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Allen-Bradley 20G1AJE435AN0NNNNN PowerFlex 755 Air-Cooled AC Drive

1. Product Overview

The Allen-Bradley 20G1AJE435AN0NNNNN is a high-power PowerFlex 755 Series air-cooled AC drive designed for large industrial motor-control applications.

This model is a Frame 8 packaged drive configured for 600 VAC, three-phase power, with a catalog current rating of 435 A. It is intended for large motors and demanding industrial machinery where high power capacity, controlled acceleration, variable-speed operation, and reliable process control are required.

The drive provides approximately 500 HP Light Duty, 450 HP Normal Duty, and 350 HP Heavy Duty capability. These duty ratings allow the same general drive platform to be matched to different machine operating conditions, from relatively moderate continuous loads to applications requiring higher overload capability.

The 20G1AJE435AN0NNNNN uses an air-cooled architecture and is packaged in an 800 mm deep MCC-style enclosure with a Type 12 / IP54 enclosure rating. The large enclosed construction is intended for industrial electrical installations where protection of the power electronics and controlled installation conditions are important.

The drive incorporates an AC input with precharge and no DC terminals, an EMC filter, and a CM jumper removed configuration. It also includes embedded EtherNet/IP capability for integration with industrial automation systems.

Unlike the N4 versions of the same product family, the N0 configuration is supplied without a HIM. This makes the model suitable for installations where local drive operation is handled through a control system, remote HMI, engineering workstation, or another external operator interface.

The combination of high current capability, large-frame construction, industrial enclosure, embedded communication, and PowerFlex 755 control architecture makes this model suitable for large pumps, fans, conveyors, compressors, process machinery, mixers, material-handling systems, and other high-power industrial equipment.

The model is also important from a replacement-planning perspective. The original 20G1AJE435AN0NNNNN configuration has been discontinued, with 20G1AJE435JN0NNNNN identified as the direct replacement configuration.

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2. Basic Product Information

Parameter	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 755 AC Packaged Drive
Product Type	Air-Cooled AC Drive
Catalog Number	20G1AJE435AN0NNNNN
Drive Construction	Packaged / Enclosed
Cooling Method	Air Cooled
Input Voltage	600 VAC
Input Phase	Three Phase
Catalog Current	435 A
Light Duty Rating	500 HP
Normal Duty Rating	450 HP
Heavy Duty Rating	350 HP
Frame Size	Frame 8
Enclosure Rating	Type 12 / IP54
Enclosure Style	800 mm Deep MCC Style
Input Type	AC Input with Precharge
DC Terminals	None
Filtering	EMC Filter
CM Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Cooling	Air Cooled
Installation	Industrial MCC / Electrical Cabinet
Approximate Dimensions	Approximately 2100–2500 × 600 × 800 mm
Approximate Weight	Approximately 600–650 kg

The dimensions and weight should be treated as practical planning values for the large Frame 8 packaged configuration. The final installation arrangement can vary according to the complete factory configuration, options, cabinet arrangement, input equipment, and associated accessories.

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3. Catalog Number Configuration

The catalog number 20G1AJE435AN0NNNNN identifies a specific configuration within the PowerFlex 755 family.

Catalog Section	General Description
20G	PowerFlex 755 AC drive family
1	Drive configuration designation
AJE	600 VAC large-frame configuration
435	435 A current class
A	CM jumper removed configuration
N0	Blank / no HIM
NNNNN	Additional configuration positions

The 435 portion is particularly important because it identifies the current class of the drive.

The A configuration identifies the CM jumper removed arrangement.

The N0 configuration identifies the drive as being supplied without a local HIM.

This makes the product different from the related 20G1AJE435AN4NNNNN, which uses the same basic high-power drive architecture but includes an Enhanced LCD Full Numeric HIM.

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4. Electrical Specifications

The 20G1AJE435AN0NNNNN is designed for a 600 VAC three-phase industrial power system.

The catalog current is 435 A, while the applicable current and horsepower capability depends on the selected duty classification.

The drive selection data associates the 435 A catalog position with approximately:

• 460 A continuous Light Duty
• 435 A continuous Normal Duty
• 355 A continuous Heavy Duty

The corresponding motor ratings are approximately:

• 500 HP Light Duty
• 450 HP Normal Duty
• 350 HP Heavy Duty

The overload capabilities are also different depending on the operating duty.

For Normal Duty operation, the drive can provide a substantially higher short-term current than its continuous rating. This is important when the machine requires controlled acceleration or temporary overload torque.

The Heavy Duty rating is lower in continuous current than the Normal Duty rating because Heavy Duty applications generally require greater overload capability and more demanding torque performance.

The distinction between Light Duty, Normal Duty, and Heavy Duty should therefore be taken seriously during engineering selection. A motor should not be matched to the drive based only on horsepower.

Motor nameplate current, acceleration requirements, load inertia, duty cycle, overload requirements, ambient temperature, and actual process conditions should all be evaluated.

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5. Electrical Parameter Table

Parameter	Specification
Catalog Number	20G1AJE435AN0NNNNN
Input Voltage	600 VAC
Input Phase	3 Phase
Catalog Current	435 A
Frame	Frame 8
Light Duty Continuous Current	Approx. 460 A
Light Duty 1-Minute Current	Approx. 506 A
Light Duty Motor Rating	500 HP
Normal Duty Continuous Current	Approx. 435 A
Normal Duty 1-Minute Current	Approx. 479 A
Normal Duty 3-Second Current	Approx. 639 A
Normal Duty Motor Rating	450 HP
Heavy Duty Continuous Current	Approx. 355 A
Heavy Duty 1-Minute Current	Approx. 533 A
Heavy Duty 3-Second Current	Approx. 639 A
Heavy Duty Motor Rating	350 HP
Input Type	AC Input with Precharge
DC Input Terminals	None
Input Filtering	EMC Filter
CM Jumper	Removed
Dynamic Braking	None
Cooling	Air Cooled
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Enclosure	Type 12 / IP54
Cabinet Depth	800 mm MCC Style
Approx. Dimensions	2100–2500 × 600 × 800 mm
Approx. Weight	600–650 kg

The duty-current values above are intended to show the drive’s selection range. Actual permissible operating conditions should always be determined from the applicable drive rating information and the complete installation requirements.

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6. Product Construction

The 20G1AJE435AN0NNNNN is a large industrial packaged drive rather than a small cabinet-mounted compact inverter.

The Frame 8 architecture provides the physical space necessary for high-current power components, bus structures, semiconductor switching devices, cooling equipment, control electronics, protective equipment, and high-power cable connections.

The 800 mm deep MCC-style construction is particularly relevant to installation planning.

Compared with small PowerFlex drives, this product requires considerably more floor space, mechanical support, ventilation planning, cable-routing space, and maintenance clearance.

The enclosure is rated Type 12 / IP54, providing protection appropriate for many industrial electrical-room and MCC-style environments.

The enclosed structure also allows the drive to be incorporated into larger centralized motor-control systems without requiring the user to build an entirely separate enclosure around the power stage.

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7. Dimensions and Weight

The physical size of a Frame 8 packaged PowerFlex 755 is considerably larger than that of compact industrial AC drives.

For preliminary equipment planning, the 20G1AJE435AN0NNNNN can be considered approximately:

Height: 2100–2500 mm

Width: approximately 600 mm

Depth: approximately 800 mm

Weight: approximately 600–650 kg

These values are suitable as preliminary planning figures for layout and equipment handling.

The actual dimensions and shipping weight can vary depending on the complete packaged arrangement and selected equipment.

For final mechanical design, the actual dimensional drawing, equipment configuration, and shipping information should be used.

This is especially important when the equipment must be moved through factory doors, placed on raised floors, transported by forklift, or lifted by crane.

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8. Air-Cooled Design

The product uses an air-cooled power architecture.

For a drive of this size, thermal management is a major part of system reliability.

During normal operation, some electrical energy is dissipated as heat within the drive. The internal cooling system removes this heat and transfers it into the surrounding installation environment.

The installation therefore needs adequate:

• Airflow.
• Ventilation.
• Ambient temperature control.
• Cabinet clearance.
• Cooling-fan operation.
• Air passage clearance.
• Dust management.
• Preventive maintenance.

If the drive is installed in a high-temperature or dusty environment, thermal conditions should be reviewed carefully.

Blocked airflow, contaminated cooling surfaces, or abnormal fan operation can increase internal component temperatures and potentially reduce equipment reliability.

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9. Embedded EtherNet/IP

The 20G1AJE435AN0NNNNN includes embedded EtherNet/IP capability.

This provides an important advantage for industrial automation systems.

The drive can be incorporated into an Ethernet-based control architecture where drive status, commands, operating parameters, diagnostics, and other information are exchanged with the control system.

Typical system-level functions can include:

• Start and stop commands.
• Speed reference.
• Drive status monitoring.
• Fault information.
• Alarm information.
• Motor operating data.
• Drive parameter access.
• Remote troubleshooting.
• Production-system coordination.
• Automated speed control.

This is particularly useful when the drive is part of a larger automated production line.

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10. No HIM Configuration

One of the defining characteristics of the N0 configuration is the absence of a local HIM.

This does not mean that the drive lacks control capability.

Instead, the installation is typically intended to use another interface for operation, commissioning, monitoring, or parameter management.

Possible external interfaces include:

• PLC-based control.
• Remote HMI.
• Engineering workstation.
• Industrial Ethernet system.
• Supervisory control system.
• Centralized operator station.

The N0 configuration can therefore be advantageous in large automated systems where operators do not need to interact directly with a keypad mounted on the drive.

It can also provide a cleaner cabinet arrangement when local operator functions are already available elsewhere in the machine or plant.

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11. EMC Filter

The product is configured with an EMC filter.

EMC management is particularly important in large variable-frequency-drive installations because the inverter generates high-frequency switching components during motor operation.

The filtering arrangement works together with:

• Proper grounding.
• Motor cable shielding.
• Correct cable routing.
• Appropriate cabinet bonding.
• Control-cable separation.
• Correct installation practices.

A well-designed EMC installation can reduce unwanted electrical interference and help maintain reliable operation of nearby automation and instrumentation equipment.

This is particularly important when the drive is installed near PLCs, industrial networks, analog instrumentation, sensors, measurement equipment, or communication systems.

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12. CM Jumper Removed

The A configuration indicates the CM jumper is removed.

This is an important installation characteristic.

The common-mode configuration affects the relationship between the drive’s electrical system and ground and should be considered when designing the overall drive installation.

The CM configuration can influence:

• Common-mode currents.
• Grounding behavior.
• EMC characteristics.
• Motor-cable requirements.
• Bearing-current considerations.
• Compatibility with the surrounding electrical system.

When replacing a drive, the replacement unit should therefore be selected with the correct CM configuration rather than assuming that all 435 A PowerFlex 755 units are electrically identical.

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13. Dynamic Braking

The 20G1AJE435AN0NNNNN is configured with no standard dynamic braking.

This is an important consideration for applications involving high-inertia loads or frequent rapid deceleration.

For applications such as:

• Large conveyors.
• High-inertia fans.
• Large centrifuges.
• Certain material-handling machines.
• High-speed rotating equipment.

the deceleration requirements should be evaluated carefully.

If the machine requires rapid stopping or substantial regenerative energy dissipation, an appropriate braking or regenerative solution may need to be considered as part of the complete system design.

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14. Product Introduction

The PowerFlex 755 family is intended for demanding industrial motor-control applications.

The 20G1AJE435AN0NNNNN represents a high-power enclosed configuration within this family.

It is designed to control large three-phase AC motors while allowing the motor speed to be adjusted according to process requirements.

Traditional fixed-speed motor systems often operate at one frequency and one nominal speed.

A variable-frequency drive allows the motor operating speed to be changed electronically.

This is useful in industrial processes where the motor does not always need to operate at full speed.

For example, a large pump may need different flow rates during different process stages.

A fan may need to adjust airflow according to production demand.

A conveyor may need different speeds depending on the material being transported.

A mixer may require different speeds during different stages of a batch process.

A variable-frequency drive provides the electrical control necessary for these operating conditions.

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15. Typical Industrial Applications

15.1 Large Pump Systems

The 20G1AJE435AN0NNNNN is well suited to large pump applications where the motor power is within the applicable rating.

Typical applications include:

• Industrial water circulation.
• Cooling-water systems.
• Water treatment.
• Process pumping.
• Mining-water systems.
• Industrial fluid transfer.
• Large irrigation systems.

Variable-speed control can allow the pump to respond more closely to actual process requirements.

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15.2 Large Fans

Large industrial fans can consume substantial power when operated continuously.

Variable-speed operation allows fan capacity to be adjusted according to process demand.

Typical applications include:

• Furnace ventilation.
• Industrial exhaust.
• Dust collection.
• Process ventilation.
• Mining ventilation.
• Large cooling systems.
• Industrial air-handling systems.

The drive can provide controlled acceleration and speed regulation while reducing the need for mechanical speed-control methods.

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15.3 Mining Conveyors

Large conveyors frequently require high motor power and controlled acceleration.

The 435 A PowerFlex 755 configuration is appropriate for large conveyor systems when the motor’s actual current and duty requirements are within the applicable drive ratings.

Potential applications include:

• Ore conveyors.
• Coal conveyors.
• Aggregate conveyors.
• Bulk-material conveyors.
• Port handling systems.
• Quarry conveyors.

Controlled acceleration can help reduce mechanical shock to belts, couplings, gearboxes, and other mechanical components.

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15.4 Cement and Aggregate Equipment

Cement plants and aggregate-processing facilities contain numerous large motor loads.

The drive can be used in applications such as:

• Conveyors.
• Fans.
• Crushers.
• Material-handling equipment.
• Grinding-related auxiliary machinery.
• Large process fans.

For crusher and high-impact applications, the actual load profile and Heavy Duty requirements should be carefully evaluated before final drive selection.

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15.5 Compressors

Large compressors can require substantial motor power and controlled starting.

The drive can be applied to suitable compressor systems where variable-speed operation is appropriate.

Potential applications include:

• Industrial compressors.
• Process compressors.
• Air systems.
• Gas-handling equipment.
• Large refrigeration-related systems.

The final selection should account for compressor starting torque, operating range, motor current, and required overload characteristics.

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15.6 Mixers and Agitators

Large industrial mixers can require significant starting torque, especially when starting with material already inside the vessel.

The PowerFlex 755 platform can provide controlled acceleration and adjustable motor speed for applications such as:

• Chemical mixing.
• Water treatment.
• Mineral processing.
• Cement processing.
• Industrial batch systems.
• Large process mixers.

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15.7 Material Handling

The drive is also suitable for large material-handling machinery.

Applications can include:

• Large conveyors.
• Bulk-material systems.
• Hoist-related auxiliary machinery.
• Transfer systems.
• Loading systems.
• Production-line material transport.

The drive’s high current capability provides the capacity required for large motors while maintaining variable-speed control.

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16. Main Product Advantages

16.1 High Current Capacity

The 435 A catalog rating places this model in the high-power range of the PowerFlex 755 family.

It can support large industrial motors and machines that are beyond the practical range of smaller general-purpose drives.

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16.2 500 HP Light Duty Capability

The drive provides approximately 500 HP Light Duty capability.

This makes it suitable for high-power applications where the load does not require the more demanding overload profile associated with Heavy Duty operation.

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16.3 450 HP Normal Duty Capability

The approximately 450 HP Normal Duty rating is especially useful for large process equipment operating continuously under relatively stable load conditions.

This makes the drive well suited to:

• Pumps.
• Fans.
• Conveyors.
• Process machinery.
• Large material-handling systems.

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16.4 350 HP Heavy Duty Capability

The Heavy Duty capability is approximately 350 HP.

Although the Heavy Duty horsepower rating is lower than the Light Duty rating, Heavy Duty operation allows the drive to handle a more demanding overload profile.

This is important for machinery that requires substantial starting or acceleration torque.

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16.5 Industrial Type 12 / IP54 Enclosure

The Type 12 / IP54 construction provides a more complete industrial installation package than an exposed open-frame drive.

It can be integrated into suitable industrial electrical-room and MCC-style environments.

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16.6 800 mm MCC-Style Construction

The 800 mm deep cabinet arrangement provides space for high-power components and associated equipment.

This makes the drive suitable for centralized industrial motor-control installations.

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16.7 Embedded EtherNet/IP

Embedded EtherNet/IP provides a straightforward method for integrating the drive into Ethernet-based industrial automation architectures.

This can reduce the need for separate communication hardware in applications that use compatible control-system architectures.

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16.8 Air-Cooled Architecture

Air cooling provides a practical solution for large industrial installations.

The system does not require a liquid-cooling circuit, simplifying the overall thermal architecture.

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16.9 No-HIM Configuration

The N0 configuration is advantageous where the machine already has a centralized HMI or engineering interface.

It avoids requiring a local keypad at every drive.

This can be particularly useful in large multi-drive installations where operators interact with the process from a centralized control station.

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16.10 EMC Filter

The integrated filtering configuration is useful for industrial installations where electromagnetic compatibility is an important consideration.

The filter works as part of a complete EMC installation strategy involving grounding, cable routing, shielding, and cabinet design.

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17. Advantages for Industrial Automation

The PowerFlex 755 architecture is particularly useful when the drive forms part of a larger automated machine.

The 20G1AJE435AN0NNNNN can be connected to a control architecture in which a PLC or other controller determines the required motor speed and operating state.

For example, a production system could automatically increase conveyor speed when production demand rises and reduce speed when production demand falls.

Similarly, a pump system could adjust motor speed according to process requirements.

This type of automation is one of the primary reasons high-power variable-frequency drives are used instead of simple motor starters.

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18. Advantages for Maintenance

Although this model does not include a local HIM, its embedded communication capability makes it suitable for installations where drive information is managed centrally.

A maintenance technician can potentially access drive information through the control system or engineering interface.

This can allow maintenance personnel to review:

• Drive status.
• Fault information.
• Alarm conditions.
• Operating speed.
• Current.
• Process information.
• Communication status.
• Other available drive parameters.

In large facilities containing many drives, centralized diagnostics can be particularly valuable.

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19. Advantages for System Standardization

The PowerFlex 755 family includes a broad range of power ratings.

This allows engineering teams to standardize on a common drive family while using different current ratings for different machines.

For example, a plant could use related PowerFlex 755 configurations for:

• Medium pumps.
• Large pumps.
• Conveyor systems.
• Fans.
• Compressors.
• Mixers.
• Process machinery.

Standardization can simplify:

• Engineering.
• Operator training.
• Maintenance procedures.
• Spare-parts management.
• Troubleshooting.
• Commissioning.
• Documentation.

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20. Recommended Related Models

The following five models are closely related to the 20G1AJE435AN0NNNNN and are useful for applications requiring similar PowerFlex 755 architecture but different power ratings or configurations.

Model	Voltage	Current Class	Light Duty	Normal Duty	Heavy Duty	Frame	Cooling	Enclosure
20G1AJE295AN0NNNNN	600 VAC	295 A	350 HP	300 HP	250 HP	8	Air Cooled	IP54 / Type 12
20G1AJE355AN0NNNNN	600 VAC	355 A	400 HP	350 HP	300 HP	8	Air Cooled	IP54 / Type 12
20G1AJE395AN0NNNNN	600 VAC	395 A	450 HP	400 HP	350 HP	8	Air Cooled	IP54 / Type 12
20G1AJE435AN0NNNNN	600 VAC	435 A	500 HP	450 HP	350 HP	8	Air Cooled	IP54 / Type 12
20G1AJE460AN0NNNNN	600 VAC	460 A	500 HP	500 HP	400 HP	8	Air Cooled	IP54 / Type 12

These models belong to the same general high-power 600 V PowerFlex 755 family and provide a useful range for motor-selection and replacement planning.

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21. Detailed Comparison of Related Models

Model	Catalog Current	LD Rating	ND Rating	HD Rating	Frame	HIM	CM Configuration	Approx. Dimensions	Approx. Weight
20G1AJE295AN0NNNNN	295 A	350 HP	300 HP	250 HP	8	No HIM	CM Jumper Removed	Approx. 2100–2500 × 600 × 800 mm	600–650 kg
20G1AJE355AN0NNNNN	355 A	400 HP	350 HP	300 HP	8	No HIM	CM Jumper Removed	Approx. 2100–2500 × 600 × 800 mm	600–650 kg
20G1AJE395AN0NNNNN	395 A	450 HP	400 HP	350 HP	8	No HIM	CM Jumper Removed	Approx. 2100–2500 × 600 × 800 mm	600–650 kg
20G1AJE435AN0NNNNN	435 A	500 HP	450 HP	350 HP	8	No HIM	CM Jumper Removed	Approx. 2100–2500 × 600 × 800 mm	600–650 kg
20G1AJE460AN0NNNNN	460 A	500 HP	500 HP	400 HP	8	No HIM	CM Jumper Removed	Approx. 2100–2500 × 600 × 800 mm	600–650 kg

The exact physical dimensions can vary according to the complete packaged configuration. The table therefore provides engineering-level planning values rather than guaranteed shipping dimensions.

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22. Five Popular Allen-Bradley Models from Related Drive Families

The following five models are useful related Allen-Bradley drive products covering smaller and different PowerFlex applications.

Model	Series	Voltage Class	Current / Rating	Typical Application	General Configuration
25B-D030N114	PowerFlex 525	480 VAC class	30 A class	General industrial machinery	Compact AC drive
25C-D030N114	PowerFlex 527	480 VAC class	30 A class	Machine automation	Compact Ethernet-based AC drive
20G1AGC260JN0NNNNN	PowerFlex 755	480 VAC class	260 A class	Large industrial motors	Frame 8
20G1AGC302JA0NNNNN	PowerFlex 755	480 VAC class	302 A class	High-power process equipment	Large-frame AC drive
20G1AGE053JA0NNNNN	PowerFlex 755	480 VAC class	53 A class	Medium/high-power industrial machinery	PowerFlex 755 AC drive

These models should not be treated as direct drop-in replacements for the 20G1AJE435AN0NNNNN.

They represent different voltage levels, current capacities, physical configurations, and application ranges.

They are useful when a project requires a different motor size or a different drive architecture.

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23. Application Selection Table

Application	Suitability	Reason
Large Water Pump	Excellent	High-power variable-speed control
Large Cooling Fan	Excellent	Large motor capacity and speed control
Industrial Blower	Excellent	High-power continuous operation
Mining Conveyor	Excellent	High-current motor control
Cement Conveyor	Excellent	Large industrial motor capacity
Material Handling	Excellent	Controlled acceleration and speed
Large Compressor	Very Good	High-power AC motor control
Industrial Mixer	Excellent	Adjustable speed and controlled acceleration
Process Machinery	Excellent	Flexible high-power drive platform
Large Fan System	Excellent	Variable-speed airflow control
Small Pump	Not Recommended	Excessive drive capacity
Small Fan	Not Recommended	Smaller drive would be more economical
Small Machine	Not Recommended	Physically oversized for the application

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24. Installation Requirements

Because the 20G1AJE435AN0NNNNN is a large Frame 8 drive, installation planning should begin before the equipment is delivered.

The following items should be evaluated:

Electrical Installation

• Incoming voltage.
• Phase configuration.
• Available short-circuit current.
• Protective-device coordination.
• Grounding arrangement.
• Motor voltage.
• Motor full-load current.
• Motor cable size.
• Motor cable length.
• EMC requirements.

Mechanical Installation

• Floor loading.
• Cabinet dimensions.
• Door clearance.
• Maintenance access.
• Cable-entry space.
• Lifting points.
• Forklift access.
• Crane capacity.
• Equipment-room access.

Thermal Installation

• Ambient temperature.
• Airflow.
• Ventilation.
• Cooling-fan operation.
• Heat dissipation.
• Cabinet temperature.
• Dust conditions.

Automation Installation

• PLC communication.
• EtherNet/IP architecture.
• HMI requirements.
• Network topology.
• Drive addressing.
• Control strategy.
• Remote diagnostics.

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25. Maintenance Recommendations

Large air-cooled drives require a proper preventive-maintenance program.

The cooling system should be inspected periodically.

Dust accumulation can restrict airflow and increase operating temperature.

Maintenance personnel should periodically inspect:

• Cooling fans.
• Airflow passages.
• Cabinet ventilation.
• Power connections.
• Grounding connections.
• Motor cable connections.
• Communication connections.
• Drive fault history.
• Alarm conditions.
• Cabinet cleanliness.
• Abnormal temperature conditions.
• Signs of overheating.
• Mechanical vibration.

The maintenance interval should be adjusted according to the installation environment.

A clean electrical room generally requires less frequent cleaning than a mining, cement, aggregate, or other dusty industrial environment.

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26. Selection of Light Duty, Normal Duty, or Heavy Duty

The 20G1AJE435AN0NNNNN provides different motor ratings according to duty classification.

Light Duty

The Light Duty rating is approximately 500 HP.

This rating is appropriate for applications where the motor operates under relatively moderate loading conditions and does not require the same overload capability as a Heavy Duty machine.

Typical examples can include certain large fans and pumps.

Normal Duty

The Normal Duty rating is approximately 450 HP.

This is an important rating for many general industrial applications.

Typical examples include:

• Large pumps.
• Large fans.
• Conveyors.
• Process equipment.
• Material-handling systems.

Heavy Duty

The Heavy Duty rating is approximately 350 HP.

This rating is intended for applications requiring more demanding overload performance.

Examples can include machines with:

• High starting torque.
• High acceleration torque.
• Frequent acceleration.
• High mechanical inertia.
• Variable and demanding loads.

The correct duty rating should always be selected according to the actual application.

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27. Product Advantages in Large Industrial Systems

The 20G1AJE435AN0NNNNN has several characteristics that make it particularly suitable for centralized high-power motor-control systems.

First, its 435 A current class allows it to control substantially larger motors than compact general-purpose drives.

Second, its 600 VAC three-phase architecture is appropriate for high-power industrial motor systems.

Third, the Frame 8 construction provides the physical architecture required for high-current equipment.

Fourth, the Type 12 / IP54 enclosure provides an industrial packaged construction.

Fifth, the embedded EtherNet/IP capability supports integration into modern industrial automation systems.

Sixth, the N0 no-HIM configuration is convenient where local drive displays are unnecessary because control and monitoring are centralized.

Seventh, the EMC filter and CM jumper removed configuration provide a defined electrical configuration for applications designed around those characteristics.

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28. Recommended Replacement Model

For replacement planning, the direct replacement identified for 20G1AJE435AN0NNNNN is:

20G1AJE435JN0NNNNN

The replacement maintains the same general 435 A / 600 V / Frame 8 / Type 12 packaged-drive concept while changing the CM jumper configuration.

For that reason, the replacement should not be treated as a completely configuration-independent substitution.

Before replacement, the original system’s:

• Grounding arrangement.
• Common-mode configuration.
• Motor characteristics.
• Input configuration.
• Communication system.
• Cabinet arrangement.
• Protection equipment.

should be checked.

The original model is listed as discontinued, with June 30, 2024 identified as the discontinuation date.

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29. Product Comparison: AN0 vs Related N0 and N4 Configurations

Model	Current	Voltage	HIM	CM Jumper	Enclosure	Main Difference
20G1AJE395AN0NNNNN	395 A	600 VAC	No HIM	Removed	IP54 / Type 12	Lower current
20G1AJE435AN0NNNNN	435 A	600 VAC	No HIM	Removed	IP54 / Type 12	Higher current
20G1AJE460AN0NNNNN	460 A	600 VAC	No HIM	Removed	IP54 / Type 12	Higher current
20G1AJE435AN4NNNNN	435 A	600 VAC	Enhanced LCD Full Numeric	Removed	IP54 / Type 12	Local HIM
20G1AJE435JN0NNNNN	435 A	600 VAC	No HIM	Installed	IP54 / Type 12	Replacement configuration

This comparison is useful when selecting between otherwise similar large-frame PowerFlex 755 configurations.

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30. Engineering Advantages of the 435 A Configuration

The 435 A configuration occupies an important position within the 600 V PowerFlex 755 range.

It provides more current capability than the 395 A model while remaining below the 460 A model.

This makes it useful when the motor’s full-load current is too high for the 395 A configuration but does not justify moving to the next larger current class.

This type of incremental sizing can help engineers select a drive that is appropriately matched to the motor rather than automatically choosing a substantially oversized unit.

For industrial projects, proper drive sizing can influence:

• Equipment cost.
• Cabinet size.
• Thermal requirements.
• Spare-parts strategy.
• Motor performance.
• Overload capability.
• Project standardization.

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31. Suitable Industries

The 20G1AJE435AN0NNNNN can be considered for a broad range of heavy industrial sectors.

Industry	Typical Equipment
Mining	Conveyors, fans, pumps, material handling
Cement	Conveyors, fans, process equipment
Water Treatment	Large pumps and blowers
Steel	Fans, pumps, process machinery
Chemical Processing	Pumps, mixers, compressors
Pulp and Paper	Fans, pumps, process drives
Manufacturing	Large production machinery
Material Handling	Conveyors and transfer systems
Utilities	Pumps and auxiliary machinery
Industrial HVAC	Large fans and pumps
Aggregate Processing	Conveyors, fans, crushers
General Process Industry	Large AC motor loads

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32. Overall Product Evaluation

The Allen-Bradley 20G1AJE435AN0NNNNN is a high-power, large-frame PowerFlex 755 AC drive intended for demanding industrial applications.

Its principal characteristics are:

• 600 VAC three-phase input
• 435 A catalog current
• 500 HP Light Duty
• 450 HP Normal Duty
• 350 HP Heavy Duty
• Frame 8
• Air-cooled construction
• Type 12 / IP54 enclosure
• 800 mm deep MCC-style packaging
• EMC filter
• CM jumper removed
• AC input with precharge
• No DC terminals
• Embedded EtherNet/IP
• Blank / no HIM
• No standard dynamic braking
• Approx. 2100–2500 × 600 × 800 mm
• Approx. 600–650 kg

This combination makes the model particularly appropriate for large industrial motor systems where high power, robust packaged construction, and industrial automation integration are required.

The absence of a local HIM makes it particularly attractive for centralized control architectures in which operators and maintenance personnel use a remote HMI, PLC, supervisory system, or engineering workstation.

The high current rating makes the model suitable for large pumps, fans, conveyors, compressors, mixers, process machinery, and other heavy industrial equipment.

For final selection, the most important factors remain the actual motor full-load current, duty classification, overload requirements, mechanical load characteristics, environmental conditions, electrical-system configuration, and communication requirements.

For replacement work, special attention should also be paid to the CM jumper configuration, because the AN0 and JN0 versions are not identical in this respect.

In a properly engineered installation, the 20G1AJE435AN0NNNNN provides a powerful combination of large-motor capacity, industrial enclosure construction, variable-speed operation, Ethernet-based automation integration, and PowerFlex 755 platform compatibility.