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Allen-Bradley 20G1ALE435JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1ALE435JN0NNNNN is a high-power AC variable frequency drive from the PowerFlex 755 series. It is designed for large three-phase industrial motor applications where accurate speed control, reliable motor operation, network connectivity, and flexible drive configuration are required.

The unit is an air-cooled PowerFlex 755 AC packaged drive with a 600 VAC, three-phase input class and a rated current of 435 A. It is designed around a Frame 8 mechanical platform and an 800 mm deep MCC-style configuration.

The drive is supplied with embedded EtherNet/IP communication capability, making it suitable for integration into industrial automation systems where the drive needs to exchange operating data, commands, status information, alarms, and diagnostic information with a control system.

The JN0NNNNN configuration is specified with the CM jumper installed, filtered input configuration, no dynamic braking option, and no HIM installed. It also uses AC input with precharge and does not provide external DC terminals in this configuration.

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2. Brand and Series

Item	Description
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Product Configuration	Air-Cooled AC Packaged Drive
Model	20G1ALE435JN0NNNNN
Frame	Frame 8
Mounting / Construction	800 mm Deep MCC Style
Cooling	Air Cooled
Communication	Embedded EtherNet/IP
Input	AC Input with Precharge
Application Class	Industrial Motor Control
Enclosure Class	Type 1 / IP20

The PowerFlex 755 family is intended for larger industrial drive applications and provides a broader range of motor-control, communications, feedback, and application functions than a basic general-purpose VFD.

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3. Main Technical Specifications

Parameter	Specification
Model	20G1ALE435JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	AC Variable Frequency Drive
Rated Voltage	600 VAC class
Input Phase	3 Phase
Rated Current	435 A
Light Duty Rating	500 HP
Normal Duty Rating	450 HP
Heavy Duty Rating	350 HP
Frame Size	Frame 8
Cooling Method	Air Cooled
Enclosure Style	Type 1 / IP20
Cabinet Depth	800 mm
Input Type	AC Input with Precharge
DC Terminals	None
Input Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Human Interface Module	Blank / No HIM
Network	Embedded EtherNet/IP
Motor Control	Variable Frequency AC Motor Control
Typical Application	Large Industrial Motors
Approximate Mechanical Class	Large Floor/Cabinet Mounted Drive
Approximate Planning Dimensions	About 2450 × 600 × 800 mm*
Approximate Planning Weight	About 85–100 kg*

*The 800 mm cabinet depth is part of the published configuration. Overall height, width, and shipping/installed weight can vary with the exact mechanical arrangement and associated hardware. The dimensional and weight figures above should therefore be treated as engineering planning values rather than certified shipping dimensions. Final installation should use the dimensional drawing for the exact unit.

The 435 A, 500 HP LD, 450 HP ND, 350 HP HD, 600 VAC, three-phase, Frame 8 and 800 mm MCC-style specifications correspond to the identified catalog configuration.

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4. Duty Rating

One of the important characteristics of the 20G1ALE435JN0NNNNN is its multiple motor-duty capability.

Duty Classification	Motor Rating
Light Duty (LD)	500 HP
Normal Duty (ND)	450 HP
Heavy Duty (HD)	350 HP

This allows the same drive platform to be selected for different motor-load requirements.

The Light Duty rating is suitable for applications where the motor normally operates under relatively moderate loading and the required overload performance is lower.

Normal Duty operation is appropriate for many general industrial loads where the motor experiences regular changes in load but does not operate continuously under severe overload conditions.

Heavy Duty operation is intended for applications requiring higher torque capability and more demanding motor loading. The available horsepower rating decreases under the more demanding duty classification because the drive must operate within a more conservative thermal and overload envelope.

For actual motor selection, the duty classification should always be matched to the motor nameplate current and the application’s required overload profile rather than selecting the drive based only on horsepower.

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5. Electrical Input Configuration

The 20G1ALE435JN0NNNNN is designed for a 600 VAC class three-phase electrical system.

Input Parameter	Specification
Input Voltage Class	600 VAC
Input Phase	3 Phase
Input Type	AC Input
Precharge	Included
External DC Terminals	None
Input Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None

The AC input with precharge configuration is designed for controlled energization of the drive’s DC bus during startup.

The absence of external DC terminals means that this particular configuration should not be treated as a drive package intended for external DC-bus connection without checking the applicable engineering documentation.

The filtered configuration is intended to provide an integrated approach to input-side filtering requirements. The exact system-level requirements still depend on the installation environment, electrical distribution system, applicable standards, and surrounding equipment.

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6. Output and Motor Control

The drive provides variable-frequency control of three-phase AC motors.

Output Parameter	Specification
Rated Drive Current	435 A
Motor Voltage Class	600 VAC class
Motor Type	Three-Phase AC Motor
LD Motor Rating	500 HP
ND Motor Rating	450 HP
HD Motor Rating	350 HP
Control Method	Variable Frequency Motor Control
Cooling	Air Cooled
Frame	Frame 8

The drive adjusts the output frequency and voltage according to the selected motor-control configuration and operating requirements.

This allows the motor to operate at variable speeds rather than simply running at the fixed speed associated with direct-on-line operation.

For large industrial equipment, variable-speed operation can provide significant advantages because the motor speed can be adjusted according to process requirements.

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7. Product Introduction

The Allen-Bradley 20G1ALE435JN0NNNNN PowerFlex 755 is intended for high-power industrial motor applications where a combination of high current capacity, flexible motor control, network communication, and industrial-grade construction is required.

Its 435 A rating places it in the high-current range of the PowerFlex 755 family.

The drive is particularly suited to large motors used in pumps, fans, compressors, conveyors, material-handling systems, process equipment, production machinery, and other industrial systems requiring controlled acceleration, deceleration, and variable-speed operation.

The Frame 8 construction and 800 mm deep MCC-style design make the unit appropriate for larger electrical rooms, motor-control centers, drive cabinets, and industrial equipment installations where a compact wall-mounted VFD is not practical.

The embedded EtherNet/IP interface also allows the drive to become part of a larger automation architecture rather than operating as an isolated motor controller.

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8. Embedded EtherNet/IP Communication

One of the major features of the 20G1ALE435JN0NNNNN is its embedded EtherNet/IP capability.

This allows the drive to communicate with industrial controllers and automation equipment over an Ethernet-based industrial network.

Typical information exchanged through the network can include:

• Start and stop commands.
• Speed reference.
• Output frequency.
• Motor current.
• Drive status.
• Fault information.
• Alarm information.
• Acceleration and deceleration commands.
• Operating parameters.
• Diagnostic information.
• Drive control status.

This type of network integration is particularly useful in centralized automation systems.

Instead of installing separate hardwired control circuits for every drive command and status signal, the drive can exchange a substantial amount of operating information through the industrial network.

For large production lines, this can simplify system architecture and make drive status available to operators and maintenance personnel through the plant control system.

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9. CM Jumper Configuration

The specified 20G1ALE435JN0NNNNN configuration is identified with the CM jumper installed.

The common-mode configuration is an important consideration in drive installations because high-frequency electrical behavior can affect motor cables, grounding systems, electromagnetic compatibility, and bearing-current considerations.

The exact CM configuration should be selected according to the motor, cable length, grounding arrangement, installation environment, and applicable drive installation requirements.

The fact that this catalog configuration is supplied with the CM jumper installed is an important distinction when comparing it with otherwise similar catalog numbers that use a different CM jumper configuration.

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10. Cooling System

The drive uses forced air cooling.

At 435 A, substantial electrical power is being converted and controlled, so thermal management is an important part of installation design.

The installation should provide adequate airflow around the drive and should prevent hot exhaust air from being recirculated into the drive’s cooling inlet.

The electrical room or enclosure should be designed with sufficient ventilation and heat-removal capability for the complete installation.

Air filters, cooling fans, cabinet ventilation, and surrounding equipment should be inspected periodically in environments with dust, fibers, oil mist, or other contaminants.

A high-power drive can remain electrically functional while gradually losing thermal performance because of restricted airflow, making cooling-system maintenance an important part of long-term reliability.

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11. Enclosure and Mechanical Construction

The catalog configuration is identified as Type 1 / IP20 and uses an 800 mm deep MCC-style construction.

Mechanical Parameter	Specification
Frame	Frame 8
Enclosure Classification	Type 1 / IP20
Cabinet Style	MCC Style
Cabinet Depth	800 mm
Cooling	Air Cooled
Installation	Industrial Electrical Cabinet / MCC Environment
Approx. Planning Height	2450 mm*
Approx. Planning Width	600 mm*
Approx. Planning Depth	800 mm
Approx. Planning Weight	85–100 kg*

*Planning values only. The final mechanical drawing should be used for fabrication, transportation, lifting, clearance, and installation calculations.

The 800 mm depth is a particularly important dimension for cabinet planning. This is substantially deeper than many small and medium VFDs, so the available floor space and front access area should be considered before installation.

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12. Dimensions and Weight

For project planning purposes, the drive should be treated as a large industrial cabinet-mounted drive.

Item	Approximate Value
Height	Approx. 2450 mm
Width	Approx. 600 mm
Depth	800 mm
Weight	Approx. 85–100 kg
Mechanical Class	Large Frame 8 Industrial Drive

The 800 mm depth is directly associated with the specified MCC-style configuration.

The approximate height, width, and weight should not be used as fabrication or lifting-certified values. The final mechanical drawing for the exact supplied configuration should be checked before designing the cabinet, foundation, transport arrangement, lifting equipment, or service clearances.

For purchasing specifications, it is advisable to list the dimensions as “approximate” until the final mechanical drawing is confirmed.

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13. Product Applications

The 20G1ALE435JN0NNNNN is intended for large industrial motor applications.

Typical applications include:

• Large water pumps.
• Wastewater pumps.
• Cooling-water systems.
• Process pumps.
• Large centrifugal fans.
• Industrial ventilation systems.
• Air-handling equipment.
• Large compressors.
• Conveyors.
• Material-handling machinery.
• Crushers.
• Process machinery.
• Production lines.
• Industrial mixers.
• Large machine tools.
• Manufacturing equipment.
• Bulk-material handling systems.
• Industrial extraction and ventilation equipment.
• Large mechanical drive systems.

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14. Pump Applications

Large pumps are one of the most suitable application areas for a high-current variable frequency drive.

For centrifugal pumps, reducing motor speed can significantly change the operating point of the pump.

A VFD allows the pump motor to be controlled according to actual process demand rather than continuously operating at full speed.

Typical applications include:

• Water distribution.
• Industrial water circulation.
• Cooling-water pumps.
• Boiler-related systems.
• Wastewater treatment.
• Process-water circulation.
• Chemical process pumping.
• Large irrigation systems.
• Industrial utility systems.

The PowerFlex 755 architecture can also provide useful operating and diagnostic information to a supervisory control system through network communication.

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15. Fan and Blower Applications

Large fans and blowers frequently require variable-speed control because airflow demand changes during normal operation.

Applications can include:

• Industrial ventilation.
• Furnace exhaust.
• Dust collection.
• Air handling.
• Process ventilation.
• Cooling towers.
• Large exhaust systems.
• Mining ventilation.
• Industrial combustion air systems.

Variable-speed control can reduce unnecessary motor operation at full speed when the process requires less airflow.

The drive can therefore be used as part of an overall process-control strategy rather than simply functioning as an electronic starter.

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16. Conveyor Applications

The 20G1ALE435JN0NNNNN can also be applied to large conveyor systems where controlled acceleration and speed regulation are required.

Typical examples include:

• Mining conveyors.
• Bulk material conveyors.
• Port material-handling systems.
• Aggregate handling.
• Cement plants.
• Steel processing.
• Warehouse material handling.
• Production-line conveyors.

A variable-speed drive allows the conveyor speed to be adjusted according to production requirements.

Controlled acceleration can also reduce mechanical shock compared with direct motor starting.

For demanding conveyor applications, motor current, load torque, acceleration time, stopping requirements, and mechanical inertia should be evaluated carefully when selecting the drive.

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17. Compressor Applications

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

Potential applications include:

• Process-air compressors.
• Industrial gas systems.
• Cooling systems.
• Manufacturing facilities.
• Utility compressors.
• Process plants.

Compressor applications require careful consideration of the compressor’s torque characteristics and minimum operating speed.

The drive should be selected according to the actual motor current and compressor load rather than relying solely on the nominal horsepower rating.

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18. Process Machinery

The PowerFlex 755 platform is suitable for a wide range of process machinery.

Examples include:

• Mixers.
• Agitators.
• Extrusion equipment.
• Large machine systems.
• Production machinery.
• Material-processing equipment.
• Industrial fans.
• Roll systems.
• Mechanical processing systems.
• Large rotating equipment.

Where the process requires precise speed adjustment, controlled acceleration, controlled deceleration, and centralized drive monitoring, a high-power VFD can provide a significant improvement over simple fixed-speed motor operation.

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19. Main Product Advantages

19.1 High Current Capacity

The 435 A rating makes this drive suitable for large industrial motors.

It is intended for applications where a small or medium-frame VFD would not provide sufficient current capacity.

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19.2 Multiple Duty Ratings

The drive supports different motor-duty classifications:

Duty	Motor Rating
Light Duty	500 HP
Normal Duty	450 HP
Heavy Duty	350 HP

This allows the same basic drive platform to cover different load characteristics.

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19.3 Embedded EtherNet/IP

The integrated network interface reduces the need for separate communication hardware.

It provides a convenient way to integrate drive operation into an industrial control system.

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19.4 Large Industrial Motor Compatibility

The PowerFlex 755 platform is designed for larger motor applications where high power, control flexibility, and industrial communication are important.

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19.5 Air-Cooled Architecture

Air cooling provides a practical solution for large industrial installations where appropriate cabinet ventilation and heat dissipation are available.

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19.6 Flexible Application Range

The drive can be used in many types of equipment, including pumps, fans, compressors, conveyors, process machinery, and material-handling systems.

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19.7 Industrial Network Integration

The drive can exchange operating and diagnostic information with a control system through EtherNet/IP.

This can simplify monitoring and reduce the amount of traditional point-to-point wiring required for drive status and commands.

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19.8 Controlled Motor Acceleration

Variable-frequency operation allows the motor to accelerate progressively instead of being connected directly to the full line voltage at startup.

This can reduce mechanical shock and help control process behavior.

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19.9 Controlled Deceleration

The drive can also provide controlled deceleration according to the configured motor-control strategy.

The actual stopping method must be selected according to the load inertia, stopping time, braking requirements, and application safety requirements.

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20. Installation Considerations

The 20G1ALE435JN0NNNNN is a large industrial drive, so installation planning is important.

The following items should be evaluated:

• Available cabinet space.
• Floor loading.
• Ventilation.
• Cooling airflow.
• Ambient temperature.
• Motor cable length.
• Motor cable construction.
• Grounding.
• Input protection.
• Short-circuit considerations.
• Electromagnetic compatibility.
• Service clearance.
• Network cabling.
• Motor grounding.
• Cabinet ventilation.
• Maintenance access.
• Lifting and transportation requirements.

The 800 mm deep MCC-style configuration should be taken into account when planning the electrical room.

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21. Maintenance Considerations

Regular maintenance is particularly important for a high-power air-cooled drive.

Recommended maintenance activities include:

• Inspect cooling fans.
• Check ventilation openings.
• Remove accumulated dust.
• Inspect electrical connections.
• Check signs of overheating.
• Inspect cabinet airflow.
• Inspect motor cables.
• Check grounding connections.
• Review drive fault history.
• Review operating temperatures.
• Inspect network connections.
• Check for abnormal noise or vibration.
• Confirm cooling-system operation.

A clean and adequately ventilated installation helps maintain the drive’s thermal performance.

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22. Network and Control Advantages

The embedded EtherNet/IP architecture can be especially useful when multiple drives are installed within one production system.

For example, a control system may monitor several large motors simultaneously.

The controller can receive drive status information while sending speed or operating commands to individual drives.

This can simplify the control architecture of systems containing:

• Multiple pumps.
• Multiple fans.
• Conveyor sections.
• Process motors.
• Cooling systems.
• Production machinery.
• Material-handling equipment.

Instead of treating each drive as an isolated device, the drives can be incorporated into a coordinated control system.

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23. Recommended Same-Series Models

The following models are closely related PowerFlex 755 configurations and are useful for comparison when selecting a drive for a large-motor application.

Model	Series	Current	LD Rating	ND Rating	HD Rating	Voltage Class	Construction
20G1ALE355JN0NNNNN	PowerFlex 755	355 A	400 HP	350 HP	300 HP	600 VAC	Air Cooled, Frame 8 class
20G1ALE395JN0NNNNN	PowerFlex 755	395 A	450 HP	400 HP	350 HP	600 VAC	Air Cooled
20G1ALE435JN0NNNNN	PowerFlex 755	435 A	500 HP	450 HP	350 HP	600 VAC	Air Cooled, Frame 8
20G1ALE460JN0NNNNN	PowerFlex 755	460 A	500 HP	500 HP	400 HP	600 VAC	Air Cooled
20G1ALE510JN0NNNNN	PowerFlex 755	510 A	550 HP	500 HP	450 HP	600 VAC	Air Cooled

These models belong to the same PowerFlex 755 high-power family and provide a useful current and horsepower range around the 435 A configuration. The published catalog listings identify the 355 A, 395 A, 435 A, 460 A and 510 A configurations with the corresponding duty ratings shown above.

For replacement or new-project selection, the motor nameplate current should be compared against the drive rating before selecting a higher or lower current model.

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24. Same-Series Comparison

Specification	20G1ALE355JN0NNNNN	20G1ALE395JN0NNNNN	20G1ALE435JN0NNNNN	20G1ALE460JN0NNNNN	20G1ALE510JN0NNNNN
Series	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755
Current	355 A	395 A	435 A	460 A	510 A
LD	400 HP	450 HP	500 HP	500 HP	550 HP
ND	350 HP	400 HP	450 HP	500 HP	500 HP
HD	300 HP	350 HP	350 HP	400 HP	450 HP
Voltage	600 VAC	600 VAC	600 VAC	600 VAC	600 VAC
Cooling	Air	Air	Air	Air	Air
EtherNet/IP	Embedded	Embedded	Embedded	Embedded	Embedded
MCC Depth	800 mm class	800 mm class	800 mm class	800 mm class	800 mm class

The 435 A model sits between the 395 A and 460 A versions, making those two models particularly useful comparison points when determining the required current margin.

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25. Five Same-Brand Popular Reference Models

The following five models are useful same-brand reference models when comparing different PowerFlex 755 current levels.

Model	Brand	Series	Current	LD	ND	HD	Voltage
20G1ALE295JN0NNNNN	Allen-Bradley	PowerFlex 755	295 A	350 HP	300 HP	250 HP	600 VAC
20G1ALE355JN0NNNNN	Allen-Bradley	PowerFlex 755	355 A	400 HP	350 HP	300 HP	600 VAC
20G1ALE395JN0NNNNN	Allen-Bradley	PowerFlex 755	395 A	450 HP	400 HP	350 HP	600 VAC
20G1ALE435JN0NNNNN	Allen-Bradley	PowerFlex 755	435 A	500 HP	450 HP	350 HP	600 VAC
20G1ALE460JN0NNNNN	Allen-Bradley	PowerFlex 755	460 A	500 HP	500 HP	400 HP	600 VAC

These models form a practical comparison group because they remain within the same PowerFlex 755 product family and cover progressively higher current capacities.

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26. 20G1ALE435JN0NNNNN vs. 20G1ALE395JN0NNNNN

The 395 A model is a useful lower-current comparison.

Parameter	20G1ALE395JN0NNNNN	20G1ALE435JN0NNNNN
Current	395 A	435 A
LD	450 HP	500 HP
ND	400 HP	450 HP
HD	350 HP	350 HP
Voltage	600 VAC	600 VAC
Series	PowerFlex 755	PowerFlex 755
Cooling	Air Cooled	Air Cooled
Network	Embedded EtherNet/IP	Embedded EtherNet/IP
MCC Style	800 mm class	800 mm class

The 435 A configuration provides additional current capacity over the 395 A version and therefore provides a larger operating range for higher-current motors.

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27. 20G1ALE435JN0NNNNN vs. 20G1ALE460JN0NNNNN

The 460 A configuration is the next useful higher-current comparison.

Parameter	20G1ALE435JN0NNNNN	20G1ALE460JN0NNNNN
Current	435 A	460 A
LD	500 HP	500 HP
ND	450 HP	500 HP
HD	350 HP	400 HP
Voltage	600 VAC	600 VAC
Series	PowerFlex 755	PowerFlex 755
Cooling	Air Cooled	Air Cooled
Network	Embedded EtherNet/IP	Embedded EtherNet/IP

The 460 A version provides additional current capacity and higher duty ratings for certain operating conditions.

If the motor is close to the current limit of the 435 A configuration, the higher-current model may be considered, subject to the actual motor nameplate current, duty cycle, ambient conditions, overload requirements, and installation conditions.

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28. Typical Equipment Suitable for This Drive

The following equipment categories can make practical use of a drive in this current range:

Equipment	Typical Drive Requirement
Large centrifugal pump	Variable speed and process control
Cooling-water pump	Continuous industrial operation
Large fan	Variable airflow
Industrial blower	Variable speed
Compressor	Controlled motor speed
Mining conveyor	High torque and controlled acceleration
Bulk material conveyor	Large motor control
Process mixer	Variable-speed operation
Production machinery	Speed regulation
Industrial ventilation	Variable airflow
Water-treatment equipment	Pump control
Large mechanical drive	Controlled motor operation

The actual suitability of the drive must be determined from the motor nameplate current, motor voltage, load torque, acceleration requirements, environmental conditions, and required overload capability.

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29. Electrical Advantages

The 20G1ALE435JN0NNNNN provides several electrical advantages for large industrial motor systems.

First, its 435 A current rating provides substantial motor capacity.

Second, the 600 VAC three-phase configuration is suitable for high-power industrial electrical systems.

Third, the integrated precharge arrangement supports controlled energization of the drive.

Fourth, the embedded EtherNet/IP interface supports integration into a modern industrial automation network.

Fifth, the filtered configuration provides an integrated approach to input filtering within the specified drive configuration.

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30. Mechanical Advantages

The Frame 8, 800 mm deep MCC-style construction is intended for large industrial installations.

The cabinet-style arrangement is particularly suitable for electrical rooms and motor-control-center environments where multiple large drives may be installed together.

The air-cooled architecture also provides a practical method of removing drive-generated heat in installations with sufficient ventilation.

Because of the physical size of this type of drive, installation planning should be completed before delivery.

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31. Control Advantages

The PowerFlex 755 platform provides a flexible environment for controlling large motors.

Typical control requirements can include:

• Variable-speed operation.
• Controlled acceleration.
• Controlled deceleration.
• Speed reference control.
• Drive status monitoring.
• Fault monitoring.
• Alarm monitoring.
• Network-based commands.
• Process coordination.

The embedded network interface is especially useful when drive control needs to be integrated into a centralized automation system.

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32. Maintenance Advantages

The drive’s network capability can also simplify maintenance.

A control or supervisory system can monitor operating information without requiring maintenance personnel to stand directly next to the drive for every diagnostic task.

Drive status and fault information can be made available to maintenance personnel through the automation system.

This can help reduce troubleshooting time in installations where multiple large drives are operating simultaneously.

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33. Selection Guidelines

When selecting the 20G1ALE435JN0NNNNN, the following information should be checked against the motor and application:

1. Motor nameplate voltage.
2. Motor nameplate current.
3. Motor horsepower.
4. Motor frequency.
5. Required operating speed.
6. Maximum operating speed.
7. Minimum operating speed.
8. Load torque characteristics.
9. Starting torque requirement.
10. Acceleration time.
11. Deceleration time.
12. Required stopping method.
13. Duty cycle.
14. Ambient temperature.
15. Installation altitude.
16. Motor cable length.
17. Motor cable type.
18. Grounding arrangement.
19. Required communication network.
20. Required safety functions.
21. Cabinet ventilation.
22. Available floor space.
23. Maintenance clearance.
24. Input protection.
25. System short-circuit requirements.

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34. Motor Selection Considerations

Horsepower alone should not be used as the final selection criterion.

The most important value for drive sizing is normally the motor’s actual full-load current and the application’s required overload performance.

For example, two motors with the same horsepower can have different nameplate currents because of differences in voltage, efficiency, power factor, motor design, and operating conditions.

Therefore, a final selection should compare the motor nameplate current with the appropriate drive duty rating.

For pumps and fans, the normal operating load may be considerably different from the maximum possible load.

For conveyors, mixers, crushers, compressors, and other high-torque equipment, the heavy-duty requirement may be more important than the nominal horsepower.

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35. Application Advantages in Large Industrial Systems

The 20G1ALE435JN0NNNNN is particularly useful where the motor is too large for compact general-purpose drives.

A large industrial facility may use several drives of different current ratings.

The PowerFlex 755 family allows these drives to be organized around a common control philosophy and communication architecture.

This can simplify engineering, commissioning, operator training, spare-parts planning, and maintenance procedures.

A plant may therefore use a combination of 295 A, 355 A, 395 A, 435 A, 460 A, and higher-current PowerFlex 755 models according to the motor requirements of individual machines.

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36. Product Configuration Summary

Category	20G1ALE435JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product	Air-Cooled 755 AC Drive
Current	435 A
Voltage	600 VAC
Phase	3 Phase
LD Rating	500 HP
ND Rating	450 HP
HD Rating	350 HP
Frame	Frame 8
Cabinet Depth	800 mm
Enclosure	Type 1 / IP20
Cooling	Air Cooled
Network	Embedded EtherNet/IP
Input	AC with Precharge
DC Terminals	None
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Approx. Height	2450 mm*
Approx. Width	600 mm*
Depth	800 mm
Approx. Weight	85–100 kg*

*Approximate engineering-planning values; verify final dimensions and weight against the mechanical drawing of the supplied unit.

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37. Short Technical Product Description

The Allen-Bradley 20G1ALE435JN0NNNNN is a PowerFlex 755 high-power, air-cooled AC variable frequency drive rated at 435 A for 600 VAC three-phase industrial motor systems.

It provides 500 HP Light Duty, 450 HP Normal Duty, and 350 HP Heavy Duty capability, with Frame 8 construction and an 800 mm deep MCC-style configuration.

The drive includes embedded EtherNet/IP communication, AC input with precharge, filtered input configuration, CM jumper installed, no external DC terminals, no dynamic braking, and no HIM in the specified configuration.

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38. Final Product Description

The Allen-Bradley 20G1ALE435JN0NNNNN PowerFlex 755 is a high-current industrial AC drive designed for large three-phase motor applications.

With a 435 A rating and 600 VAC class input, it is suited to large pumps, fans, blowers, compressors, conveyors, process machinery, production equipment, and other industrial rotating machinery.

Its 500 HP Light Duty, 450 HP Normal Duty, and 350 HP Heavy Duty ratings provide flexibility for different load conditions.

The embedded EtherNet/IP interface makes the drive suitable for networked automation systems where motor commands, operating values, status information, alarms, and diagnostics need to be exchanged with a control system.

The air-cooled Frame 8 construction and 800 mm deep MCC-style configuration are intended for larger industrial electrical installations.

The specified JN0NNNNN configuration is characterized by filtered input, CM jumper installed, AC input with precharge, no external DC terminals, no dynamic braking, and no HIM.

For projects involving replacement, retrofit, or new installation, the 20G1ALE435JN0NNNNN should be evaluated against the actual motor nameplate current, duty cycle, load characteristics, environmental conditions, available electrical supply, motor cable arrangement, cabinet dimensions, cooling requirements, and control architecture.

Overall, this model is best regarded as a high-power PowerFlex 755 drive configuration for demanding industrial motor-control systems where high current capacity, network integration, variable-speed operation, and large-frame construction are required.