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Allen-Bradley 20G1AJF500JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1AJF500JN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large three-phase industrial motor applications.

It belongs to the PowerFlex 750-Series and is configured for 690 VAC, three-phase operation, with a nominal output current of 500 A.

The model is a high-capacity Frame 8 drive with a protected IP54 / Type 12, 800 mm deep MCC-style enclosure and forced-air cooling.

Its rated motor capacity reaches approximately:

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

The drive is particularly suitable for large pumps, fans, blowers, conveyors, water systems, mining equipment, cement-processing equipment, process machinery, material-handling systems, and other large industrial motor applications.

The configuration includes embedded EtherNet/IP, AC input with precharge, no DC terminals, filtered input, CM jumper installed, no dynamic braking, and a blank / no HIM configuration.

The JN0 configuration is especially suitable for centralized industrial control architectures in which the drive is operated and monitored through a PLC, DCS, SCADA system, or plant HMI rather than through a permanently installed local keypad.

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2. Brand and Product 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	20G1AJF500JN0NNNNN
Configuration	JN0
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 Size	Frame 8
Cooling	Forced Air
Enclosure	IP54 / Type 12
Cabinet Style	800 mm Deep MCC Style
Input Type	AC Input with Precharge
DC Terminals	None
EMC Filtering	Filtered
CM Configuration	CM Jumper Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP

The PowerFlex 755 is positioned as a high-performance industrial drive family for applications requiring substantial motor power, flexible control, network integration, diagnostics, and industrial installation capability.

The 690 VAC versions extend the PowerFlex 755 platform into very large motor applications where higher motor voltage is beneficial for large-power electrical distribution. The 500 A 690 VAC configuration is near the upper end of the standard 690 VAC Frame 8 range.

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3. Main Technical Parameters

Parameter	Specification
Catalog Number	20G1AJF500JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	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	743 A
Input Type	AC Input with Precharge
DC Terminals	None
Cooling	Forced Air
Dynamic Braking	None
Filtering	Filtered
CM Jumper	Installed
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Enclosure	IP54 / Type 12
Cabinet Style	800 mm Deep MCC Style
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
Typical Operating Temperature	-20 to +60 °C
Storage Temperature	-40 to +70 °C

The current and power ratings correspond to the 690 VAC 500 A PowerFlex 755 configuration. The selection data identifies the 500 A model as 530 kW Light Duty, 500 kW Normal Duty, and 400 kW Heavy Duty. The overload-current values are useful when determining whether the drive is appropriate for a particular acceleration, cyclic-load, or high-torque application.

The approximate Frame 8 mechanical reference is 2477 mm high × 600 mm wide × 800 mm deep, with an approximate basic weight of 644 kg. The final installed or shipping dimensions can be greater when option cabinets, disconnect equipment, reactors, or other assemblies are included. For final mechanical design, the configured dimensional drawing should take precedence.

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4. Product Configuration

The catalog number 20G1AJF500JN0NNNNN represents a specific PowerFlex 755 configuration rather than simply identifying a generic 500 A drive.

Its principal configuration can be summarized as follows:

Configuration Item	Model Configuration
Drive Family	PowerFlex 755
Voltage	690 VAC
Output Current	500 A
Light Duty	530 kW
Normal Duty	500 kW
Heavy Duty	400 kW
Cooling	Forced Air
Input	AC with Precharge
DC Terminals	None
Enclosure	Type 12 / IP54
Cabinet Depth	800 mm
Frame	8
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP

This configuration is particularly useful for installations where the drive is integrated into a larger control system.

The drive can function as a high-power motor-control node on the plant network, while the main operator interface remains on a centralized HMI or control-room system.

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5. PowerFlex 755 Series

The PowerFlex 755 is part of the PowerFlex 750-Series of industrial AC drives.

The series is intended for applications where the motor power is too large for compact machine-level drives or where the project requires a more comprehensive industrial drive platform.

The PowerFlex 755 family supports a broad range of:

• Motor powers.
• Voltage classes.
• Current ratings.
• Feedback options.
• Network architectures.
• Control functions.
• Safety functions.
• Application requirements.

The 20G1AJF500JN0NNNNN represents a high-capacity 690 VAC implementation of this platform.

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6. 690 VAC Three-Phase Design

The 690 VAC three-phase configuration is one of the most important characteristics of the product.

Large motors can require several hundred amperes at lower voltage levels.

Using a 690 VAC motor system allows high motor power to be handled at a comparatively lower current than an equivalent lower-voltage motor system.

This can be beneficial when engineering:

• Motor feeders.
• Cable systems.
• Switchgear.
• Motor-control equipment.
• Electrical rooms.
• Power-distribution systems.

For large industrial facilities, 690 VAC motor systems are commonly considered when motor power reaches several hundred kilowatts.

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7. 500 A Output Capacity

The drive has a nominal output-current rating of 500 A.

This is a substantial industrial drive rating and places the product in the high-power range of the PowerFlex 755 family.

The 500 A value should not be interpreted simply as a maximum motor kW value.

Final drive selection should consider:

• Motor nameplate current.
• Motor voltage.
• Motor power.
• Motor service factor.
• Load torque.
• Starting torque.
• Acceleration requirements.
• Overload requirements.
• Speed range.
• Duty cycle.
• Ambient temperature.
• Installation altitude.
• Cable length.
• Braking requirements.

The actual motor current is particularly important when determining whether the 500 A drive is adequately sized.

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8. Light-Duty Rating — 530 kW

The 530 kW Light-Duty rating is the highest motor-power rating associated with this model.

Light-Duty applications generally include variable-torque loads where the motor torque requirement is relatively favorable.

Typical examples include:

• Large centrifugal pumps.
• Large centrifugal fans.
• Cooling-water pumps.
• Ventilation fans.
• Process blowers.
• Water-transfer systems.
• Industrial circulation systems.

The high Light-Duty rating makes this drive especially attractive for large variable-torque equipment.

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9. Normal-Duty Rating — 500 kW

The 500 kW Normal-Duty rating provides a broad range of general industrial applications.

Typical applications include:

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

The Normal-Duty rating is often the most useful reference for general industrial motor selection.

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10. Heavy-Duty Rating — 400 kW

The 400 kW Heavy-Duty rating is intended for applications where the motor may experience more demanding torque or overload conditions.

Potential applications include:

• Heavy conveyors.
• High-inertia machines.
• Material-processing equipment.
• Certain mixers.
• Heavy-duty pumps.
• Processing machinery.
• Material-handling equipment.

The Heavy-Duty rating should be used when the machine’s operating profile requires the additional overload capability represented by the heavy-duty current rating.

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11. Duty Rating Comparison

Duty Classification	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	743 A	400 kW

The table demonstrates why drive selection should not be based solely on the motor’s nominal kW.

A machine with a 400 kW motor can have very different drive requirements depending on whether it is a relatively stable variable-torque application or a demanding high-torque machine.

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12. Embedded EtherNet/IP

The model includes embedded EtherNet/IP.

This allows the drive to be integrated into a plant-wide industrial Ethernet architecture.

Typical information exchanged through the network can include:

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

A centralized control architecture can therefore be arranged as:

PLC / DCS

↓

EtherNet/IP Network

↓

PowerFlex 755

↓

690 VAC Motor

This is especially useful in large plants containing many variable-speed drives.

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13. No HIM Configuration

The 20G1AJF500JN0NNNNN is specified with a Blank / No HIM configuration.

HIM means Human Interface Module.

The absence of a HIM is not an indication that the drive lacks a control interface.

Instead, it means that a local operator keypad is not included in this particular configuration.

This arrangement is particularly appropriate when the drive is controlled through:

• PLC.
• DCS.
• SCADA.
• Central HMI.
• Plant control room.
• Engineering workstation.
• Remote maintenance system.

For large industrial installations, this can provide a cleaner and more standardized control architecture.

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14. JN0 Configuration and CM Jumper

One of the defining characteristics of the JN0 configuration is the CM jumper installed arrangement.

The model is specified as:

Filtered, CM Jumper Installed

This differs from the closely related AN0 configuration, which uses the CM jumper removed arrangement.

The common-mode configuration should be selected according to the plant electrical system.

Relevant engineering considerations include:

• Grounding system.
• Power-system configuration.
• Leakage current.
• EMC requirements.
• Motor cable construction.
• Motor insulation.
• Cable length.
• Grounding method.
• Plant electrical standards.

The correct configuration should therefore be determined during system-level electrical design.

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15. Filtered Input Configuration

The drive is configured with filtering.

The filtering arrangement is useful for controlling electrical noise associated with high-frequency switching.

However, overall EMC performance depends on the entire installation.

The following factors should also be considered:

• Motor cable type.
• Cable length.
• Cable routing.
• Grounding.
• Shielding.
• Cabinet construction.
• Separation of power and control cables.
• Motor-frame grounding.
• Other equipment connected to the same power system.

For a large 500 A drive, EMC should be treated as an overall system-design issue.

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16. AC Input with Precharge

The drive uses AC Input with Precharge.

This is a conventional AC-input architecture for the PowerFlex 755.

The precharge system controls the initial charging of the internal DC bus.

This is particularly important for a high-power drive because the internal DC-link capacitors represent substantial stored energy.

The model does not use external DC input terminals in this configuration.

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17. No DC Terminals

The model is configured with no DC terminals.

This makes it suitable for conventional AC-input motor-drive applications.

Typical installations include:

• Pumps.
• Fans.
• Blowers.
• Conveyors.
• Process machinery.
• Material-handling equipment.
• Industrial utility equipment.
• Water systems.

Where a common DC-bus architecture is required, a different configuration should be selected.

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18. Dynamic Braking — None

The model is configured with no dynamic braking.

This is an important point when selecting the drive for a high-inertia application.

During motor deceleration, mechanical energy can return to the drive’s DC bus.

If this regenerative energy is significant, the DC-bus voltage can rise.

Applications that require rapid stopping should therefore be evaluated for:

• Motor inertia.
• Load inertia.
• Operating speed.
• Deceleration time.
• Frequency of stopping.
• Regenerative energy.
• Braking resistor requirements.
• Regenerative drive requirements.

Large centrifugal pumps and fans may have relatively predictable deceleration characteristics.

Large conveyors, high-inertia machinery, and applications requiring frequent rapid stopping require a more detailed braking analysis.

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19. Forced-Air Cooling

The drive uses forced-air cooling.

At 500 A and several hundred kilowatts, the power section can generate significant heat.

Adequate airflow is therefore essential.

The installation should provide:

• Proper ventilation.
• Correct cabinet clearances.
• Clean airflow paths.
• Appropriate room temperature.
• Suitable HVAC capacity.
• Cooling-fan maintenance.
• Adequate heat removal.

When multiple Frame 8 drives are installed in one electrical room, their combined heat generation should be included in the building’s HVAC calculations.

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20. Frame 8 Mechanical Construction

The product uses Frame 8 construction.

This is a large industrial drive enclosure rather than a compact wall-mounted VFD.

The physical installation should therefore consider:

• Floor space.
• Floor loading.
• Cabinet height.
• Cabinet width.
• Cabinet depth.
• Cable entry.
• Maintenance access.
• Door clearance.
• Transportation route.
• Lifting equipment.
• Ventilation.

A typical Frame 8 reference is approximately:

2477 mm × 600 mm × 800 mm

with an approximate basic weight of:

644 kg

These figures should be regarded as reference dimensions for the basic Frame 8 arrangement.

The final project configuration can be larger or heavier.

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21. Dimensions and Weight

Mechanical Parameter	Approximate Value
Model	20G1AJF500JN0NNNNN
Frame	8
Enclosure	IP54 / Type 12
Cabinet Style	MCC Style
Height	2477 mm
Width	600 mm
Basic Depth	800 mm
Approx. Depth with Filter Arrangement	898 mm
Approx. Basic Weight	644 kg
Cooling	Forced Air

For a final installation, the configured dimensional drawing should be used rather than relying only on the basic Frame 8 reference.

This is especially important when the drive is installed with additional cabinets, input equipment, disconnect equipment, line reactors, or other options.

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22. IP54 / Type 12 Enclosure

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

This type of enclosure is suitable for many controlled industrial environments.

Typical installation locations include:

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

The enclosure provides a substantially more protected installation than an open-frame drive.

However, applications involving outdoor exposure, aggressive chemicals, heavy condensation, washdown, or highly corrosive environments require additional environmental evaluation.

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23. Large Pump Applications

Large pumps are among the strongest application areas for this drive.

Potential applications include:

• Raw-water pumps.
• High-lift pumps.
• Cooling-water pumps.
• Process-water pumps.
• Industrial transfer pumps.
• Mine dewatering pumps.
• Circulation pumps.
• Large wastewater pumps.

The drive can regulate motor speed according to the actual process requirement.

A typical control arrangement could be:

Pressure / Flow Sensor

↓

PLC

↓

EtherNet/IP

↓

PowerFlex 755

↓

Large Pump Motor

This provides a practical method of coordinating pump speed with process demand.

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24. Large Fan Applications

The drive is also suitable for large fan systems.

Potential applications include:

• Furnace fans.
• Exhaust fans.
• Combustion-air fans.
• Mine ventilation fans.
• Cooling fans.
• Dust-collection fans.
• Process ventilation.
• Large industrial HVAC equipment.

Variable-speed control allows fan speed to be adjusted according to the process requirement.

For variable-torque fan loads, the high Light-Duty rating can be particularly useful.

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25. Blower Applications

Large industrial blowers can require several hundred kilowatts of motor power.

Potential applications include:

• Aeration blowers.
• Process-air blowers.
• Combustion-air blowers.
• Pneumatic conveying.
• Industrial ventilation.
• Dust collection.
• Process gas systems.

The PowerFlex 755 can provide controlled motor speed while communicating operating information back to the central automation system.

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26. Conveyor Applications

The drive is suitable for large conveyor systems where motor power reaches the several-hundred-kilowatt range.

Potential applications include:

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

Controlled acceleration can reduce mechanical shock on:

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

For very high-inertia conveyor systems, braking and acceleration calculations should be performed before final drive selection.

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27. Mining Applications

The 690 VAC / 500 A architecture makes this model well suited to many large mining installations.

Potential applications include:

• Mine ventilation.
• Dewatering.
• Ore handling.
• Large conveyors.
• Processing equipment.
• Crushing-related auxiliary equipment.
• Large pumps.
• Large fans.

The Frame 8 protected cabinet configuration is particularly appropriate when the drive is installed in a controlled electrical-room environment.

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28. Cement and Aggregate Applications

Cement and aggregate plants contain many large variable-speed motors.

Potential applications include:

• Process fans.
• Dust-collection fans.
• Conveyors.
• Material-handling equipment.
• Cooling systems.
• Large pumps.
• Blowers.
• Plant utility systems.

The high current capacity allows the drive to control large motors while maintaining centralized network control.

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29. Steel and Metal Processing

Large steel and metal-processing plants can also use this drive architecture for auxiliary and process equipment.

Potential applications include:

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

The embedded EtherNet/IP capability allows drive status and operating parameters to be incorporated into the plant automation system.

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30. Water and Wastewater Applications

Large water-treatment and industrial-water systems often use motors in the hundreds-of-kilowatts range.

The drive can be used for:

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

A PLC can adjust the drive’s speed reference according to:

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

This makes the drive suitable for centralized pumping-system control.

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31. Process Industry Applications

The product can be applied to many process industries, including:

• Mining.
• Cement.
• Steel.
• Water treatment.
• General manufacturing.
• Material handling.
• Industrial utilities.
• Process manufacturing.
• Bulk-material processing.

The final selection should always be based on actual motor current and load characteristics rather than relying only on the nominal motor power.

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32. Major Product Advantages

32.1 High 690 VAC Capability

The 690 VAC design makes the drive suitable for large motor systems.

Higher motor voltage can help reduce current for a given motor power.

This can be beneficial for large electrical distribution systems.

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32.2 500 A Output Capacity

The 500 A current class provides substantial motor-control capability.

It is suitable for large industrial motors where smaller drive configurations would not provide sufficient current capacity.

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32.3 530 kW Light-Duty Capacity

The 530 kW Light-Duty rating is particularly attractive for large variable-torque applications.

Large centrifugal pumps and fans are good examples.

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32.4 500 kW Normal-Duty Capacity

The 500 kW Normal-Duty rating makes the product suitable for a broad range of general industrial applications.

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32.5 400 kW Heavy-Duty Capacity

The 400 kW Heavy-Duty rating allows the drive to handle applications requiring a higher level of overload capability than typical variable-torque equipment.

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32.6 Embedded EtherNet/IP

Embedded EtherNet/IP provides straightforward integration into a networked automation architecture.

The drive can communicate with the plant controller and provide operational and diagnostic information.

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32.7 Protected IP54 / Type 12 Enclosure

The enclosure is appropriate for many industrial electrical-room environments.

It provides a substantially more protected arrangement than an open-type drive.

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32.8 Frame 8 High-Power Architecture

Frame 8 provides a platform for very large motor applications.

The physical size is substantial, but it allows the drive to accommodate the power level required by large industrial motors.

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32.9 No-HIM Configuration

The No-HIM configuration is useful when the drive is operated through a centralized control system.

It is particularly suitable for:

• PLC-controlled systems.
• DCS installations.
• SCADA systems.
• Central control rooms.
• Automated process plants.

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32.10 CM Jumper Installed

The JN0 configuration uses the CM jumper installed arrangement.

This provides a defined common-mode configuration for the drive installation and distinguishes the model from related configurations with the jumper removed.

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33. JN0 Compared with AN0

The closest comparison is the 20G1AJF500AN0NNNNN.

The two models have the same fundamental 690 VAC, 500 A PowerFlex 755 power class, but their configuration details differ.

Parameter	20G1AJF500JN0NNNNN	20G1AJF500AN0NNNNN
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
Input	AC with Precharge	AC with Precharge
DC Terminals	None	None
Filtering	Filtered	Filtered
CM Jumper	Installed	Removed
Dynamic Braking	None	None
HIM	No HIM	No HIM

The choice between the two should therefore be based largely on the required common-mode configuration and the electrical-system design.

The AN0 version has been identified as discontinued, with the JN0 version listed as its direct replacement configuration.

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34. JN0 Compared with JN4

Another close alternative is 20G1AJF500JN4NNNNN.

The main distinction is the operator-interface configuration.

Parameter	20G1AJF500JN0NNNNN	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
Filtering	Filtered	Filtered
CM Jumper	Installed	Installed
Dynamic Braking	None	None
HIM	No HIM	Enhanced LCD / Full Numeric HIM
EtherNet/IP	Embedded	Embedded

The JN0 configuration is better suited to centralized operation where a local keypad is unnecessary.

The JN4 configuration is more appropriate when local operator interaction is required.

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35. Five Recommended Related Models

The following five models are closely related 690 VAC PowerFlex 755 configurations.

Model	Voltage	Current	LD Rating	ND Rating	HD Rating	Frame	HIM
20G1AJF330JN0NNNNN	690 VAC	330 A	355 kW	315 kW	250 kW	8	No HIM
20G1AJF370JN0NNNNN	690 VAC	370 A	400 kW	355 kW	300 kW	8	No HIM
20G1AJF415JN0NNNNN	690 VAC	415 A	450 kW	400 kW	355 kW	8	No HIM
20G1AJF460JN0NNNNN	690 VAC	460 A	500 kW	450 kW	375 kW	8	No HIM
20G1AJF500JN4NNNNN	690 VAC	500 A	530 kW	500 kW	400 kW	8	Enhanced LCD / Full Numeric

The first four models provide lower-current alternatives within the same 690 VAC PowerFlex 755 family.

The 500 A JN4 configuration provides essentially the same high-power class while adding a local enhanced operator interface.

The 690 VAC selection table places the 265 A through 500 A models in the Frame 8 class and shows the progressive Light-Duty, Normal-Duty, and Heavy-Duty ratings.

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36. Detailed Comparison of Related Models

Model	Nominal Current	LD Current	ND Current	HD Current	LD Power	ND Power	HD Power
20G1AJF330JN0NNNNN	330 A	370 A	330 A	265 A	355 kW	315 kW	250 kW
20G1AJF370JN0NNNNN	370 A	410 A	370 A	308 A	400 kW	355 kW	300 kW
20G1AJF415JN0NNNNN	415 A	460 A	415 A	370 A	450 kW	400 kW	355 kW
20G1AJF460JN0NNNNN	460 A	500 A	460 A	375 A	500 kW	450 kW	375 kW
20G1AJF500JN0NNNNN	500 A	530 A	500 A	413 A	530 kW	500 kW	400 kW

This current progression is useful when standardizing a plant around the PowerFlex 755 family.

The drive should still be selected according to the motor nameplate current and actual load profile.

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37. Five Popular Allen-Bradley Models

Model	Series	Voltage	Current / Capacity	Motor Rating	Frame	Protection	Typical Application
25B-D030N114	PowerFlex 525	380–480 VAC	30 A	Approx. 15 kW ND / 11 kW HD	D	IP20	Compact machines
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

These five models cover a much wider range of motor sizes and installation requirements.

The PowerFlex 525 and 527 models are intended for considerably smaller machine-level applications, while the PowerFlex 753 and 755 models address substantially larger industrial motors.

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38. 25B-D030N114

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

It is a compact industrial AC drive intended for applications such as:

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

Its power capacity is far below the 500 A PowerFlex 755.

The main advantage is compactness and machine-level integration rather than large motor capacity.

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39. 25C-D030N114

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

It is intended for networked machine-control applications.

Typical applications include:

• Packaging equipment.
• Small conveyors.
• Automated machinery.
• Material handling.
• Production machines.
• Machine automation.

Compared with the target PowerFlex 755, it is a much smaller drive.

Its value lies in compact machine integration rather than high-power motor control.

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40. 20F1AND302JA0NNNNN

The 20F1AND302JA0NNNNN belongs to the PowerFlex 753 family.

It is intended for larger industrial applications using a 480 VAC motor system.

Potential applications include:

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

It provides an intermediate solution between compact PowerFlex drives and the very high-power PowerFlex 755.

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41. 20G1AJE460JN4NNNNN

The 20G1AJE460JN4NNNNN is a high-power PowerFlex 755 configuration in the 600 VAC class.

It is suitable for large motor applications where the plant uses a 600 VAC electrical system.

Its Frame 8 construction and protected enclosure make it comparable in overall application class to the 690 VAC target model.

The primary difference is the motor-voltage class.

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42. 20G1AJF415JN4NNNNN

The 20G1AJF415JN4NNNNN is a 690 VAC PowerFlex 755 configuration with a lower current rating than the target 500 A model.

It provides:

• 415 A nominal current.
• 450 kW Light Duty.
• 400 kW Normal Duty.
• 355 kW Heavy Duty.
• Frame 8 construction.
• IP54 / Type 12 protection.
• Forced-air cooling.
• Embedded EtherNet/IP.

The JN4 configuration also provides a local enhanced operator interface.

It is therefore an attractive alternative when the motor does not require the full 500 A capacity and local operator access is desired.

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43. Application Selection Table

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
Aeration 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
Process Water Pump	Light / Normal	Excellent
Steel Cooling System	Normal	Very Good
General Process Machinery	Normal / Heavy	Very Good
High-Inertia Machine	Heavy	Requires Engineering Review
Rapid-Stop Machinery	Special	Requires Braking Evaluation
Regenerative Load	Special	Requires Regenerative/Braking Evaluation

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44. Pump System Advantages

Large pump systems can benefit from variable-speed control.

Instead of operating a pump continuously at full speed, the drive can adjust motor speed to match the process requirement.

This can provide improvements in:

• Flow regulation.
• Pressure regulation.
• Process stability.
• Equipment flexibility.
• Mechanical control.
• Energy utilization in suitable variable-torque systems.

For a 500 kW-class pumping system, variable-speed operation can also provide much finer control than a simple fixed-speed motor arrangement.

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45. Fan System Advantages

The same principle applies to large fan systems.

Fan speed can be adjusted according to the actual process demand.

Potential applications include:

• Furnace ventilation.
• Mine ventilation.
• Exhaust.
• Dust collection.
• Cooling.
• Combustion air.
• Process ventilation.

This can improve process flexibility and reduce unnecessary full-speed operation when the process does not require maximum airflow.

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46. Conveyor System Advantages

For large conveyors, controlled acceleration is a major benefit of a variable-frequency drive.

The drive can gradually increase motor speed rather than applying the full mechanical demand immediately.

This can help reduce shock on:

• Gearboxes.
• Couplings.
• Belts.
• Shafts.
• Bearings.
• Drive pulleys.

It also allows conveyor speed to be adjusted according to production requirements.

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47. Mining Advantages

Mining equipment often requires high motor power and centralized monitoring.

The drive can provide:

• High motor-power capacity.
• Variable-speed control.
• Network integration.
• Controlled acceleration.
• Centralized diagnostics.
• Industrial enclosure protection.
• Standardized drive architecture.

This makes it suitable for large mining auxiliary and process systems.

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48. Water-System Advantages

Large water systems often have changing process requirements.

For example, pump speed may need to change according to:

• Tank level.
• Discharge pressure.
• Flow demand.
• Process demand.

The PowerFlex 755 can operate as part of a closed-loop control system in which the controller continuously adjusts motor speed.

This is one of the most practical uses of a high-power variable-speed drive.

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49. Process-Control Advantages

The combination of high-power motor control and EtherNet/IP provides a convenient architecture for automated plants.

A typical system can be arranged as:

Process Sensor

↓

PLC / DCS

↓

EtherNet/IP

↓

PowerFlex 755

↓

Motor

The controller can monitor the drive and adjust the operating reference according to process requirements.

This architecture is particularly useful when a plant contains many large variable-speed motors.

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50. Installation Considerations

Electrical Room

Because the drive is a Frame 8 high-power unit, adequate installation space is essential.

The electrical room should provide:

• Sufficient floor area.
• Adequate ventilation.
• HVAC capacity.
• Maintenance access.
• Cable-entry space.
• Door clearance.
• Transportation access.
• Lifting provisions.

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Floor Loading

The approximate basic Frame 8 reference weight is around 644 kg.

The final installed assembly may be heavier.

Floor loading should therefore be checked during project engineering.

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Transportation

A height of approximately 2477 mm requires careful transportation planning.

Before installation, the following should be checked:

• Door dimensions.
• Ceiling clearance.
• Turning radius.
• Forklift capacity.
• Lifting equipment.
• Transport route.
• Final cabinet location.

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51. Cooling and HVAC Requirements

The drive produces significant heat because of its high electrical capacity.

The electrical room should therefore be designed to remove the combined heat generated by all installed equipment.

Important considerations include:

• Room temperature.
• Airflow.
• Cooling capacity.
• Dust control.
• Filter maintenance.
• Cooling-fan condition.
• Airflow clearance.

For installations containing multiple 500 A-class drives, HVAC calculations should consider the total drive-room heat load rather than evaluating each drive independently.

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52. Maintenance Considerations

A large industrial drive should be incorporated into a preventive-maintenance program.

Maintenance activities can include:

• Cooling-system inspection.
• Fan inspection.
• Cabinet inspection.
• Electrical connection inspection.
• Grounding inspection.
• Motor-cable inspection.
• Network communication checks.
• Fault-history review.
• Environmental inspection.
• Airflow inspection.

The No-HIM configuration is well suited to facilities where maintenance personnel access diagnostics through centralized systems or engineering tools.

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53. Network Architecture

The embedded EtherNet/IP capability allows the drive to operate as part of a larger industrial control network.

A typical architecture may contain:

Central PLC

↓

Industrial Ethernet

↓

Multiple PowerFlex 755 Drives

↓

Large Industrial Motors

The same network can be used to monitor:

• Drive status.
• Motor current.
• Frequency.
• Faults.
• Alarms.
• Speed references.
• Operating conditions.

This can reduce the need for independent local control stations.

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54. Plant Standardization

For a large plant, using several current ratings from the same PowerFlex 755 family can simplify engineering.

A typical motor-drive selection structure can be organized around:

Drive Model	Current	LD Power	ND Power	HD Power
20G1AJF330JN0NNNNN	330 A	355 kW	315 kW	250 kW
20G1AJF370JN0NNNNN	370 A	400 kW	355 kW	300 kW
20G1AJF415JN0NNNNN	415 A	450 kW	400 kW	355 kW
20G1AJF460JN0NNNNN	460 A	500 kW	450 kW	375 kW
20G1AJF500JN0NNNNN	500 A	530 kW	500 kW	400 kW

This creates a straightforward current-capacity progression for large 690 VAC motor systems.

Plant standardization can simplify:

• Spare-parts management.
• Technician training.
• Commissioning.
• Maintenance.
• Control-system integration.
• Drive parameter management.
• Troubleshooting.

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55. Important Engineering Selection Factors

Before applying the 20G1AJF500JN0NNNNN to a motor, the following should be checked:

Selection Item	Engineering Requirement
Supply Voltage	690 VAC
Supply Phase	Three Phase
Motor Voltage	Verify
Motor Current	Verify
Motor Power	Verify
Duty Classification	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
Installation Altitude	Verify
Cooling	Forced Air
Enclosure Environment	Verify
Motor Cable Length	Verify
EMC Requirements	Verify
Grounding System	Verify
CM Jumper Configuration	Installed
Local HIM Requirement	No HIM
Network Architecture	EtherNet/IP

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56. Quick Reference Parameter Table

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 750-Series
Drive	PowerFlex 755
Model	20G1AJF500JN0NNNNN
Voltage	690 VAC
Phase	Three Phase
Nominal 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 Style	MCC Style
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	Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Operating Temperature Reference	-20 to +60 °C
Storage Temperature Reference	-40 to +70 °C
Typical Applications	Pumps, fans, blowers, conveyors, mining, cement, water, process industries

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57. Overall Product Advantages

The 20G1AJF500JN0NNNNN combines several characteristics that are valuable in large industrial drive systems.

Its 690 VAC voltage class is appropriate for large motors.

Its 500 A nominal current rating provides substantial motor-control capacity.

Its 530 kW Light-Duty, 500 kW Normal-Duty, and 400 kW Heavy-Duty ratings allow the same drive platform to address different application load profiles.

Its Frame 8 IP54 / Type 12 construction provides a protected industrial cabinet arrangement.

Its forced-air cooling is suitable for the thermal requirements associated with this high-power class.

Its embedded EtherNet/IP capability allows integration into centralized automation systems.

Its No-HIM configuration is particularly useful for plants where the main operator interface is located remotely.

Its CM jumper installed configuration differentiates it from the related AN0 model and can be selected according to the plant’s electrical and EMC requirements.

Its no-dynamic-braking configuration is well suited to applications where regenerative energy is limited or where braking is not a primary requirement.

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58. Recommended Application Categories

The model can be considered for the following application categories:

Water Infrastructure

Large pumping stations, water transfer, cooling-water systems, industrial wastewater, and process-water systems.

Mining

Large ventilation fans, dewatering pumps, conveyors, and material-processing equipment.

Cement

Large fans, blowers, conveyors, material handling, dust collection, and plant utilities.

Steel and Metal

Cooling-water pumps, process fans, exhaust systems, conveyors, and auxiliary equipment.

Manufacturing

Large process machines, pumps, fans, blowers, and material-handling systems.

Utilities

Large pumps, fans, blowers, cooling systems, and other high-power auxiliary equipment.

Process Industries

Large variable-speed process machinery requiring centralized monitoring and control.

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59. Final Product Assessment

The Allen-Bradley 20G1AJF500JN0NNNNN is a high-capacity PowerFlex 755 AC drive designed for large industrial motor applications.

Its core specification can be summarized as:

690 VAC

500 A

530 kW Light Duty

500 kW Normal Duty

400 kW Heavy Duty

Frame 8

IP54 / Type 12

800 mm Deep MCC Style

Forced Air

Embedded EtherNet/IP

Filtered

CM Jumper Installed

No Dynamic Braking

No HIM

The combination of high voltage, high current, protected cabinet construction, network communication, and multiple duty ratings makes the drive suitable for large pumps, fans, blowers, conveyors, mining equipment, cement equipment, water systems, and process machinery.

The JN0 configuration is particularly attractive when a project requires the 690 VAC / 500 A PowerFlex 755 platform with the CM jumper installed and without a local HIM.

For installations that require a local operator interface, the closely related 20G1AJF500JN4NNNNN is a more appropriate configuration.

For projects requiring a lower current rating, the 330 A, 370 A, 415 A, and 460 A JN0 models provide a logical progression within the same 690 VAC PowerFlex 755 family.

For large industrial plants, this family approach can simplify engineering, commissioning, maintenance, spare-parts management, and operator training.

Overall, the 20G1AJF500JN0NNNNN is best regarded as a high-power, network-ready, enclosed industrial variable-frequency drive for large 690 VAC motor systems where centralized automation and substantial motor-control capacity are required.