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Allen-Bradley 20G1ALC460JN2NNNNN PowerFlex 755 AC Drive – Detailed Product Profile
1. Product Overview
The Allen-Bradley 20G1ALC460JN2NNNNN is a high-power PowerFlex 755 air-cooled AC drive designed for demanding industrial motor-control applications.
It is a 400 VAC, three-phase, 460 A, Frame 8 drive with an embedded EtherNet/IP interface, forced-air cooling, AC input with precharge, integrated input filtering, and a CM jumper configuration.
The drive is rated for three different industrial duty levels:
- 315 kW Light Duty (LD)
- 250 kW Normal Duty (ND)
- 200 kW Heavy Duty (HD)
This makes the drive suitable for large motors used in pumps, fans, blowers, conveyors, compressors, process machinery, material-handling equipment, and other large industrial loads where reliable variable-speed control is required.
The JN2 configuration is particularly important because it includes an enhanced LCD, full numeric, handheld/local HIM. This provides a substantially more complete local operator interface than configurations supplied without a HIM.
The product is an IP20 / NEMA Type 1, 800 mm deep MCC-style cabinet configuration, making it appropriate for installation inside a suitable electrical room, motor-control center, switchgear area, or industrial control cabinet environment.
2. Brand and Product Family
| Item | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Series | PowerFlex 750-Series |
| Product Series | PowerFlex 755 |
| Product Type | Air-Cooled AC Drive |
| Catalog Number | 20G1ALC460JN2NNNNN |
| Drive Type | Variable Frequency AC Drive |
| Cooling | Forced Air |
| Frame | Frame 8 |
| Installation Style | MCC Style |
| Enclosure | IP20 / NEMA Type 1 |
| Product Status | Active |
| Operator Interface | Enhanced LCD, Full Numeric, Handheld/Local HIM |
The PowerFlex 755 belongs to the PowerFlex 750-Series family and is positioned as a high-performance industrial AC drive for large motors and complex automation systems.
Compared with smaller drives intended primarily for compact machines, the PowerFlex 755 architecture is much more suitable for high-power centralized industrial equipment.
3. Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model / Catalog Number | 20G1ALC460JN2NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Product Family | PowerFlex 750-Series |
| Drive Type | Air-Cooled AC Drive |
| Input Voltage | 400 VAC |
| Input Phase | 3 Phase |
| Rated Current | 460 A |
| Light Duty Rating | 315 kW |
| Normal Duty Rating | 250 kW |
| Heavy Duty Rating | 200 kW |
| Frame Size | Frame 8 |
| Cooling Method | Forced Air |
| Input Configuration | AC Input with Precharge |
| DC Terminals | No DC Terminals |
| Dynamic Braking | None |
| Input Filtering | Filtered |
| CM Configuration | CM Jumper Installed |
| Network | Embedded EtherNet/IP |
| HIM | Enhanced LCD, Full Numeric, Handheld/Local HIM |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet Style | 800 mm Deep MCC Style |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm |
| Approx. Depth | 600 mm or 800 mm, depending on Frame 8 cabinet configuration |
| Approx. Weight | 623 kg |
| Cooling Fan Type | Backward Curved Centrifugal |
| Approx. Fan Airflow | 1805 m³/h |
| Fan Electrical Input Power | Approximately 0.45 kW |
The dimensional and weight values above are approximate Frame 8 IP20 MCC-style reference values. Actual installed dimensions and shipping weight can vary depending on cabinet arrangement, options, wiring bays, and other configuration details.
4. Understanding the Catalog Number
The catalog number 20G1ALC460JN2NNNNN contains configuration information that identifies the drive architecture, voltage class, current rating, enclosure arrangement, interface configuration, and operator-interface configuration.
For practical purchasing and engineering purposes, the most important information is that this catalog number identifies a:
PowerFlex 755, 400 VAC, three-phase, 460 A, Frame 8, IP20, 800 mm MCC-style, air-cooled drive with embedded EtherNet/IP and an enhanced full-numeric local HIM.
The final configuration is therefore substantially different from a similar 20G1ALC460 model without a HIM.
5. Electrical Rating
The drive is designed for a 400 VAC three-phase industrial power system.
Its rated current is 460 A, placing it firmly in the large industrial-drive category.
The power rating depends on the required duty cycle.
| Duty Classification | Continuous Output Rating | Typical Application Character |
|---|---|---|
| Light Duty (LD) | 315 kW | Loads with relatively moderate torque demand |
| Normal Duty (ND) | 250 kW | General industrial variable-torque or moderate-duty machinery |
| Heavy Duty (HD) | 200 kW | Higher overload and torque-demand applications |
The distinction between LD, ND, and HD is important.
A motor should not simply be selected based on the maximum kW figure printed in the catalog description. The actual application duty, overload requirement, acceleration profile, motor current, operating speed range, and load torque must be considered.
For example, a 250 kW motor driving a large centrifugal pump may be a suitable Normal Duty application, while a mechanically demanding conveyor or crusher-type load may require selection according to the Heavy Duty rating.
6. Light Duty – 315 kW
The maximum listed Light Duty power rating is 315 kW.
Light Duty applications generally have lower overload requirements and are often associated with variable-torque loads.
Typical examples include:
- Large centrifugal pumps
- Cooling-water pumps
- Large ventilation fans
- Cooling towers
- Centrifugal blowers
- HVAC air-handling systems
- Some large process pumps
The 315 kW LD rating gives the drive substantial capacity for large industrial rotating equipment.
7. Normal Duty – 250 kW
The Normal Duty rating is 250 kW.
This is one of the most important ratings for general industrial engineering because many large industrial motors fall into the normal-duty category.
Typical applications include:
- Process pumps
- Large conveyors
- Material-handling machinery
- Fans
- Blowers
- Industrial mixers
- General production machinery
- Large rotating process equipment
For a 250 kW motor, the actual motor full-load current should still be checked carefully against the drive rating.
8. Heavy Duty – 200 kW
The Heavy Duty rating is 200 kW.
Heavy Duty operation is intended for applications in which the motor and drive experience greater torque demand or more severe overload conditions.
Typical examples include:
- Heavy conveyors
- Crushers
- Hoists
- High-torque machinery
- Material-processing equipment
- Large positive-displacement loads
- Machinery requiring significant acceleration torque
For these applications, the 200 kW HD rating is the appropriate reference rather than the 315 kW LD value.
9. Input Power Configuration
The 20G1ALC460JN2NNNNN uses:
400 VAC, three-phase input with AC input precharge.
The precharge arrangement is important in a high-power drive because the input section must manage the initial charging of the DC-link capacitors.
Without proper precharge control, the initial energization of a large drive can create an undesirable inrush-current condition.
The precharge architecture therefore forms an important part of the drive’s high-power input design.
10. No DC Terminals
This particular configuration is specified with:
No DC terminals.
This means the drive is intended primarily as an AC-input drive rather than a configuration intended for direct external DC-bus connection.
This distinction becomes important when engineers are designing common-bus systems, regenerative systems, or systems in which multiple drives share a DC bus.
The 20G1ALC460JN2NNNNN should therefore be selected with the complete system power architecture in mind.
11. Dynamic Braking
The drive configuration specifies:
Dynamic Braking: None.
This means the catalog configuration does not include an internal dynamic-braking transistor.
For applications with high-inertia loads, rapid deceleration, or frequent stopping, the braking requirement must therefore be evaluated separately.
Applications that may require special braking consideration include:
- High-inertia fans
- Large centrifuges
- Heavy conveyors
- High-speed rotating equipment
- Rapid indexing equipment
- Hoisting systems
- Machines requiring frequent deceleration
If braking energy is substantial, the system may require an appropriate external braking solution or a different drive configuration.
12. Embedded EtherNet/IP
One of the major advantages of the PowerFlex 755 platform is its ability to integrate into industrial Ethernet-based automation systems.
The 20G1ALC460JN2NNNNN includes embedded EtherNet/IP.
This allows the drive to participate in a networked automation architecture rather than relying entirely on hardwired start/stop and speed-reference signals.
A network-based control architecture can be used for functions such as:
- Start and stop commands
- Speed reference
- Drive status
- Fault information
- Current monitoring
- Frequency monitoring
- Motor load information
- Alarm information
- Parameter access
- Diagnostic information
For a large industrial plant, this can significantly simplify integration between the drive and the main control system.
13. Enhanced LCD Full Numeric HIM
The JN2 configuration is particularly identifiable by its:
Enhanced LCD, Full Numeric, Handheld/Local HIM.
This is one of the main differences between the JN2 configuration and a JN0 configuration.
A local HIM can be valuable during:
- Commissioning
- Motor rotation testing
- Parameter adjustment
- Troubleshooting
- Local maintenance
- Fault investigation
- Manual speed testing
- Drive status verification
The enhanced display also makes the drive more practical for technicians working directly at the electrical cabinet.
14. Local Operation and Commissioning
For large industrial drives, commissioning can be significantly easier when a local operator interface is available.
A technician can work directly at the drive while checking:
- Motor direction
- Output frequency
- Output current
- Drive status
- Fault codes
- Operating conditions
- Acceleration and deceleration behavior
- Control references
This is especially useful during initial startup, when the control-room automation system may not yet be fully commissioned.
15. Forced-Air Cooling
The 20G1ALC460JN2NNNNN is an air-cooled drive.
Because the drive operates at a very high current rating, thermal management is critical.
The configuration uses forced-air cooling with a large centrifugal fan arrangement.
The listed fan configuration uses a backward-curved centrifugal fan, with an approximate airflow of 1805 m³/h.
The fan electrical input power is approximately 0.45 kW.
16. Cooling and Electrical Room Design
A 460 A high-power drive generates substantial heat during operation.
Consequently, the electrical room should not be designed only around the motor-drive electrical rating.
The designer should also consider:
- Ambient temperature
- Room ventilation
- Cabinet arrangement
- Airflow direction
- Fan exhaust
- Filter condition
- Heat generated by other electrical equipment
- Maintenance access
- Clearance around air intake and exhaust areas
Poor ventilation can increase internal temperature and reduce the reliability of power electronics.
17. IP20 / NEMA Type 1 Construction
The drive is configured as:
IP20 / NEMA Type 1, MCC Style.
This enclosure class is intended for installation in an appropriate protected electrical environment.
It should not be interpreted as a weatherproof outdoor enclosure.
For outdoor installation or areas with significant water, dust, corrosive contamination, or washdown requirements, an appropriately engineered enclosure or packaged system is required.
18. 800 mm Deep MCC-Style Cabinet
The product description identifies an 800 mm deep MCC-style configuration.
This is a large floor-mounted industrial drive rather than a compact wall-mounted VFD.
Cabinet planning should therefore account for:
- Floor area
- Front access
- Cable routing
- Power cable bending radius
- Control wiring
- Ventilation
- Maintenance access
- Transportation path
- Door opening
- Lifting and handling
- Floor loading
19. Dimensions and Weight
For Frame 8 IP20 MCC-style construction, the approximate reference dimensions are:
| Mechanical Parameter | Approximate Value |
|---|---|
| Frame | 8 |
| Height | 2453 mm |
| Width | 600 mm |
| Depth | 600 mm or 800 mm |
| Approximate Weight | 623 kg |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet Style | MCC Style |
| Dimension Basis | Frame 8 reference |
The 623 kg value should be treated as an approximate Frame 8 reference rather than a guaranteed shipping weight for every possible configuration.
If the drive is installed together with a drive/options cabinet arrangement, the overall cabinet width and total weight can increase substantially.
A Frame 8 arrangement with drive and options cabinets can reach approximately 1200 mm width and approximately 1145 kg overall reference weight.
Therefore, transportation and installation planning should be performed using the final configured equipment drawing rather than relying solely on the basic drive-frame number.
20. Mechanical Installation Considerations
Because the equipment weighs several hundred kilograms, mechanical installation is an important engineering issue.
The installation location should have:
- Adequate floor strength
- Suitable anchoring
- Appropriate cable entry arrangements
- Sufficient ventilation
- Adequate maintenance space
- Safe lifting access
- Suitable transportation access
The drive should not be treated like a conventional small wall-mounted frequency inverter.
The Frame 8 architecture requires industrial cabinet planning from the beginning of the project.
21. Main Product Advantages
The major advantages of the 20G1ALC460JN2NNNNN can be summarized as follows:
- High 460 A current capability.
- 315 kW Light Duty capability.
- 250 kW Normal Duty capability.
- 200 kW Heavy Duty capability.
- 400 VAC three-phase operation.
- Embedded EtherNet/IP.
- Enhanced LCD full-numeric HIM.
- Handheld/local operator capability.
- Forced-air cooling.
- Integrated AC input precharge.
- Integrated input filtering.
- Frame 8 high-power architecture.
- Industrial MCC-style construction.
- Suitable for centralized automation systems.
- Suitable for large motors and high-power process equipment.
22. Advantage: High Power Capacity
A major advantage is the 460 A output-current capability.
This places the drive in a class suitable for large industrial motors.
Instead of using many smaller drives for distributed equipment, a Frame 8 drive can directly control a large motor in applications such as:
- Large pump stations
- Large fans
- Large blowers
- Conveyor systems
- Process equipment
- Industrial utilities
- Large material-handling machinery
23. Advantage: Flexible Duty Ratings
The LD, ND, and HD ratings allow engineers to select the drive according to application severity.
This is particularly useful because not every motor application has the same torque characteristics.
A centrifugal pump may require a different duty classification from a heavily loaded conveyor.
The three-duty approach gives engineers a more practical way to evaluate motor-drive compatibility.
24. Advantage: Network Integration
Embedded EtherNet/IP is a major benefit in modern industrial automation.
The drive can become part of the overall control architecture rather than operating as an isolated motor controller.
This can reduce the amount of traditional hardwired control required and improve access to operating and diagnostic information.
25. Advantage: Local HIM
The JN2 configuration has a significant practical advantage during commissioning and maintenance because it includes an enhanced LCD full-numeric local HIM.
A technician can access the drive directly without depending entirely on a remote control station.
This can make troubleshooting much faster when working inside an electrical room.
26. Advantage: Suitable for Large Industrial Plants
The PowerFlex 755 architecture is well suited to large industrial plants where multiple high-power motors must be controlled from a coordinated automation system.
Typical plant areas include:
- Pump rooms
- Cooling systems
- Water treatment plants
- Mining facilities
- Cement plants
- Material-handling facilities
- Process plants
- Manufacturing plants
- Utility systems
- Large ventilation systems
27. Application – Large Water Pumps
Large water pumps are one of the most natural applications for this drive.
Examples include:
- Raw-water pumps
- Cooling-water pumps
- Circulation pumps
- Industrial water pumps
- Booster pumps
- Process-water pumps
- Water-transfer pumps
Variable-speed control allows pump output to be adjusted according to actual process demand.
Instead of operating the pump continuously at full speed and controlling flow only through valves, the drive can regulate motor speed.
This can improve process flexibility and potentially reduce unnecessary energy consumption.
28. Application – Wastewater Systems
The drive can also be applied to large wastewater equipment.
Potential applications include:
- Lift-station pumps
- Aeration blowers
- Transfer pumps
- Sludge-handling equipment
- Process-water pumps
- Large ventilation systems
The network interface can be useful when the drive needs to exchange operating information with a supervisory control system.
29. Application – Fans and Blowers
Large industrial fans and blowers are another strong application area.
Examples include:
- Furnace fans
- Boiler fans
- Exhaust fans
- Process ventilation
- Cooling fans
- Air-handling systems
- Dust-extraction systems
- Large centrifugal blowers
For centrifugal fan systems, variable-speed operation can provide much more flexible air-volume control than simple fixed-speed operation.
30. Application – Conveyors
Large conveyors may require high starting torque and substantial continuous motor power.
The PowerFlex 755 can be used for:
- Mining conveyors
- Bulk-material conveyors
- Cement conveyors
- Warehouse conveyors
- Port material-handling systems
- Aggregate conveyors
- Production-line conveyors
For conveyor applications, the Heavy Duty rating should receive particular attention.
The motor current and required acceleration torque should be checked before final selection.
31. Application – Mining
The high-power Frame 8 configuration is suitable for certain mining applications.
Possible equipment includes:
- Conveyors
- Ventilation fans
- Dewatering pumps
- Crushers
- Material-handling systems
- Large process pumps
- Auxiliary rotating machinery
Mining applications often require careful consideration of overload, mechanical inertia, dust, ambient temperature, and enclosure requirements.
The basic IP20 configuration should therefore be installed in an appropriately protected electrical environment.
32. Application – Cement Plants
Large cement plants use many high-power motors.
Potential applications include:
- Exhaust fans
- Process fans
- Raw-material conveyors
- Cooling fans
- Large pumps
- Blowers
- Material-handling systems
The PowerFlex 755 platform can be particularly useful where high-power motor control needs to be integrated with a larger automation network.
33. Application – Industrial Process Equipment
The drive can also be applied to general process machinery.
Examples include:
- Mixers
- Blowers
- Pumps
- Process fans
- Material-processing equipment
- Large rotating machinery
The application should be evaluated according to motor current, load torque, overload requirements, acceleration time, and braking requirements.
34. Application – Material Handling
Large material-handling equipment can benefit from variable-speed control.
Possible applications include:
- Conveyors
- Feeders
- Transfer systems
- Bulk-material handling
- Loading systems
- Industrial transport equipment
The local HIM can be useful for maintenance technicians during commissioning and troubleshooting.
35. Application – Factory Utility Systems
Many large factories have utility systems that use large motors.
Examples include:
- Central cooling-water pumps
- Compressed-air auxiliary systems
- Exhaust systems
- Cooling towers
- Process-water circulation
- Large ventilation equipment
Using a centralized drive platform can simplify spare-parts management and technician training where multiple PowerFlex drives are installed throughout the facility.
36. Recommended Engineering Selection Process
Before selecting the 20G1ALC460JN2NNNNN for a project, engineers should verify:
| Selection Item | Check |
|---|---|
| Motor Voltage | Must match the drive application |
| Motor Phase | Three-phase motor |
| Motor Current | Must remain within applicable drive rating |
| Motor Power | Check LD / ND / HD rating |
| Load Type | Pump, fan, conveyor, compressor, etc. |
| Duty Cycle | Light, Normal, or Heavy Duty |
| Starting Torque | Verify required torque |
| Acceleration Time | Check against application requirement |
| Deceleration Time | Check braking requirement |
| Regeneration | Determine whether regenerative operation exists |
| Dynamic Braking | Required if application demands it |
| Ambient Temperature | Verify installation environment |
| Enclosure | IP20 installation requires suitable environment |
| Network | Verify EtherNet/IP architecture |
| HIM | JN2 includes enhanced LCD full numeric HIM |
| Cabinet Space | Check Frame 8 dimensions |
| Weight | Plan approximately 623 kg for basic Frame 8 reference |
| Cooling | Verify cabinet-room ventilation |
37. Five Closely Related Models
The following models are good comparisons because they remain within the PowerFlex 755 family and are closely related in voltage class, power range, frame size, or operator-interface configuration.
| Model | Voltage | Current | LD Rating | ND Rating | HD Rating | Frame | HIM / Configuration | Enclosure | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|---|---|---|
| 20G1ALC460JN0NNNNN | 400 VAC | 460 A | 315 kW | 250 kW | 200 kW | 8 | No HIM | IP20 | 2453 × 600 × 600/800 mm | 623 kg |
| 20G1ALC460JN4NNNNN | 400 VAC | 460 A | 315 kW | 250 kW | 200 kW | 8 | Enhanced LCD / Full Numeric HIM | IP20 | Approx. Frame 8 | Approx. 623 kg |
| 20G1ALC540JN2NNNNN | 400 VAC | 540 A | 315 kW | 315 kW | 250 kW | 8 | Enhanced LCD / Full Numeric HIM | IP20 | Approx. Frame 8 | Approx. 623 kg |
| 20G1ALC567JN2NNNNN | 400 VAC | 567 A | 355 kW | 315 kW | 250 kW | 8 | Enhanced LCD / Full Numeric HIM | IP20 | Approx. Frame 8 | Approx. 623 kg |
| 20G1ALC650JN2NNNNN | 400 VAC | 650 A | 400 kW | 355 kW | 315 kW | 8 | Enhanced LCD / Full Numeric HIM | IP20 | Approx. Frame 8 | Approx. 623 kg |
The dimensions and weights in this comparison table are presented as Frame 8 reference values, not as individually certified mechanical drawings for each catalog number.
38. 20G1ALC460JN0NNNNN
The JN0 model is one of the closest alternatives to the requested JN2 configuration.
It has the same basic 400 VAC, 460 A, Frame 8 electrical platform and the same 315/250/200 kW LD/ND/HD ratings.
The major practical difference is the operator-interface configuration.
The JN0 configuration is the appropriate comparison when the project does not require the enhanced full-numeric local HIM.
39. 20G1ALC460JN4NNNNN
The JN4 model is another close alternative.
It retains the same basic electrical rating:
- 400 VAC
- 460 A
- 315 kW LD
- 250 kW ND
- 200 kW HD
- Frame 8
The main selection difference is the operator-interface configuration.
For projects where the local display and operator interface requirements differ, comparing JN0, JN2, and JN4 is worthwhile.
40. 20G1ALC540JN2NNNNN
The 540 A model increases the current capacity compared with the requested 460 A model.
Its approximate rating structure is:
- 315 kW LD
- 315 kW ND
- 250 kW HD
This makes it particularly interesting when a 250 kW motor has a relatively high current requirement or when additional current capacity is desired.
41. 20G1ALC567JN2NNNNN
The 567 A version provides another step upward in current capacity.
Its approximate ratings are:
- 355 kW LD
- 315 kW ND
- 250 kW HD
This model can be considered where the 460 A model is too close to the motor’s actual current requirement.
42. 20G1ALC650JN2NNNNN
The 650 A version moves further into the high-power range.
Its approximate ratings are:
- 400 kW LD
- 355 kW ND
- 315 kW HD
This is a useful comparison for larger process equipment and applications where additional current capacity is required.
43. Five Popular Allen-Bradley Models for Comparison
The following five models cover different areas of the Allen-Bradley PowerFlex product range and can be useful when building a broader drive selection list.
| Model | Series | Voltage | Current / Rating | Power Range | Frame | Cooling | Enclosure | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|---|---|
| 25B-D030N114 | PowerFlex 525 | 380–480 VAC | 30 A | Approx. 15 kW ND | D | Air | IP20 | Approx. compact drive format | Approx. 4.76 kg |
| 25C-D030N114 | PowerFlex 527 | 380–480 VAC | 30 A | Approx. 15 kW ND | D | Air | IP20 | 260 × 130 × 212 mm | Approx. compact-frame reference |
| 20F1AND302JA0NNNNN | PowerFlex 753 | 480 VAC | 302 A | 250 HP ND / 200 HP HD | 7 | Forced Air | IP20/IP00 configuration | Approx. Frame 7 | Frame-dependent |
| 20G1AJE460JN4NNNNN | PowerFlex 755 | 600 VAC | 460 A | 500 HP LD / 500 HP ND / 400 HP HD | 8 | Forced Air | IP54 / Type 12 | Approx. Frame 8 | Approx. Frame 8 |
| 20G1AJF415JN4NNNNN | PowerFlex 755 | 690 VAC | 415 A | 450 kW LD / 400 kW ND / 355 kW HD | 8 | Forced Air | IP54 / Type 12 | Approx. Frame 8 | Approx. Frame 8 |
For these comparison models, exact dimensions and weights can vary according to frame, enclosure, options, wiring bay, and cabinet configuration. The table therefore distinguishes compact-drive dimensions from Frame-level reference values.
44. 25B-D030N114 – PowerFlex 525
The 25B-D030N114 represents a much smaller drive category.
It is intended for applications where the motor power is considerably lower than the 460 A PowerFlex 755 application.
Its advantages include compact installation, integrated industrial networking, and suitability for general machine-level applications.
It is a useful comparison when a project has many small motors in addition to a few large motors.
45. 25C-D030N114 – PowerFlex 527
The 25C-D030N114 belongs to the PowerFlex 527 family.
It is designed around machine-level automation and EtherNet/IP-based control.
Its approximate physical dimensions are:
260 mm × 130 mm × 212 mm.
Compared with the Frame 8 PowerFlex 755, this is a completely different physical class.
The 25C-D030N114 is better suited to compact machinery, while the 20G1ALC460JN2NNNNN is intended for very large industrial motors.
46. 20F1AND302JA0NNNNN – PowerFlex 753
The 20F1AND302JA0NNNNN belongs to the PowerFlex 753 family.
It provides a useful comparison because the PowerFlex 753 is also intended for industrial applications but occupies a somewhat different position in the PowerFlex product family.
Its key comparison points include:
- 480 VAC
- Three-phase
- 302 A
- Approximately 250 HP Normal Duty
- Approximately 200 HP Heavy Duty
- Frame 7
- Forced-air cooling
- Industrial cabinet installation
It can be considered where the power requirement is lower than the 460 A PowerFlex 755 requirement.
47. 20G1AJE460JN4NNNNN – PowerFlex 755
The 20G1AJE460JN4NNNNN is a particularly useful comparison because it remains in the PowerFlex 755 family and has the same 460 A current class.
The primary difference is the voltage class.
The model is associated with a 600 VAC three-phase system and approximately:
- 500 HP LD
- 500 HP ND
- 400 HP HD
It is therefore more suitable for 600 V industrial systems than the 400 V 20G1ALC460JN2NNNNN.
48. 20G1AJF415JN4NNNNN – PowerFlex 755
The 20G1AJF415JN4NNNNN is another high-power PowerFlex 755 model.
It is intended for a higher-voltage industrial power system and provides approximately:
- 690 VAC
- 415 A
- 450 kW LD
- 400 kW ND
- 355 kW HD
- Frame 8
This makes it a useful alternative for plants using 690 V motor systems.
49. Comparison Between the Main 400 V Models
| Model | Current | LD | ND | HD | Best Selection Situation |
|---|---|---|---|---|---|
| 20G1ALC460JN2NNNNN | 460 A | 315 kW | 250 kW | 200 kW | Main 400 V / 460 A choice with local HIM |
| 20G1ALC460JN0NNNNN | 460 A | 315 kW | 250 kW | 200 kW | Similar drive without the JN2 local interface configuration |
| 20G1ALC460JN4NNNNN | 460 A | 315 kW | 250 kW | 200 kW | Similar electrical rating with alternate HIM configuration |
| 20G1ALC540JN2NNNNN | 540 A | 315 kW | 315 kW | 250 kW | Higher current / larger ND application |
| 20G1ALC567JN2NNNNN | 567 A | 355 kW | 315 kW | 250 kW | Higher-power application |
| 20G1ALC650JN2NNNNN | 650 A | 400 kW | 355 kW | 315 kW | Large high-power application |
50. Recommended Applications by Load Type
| Application | Suitability | Important Selection Consideration |
|---|---|---|
| Large Centrifugal Pump | Excellent | LD/ND rating, pump curve |
| Large Cooling Pump | Excellent | Variable flow requirement |
| Large Fan | Excellent | Variable-torque characteristics |
| Large Blower | Excellent | Starting and operating current |
| Conveyor | Very Good | HD rating and acceleration torque |
| Mining Conveyor | Very Good | HD rating, environment |
| Process Pump | Excellent | Motor current and process range |
| Water Treatment | Excellent | Enclosure/environment |
| Wastewater Pump | Excellent | Duty cycle and environment |
| Cement Equipment | Very Good | Load torque and dust environment |
| Crusher | Application dependent | HD rating and starting torque |
| Hoist | Application dependent | Braking and regenerative requirements |
| High-Inertia Machine | Application dependent | Deceleration and braking |
| HVAC Fan | Excellent | Variable-torque operation |
| Industrial Mixer | Good | Torque characteristics |
| Material Handling | Very Good | Acceleration and overload |
| General Process Machinery | Very Good | Duty classification |
51. Pump Applications
For pump systems, the drive can regulate motor speed according to the required flow and pressure.
This can be particularly useful in large systems where process demand varies significantly throughout the day.
Potential benefits include:
- Better flow control
- Reduced dependence on throttling
- Flexible operating points
- Smooth acceleration
- Smooth deceleration
- Centralized monitoring
- Network-based control
- Easier operating-status feedback
52. Fan Applications
Fan systems frequently benefit from variable-speed operation.
The 20G1ALC460JN2NNNNN can be used for large fans where the motor current and duty rating are appropriate.
Potential applications include:
- Industrial ventilation
- Furnace exhaust
- Boiler ventilation
- Cooling systems
- Process ventilation
- Dust collection
- Large air-handling systems
53. Conveyor Applications
For conveyor systems, the most important issue is usually torque rather than simply motor horsepower.
Engineers should evaluate:
- Conveyor belt weight
- Starting load
- Incline
- Acceleration time
- Motor torque
- Gearbox ratio
- Maximum speed
- Emergency-stop behavior
- Braking requirement
The HD rating should be used where the application requires the corresponding overload capability.
54. Large Motor Control
One of the strongest reasons to select this model is the ability to control a very large motor using a single high-power drive.
This can simplify:
- Control architecture
- Motor-speed management
- Network integration
- Diagnostics
- Operator access
- Maintenance procedures
However, large-drive installations also require more careful attention to electrical protection, grounding, cable selection, harmonic considerations, thermal management, and cabinet construction.
55. Maintenance Advantages
The JN2 local HIM is useful for maintenance personnel.
During troubleshooting, technicians can work directly at the drive and inspect operating information without relying exclusively on the plant control system.
This can reduce troubleshooting time during:
- Motor startup
- Drive trips
- Communication problems
- Overcurrent events
- Speed-reference problems
- Parameter problems
- Maintenance testing
56. Spare-Parts and Plant Standardization
A plant that already uses the PowerFlex 750-Series can benefit from standardizing drive architecture.
Common platform standardization can simplify:
- Technician training
- Parameter-management procedures
- Troubleshooting
- Spare-parts planning
- Engineering documentation
- Network configuration
- Maintenance procedures
This is particularly valuable in large facilities with many variable-frequency drives.
57. Important Braking Consideration
Because this configuration specifies no dynamic braking, the braking requirement should be reviewed before ordering the drive.
If the application has:
- High inertia
- Short stopping time
- Frequent stopping
- Rapid deceleration
- Overhauling load
- Vertical movement
then the engineer should evaluate the required braking energy.
This is especially important for conveyors, hoists, centrifuges, and other high-inertia equipment.
58. Environmental Considerations
The basic configuration is IP20 / NEMA Type 1.
Therefore, the electrical installation should provide suitable environmental protection.
Particular attention should be paid to:
- Water
- Condensation
- Dust
- Conductive contamination
- Corrosive gases
- Excessive ambient temperature
- Restricted airflow
The drive should normally be installed in a properly engineered electrical environment rather than directly exposed to harsh outdoor conditions.
59. Cooling Maintenance
The cooling system is an important maintenance point.
The airflow path and fan system should be inspected periodically.
Maintenance personnel should monitor:
- Fan operation
- Airflow
- Cabinet temperature
- Dust accumulation
- Filter condition where applicable
- Fan noise
- Abnormal vibration
- Thermal alarms
A blocked airflow path can raise component temperature and reduce operating reliability.
60. Installation Planning
Before delivery, the installation team should confirm:
- Doorway dimensions
- Transport route
- Lifting equipment
- Floor loading
- Cabinet anchoring
- Cable entry
- Cable bending radius
- Ventilation
- Maintenance access
- Electrical clearances
- Control-network wiring
- Grounding arrangement
At approximately 623 kg for the basic Frame 8 reference configuration, this is a serious mechanical installation project.
61. Procurement Checklist
When purchasing 20G1ALC460JN2NNNNN, the following points should be checked carefully:
| Item | Required Confirmation |
|---|---|
| Catalog Number | 20G1ALC460JN2NNNNN |
| Voltage | 400 VAC |
| Phase | Three-phase |
| Current | 460 A |
| LD Rating | 315 kW |
| ND Rating | 250 kW |
| HD Rating | 200 kW |
| Frame | 8 |
| Cooling | Forced Air |
| Input | AC with Precharge |
| DC Terminals | None |
| Dynamic Braking | None |
| Filtering | Filtered |
| CM Jumper | Installed |
| Network | Embedded EtherNet/IP |
| HIM | Enhanced LCD Full Numeric |
| HIM Style | Handheld / Local |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet Depth | 800 mm class |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm |
| Approx. Depth | 600 / 800 mm depending on configuration |
| Approx. Weight | 623 kg |
| Application Duty | Must be confirmed |
| Braking | Must be evaluated separately |
62. Overall Product Assessment
The Allen-Bradley 20G1ALC460JN2NNNNN is a high-capacity industrial AC drive intended for large three-phase motors.
Its combination of 460 A current capability, 315 kW LD rating, 250 kW ND rating, 200 kW HD rating, Frame 8 construction, forced-air cooling, embedded EtherNet/IP, filtered AC input, and enhanced full-numeric local HIM makes it particularly suitable for large industrial automation projects.
Its strongest application areas are large pumps, fans, blowers, conveyors, process equipment, water systems, material-handling systems, and other industrial machinery requiring high-power variable-speed control.
The JN2 configuration is especially attractive when local operator access is important.
The enhanced LCD full-numeric HIM provides a practical interface for commissioning, maintenance, diagnostics, and local testing.
At the same time, the absence of an internal dynamic-braking transistor means that applications involving rapid deceleration or substantial regenerative energy must be reviewed separately.
The IP20/NEMA Type 1 construction also means that the installation environment must be properly controlled.
From a mechanical standpoint, the Frame 8 equipment is large and heavy. A basic Frame 8 reference is approximately 2453 mm high, 600 mm wide, 600 or 800 mm deep, and 623 kg, so transportation, floor loading, cabinet access, lifting, and maintenance space should all be included in the project design.
For a 400 VAC industrial plant requiring a large PowerFlex 755 drive around the 460 A class and requiring a local enhanced operator interface, 20G1ALC460JN2NNNNN is a strong fit.
The closest comparisons are the 20G1ALC460JN0NNNNN, 20G1ALC460JN4NNNNN, 20G1ALC540JN2NNNNN, 20G1ALC567JN2NNNNN, and 20G1ALC650JN2NNNNN.
For broader brand-level comparisons, the 25B-D030N114, 25C-D030N114, 20F1AND302JA0NNNNN, 20G1AJE460JN4NNNNN, and 20G1AJF415JN4NNNNN provide useful reference points across compact, medium, and high-power drive applications.
In practical engineering terms, the most important selection criteria remain the motor’s actual full-load current, required duty class, load torque, acceleration and deceleration requirements, braking requirements, environmental conditions, cooling arrangement, network architecture, and final cabinet configuration.
The catalog number should therefore be matched against the motor nameplate and the complete machine-load profile before final purchase and installation.