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Allen-Bradley 20G1ALD710AN4NNNNN PowerFlex 755 AC Drive
1. Product Introduction
The 20G1ALD710AN4NNNNN is a high-power air-cooled AC variable frequency drive belonging to the PowerFlex 755 series.
It is designed for large industrial motor-control applications where high output current, substantial motor power, flexible control, industrial networking, and reliable continuous operation are required.
With a 710 A current rating and a 480 VAC three-phase power class, this drive is intended for large motors and heavy industrial equipment. Typical applications include large pumps, fans, blowers, conveyors, compressors, material-handling equipment, mining machinery, cement and aggregate equipment, process machinery, and large production systems.
The drive uses a large-frame air-cooled construction and is intended for industrial electrical-room, MCC, or cabinet installations.
The AN4 configuration is an important part of the complete catalog number. It should not be treated as identical to an AN0 or AN2 configuration simply because all three versions have the same 710 A current rating.
For replacement work, purchasing, and engineering selection, the complete catalog number should always be matched against the existing electrical and mechanical configuration.
2. Brand and Product Series
| Item | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 755 |
| Model | 20G1ALD710AN4NNNNN |
| Product Type | AC Variable Frequency Drive |
| Drive Category | High-Power Industrial AC Drive |
| Cooling | Air-Cooled / Forced-Air |
| Current Class | 710 A |
| Voltage Class | 480 VAC |
| Phase | Three-Phase |
| Frame | Frame 8 Class |
| Installation | Industrial / MCC / Electrical Cabinet |
| Communication | Industrial Ethernet / EtherNet/IP capability |
| Application Level | Large Industrial Motor Control |
The PowerFlex 755 family is intended for applications where a compact machine-level VFD is no longer sufficient.
It provides a platform for controlling large motors while also supporting integration into larger industrial automation systems.
3. Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 20G1ALD710AN4NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Drive Type | Air-Cooled AC Drive |
| Rated Current | 710 A |
| Input Voltage Class | 480 VAC |
| Input Phase | 3 Phase |
| Input Frequency | 50/60 Hz |
| Cooling Method | Forced-Air / Air-Cooled |
| Frame | Frame 8 |
| Light-Duty Rating | Approximately 650 HP |
| Normal-Duty Rating | Approximately 600 HP |
| Heavy-Duty Rating | Approximately 450 HP |
| Light-Duty Power | Approximately 485 kW |
| Normal-Duty Power | Approximately 447 kW |
| Heavy-Duty Power | Approximately 336 kW |
| Input Configuration | AC Input |
| Precharge | Included |
| External DC Terminals | Not provided in this configuration |
| Communication | Embedded Industrial Ethernet / EtherNet/IP capability |
| Interface | Configuration-dependent |
| Mounting | Industrial Cabinet / MCC Style |
| Enclosure Class | Type 1 / IP20 style for applicable chassis configuration |
| Cooling Airflow | Forced Air |
| Motor Type | Three-Phase AC Motor |
| Typical Motor Class | Large Industrial Motor |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm |
| Approx. Depth | 800 mm |
| Approx. Weight | 620–725 kg |
| Installation Environment | Industrial Electrical Room / MCC |
The dimensions and weight should be treated as engineering planning values rather than fabrication values.
For final cabinet design, shipping, lifting, floor-loading calculations, and installation drawings, the mechanical documentation corresponding to the exact supplied configuration should be used.
4. 710 A Current Rating
The defining electrical characteristic of the 20G1ALD710AN4NNNNN is its 710 A current capacity.
This places the unit in the high-power industrial-drive category.
A current rating at this level is intended for motors that are substantially larger than those normally controlled by compact machine drives.
In practical applications, the motor should be selected according to its actual nameplate current and required duty rather than selecting a drive based only on horsepower.
Motor current can vary depending on motor efficiency, power factor, voltage, motor design, load characteristics, and operating conditions.
The 710 A class therefore provides a substantial amount of capacity for large industrial motors while maintaining the flexibility of a variable-speed drive system.
5. Horsepower and Duty Ratings
The drive can be considered across several duty categories.
| Duty | Approximate Rating | Approx. kW | Typical Application |
|---|---|---|---|
| Light Duty | 650 HP | 485 kW | Fans, pumps and moderate-overload loads |
| Normal Duty | 600 HP | 447 kW | General industrial machinery |
| Heavy Duty | 450 HP | 336 kW | Higher-load and higher-overload applications |
These values should be used as application-selection references rather than as a substitute for checking the motor nameplate current.
For a conveyor, compressor, crusher, mixer, or other equipment with substantial starting or transient torque, the heavy-duty requirement can become more important than the nominal horsepower.
6. 480 VAC Three-Phase Configuration
The 20G1ALD710AN4NNNNN is designed around a 480 VAC three-phase industrial power class.
This voltage class is widely used for large industrial motors.
Using a higher distribution voltage for large motors allows the same power level to be delivered with lower current than would be required at a much lower motor voltage.
This is one reason 480 VAC systems are common in industrial plants containing large pumps, fans, compressors, conveyors, and process machinery.
The drive converts the incoming AC power into a controlled output for the motor, allowing motor speed and operating characteristics to be adjusted according to process requirements.
7. Air-Cooled Construction
The drive uses an air-cooled forced-air architecture.
Large power semiconductors and other electrical components generate significant heat during operation.
The cooling system transfers this heat away from the power electronics and into the surrounding ventilation system.
For this reason, airflow is a critical part of the installation.
The electrical room or cabinet should provide suitable ventilation and should prevent excessive recirculation of hot air.
If the drive is installed in a dusty industrial environment, additional attention should be given to ventilation openings, heat sinks, filters, fans, and the overall cleanliness of the cooling path.
8. Frame 8 Construction
The 20G1ALD710AN4NNNNN belongs to the large Frame 8 class.
Frame size is not simply a physical enclosure designation.
It is associated with the drive’s power section, cooling arrangement, internal electrical architecture, cable access, service requirements, and mechanical installation.
A Frame 8 drive requires significantly more installation planning than a small or medium VFD.
Important planning items include:
- Floor loading
- Cabinet construction
- Cable routing
- Heat dissipation
- Service access
- Lifting equipment
- Transportation clearance
- Ventilation
- Grounding
- Maintenance space
9. AN4 Configuration
The AN4 portion of the catalog number identifies a specific factory configuration within the larger PowerFlex 755 catalog structure.
This is important because the 710 A family contains several different configurations.
For example:
| Model | Current | Configuration |
|---|---|---|
| 20G1ALD710AN0NNNNN | 710 A | AN0 configuration |
| 20G1ALD710AN2NNNNN | 710 A | AN2 configuration |
| 20G1ALD710AN4NNNNN | 710 A | AN4 configuration |
Although these units share the same basic 710 A power class, their option and interface configurations should not be assumed to be identical.
For an equipment replacement, the complete catalog number should therefore be checked.
10. Industrial Communication
The PowerFlex 755 platform is designed for integration into industrial automation networks.
For the 20G1ALD710AN4NNNNN, network communication can form part of the overall motor-control architecture.
A typical control structure can be represented as:
PLC / Controller → Industrial Network → PowerFlex 755 → Motor → Mechanical Load
This architecture allows the drive to become part of the plant’s automation system instead of functioning only as an isolated speed controller.
Typical information exchanged can include:
- Run command
- Stop command
- Speed reference
- Frequency reference
- Motor current
- Output frequency
- Drive status
- Fault status
- Warning information
- Diagnostic information
- Parameter information
This is particularly useful for large industrial plants where multiple motors are monitored from a central control room.
11. AC Input and Precharge
The drive uses an AC input configuration with a controlled precharge arrangement.
Precharge is particularly important in large drives because the DC bus contains significant energy-storage components.
During startup, the DC bus must be charged in a controlled manner.
The precharge arrangement helps limit the initial charging current and provides a controlled transition to normal operating conditions.
For a high-power drive, this is an important part of the overall electrical architecture.
12. External DC Terminals
The specified configuration is not intended to be treated as a general-purpose external DC-bus connection point.
This distinction matters when engineers are designing systems involving common DC buses, regenerative systems, or external DC-link equipment.
If the existing installation uses a shared DC bus, the replacement drive should be checked carefully for compatibility rather than assuming that any 710 A PowerFlex 755 model can be substituted.
13. Interface and Operator Control
The exact operator-interface arrangement is determined by the complete catalog configuration.
For large industrial systems, the drive may be controlled locally, remotely, or through the plant automation system.
Typical operating functions include:
- Start
- Stop
- Speed adjustment
- Direction control
- Fault reset
- Status monitoring
- Parameter adjustment
- Diagnostic monitoring
In a modern plant, the drive can often be integrated into a PLC/HMI system so that operators do not need to access the drive directly for normal operation.
14. Product Applications
The 20G1ALD710AN4NNNNN is intended for large industrial motor-control applications.
Common application areas include:
- Large water pumps
- Cooling-water pumps
- Process pumps
- Large fans
- Industrial blowers
- Conveyor systems
- Mining conveyors
- Cement conveyors
- Material-handling systems
- Compressors
- Process machinery
- Mining equipment
- Aggregate-processing equipment
- Cement equipment
- Industrial ventilation
- Wastewater equipment
- Large production machinery
- Continuous-process equipment
- Large auxiliary motors
- Heavy industrial machinery
15. Pump Applications
Large pump systems are a natural application for this type of drive.
A variable-speed drive allows the pump motor to operate at different speeds according to process requirements.
Instead of operating continuously at a fixed maximum speed, the motor can be adjusted to the required operating point.
Typical applications include:
- Water treatment
- Industrial water circulation
- Cooling-water systems
- Process water
- Wastewater
- Irrigation
- Industrial pumping
- Chemical-process pumping
When applying the drive to a pump, the pump curve, motor current, operating speed, minimum speed, acceleration requirements, and process pressure should all be considered.
16. Fan and Blower Applications
The drive is also suitable for large fan and blower systems.
Examples include:
- Factory ventilation
- Furnace fans
- Cooling systems
- Dust-collection systems
- Mine ventilation
- Industrial exhaust systems
- Process-air systems
- Large air-handling equipment
Fan applications can benefit from variable-speed control because airflow requirements often change throughout the production cycle.
The drive can adjust motor speed to match the actual process requirement.
17. Conveyor Applications
Large conveyor systems often require substantial motor power and careful acceleration control.
Potential applications include:
- Mining conveyors
- Ore conveyors
- Coal conveyors
- Cement conveyors
- Aggregate conveyors
- Port conveyors
- Bulk-material systems
- Industrial material-handling systems
For these applications, the drive should be selected according to the conveyor’s actual torque requirement.
Factors such as belt length, belt weight, incline, starting load, friction, acceleration time, and maximum material capacity can significantly influence the required drive rating.
18. Mining Applications
The large current capacity of the 20G1ALD710AN4NNNNN makes it relevant to large mining and mineral-processing installations.
Possible applications include:
- Large belt conveyors
- Mine ventilation fans
- Slurry pumps
- Water pumps
- Material-processing equipment
- Crushers
- Bulk-material systems
Mining environments can expose electrical equipment to dust, vibration, temperature changes, and long operating periods.
The electrical enclosure and cooling arrangement should therefore be designed around the actual environmental conditions.
19. Cement and Aggregate Applications
Cement and aggregate plants commonly contain many large motors.
The drive can be considered for:
- Process fans
- Dust-collection fans
- Large pumps
- Conveyors
- Material-handling equipment
- Cooling systems
- Crushers
- Process blowers
The ability to communicate with a plant automation network is especially useful in these facilities because many large motors may need to be coordinated from a central control system.
20. Compressor Applications
Large compressors can place significant demands on the drive.
Before using a variable frequency drive with a compressor, the following should be evaluated:
- Compressor type
- Starting torque
- Minimum speed
- Maximum speed
- Acceleration time
- Process pressure
- Motor thermal capability
- Mechanical resonance
- Lubrication requirements
- Operating cycle
A compressor application should therefore be engineered according to the specific compressor design rather than based solely on motor horsepower.
21. Process Machinery
The PowerFlex 755 platform is also suitable for large process machinery.
Possible applications include:
- Mixers
- Extrusion systems
- Material-processing machinery
- Continuous production equipment
- Large machine systems
- Industrial mixers
- Production lines
- Large mechanical drives
The combination of high current capability and industrial communication makes the platform suitable for systems where motor control is closely connected to the overall production process.
22. Product Advantages
High 710 A Current Capacity
The 710 A rating provides substantial output capability for large motors.
This allows the drive to serve applications that would be beyond the range of compact VFDs.
Large Motor Compatibility
The approximately 650 HP light-duty rating places the drive in the large-motor category.
This makes it suitable for major industrial equipment rather than small standalone machines.
Flexible Duty Capability
The different duty classifications allow engineers to evaluate the drive according to the actual load profile.
This is particularly important for equipment with different overload requirements.
Industrial Network Integration
Industrial network capability allows the drive to communicate with PLCs and plant control systems.
This can simplify centralized monitoring and control.
Air-Cooled Architecture
The forced-air design is appropriate for industrial electrical rooms and MCC installations where a conventional air-cooling system is preferred.
Large Industrial Platform
The PowerFlex 755 architecture is designed for applications that require more sophisticated drive functionality than a basic VFD.
Suitable for Continuous Operation
With proper installation, ventilation, electrical protection, and preventive maintenance, the drive is designed for demanding industrial service.
23. Dimensions and Weight
The physical size of this drive is an important consideration.
| Mechanical Parameter | Approximate Value |
|---|---|
| Model | 20G1ALD710AN4NNNNN |
| Height | Approx. 2453 mm |
| Width | Approx. 600 mm |
| Depth | Approx. 800 mm |
| Weight | Approx. 620–725 kg |
| Frame | Frame 8 |
| Cooling | Forced Air |
| Installation | MCC / Industrial Cabinet |
| Mounting | Industrial Floor/Cabinet Installation |
| Service Access | Required |
| Lifting Equipment | Recommended |
The approximate dimensions should be used for preliminary layout work.
Because large-frame drive assemblies can be supplied in different mechanical arrangements, the final installation drawing should be used for detailed cabinet fabrication and structural planning.
The weight is substantial.
At approximately several hundred kilograms, the drive should be transported and positioned using appropriate industrial lifting equipment.
24. Mechanical Installation
Before installation, the following should be confirmed:
Floor Loading
The supporting floor or structure must be capable of handling the equipment weight.
Cabinet Size
Adequate internal and external space must be provided.
Cable Bending Radius
Large power cables require considerable space for routing and termination.
Cooling
The ventilation path must allow sufficient air movement.
Maintenance Access
Fans, power connections, control components, and other serviceable areas must remain accessible.
Transportation
The route from unloading area to final installation position should be checked before the equipment arrives.
25. Electrical Installation
A 710 A drive requires careful power-system design.
Important electrical factors include:
- Input voltage
- Available fault current
- Protective devices
- Cable ampacity
- Grounding
- Motor current
- Motor voltage
- Motor insulation
- Motor cable length
- Harmonic considerations
- EMC considerations
- Control wiring
- Network wiring
The incoming power system should be designed according to the actual installation and applicable electrical requirements.
26. Motor Selection
Motor selection should be based on the complete operating profile.
| Motor Parameter | Why It Matters |
|---|---|
| Motor Voltage | Must be compatible with the drive system |
| Motor Current | Primary drive-sizing factor |
| Motor HP | Establishes approximate power requirement |
| Motor Frequency | Determines operating range |
| Motor Speed | Determines required output frequency |
| Motor Torque | Important for load matching |
| Starting Torque | Important for heavy loads |
| Overload | Determines duty requirements |
| Insulation | Important for inverter-fed motors |
| Cable Length | Can influence motor-side electrical stress |
| Environment | Determines thermal and enclosure requirements |
A drive should not be selected solely from the motor horsepower shown on a quotation.
The actual motor nameplate current is one of the most important values for final selection.
27. Energy Efficiency and Speed Control
Variable-speed operation can provide significant operational advantages in suitable applications.
This is particularly relevant to pumps and fans.
When process demand changes, the motor does not necessarily need to operate at maximum speed all the time.
The drive can adjust motor speed according to process demand.
The actual energy benefit depends on the mechanical system, load curve, operating schedule, motor efficiency, process requirements, and control strategy.
28. Maintenance Requirements
Large air-cooled drives require a structured maintenance program.
Recommended inspection areas include:
- Cooling fans
- Heat sinks
- Ventilation paths
- Power terminals
- Ground connections
- Control wiring
- Network connections
- Cabinet ventilation
- Dust accumulation
- Signs of overheating
- Fault history
- Warning history
- General mechanical condition
Cooling components deserve particular attention because reduced airflow can increase internal temperature and accelerate component aging.
29. Environmental Considerations
The drive is intended for industrial environments, but the installation environment still needs to be controlled.
Important conditions include:
- Ambient temperature
- Humidity
- Dust
- Corrosive atmosphere
- Altitude
- Vibration
- Ventilation
- Electrical noise
- Cabinet temperature
- Cooling airflow
In dusty environments such as cement plants, aggregate facilities, and mines, contamination of cooling paths can become an important maintenance issue.
30. Five Related PowerFlex 755 Models
The following models are useful for comparison with the 20G1ALD710AN4NNNNN.
| Model | Current | Approx. LD | Approx. ND | Approx. HD | Main Difference |
|---|---|---|---|---|---|
| 20G1ALD545AN4NNNNN | 545 A | 500 HP | 450 HP | 350 HP | Lower current version |
| 20G1ALD617AN4NNNNN | 617 A | 600 HP | 500 HP | 400 HP | Lower current version |
| 20G1ALD710AN0NNNNN | 710 A | 650 HP | 600 HP | 450 HP | Same current, different configuration |
| 20G1ALD710AN2NNNNN | 710 A | 650 HP | 600 HP | 450 HP | Same current, different configuration |
| 20G1ALD740AN4NNNNN | 740 A | 700 HP | 650 HP | 500 HP | Higher current version |
These models provide useful alternatives when selecting a drive according to motor current, duty requirements, and factory configuration.
31. Comparison of 545 A, 617 A, 710 A and 740 A Versions
| Model | Current | LD Rating | ND Rating | HD Rating |
|---|---|---|---|---|
| 20G1ALD545AN4NNNNN | 545 A | 500 HP | 450 HP | 350 HP |
| 20G1ALD617AN4NNNNN | 617 A | 600 HP | 500 HP | 400 HP |
| 20G1ALD710AN4NNNNN | 710 A | 650 HP | 600 HP | 450 HP |
| 20G1ALD740AN4NNNNN | 740 A | 700 HP | 650 HP | 500 HP |
The 710 A model occupies an important position between the 617 A and 740 A versions.
For applications close to the upper operating range of a 617 A configuration, the 710 A version provides additional current capacity.
For applications requiring still more capacity, the 740 A configuration provides a higher current class.
32. Same-Current Comparison
One of the most useful comparisons is between the three 710 A configurations.
| Model | Current | LD | ND | HD | Configuration |
|---|---|---|---|---|---|
| 20G1ALD710AN0NNNNN | 710 A | 650 HP | 600 HP | 450 HP | AN0 |
| 20G1ALD710AN2NNNNN | 710 A | 650 HP | 600 HP | 450 HP | AN2 |
| 20G1ALD710AN4NNNNN | 710 A | 650 HP | 600 HP | 450 HP | AN4 |
The power rating alone does not determine whether these catalog numbers are interchangeable.
The option code and interface configuration should be checked whenever replacing or upgrading an existing drive.
33. Five Same-Brand Popular Models
For a broader product comparison, the following five models represent different application levels within the same brand family.
| Model | Series | General Application Level | Typical Use | Main Characteristic |
|---|---|---|---|---|
| 25B-D010N104 | PowerFlex 525 | Small / Medium | Pumps, fans, conveyors, machines | Compact general-purpose drive |
| 25C-D010N103 | PowerFlex 527 | Small / Medium | Networked machine systems | Machine-oriented network control |
| 20F11NC2P1JA0NNNNN | PowerFlex 753 | Medium / Large | Industrial machinery | Flexible industrial drive |
| 20F11NC8P0JA0NNNNN | PowerFlex 753 | Large | Process and heavy equipment | Larger industrial application platform |
| 20G1ALD710AN4NNNNN | PowerFlex 755 | Very Large | Pumps, fans, conveyors, compressors | 710 A high-power drive |
These models cover a broad range of industrial motor-control applications.
34. Same-Brand Parameter Comparison
| Model | Series | Approximate Size Class | Typical Motor Application | Cooling / Construction |
|---|---|---|---|---|
| 25B-D010N104 | PowerFlex 525 | Small / Medium | Compact industrial motors | Compact VFD |
| 25C-D010N103 | PowerFlex 527 | Small / Medium | Machine automation | Compact networked drive |
| 20F11NC2P1JA0NNNNN | PowerFlex 753 | Medium / Large | Industrial motors | Industrial modular drive |
| 20F11NC8P0JA0NNNNN | PowerFlex 753 | Large | Large machinery | Large industrial drive |
| 20G1ALD710AN4NNNNN | PowerFlex 755 | Very Large | Large industrial motors | Air-cooled high-power drive |
For the smaller models, exact current and horsepower depend on the complete catalog configuration, so final selection should always be based on the complete catalog number and motor requirements.
35. Application Selection
| Application | Suitability | Important Selection Factor |
|---|---|---|
| Large Pump | High | Motor current and pump curve |
| Cooling Pump | High | Continuous operating load |
| Large Fan | High | Speed range and airflow |
| Industrial Blower | High | Torque and operating speed |
| Conveyor | High | Starting torque and overload |
| Mining Conveyor | High | Mechanical load and environment |
| Cement Conveyor | High | Dust and continuous operation |
| Compressor | Application-dependent | Starting and operating torque |
| Crusher | Application-dependent | High transient load |
| Mixer | Application-dependent | Torque profile |
| Wastewater System | High | Environmental protection |
| Process Machinery | High | Speed and torque requirements |
| Material Handling | High | Acceleration/deceleration |
| Large Production Motor | High | Motor nameplate current |
36. Practical Advantages in Industrial Applications
High Power Capability
The 710 A rating allows the drive to control large motors that require substantial electrical current.
Flexible Speed Control
Motor speed can be adjusted to suit process requirements.
Industrial Communication
The drive can participate in a larger automation network.
Large-Motor Application Range
It can be considered for pumps, fans, conveyors, compressors, and process machinery.
Air-Cooled Design
Forced-air cooling provides a familiar architecture for industrial electrical installations.
Large PowerFlex Platform
The PowerFlex 755 platform provides a broad range of control and monitoring functions.
Diagnostic Capability
Drive status and fault information can be incorporated into the plant control architecture.
Suitable for Centralized Automation
The drive can be used as part of a coordinated system containing PLCs, HMIs, supervisory controls, and multiple motor drives.
37. Installation Planning Table
| Installation Item | Requirement |
|---|---|
| Model | 20G1ALD710AN4NNNNN |
| Height | Approx. 2453 mm |
| Width | Approx. 600 mm |
| Depth | Approx. 800 mm |
| Weight | Approx. 620–725 kg |
| Cooling | Forced Air |
| Floor Support | Must be verified |
| Cabinet | Large industrial cabinet / MCC |
| Power Cable Space | Required |
| Motor Cable Space | Required |
| Network Cable Space | Required |
| Ventilation | Required |
| Service Clearance | Required |
| Lifting Equipment | Required for practical installation |
| Environmental Protection | Must match installation conditions |
38. Replacement Checklist
When replacing another large PowerFlex drive with the 20G1ALD710AN4NNNNN, verify:
| Check | Required |
|---|---|
| Voltage | Yes |
| Current | Yes |
| Motor HP | Yes |
| Motor Nameplate Current | Yes |
| Duty Rating | Yes |
| Frame Size | Yes |
| Cooling | Yes |
| Network | Yes |
| Interface Configuration | Yes |
| Braking Requirements | Yes |
| Filter Requirements | Yes |
| DC Bus Requirements | Yes |
| Cabinet Dimensions | Yes |
| Weight | Yes |
| Cable Connections | Yes |
| PLC Compatibility | Yes |
| Motor Compatibility | Yes |
| Environmental Conditions | Yes |
A catalog number that has the same current rating is not necessarily a drop-in replacement.
39. Technical Summary
| Category | Specification |
|---|---|
| Product | High-Power AC Variable Frequency Drive |
| Model | 20G1ALD710AN4NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Current Rating | 710 A |
| Voltage Class | 480 VAC |
| Phase | 3 Phase |
| Cooling | Air-Cooled / Forced-Air |
| Frame | Frame 8 |
| LD Rating | Approx. 650 HP |
| ND Rating | Approx. 600 HP |
| HD Rating | Approx. 450 HP |
| LD Power | Approx. 485 kW |
| ND Power | Approx. 447 kW |
| HD Power | Approx. 336 kW |
| Input | AC Input with Precharge |
| External DC Terminals | Not provided in this configuration |
| Communication | Industrial Ethernet / EtherNet/IP capability |
| Installation | Industrial / MCC |
| Approx. Dimensions | 2453 × 600 × 800 mm |
| Approx. Weight | 620–725 kg |
| Main Applications | Pumps, Fans, Conveyors, Compressors, Process Machinery |
| Drive Type | Large Industrial AC Drive |
40. Final Product Description
The Allen-Bradley 20G1ALD710AN4NNNNN is a high-power PowerFlex 755 air-cooled AC drive intended for demanding industrial motor-control applications.
Its 710 A current rating, 480 VAC three-phase configuration, large-frame construction, and approximately 650 HP light-duty capability make it suitable for substantial industrial motors.
The drive is particularly well suited to large pumps, fans, blowers, conveyors, compressors, mining equipment, cement machinery, material-handling systems, process machinery, and other applications where a high-capacity variable-frequency drive is required.
The air-cooled construction provides a practical solution for industrial electrical rooms and MCC installations, while the PowerFlex 755 platform provides the control and communication capabilities needed for integration into larger automation systems.
For applications involving PLC-based control, centralized monitoring, and plant-wide motor management, the drive can be integrated into an industrial communication architecture so that operators can monitor drive status, motor operating conditions, faults, warnings, and operating references.
The 710 A capacity also makes this model useful when comparing different large-frame drive sizes. The closely related 617 A versions provide lower current capacity, while the 740 A versions provide additional capacity for larger motor requirements.
One of the most important points when selecting this model is the distinction between the complete catalog number and the basic power rating. The 20G1ALD710AN4NNNNN, 20G1ALD710AN2NNNNN, and 20G1ALD710AN0NNNNN all belong to the same general 710 A PowerFlex 755 family, but their configuration codes should be checked carefully before substitution.
The physical size of the drive also needs to be considered during project planning. With an approximate planning envelope of 2453 mm high × 600 mm wide × 800 mm deep and an estimated planning weight of approximately 620–725 kg, this is major industrial electrical equipment rather than a compact cabinet component.
Proper transportation, lifting, floor loading, cable routing, cooling airflow, service access, and cabinet design should therefore be addressed before installation.
For final drive selection, motor nameplate current should be treated as one of the most important parameters. Motor horsepower alone is not enough to determine whether a particular drive configuration is appropriate.
The motor’s voltage, current, power, speed, frequency, torque, overload requirement, insulation system, operating environment, and cable length should all be evaluated.
In suitable applications, variable-speed operation can also provide process-control benefits. Pumps and fans, for example, can operate according to actual process demand rather than remaining at maximum speed continuously.
Overall, the 20G1ALD710AN4NNNNN is a large industrial variable-frequency drive designed around high-current motor control, air-cooled construction, industrial networking, and integration into demanding automation systems.
It is particularly appropriate for large industrial facilities where reliable motor control, substantial current capacity, centralized monitoring, and flexible speed regulation are important parts of the overall electrical and automation design.