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The Allen-Bradley 20G1ALC460AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications requiring substantial current capacity, three-phase 400 VAC operation, variable-speed control, network integration, and cabinet-mounted installation.
This model belongs to the PowerFlex 750-Series and specifically to the PowerFlex 755 product family.
The drive is configured for 400 VAC, three-phase input power and provides a nominal output current of 460 A.
Its rated motor-power capability is approximately:
The product uses Frame 8 construction and an IP20 / NEMA Type 1, 800 mm deep MCC-style cabinet arrangement.
The configuration includes embedded EtherNet/IP, forced-air cooling, AC input with precharge, no DC terminals, filtered input, CM jumper removed, no dynamic braking, and no local HIM.
This combination makes the model particularly suitable for large pumps, fans, blowers, conveyors, process equipment, material-handling systems, and other industrial machinery using 400 VAC three-phase motors.
The catalog configuration is a high-capacity PowerFlex 755 packaged drive and was positioned for large industrial motor-control applications rather than compact machine-level applications.
| 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 | 20G1ALC460AN0NNNNN |
| 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 | 800 mm |
| Input Type | AC Input with Precharge |
| DC Terminals | None |
| Filtering | Filtered |
| CM Jumper | Removed |
| Dynamic Braking | None |
| HIM | Blank / No HIM |
| Communication | Embedded EtherNet/IP |
The PowerFlex 755 series is designed for applications where a conventional compact VFD does not provide enough motor power, control flexibility, or system-level integration capability.
The 20G1ALC460AN0NNNNN represents a large Frame 8 configuration within the 400 VAC class.
| Parameter | Specification |
|---|---|
| Catalog Number | 20G1ALC460AN0NNNNN |
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 750-Series |
| Drive Series | PowerFlex 755 |
| Drive Type | Air-Cooled AC Drive |
| Input Voltage | 400 VAC |
| Input Phase | Three Phase |
| Nominal Current | 460 A |
| Light-Duty Motor Rating | 315 kW |
| Normal-Duty Motor Rating | 250 kW |
| Heavy-Duty Motor Rating | 200 kW |
| Frame Size | 8 |
| Cooling Method | Forced Air |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet Style | MCC Style |
| Cabinet Depth | 800 mm |
| Input Configuration | AC Input with Precharge |
| DC Terminals | None |
| Input Filter | Filtered |
| CM Jumper | Removed |
| Dynamic Braking | None |
| Local HIM | Blank / No HIM |
| Communication | Embedded EtherNet/IP |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm |
| Approx. Depth | 800 mm maximum cabinet-depth configuration |
| Approx. Basic Weight | 623 kg |
| Mounting Style | Floor-Mounted MCC-Style Cabinet |
| Cooling | Forced Air |
| Main Application | Large Industrial Motor Control |
The Frame 8 IP20 MCC-style configuration is approximately 2453 mm high, 600 mm wide, and 600 or 800 mm deep, with an approximate weight of 623 kg. These are frame-level mechanical reference values and should be treated as approximate rather than as a substitute for the final dimensional drawing of a configured installation.
The catalog number 20G1ALC460AN0NNNNN represents a specific PowerFlex 755 configuration.
Its principal configuration can be summarized as follows:
| Configuration Item | Specification |
|---|---|
| Product | PowerFlex 755 AC Drive |
| Voltage | 400 VAC |
| Phase | Three Phase |
| Current | 460 A |
| Light Duty | 315 kW |
| Normal Duty | 250 kW |
| Heavy Duty | 200 kW |
| Cooling | Air Cooled / Forced Air |
| Input | AC Input with Precharge |
| DC Terminals | None |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet | 800 mm MCC Style |
| Frame | 8 |
| Filtering | Filtered |
| CM Jumper | Removed |
| Dynamic Braking | None |
| HIM | Blank / No HIM |
| Communication | Embedded EtherNet/IP |
The configuration is designed for permanent industrial installations where the drive is normally installed in an electrical room, MCC area, process-control room, or other controlled industrial environment.
The PowerFlex 755 occupies the high-power section of the PowerFlex 750-Series.
Compared with smaller general-purpose drives, the PowerFlex 755 architecture is better suited to:
The 20G1ALC460AN0NNNNN is therefore more appropriately viewed as a large industrial drive cabinet than as a compact standalone VFD.
The model is designed for a 400 VAC three-phase system.
This voltage class is widely used in industrial power-distribution systems.
The 400 VAC class is suitable for many large industrial motors while maintaining compatibility with common low-voltage industrial distribution architectures.
Typical systems can include:
The final motor selection must always be based on the motor nameplate voltage and current rather than the motor’s nominal kW value alone.
The drive provides a nominal output current rating of 460 A.
This is a substantial current rating and places the model firmly in the large industrial drive category.
A 460 A drive should be selected according to the actual motor operating conditions.
Important factors include:
The motor’s nameplate current is particularly important.
A motor rated at a particular kW value can have different current requirements depending on its design, efficiency, power factor, and operating conditions.
The model provides a 315 kW Light-Duty rating.
This is the highest stated motor-power rating for this configuration.
Light-Duty operation is generally associated with applications where the load has a variable-torque characteristic.
Typical examples include:
For these applications, the 315 kW rating provides substantial motor-control capability.
The 250 kW Normal-Duty rating provides a practical capacity for general industrial machinery.
Typical applications include:
The actual motor full-load current should be compared with the drive current rating before the final selection is made.
The 200 kW Heavy-Duty rating is intended for applications where the motor experiences greater torque demand or a more demanding overload profile.
Potential applications include:
The distinction between Light Duty, Normal Duty, and Heavy Duty is important.
A 200 kW heavy-duty motor application can place a much greater demand on the drive than a 200 kW variable-torque fan.
| Duty Class | Continuous Output | 1-Minute Overload | 3-Second Overload | Motor Rating |
|---|---|---|---|---|
| Light Duty | 460 A | 506 A | Not normally applicable | 315 kW |
| Normal Duty | 435 A | 479 A | 639 A | 250 kW |
| Heavy Duty | 355 A | 533 A | 639 A | 200 kW |
The duty ratings illustrate why drive selection should be based on the actual load profile.
For example, a 250 kW centrifugal pump and a 250 kW high-inertia conveyor do not necessarily impose the same electrical requirements on the drive.
The motor current, torque profile, acceleration requirement, and overload cycle must all be considered.
The PowerFlex 755 architecture incorporates embedded EtherNet/IP communication.
For a large industrial drive, network integration is highly valuable.
The drive can become part of the plant automation network and exchange operating information with the control system.
Typical information can include:
A typical control structure can be:
PLC / DCS
↓
Industrial Ethernet
↓
PowerFlex 755
↓
400 VAC Motor
↓
Pump / Fan / Conveyor / Process Equipment
This architecture is suitable for centralized plant automation.
The model is configured as Blank / No HIM.
This means the drive does not include a local operator interface as part of the specified catalog configuration.
This configuration is particularly suitable when the drive is intended to be operated and monitored through:
The absence of a standard HIM can also be useful in installations where the drive cabinet is not intended to be used as the primary operator station.
Because the model has embedded EtherNet/IP and no standard HIM, a centralized control architecture is a natural application.
A typical system can use:
Operator Station
↓
SCADA / HMI
↓
PLC
↓
EtherNet/IP
↓
20G1ALC460AN0NNNNN
↓
400 VAC Motor
This arrangement is especially useful for large plants containing multiple motors.
Operators can manage several drives from a centralized control room rather than standing beside each individual drive.
The drive uses a filtered configuration.
Filtering is important in large variable-frequency-drive installations because the switching process produces high-frequency electrical components.
Overall electromagnetic compatibility depends on the complete installation.
Important considerations include:
The drive’s filter is therefore one part of the complete EMC design.
The model uses the CM jumper removed configuration.
This is an important distinction from related JN configurations.
The common-mode configuration influences the electrical relationship between the drive’s internal circuitry and ground.
The correct configuration should be selected according to:
The CM configuration should not be changed casually after installation.
It should be evaluated as part of the complete electrical-system design.
The drive uses AC input with precharge.
The precharge system is important because a large variable-frequency drive contains a substantial DC-link capacitor system.
When power is first applied, the DC bus must be charged in a controlled manner.
Precharge helps manage this initial charging process.
For a large Frame 8 drive, this is a significant part of the overall power-conversion architecture.
The model is configured with no DC terminals.
It is therefore primarily intended for conventional AC-fed applications.
Typical installations include:
The configuration is different from applications designed around an external common DC bus.
The model has no dynamic braking in its standard configuration.
This should be considered carefully for applications involving rapid deceleration or large regenerative energy.
During deceleration, a motor can return mechanical energy to the drive.
This energy can increase the DC-bus voltage.
Applications with significant regenerative energy should therefore be evaluated for:
The absence of standard dynamic braking is not a limitation for many pumps and fans.
It becomes more important when the load has substantial stored mechanical energy.
The model uses forced-air cooling.
At a power level of hundreds of kilowatts, the drive generates significant heat.
Correct airflow is therefore important.
The installation should provide:
When several Frame 8 drives are installed together, the combined heat output can become a major electrical-room HVAC consideration.
The drive uses Frame 8 construction.
Frame 8 is a large industrial cabinet format.
It is considerably larger than compact VFDs used for small motors.
The physical installation therefore requires planning for:
For the IP20 MCC-style configuration, the standard Frame 8 reference is approximately 2453 mm high × 600 mm wide × 600 or 800 mm deep, with an approximate weight of 623 kg.
| Mechanical Parameter | Approximate Specification |
|---|---|
| Model | 20G1ALC460AN0NNNNN |
| Frame | 8 |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet Style | MCC Style |
| Height | 2453 mm |
| Width | 600 mm |
| Depth | 600 mm or 800 mm |
| Weight | 623 kg |
| Cooling | Forced Air |
| Mounting | Floor-Mounted Cabinet |
| HIM | None |
| Filter | Integrated / Filtered Configuration |
The 623 kg figure is an approximate Frame 8 IP20 MCC-style reference value.
For final equipment handling, foundation, transportation, and cabinet-layout work, the actual configured dimensional and weight documentation should be used.
The model is configured as an IP20 / NEMA Type 1 MCC-style drive.
This is a significant distinction from IP54 / Type 12 versions of the PowerFlex 755.
The IP20 configuration is generally intended for a controlled electrical environment.
Typical installation locations include:
It is not the preferred configuration for exposed outdoor environments or areas subject to direct water spray.
Environmental conditions should be reviewed before installation.
Large pumps are one of the strongest application areas for this drive.
Potential applications include:
Variable-speed control allows the motor speed to be adjusted according to process demand.
A typical control arrangement can use:
Pressure Sensor
↓
PLC
↓
EtherNet/IP
↓
PowerFlex 755
↓
Pump Motor
This provides an effective architecture for automated pump control.
Large fans can also benefit significantly from variable-speed control.
Potential applications include:
For variable-torque fan loads, the Light-Duty rating can be particularly useful.
The drive can adjust the fan speed according to the required airflow.
Industrial blowers can require substantial motor power.
Potential applications include:
The drive can provide variable-speed control while communicating operating information to the plant control system.
The PowerFlex 755 platform is also suitable for large conveyor systems.
Potential applications include:
Variable-speed control can provide controlled acceleration and deceleration.
This can reduce sudden mechanical stress on:
For conveyors with downhill movement or high regenerative energy, braking requirements should be evaluated separately.
The model can be considered for various mining applications where a 400 VAC industrial motor system is used.
Potential applications include:
The high-current Frame 8 architecture makes it suitable for large motors that exceed the practical range of compact industrial drives.
Cement plants use many large variable-speed motors.
Potential applications include:
The PowerFlex 755 architecture provides a standardized drive platform for these applications.
The drive can be used in large water-treatment and wastewater systems.
Potential applications include:
A PLC can adjust the drive speed according to:
This makes the drive suitable for automated water systems.
Large material-handling machinery often requires controlled speed and substantial motor current.
Potential applications include:
The drive can provide variable-speed operation while integrating status and fault information into the plant control network.
The 20G1ALC460AN0NNNNN can be applied to large process machinery where variable-speed control is required.
Potential examples include:
Final selection should always be based on the actual motor current and mechanical load characteristics.
The 460 A output capability provides substantial motor-control capacity.
This makes the drive suitable for large industrial motors.
The drive provides approximately:
This gives the same drive platform flexibility across different load types.
The PowerFlex 755 architecture is intended for large industrial applications requiring flexible control and automation integration.
Embedded EtherNet/IP allows the drive to become part of a centralized plant automation system.
This can simplify communication between:
Frame 8 provides a large physical and electrical platform suitable for high-power motors.
Forced-air cooling provides a practical thermal-management arrangement for high-power industrial applications.
The filtered configuration provides an integrated approach to input-side electrical noise management.
The final EMC performance still depends on installation practices.
The absence of a local HIM can be an advantage where operation is intended to be centralized.
It prevents the local keypad from becoming the primary operator interface and encourages integration with the plant automation system.
The AC-input/precharge architecture is appropriate for conventional industrial variable-frequency-drive installations.
The model can serve:
The AN0 configuration is particularly important because it identifies a specific configuration within the PowerFlex 755 family.
Important characteristics include:
| Configuration | AN0 Specification |
|---|---|
| Voltage Class | 400 VAC |
| Current | 460 A |
| Light Duty | 315 kW |
| Normal Duty | 250 kW |
| Heavy Duty | 200 kW |
| Frame | 8 |
| Enclosure | IP20 / Type 1 |
| Filtering | Filtered |
| CM Jumper | Removed |
| Dynamic Braking | None |
| HIM | Blank / No HIM |
| Cooling | Forced Air |
| Input | AC with Precharge |
| DC Terminals | None |
| Network | Embedded EtherNet/IP |
This configuration should not be confused with the similarly numbered 690 VAC 20G1ALF460 family.
The letter position in the catalog number identifies an important voltage/configuration distinction.
This distinction is useful when selecting related products.
| Parameter | 20G1ALC460AN0NNNNN | 20G1ALE460AN0NNNNN |
|---|---|---|
| Voltage Class | 400 VAC | 600 VAC |
| Current | 460 A | 460 A |
| Light Duty | 315 kW | Approx. 500 HP |
| Normal Duty | 250 kW | Approx. 500 HP |
| Heavy Duty | 200 kW | Approx. 400 HP |
| Frame | 8 | 8 |
| Product | PowerFlex 755 | PowerFlex 755 |
| Cooling | Forced Air | Forced Air |
| Typical System | 400 VAC | 600 VAC |
The two models have the same nominal current but are designed for different voltage systems.
They should not be treated as interchangeable.
The 20G1ALC460JN0NNNNN is a closely related configuration.
| Parameter | 20G1ALC460AN0NNNNN | 20G1ALC460JN0NNNNN |
|---|---|---|
| Voltage | 400 VAC | 400 VAC |
| Current | 460 A | 460 A |
| Light Duty | 315 kW | 315 kW |
| Normal Duty | 250 kW | 250 kW |
| Heavy Duty | 200 kW | 200 kW |
| Frame | 8 | 8 |
| Enclosure | IP20 / Type 1 | IP20 / Type 1 |
| Filtering | Filtered | Filtered |
| CM Jumper | Removed | Installed |
| Dynamic Braking | None | None |
| HIM | No HIM | No HIM |
| Cooling | Forced Air | Forced Air |
The principal configuration difference is the CM jumper arrangement.
The 20G1ALC460AN0NNNNN is a discontinued catalog configuration.
Its listed discontinuation date is June 30, 2024.
The identified direct replacement is 20G1ALC460JN0NNNNN.
This is an important consideration for new projects.
For existing installations, however, the discontinued model can remain relevant for:
The availability of replacement hardware and compatible accessories should be evaluated when maintaining an existing installation.
The following models are closely related PowerFlex 755 configurations and can be considered depending on voltage, current, and application requirements.
| Model | Voltage | Current | LD Rating | ND Rating | HD Rating | Frame | HIM / Configuration |
|---|---|---|---|---|---|---|---|
| 20G1ALC460JN0NNNNN | 400 VAC | 460 A | 315 kW | 250 kW | 200 kW | 8 | No HIM, CM Jumper Installed |
| 20G1ALC460JN4NNNNN | 400 VAC | 460 A | 315 kW | 250 kW | 200 kW | 8 | Enhanced LCD / Full Numeric |
| 20G1ALC540AN0NNNNN | 400 VAC | 540 A | 315 kW | 315 kW | 250 kW | 8 | No HIM |
| 20G1ALC567AN0NNNNN | 400 VAC | 567 A | 355 kW | 315 kW | 250 kW | 8 | No HIM |
| 20G1ALE460AN0NNNNN | 600 VAC | 460 A | 500 HP | 500 HP | 400 HP | 8 | No HIM |
The first two models are the closest alternatives because they retain the same 400 VAC / 460 A / 315-250-200 kW power class.
The 540 A and 567 A versions provide additional current and power capacity.
The 600 VAC 20G1ALE460 model is useful when the motor system operates at the higher voltage class.
| Model | Main Difference | Recommended Use |
|---|---|---|
| 20G1ALC460JN0NNNNN | Same power class, CM jumper installed | Replacement and new applications requiring JN configuration |
| 20G1ALC460JN4NNNNN | Same power class with enhanced local HIM | Applications requiring local operation and diagnostics |
| 20G1ALC540AN0NNNNN | Higher current and larger ND capacity | Larger 400 VAC motors |
| 20G1ALC567AN0NNNNN | Higher current and 355 kW LD | Higher-power variable-torque loads |
| 20G1ALE460AN0NNNNN | 600 VAC voltage class | Large 600 VAC motor systems |
The catalog family includes 400 VAC configurations ranging upward from the 460 A class into larger current ratings.
| Model | Product 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 industrial 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 equipment |
| 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 models cover several different sections of the Allen-Bradley drive range.
The PowerFlex 525 and 527 are much smaller drives intended for machine-level applications.
The PowerFlex 753 provides a larger industrial-drive platform.
The PowerFlex 755 models are intended for substantially larger motor systems and more demanding industrial applications.
The 25B-D030N114 is a PowerFlex 525 drive for compact industrial applications.
It is considerably smaller than the 460 A PowerFlex 755.
Typical applications include:
Its primary advantage is compact installation and straightforward machine integration.
It is not a direct electrical replacement for the 20G1ALC460AN0NNNNN.
The 25C-D030N114 is a PowerFlex 527 model designed for networked machine applications.
Typical applications include:
It provides a useful lower-power alternative when the motor is far smaller than the 460 A class.
The 20F1AND302JA0NNNNN belongs to the PowerFlex 753 family.
It is designed for large 480 VAC industrial motor applications.
Potential applications include:
It occupies an intermediate position between compact drives and the very large PowerFlex 755 Frame 8 systems.
The 20G1AJE460JN4NNNNN is a PowerFlex 755 model designed for a 600 VAC system.
It is a useful alternative when the motor system uses 600 VAC rather than 400 VAC.
Its large Frame 8 construction and enhanced local interface make it appropriate for major industrial equipment.
Potential applications include:
The 20G1AJF415JN4NNNNN belongs to the 690 VAC PowerFlex 755 family.
Its approximate power ratings are:
It is appropriate for large 690 VAC motors.
This model is useful when a project requires a high-voltage PowerFlex 755 rather than the 400 VAC class represented by the target model.
| Application | Typical Duty | Suitability |
|---|---|---|
| Large Centrifugal Pump | Light Duty | Excellent |
| Industrial Water Pump | Light / Normal | Excellent |
| Cooling-Water Pump | Light / Normal | Excellent |
| Process Pump | Normal Duty | Excellent |
| Large Centrifugal Fan | Light Duty | Excellent |
| Industrial Ventilation Fan | Light / Normal | Excellent |
| Large Blower | Light / Normal | Excellent |
| Aeration Blower | Light / Normal | Very Good |
| Large Conveyor | Normal / Heavy | Very Good |
| Bulk-Material Conveyor | Normal / Heavy | Very Good |
| Mining Conveyor | Normal / Heavy | Very Good |
| Cement Conveyor | Normal / Heavy | Very Good |
| Material-Handling System | Normal | Very Good |
| Wastewater Pump | Light / Normal | Excellent |
| Process Machinery | Normal / Heavy | Very Good |
| High-Inertia Machinery | Heavy | Requires Engineering Review |
| Rapid-Deceleration Machinery | Special | Braking Review Required |
| Regenerative Load | Special | Braking / Regeneration Review Required |
Large pumps are among the most practical applications for this drive.
A variable-frequency drive can adjust pump speed according to process requirements.
This can provide:
For large water and process systems, the drive can receive a speed reference from a PLC based on pressure or flow.
Variable-speed control is particularly useful for centrifugal fans.
Instead of operating continuously at full speed, the drive can adjust fan speed according to ventilation demand.
Potential benefits include:
The 315 kW Light-Duty capability is particularly relevant for large variable-torque fan systems.
Large conveyor systems can benefit from controlled acceleration.
A controlled acceleration profile can reduce mechanical shock.
This can help reduce stress on:
Speed control can also allow the conveyor to operate according to production demand.
Mining equipment can impose demanding operating conditions.
The PowerFlex 755 platform provides a large-drive architecture suitable for:
Where the environment is dusty, wet, corrosive, or exposed to severe temperature variation, the IP20 configuration should be installed inside a suitable protected electrical environment.
The model can be considered for:
The PowerFlex 755 platform allows different drive ratings to be standardized across a large industrial facility.
Large water-treatment systems often contain multiple high-power motors.
The 20G1ALC460AN0NNNNN can be considered for:
The embedded network capability allows the drive to exchange operating data with the central control system.
Industrial utility systems often require large motors for:
A Frame 8 drive can provide a centralized, cabinet-mounted solution for these large motors.
The model is well suited to a centralized automation strategy.
A typical plant architecture can be:
| Level | Equipment |
|---|---|
| Supervisory Level | SCADA / Plant HMI |
| Control Level | PLC / DCS |
| Network Level | Industrial Ethernet |
| Drive Level | PowerFlex 755 |
| Motor Level | 400 VAC Motor |
| Mechanical Level | Pump / Fan / Conveyor / Process Equipment |
This structure allows the drive to become part of the overall automation system rather than operating as an isolated motor controller.
Because the catalog configuration has no HIM, remote control is especially important.
The drive can be operated through:
For a plant with many large motors, centralized control can be more practical than installing an operator keypad on every drive.
The trade-off is that maintenance personnel may require a separate engineering or operator interface when performing local commissioning or troubleshooting.
The IP20 / NEMA Type 1 configuration is intended for a controlled installation environment.
Recommended locations include:
The equipment should not be treated as an outdoor weatherproof cabinet.
For outdoor installations or areas with water spray, additional enclosure protection would normally be required.
Large variable-frequency drives generate heat.
The electrical room should be designed to handle the heat generated by:
When several Frame 8 drives are installed together, the total heat load can become significant.
The HVAC system should therefore be sized according to the total installed drive capacity.
The approximate Frame 8 IP20 cabinet dimensions are:
2453 mm high × 600 mm wide × 600 or 800 mm deep
with an approximate weight of:
623 kg.
This means that the drive requires significantly more floor space and handling capability than a compact VFD.
The installation should allow adequate space for:
A cabinet weighing approximately 623 kg requires suitable handling equipment.
Before delivery, the installation team should verify:
The cabinet height of approximately 2453 mm should receive particular attention during transportation.
A large Frame 8 drive requires a structured maintenance program.
Typical inspection activities can include:
Because the AN0 configuration has no HIM, maintenance personnel may rely more heavily on the plant control system or external engineering interface for diagnostics.
The following factors should be evaluated before installation:
| Engineering Factor | Required Evaluation |
|---|---|
| Supply Voltage | 400 VAC |
| Supply Phase | Three Phase |
| Motor Voltage | Must Match |
| Motor Current | Must Match Drive Capability |
| Motor Power | Must Match Duty Rating |
| Duty Type | LD / ND / HD |
| Starting Torque | Verify |
| Continuous Torque | Verify |
| Acceleration | Verify |
| Deceleration | Verify |
| Regeneration | Evaluate |
| Braking | Evaluate |
| Ambient Temperature | Verify |
| Installation Altitude | Verify |
| Motor Cable Length | Verify |
| EMC | Verify |
| Grounding | Verify |
| CM Configuration | Jumper Removed |
| Cooling | Forced Air |
| Enclosure | IP20 / Type 1 |
| Communication | Embedded EtherNet/IP |
The model does not include standard dynamic braking.
Applications requiring rapid stopping should be reviewed carefully.
Particular attention should be paid to:
If the application returns substantial energy to the drive during deceleration, an appropriate braking or regenerative solution may be necessary.
The PowerFlex 755 family provides a consistent architecture across multiple power ratings.
For example, a large facility can standardize on related PowerFlex 755 configurations for:
This can simplify:
A useful progression of related 400 VAC models is shown below.
| Model | Current | LD | ND | HD | Frame |
|---|---|---|---|---|---|
| 20G1ALC460AN0NNNNN | 460 A | 315 kW | 250 kW | 200 kW | 8 |
| 20G1ALC540AN0NNNNN | 540 A | 315 kW | 315 kW | 250 kW | 8 |
| 20G1ALC567AN0NNNNN | 567 A | 355 kW | 315 kW | 250 kW | 8 |
| 20G1ALC650AN0NNNNN | 650 A | 400 kW | 355 kW | 315 kW | 8 |
| 20G1ALC750AN0NNNNN | 750 A | 450 kW | 400 kW | 315 kW | 8 |
This group is useful when selecting a drive according to motor current and duty requirements rather than simply selecting by nominal motor horsepower.
The related 400 VAC family includes these larger current configurations in the PowerFlex 755 architecture.
| Model | Voltage | Current | LD | ND | HD | Main Advantage |
|---|---|---|---|---|---|---|
| 20G1ALC460JN0NNNNN | 400 VAC | 460 A | 315 kW | 250 kW | 200 kW | Direct replacement direction |
| 20G1ALC460JN4NNNNN | 400 VAC | 460 A | 315 kW | 250 kW | 200 kW | Local enhanced interface |
| 20G1ALC540AN0NNNNN | 400 VAC | 540 A | 315 kW | 315 kW | 250 kW | Higher ND capacity |
| 20G1ALC567AN0NNNNN | 400 VAC | 567 A | 355 kW | 315 kW | 250 kW | Higher LD capacity |
| 20G1ALE460AN0NNNNN | 600 VAC | 460 A | 500 HP | 500 HP | 400 HP | Higher system voltage |
For a 400 VAC, 460 A application where the plant uses centralized PLC or DCS control, the original 20G1ALC460AN0NNNNN configuration is technically well aligned with that architecture.
For a replacement project involving the same basic electrical class, the 20G1ALC460JN0NNNNN is the most directly related successor configuration.
For applications requiring local operator access, the 20G1ALC460JN4NNNNN is more attractive because of its enhanced operator-interface configuration.
For motors requiring more current or higher normal-duty capacity, the 20G1ALC540 and 20G1ALC567 configurations provide higher-capacity alternatives.
For a 600 VAC motor system, the 20G1ALE460 family is the more appropriate voltage class.
The main advantages of the 20G1ALC460AN0NNNNN can be summarized as follows:
| Advantage | Description |
|---|---|
| High Current | 460 A output capability |
| High Power | Up to 315 kW Light Duty |
| Industrial Platform | PowerFlex 755 architecture |
| Network Integration | Embedded EtherNet/IP |
| Large Frame | Frame 8 |
| Forced-Air Cooling | Suitable for high-power operation |
| Filtered Input | Integrated filtered configuration |
| AC Precharge | Conventional AC-fed architecture |
| No DC Terminals | Straightforward AC-input application |
| No Dynamic Braking | Simple configuration for non-regenerative loads |
| No HIM | Suitable for centralized control |
| MCC Cabinet | Designed for industrial electrical-room installation |
| 400 VAC | Suitable for common industrial three-phase systems |
| Item | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 750-Series |
| Drive Series | PowerFlex 755 |
| Model | 20G1ALC460AN0NNNNN |
| Lifecycle | Discontinued |
| Direct Replacement | 20G1ALC460JN0NNNNN |
| Input Voltage | 400 VAC |
| Phase | Three Phase |
| Current | 460 A |
| Light Duty | 315 kW |
| Normal Duty | 250 kW |
| Heavy Duty | 200 kW |
| Frame | 8 |
| Cooling | Forced Air |
| Enclosure | IP20 / NEMA Type 1 |
| Cabinet Style | MCC Style |
| Cabinet Depth | 600 or 800 mm |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm |
| Approx. Weight | 623 kg |
| Input | AC Input with Precharge |
| DC Terminals | None |
| Filtering | Filtered |
| CM Jumper | Removed |
| Dynamic Braking | None |
| HIM | Blank / No HIM |
| Communication | Embedded EtherNet/IP |
| Primary Application | Large Industrial Motor Control |
The Allen-Bradley 20G1ALC460AN0NNNNN is a large-capacity PowerFlex 755 AC drive intended for industrial motor systems operating at 400 VAC three phase.
Its 460 A nominal current capability, combined with 315 kW Light-Duty, 250 kW Normal-Duty, and 200 kW Heavy-Duty ratings, gives the model a broad range of applications.
The Frame 8 MCC-style cabinet places the product firmly in the large industrial-drive category.
The approximate 2453 mm height, 600 mm width, 600 or 800 mm depth, and 623 kg basic frame-level weight should be taken into account during electrical-room planning, transportation, lifting, and maintenance access.
The embedded EtherNet/IP capability makes the drive well suited to centralized automation.
The Blank / No HIM configuration is particularly suitable for applications where operation is handled by a PLC, DCS, SCADA system, or remote HMI.
The filtered input and CM jumper removed configuration provides a defined electrical arrangement that should be matched to the plant grounding and EMC design.
The absence of standard dynamic braking means that high-inertia and regenerative applications should receive additional braking analysis before final selection.
From an application standpoint, the model is particularly suitable for:
For an existing installation, the model remains relevant for maintenance, retrofit, spare-parts planning, and replacement evaluation even though its catalog lifecycle has ended.
For new installations, the related 20G1ALC460JN0NNNNN is the most direct replacement configuration identified for this catalog number, while the 20G1ALC460JN4NNNNN is a useful alternative when local operator access is required.
Overall, the 20G1ALC460AN0NNNNN can be characterized as a high-current, 400 VAC, three-phase, Frame 8 PowerFlex 755 industrial AC drive with 460 A output capability, up to 315 kW Light-Duty capacity, embedded EtherNet/IP, forced-air cooling, filtered input, CM jumper removed, no dynamic braking, no local HIM, and an IP20 / NEMA Type 1 MCC-style cabinet configuration.
Its strongest application area is large, centrally controlled industrial motor systems where the motor is too large for compact VFDs and where a cabinet-mounted, network-integrated drive architecture is preferred.