. Five Popular Allen-Bradley Models for Broader Comparison

The following five models represent useful Allen-Bradley drive products for comparison across different power ranges and applications.

Model	Product Family	Typical Voltage Class	Current / Power Class	Drive Type	Typical Application
25B-D030N114	PowerFlex 525	480 VAC Class	30 A Class	Compact AC Drive	General machine control, pumps, fans, conveyors
25C-D030N114	PowerFlex 527	480 VAC Class	30 A Class	Networked AC Drive	PLC-centered machine automation
20G1AGE053JA0NNNNN	PowerFlex 755	480 VAC Class	High-power class	Air-Cooled AC Drive	Large industrial motors
20G1AGC260JN0NNNNN	PowerFlex 755	400 VAC Class	260 A Class	Air-Cooled AC Drive	Process and heavy industrial equipment
20G1AND302JA0NNNNN	PowerFlex 755	480 VAC Class	302 A Class	Air-Cooled AC Drive	Large pumps, fans, conveyors and process machinery

These models cover a broad range of industrial applications.

The PowerFlex 525 and PowerFlex 527 families are generally more appropriate for compact or medium-power machinery, while PowerFlex 755 configurations are intended for substantially larger motors and more demanding industrial applications.

For an application around 617 A, the 20G1AJD617AN4NNNNN is clearly positioned toward the high-power end of the product range.

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20. Installation Considerations

Because the 20G1AJD617AN4NNNNN is a large Frame 8 drive, installation should be treated as a complete electrical and mechanical engineering task rather than simply a drive replacement.

The following factors should be reviewed before installation:

Incoming Power

The incoming electrical system should be suitable for the drive’s 480 VAC three-phase input requirements.

The available fault current, protection method, disconnect arrangement, grounding system, and upstream transformer capacity should be evaluated.

Motor Cable

The motor cable should be selected according to the motor current, installation environment, cable length, insulation system, grounding arrangement, and drive application requirements.

Long motor cables can increase reflected-wave and common-mode effects, making proper cable selection particularly important.

Grounding

High-power VFD installations require careful grounding.

The drive enclosure, motor frame, cable shield or ground conductors, control equipment, and plant grounding system should be coordinated to reduce electrical noise and improve personnel and equipment safety.

Ventilation

The drive is air cooled and requires sufficient airflow.

The installation should prevent hot air from being trapped around the equipment or recirculated through the cooling system.

Service Clearance

Adequate front and rear service space should be provided where required.

Technicians need enough access to perform inspection, testing, replacement, and maintenance activities.

Mechanical Handling

With an approximate equipment weight of 644 kg, suitable lifting and transportation equipment should be planned.

The equipment should not be treated like a small wall-mounted VFD.

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21. Typical Control Architecture

A typical installation can be organized around a PLC, industrial Ethernet network, PowerFlex 755 drive, and large three-phase motor.

A simplified control arrangement can be described as:

PLC / Controller → EtherNet/IP Network → 20G1AJD617AN4NNNNN → 480 VAC Motor

The PLC can manage:

• Start and stop commands
• Speed reference
• Process setpoints
• Operating modes
• Fault reset
• Drive status
• Current monitoring
• Speed feedback
• Alarm information
• Production sequencing

The drive performs the actual motor-control function while the PLC provides supervisory and sequence control.

This arrangement is particularly useful in plants with many drives because the same industrial Ethernet infrastructure can be used for multiple motor-control stations.

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22. Maintenance Advantages

The PowerFlex 755 architecture is well suited to maintenance-intensive industrial environments.

The local operator interface can help technicians identify drive conditions without relying entirely on a remote control system.

EtherNet/IP connectivity can also make remote monitoring and centralized diagnostics more practical.

Maintenance personnel can monitor drive status from a control system while using the local interface for detailed inspection during field service.

For large production equipment, this combination can reduce troubleshooting time.

However, high-power drives should always be serviced according to the applicable electrical safety procedures, including appropriate isolation and verification of the absence of hazardous voltage.

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23. Product Selection Advantages

The 20G1AJD617AN4NNNNN is particularly attractive when the project requires all of the following characteristics in one drive platform:

• 480 VAC three-phase operation
• Approximately 617 A current capacity
• Large industrial motor control
• Approximately 600 HP Light-Duty capability
• Frame 8 construction
• Air cooling
• IP54 / NEMA Type 12 packaged enclosure
• Embedded EtherNet/IP
• Local enhanced operator interface
• EMC filtering
• High-power industrial construction

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

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24. Important Catalog Number Interpretation

The complete catalog number is:

20G1AJD617AN4NNNNN

For practical engineering purposes, the number should be treated as a complete configuration identifier.

The 617 portion corresponds to the high-current class of the drive.

The A/J-related configuration and the N0/N4 configuration identify important option differences that can affect the physical and electrical configuration of the finished product.

The N4 arrangement is particularly important because it identifies the enhanced local operator-interface configuration.

Therefore, when purchasing a replacement, it is not advisable to specify only:

“PowerFlex 755, 617 A, 480 V.”

A proper replacement request should identify the complete catalog number or a verified equivalent configuration.

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25. Lifecycle and Replacement Consideration

The 20G1AJD617AN4NNNNN is a discontinued configuration in the PowerFlex 755 product family.

The listed direct replacement is 20G1AJD617JN4NNNNN.

For an existing installation, this means that users should distinguish between:

1. Maintaining an existing 20G1AJD617AN4NNNNN installation.
2. Purchasing an original replacement unit.
3. Selecting the designated direct replacement.
4. Migrating to a newer drive platform.
5. Maintaining compatibility with existing motor cables, control wiring, PLC communications, and operator interfaces.

A replacement drive should not be selected solely because the current rating is identical.

The complete electrical configuration, enclosure, communication arrangement, HIM configuration, grounding/filter arrangement, and mechanical dimensions should all be checked.

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26. Engineering Summary

Item	20G1AJD617AN4NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product	PowerFlex Air-Cooled 755 AC Drive
Catalog Number	20G1AJD617AN4NNNNN
Voltage	480 VAC
Phase	3 Phase
Current	617 A
Light-Duty Rating	600 HP
Normal-Duty Rating	500 HP
Heavy-Duty Rating	400 HP
Frame	Frame 8
Cooling	Air Cooled
Enclosure	IP54 / NEMA Type 12
Cabinet Style	800 mm Deep MCC Style
Communication	Embedded EtherNet/IP
Input	AC with Precharge
DC Terminals	None
EMC Filter	Yes
Dynamic Braking	None
CM Jumper	Removed
HIM	Enhanced LCD Full Numeric
Approx. Height	2477 mm
Approx. Width	600 mm
Approx. Depth	800 mm
Approx. Weight	644 kg
Main Application	High-Power Industrial Motor Control
Typical Motor Range	Up to approximately 600 HP LD
Product Status	Discontinued
Direct Replacement	20G1AJD617JN4NNNNN

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27. Overall Product Assessment

The Allen-Bradley 20G1AJD617AN4NNNNN PowerFlex 755 is a high-capacity industrial AC drive intended for large 480 VAC three-phase motors.

Its 617 A current rating, Frame 8 construction, approximately 600 HP Light-Duty capability, IP54/NEMA Type 12 packaged enclosure, embedded EtherNet/IP communication, EMC filtering, and enhanced local operator interface make it a substantial drive solution for large industrial machinery.

The strongest aspect of this model is its combination of high electrical capacity and industrial automation functionality.

It is not simply a high-current motor controller. The PowerFlex 755 platform provides a broader architecture for integrating large motors into automated production and process-control systems.

For pumping, ventilation, conveyors, mining equipment, water systems, material handling, cement processing, and other large rotating machinery, the model provides the electrical capacity required by many high-power motor applications.

The main considerations are its large physical size, high equipment weight, cooling requirements, installation complexity, and the need to correctly match the drive configuration to the motor and plant power system.

For new engineering projects, the complete current catalog status and replacement strategy should also be considered because this particular configuration has been discontinued.

For an existing installation, however, the catalog number remains highly useful for identifying the original electrical and mechanical configuration and for determining the appropriate replacement or migration path.