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Allen-Bradley 20G1AJF500AN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1AJF500AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large three-phase industrial motor applications.

It belongs to the PowerFlex 750-Series and represents a high-capacity 690 VAC configuration with a 500 A output-current rating.

The drive is configured for forced-air cooling, AC input with precharge, no DC terminals, filtered input, CM jumper removed, no dynamic braking, and a blank / no-HIM configuration.

Its primary motor-duty ratings are:

• 530 kW Light Duty
• 500 kW Normal Duty
• 400 kW Heavy Duty

This power range makes the drive suitable for large pumps, fans, blowers, conveyors, process machinery, mining equipment, cement equipment, water systems, material-handling equipment, and other high-power industrial applications.

The model uses a 690 VAC three-phase supply and Frame 8 construction.

The AN0 configuration is particularly appropriate for installations where the drive is controlled and monitored through the plant automation system rather than requiring a local operator keypad mounted on the drive.

The model includes embedded EtherNet/IP, allowing it to be integrated directly into an industrial automation network.

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2. Brand and Series

Category	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 750-Series
Drive Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Catalog Number	20G1AJF500AN0NNNNN
Configuration	AN0
Voltage Class	690 VAC
Phase	Three Phase
Nominal Output Current	500 A
Light-Duty Rating	530 kW
Normal-Duty Rating	500 kW
Heavy-Duty Rating	400 kW
Frame	8
Cooling	Forced Air
Enclosure Class	IP54 / Type 12
Cabinet Style	MCC Style
Cabinet Depth Class	800 mm
Input Type	AC Input with Precharge
DC Terminals	None
Filtering	Filtered
CM Jumper	Removed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM

The 20G1AJF500AN0NNNNN is therefore a high-power, cabinet-style PowerFlex 755 configuration intended for large 690 VAC motor systems.

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3. Main Technical Parameters

Parameter	Specification
Catalog Number	20G1AJF500AN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 750-Series
Drive	PowerFlex 755
Drive Type	Air-Cooled AC Drive
Voltage	690 VAC
Phase	Three Phase
Nominal Output Current	500 A
Light-Duty Motor Rating	530 kW
Normal-Duty Motor Rating	500 kW
Heavy-Duty Motor Rating	400 kW
Light-Duty Continuous Current	530 A
Light-Duty 1-Minute Current	583 A
Normal-Duty Continuous Current	500 A
Normal-Duty 1-Minute Current	550 A
Normal-Duty 3-Second Current	750 A
Heavy-Duty Continuous Current	413 A
Heavy-Duty 1-Minute Current	620 A
Heavy-Duty 3-Second Current	750 A
Input Type	AC Input with Precharge
DC Terminals	None
Cooling	Forced Air
Dynamic Braking	None
Filtering	Filtered
CM Jumper	Removed
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Enclosure	IP54 / Type 12
Cabinet Style	800 mm Deep MCC Style
Frame	Frame 8
Approx. Height	2477 mm
Approx. Width	600 mm
Approx. Basic Depth	800 mm
Approx. Depth with Filter Arrangement	898 mm
Approx. Weight	644 kg

The 690 VAC, 500 A configuration is rated at approximately 530 kW Light Duty, 500 kW Normal Duty, and 400 kW Heavy Duty.

The drive’s exact final dimensions and weight can vary depending on the complete cabinet arrangement, options, and installation configuration. The dimensional figures above are therefore best treated as typical Frame 8 reference values rather than project-specific certified shipping dimensions.

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4. Product Configuration

The catalog number 20G1AJF500AN0NNNNN identifies a particular combination of electrical rating, enclosure arrangement, filtering, common-mode configuration, braking configuration, and operator-interface configuration.

The principal configuration can be summarized as:

Configuration Item	Model Specification
Drive Family	PowerFlex 755
Voltage	690 VAC
Output Current	500 A
Cooling	Forced Air
Input	AC with Precharge
DC Terminals	None
Enclosure	Type 12 / IP54
Cabinet Depth	800 mm
Frame	8
Filtering	Filtered
CM Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP

This is a configuration intended primarily for integration into a larger control system.

The absence of a HIM does not mean that the drive lacks control capability.

Instead, it indicates that the selected configuration does not include a local operator interface as part of the standard catalog configuration.

For centralized automation systems, this can be an efficient arrangement because the drive can be operated and monitored through the plant control architecture.

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5. PowerFlex 755 Series

The PowerFlex 755 is a high-performance industrial AC drive platform within the PowerFlex 750-Series.

The series is intended for applications where motor power, control flexibility, network communication, diagnostics, and industrial integration are important.

The PowerFlex 755 family covers a broad range of motor power and voltage classes.

The 20G1AJF500AN0NNNNN represents one of the high-capacity 690 VAC Frame 8 configurations.

This places it well above compact machine drives and medium-capacity industrial VFDs.

It is intended for applications where motor power can reach several hundred kilowatts.

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6. 690 VAC Three-Phase Operation

The drive is designed for 690 VAC three-phase motor systems.

690 VAC is widely used in large industrial installations because higher motor voltage allows high motor power to be transmitted with lower current compared with equivalent lower-voltage systems.

This becomes increasingly important as motor power increases.

For a large motor, reducing current can help with:

• Cable sizing.
• Switchgear arrangement.
• Motor feeder design.
• Power distribution.
• Electrical losses.
• Cabinet arrangement.

The 690 VAC configuration is therefore particularly suitable for large industrial facilities.

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7. 500 A Output Current

The nominal output-current rating is 500 A.

This places the model among the high-current configurations in the 690 VAC PowerFlex 755 range.

The 500 A rating provides substantial capacity for large industrial motors.

However, the drive should always be selected according to the motor’s actual nameplate current and application duty rather than motor kW alone.

This is especially important when the motor is subjected to:

• High starting torque.
• High inertia.
• Repeated acceleration.
• Frequent overloads.
• Rapid speed changes.
• Heavy material loads.

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8. Duty Ratings

The model provides three principal application-duty classifications.

Duty	Continuous Current	1-Minute Current	3-Second Current	Motor Rating
Light Duty	530 A	583 A	—	530 kW
Normal Duty	500 A	550 A	750 A	500 kW
Heavy Duty	413 A	620 A	750 A	400 kW

These ratings allow the same basic drive platform to be used across different types of industrial loads.

The important engineering point is that the allowable motor power changes according to the duty classification.

A motor with a relatively stable load profile can use the Light-Duty rating.

A general industrial machine may be selected using the Normal-Duty rating.

A machine requiring greater overload capability may need to be evaluated using the Heavy-Duty rating.

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9. Light-Duty Rating — 530 kW

The 530 kW Light-Duty rating provides the highest stated motor-power rating for this model.

It is particularly useful for variable-torque applications.

Typical examples include:

• Large centrifugal pumps.
• Large centrifugal fans.
• Ventilation systems.
• Cooling-water pumps.
• Large process blowers.
• Industrial air systems.
• Water-transfer systems.

Variable-torque loads generally become good candidates for the Light-Duty rating when the motor’s actual current remains within the drive’s applicable operating limits.

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10. Normal-Duty Rating — 500 kW

The 500 kW Normal-Duty rating is appropriate for many general industrial applications.

Examples include:

• Process pumps.
• Conveyors.
• Material-handling systems.
• Industrial fans.
• Blowers.
• General process machinery.
• Utility equipment.

The Normal-Duty classification provides a useful balance between power capacity and overload performance.

---

11. Heavy-Duty Rating — 400 kW

The 400 kW Heavy-Duty rating is intended for applications with more demanding torque or overload requirements.

Potential applications include:

• Heavy conveyors.
• High-inertia machines.
• Certain mixers.
• Material-processing systems.
• Heavy-duty industrial machinery.
• Some crushing and processing equipment.

When the machine has a difficult starting condition or significant cyclic loading, the Heavy-Duty rating should be considered rather than selecting the drive solely according to the motor’s nominal kW.

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12. Embedded EtherNet/IP

One of the major features of the model is embedded EtherNet/IP.

This allows the drive to participate directly in an industrial Ethernet control architecture.

Typical information exchanged between the controller and drive can include:

• Start commands.
• Stop commands.
• Speed reference.
• Frequency reference.
• Drive status.
• Motor current.
• Output frequency.
• Fault status.
• Alarm status.
• Diagnostic information.
• Operating information.

This makes the drive well suited to centralized control systems.

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13. Centralized Automation Architecture

A typical installation can be organized as:

PLC / DCS

↓

EtherNet/IP

↓

PowerFlex 755

↓

690 VAC Motor

This arrangement can be used for:

• Pump stations.
• Fan systems.
• Conveyor systems.
• Process plants.
• Mining systems.
• Cement plants.
• Water-treatment facilities.
• Industrial utilities.

The control system can issue speed and operating commands while collecting drive status and diagnostic information.

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14. AN0 Configuration and No HIM

The AN0 configuration uses a Blank / No HIM arrangement.

HIM refers to the Human Interface Module.

The absence of a local HIM can be advantageous in installations where:

• The drive is controlled by a PLC.
• Operators use a centralized HMI.
• The drive is installed in an electrical room.
• Local operator control is not required.
• A plant-standard remote-control architecture is used.
• Multiple drives are managed from a central SCADA or DCS system.

In such systems, removing the local operator interface can simplify the physical arrangement and reduce unnecessary local controls.

---

15. No-HIM Versus JN4

A closely related configuration is the 20G1AJF500JN4NNNNN.

The primary electrical rating is similar, but the JN4 version provides a local enhanced HIM.

Feature	20G1AJF500AN0NNNNN	20G1AJF500JN4NNNNN
Voltage	690 VAC	690 VAC
Current	500 A	500 A
Light Duty	530 kW	530 kW
Normal Duty	500 kW	500 kW
Heavy Duty	400 kW	400 kW
Frame	8	8
Enclosure	IP54 / Type 12	IP54 / Type 12
Cooling	Forced Air	Forced Air
EtherNet/IP	Embedded	Embedded
Filtering	Filtered	Filtered
CM Jumper	Removed	Installed
Dynamic Braking	None	None
HIM	No HIM	Enhanced LCD / Full Numeric
Local Interface	Not included	Included

The AN0 version is therefore particularly suitable for centralized control architectures.

The JN4 version is more suitable when local operator access is important.

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16. Input Configuration

The model uses AC Input with Precharge.

This is a conventional AC-input arrangement for a high-power variable-frequency drive.

The precharge function controls the initial charging process of the internal DC bus when the drive is energized.

This is particularly important in high-power equipment because the DC-link energy-storage system is substantial.

The model does not provide DC input terminals in this configuration.

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17. No DC Terminals

The model is specified with no DC terminals.

This is appropriate for conventional AC-input applications.

Typical installations include:

• Pump drives.
• Fan drives.
• Conveyor drives.
• Blower drives.
• Process machinery.
• Utility systems.
• Industrial material-handling equipment.

Where a common DC bus or specialized DC input arrangement is required, a different PowerFlex configuration should be considered.

---

18. Filtered Configuration

The drive is configured as Filtered.

The input filter helps manage electrical noise associated with the drive’s switching operation.

However, overall electromagnetic compatibility depends on the complete installation.

The following should also be considered:

• Grounding.
• Motor cable construction.
• Cable routing.
• Shielding.
• Cabinet arrangement.
• Control-cable separation.
• Motor frame grounding.
• Installation of other electrical equipment.

For a large industrial system, EMC performance should be considered at the system level.

---

19. CM Jumper Removed

The model is configured with the CM jumper removed.

Common-mode configuration can influence the drive’s interaction with the electrical supply and grounding system.

The appropriate configuration depends on:

• Grounding arrangement.
• Power-system architecture.
• Leakage-current requirements.
• EMC considerations.
• Motor cable length.
• Motor insulation.
• Plant electrical standards.

The CM configuration should therefore be considered during electrical-system engineering rather than treated as an isolated drive setting.

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20. Dynamic Braking — None

The model has no dynamic braking.

This is an important selection point.

When a high-inertia motor decelerates, mechanical energy can return to the drive’s DC bus.

If the energy is excessive, DC-bus voltage can rise.

Therefore, applications requiring rapid stopping should be evaluated for:

• Motor inertia.
• Load inertia.
• Operating speed.
• Deceleration time.
• Stopping frequency.
• Regenerative energy.
• External braking requirements.
• Regenerative drive requirements.

Large fans and centrifugal pumps often have relatively predictable deceleration behavior.

By contrast, large conveyors, hoists, high-inertia machinery, and certain process machines may require more detailed braking analysis.

---

21. Forced-Air Cooling

The 20G1AJF500AN0NNNNN uses forced-air cooling.

A 500 A high-power drive generates substantial heat during operation.

The cooling system therefore requires sufficient airflow.

The installation should provide:

• Adequate ventilation.
• Proper cabinet clearances.
• Clean airflow paths.
• Appropriate ambient temperature.
• Suitable electrical-room HVAC.
• Regular cooling-system maintenance.

For multiple high-power drives installed in the same room, the total heat load should be included in the HVAC design.

---

22. Frame 8 Construction

The drive uses Frame 8 construction.

Frame 8 is intended for large industrial drives.

The physical size is considerably greater than compact VFD products.

Mechanical planning should consider:

• Floor loading.
• Cabinet height.
• Cabinet width.
• Depth.
• Cable-entry requirements.
• Transportation route.
• Lifting equipment.
• Maintenance clearance.
• Door opening.
• Ventilation.

The approximate basic drive reference is:

2477 mm high × 600 mm wide × 800 mm deep

with an approximate reference weight of:

644 kg

These values should be treated as typical Frame 8 reference values.

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23. Dimensions and Weight

Mechanical Parameter	Approximate Specification
Model	20G1AJF500AN0NNNNN
Frame	8
Height	2477 mm
Width	600 mm
Basic Depth	800 mm
Approx. Depth with Filter Arrangement	898 mm
Approx. Weight	644 kg
Enclosure	IP54 / Type 12
Cabinet Style	MCC Style
Cooling	Forced Air

The actual shipping dimensions and final cabinet weight may be higher when additional option cabinets, disconnects, reactors, or other assemblies are included.

For final mechanical planning, the dimensional drawing for the complete configured assembly should be used.

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24. IP54 / Type 12 Enclosure

The drive uses an IP54 / Type 12, 800 mm deep MCC-style enclosure.

This is intended for protected industrial installations.

Typical locations include:

• Electrical rooms.
• MCC rooms.
• Process-control buildings.
• Industrial utility rooms.
• Manufacturing facilities.
• Water-treatment electrical rooms.
• Mining electrical facilities.
• Cement plant electrical rooms.

The enclosure provides protection suitable for many controlled industrial environments.

Extremely dusty, corrosive, humid, outdoor, or washdown environments require additional environmental evaluation.

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25. Large Pump Applications

The 20G1AJF500AN0NNNNN is well suited to large pumping systems.

Potential applications include:

• Raw-water pumps.
• High-lift pumps.
• Cooling-water pumps.
• Process-water pumps.
• Mine dewatering pumps.
• Industrial transfer pumps.
• Large circulation pumps.
• Wastewater pumps.

Variable-speed operation allows the motor to be matched more closely to process demand.

For example:

Pressure Sensor → PLC → EtherNet/IP → PowerFlex 755 → Pump Motor

The controller can adjust motor speed according to pressure or flow requirements.

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26. Fan Applications

Large industrial fans can also be excellent applications.

Examples include:

• Furnace fans.
• Exhaust fans.
• Combustion-air fans.
• Dust-collection fans.
• Mine ventilation fans.
• Cement-process fans.
• Large building ventilation systems.
• Industrial cooling fans.

For large variable-torque fans, the 530 kW Light-Duty capability can provide substantial motor capacity.

---

27. Blower Applications

Large process blowers may require several hundred kilowatts of motor power.

Potential applications include:

• Aeration.
• Process air.
• Combustion air.
• Industrial ventilation.
• Pneumatic conveying.
• Dust collection.
• Process gas handling.

The drive provides variable-speed operation that can be integrated with pressure, flow, or process-control feedback.

---

28. Conveyor Applications

Large conveyors often require substantial starting torque.

Applications can include:

• Mining conveyors.
• Cement conveyors.
• Aggregate conveyors.
• Port material handling.
• Bulk-material systems.
• Ore handling.
• Coal handling.
• Industrial logistics systems.

The drive can provide controlled motor acceleration.

This can reduce mechanical shock on:

• Gearboxes.
• Couplings.
• Belts.
• Bearings.
• Drive pulleys.
• Mechanical structures.

For very high-inertia conveyors, the braking and acceleration requirements should be reviewed carefully.

---

29. Mining Applications

The high-power rating and 690 VAC configuration make the drive appropriate for many large mining applications.

Potential uses include:

• Mine ventilation.
• Dewatering.
• Ore handling.
• Conveyor systems.
• Processing equipment.
• Large fans.
• Pumping systems.
• Auxiliary machinery.

The protected cabinet arrangement is particularly appropriate when the drive is installed inside an electrical room or controlled equipment area.

---

30. Cement and Aggregate Applications

Potential cement-plant applications include:

• Process fans.
• Large blowers.
• Dust collection.
• Material conveyors.
• Cooling systems.
• Large pumps.
• Material-handling equipment.
• Utility systems.

The drive’s high current capacity provides a useful selection for large motors.

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31. Steel and Metal Processing

Potential applications in steel and metal-processing facilities include:

• Cooling-water pumps.
• Process fans.
• Exhaust systems.
• Conveyors.
• Material handling.
• Utility pumps.
• Auxiliary process equipment.

The embedded EtherNet/IP capability allows the drive to be incorporated into centralized automation systems.

---

32. Water and Wastewater Applications

The drive is suitable for large water infrastructure where motor power can reach several hundred kilowatts.

Potential applications include:

• Raw-water pumping.
• High-lift pumping.
• Transfer pumping.
• Industrial wastewater.
• Aeration blowers.
• Cooling-water systems.
• Process-water circulation.

The drive can receive a speed reference from a PLC based on:

• Flow.
• Pressure.
• Tank level.
• Process demand.

---

33. Process Industry Applications

The drive can be used in a broad range of process industries.

Potential industries include:

• Mining.
• Cement.
• Steel.
• Pulp and paper.
• Water treatment.
• General manufacturing.
• Industrial utilities.
• Material handling.
• Process manufacturing.

The final selection should always be based on motor current, load characteristics, overload requirements, speed range, braking requirements, and environmental conditions.

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34. Main Product Advantages

34.1 High 690 VAC Rating

The 690 VAC configuration is appropriate for large industrial motors.

Higher motor voltage can help reduce current for a given power level, which can simplify large motor feeder design.

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34.2 500 A Current Capacity

The 500 A rating provides substantial motor-control capacity.

It is appropriate for large industrial motor systems where smaller PowerFlex configurations would not provide sufficient current.

---

34.3 530 kW Light-Duty Capability

The 530 kW Light-Duty rating provides particularly strong capacity for variable-torque applications.

Large pumps and fans are common examples.

---

34.4 500 kW Normal-Duty Capability

The 500 kW Normal-Duty rating gives the drive broad general-purpose industrial capability.

It can be used for many process and material-handling applications.

---

34.5 400 kW Heavy-Duty Capability

The 400 kW Heavy-Duty rating allows the same drive class to address more demanding motor loads.

This is useful when the motor experiences greater torque or overload requirements.

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34.6 Embedded EtherNet/IP

Integrated EtherNet/IP simplifies connection to a plant automation network.

It reduces the need for a separate basic communication interface for standard networked control.

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34.7 No-HIM Configuration

The No-HIM configuration is useful where local operator access is not required.

It is especially appropriate for:

• Centralized PLC control.
• DCS systems.
• SCADA-controlled facilities.
• Large electrical rooms.
• Standardized remote-operation architectures.

---

34.8 IP54 / Type 12 Cabinet

The enclosed cabinet provides protection for the drive power section in many industrial environments.

---

34.9 Frame 8 High-Power Platform

The Frame 8 architecture provides a practical platform for large industrial motors.

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34.10 Broad Application Range

The combination of high power, network communication, protected cabinet construction, and multiple duty ratings makes the drive suitable for many industries.

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35. Five Recommended Related Models

The following models are closely related to the target product and are useful alternatives within the same PowerFlex 755 690 VAC family.

Model	Voltage	Current	LD Rating	ND Rating	HD Rating	Frame	HIM
20G1AJF330AN0NNNNN	690 VAC	330 A	355 kW	315 kW	250 kW	8	No HIM
20G1AJF370AN0NNNNN	690 VAC	370 A	400 kW	355 kW	300 kW	8	No HIM
20G1AJF415AN0NNNNN	690 VAC	415 A	450 kW	400 kW	355 kW	8	No HIM
20G1AJF460AN0NNNNN	690 VAC	460 A	500 kW	450 kW	375 kW	8	No HIM
20G1AJF500JN0NNNNN	690 VAC	500 A	530 kW	500 kW	400 kW	8	No HIM

These models form a practical progression around the 500 A target model.

The 330 A, 370 A, 415 A, and 460 A versions provide lower-current alternatives.

The JN0 version is electrically very close to the target model while using the installed-CM-jumper configuration.

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36. Detailed Comparison of Related Models

Model	Current	LD Current	ND Current	HD Current	LD Power	ND Power	HD Power
20G1AJF330AN0NNNNN	330 A	370 A	330 A	265 A	355 kW	315 kW	250 kW
20G1AJF370AN0NNNNN	370 A	410 A	370 A	308 A	400 kW	355 kW	300 kW
20G1AJF415AN0NNNNN	415 A	460 A	415 A	370 A	450 kW	400 kW	355 kW
20G1AJF460AN0NNNNN	460 A	500 A	460 A	375 A	500 kW	450 kW	375 kW
20G1AJF500AN0NNNNN	500 A	530 A	500 A	413 A	530 kW	500 kW	400 kW

This progression is useful when matching the drive to the actual motor nameplate current.

A smaller drive should not be selected simply because the motor’s kW rating appears close to the nominal drive rating.

Actual motor current and application duty remain critical selection factors.

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37. Direct Replacement Configuration

A closely related active configuration is:

20G1AJF500JN0NNNNN

The main difference is the CM jumper configuration.

The original AN0 configuration uses:

CM Jumper Removed

while the JN0 configuration uses:

CM Jumper Installed

Both are associated with the 500 A, 690 VAC, Frame 8 PowerFlex 755 architecture.

The appropriate configuration should be selected according to the electrical-system design.

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38. Five Popular Models of the Same Brand

The following five models provide a broader selection across the same Allen-Bradley product range.

Model	Series	Voltage	Current / Capacity	Motor Rating	Frame	Protection	Typical Use
25B-D030N114	PowerFlex 525	380–480 VAC	30 A	Approx. 15 kW ND / 11 kW HD	D	IP20	Machine-level applications
25C-D030N114	PowerFlex 527	380–480 VAC	30 A	Approx. 15 kW ND / 11 kW HD	D	IP20	Networked machine control
20F1AND302JA0NNNNN	PowerFlex 753	480 VAC	302 A	Approx. 250 HP ND / 200 HP HD	7	IP20/IP00	Large industrial equipment
20G1AJE460JN4NNNNN	PowerFlex 755	600 VAC	460 A	Approx. 500 HP LD / 500 HP ND / 400 HP HD	8	IP54	Large 600 V motor systems
20G1AJF415JN4NNNNN	PowerFlex 755	690 VAC	415 A	450 kW LD / 400 kW ND / 355 kW HD	8	IP54	Large 690 V motor systems

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39. 25B-D030N114

The 25B-D030N114 belongs to the PowerFlex 525 family.

It is designed for much smaller motors than the 500 A PowerFlex 755.

Typical applications include:

• Small pumps.
• Fans.
• Conveyors.
• Packaging equipment.
• Machine tools.
• Small process machinery.

Its compact form makes it suitable for machine-level control.

It is not a direct replacement for the 20G1AJF500AN0NNNNN, but it represents a different scale of drive application within the same brand.

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40. 25C-D030N114

The 25C-D030N114 belongs to the PowerFlex 527 series.

It is aimed primarily at networked machine-control applications.

Potential uses include:

• Packaging machines.
• Conveyors.
• Material handling.
• Automated machinery.
• Production equipment.
• Small process systems.

Its power range is considerably lower than the target PowerFlex 755.

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41. 20F1AND302JA0NNNNN

The 20F1AND302JA0NNNNN belongs to the PowerFlex 753 family.

It is designed for larger industrial applications than compact PowerFlex products.

Its 480 VAC electrical class makes it useful in facilities where 480 VAC is the standard motor voltage.

Typical applications include:

• Large pumps.
• Large fans.
• Conveyors.
• Process equipment.
• Material handling.
• Industrial utility systems.

The model is therefore useful when comparing a 480 VAC PowerFlex architecture with the 690 VAC PowerFlex 755 target.

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42. 20G1AJE460JN4NNNNN

The 20G1AJE460JN4NNNNN is another high-power PowerFlex 755 configuration.

It uses a 600 VAC class and approximately 460 A current rating.

Its general architecture is similar to the target PowerFlex 755, including:

• High-power Frame 8 construction.
• Industrial enclosure.
• Forced-air cooling.
• EtherNet/IP capability.
• Large motor capacity.

The primary distinction is the voltage class.

This makes it useful for large motor systems based on 600 VAC rather than 690 VAC.

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43. 20G1AJF415JN4NNNNN

The 20G1AJF415JN4NNNNN is very closely related to the target model.

It uses:

• 690 VAC.
• 415 A.
• PowerFlex 755.
• Frame 8.
• IP54 / Type 12 construction.
• Forced-air cooling.
• Embedded EtherNet/IP.
• Enhanced local HIM.

It is a suitable lower-current alternative where the motor current does not require the full 500 A capacity.

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44. Five Popular Model Comparison

Model	Voltage	Current	LD Rating	ND Rating	HD Rating	Frame	Primary Characteristic
25B-D030N114	380–480 VAC	30 A	—	15 kW	11 kW	D	Compact machine drive
25C-D030N114	380–480 VAC	30 A	—	15 kW	11 kW	D	Networked machine drive
20F1AND302JA0NNNNN	480 VAC	302 A	—	250 HP	200 HP	7	Large industrial drive
20G1AJE460JN4NNNNN	600 VAC	460 A	500 HP	500 HP	400 HP	8	High-power 600 V drive
20G1AJF415JN4NNNNN	690 VAC	415 A	450 kW	400 kW	355 kW	8	High-power 690 V drive

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45. Application Selection

Application	Typical Duty	Suitability
Large Centrifugal Pump	Light / Normal	Excellent
Raw-Water Pump	Light / Normal	Excellent
High-Lift Pump	Normal	Excellent
Cooling-Water Pump	Light / Normal	Excellent
Large Centrifugal Fan	Light / Normal	Excellent
Furnace Fan	Normal	Very Good
Mine Ventilation Fan	Light / Normal	Excellent
Process Blower	Light / Normal	Excellent
Dust-Collection Fan	Light / Normal	Excellent
Large Conveyor	Normal / Heavy	Very Good
Mining Conveyor	Normal / Heavy	Very Good
Cement Conveyor	Normal / Heavy	Very Good
Bulk Material Handling	Normal	Very Good
Industrial Wastewater	Normal	Excellent
Aeration Blower	Light / Normal	Excellent
Steel Cooling System	Normal	Very Good
Process Machinery	Normal / Heavy	Very Good
High-Inertia Machine	Heavy	Requires Engineering Review
Regenerative Application	Special	Requires Braking Evaluation
Rapid-Stop Application	Special	Requires Braking Evaluation

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46. Pump-System Advantages

For pump systems, variable-speed control can provide several practical advantages.

The motor does not necessarily need to run continuously at maximum speed.

The drive can adjust motor speed according to actual process demand.

This can improve:

• Flow control.
• Pressure control.
• Process stability.
• Equipment operating flexibility.
• Mechanical control.
• Overall system efficiency in appropriate variable-torque applications.

The 530 kW Light-Duty capability makes the model particularly relevant to large centrifugal pumping systems.

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47. Fan-System Advantages

Large fan systems can also benefit from variable-speed operation.

The drive can regulate airflow according to process demand.

This is useful for:

• Ventilation.
• Combustion air.
• Furnace systems.
• Exhaust.
• Dust collection.
• Cooling.
• Mine ventilation.

The drive can receive a speed reference from a centralized PLC or process controller.

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48. Conveyor-System Advantages

For conveyors, controlled acceleration can reduce sudden mechanical loading.

This can help reduce stress on:

• Gearboxes.
• Couplings.
• Conveyor belts.
• Bearings.
• Shafts.
• Drive pulleys.

The drive can also provide controlled speed adjustment.

This is useful when process throughput changes according to production demand.

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49. Mining-System Advantages

Mining equipment frequently operates under demanding conditions.

The high-power 690 VAC architecture provides a practical solution for large motors.

Potential advantages include:

• High motor-power capacity.
• Centralized control.
• Network monitoring.
• Controlled acceleration.
• Adjustable speed.
• Industrial cabinet construction.
• Integration with plant automation.

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50. Water-System Advantages

Large water systems can benefit from centralized variable-speed control.

For example:

Level Sensor

↓

PLC

↓

EtherNet/IP

↓

PowerFlex 755

↓

500 kW-Class Pump Motor

The controller can continuously adjust motor speed according to the required process condition.

This can be particularly useful for large pumping stations.

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51. Installation Considerations

Electrical Room

The Frame 8 drive requires a suitable electrical-room arrangement.

The room should provide adequate:

• Floor space.
• Ventilation.
• Cooling.
• Electrical clearances.
• Maintenance access.
• Cable routing.
• Transportation access.

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Floor Loading

The approximate drive reference weight is around 644 kg.

The final installed assembly may weigh more depending on cabinet options.

Floor loading should therefore be checked during project engineering.

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Transportation

Because the drive is approximately 2477 mm high, transportation planning is important.

The following should be checked:

• Door dimensions.
• Ceiling height.
• Turning space.
• Loading equipment.
• Forklift capacity.
• Lifting points.
• Installation path.

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52. Maintenance

The No-HIM configuration is particularly suitable for facilities where maintenance personnel use centralized control systems or service tools rather than a permanently mounted local keypad.

Maintenance planning should include:

• Cooling-system inspection.
• Cabinet inspection.
• Electrical connection inspection.
• Motor cable inspection.
• Grounding inspection.
• Network communication checks.
• Fault-history review.
• Environmental inspection.
• Filter and airflow maintenance.

For a large drive, preventive maintenance is especially important because a drive failure can affect a significant portion of the production process.

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53. Network Integration

The embedded EtherNet/IP capability allows the drive to be incorporated into an automation architecture without requiring the drive to be treated as an isolated device.

A large plant may organize multiple drives in a structure such as:

Plant PLC

↓

Industrial Ethernet Network

↓

PowerFlex 755 Drives

↓

Large Motors

Each drive can provide operating information to the control system.

This architecture can make centralized monitoring easier.

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54. Plant Standardization

The 690 VAC PowerFlex 755 family provides a convenient progression of current ratings.

For example:

Motor Requirement	Possible Selection
Up to approximately 330 A drive class	20G1AJF330AN0NNNNN
Approximately 370 A drive class	20G1AJF370AN0NNNNN
Approximately 415 A drive class	20G1AJF415AN0NNNNN
Approximately 460 A drive class	20G1AJF460AN0NNNNN
Approximately 500 A drive class	20G1AJF500AN0NNNNN

Standardizing around one product family can simplify:

• Engineering.
• Spare-parts planning.
• Technician training.
• Maintenance procedures.
• Control-system integration.
• Commissioning.

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55. Advantages of the AN0 Configuration

The AN0 configuration is particularly useful when the installation does not require a local HIM.

Advantages can include:

Centralized Control

The drive can be controlled from a PLC, DCS, or SCADA system.

Cleaner Cabinet Arrangement

No local keypad is required as part of the drive configuration.

Reduced Local Operator Dependence

Normal operation can be performed through the plant’s central HMI.

Network-Based Diagnostics

Operating information and fault information can be incorporated into the control system.

Standardized Plant Architecture

Multiple drives can use the same centralized operating concept.

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56. Important Selection Considerations

Before selecting the drive for a specific motor, the following should be confirmed:

Selection Item	Required Check
Supply Voltage	690 VAC
Supply Frequency	Verify plant system
Motor Voltage	Verify nameplate
Motor Current	Verify nameplate
Motor Power	Verify
Duty Class	LD / ND / HD
Starting Torque	Verify
Continuous Torque	Verify
Overload Requirement	Verify
Acceleration Time	Verify
Deceleration Time	Verify
Load Inertia	Verify
Regenerative Energy	Evaluate
Braking Requirement	Evaluate
Ambient Temperature	Verify
Altitude	Verify
Cooling	Forced Air
Enclosure Environment	Verify
Motor Cable Length	Verify
EMC Requirements	Verify
Network Architecture	Verify
Local HIM Requirement	Not included
CM Configuration	Jumper Removed

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57. Quick Reference Parameter Table

Parameter	Value
Brand	Allen-Bradley
Series	PowerFlex 750-Series
Drive	PowerFlex 755
Model	20G1AJF500AN0NNNNN
Voltage	690 VAC
Phase	Three Phase
Output Current	500 A
Light Duty	530 kW
Normal Duty	500 kW
Heavy Duty	400 kW
Light-Duty Current	530 A
Normal-Duty Current	500 A
Heavy-Duty Current	413 A
Frame	8
Cooling	Forced Air
Enclosure	IP54 / Type 12
Cabinet Depth	800 mm
Approx. Height	2477 mm
Approx. Width	600 mm
Approx. Depth	800 mm
Approx. Filtered Depth	898 mm
Approx. Weight	644 kg
Input Type	AC Input with Precharge
DC Terminals	None
Filtering	Filtered
CM Jumper	Removed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Main Applications	Pumps, fans, blowers, conveyors, mining, cement, water and process industries

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58. Overall Product Assessment

The Allen-Bradley 20G1AJF500AN0NNNNN is a high-capacity PowerFlex 755 AC drive intended for large industrial motor applications.

Its 690 VAC, 500 A configuration provides a high level of motor-control capacity.

The three principal power classifications are:

530 kW Light Duty

500 kW Normal Duty

400 kW Heavy Duty

This makes the drive suitable for a broad range of large motor systems.

The Frame 8, IP54 / Type 12, 800 mm deep MCC-style construction provides a substantial enclosed industrial installation.

The forced-air cooling arrangement is appropriate for the thermal requirements of a high-power drive.

The embedded EtherNet/IP capability allows the drive to become part of a centralized automation architecture.

The AN0 No-HIM configuration is particularly appropriate for installations where operators and maintenance personnel interact with the drive through a centralized HMI, PLC, DCS, SCADA system, or engineering workstation.

The absence of dynamic braking is important when evaluating high-inertia machinery.

Large pumps, fans, blowers, and many variable-torque systems can be good candidates.

For conveyors, crushers, high-inertia machinery, or applications requiring rapid stopping, braking requirements should be evaluated carefully.

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59. Recommended Related Model Selection

For a project using several large 690 VAC motors, a practical selection hierarchy can be established around the target model.

Model	Current Class	LD	ND	HD	Recommended Position
20G1AJF330AN0NNNNN	330 A	355 kW	315 kW	250 kW	Lower capacity
20G1AJF370AN0NNNNN	370 A	400 kW	355 kW	300 kW	Lower capacity
20G1AJF415AN0NNNNN	415 A	450 kW	400 kW	355 kW	Lower capacity
20G1AJF460AN0NNNNN	460 A	500 kW	450 kW	375 kW	Closest lower model
20G1AJF500AN0NNNNN	500 A	530 kW	500 kW	400 kW	Target model

This progression allows the drive rating to be matched more closely to each motor.

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60. Final Recommendation

The 20G1AJF500AN0NNNNN is best suited to large industrial installations requiring a 690 VAC, 500 A PowerFlex 755 AC drive with centralized automation control.

Its strongest characteristics are its high power rating, large current capacity, 690 VAC operating class, Frame 8 industrial construction, forced-air cooling, IP54 / Type 12 enclosure, embedded EtherNet/IP, filtered input, and conventional AC-input architecture.

The 530 kW Light-Duty rating makes it particularly attractive for large variable-torque equipment such as pumps and fans.

The 500 kW Normal-Duty rating provides a strong solution for general industrial machinery.

The 400 kW Heavy-Duty rating provides additional flexibility for demanding applications with greater overload requirements.

The AN0 configuration without a HIM is well suited to plants where centralized control is preferred.

For applications requiring a local operator interface, the related JN4 configuration should be considered.

For applications requiring the same basic 500 A / 690 VAC electrical capacity with an installed CM jumper, the JN0 configuration is a closely related alternative.

For projects with several large motors, the 330 A, 370 A, 415 A, 460 A, and 500 A configurations provide a practical family of progressively higher capacity options.

Overall, the 20G1AJF500AN0NNNNN is a strong high-power industrial VFD configuration for large pumps, fans, blowers, conveyors, water systems, mining equipment, cement equipment, process machinery, and other large-motor applications where centralized automation, high-power motor control, and protected industrial cabinet construction are required.