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Allen-Bradley 20G1ALD710AN0NNNNN PowerFlex 755 Air-Cooled AC Drive

1. Product Overview

The Allen-Bradley 20G1ALD710AN0NNNNN is a high-power PowerFlex 755 Air-Cooled AC Drive designed for large industrial motor-control applications.

With a 710 A current rating, this model is intended for substantial three-phase AC motors used in demanding industrial equipment.

The drive belongs to the PowerFlex 755 family and is designed for applications where motor speed regulation, controlled acceleration and deceleration, automation-system integration, diagnostics, and high electrical capacity are required.

The 710 A configuration is one of the larger single-frame air-cooled drive ratings in this PowerFlex 755 range.

It is particularly suitable for large pumps, fans, blowers, conveyors, compressors, material-handling equipment, process machinery, mining equipment, water systems, and other large rotating machines.

The combination of a large Frame 8 construction, 480 VAC three-phase operation, forced-air cooling, high current capacity, and industrial communication capabilities makes this model suitable for large-scale plant automation systems.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product family	PowerFlex
Product series	PowerFlex 755
Product type	Air-Cooled AC Drive
Model	20G1ALD710AN0NNNNN
Drive category	High-power industrial AC drive
Frame	Frame 8
Cooling	Forced air / air cooled
Voltage class	480 VAC
Phase	Three phase
Current class	710 A
Primary function	Variable-frequency AC motor control
Typical installation	Large industrial cabinet / MCC-style installation
Typical applications	Pumps, fans, conveyors, compressors, process machinery

The PowerFlex 755 series is intended for industrial applications that require more capability than a basic compact VFD.

It is designed for integration into larger motor-control and automation systems where the drive needs to communicate with the control system and provide operating and diagnostic information.

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3. Main Technical Parameters

Parameter	Specification
Model	20G1ALD710AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product type	Air-Cooled AC Drive
Input voltage	480 VAC class
Input phase	3 phase
Current rating	710 A
Light-Duty rating	Approximately 650 HP
Normal-Duty rating	Approximately 600 HP
Heavy-Duty rating	Approximately 450 HP
Frame size	Frame 8
Cooling method	Forced air
Input type	AC input with precharge
External DC terminals	No external DC terminals in this configuration
Filtering	Filtered configuration
CM configuration	CM jumper removed configuration
Dynamic braking	None / no integrated dynamic-braking configuration
Operator interface	Blank / No HIM configuration
Enclosure style	Type 1 / IP20 class
Cabinet depth class	Approximately 800 mm MCC-style
Communication	Industrial network integration
Typical network architecture	EtherNet/IP-based
Motor type	Large three-phase AC motor
Mounting orientation	Vertical
Installation style	Large industrial cabinet / MCC-style
Approximate width	600 mm class
Approximate height	2453 mm class
Approximate depth	800 mm class
Approximate weight	Approximately 620–725 kg
Application level	High-power industrial
Typical duty	Light Duty / Normal Duty / Heavy Duty according to application
Typical motor range	Large industrial motors
Main use	Variable-speed motor control

The dimensional and weight values are suitable for preliminary engineering and planning.

The final mechanical dimensions and shipping weight can vary according to the complete equipment configuration, cabinet arrangement, accessories and packaging.

For actual lifting, transportation, floor-loading and installation work, the final mechanical documentation should be treated as the controlling reference.

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4. Model Number Identification

The complete catalog number is:

20G1ALD710AN0NNNNN

The model number identifies a specific PowerFlex 755 configuration rather than simply identifying a generic 710 A VFD.

The 20G1 section identifies the PowerFlex 755 product family.

The ALD configuration identifies the relevant air-cooled drive arrangement.

The 710 portion identifies the 710 A current class.

The AN0 portion identifies the specific configuration arrangement.

The remaining characters identify additional factory configuration details.

This distinction is important when replacing an existing drive.

A 710 A drive with a different suffix may have different interface, filter, enclosure, braking, input, or control arrangements.

Therefore, the entire catalog number should be considered when ordering a replacement.

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5. 710 A Current Rating

The 710 A current rating is the defining electrical characteristic of this model.

This places the 20G1ALD710AN0NNNNN in the large industrial drive category.

The approximate associated motor power classes are:

Duty Class	Approximate Power Rating
Light Duty	650 HP
Normal Duty	600 HP
Heavy Duty	450 HP

These ratings provide a useful starting point for application selection.

However, actual drive sizing should be based on motor nameplate current, duty cycle, overload requirements, operating temperature, switching conditions, acceleration requirements, and the mechanical load.

Horsepower should not be the only selection criterion.

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6. Light-Duty Operation

The approximately 650 HP Light-Duty rating makes this drive suitable for large variable-torque applications where the motor normally operates under relatively predictable load conditions.

Typical applications can include:

• Large centrifugal pumps.
• Large centrifugal fans.
• Industrial blowers.
• Cooling systems.
• Ventilation systems.
• Water circulation equipment.

These applications often have relatively stable torque characteristics.

The drive can adjust motor speed according to process demand while maintaining controlled operation.

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7. Normal-Duty Operation

The approximately 600 HP Normal-Duty rating provides substantial capacity for general industrial applications.

Potential applications include:

• Large pumps.
• Large fans.
• Conveyors.
• Process machinery.
• Material-handling systems.
• Industrial production equipment.

Normal-Duty selection is generally appropriate when the application requires more capability than a simple variable-torque load but does not continuously demand the highest overload performance.

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8. Heavy-Duty Operation

The approximately 450 HP Heavy-Duty rating is intended as a reference for applications with greater torque and overload demands.

Heavy-duty applications can include:

• Heavy conveyors.
• Crushers.
• Mixers.
• Extruders.
• Material-handling equipment.
• High-inertia machinery.
• Machines with frequent acceleration and deceleration.

The heavy-duty rating should be evaluated together with the actual overload duration and cycle.

A machine with frequent high-torque acceleration may require a different sizing approach from a machine that operates continuously at a stable load.

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9. 480 VAC Three-Phase Operation

The 20G1ALD710AN0NNNNN is designed for the 480 VAC three-phase industrial voltage class.

This voltage level is widely used in industrial power systems.

At high motor power, three-phase 480 VAC operation allows substantial mechanical power to be delivered while keeping the electrical current within a practical range.

At 710 A, however, the incoming power system remains a major engineering consideration.

The electrical installation should be designed around the actual available supply capacity, protective equipment, conductors, grounding system, short-circuit conditions, motor cable arrangement, and applicable installation requirements.

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10. AC Input with Precharge

The drive uses an AC input with precharge arrangement.

A large VFD contains a DC-link section that includes energy-storage components.

When power is initially applied, these components must be charged.

Without controlled precharge, the initial charging current could become very large.

The precharge system manages this process and allows the drive to transition into normal operation in a controlled manner.

For a 710 A drive, this is an important part of the overall power-conversion architecture.

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11. No External DC Terminals

The specified configuration does not provide external DC terminals for general external DC-bus connection.

This characteristic should be considered during system design.

Applications involving:

• Common DC buses.
• Regenerative power systems.
• External DC sources.
• DC energy-sharing arrangements.

should be reviewed against the exact drive configuration before equipment is selected.

The drive still contains its internal DC-link power-conversion stage as part of the normal AC-to-DC-to-AC conversion process.

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12. Air-Cooled Construction

The 20G1ALD710AN0NNNNN uses an air-cooled architecture.

At a current level of 710 A, the power section generates substantial heat during operation.

The cooling system uses forced air to move heat away from the power electronics.

This means installation ventilation is extremely important.

The equipment should have:

• Adequate airflow.
• Appropriate cabinet ventilation.
• Clean air passages.
• Suitable ambient temperature.
• Correct maintenance clearance.
• Proper cooling-fan operation.

The surrounding cabinet or electrical room should be designed so that heated air does not simply recirculate back into the drive’s air intake.

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13. Frame 8 Construction

The drive is a Frame 8 configuration.

This is a large physical platform designed for high-power applications.

The frame accommodates substantial power components, bus structures, electrical terminals, cooling equipment and supporting hardware.

Compared with compact variable-frequency drives, the physical installation requirements are considerably more demanding.

A Frame 8 drive should be treated as a major industrial electrical assembly.

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14. Large Industrial Installation

The large physical size of this model makes cabinet and electrical-room planning important.

A preliminary mechanical envelope of approximately:

2453 mm height × 600 mm width × 800 mm depth

can be used for initial planning.

The approximate weight can be considered in the range of:

620–725 kg

for preliminary handling calculations.

These figures are not intended to replace the final mechanical drawing.

The final configuration, cabinet construction, accessories and packaging can affect the actual delivered dimensions and weight.

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15. Embedded Industrial Communication

The PowerFlex 755 platform is designed for integration into industrial automation networks.

This allows the drive to become part of a larger control architecture.

A control system can exchange information such as:

• Start commands.
• Stop commands.
• Speed references.
• Output frequency.
• Motor current.
• Drive status.
• Fault status.
• Warning information.
• Diagnostic information.
• Operating conditions.

This is particularly useful when a plant contains a large number of drives.

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16. EtherNet/IP-Based Automation

The PowerFlex 755 family can be integrated into automation architectures using EtherNet/IP-based communication.

For a large plant, network integration can reduce the amount of hardwired control required between the drive and the PLC.

The drive can communicate operating information back to the control system.

The PLC can then use that information for:

• Process control.
• Alarm handling.
• Production monitoring.
• Maintenance notification.
• Sequence control.
• Equipment interlocking.

This makes the drive more than a simple motor-speed controller.

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17. Filtering and CM Jumper Configuration

The requested AN0 configuration is associated with a filtered drive arrangement and a CM jumper removed configuration.

Filtering is important in large VFD installations because high-frequency switching can create electrical noise.

The complete installation should consider:

• Motor cable length.
• Cable routing.
• Grounding.
• Shielding.
• Cabinet bonding.
• Communication cable routing.
• Motor insulation.
• EMC requirements.

The CM configuration should also be considered in relation to the grounding arrangement of the incoming power system.

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18. Dynamic Braking

The specified configuration is identified with no integrated dynamic braking.

This is important when the driven machine has significant stored mechanical energy.

Applications that may require special braking analysis include:

• Large high-inertia fans.
• Long conveyors.
• Hoisting systems.
• Rapid-stop machines.
• Overhauling loads.
• Large rotating equipment.

If the application requires substantial energy dissipation during deceleration, the complete braking strategy should be evaluated separately.

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19. No-HIM Configuration

The catalog configuration is associated with a Blank / No HIM arrangement.

This type of configuration can be useful when the drive is intended to be controlled primarily through an automation system rather than through a permanently mounted local operator interface.

For example, the drive can be installed inside a larger control system where:

• The PLC provides operating commands.
• The HMI provides operator controls.
• Network communication handles drive status.
• Engineering software is used during commissioning.

This can keep the main drive cabinet simpler and allow the plant control system to provide the operator interface.

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20. Main Applications

The 20G1ALD710AN0NNNNN can be used in many high-power industrial applications.

The major application categories include:

• Large water pumps.
• Process pumps.
• Cooling-water pumps.
• Large fans.
• Industrial blowers.
• Conveyors.
• Mining conveyors.
• Material-handling systems.
• Compressors.
• Mixers.
• Extruders.
• Process machinery.
• Cement equipment.
• Aggregate equipment.
• Steel-processing machinery.
• Industrial ventilation.
• Large air-handling systems.

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21. Large Pump Applications

Large pumps are one of the most common applications for high-power AC drives.

A process does not always require a pump to operate at full speed.

A variable-frequency drive allows motor speed to be adjusted according to actual process requirements.

Potential applications include:

• Water treatment.
• Wastewater systems.
• Cooling-water circulation.
• Industrial process water.
• Large irrigation systems.
• Chemical process systems.
• Municipal pumping.
• Industrial fluid transfer.

The actual suitability of the drive should be evaluated against the pump motor’s current and the complete pump operating curve.

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22. Fan and Blower Applications

Large fans and blowers can benefit from variable-speed operation.

The motor can be operated at different speeds depending on the required airflow.

Potential applications include:

• Furnace ventilation.
• Industrial exhaust.
• Dust collection.
• Combustion air.
• Process cooling.
• Industrial HVAC.
• Air-handling systems.
• Large ventilation systems.

For variable-torque fan applications, speed control can provide a useful method of matching motor operation to changing airflow requirements.

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23. Conveyor Applications

Large conveyors can place significant mechanical demands on the motor and drive.

A direct full-voltage motor start can generate a sudden mechanical load.

A variable-frequency drive allows acceleration to be programmed.

For example, the drive can gradually increase motor speed from zero to operating speed.

This can reduce sudden mechanical loading on:

• Gearboxes.
• Couplings.
• Shafts.
• Bearings.
• Conveyor belts.
• Drive pulleys.
• Mechanical structures.

Controlled stopping can provide similar benefits.

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24. Mining Applications

The 710 A current class is appropriate for consideration in large mining and material-handling systems.

Potential applications include:

• Ore conveyors.
• Bulk material conveyors.
• Crushers.
• Transfer systems.
• Aggregate processing.
• Material feeders.
• Large ventilation equipment.

Mining applications often involve high inertia, dust, long operating hours and demanding load cycles.

The complete drive and environmental installation must therefore be designed carefully.

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25. Cement and Aggregate Applications

Large motors are commonly used throughout cement and aggregate production.

Examples include:

• Conveyors.
• Crushers.
• Fans.
• Blowers.
• Mills.
• Pumps.
• Material-handling systems.

The ability to control motor speed can help coordinate production equipment with the process.

The drive’s network capabilities can also be incorporated into a plant-wide automation system.

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26. Compressor Applications

Large compressors can require substantial motor power and careful acceleration control.

The drive can be used where the compressor design permits variable-speed motor operation.

Application engineering should consider:

• Motor current.
• Starting torque.
• Acceleration time.
• Minimum operating speed.
• Maximum operating speed.
• Compressor load characteristics.
• Motor cooling.
• Process pressure.
• Mechanical resonance.
• Deceleration requirements.

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27. Process Machinery

The drive can also be used for large process machinery.

Examples include:

• Mixers.
• Agitators.
• Extruders.
• Processing machines.
• Continuous production equipment.
• Large rotating machinery.

In these systems, motor speed can directly influence production rate and process quality.

The drive can therefore become part of the process-control system.

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28. Product Advantages

28.1 High 710 A Current Capacity

The most obvious advantage is the high current capacity.

At 710 A, the drive can handle substantially larger motor loads than compact variable-frequency drives.

This makes it appropriate for large industrial equipment.

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28.2 High Motor Power Capability

The approximately 650 HP Light-Duty, 600 HP Normal-Duty and 450 HP Heavy-Duty ratings provide a broad application range.

This allows the drive to be matched to different mechanical load characteristics.

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28.3 Large Frame 8 Architecture

The Frame 8 design provides the physical capacity needed for large power electronics and high-current connections.

It is intended for large industrial installations rather than small machine panels.

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28.4 Air-Cooled Construction

Forced-air cooling provides a practical cooling method for a large industrial drive.

Proper cabinet ventilation and maintenance are important to keep the cooling system operating effectively.

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28.5 Variable-Speed Operation

The drive can regulate motor speed rather than simply switching the motor between on and off.

This is useful for pumps, fans, conveyors and process equipment.

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28.6 Controlled Acceleration

The motor can be brought up to operating speed using a programmed acceleration profile.

This can reduce mechanical shock and provide more controlled machine startup.

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28.7 Controlled Deceleration

The drive can also provide controlled stopping according to the application requirements.

The required braking method should be evaluated separately for high-inertia or regenerative loads.

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28.8 Automation Integration

The PowerFlex 755 architecture is designed for integration into larger industrial control systems.

This is valuable in plants where multiple drives must be monitored and coordinated.

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28.9 Diagnostic Capability

Operating and fault information can be incorporated into the maintenance system.

This can help technicians identify abnormal conditions more quickly.

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28.10 Flexible Industrial Applications

The combination of current capacity, duty ratings, networking and industrial construction makes the drive suitable for many different types of machinery.

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29. Energy Management Applications

Variable-speed operation can be particularly useful in variable-torque applications.

Large centrifugal pumps and fans are common examples.

Instead of operating continuously at maximum speed, the motor can be adjusted according to actual process requirements.

The resulting energy performance depends on the complete system.

Important factors include:

• Operating hours.
• Load profile.
• Required flow.
• Required pressure.
• Motor efficiency.
• Pump or fan efficiency.
• Control strategy.
• System resistance.

Therefore, the drive should be viewed as an enabling component of an energy-management strategy rather than as a guarantee of a particular energy saving.

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30. Dimensions and Weight

The large physical size of the 20G1ALD710AN0NNNNN should be considered during the earliest stage of equipment planning.

Mechanical Parameter	Approximate Value
Model	20G1ALD710AN0NNNNN
Height	Approximately 2453 mm
Width	Approximately 600 mm
Depth	Approximately 800 mm
Weight	Approximately 620–725 kg
Frame	Frame 8
Cooling	Forced air
Installation	Vertical
Cabinet style	MCC-style / large industrial cabinet
Handling	Heavy industrial lifting equipment normally required

The dimensions and weight above should be regarded as preliminary planning values.

The actual final equipment configuration can affect the physical dimensions and delivered weight.

For shipping, floor loading, lifting and cabinet design, the final mechanical documentation should be used.

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31. Mechanical Installation Requirements

The approximately 2.45 m height requires sufficient vertical clearance.

The approximately 800 mm depth requires a suitably deep electrical cabinet or MCC arrangement.

The weight approaching several hundred kilograms requires careful transportation planning.

The installation area should be checked for:

• Floor strength.
• Access doors.
• Lifting access.
• Maintenance space.
• Ventilation.
• Cable entry.
• Cabinet depth.
• Service clearance.

This is especially important when replacing an older drive with a different physical configuration.

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32. Electrical Installation

The 710 A current class requires careful electrical engineering.

The installation should consider:

• Incoming power.
• Protective devices.
• Disconnecting equipment.
• Grounding.
• Motor cables.
• Cable routing.
• Short-circuit rating.
• EMC.
• Harmonics.
• Motor insulation.
• Control wiring.
• Communication wiring.

The incoming electrical system must have adequate capacity for the drive.

The motor feeder should be selected based on the actual motor current and installation conditions rather than only the drive’s nominal horsepower.

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33. Motor Selection

The drive should be matched to the actual motor.

Important motor parameters include:

Motor Parameter	Why It Matters
Rated voltage	Must match the drive system
Full-load current	Primary drive sizing factor
Horsepower	Determines general power class
Base frequency	Required for motor control
Base speed	Important for speed regulation
Service factor	Helps define operating margin
Motor type	Determines control requirements
Encoder feedback	Required for certain control strategies
Starting torque	Important for high-inertia loads
Cooling method	Important at reduced speed
Insulation	Important for VFD operation

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34. Communication and Control Architecture

A typical industrial system can be organized as:

PLC → Industrial Network → PowerFlex 755 → Large AC Motor → Mechanical Load

The PLC provides operating commands and speed references.

The drive converts the incoming electrical power into controlled motor power.

The motor produces mechanical torque.

The machine performs the industrial process.

Drive status and diagnostic information can then be returned to the PLC or supervisory control system.

This architecture is particularly useful for large automated production systems.

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35. Maintenance Considerations

Large air-cooled drives require an appropriate maintenance program.

Cooling fans should be inspected periodically.

Air passages should be kept clean.

Electrical connections should be inspected according to the plant maintenance procedure.

The cabinet environment should be monitored for dust and contamination.

Repeated faults should not simply be reset without investigating their cause.

Potential causes can include:

• Motor overload.
• Mechanical overload.
• Excessive ambient temperature.
• Cooling failure.
• Incorrect parameters.
• Electrical supply problems.
• Communication faults.
• Motor cable problems.
• Mechanical equipment problems.

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36. Environmental Considerations

The drive’s environment has a direct effect on service life.

Important conditions include:

• Temperature.
• Humidity.
• Dust.
• Corrosive gases.
• Altitude.
• Vibration.
• Air quality.
• Ventilation.

A high-power air-cooled drive is particularly sensitive to restricted airflow.

For industrial environments with large amounts of dust or corrosive contaminants, the enclosure and ventilation arrangement should be carefully designed.

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37. Five Recommended Related PowerFlex 755 Models

The following models are closely related to the 20G1ALD710AN0NNNNN.

Model	Current	Light Duty	Normal Duty	Heavy Duty	Main Relationship
20G1ALD545AN0NNNNN	545 A	500 HP	450 HP	350 HP	Lower-current related model
20G1ALD617AN0NNNNN	617 A	600 HP	500 HP	400 HP	Lower-current related model
20G1ALD617AN4NNNNN	617 A	600 HP	500 HP	400 HP	Same PowerFlex 755 family
20G1ALD710AN2NNNNN	710 A	650 HP	600 HP	450 HP	Same 710 A class, alternate configuration
20G1ALD740AN0NNNNN	740 A	700 HP	650 HP	500 HP	Higher-current related model

These models cover a useful range around the requested 710 A class.

The 545 A and 617 A models can be considered when the application requires less current.

The 740 A model can be considered when additional current and motor capacity are required.

The 710 A AN2 configuration is particularly relevant when the same electrical capacity is required but a different configuration is needed.

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38. Related Model Comparison

Model	Voltage Class	Current	LD	ND	HD	Frame
20G1ALD545AN0NNNNN	480 VAC	545 A	500 HP	450 HP	350 HP	8
20G1ALD617AN0NNNNN	480 VAC	617 A	600 HP	500 HP	400 HP	8
20G1ALD617AN4NNNNN	480 VAC	617 A	600 HP	500 HP	400 HP	8
20G1ALD710AN0NNNNN	480 VAC	710 A	650 HP	600 HP	450 HP	8
20G1ALD710AN2NNNNN	480 VAC	710 A	650 HP	600 HP	450 HP	8
20G1ALD740AN0NNNNN	480 VAC	740 A	700 HP	650 HP	500 HP	8

The 710 A and 740 A models are useful when the application is near the upper end of the 600 HP class.

The exact configuration suffix should always be checked because two models with the same current and horsepower ratings can have different configuration details.

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39. Five Same-Brand Popular Models

For comparison with other products in the same brand portfolio, the following five models represent different drive sizes and application classes.

Model	Product Family	General Application	Product Scale
25B-D010N104	PowerFlex 525	Compact machine motor control	Small / medium
25C-D010N103	PowerFlex 527	Networked machine control	Small / medium
20F11NC2P1JA0NNNNN	PowerFlex 753	Industrial motor control	Medium / large
20F11NC8P0JA0NNNNN	PowerFlex 753	Larger industrial equipment	Large
20G1ALD710AN0NNNNN	PowerFlex 755	High-power motor control	Very large

These models should not be treated as direct replacements for one another.

The smaller PowerFlex families are intended for considerably smaller motor applications.

The PowerFlex 753 and PowerFlex 755 families are designed for more demanding industrial installations.

The requested 20G1ALD710AN0NNNNN is specifically a large Frame 8, high-current drive.

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40. Same-Brand Application Comparison

Model	Typical Application Scale	Example Applications
25B-D010N104	Small / medium	Machine conveyors, pumps, fans
25C-D010N103	Small / medium	Networked machine automation
20F11NC2P1JA0NNNNN	Medium / large	Industrial pumps, fans, conveyors
20F11NC8P0JA0NNNNN	Large	Industrial production equipment
20G1ALD710AN0NNNNN	Very large	Large pumps, fans, conveyors, compressors

This comparison illustrates the difference in intended application scale.

The 20G1ALD710AN0NNNNN is designed for applications requiring hundreds of amps and very large motor power.

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41. Application Selection Table

Application	Typical Requirement	20G1ALD710AN0NNNNN
Large centrifugal pump	High-power variable speed	Suitable when correctly sized
Large fan	Variable-speed operation	Suitable
Industrial blower	High-power motor control	Suitable
Long conveyor	Controlled acceleration	Suitable
Mining conveyor	High torque / large motor	Suitable when duty is correctly selected
Crusher	High torque	Application dependent
Compressor	Large motor / controlled speed	Application dependent
Mixer	High torque	Application dependent
Extruder	Process speed control	Application dependent
Material handling	High-power motor control	Suitable when correctly sized
Water system	Large pump motor	Suitable
Industrial ventilation	Large fan/blower	Suitable

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42. Product Advantages Summary

Feature	Practical Industrial Benefit
710 A current	Supports very large motors
650 HP LD	Suitable for large variable-torque applications
600 HP ND	Suitable for substantial general industrial loads
450 HP HD	Supports demanding motor applications
480 VAC	Compatible with common industrial power systems
Three phase	Suitable for large industrial AC motors
Frame 8	Large power-handling architecture
Air cooled	Practical high-power cooling arrangement
AC precharge	Controlled DC-link charging
Variable speed	Allows process-speed adjustment
Controlled acceleration	Reduces mechanical starting shock
Network integration	Supports plant automation
Diagnostics	Supports troubleshooting
Filtered configuration	Helps manage electrical noise
No-HIM configuration	Suitable for centralized control architectures

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43. Product Selection Checklist

Before selecting the 20G1ALD710AN0NNNNN for a new installation or replacement, the following should be checked.

Selection Item	Required Check
Model	20G1ALD710AN0NNNNN
Supply voltage	Confirm 480 VAC
Supply phase	Confirm three phase
Motor voltage	Confirm motor nameplate
Motor current	Confirm full-load current
Motor horsepower	Confirm actual rating
Duty	Confirm LD / ND / HD
Acceleration	Determine required ramp
Deceleration	Determine braking requirements
Motor type	Confirm compatibility
Feedback	Determine encoder/feedback requirements
Communication	Confirm control-network requirements
Cabinet space	Check approximately 2453 × 600 × 800 mm planning envelope
Weight	Plan for approximately 620–725 kg
Cooling	Verify adequate airflow
Environment	Check temperature, dust and humidity
Grounding	Verify grounding system
Motor cable	Verify cable size and routing
Protective equipment	Coordinate upstream protection
Final configuration	Verify complete catalog number

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44. Mechanical Planning Table

Mechanical Specification	Preliminary Planning Value
Model	20G1ALD710AN0NNNNN
Frame	8
Height	Approx. 2453 mm
Width	Approx. 600 mm
Depth	Approx. 800 mm
Weight	Approx. 620–725 kg
Installation orientation	Vertical
Cooling	Forced air
Cabinet type	Large industrial / MCC-style
Floor installation	Required for large-frame arrangement
Handling	Industrial lifting equipment
Service access	Required

The actual final mechanical envelope can differ depending on the exact configuration.

The weight should also be verified before transportation because packaging and associated cabinet sections can change the shipping weight.

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45. Electrical Specification Summary

Electrical Parameter	Specification
Model	20G1ALD710AN0NNNNN
Input voltage	480 VAC class
Input phase	3 phase
Current class	710 A
Light Duty	650 HP
Normal Duty	600 HP
Heavy Duty	450 HP
Input type	AC input
Precharge	Yes
External DC terminals	No
Cooling	Forced air
Frame	8
Filtering	Filtered
CM configuration	Jumper removed
Dynamic braking	None
Operator interface	Blank / No HIM
Network integration	Industrial Ethernet architecture
Motor control	Variable-frequency AC motor control

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46. Practical Replacement Considerations

When replacing an existing large drive, matching the horsepower alone is not sufficient.

For example, an old drive may be labeled for a certain horsepower but have a different current rating, overload characteristic or configuration.

The following should be compared:

Voltage + current + duty + motor + braking + communication + filtering + enclosure + cooling + dimensions + weight + complete catalog number.

This approach reduces the risk of selecting a drive that appears electrically similar but requires unexpected changes to the installation.

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47. Difference Between 710 A and 740 A Versions

The 710 A and 740 A versions are closely related within the same high-power PowerFlex 755 family.

Characteristic	710 A Model	740 A Model
Model	20G1ALD710AN0NNNNN	20G1ALD740AN0NNNNN
Current	710 A	740 A
Light Duty	650 HP	700 HP
Normal Duty	600 HP	650 HP
Heavy Duty	450 HP	500 HP
Frame	8	8
Voltage class	480 VAC	480 VAC
Product family	PowerFlex 755	PowerFlex 755
Application scale	Very large	Very large

The 740 A model provides additional current capacity and higher associated power ratings.

The 710 A model remains a substantial high-power drive in its own right.

Actual selection should be based on motor current and application duty rather than selecting the larger drive simply because its horsepower rating is higher.

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48. Difference Between 617 A and 710 A Versions

The 617 A and 710 A versions are also closely related.

Characteristic	617 A Version	710 A Version
Model	20G1ALD617AN0NNNNN	20G1ALD710AN0NNNNN
Current	617 A	710 A
Light Duty	600 HP	650 HP
Normal Duty	500 HP	600 HP
Heavy Duty	400 HP	450 HP
Frame	8	8
Voltage	480 VAC	480 VAC
Cooling	Air cooled	Air cooled
Product family	PowerFlex 755	PowerFlex 755

The 710 A version provides a higher current class.

This can be relevant when the motor’s full-load current is above the practical range of the 617 A version or when the application requires additional capacity.

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49. Five Related Models – Final Recommendation Table

Model	Current	LD	ND	HD	Frame	Main Reason to Consider
20G1ALD545AN0NNNNN	545 A	500 HP	450 HP	350 HP	8	Lower-capacity related model
20G1ALD617AN0NNNNN	617 A	600 HP	500 HP	400 HP	8	Closely related lower-current model
20G1ALD617AN4NNNNN	617 A	600 HP	500 HP	400 HP	8	Alternate configuration
20G1ALD710AN2NNNNN	710 A	650 HP	600 HP	450 HP	8	Same current class, alternate configuration
20G1ALD740AN0NNNNN	740 A	700 HP	650 HP	500 HP	8	Higher-capacity model

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50. Five Same-Brand Models – Final Comparison

Model	Series	General Scale	General Application
25B-D010N104	PowerFlex 525	Small / medium	Compact machine motor control
25C-D010N103	PowerFlex 527	Small / medium	Networked machine control
20F11NC2P1JA0NNNNN	PowerFlex 753	Medium / large	Industrial motor control
20F11NC8P0JA0NNNNN	PowerFlex 753	Large	Large industrial machinery
20G1ALD710AN0NNNNN	PowerFlex 755	Very large	High-power industrial motor control

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51. Final Product Description

The Allen-Bradley 20G1ALD710AN0NNNNN is a high-capacity PowerFlex 755 Air-Cooled AC Drive designed for large industrial motor-control applications.

With a 710 A current rating, approximately 650 HP Light Duty, 600 HP Normal Duty, and 450 HP Heavy Duty capability, the drive is intended for substantial three-phase motor loads.

Its 480 VAC three-phase architecture and Frame 8 construction place it firmly in the large industrial drive category.

The drive is suitable for applications such as large pumps, fans, blowers, conveyors, compressors, mining equipment, material-handling systems, process machinery, water systems, cement equipment and other high-power rotating machinery.

The air-cooled architecture provides forced-air heat removal suitable for large electrical installations, provided that the cabinet or electrical room has adequate ventilation and appropriate environmental conditions.

The AC input with precharge configuration provides controlled charging of the internal DC-link system during startup.

The no-external-DC-terminal configuration should be taken into account when designing common-bus or regenerative systems.

The filtered configuration and CM jumper arrangement should also be considered as part of the complete grounding and EMC design.

The drive’s industrial network capability allows it to be integrated into a larger automation architecture.

A PLC can provide operating commands and speed references while receiving drive status, motor information, warnings and fault information.

This is particularly useful in large facilities where many motor drives must be coordinated through a common control system.

The No-HIM configuration can also be useful where the operator interface is provided by a central HMI or supervisory control system rather than a dedicated local keypad on the drive.

The physical size of this model must not be overlooked.

For preliminary planning, approximately 2453 mm high × 600 mm wide × 800 mm deep and approximately 620–725 kg can be allowed for.

Because large Frame 8 equipment can vary in final mechanical configuration, these figures should be treated as preliminary engineering values.

The final mechanical drawing and shipping information should be used for actual lifting, transportation, floor-loading and cabinet calculations.

The major advantages of the 20G1ALD710AN0NNNNN are its high current capacity, large motor capability, Frame 8 construction, industrial network integration, variable-speed control, controlled acceleration and deceleration, air-cooled architecture, and suitability for large automated industrial systems.

For applications requiring less current, the 617 A and 545 A related models provide lower-capacity alternatives.

For applications requiring additional capacity, the 740 A model provides a closely related higher-current option.

The 710 A AN2 configuration can also be considered when the same basic electrical capacity is required with a different configuration arrangement.

For a new installation, the most important selection factors are the motor’s actual full-load current, voltage, duty cycle, overload requirements, acceleration and deceleration requirements, braking needs, communication architecture, environmental conditions, cabinet dimensions and final catalog configuration.

For replacement work, the complete catalog number should be matched rather than selecting the replacement only by horsepower.

The 20G1ALD710AN0NNNNN is therefore best regarded as a complete high-power industrial motor-control platform.

It combines a 710 A power class with the PowerFlex 755 architecture and is intended for large machines where stable speed control, controlled starting, automation integration and high electrical capacity are required.