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Allen-Bradley 20G1ALC460JN0NNNNN PowerFlex 755 AC Drive

1. Product Introduction

The Allen-Bradley 20G1ALC460JN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications requiring high current capacity, three-phase 400 VAC operation, variable-speed control, industrial networking, and cabinet-mounted installation.

It belongs to the PowerFlex 750-Series and is part of the PowerFlex 755 AC drive family.

The drive is configured for 400 VAC, three-phase power and has a nominal output-current class of 460 A.

Its principal motor-power ratings are:

• 315 kW Light Duty
• 250 kW Normal Duty
• 200 kW Heavy Duty

The model uses a large Frame 8 power architecture and an IP20 / NEMA Type 1, 800 mm deep MCC-style enclosure.

The configuration includes embedded EtherNet/IP, forced-air cooling, AC input with precharge, no DC terminals, filtered input, CM jumper installed, no dynamic braking, and no local HIM.

This combination makes the drive suitable for large pumps, fans, blowers, conveyors, material-handling systems, process machinery, water-treatment equipment, and other large industrial variable-speed motor applications.

The current configuration is an active PowerFlex 755 model and is the direct replacement configuration associated with the earlier 20G1ALC460AN0NNNNN version.

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2. Brand, Product Family, and Series

Category	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 750-Series
Drive Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Catalog Number	20G1ALC460JN0NNNNN
Voltage Class	400 VAC
Phase	Three Phase
Nominal Output Current	460 A
Light-Duty Rating	315 kW
Normal-Duty Rating	250 kW
Heavy-Duty Rating	200 kW
Frame Size	Frame 8
Cooling	Forced Air
Enclosure	IP20 / NEMA Type 1
Cabinet Style	MCC Style
Cabinet Depth Class	800 mm
Input Type	AC Input with Precharge
DC Terminals	None
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Main Application	Large Industrial Motor Control

The product configuration identifies the drive as an air-cooled PowerFlex 755 with embedded EtherNet/IP, 400 VAC three-phase input, 460 A output capability, Frame 8 construction, filtered input, CM jumper installed, and no dynamic braking or local HIM.

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3. Main Technical Parameters

Parameter	Specification
Catalog Number	20G1ALC460JN0NNNNN
Brand	Allen-Bradley
Family	PowerFlex
Series	PowerFlex 750-Series
Drive	PowerFlex 755
Drive Type	Air-Cooled AC Drive
Input Voltage	400 VAC
Input Frequency	50 / 60 Hz class industrial supply
Phase	Three Phase
Nominal Output Current	460 A
Light-Duty Rating	315 kW
Normal-Duty Rating	250 kW
Heavy-Duty Rating	200 kW
Frame Size	8
Cooling	Forced Air
Enclosure	IP20 / NEMA Type 1
Cabinet Style	800 mm Deep MCC Style
Input Configuration	AC Input with Precharge
DC Terminals	None
Input Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Local HIM	Blank / No HIM
Network	Embedded EtherNet/IP
Approx. Height	2453 mm
Approx. Width	600 mm
Approx. Depth	800 mm class
Approx. Basic Weight	623 kg
Installation	Floor-Mounted Industrial Cabinet
Typical Duty	LD / ND / HD
Typical Applications	Pumps, Fans, Blowers, Conveyors, Process Equipment

The catalog configuration is specified as 460 A, 315 kW LD, 250 kW ND, 200 kW HD, 400 VAC, three phase, Frame 8, filtered, CM jumper installed, no dynamic braking, and no HIM.

The mechanical values should be regarded as Frame 8 reference dimensions rather than a substitute for the final configured dimensional drawing. The exact assembled cabinet arrangement can vary depending on the selected options, wiring bay, accessories, and installation configuration.

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4. Electrical Rating

The drive is designed for a 400 VAC three-phase industrial power system.

The nominal current class is 460 A.

The drive provides three principal duty classifications:

Duty	Continuous Current	1-Minute Current	3-Second Current	Motor Power
Light Duty	540 A	594 A	—	315 kW
Normal Duty	460 A	506 A	693 A	250 kW
Heavy Duty	385 A	578 A	693 A	200 kW

The duty-current values are important because the same drive can serve substantially different motor sizes depending on the load profile.

The published PowerFlex selection data lists the 400 VAC Frame 8 460 A configuration with 540 A Light-Duty continuous current, 460 A Normal-Duty continuous current, and 385 A Heavy-Duty continuous current, with the corresponding 315/250/200 kW motor ratings.

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5. Light-Duty Operation — 315 kW

The maximum listed Light-Duty motor rating is 315 kW.

This rating is particularly relevant to variable-torque equipment.

Typical examples include:

• Centrifugal pumps.
• Centrifugal fans.
• Cooling-water pumps.
• Large ventilation systems.
• Circulation pumps.
• Large blowers.

Light-Duty applications generally place less continuous torque demand on the drive than constant-torque or heavy-duty machinery.

For this reason, the drive can support a higher motor-power rating in Light-Duty operation.

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6. Normal-Duty Operation — 250 kW

The Normal-Duty motor rating is 250 kW.

This rating is suitable for a broad range of industrial machinery.

Typical applications include:

• Process pumps.
• Industrial fans.
• Conveyors.
• Blowers.
• Material-handling equipment.
• General rotating machinery.
• Industrial utility systems.

The motor’s actual nameplate current should always be compared against the drive’s current rating before final selection.

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7. Heavy-Duty Operation — 200 kW

The Heavy-Duty motor rating is 200 kW.

Heavy-Duty operation is more appropriate for loads requiring greater torque or higher overload capability.

Typical applications may include:

• Heavy conveyors.
• High-inertia machinery.
• Material-handling systems.
• Process machinery.
• Equipment with frequent acceleration.
• Machinery with high starting torque.

The distinction between 250 kW Normal Duty and 200 kW Heavy Duty is significant.

A 200 kW heavy-duty application can impose greater electrical and thermal demand than a 250 kW variable-torque pump.

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8. Product Configuration

The main configuration of 20G1ALC460JN0NNNNN can be summarized as follows:

Configuration Item	Model Configuration
Drive Family	PowerFlex 755
Voltage	400 VAC
Phase	3 Phase
Current	460 A
LD Rating	315 kW
ND Rating	250 kW
HD Rating	200 kW
Frame	8
Cooling	Forced Air
Enclosure	IP20 / NEMA Type 1
Cabinet	800 mm Deep MCC Style
Input	AC Input with Precharge
DC Terminals	None
Filter	Installed / Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP

This is a large industrial cabinet configuration rather than a compact wall-mounted drive.

The physical size and weight should therefore be considered at the beginning of the electrical-room design.

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9. PowerFlex 755 Series

The PowerFlex 755 is positioned within the higher-power section of the PowerFlex 750-Series.

It is intended for applications requiring:

• High motor power.
• High current.
• Flexible motor control.
• Network communication.
• Industrial diagnostics.
• Centralized automation.
• Large cabinet construction.
• Multiple motor-control options.

Typical applications include:

• Pumps.
• Fans.
• Blowers.
• Conveyors.
• Material handling.
• Mining equipment.
• Water systems.
• Process equipment.
• Manufacturing equipment.

The 20G1ALC460JN0NNNNN is a particularly large 400 VAC configuration within this family.

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10. Embedded EtherNet/IP

One of the major features of this model is embedded EtherNet/IP.

This allows the drive to be incorporated into an industrial automation network without relying on a separate basic communication interface for normal network integration.

A typical architecture can be:

PLC / DCS

↓

Industrial Ethernet

↓

PowerFlex 755

↓

400 VAC Motor

↓

Pump / Fan / Conveyor / Process Equipment

Typical information exchanged can include:

• Start command.
• Stop command.
• Speed reference.
• Frequency reference.
• Current.
• Frequency.
• Drive status.
• Fault information.
• Alarm information.
• Diagnostic information.

This makes the model suitable for large plants where motor control is centralized.

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11. Blank / No HIM Configuration

The model is configured with Blank / No HIM.

This means there is no local operator keypad included as part of the specified catalog configuration.

This arrangement is useful for systems where the drive is controlled through:

• PLC.
• DCS.
• SCADA.
• Remote HMI.
• Plant control system.
• Industrial Ethernet.

For a large plant, centralized operation can be more convenient than requiring an operator to access each individual drive cabinet.

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12. Remote Operation

The absence of a local HIM is particularly suitable for centralized control.

A typical system could be:

Operator Station

↓

SCADA / HMI

↓

PLC / DCS

↓

EtherNet/IP

↓

20G1ALC460JN0NNNNN

↓

400 VAC Motor

This arrangement is common for:

• Water plants.
• Mining systems.
• Cement plants.
• Manufacturing facilities.
• Process plants.
• Large pumping stations.

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13. Filtered Input

The drive uses a filtered configuration.

Filtering is important in a variable-frequency-drive system because high-frequency components can be produced by the switching process.

Overall EMC performance depends on the complete installation.

Important factors include:

• Power-system grounding.
• Motor-cable construction.
• Cable length.
• Cable shielding.
• Cable routing.
• Cabinet grounding.
• Motor grounding.
• Control-cable separation.
• Installation practices.

The drive’s filtering should therefore be considered as one part of the overall electrical design.

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14. CM Jumper Installed

The CM jumper is installed in this configuration.

This is an important distinction from the previous AN0 configuration of the same basic drive class.

The CM configuration affects common-mode electrical behavior.

It should be considered together with:

• Power-system grounding.
• Transformer configuration.
• Grounding method.
• Motor insulation.
• Motor-cable length.
• EMC requirements.
• Plant electrical standards.

The CM jumper configuration should be verified against the project’s electrical-system design before commissioning.

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15. AC Input with Precharge

The drive uses AC input with precharge.

A high-power AC drive contains substantial DC-link capacitance.

When power is applied, these capacitors must be charged in a controlled manner.

The precharge architecture manages this initial charging process.

For a Frame 8 drive, this is an important part of the input-power structure.

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16. No DC Terminals

The model is configured with no DC terminals.

It is therefore primarily intended for conventional AC-fed motor-drive systems.

Typical applications include:

• Pumps.
• Fans.
• Blowers.
• Conveyors.
• Process machinery.
• Material handling.
• Industrial utilities.
• Manufacturing equipment.

This differs from configurations intended for an external common DC bus.

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17. Dynamic Braking — None

The model is configured with no dynamic braking.

This is perfectly suitable for many applications such as:

• Centrifugal pumps.
• Centrifugal fans.
• Circulation systems.
• Blowers.

However, braking requirements should be carefully evaluated for:

• High-inertia equipment.
• Rapid stopping.
• Downhill conveyors.
• Large rotating masses.
• Frequent acceleration/deceleration.
• Regenerative loads.

During deceleration, mechanical energy can be returned to the drive DC bus.

If the regenerated energy is significant, a separate braking or regenerative solution may be required.

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18. Forced-Air Cooling

The PowerFlex 755 uses forced-air cooling for this large Frame 8 configuration.

At several hundred kilowatts of motor capacity, thermal management becomes an important part of the installation.

The electrical room should provide:

• Adequate airflow.
• Suitable room temperature.
• Correct cabinet clearances.
• Clean ventilation paths.
• Cooling-fan maintenance.
• Appropriate HVAC capacity.

When multiple Frame 8 drives are installed together, their combined heat generation should be included in the HVAC calculation.

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19. Frame 8 Construction

The drive uses Frame 8 construction.

This is a large industrial drive format.

It is considerably larger than compact drives used for small motors.

Installation planning should consider:

• Floor space.
• Cabinet height.
• Cabinet width.
• Cabinet depth.
• Cable entry.
• Door clearance.
• Maintenance access.
• Transportation route.
• Lifting equipment.
• Floor loading.

The 400 VAC Frame 8 family is documented as including the 460 A, 540 A, 567 A, 650 A, 750 A and other large-current configurations.

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20. Mechanical Parameters

Mechanical Parameter	Approximate Specification
Catalog Number	20G1ALC460JN0NNNNN
Frame	8
Enclosure	IP20 / NEMA Type 1
Cabinet Style	MCC Style
Cabinet Depth Class	800 mm
Approx. Height	2453 mm
Approx. Width	600 mm
Approx. Depth	800 mm class
Approx. Basic Weight	623 kg
Cooling	Forced Air
Mounting	Floor Mounted
Local HIM	None
Input Filter	Filtered

The approximately 623 kg weight is a Frame 8 reference value.

Actual shipping weight can vary depending on cabinet configuration, accessories, options, wiring arrangements, and other installed components.

For foundation, lifting, transportation, and final mechanical-layout work, the configured dimensional drawing should be used.

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21. IP20 / NEMA Type 1 Enclosure

The model uses an IP20 / NEMA Type 1 cabinet configuration.

This makes it more suitable for a controlled electrical environment than for direct outdoor exposure.

Typical locations include:

• Electrical rooms.
• MCC rooms.
• Drive rooms.
• Industrial control rooms.
• Protected equipment areas.
• Indoor process-control installations.

The cabinet should not be treated as a weatherproof outdoor enclosure.

Where the installation environment contains significant water spray, condensation, corrosive chemicals, or outdoor exposure, additional enclosure protection may be required.

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22. Large Pump Applications

Large pumps are among the strongest applications for this drive.

Potential applications include:

• Raw-water pumps.
• Process-water pumps.
• Cooling-water pumps.
• Transfer pumps.
• Industrial circulation pumps.
• High-volume pumps.
• Wastewater pumps.
• Utility pumps.

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

A typical control loop can be:

Pressure / Flow Sensor

↓

PLC

↓

EtherNet/IP

↓

PowerFlex 755

↓

Pump Motor

This provides a flexible method of controlling process flow or pressure.

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23. Fan Applications

Large fans are also well suited to variable-frequency control.

Potential applications include:

• Industrial ventilation.
• Furnace fans.
• Exhaust fans.
• Cooling fans.
• Dust-collection systems.
• Process-air systems.
• Combustion-air systems.
• Large industrial HVAC systems.

The Light-Duty rating of 315 kW is particularly useful for large variable-torque fan loads.

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24. Blower Applications

The model can also be used for large industrial blowers.

Potential applications include:

• Aeration blowers.
• Process-air blowers.
• Combustion-air blowers.
• Pneumatic conveying.
• Industrial ventilation.
• Dust-control systems.
• Process-gas systems.

Variable-speed operation allows the blower to respond to changing process demand.

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25. Conveyor Applications

Large conveyors often require controlled acceleration and deceleration.

The drive can provide controlled motor speed and acceleration.

This can reduce mechanical shock on:

• Gearboxes.
• Couplings.
• Bearings.
• Shafts.
• Conveyor belts.
• Pulleys.

Potential applications include:

• Mining conveyors.
• Cement conveyors.
• Aggregate conveyors.
• Bulk-material conveyors.
• Port material-handling systems.
• Industrial production conveyors.

For downhill conveyors or high-inertia loads, braking calculations should be performed separately.

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26. Mining Applications

The drive can be considered for a range of mining applications using 400 VAC motors.

Potential applications include:

• Mine ventilation.
• Mine dewatering.
• Large conveyors.
• Material handling.
• Processing equipment.
• Large pumps.
• Large fans.

The Frame 8 architecture is suitable for applications where motor power and current requirements exceed the range of smaller VFDs.

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27. Cement Industry Applications

Cement plants frequently require large variable-speed motors.

The drive can be considered for:

• Process fans.
• Dust-collection fans.
• Cement conveyors.
• Material-handling systems.
• Cooling systems.
• Large pumps.
• Blowers.
• Plant utility equipment.

The PowerFlex 755 platform also makes it practical to standardize different motor ratings around a common drive architecture.

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28. Water and Wastewater Applications

Large water and wastewater systems can contain numerous high-power motors.

Potential applications include:

• Raw-water pumping.
• High-lift pumping.
• Transfer pumping.
• Process-water pumping.
• Cooling-water circulation.
• Wastewater pumping.
• Aeration blowers.
• Large circulation systems.

The drive can receive speed references from the plant control system based on:

• Flow.
• Pressure.
• Tank level.
• Process demand.

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29. Industrial Process Applications

The model is suitable for large process machinery requiring variable-speed motor control.

Potential equipment includes:

• Large pumps.
• Fans.
• Blowers.
• Conveyors.
• Material-handling systems.
• Rotating process machinery.
• Utility equipment.
• Production machinery.

The final selection should always be based on the actual motor current and mechanical load rather than only the nominal motor kW.

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30. Material-Handling Applications

Material-handling systems can benefit from the drive’s combination of high current capacity and network control.

Potential applications include:

• Bulk-material conveyors.
• Transfer conveyors.
• Production-line conveyors.
• Mining material handling.
• Aggregate handling.
• Cement handling.
• Industrial logistics equipment.

The ability to control acceleration and speed can help coordinate the drive with upstream and downstream process equipment.

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31. Main Product Advantages

31.1 High Current Capability

The 460 A current class provides substantial capacity for large industrial motors.

This places the model well above compact machine-level VFDs.

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31.2 315 kW Light-Duty Capacity

The 315 kW Light-Duty rating makes the model particularly useful for large variable-torque loads.

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31.3 250 kW Normal-Duty Capacity

The 250 kW Normal-Duty rating provides a broad range of applications for general industrial machinery.

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31.4 200 kW Heavy-Duty Capacity

The 200 kW Heavy-Duty rating allows the drive to serve more demanding torque applications.

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31.5 Embedded EtherNet/IP

Embedded EtherNet/IP simplifies integration with centralized industrial automation.

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31.6 Frame 8 High-Power Architecture

The Frame 8 platform provides a robust physical and electrical structure for large motors.

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31.7 Forced-Air Cooling

Forced-air cooling is appropriate for the thermal requirements of high-power industrial operation.

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31.8 Filtered Input

The filtered configuration supports the electrical requirements of many industrial installations.

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31.9 CM Jumper Installed

The installed CM jumper provides a defined configuration for common-mode electrical behavior.

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31.10 No Local HIM

For centralized PLC, DCS, SCADA, and HMI architectures, the no-HIM configuration can be a practical choice.

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32. Advantages for Centralized Plant Control

The product is particularly suitable for facilities where many large motors are controlled from a central location.

A typical structure can be:

Control Level	Typical Equipment
Supervisory	SCADA
Operator	Plant HMI
Control	PLC / DCS
Network	Industrial Ethernet
Drive	PowerFlex 755
Motor	400 VAC Motor
Process	Pump / Fan / Conveyor

This allows the drive to become an integrated part of the plant rather than an isolated motor controller.

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33. Advantages for Large Pump Stations

A large pump station may contain several high-power motors.

Using variable-speed drives allows the control system to adjust motor speed according to actual demand.

Potential benefits include:

• Flexible pressure control.
• Flexible flow control.
• Controlled starting.
• Controlled stopping.
• Reduced mechanical stress.
• Centralized monitoring.
• Alarm management.
• Networked diagnostics.

The 20G1ALC460JN0NNNNN is well suited to this type of architecture.

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34. Advantages for Large Fan Systems

Large industrial fans often operate at variable process demand.

The drive can provide:

• Adjustable airflow.
• Controlled acceleration.
• Controlled deceleration.
• Centralized control.
• Network monitoring.
• Process-based speed regulation.

This makes the drive particularly attractive for ventilation and process-air applications.

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35. Advantages for Conveyors

The PowerFlex 755 architecture can provide:

• Controlled acceleration.
• Adjustable conveyor speed.
• Controlled stopping.
• Network integration.
• Motor diagnostics.
• Centralized control.

This is useful for large conveyors in mining, cement, aggregate, ports, and industrial material handling.

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36. Electrical-Room Installation

Because the drive is a large Frame 8 cabinet, installation planning should be performed before equipment delivery.

Important factors include:

• Cabinet dimensions.
• Door access.
• Front clearance.
• Cable routing.
• Incoming power.
• Motor feeder.
• Grounding.
• Ventilation.
• HVAC.
• Floor loading.
• Maintenance access.
• Transportation route.

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37. Floor Loading and Weight

The approximate Frame 8 reference weight is 623 kg.

This is significant enough that floor loading should be checked.

The installation team should evaluate:

• Static floor load.
• Cabinet anchoring.
• Transportation loads.
• Forklift capacity.
• Lifting arrangements.
• Foundation conditions.

The final shipping weight should be confirmed from the actual configured equipment documentation.

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38. Transportation Considerations

The approximate cabinet height is around 2453 mm.

Transportation planning should therefore consider:

• Door height.
• Door width.
• Corridor width.
• Turning radius.
• Ceiling clearance.
• Forklift capacity.
• Lifting equipment.
• Cabinet center of gravity.

A Frame 8 drive should be treated as heavy industrial switchgear-type equipment for transportation planning.

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39. Cooling and HVAC

The forced-air cooling system requires sufficient air movement.

The installation should provide:

• Suitable ambient temperature.
• Adequate room ventilation.
• Clean air.
• Appropriate cabinet clearances.
• Cooling-fan maintenance.
• Sufficient HVAC capacity.

When multiple large drives are installed in the same electrical room, the total heat load can become substantial.

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40. Maintenance Considerations

Routine maintenance can include:

• Cooling-fan inspection.
• Airflow inspection.
• Cabinet cleanliness.
• Electrical connection checks.
• Grounding checks.
• Network communication checks.
• Motor-current monitoring.
• Fault-history review.
• Environmental inspection.
• Internal component inspection.

Because this model has no local HIM, maintenance personnel may normally use the plant control system or an external engineering interface for drive diagnostics and parameter access.

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41. Application Selection Guide

Application	Duty	Suitability
Large Centrifugal Pump	Light Duty	Excellent
Raw-Water Pump	Light / Normal	Excellent
Process-Water Pump	Normal	Excellent
Cooling-Water Pump	Light / Normal	Excellent
Large Centrifugal Fan	Light Duty	Excellent
Industrial Ventilation	Light / Normal	Excellent
Large Blower	Light / Normal	Excellent
Aeration Blower	Light / Normal	Very Good
Large Conveyor	Normal / Heavy	Very Good
Mining Conveyor	Normal / Heavy	Very Good
Cement Conveyor	Normal / Heavy	Very Good
Bulk Material Handling	Normal / Heavy	Very Good
Industrial Wastewater	Light / Normal	Excellent
Process Machinery	Normal / Heavy	Very Good
High-Inertia Equipment	Heavy	Engineering Review Required
Rapid-Stop Equipment	Special	Braking Review Required
Regenerative Load	Special	Regenerative Review Required

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42. Five Closely Related Models

The following models are suitable related choices within the PowerFlex 755 family.

Model	Voltage	Current	LD	ND	HD	Frame	Main Difference
20G1ALC460JN4NNNNN	400 VAC	460 A	315 kW	250 kW	200 kW	8	Enhanced LCD / Full Numeric HIM
20G1ALC540JN0NNNNN	400 VAC	540 A	315 kW	315 kW	250 kW	8	Higher current / ND capacity
20G1ALC567JN0NNNNN	400 VAC	567 A	355 kW	315 kW	250 kW	8	Higher LD capacity
20G1ALC650JN0NNNNN	400 VAC	650 A	400 kW	355 kW	315 kW	8	Higher power class
20G1ALE460JN0NNNNN	600 VAC	460 A	500 HP	500 HP	400 HP	8	600 VAC version

The 400 VAC selection guide lists the 460 A, 540 A, 567 A, and 650 A configurations as Frame 8 PowerFlex 755 models, with increasing current and motor-power capability.

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43. Closest Replacement — 20G1ALC460JN4NNNNN

The 20G1ALC460JN4NNNNN is an especially useful related model.

It retains the same basic:

• 400 VAC voltage class.
• 460 A current class.
• 315 kW LD rating.
• 250 kW ND rating.
• 200 kW HD rating.
• Frame 8 construction.

The main practical difference is the local operator-interface configuration.

For applications where technicians need local access to the drive, the JN4 configuration can be more convenient.

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44. Higher-Capacity 540 A Version

The 20G1ALC540JN0NNNNN provides a higher current class.

Its approximate ratings are:

• 585 A Light-Duty continuous.
• 540 A Normal-Duty continuous.
• 456 A Heavy-Duty continuous.
• 315 kW Light Duty.
• 315 kW Normal Duty.
• 250 kW Heavy Duty.

This model is suitable where the motor requires more current than the 460 A configuration can provide.

The 400 VAC Frame 8 selection table identifies the 540 A model as a 315 kW LD / 315 kW ND / 250 kW HD configuration.

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45. Higher-Capacity 567 A Version

The 20G1ALC567JN0NNNNN provides another step upward.

Its approximate motor ratings are:

• 355 kW Light Duty.
• 315 kW Normal Duty.
• 250 kW Heavy Duty.

It is useful for applications requiring more capacity than the 460 A model.

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46. 650 A Version

The 20G1ALC650JN0NNNNN is a larger 400 VAC Frame 8 configuration.

It is suitable for applications requiring approximately:

• 400 kW Light Duty.
• 355 kW Normal Duty.
• 315 kW Heavy Duty.

This model can be considered for larger pumps, fans, conveyors, and process equipment.

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47. 600 VAC Alternative

The 20G1ALE460JN0NNNNN is a related PowerFlex 755 configuration with the same nominal current class but a different voltage class.

It is intended for 600 VAC motor systems rather than 400 VAC systems.

This is an important distinction.

The two models should not be substituted simply because both are rated around 460 A.

The motor and plant power system determine which voltage class is appropriate.

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48. Five Popular Allen-Bradley Models

Model	Series	Voltage	Current / Capacity	Motor Rating	Frame	Protection	Typical Application
25B-D030N114	PowerFlex 525	380–480 VAC	30 A	Approx. 15 kW ND / 11 kW HD	D	IP20	Compact machinery
25C-D030N114	PowerFlex 527	380–480 VAC	30 A	Approx. 15 kW ND / 11 kW HD	D	IP20	Networked machine control
20F1AND302JA0NNNNN	PowerFlex 753	480 VAC	302 A	Approx. 250 HP ND / 200 HP HD	7	IP20/IP00	Large industrial machinery
20G1AJE460JN4NNNNN	PowerFlex 755	600 VAC	460 A	Approx. 500 HP LD / 500 HP ND / 400 HP HD	8	IP54	Large 600 VAC motors
20G1AJF415JN4NNNNN	PowerFlex 755	690 VAC	415 A	450 kW LD / 400 kW ND / 355 kW HD	8	IP54	Large 690 VAC motors

These five models represent different areas of the Allen-Bradley variable-frequency-drive range.

The PowerFlex 525 and 527 are primarily compact machine drives.

The PowerFlex 753 is intended for larger industrial equipment.

The PowerFlex 755 configurations are designed for large motor systems and more demanding industrial applications.

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49. 25B-D030N114

The 25B-D030N114 is a PowerFlex 525 drive for smaller industrial equipment.

Typical applications include:

• Small pumps.
• Fans.
• Conveyors.
• Packaging machines.
• Machine tools.
• Small process equipment.

Compared with the 460 A PowerFlex 755, this model is substantially smaller and belongs to a completely different power range.

Its main advantage is compact installation.

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50. 25C-D030N114

The 25C-D030N114 belongs to the PowerFlex 527 family.

It is designed for networked machine-control applications.

Typical applications include:

• Automated conveyors.
• Packaging.
• Production machines.
• Machine automation.
• Material handling.

It is a useful option when the application requires integrated network control but does not require the large power capacity of the PowerFlex 755.

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51. 20F1AND302JA0NNNNN

The 20F1AND302JA0NNNNN is a PowerFlex 753 configuration.

It is suitable for larger 480 VAC industrial motors.

Typical applications include:

• Pumps.
• Fans.
• Conveyors.
• Process machinery.
• Material handling.
• Industrial utility systems.

It provides a useful intermediate option between compact drives and very large Frame 8 PowerFlex 755 drives.

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52. 20G1AJE460JN4NNNNN

The 20G1AJE460JN4NNNNN is a PowerFlex 755 model for the 600 VAC class.

It is suitable for large 600 VAC motors.

Potential applications include:

• Large pumps.
• Fans.
• Blowers.
• Conveyors.
• Mining systems.
• Process equipment.

Its Frame 8 architecture makes it suitable for large industrial installations.

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53. 20G1AJF415JN4NNNNN

The 20G1AJF415JN4NNNNN is a 690 VAC PowerFlex 755 configuration.

Its principal ratings are approximately:

• 450 kW Light Duty.
• 400 kW Normal Duty.
• 355 kW Heavy Duty.

It is a strong alternative when the motor system uses 690 VAC rather than 400 VAC.

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54. Comparison of Popular Models

Model	Voltage	Current	LD	ND	HD	Primary Application
25B-D030N114	380–480 VAC	30 A	—	~15 kW	~11 kW	Compact machinery
25C-D030N114	380–480 VAC	30 A	—	~15 kW	~11 kW	Networked machinery
20F1AND302JA0NNNNN	480 VAC	302 A	—	~250 HP	~200 HP	Large industrial equipment
20G1AJE460JN4NNNNN	600 VAC	460 A	~500 HP	~500 HP	~400 HP	Large 600 VAC motors
20G1AJF415JN4NNNNN	690 VAC	415 A	450 kW	400 kW	355 kW	Large 690 VAC motors

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55. Product Advantages in Different Industries

Industry	Main Advantage
Water Treatment	Variable-speed pump control
Wastewater	Pump and blower control
Mining	Large motor and conveyor control
Cement	Large fans and conveyors
Steel	Process fans and cooling systems
Manufacturing	Large process machinery
Chemical Processing	Pump and blower control
Material Handling	Controlled conveyor operation
Industrial Utilities	Large pump and fan control
Infrastructure	Centralized motor automation

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56. Pump Control Benefits

For a large pump, the drive can provide controlled speed rather than simply switching the motor on and off.

This can improve process flexibility.

Typical control variables include:

• Pressure.
• Flow.
• Tank level.
• Process demand.

The drive can receive the required speed command through the plant control system.

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57. Fan Control Benefits

For a centrifugal fan, variable-speed control can provide a direct method of adjusting airflow.

The drive can be used with:

• Pressure control.
• Airflow control.
• Temperature control.
• Process-demand control.

The 315 kW Light-Duty capability is particularly useful for large variable-torque fan applications.

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58. Conveyor Control Benefits

For conveyors, the drive can provide:

• Controlled acceleration.
• Controlled speed.
• Controlled stopping.
• Networked monitoring.
• Process synchronization.

This is particularly valuable for large conveyor systems where mechanical shock needs to be controlled.

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59. Process-System Integration

The drive can be integrated into a larger automation architecture.

A typical process-control structure is:

Sensors

↓

PLC / DCS

↓

EtherNet/IP

↓

PowerFlex 755

↓

Motor

↓

Mechanical Process

The drive therefore becomes part of the control system rather than functioning as an isolated speed controller.

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60. Maintenance and Troubleshooting

The no-HIM configuration makes centralized diagnostics particularly important.

Typical troubleshooting activities can include:

• Checking drive status through the control network.
• Checking active faults.
• Checking alarms.
• Reviewing motor current.
• Checking output frequency.
• Checking communication status.
• Inspecting cooling fans.
• Inspecting airflow.
• Checking electrical connections.
• Checking grounding.

For a large Frame 8 installation, maintenance procedures should be planned before commissioning.

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61. Engineering Selection Checklist

Selection Item	Requirement
Supply Voltage	400 VAC
Supply Phase	3 Phase
Motor Voltage	Must Match
Motor Current	Must Be Within Drive Rating
Motor Power	Check Against Duty Rating
Duty Type	LD / ND / HD
Starting Torque	Verify
Continuous Torque	Verify
Acceleration Time	Verify
Deceleration Time	Verify
Load Inertia	Verify
Regenerative Energy	Evaluate
Braking Requirement	Evaluate
Ambient Temperature	Verify
Installation Altitude	Verify
Motor Cable Length	Verify
EMC Requirements	Verify
Grounding System	Verify
CM Jumper	Installed
Cooling	Forced Air
Enclosure	IP20 / Type 1
Communication	Embedded EtherNet/IP
Local HIM	Not Included

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62. Important Braking Consideration

The model does not include standard dynamic braking.

This is normally acceptable for many variable-torque applications.

However, applications involving significant stored mechanical energy require additional analysis.

Examples include:

• Large conveyors.
• High-speed rotating machinery.
• Downhill conveyors.
• High-inertia fans.
• Large flywheel systems.
• Frequent rapid stops.
• Regenerative loads.

The braking strategy should be determined during the engineering stage rather than after installation.

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63. Environmental Considerations

The IP20 / NEMA Type 1 configuration is best suited to controlled indoor environments.

The installation should be protected from:

• Direct water.
• Heavy condensation.
• Outdoor weather.
• Corrosive atmospheres.
• Excessive dust.
• Uncontrolled temperature.

Where the environment is harsh, the drive should be installed within an appropriately protected electrical enclosure or electrical room.

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64. Cabinet Planning

The approximate dimensions are significant.

Dimension	Approximate Value
Height	2453 mm
Width	600 mm
Depth	800 mm class
Weight	623 kg
Frame	8

The cabinet height means that transportation and room access should be considered before ordering.

The 623 kg reference weight also means that lifting and floor-loading requirements should be reviewed.

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65. Plant Standardization

A major advantage of using the PowerFlex 755 family is the possibility of standardizing drive architecture across different motor ratings.

A plant could use:

Model	Current	LD	ND	HD
20G1ALC460JN0NNNNN	460 A	315 kW	250 kW	200 kW
20G1ALC540JN0NNNNN	540 A	315 kW	315 kW	250 kW
20G1ALC567JN0NNNNN	567 A	355 kW	315 kW	250 kW
20G1ALC650JN0NNNNN	650 A	400 kW	355 kW	315 kW
20G1ALC750JN0NNNNN	750 A	450 kW	400 kW	315 kW

This type of standardization can simplify:

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

The PowerFlex selection data shows the progressive current and motor-power ratings across these 400 VAC Frame 8 configurations.

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66. Model Selection by Application

Requirement	Recommended Direction
400 VAC, around 460 A	20G1ALC460JN0NNNNN
400 VAC, 460 A with local HIM	20G1ALC460JN4NNNNN
400 VAC, higher ND requirement	20G1ALC540JN0NNNNN
400 VAC, higher LD requirement	20G1ALC567JN0NNNNN
400 VAC, approximately 400 kW LD	20G1ALC650JN0NNNNN
600 VAC motor system	20G1ALE family
690 VAC motor system	20G1ALF family

This is a more useful method of selecting a drive than simply comparing catalog numbers.

The actual motor nameplate and load profile should always determine the final selection.

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67. Main Benefits of the JN0 Configuration

The JN0 version provides several practical benefits.

Centralized Operation

The no-HIM arrangement is suitable for centralized PLC, DCS, and SCADA systems.

Defined CM Configuration

The CM jumper is installed, providing a specific common-mode configuration.

High-Power Capacity

The 460 A output class supports large motors.

Flexible Duty Rating

The drive can be used across 315 kW LD, 250 kW ND, and 200 kW HD applications.

Network Integration

Embedded EtherNet/IP allows the drive to become part of the plant control network.

Industrial Cabinet Construction

Frame 8 and MCC-style construction provide a practical arrangement for large industrial electrical rooms.

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68. Overall Product Advantages

The principal advantages of 20G1ALC460JN0NNNNN can be summarized as:

Advantage	Description
High Current	460 A class
Light-Duty Capacity	315 kW
Normal-Duty Capacity	250 kW
Heavy-Duty Capacity	200 kW
Voltage	400 VAC
Network	Embedded EtherNet/IP
Cooling	Forced Air
Frame	8
Enclosure	IP20 / Type 1
Cabinet	800 mm Deep MCC Style
Filtering	Filtered
CM Configuration	Jumper Installed
Braking	No Dynamic Braking
HIM	No HIM
Input	AC with Precharge
DC Terminals	None
Application Range	Pumps, Fans, Blowers, Conveyors, Process Equipment

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69. Final Technical Summary

Item	Final Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 750-Series
Drive Series	PowerFlex 755
Model	20G1ALC460JN0NNNNN
Lifecycle	Active
Voltage	400 VAC
Phase	Three Phase
Nominal Current	460 A
Light-Duty Rating	315 kW
Normal-Duty Rating	250 kW
Heavy-Duty Rating	200 kW
Frame	8
Cooling	Forced Air
Enclosure	IP20 / NEMA Type 1
Cabinet Style	800 mm Deep MCC Style
Approx. Height	2453 mm
Approx. Width	600 mm
Approx. Depth	800 mm class
Approx. Weight	623 kg
Input	AC Input with Precharge
DC Terminals	None
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Main Applications	Pumps, Fans, Blowers, Conveyors, Process Machinery

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70. Overall Product Assessment

The Allen-Bradley 20G1ALC460JN0NNNNN is a high-capacity industrial PowerFlex 755 AC drive designed for large 400 VAC three-phase motors.

Its 460 A current class provides substantial capacity for industrial motor control, while the three duty classifications allow the same drive platform to be applied to different types of loads.

The maximum listed motor-power ratings are approximately 315 kW for Light Duty, 250 kW for Normal Duty, and 200 kW for Heavy Duty.

This makes the model particularly suitable for large variable-torque equipment such as pumps, fans, and blowers, while also providing capacity for larger conveyors and general industrial machinery when the duty requirements are properly evaluated.

The Frame 8 construction provides a large industrial platform suitable for major electrical-room installations.

The approximately 2453 mm height, 600 mm width, 800 mm cabinet-depth class, and 623 kg reference weight mean that transportation, floor loading, cabinet access, and maintenance clearance should be considered during project planning.

The IP20 / NEMA Type 1 enclosure is intended for a protected electrical environment rather than direct outdoor exposure.

The embedded EtherNet/IP capability is one of the most useful features for modern industrial installations.

It allows the drive to be integrated into a centralized control structure involving PLCs, DCS systems, SCADA, HMIs, and other networked industrial equipment.

The Blank / No HIM configuration is particularly appropriate where operators are expected to control the drive remotely rather than directly from the drive cabinet.

The filtered input and CM jumper installed configuration provide a defined electrical configuration that should be considered together with the plant’s grounding, EMC, motor-cable, and power-distribution design.

The absence of standard dynamic braking is generally acceptable for many pumps, fans, and other variable-torque applications, but high-inertia and regenerative applications require a separate braking assessment.

The model is also an important replacement choice for the earlier 20G1ALC460AN0NNNNN configuration.

The current JN0 model retains the same fundamental 400 VAC, 460 A, Frame 8, 315/250/200 kW LD/ND/HD power class while using the CM jumper installed configuration.

For projects requiring a local operator interface, the 20G1ALC460JN4NNNNN is a more appropriate related configuration.

For larger motors, the 540 A, 567 A, and 650 A versions provide progressively greater capacity.

For different motor-system voltages, the corresponding 600 VAC and 690 VAC PowerFlex 755 families should be considered rather than attempting to substitute a 400 VAC drive.

In practical terms, the 20G1ALC460JN0NNNNN is best described as a 400 VAC, 460 A, three-phase, Frame 8 PowerFlex 755 industrial AC drive with 315 kW Light-Duty, 250 kW Normal-Duty, and 200 kW Heavy-Duty capacity, forced-air cooling, IP20 / NEMA Type 1 MCC-style construction, embedded EtherNet/IP, filtered input, CM jumper installed, AC input with precharge, no DC terminals, no dynamic braking, and no local HIM.

Its strongest application areas are large pumping systems, industrial fans, blowers, conveyors, mining equipment, cement equipment, water and wastewater systems, material handling, and large process machinery.

For a new project, the final drive selection should be based on the actual motor nameplate current, motor voltage, load torque, duty cycle, acceleration and deceleration requirements, regenerative energy, ambient conditions, installation altitude, cable length, grounding system, and required control architecture.

For an existing installation, the model is especially useful as a standardized high-power replacement and as part of a common PowerFlex 755 spare-parts and maintenance strategy.