Company Information
E-mail		[email protected]
Mobile		+8615980777398
Whatsapp		+8615980777398
WeChat		15980777398

Allen-Bradley 20G1AJE460JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1AJE460JN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications.

It is a 600 VAC, three-phase, 460 A, Frame 8 air-cooled AC drive configured for demanding industrial installations. The drive is supplied in an 800 mm deep MCC-style, IP54 / NEMA Type 12 configuration and includes embedded EtherNet/IP communication.

The drive is rated for up to 500 HP Light Duty, 500 HP Normal Duty, and 400 HP Heavy Duty, making it suitable for a broad range of large-motor applications.

The JN0 configuration includes standard protection, forced-air cooling, AC input with precharge, no external DC terminals, integrated filtering, CM jumper installed in the preferred configuration, no dynamic braking, and a blank/no-HIM configuration.

This particular catalog number is also important from a replacement perspective. It is the direct replacement for the older 20G1AJE460AN0NNNNN configuration, making it highly relevant to maintenance, retrofit, modernization, and spare-parts planning for existing PowerFlex 755 installations.

---

2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	Industrial AC Variable Frequency Drive
Catalog Number	20G1AJE460JN0NNNNN
Drive Type	Air-Cooled AC Drive
Voltage Class	600 VAC
Input Phase	Three-Phase
Current Class	460 A
Frame	Frame 8
Light-Duty Rating	500 HP
Normal-Duty Rating	500 HP
Heavy-Duty Rating	400 HP
Enclosure	IP54 / NEMA Type 12
Construction	800 mm Deep MCC Style
Cooling	Forced Air
Communication	Embedded EtherNet/IP
Input Configuration	AC Input with Precharge
External DC Terminals	None
Filtering	Filtered
CM Capacitor Configuration	CM Jumper Installed
Dynamic Braking	None
HIM	Blank / No HIM
Product Status	Active
Related Previous Model	20G1AJE460AN0NNNNN
Product Application	High-Power Industrial Motor Control

The PowerFlex 755 series is designed for large and demanding industrial applications where adjustable-speed motor control, network integration, diagnostics, and flexible application configuration are required.

---

3. Detailed Technical Parameters

Parameter	Specification
Catalog Number	20G1AJE460JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Voltage Class	600 VAC
Input Voltage	600 VAC
Input Phase	3 Phase
Output Current Class	460 A
Light-Duty Rating	500 HP
Normal-Duty Rating	500 HP
Heavy-Duty Rating	400 HP
Light-Duty Continuous Current	510 A
Light-Duty 1-Minute Current	561 A
Normal-Duty Continuous Current	460 A
Normal-Duty 1-Minute Current	506 A
Normal-Duty 3-Second Current	690 A
Heavy-Duty Continuous Current	395 A
Heavy-Duty 1-Minute Current	593 A
Heavy-Duty 3-Second Current	711 A
Frame Size	Frame 8
Cooling Method	Forced Air
Enclosure	NEMA Type 12
IP Rating	IP54
Construction	MCC Style
Cabinet Depth	800 mm
Overall Width	Configuration-dependent
Overall Height	Configuration-dependent
Reference Drive Weight	Approximately 79.38 kg
Weight	Approximately 79.38 kg
Input Type	AC Input with Precharge
DC Terminals	None
EMC Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
HIM Configuration	Blank / No HIM
Protection	Standard Protection
Duty Classes	Light Duty / Normal Duty / Heavy Duty
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Status	Active

The drive’s 460 A designation should be understood together with its duty-class ratings.

For normal-duty operation, the continuous current rating is 460 A. Under light-duty operation, the continuous current capability is higher. Under heavy-duty operation, the continuous current rating is lower because more overload margin is available for demanding loads.

---

4. Duty Rating Details

The duty rating is one of the most important specifications when selecting this drive.

Duty Classification	Continuous Current	1-Minute Overload	3-Second Overload	Horsepower
Light Duty	510 A	561 A	—	500 HP
Normal Duty	460 A	506 A	690 A	500 HP
Heavy Duty	395 A	593 A	711 A	400 HP

Light Duty

The Light Duty rating is intended primarily for applications with relatively stable loading and lower overload requirements.

The drive provides 510 A continuous output capability in this classification and supports a 500 HP motor rating.

Typical examples include large centrifugal pumps, fans, and blowers where the load generally follows a variable-torque characteristic.

Normal Duty

Normal Duty provides 460 A continuous output capability and a 500 HP rating.

This is an important operating class for many industrial process applications.

Typical applications include process pumps, compressors, conveyors, and machinery where the load varies but does not require the maximum heavy-duty overload capability.

Heavy Duty

Heavy Duty provides a lower continuous current rating of 395 A, but significantly greater overload capability.

This classification is intended for applications where acceleration torque, mechanical loading, or short-duration overload requirements are more demanding.

Typical examples include crushers, heavy conveyors, mixers, and other high-torque machinery.

---

5. Electrical Configuration

The 20G1AJE460JN0NNNNN is designed for 600 VAC three-phase power.

This voltage class makes it suitable for large industrial motor systems where higher motor voltage is commonly used for high-power equipment.

At a given power level, a higher motor voltage can reduce the current required by the motor compared with an equivalent lower-voltage system.

This is particularly useful in large industrial facilities where motor cable sizes, switchgear capacity, bus structures, and power-distribution architecture must be considered carefully.

The drive uses an AC input with precharge and does not provide external DC terminals in this configuration.

---

6. DC Bus and Precharge Arrangement

The drive includes an internal DC-link system.

The AC input with precharge arrangement controls the initial charging of the DC-link capacitors when the drive is energized.

This is especially important for a high-power drive because the DC-link capacitors represent a substantial electrical load during initial energization.

The precharge system helps manage this initial charging process.

The JN0 catalog configuration does not provide external DC terminals.

Therefore, it should not be treated as an external common-DC-bus drive configuration unless the complete system architecture specifically provides the appropriate equipment and configuration.

---

7. Frame 8 Construction

The drive uses Frame 8 construction.

Frame 8 is designed for high-power motor applications and requires significantly more installation space and handling consideration than smaller PowerFlex frames.

Important mechanical considerations include:

• Cabinet depth
• Power cable routing
• Airflow
• Service access
• Electrical clearances
• Grounding
• Cooling
• Lifting and handling
• Cabinet ventilation
• Maintenance access

The catalog configuration specifies an 800 mm deep MCC-style enclosure.

---

8. Dimensions and Weight

Mechanical planning is especially important for a high-power Frame 8 drive.

Mechanical Parameter	Specification
Catalog Number	20G1AJE460JN0NNNNN
Frame	Frame 8
Enclosure	IP54 / NEMA Type 12
Construction	MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Reference Drive Weight	Approximately 79.38 kg
Weight in kg	Approximately 79.38 kg
Cooling	Forced Air
Installation	Industrial cabinet / MCC-style installation
Service Clearance	Required
Complete Assembly Weight	May differ from drive-unit reference weight

The 800 mm figure refers to the stated MCC-style depth.

The overall height and width should be taken from the exact mechanical drawing for the installed configuration rather than estimated from the catalog number.

The approximately 79.38 kg value should likewise be treated as a reference drive-unit weight. The complete packaged assembly, cabinet structure, accessories, wiring, and other equipment can result in a substantially different total installed or shipping weight.

For lifting, transport, cabinet structural calculations, and shipping documents, the final assembled configuration should be used.

---

9. IP54 / NEMA Type 12 Enclosure

The 20G1AJE460JN0NNNNN is configured with IP54 / NEMA Type 12 protection.

This enclosure provides protection suitable for many indoor industrial environments.

It helps protect the drive from normal industrial exposure to:

• Dust
• Dirt
• Airborne contaminants
• Moisture under normal industrial conditions
• Production-floor contamination

The enclosure should not be considered equivalent to a fully waterproof enclosure.

Outdoor installations, direct water exposure, severe washdown, corrosive chemicals, or unusual atmospheric conditions require additional environmental evaluation.

---

10. Forced-Air Cooling

The drive uses forced-air cooling.

A high-power 460 A drive generates considerable heat during operation.

The cooling system is therefore an important part of overall drive reliability.

The installation should provide suitable airflow and should prevent the hot exhaust air from being drawn back into the cooling intake.

Routine maintenance should include inspection of:

• Cooling fans
• Air passages
• Ventilation openings
• Dust accumulation
• Abnormal fan noise
• Signs of overheating
• Cabinet temperature
• Airflow conditions

A high-power drive installed in a dusty environment requires particular attention to cooling-system maintenance.

---

11. Embedded EtherNet/IP

The 20G1AJE460JN0NNNNN includes embedded EtherNet/IP.

This is one of the most useful features for integration into modern industrial automation systems.

The drive can communicate operating information with the control system, allowing functions such as:

• Start and stop control
• Speed reference
• Drive status
• Fault monitoring
• Alarm monitoring
• Diagnostic information
• Parameter access
• Process data exchange
• Operating-value monitoring

This makes it possible to integrate a large motor drive into a plant-wide automation architecture.

A PLC or other automation controller can therefore supervise the drive while operators and maintenance personnel receive drive status through the control system.

---

12. CM Jumper Installed

The JN0 configuration specifies the CM jumper installed, identified as the preferred configuration.

This is an important difference compared with the earlier AN0 configuration.

The common-mode capacitor arrangement is related to the grounding architecture of the drive and should be considered in conjunction with the site’s electrical distribution system.

The configuration should not be changed casually.

Before commissioning or replacing a drive, the electrical grounding arrangement should be reviewed to ensure that the installed configuration is appropriate for the system.

---

13. Filtering

The 20G1AJE460JN0NNNNN is supplied in a filtered configuration.

Filtering is useful for managing conducted electrical noise generated by variable-frequency-drive switching.

In practical installations, the final EMC performance also depends on:

• Motor cable type
• Motor cable length
• Grounding
• Shielding
• Cable routing
• Cabinet bonding
• Control wiring
• Motor grounding
• Installation layout

The drive’s internal filtering is therefore an important part of the EMC design, but correct installation remains essential.

---

14. Dynamic Braking

The catalog configuration specifies no dynamic braking.

This should be considered carefully when applying the drive to high-inertia machinery.

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

Applications involving significant regenerative energy may therefore require an appropriate braking or regenerative strategy.

Applications requiring particular attention include:

• Large conveyors
• Hoists
• Cranes
• Centrifuges
• Winders
• Unwinders
• Large rotating machinery
• High-speed fans
• High-inertia process equipment

The absence of dynamic braking in the catalog configuration does not automatically prevent use in these applications, but the deceleration and regenerative-energy requirements must be evaluated during system design.

---

15. Blank / No HIM Configuration

The JN0 configuration is specified as Blank / No HIM.

This means a front-mounted Human Interface Module is not included as part of the standard catalog configuration.

For a fully automated industrial system, this can be useful because drive operation can be managed through the automation network and external controls.

For commissioning and maintenance, a suitable interface can be added or connected when necessary.

The absence of a standard HIM also differentiates this model from related configurations using an enhanced LCD/full-numeric HIM.

---

16. Main Product Applications

Large Pumps

The 20G1AJE460JN0NNNNN is well suited to large industrial pumps.

Variable-speed control allows pump output to be adjusted according to actual process demand.

Typical applications include:

• Water treatment
• Industrial water circulation
• Cooling-water systems
• Process pumping
• Wastewater systems
• Mining slurry systems
• Large industrial circulation systems

The drive can provide controlled acceleration and variable-speed operation while communicating operating information to the plant automation system.

---

17. Large Fans and Blowers

Large fans and blowers are common variable-speed applications.

The drive can adjust motor speed according to airflow requirements.

Typical applications include:

• Furnace fans
• Combustion-air fans
• Industrial exhaust systems
• Dust collection
• Cooling systems
• Process ventilation
• Large blowers

Variable-speed operation can also reduce mechanical stress associated with frequent across-the-line starting.

---

18. Compressors

The high-current capability makes the drive suitable for large compressor applications where adjustable-speed operation is required.

Potential applications include:

• Industrial air compressors
• Process compressors
• Gas-handling systems
• Large refrigeration-related equipment
• Production-plant compressor systems

Compressor applications should be evaluated according to starting requirements, motor current, acceleration profile, and process load.

---

19. Conveyor Systems

Large conveyors often require considerable motor power and controlled acceleration.

The drive can help manage the acceleration and deceleration of the conveyor.

This can reduce mechanical shock on:

• Belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Chains
• Conveyor structures

For long conveyors, networked drive control can also support coordinated operation and centralized monitoring.

---

20. Mining Applications

The 460 A high-power configuration is well suited to many mining-related motor applications.

Potential applications include:

• Large conveyors
• Crushers
• Feeders
• Pumps
• Ventilation systems
• Material-handling equipment
• Processing equipment

Mining installations can have severe environmental conditions, so enclosure, cooling, grounding, and maintenance requirements should always be considered as part of the overall system design.

---

21. Cement and Aggregate Equipment

Cement and aggregate plants frequently operate large motors continuously.

The drive can be applied to:

• Crushers
• Conveyors
• Fans
• Feeders
• Pumps
• Mixers
• Material-processing equipment

The ability to control large motors through a networked automation system can also simplify plant-level monitoring.

---

22. Material Handling

Large material-handling systems are another strong application area.

The drive can be used for:

• Bulk conveyors
• Transfer systems
• Feeders
• Production-line conveyors
• Mining conveyors
• Material transport equipment

Controlled acceleration and deceleration can reduce mechanical stress and provide smoother material movement.

---

23. Mixers and Agitators

Large mixers and agitators may require significant starting torque.

The PowerFlex 755 platform can provide adjustable-speed motor control for these applications.

Typical applications include:

• Chemical mixing
• Industrial blending
• Slurry mixing
• Large processing tanks
• Production mixers

For applications with high starting torque or frequent overload conditions, the Heavy Duty rating should be checked against the motor’s actual full-load current.

---

24. Process Machinery

The drive is suitable for high-power process machinery requiring adjustable motor speed.

Examples include:

• Large processing machines
• Pumps
• Fans
• Blowers
• Mixers
• Material-processing systems
• Continuous-production equipment

The embedded EtherNet/IP capability is particularly useful when the machine must exchange operating information with a centralized control system.

---

25. Product Advantages

High Power Capability

The 20G1AJE460JN0NNNNN is designed for large industrial motors.

Its 500 HP light-duty and normal-duty ratings place it in the high-power class.

This makes it suitable for equipment that would be beyond the practical range of smaller general-purpose drives.

---

460 A Current Class

The 460 A normal-duty current class provides substantial output capability.

This makes the drive suitable for large motors while still providing a useful range of overload capacity.

---

500 HP Normal-Duty Rating

A 500 HP normal-duty rating makes the drive particularly useful for large industrial processes that require continuous operation at substantial power.

---

400 HP Heavy-Duty Rating

The 400 HP heavy-duty rating provides useful overload capability for applications where torque demand is more severe.

This makes the drive appropriate for equipment such as heavy conveyors, crushers, and mixers when the actual motor current is within the drive’s heavy-duty rating.

---

600 VAC Industrial Design

The 600 VAC class is well suited to large industrial motor systems.

It allows high-power motors to operate at a higher voltage level, which can be beneficial for electrical distribution and motor-cable design.

---

PowerFlex 755 Architecture

The PowerFlex 755 platform is intended for advanced industrial applications.

It provides a much broader control and integration capability than a simple standalone VFD.

---

Embedded EtherNet/IP

Integrated EtherNet/IP simplifies connection to a networked control architecture.

This can reduce the need for separate communication hardware for standard network integration.

---

IP54 / NEMA Type 12

The enclosure provides a practical level of environmental protection for many indoor industrial installations.

---

Forced-Air Cooling

Forced-air cooling provides the thermal management required by the high-power drive.

---

Integrated Filtering

The filtered configuration supports EMC-conscious industrial installations.

---

Preferred CM Jumper Configuration

The JN0 configuration uses the preferred CM jumper-installed arrangement.

This is one of the key configuration characteristics distinguishing it from the earlier AN0 model.

---

26. Recommended Five Same-Series / Related Models

The following models are useful comparisons within the PowerFlex 755 family and the same general 600 VAC high-power range.

Model	Voltage	Current	Light Duty	Normal Duty	Heavy Duty	Frame	Enclosure
20G1AJE355JN0NNNNN	600 VAC, 3PH	355 A	400 HP	350 HP	300 HP	8	IP54 / Type 12
20G1AJE395JN0NNNNN	600 VAC, 3PH	395 A	450 HP	400 HP	350 HP	8	IP54 / Type 12
20G1AJE435JN0NNNNN	600 VAC, 3PH	435 A	500 HP	450 HP	350 HP	8	IP54 / Type 12
20G1AJE460JN4NNNNN	600 VAC, 3PH	460 A	500 HP	500 HP	400 HP	8	IP54 / Type 12
20G1AJE510JN0NNNNN	600 VAC, 3PH	510 A	550 HP	500 HP	450 HP	8	IP54 / Type 12

These models are useful when the engineer needs to select a drive around the 460 A power class.

The most closely related model is 20G1AJE460JN4NNNNN, which uses the same basic high-power electrical class but adds a different HIM configuration.

---

27. Same-Series Model Comparison

Model	Current	LD Rating	ND Rating	HD Rating	Main Difference
20G1AJE355JN0NNNNN	355 A	400 HP	350 HP	300 HP	Lower power
20G1AJE395JN0NNNNN	395 A	450 HP	400 HP	350 HP	Lower current class
20G1AJE435JN0NNNNN	435 A	500 HP	450 HP	350 HP	Slightly lower current
20G1AJE460JN0NNNNN	460 A	500 HP	500 HP	400 HP	Requested model
20G1AJE510JN0NNNNN	510 A	550 HP	500 HP	450 HP	Higher current class

The 460 A model sits near the upper end of this particular 600 VAC Frame 8 group.

The 510 A model provides additional capacity when the motor current or application load exceeds the practical range of the 460 A model.

---

28. Alternative JN4 Configuration

A particularly useful comparison is:

20G1AJE460JN4NNNNN

The basic power characteristics are closely related:

Parameter	JN0	JN4
Catalog Number	20G1AJE460JN0NNNNN	20G1AJE460JN4NNNNN
Voltage	600 VAC	600 VAC
Phase	3 Phase	3 Phase
Current	460 A	460 A
Light Duty	500 HP	500 HP
Normal Duty	500 HP	500 HP
Heavy Duty	400 HP	400 HP
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	Installed
HIM	Blank / No HIM	Enhanced LCD / Full Numeric HIM

The main practical distinction is the operator-interface configuration.

The JN0 version is a blank/no-HIM configuration, while the JN4 version provides an enhanced local interface.

---

29. Five Same-Brand Popular Models

The following models provide useful reference points within the broader Allen-Bradley drive portfolio.

Model	Series	Voltage Class	Current / Power Class	Typical Application
25B-D030N114	PowerFlex 525	480 VAC class	30 A class	General machine control
25C-D030N114	PowerFlex 527	480 VAC class	30 A class	Networked machine automation
20G1AGC260JN0NNNNN	PowerFlex 755	480 VAC class	260 A class	Large industrial motor control
20G1AGC302JA0NNNNN	PowerFlex 755	480 VAC class	302 A class	High-power industrial equipment
20G1AGE053JA0NNNNN	PowerFlex 755	690 VAC class	53 A class	Higher-voltage industrial motor applications

These models cover different application ranges and should not be considered direct replacements for the 20G1AJE460JN0NNNNN.

For a direct replacement or close electrical match, the 600 VAC PowerFlex 755 Frame 8 family is the appropriate area to consider first.

---

30. Application Selection Table

Application	Typical Duty	Suitability	Main Requirement
Large centrifugal pump	Light / Normal	Excellent	Variable-speed control
Large fan	Light	Excellent	Variable-torque operation
Industrial blower	Light / Normal	Excellent	Airflow regulation
Process pump	Normal	Excellent	Continuous speed control
Compressor	Normal / Heavy	Excellent	High motor power
Conveyor	Normal / Heavy	Excellent	Controlled acceleration
Crusher	Heavy	Excellent	High torque
Mining equipment	Normal / Heavy	Excellent	High-power motor control
Cement machinery	Normal / Heavy	Excellent	Continuous industrial operation
Large mixer	Heavy	Excellent	Starting torque
Material handling	Normal / Heavy	Excellent	Speed and torque control
Large process machinery	Normal / Heavy	Excellent	Networked motor control
Hoist	Heavy	Application-dependent	Torque and braking analysis
Centrifuge	Heavy	Application-dependent	High inertia and braking analysis

---

31. Installation Considerations

The 20G1AJE460JN0NNNNN should be installed as part of a properly engineered industrial electrical system.

Important considerations include:

• Incoming voltage
• Motor voltage
• Motor full-load current
• Upstream protection
• Grounding
• Motor cable selection
• Motor cable length
• Cable routing
• Cabinet ventilation
• Cooling airflow
• Network wiring
• EMC installation
• CM jumper configuration
• Acceleration settings
• Deceleration settings
• Motor control mode
• Overload settings
• Environmental conditions

The 800 mm cabinet depth should be incorporated into the mechanical design.

The actual height and width should be obtained from the applicable mechanical drawing for the final installation configuration.

---

32. Motor Selection

Motor horsepower alone should not be used to select the drive.

The following motor parameters should be checked:

Motor Parameter	Why It Matters
Rated Voltage	Must match the drive system
Full-Load Current	Primary drive-current selection factor
Horsepower	Defines general power requirement
Frequency	Determines operating range
Speed	Important for process requirements
Torque	Determines mechanical loading
Starting Torque	Important for acceleration
Service Factor	Affects application margin
Load Inertia	Affects acceleration and deceleration
Duty Cycle	Determines thermal loading
Motor Cable Length	Can affect drive installation
Feedback Requirement	Determines control architecture

For a heavy-duty application, motor current should be compared directly against the heavy-duty drive rating.

---

33. Maintenance

A high-power Frame 8 drive requires systematic maintenance.

Important maintenance items include:

• Cooling fans
• Air passages
• Electrical connections
• Power terminals
• Grounding connections
• Network cables
• Cabinet ventilation
• Signs of overheating
• Dust accumulation
• Abnormal vibration
• Abnormal fan noise
• Component condition
• Parameter configuration

Cooling-system maintenance is especially important.

A blocked or contaminated airflow path can increase internal temperature and reduce the expected operating life of power components.

---

34. Network Integration

The embedded EtherNet/IP interface makes the drive suitable for networked automation architectures.

A typical control structure may include:

PLC → EtherNet/IP Network → PowerFlex 755 → Large AC Motor

The automation controller can issue:

• Run commands
• Stop commands
• Speed references
• Direction commands
• Reset commands

The drive can return:

• Running status
• Actual speed
• Current
• Fault information
• Alarm information
• Operating status

This arrangement can reduce the need for extensive hardwired control signals.

---

35. Advantages for Plant Automation

The drive provides several advantages when used as part of a centralized automation system.

Centralized Control

The motor can be controlled from the main automation system.

Remote Diagnostics

Drive status and fault information can be made available through the network.

Easier Process Integration

Speed commands can be coordinated with pumps, valves, sensors, conveyors, and other equipment.

Reduced Hardwiring

Network communications can reduce the amount of traditional point-to-point control wiring.

Maintenance Visibility

Operating information can be made available to maintenance personnel.

---

36. Advantages for Large Motors

Large motors require careful control during starting and stopping.

The 20G1AJE460JN0NNNNN can provide controlled acceleration rather than simply applying full line voltage directly to the motor.

This can reduce mechanical stress on:

• Couplings
• Shafts
• Gearboxes
• Belts
• Bearings
• Conveyor structures
• Pump systems

Controlled speed operation can also allow the motor to match the process requirement more closely.

---

37. Retrofit Advantages

The JN0 model has particular value for existing systems because it is the identified direct replacement for the previous 20G1AJE460AN0NNNNN catalog configuration.

This can simplify modernization planning.

Instead of redesigning an entire motor-control system around a different drive family, engineers can remain within the PowerFlex 755 architecture.

Potential retrofit benefits include:

• Similar application class
• Same 600 VAC voltage class
• Same 460 A current class
• Same Frame 8 architecture
• Similar enclosure arrangement
• Embedded EtherNet/IP
• Comparable high-power motor capability

Even when the replacement is cataloged as a direct replacement, the complete installation should still be reviewed for electrical, mechanical, firmware, parameter, and network compatibility.

---

38. Difference Between 20G1AJE460AN0NNNNN and 20G1AJE460JN0NNNNN

This comparison is particularly important for maintenance engineers.

Parameter	Previous AN0	Current JN0
Catalog Number	20G1AJE460AN0NNNNN	20G1AJE460JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	600 VAC	600 VAC
Current	460 A	460 A
Light Duty	500 HP	500 HP
Normal Duty	500 HP	500 HP
Heavy Duty	400 HP	400 HP
Frame	8	8
Enclosure	IP54 / Type 12	IP54 / Type 12
Cooling	Forced Air	Forced Air
Input	AC with Precharge	AC with Precharge
DC Terminals	None	None
Filtering	Filtered	Filtered
CM Jumper	Removed	Installed
HIM	Blank / No HIM	Blank / No HIM
Lifecycle	Discontinued	Active
Replacement Relationship	Previous configuration	Direct replacement

The most important configuration change is the CM jumper arrangement.

The JN0 version specifies the CM jumper installed as the preferred configuration.

Therefore, replacement work should not simply involve physically installing the new unit without reviewing the grounding and common-mode configuration.

---

39. Overall Product Advantages

Advantage	Description
High Current	460 A class
High Power	Up to 500 HP LD / ND
Heavy-Duty Capability	400 HP HD
600 VAC	Suitable for large industrial motor systems
Frame 8	High-power architecture
IP54	Industrial environmental protection
Type 12	Suitable for many indoor industrial environments
800 mm Deep MCC Style	Large industrial cabinet integration
Forced Air	High-power thermal management
Embedded EtherNet/IP	Networked automation
Filtered	EMC-conscious configuration
Precharge	Controlled DC-link charging
CM Jumper Installed	Preferred configuration
No External DC Terminals	Defined AC-input configuration
No Dynamic Braking	Simple standard configuration
No HIM	Suitable for network-centered automation
PowerFlex 755	Advanced industrial drive platform
Direct Replacement	Useful for replacement of AN0 configuration

---

40. Final Technical Summary

The Allen-Bradley 20G1AJE460JN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications.

Its principal characteristics include:

• 600 VAC
• Three-phase
• 460 A current class
• 500 HP Light Duty
• 500 HP Normal Duty
• 400 HP Heavy Duty
• Frame 8
• Forced-air cooling
• IP54 / NEMA Type 12
• 800 mm deep MCC-style construction
• Embedded EtherNet/IP
• AC input with precharge
• No external DC terminals
• Filtered configuration
• CM jumper installed
• No dynamic braking
• Blank / no HIM

This combination makes the drive particularly appropriate for large pumps, fans, blowers, compressors, conveyors, crushers, mining equipment, cement machinery, material-handling systems, mixers, and other high-power industrial equipment.

The drive is especially useful where a large motor must be integrated into a modern automation system.

The embedded EtherNet/IP capability allows the drive to exchange commands, status, diagnostics, and operating information with the control system.

The Frame 8 / 800 mm MCC-style construction provides a suitable physical architecture for large industrial installations, while the IP54 / NEMA Type 12 enclosure provides additional environmental protection for appropriate indoor industrial environments.

The 460 A current class provides a substantial amount of motor-control capacity.

The drive also provides three duty classifications, allowing engineers to evaluate the application according to continuous current, overload requirements, and mechanical loading.

For variable-torque applications such as large pumps and fans, the Light Duty rating can be particularly useful.

For general industrial processes, the Normal Duty rating provides the 460 A continuous operating class.

For more demanding applications involving high torque and overload conditions, the Heavy Duty rating should be evaluated carefully against the motor’s actual current and mechanical requirements.

One of the most important characteristics of this model is its position as the replacement configuration for the earlier 20G1AJE460AN0NNNNN.

The JN0 model maintains the same basic 600 VAC, 460 A, Frame 8 high-power architecture while using the preferred CM-jumper-installed configuration.

For an existing installation, the complete electrical system should still be reviewed before replacement, including motor current, grounding, braking, motor cable characteristics, network configuration, physical dimensions, cooling, and control parameters.

From a practical engineering perspective, the 20G1AJE460JN0NNNNN is best described as a large-frame, high-current, 600 VAC PowerFlex 755 AC drive for demanding industrial motor-control and automation applications.

Its combination of high horsepower, substantial current capacity, network integration, industrial enclosure protection, forced-air cooling, and flexible duty ratings makes it a strong choice for large motor systems where reliable variable-speed operation and integration with a plant automation system are important.