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Allen-Bradley 20G1AJE295JN4NNNNN PowerFlex 755 AC Drive

1. Product Introduction

The 20G1AJE295JN4NNNNN is a high-power Allen-Bradley PowerFlex 755 AC drive designed for demanding industrial motor-control applications.

It is a 600 VAC, three-phase, 295 A, Frame 8 air-cooled packaged drive intended for large industrial motors where controlled starting, adjustable speed, process regulation, high overload capability, and networked automation are required.

The model provides three major duty classifications:

• 350 HP Light Duty
• 300 HP Normal Duty
• 250 HP Heavy Duty

This makes the drive suitable for a wide range of large-motor applications, particularly pumps, fans, blowers, conveyors, process equipment, material-handling systems, water and wastewater equipment, and other industrial machinery.

A particularly important feature of the JN4 configuration is the combination of the CM jumper installed configuration and the Enhanced LCD Full Numeric HIM.

Compared with a no-HIM configuration, this provides a practical local operator interface for commissioning, parameter adjustment, status monitoring, troubleshooting, and maintenance.

The drive uses an IP54 / NEMA Type 12, 800 mm deep MCC-style enclosure, making it suitable for installation in industrial electrical rooms and large motor-control assemblies.

It also includes an integrated EMC filter, AC input with precharge, no DC terminals, forced-air cooling, and embedded EtherNet/IP communication.

The product is currently identified as an active configuration, making it particularly relevant for replacement, expansion, and new industrial control projects.

2. Brand and Series

Item	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 755 AC Drive
Product Type	High-Power AC Variable Frequency Drive
Catalog Number	20G1AJE295JN4NNNNN
Configuration	JN4
Voltage Class	600 VAC
Phase	Three Phase
Frame	Frame 8
Cooling	Forced Air / Air Cooled
Enclosure	IP54 / NEMA Type 12
Package Style	800 mm Deep MCC Style
Communication	Embedded EtherNet/IP
Local Operator Interface	Enhanced LCD Full Numeric HIM
HIM Enclosure	IP66 / NEMA Type 4X/12
Input	AC Input with Precharge
DC Terminals	None
EMC Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None

3. Main Technical Parameters

Parameter	Specification
Model	20G1AJE295JN4NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	Air-Cooled AC Drive
Input Voltage	600 VAC
Input Phase	3 Phase
Output Current	295 A Normal Duty
Light-Duty Current Class	Approximately 355 A
Normal-Duty Current	295 A
Heavy-Duty Current Class	Approximately 272 A
Light-Duty Power	350 HP
Normal-Duty Power	300 HP
Heavy-Duty Power	250 HP
Frame Size	Frame 8
Enclosure	IP54
NEMA Rating	Type 12
Cabinet Depth	800 mm
Cabinet Style	MCC Style
Cooling	Forced Air
Communication	Embedded EtherNet/IP
Local HIM	Enhanced LCD Full Numeric HIM
HIM Protection	IP66 / NEMA Type 4X/12
Input Configuration	AC Input with Precharge
DC Input Terminals	No
EMC Filter	Yes
CM Jumper	Installed
Dynamic Braking	None
Approx. Height	2100–2500 mm
Approx. Width	600 mm
Approx. Depth	800 mm
Approx. Weight	Approximately 600–650 kg
Installation	Floor-standing / MCC-style industrial installation
Primary Application	Large industrial motor control

4. Electrical Performance

The 20G1AJE295JN4NNNNN is designed for high-power motor applications in the 600 VAC class.

Its 295 A normal-duty rating provides substantial continuous motor current capacity, while the drive’s higher light-duty and overload capabilities allow it to accommodate applications with different load characteristics.

The correct duty rating should be determined from the actual motor current, load profile, acceleration requirements, overload conditions, and operating cycle.

Duty	Continuous Current	1-Minute Overload	3-Second Overload	Horsepower
Light Duty	Approx. 355 A	Approx. 391 A	Application dependent	350 HP
Normal Duty	295 A	Approx. 325 A	Approx. 490 A	300 HP
Heavy Duty	Approx. 272 A	Approx. 408 A	Approx. 490 A	250 HP

The 300 HP Normal Duty rating is particularly useful as a general reference when evaluating the drive for large industrial motors.

For centrifugal loads such as pumps and fans, the Light-Duty rating may provide a larger available horsepower range.

For applications requiring higher torque and more severe overload conditions, the Heavy-Duty rating becomes more important.

5. 600 VAC Three-Phase Configuration

The 600 VAC input class is one of the defining characteristics of the 20G1AJE295JN4NNNNN.

Many industrial facilities use 575/600 V distribution systems for large motors because higher voltage allows high motor power to be transmitted at lower current compared with lower-voltage systems.

This makes the drive particularly useful in:

• Large processing plants
• Mining facilities
• Water-treatment facilities
• Cement plants
• Material-handling systems
• Heavy manufacturing
• Large ventilation systems
• Industrial pumping stations

The three-phase configuration is intended for industrial three-phase AC motor systems rather than small single-phase machinery.

6. PowerFlex 755 Platform

The PowerFlex 755 family is positioned for high-performance industrial motor applications.

The 20G1AJE295JN4NNNNN uses this platform to combine high-power motor control with network communication, diagnostics, local operator control, and industrial enclosure construction.

The drive can be used as an individual motor controller or as part of a larger automated production system.

A typical system can include:

• PLC
• HMI
• Industrial Ethernet
• Motor
• Sensors
• Process instrumentation
• Control cabinet
• Safety system
• Supervisory control

The drive handles the motor-control function while the higher-level automation system can manage production logic and process coordination.

7. Enhanced LCD Full Numeric HIM

One of the most important characteristics of the JN4 version is its Enhanced LCD Full Numeric HIM.

The local HIM provides a convenient interface for:

• Parameter setup
• Start/stop operation where permitted
• Frequency reference adjustment
• Status monitoring
• Fault review
• Alarm review
• Parameter verification
• Commissioning
• Maintenance
• Troubleshooting

The HIM is specified with IP66 / NEMA Type 4X/12 protection.

This makes the JN4 configuration especially useful when maintenance personnel need a physical operator interface directly associated with the drive.

For a large Frame 8 drive, local access can be very valuable during commissioning because technicians can observe operating conditions without relying exclusively on the PLC or engineering workstation.

8. Difference Between AN4 and JN4

The difference between 20G1AJE295AN4NNNNN and 20G1AJE295JN4NNNNN is important.

Both are 295 A, 600 VAC, Frame 8 PowerFlex 755 configurations with an Enhanced LCD Full Numeric HIM.

The key configuration difference is the common-mode jumper arrangement.

Model	Voltage	Current	HIM	CM Jumper	EMC Filter
20G1AJE295AN4NNNNN	600 VAC	295 A ND	Enhanced LCD Full Numeric HIM	Removed	Yes
20G1AJE295JN4NNNNN	600 VAC	295 A ND	Enhanced LCD Full Numeric HIM	Installed	Yes

The JN4 configuration therefore should not be treated as simply a cosmetic variation of the AN4 model.

The grounding and common-mode configuration should be considered when selecting the drive for a particular electrical distribution system.

9. Embedded EtherNet/IP

The drive includes embedded EtherNet/IP communication.

This allows the drive to become part of a modern industrial automation network without relying exclusively on conventional hardwired control signals.

Typical network functions can include:

• Start command
• Stop command
• Speed reference
• Drive enable
• Status feedback
• Fault indication
• Alarm information
• Output frequency
• Motor current
• Operating status
• Diagnostic information
• Parameter access

For a large plant with many motors, network integration can greatly simplify system architecture.

Instead of installing separate hardwired control circuits for every operating parameter, the automation system can exchange information with the drive through the industrial network.

10. AC Input with Precharge

The 20G1AJE295JN4NNNNN uses an AC input with precharge configuration.

Precharge is particularly important in a large AC drive because the DC bus contains substantial energy-storage components.

During energization, the precharge circuit controls the initial charging process of the DC bus.

The specified configuration does not include external DC terminals.

This means the drive should be engineered around its intended AC input architecture rather than being assumed to be suitable for an external common DC-bus system.

11. EMC Filter

The drive is configured with an EMC filter.

The integrated filtering is intended to help control electromagnetic emissions associated with high-frequency inverter switching.

This can be important in industrial installations containing:

• PLCs
• HMIs
• Industrial Ethernet
• Analog instrumentation
• Sensors
• Measurement systems
• Communication networks
• Other variable-frequency drives

Good EMC performance still depends on the complete installation.

The motor cable, grounding system, cabinet construction, cable routing, shield termination, and equipment bonding all influence the final EMC behavior of the system.

12. Common-Mode Jumper Installed

The JN4 configuration specifies the CM jumper installed arrangement.

This is an electrical configuration detail rather than an optional cosmetic feature.

The common-mode configuration affects the relationship between the drive, motor, grounding system, and electrical distribution.

During installation or replacement, the existing electrical system should be reviewed before changing the common-mode configuration.

A drive should not be selected solely according to horsepower and current if the grounding configuration is different from the existing installation.

13. Enclosure and Environmental Protection

The 20G1AJE295JN4NNNNN uses an IP54 / NEMA Type 12 packaged enclosure.

This provides a significantly more industrialized physical package than an open-frame inverter.

It is appropriate for industrial electrical environments where the drive may encounter dust, dirt, and normal non-corrosive industrial contamination.

Environmental / Mechanical Feature	Specification
Enclosure Protection	IP54
NEMA Enclosure	Type 12
Cabinet Style	800 mm Deep MCC Style
Frame	Frame 8
Cooling	Forced Air
Drive Installation	Industrial electrical room / MCC
Local HIM	IP66 / NEMA Type 4X/12
Typical Environment	Industrial
Installation Type	Large floor-standing / MCC-style equipment

14. Dimensions and Weight

The 20G1AJE295JN4NNNNN is a large Frame 8 packaged drive.

It should be considered a floor-standing or MCC-style piece of industrial equipment rather than a compact cabinet-mounted VFD.

For preliminary mechanical planning, a physical envelope of approximately 2100–2500 mm high × 600 mm wide × 800 mm deep can be used, with an approximate equipment weight in the range of 600–650 kg.

These values should be treated as engineering planning figures rather than final fabrication dimensions.

Before manufacturing a cabinet, foundation, lifting frame, or transport fixture, the applicable mechanical drawing for the exact configuration should be used.

Dimension / Weight	Approximate Value
Height	Approx. 2100–2500 mm
Width	Approx. 600 mm
Depth	Approx. 800 mm
Weight	Approx. 600–650 kg
Frame	Frame 8
Cabinet Depth Class	800 mm
Installation	MCC / floor-standing
Handling	Heavy equipment lifting required

The large weight is primarily associated with the high-current power section, enclosure, cooling system, bus structure, filtering, protection components, and associated packaged-drive hardware.

15. Cooling System

The drive uses forced-air cooling.

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

Cooling-air flow should remain unobstructed.

The installation should provide adequate:

• Air intake
• Air exhaust
• Cabinet ventilation
• Clearance
• Ambient-temperature control
• Maintenance access

Routine maintenance should include inspection of cooling fans and airflow passages.

Dust accumulation can reduce cooling efficiency and increase thermal stress on power components.

16. Main Applications

16.1 Large Pump Systems

The drive is well suited to large pumping applications.

Typical examples include:

• Water-transfer pumps
• Cooling-water pumps
• Process pumps
• Raw-water pumps
• High-lift pumps
• Circulation pumps
• Wastewater pumps
• Industrial utility pumps

Variable speed control allows the pumping system to respond to changing process demand.

Instead of continuously operating at full speed, the motor can operate at a speed appropriate to the required flow or pressure.

16.2 Large Fans

Large industrial fans can require several hundred horsepower.

The 20G1AJE295JN4NNNNN provides the current and voltage class required for this type of equipment.

Typical applications include:

• Furnace fans
• Exhaust fans
• Ventilation systems
• Boiler fans
• Process-air fans
• Cooling fans
• Dust-collection systems
• Large HVAC systems

16.3 Blowers

Industrial blowers frequently require controlled speed and stable process operation.

Applications include:

• Aeration blowers
• Process-air blowers
• Combustion-air systems
• Industrial ventilation
• Pneumatic material-handling systems

The drive can regulate blower speed according to pressure, airflow, temperature, or production requirements.

16.4 Conveyors

Large conveyors often have high inertia and significant starting torque requirements.

A variable frequency drive can provide controlled acceleration and deceleration.

Benefits can include:

• Reduced mechanical shock
• Controlled startup
• Reduced belt stress
• Better speed control
• Improved coordination between conveyor sections
• Easier process synchronization

This makes the drive suitable for large material-handling systems.

16.5 Mining

Mining equipment frequently operates with large motors under severe mechanical conditions.

Potential applications include:

• Mining conveyors
• Dewatering pumps
• Ventilation fans
• Material-handling systems
• Processing equipment
• Crushers
• Large exhaust systems

The high-power Frame 8 architecture is appropriate for many large mining motors, although heavy-duty sizing must be verified for high-torque applications.

16.6 Cement Plants

Cement production contains many large motor-driven machines.

Typical applications include:

• Process fans
• Conveyors
• Material feeders
• Pumps
• Blowers
• Dust-collection systems
• Grinding-related auxiliary systems

The drive can provide controlled motor speed while communicating operating information to the plant control system.

16.7 Water and Wastewater

The combination of large motor capacity and network integration makes this drive suitable for large water infrastructure.

Potential applications include:

• Water intake stations
• High-lift pumping
• Distribution pumps
• Wastewater pumping
• Aeration systems
• Sludge systems
• Industrial wastewater treatment

16.8 Material Handling

Large material-handling equipment often requires precise acceleration and deceleration.

The drive can be used on:

• Belt conveyors
• Bulk-material systems
• Port equipment
• Production conveyors
• Large feeders
• Transfer systems

16.9 Process Manufacturing

Large industrial processes frequently use variable-speed motors to regulate production.

The drive can be applied to:

• Process pumps
• Large blowers
• Feed systems
• Cooling equipment
• Material handling
• Mixing systems
• Large auxiliary machinery

17. Major Product Advantages

17.1 High Current Capacity

The 295 A normal-duty rating allows the drive to control substantial industrial motors.

This makes it suitable for applications where compact VFDs are no longer practical.

The drive can accommodate large motors while still providing adjustable speed and controlled acceleration.

17.2 600 VAC Operation

The 600 VAC class is particularly valuable for high-power industrial installations.

At a given motor power, higher voltage can reduce the current required compared with lower-voltage motor systems.

This is useful in facilities with 575/600 V motor distribution.

17.3 Three Duty Ratings

The Light-Duty, Normal-Duty, and Heavy-Duty classifications provide flexibility.

The drive can be evaluated against the actual load rather than simply using one fixed horsepower number.

This is especially important because a 300 HP motor driving a centrifugal pump can impose a very different load profile from a 300 HP motor driving a high-inertia conveyor.

17.4 Local HIM

The Enhanced LCD Full Numeric HIM is a significant advantage of the JN4 configuration.

It provides local access for commissioning and maintenance.

A technician can work directly at the drive instead of depending entirely on a remote control system.

17.5 IP66 / NEMA Type 4X/12 HIM

The local HIM is provided with a higher environmental protection level than the main drive enclosure.

This makes it practical for industrial operator and maintenance environments.

17.6 Embedded EtherNet/IP

The integrated network interface allows the drive to be incorporated into a modern PLC-based automation system.

This reduces the need for extensive point-to-point control wiring and provides a convenient method for collecting operating and diagnostic data.

17.7 IP54 / NEMA Type 12 Package

The packaged enclosure is suitable for industrial electrical environments.

This can simplify installation compared with an open-frame drive that would require a separate enclosure.

17.8 EMC Filtering

The integrated EMC filter can help reduce conducted interference and improve compatibility with other electrical and electronic equipment.

This is particularly valuable in large industrial installations with multiple drives and sensitive instrumentation.

17.9 MCC-Style Construction

The 800 mm deep MCC-style package is designed around large industrial electrical installations.

This makes the drive appropriate for centralized motor-control rooms and large equipment lineups.

17.10 Serviceability

The combination of local HIM, network communication, diagnostics, and accessible industrial construction can make commissioning and troubleshooting more efficient.

For large industrial facilities, reducing diagnostic time can have a direct impact on maintenance efficiency and production availability.

18. Five Recommended Same-Series / Related Models

The following models are useful comparisons within the PowerFlex 755 high-power family.

Model	Voltage Class	Current Class	Light Duty	Normal Duty	Heavy Duty	Main Difference
20G1AJE295JN4NNNNN	600 VAC	295 A ND	350 HP	300 HP	250 HP	Reference model, JN4 with HIM
20G1AJE295JN0NNNNN	600 VAC	295 A ND	350 HP	300 HP	250 HP	Similar electrical rating, no HIM
20G1AJE355JN4NNNNN	600 VAC	355 A class	400 HP	350 HP	300 HP	Higher current and power
20G1AJE395JN4NNNNN	600 VAC	395 A class	450 HP	400 HP	350 HP	Higher-power Frame 8 option
20G1AJE435JN4NNNNN	600 VAC	435 A class	500 HP	450 HP	350 HP	Higher-power 600 VAC option

These models are particularly useful when the application requires the same general PowerFlex 755 architecture but different motor-current capacity or operator-interface configuration.

The 20G1AJE295JN0NNNNN is especially useful as a direct configuration comparison because it retains the same basic electrical rating but does not include the enhanced local HIM.

19. Related 295 A Configurations

The 295 A family provides several useful catalog-number combinations.

Model	Current Class	Voltage	HIM	CM Jumper	General Configuration
20G1AJE295AN0NNNNN	295 A ND	600 VAC	No HIM	Removed	Original AN0 configuration
20G1AJE295AN4NNNNN	295 A ND	600 VAC	Enhanced LCD	Removed	AN4 local-HIM configuration
20G1AJE295JN0NNNNN	295 A ND	600 VAC	No HIM	Installed	JN0 configuration
20G1AJE295JN4NNNNN	295 A ND	600 VAC	Enhanced LCD	Installed	JN4 reference model

This comparison is important when selecting replacement equipment.

The same 295 A electrical rating does not mean that the models are interchangeable in every installation.

20. Five Popular Allen-Bradley Models for Comparison

The following five models are useful examples from the same general industrial drive brand and are often considered when evaluating different motor sizes or application requirements.

Model	Series	Voltage Class	Approx. Current Class	General Power Range	Typical Application
25B-D030N114	PowerFlex 525	480 VAC class	30 A class	Approx. 15 HP class	General machinery
25C-D030N114	PowerFlex 527	480 VAC class	30 A class	Approx. 15 HP class	Networked machine control
20G1AGC260JN0NNNNN	PowerFlex 755	480 VAC class	260 A	Large motor class	Pumps, fans, conveyors
20G1AGC302JA0NNNNN	PowerFlex 755	480 VAC class	302 A class	Large motor class	Heavy industrial machinery
20G1AGE053JA0NNNNN	PowerFlex 755	600 VAC class	High-current class	Large motor class	Large industrial equipment

These models should not be treated as direct substitutes for the 20G1AJE295JN4NNNNN.

They represent different voltage classes, current capacities, frame arrangements, and control configurations.

The correct model should always be selected according to the motor nameplate and application requirements.

21. Application Selection Guide

Application	Suitability	Recommended Consideration
Large centrifugal pump	Excellent	Light-Duty rating often important
Large cooling-water pump	Excellent	Check continuous motor current
Large wastewater pump	Excellent	Check starting and overload requirements
Large process pump	Excellent	Check process speed range
Large industrial fan	Excellent	Light-Duty capability useful
Large blower	Excellent	Verify torque profile
Conveyor	Excellent	Normal/Heavy Duty selection important
Mining conveyor	Excellent	Heavy-duty sizing recommended
Cement conveyor	Excellent	Verify acceleration torque
Water-treatment system	Excellent	Network integration useful
Wastewater aeration	Excellent	Variable-speed control beneficial
Material-handling equipment	Excellent	Check inertia and acceleration
Compressor	Good	Compressor type must be evaluated
Crusher	Good	Heavy-duty sizing required
Small machine motor	Poor	Smaller drive normally preferable

22. Installation Recommendations

Because the 20G1AJE295JN4NNNNN is a large Frame 8 drive, installation planning should begin with the mechanical and electrical requirements.

The equipment should have sufficient space for:

• Power cable termination
• Motor cable termination
• Control wiring
• Network connections
• Airflow
• Cooling-fan service
• Maintenance
• HIM access
• Inspection
• Component replacement

The approximately 600–650 kg weight also means that lifting and transportation arrangements must be considered before the equipment reaches the installation site.

23. Electrical Installation Considerations

The incoming power system should be checked for:

• Voltage
• Phase
• Available fault current
• Protective-device coordination
• Grounding arrangement
• Motor feeder configuration
• Disconnect requirements
• Cable ampacity

The motor side should be checked for:

• Motor voltage
• Full-load current
• Motor horsepower
• Motor insulation system
• Cable length
• Cable type
• Grounding
• Shielding requirements

The complete electrical system should be evaluated rather than sizing the drive from horsepower alone.

24. Motor Cable and EMC Considerations

A high-power VFD generates high-frequency switching components.

The motor cable therefore has an important role in system performance.

The installation should consider:

• Cable shielding
• Grounding
• Motor-frame bonding
• Cable routing
• Separation from instrumentation
• Separation from communication cables
• Cable length
• Output reactor requirements where applicable
• Motor insulation compatibility

The EMC filter in the drive is only one part of the overall EMC strategy.

Correct installation practices are equally important.

25. Grounding and Common-Mode Considerations

The JN4 configuration has the CM jumper installed.

This configuration should be considered together with the plant grounding system and power-distribution arrangement.

Particular attention should be paid to:

• Protective earth
• Motor frame grounding
• Drive enclosure bonding
• Motor cable grounding
• Cable shield termination
• Electrical cabinet bonding
• Common-mode current paths

Improper grounding can contribute to communication problems, nuisance faults, bearing currents, electrical noise, and other system-level issues.

26. Maintenance

Routine maintenance should include inspection of the following:

Maintenance Item	Recommended Check
Cooling Fans	Noise, airflow, bearing condition
Air Passages	Dust and obstruction
Power Terminals	Tightness and overheating
Ground Connections	Mechanical and electrical integrity
Motor Cable	Insulation, routing and termination
Network Cable	Connection and communication quality
HIM	Display and keypad operation
Enclosure	Dust, moisture and physical condition
Fault History	Repeated trips or abnormal events
Operating Temperature	Abnormal temperature rise
Cabinet Ventilation	Adequate airflow
EMC Connections	Grounding and shield integrity

A large drive should be maintained proactively.

Fan deterioration or blocked airflow can create thermal stress long before a complete drive failure occurs.

27. Why the JN4 Configuration Is Attractive

The JN4 version is particularly attractive when the project requires both high-power motor control and local service access.

A no-HIM configuration can be perfectly suitable for a fully centralized automation system.

However, many industrial plants still prefer a local interface because technicians need to:

• Read faults
• Check parameters
• Verify frequency
• Confirm operating status
• Perform commissioning
• Troubleshoot field equipment
• Check drive status during maintenance

The Enhanced LCD Full Numeric HIM therefore adds practical value to the drive without changing its basic high-power electrical capacity.

28. Advantages Compared with a No-HIM Configuration

Feature	JN4 Configuration	N0 Configuration
Local HIM	Yes	No
Local Parameter Access	Excellent	Requires external method
Local Fault Diagnosis	Convenient	Less convenient
Commissioning	Easier locally	More dependent on external tools
Maintenance	Very convenient	More centralized
Embedded EtherNet/IP	Yes	Yes
600 VAC	Yes	Yes
295 A Class	Yes	Yes
Frame 8	Yes	Yes
IP54 / NEMA Type 12	Yes	Yes

For large industrial equipment, the local interface can be a meaningful operational advantage.

29. Engineering Value

The main engineering value of the 20G1AJE295JN4NNNNN comes from the combination of high electrical capacity and industrial control functionality.

It is not merely a high-power frequency converter.

It can function as a major component of a complete motor-control architecture.

The drive can provide:

• Motor speed control
• Controlled acceleration
• Controlled deceleration
• Process regulation
• Network communication
• Local operator access
• Fault information
• Diagnostic information
• Industrial enclosure protection

This makes it well suited to centralized plant automation.

30. Product Positioning

The 20G1AJE295JN4NNNNN occupies a high-power position within the PowerFlex 755 family.

Its combination of 600 VAC, 295 A, Frame 8, 350 HP LD, 300 HP ND, and 250 HP HD makes it appropriate for large industrial motor systems.

The JN4 configuration adds an enhanced local operator interface and the installed CM-jumper arrangement.

It is therefore a practical choice where both centralized automation and local maintenance access are required.

31. Summary Parameter Table

Category	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Model	20G1AJE295JN4NNNNN
Product Type	PowerFlex 755 AC Packaged Drive
Voltage	600 VAC
Phase	3 Phase
Normal-Duty Current	295 A
Light-Duty Rating	350 HP
Normal-Duty Rating	300 HP
Heavy-Duty Rating	250 HP
Frame	8
Enclosure	IP54
NEMA	Type 12
Cabinet	800 mm Deep MCC Style
Cooling	Forced Air
Communication	Embedded EtherNet/IP
HIM	Enhanced LCD Full Numeric
HIM Protection	IP66 / NEMA Type 4X/12
Input	AC Input with Precharge
DC Terminals	None
EMC Filter	Yes
CM Jumper	Installed
Dynamic Braking	None
Approx. Height	2100–2500 mm
Approx. Width	600 mm
Approx. Depth	800 mm
Approx. Weight	600–650 kg
Installation	Industrial MCC / floor-standing
Main Applications	Pumps, fans, blowers, conveyors, mining, cement, water/wastewater, process machinery
Local Operation	Yes
Networked Control	Yes
Current Configuration	Active

32. Final Assessment

The Allen-Bradley 20G1AJE295JN4NNNNN is a high-power PowerFlex 755 AC drive designed for large three-phase industrial motors operating in the 600 VAC class.

Its 295 A normal-duty current rating, 350 HP Light-Duty rating, 300 HP Normal-Duty rating, and 250 HP Heavy-Duty rating make it suitable for a broad range of industrial loads.

The Frame 8, IP54 / NEMA Type 12, 800 mm deep MCC-style package is intended for large industrial installations rather than compact machine applications.

The embedded EtherNet/IP interface allows the drive to integrate into modern PLC-based control systems.

The Enhanced LCD Full Numeric HIM is one of the most useful features of the JN4 configuration because it provides local access for commissioning, monitoring, parameter adjustment, and maintenance.

The CM jumper installed configuration is another important distinction and should be considered when matching the drive to the plant grounding and electrical-distribution system.

The integrated EMC filter, AC input with precharge, forced-air cooling, industrial enclosure, and network capabilities make the drive well suited to large pumps, fans, blowers, conveyors, water and wastewater systems, mining equipment, cement equipment, material-handling systems, and process machinery.

For engineering selection, the most important specifications to verify are the motor’s actual full-load current, motor voltage, duty cycle, acceleration torque, overload requirement, ambient temperature, motor-cable length, enclosure requirements, braking requirements, grounding arrangement, and communication architecture.

In practical terms, the 20G1AJE295JN4NNNNN can be summarized as a 600 VAC, three-phase, 295 A normal-duty, Frame 8, IP54/NEMA Type 12, air-cooled PowerFlex 755 AC packaged drive with embedded EtherNet/IP, Enhanced LCD Full Numeric HIM, EMC filtering, AC precharge, no DC terminals, and CM jumper installed