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20G11LE825AN0NNNNN — PowerFlex 755 High-Power AC Drive

1. Product Overview

The 20G11LE825AN0NNNNN is a high-power AC variable frequency drive designed for large three-phase industrial motor applications.

It belongs to the PowerFlex 755 product family and is positioned at the high-power end of the series. With an output current rating of 825 A, the drive is intended for large motors used in demanding industrial processes where accurate speed control, controlled acceleration, reliable operation and integration with an industrial automation system are important.

The drive is designed for applications where a conventional fixed-speed motor arrangement is not sufficient. By controlling motor frequency and voltage, it allows the motor to operate at different speeds according to the requirements of the production process.

Typical applications include large pumps, fans, blowers, conveyors, compressors, mixers, crushers, material-handling equipment and other heavy industrial machinery.

The 20G11LE825AN0NNNNN is particularly suitable for large installations where a high-capacity drive is required and where the motor needs to be integrated into a larger automation and control system.

For a new installation, the exact electrical, mechanical and environmental requirements should always be checked against the actual motor and system design.

2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Series	PowerFlex 755
Product Family	PowerFlex 750-Series AC Drives
Product Type	High-Power AC Variable Frequency Drive
Model	20G11LE825AN0NNNNN
Drive Configuration	Air-Cooled AC Drive
Voltage Class	600 VAC
Phase	Three Phase
Rated Output Current	825 A
Cooling Method	Forced Air
Enclosure Class	Type 1 / IP20
Frame	Frame 9
Installation Style	MCC-Style Configuration
Communication	Embedded EtherNet/IP
Input Configuration	AC Input with Precharge
DC Terminals	Available in the specified configuration
EMC Filtering	EMC Filter
Dynamic Braking	None
Local HIM	Blank / No HIM
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent

3. Main Technical Parameters

Parameter	Specification
Model	20G11LE825AN0NNNNN
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Input Voltage Class	600 VAC
Input Phase	3 Phase
Output Current	825 A
Light Duty Rating	950 HP
Normal Duty Rating	900 HP
Heavy Duty Rating	750 HP
Approx. Light Duty Power	708.7 kW
Approx. Normal Duty Power	671.4 kW
Approx. Heavy Duty Power	559.5 kW
Frame Size	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Installation	MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Input Type	AC Input with Precharge
DC Terminals	Yes
EMC Filter	Yes
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Local Interface	Blank / No HIM
Motor Application	Large Three-Phase AC Motors
Intended Environment	Industrial
Duty Selection	Light Duty / Normal Duty / Heavy Duty

4. Motor Power Ratings

One of the most important characteristics of the 20G11LE825AN0NNNNN is its ability to operate with different motor duty classifications.

The drive is rated for approximately 950 HP under Light Duty, 900 HP under Normal Duty and 750 HP under Heavy Duty.

These ratings should not simply be treated as three different motor sizes that can always be connected to the drive.

The correct rating depends on the mechanical load, overload requirements, acceleration requirements and operating conditions of the actual application.

Duty Classification	Motor Rating	Approximate Power
Light Duty	950 HP	708.7 kW
Normal Duty	900 HP	671.4 kW
Heavy Duty	750 HP	559.5 kW

For a pump or fan with a relatively predictable variable-torque load, the Light Duty rating may be appropriate.

For a conveyor, crusher or other high-torque machine, the Heavy Duty rating may be more important.

The motor nameplate current should always be considered together with the horsepower rating when selecting the drive.

5. Electrical Characteristics

The 20G11LE825AN0NNNNN is designed for the 600 VAC three-phase class.

The 825 A current capacity places the product in the high-power industrial drive category.

At this level of power, proper system engineering becomes particularly important. The incoming electrical supply, motor characteristics, protective equipment, grounding system, cable arrangement and installation environment all need to be considered.

The drive is intended to provide controlled electrical power to a large AC motor rather than simply switching the motor on and off.

The output frequency can be controlled to adjust motor speed according to the requirements of the process.

This approach is particularly useful in applications where the machine does not need to operate continuously at maximum speed.

6. Product Introduction

The 20G11LE825AN0NNNNN is a large-frame industrial drive intended for applications requiring substantial motor power and current capacity.

The product combines high-power motor control with industrial communication and a configuration suitable for integration into larger electrical and automation systems.

Unlike a compact drive intended for a small machine, this model is designed for large equipment installations.

Its 825 A output rating makes it suitable for motors in the several-hundred-kilowatt range and approaching the 1,000 HP class depending on the duty classification.

The drive can be used to control motor speed, acceleration and deceleration while also providing operational information to the automation system.

This makes it suitable for industrial equipment that requires both electrical power conversion and coordinated process control.

7. How the Product Works

A conventional AC motor connected directly to a fixed-frequency power supply generally operates close to its rated speed.

A variable frequency drive provides a different method of operation.

The drive receives electrical power from the incoming supply and converts it into a controlled output for the motor.

By changing the output frequency, the drive can change motor speed.

The drive can also adjust voltage and other operating parameters so that the motor can operate appropriately at different speeds and loads.

This provides several practical advantages.

A pump does not necessarily have to run at full speed when low flow is required.

A fan does not necessarily have to operate at maximum speed when the required airflow is reduced.

A conveyor can accelerate gradually instead of applying full mechanical force immediately.

A mixer can start under controlled conditions before reaching the required operating speed.

A compressor can adjust operating speed according to process demand.

8. Major Product Advantages

8.1 High Current Capacity

The 825 A output rating is the primary advantage of the model.

It enables the drive to control large industrial motors that are beyond the practical range of small and medium-sized inverters.

This makes the product suitable for large production machinery and heavy-duty process equipment.

8.2 High Horsepower Capability

The Light Duty rating reaches approximately 950 HP.

This places the model close to the 1,000 HP motor class and makes it suitable for large industrial installations.

The Normal Duty and Heavy Duty ratings provide additional flexibility for applications with different load characteristics.

8.3 Variable-Speed Operation

Variable-speed control allows the motor to operate at the speed required by the process.

This can improve process flexibility and can also reduce unnecessary full-speed operation.

In suitable pump and fan applications, reducing motor speed can produce significant energy savings.

Actual energy savings depend on the machine characteristics and operating profile.

8.4 Smooth Acceleration

Large motors can generate considerable mechanical stress during direct starting.

Controlled acceleration allows the machine to reach operating speed progressively.

This can help reduce stress on:

• Motor shafts
• Couplings
• Gearboxes
• Bearings
• Conveyor belts
• Pumps
• Fans
• Mechanical structures

8.5 Controlled Deceleration

The drive can also provide controlled stopping.

This is useful for large machines where an immediate stop could create unnecessary mechanical stress.

The specified configuration does not include dynamic braking, so applications requiring very rapid deceleration should be evaluated separately.

8.6 Industrial Network Integration

Embedded EtherNet/IP provides a convenient way to integrate the drive into an industrial automation architecture.

The control system can exchange information such as:

• Start and stop commands
• Speed reference
• Actual speed
• Output frequency
• Motor current
• Drive status
• Warning status
• Fault information
• Diagnostic information

This makes the drive suitable for centralized plant control.

8.7 Industrial-Scale Construction

The large-frame construction is intended for industrial electrical installations.

The 800 mm depth provides a substantial mechanical envelope for a high-power drive configuration.

Proper ventilation, service access and cable routing should be considered during installation planning.

9. Applications

9.1 Large Pump Systems

The 20G11LE825AN0NNNNN can be used for large industrial pumping systems.

Typical applications include:

• Process water pumps
• Cooling-water pumps
• Water circulation
• Water treatment
• Industrial fluid transfer
• Mining water systems
• Utility pumping
• Process plant pumps

Variable-speed control allows the pump to respond to changing flow or pressure requirements.

This can provide better process control than continuously operating the pump at maximum speed.

9.2 Large Fans and Blowers

Large fans can require substantial motor power.

The drive can adjust fan speed according to the required airflow.

Possible applications include:

• Industrial ventilation
• Furnace ventilation
• Dust collection
• Process-air systems
• Mining ventilation
• Cement production
• Steel production
• Large industrial buildings

Fan applications can benefit significantly from variable-speed operation because the power requirement changes substantially with speed.

9.3 Large Conveyors

Large conveyors often require high starting torque and substantial continuous power.

The drive can provide controlled acceleration and deceleration.

This can reduce mechanical shock and improve the starting behavior of the conveyor.

Potential applications include:

• Mining conveyors
• Bulk-material conveyors
• Aggregate handling
• Cement handling
• Material-transfer systems
• Production-line conveyors

9.4 Crushers

Crushing machinery can produce demanding load conditions.

The motor may experience significant torque requirements depending on the material being processed.

The high current capacity of the drive makes this type of application suitable for evaluation.

Typical industries include mining, aggregate processing and mineral processing.

9.5 Compressors

Large compressors can benefit from variable-speed operation.

The drive can adjust motor speed according to process requirements.

Potential benefits include smoother starting, flexible operating speed and better process control.

9.6 Mixers

Large industrial mixers can require high torque during startup, particularly when material is already present inside the mixing vessel.

Controlled acceleration can help the motor and mechanical system reach operating speed in a more controlled manner.

Potential applications include:

• Chemical processing
• Cement processing
• Mineral processing
• Pulp and paper
• General process manufacturing

9.7 Material Handling Equipment

The drive can also be used for heavy material-handling machinery.

Examples include:

• Bulk handling systems
• Transfer equipment
• Large conveyors
• Loading equipment
• Industrial transport machinery
• Heavy processing equipment

10. Mechanical Specifications

Mechanical Parameter	Specification
Frame	Frame 9
Installation Type	MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Enclosure	Type 1 / IP20
Cooling	Forced Air
Weight (kg)	Configuration-dependent
Shipping Weight (kg)	Configuration-dependent
Cabinet Weight (kg)	Configuration-dependent
Complete System Weight (kg)	Configuration-dependent
Service Clearance	Installation-dependent
Cable Entry Arrangement	Configuration-dependent

The 800 mm depth is an important reference dimension for the specified MCC-style configuration.

The complete height and width should not be assumed from the depth alone.

The final mechanical dimensions can depend on the exact packaged configuration and installation arrangement.

For transportation and structural planning, the actual configured equipment drawing should be used.

11. Weight Information

Because this is a large industrial packaged drive, the exact weight should not be represented by a single generic number without knowing the complete configuration.

Weight Item	Value
Drive Weight	Configuration-dependent
Enclosure Weight	Configuration-dependent
Shipping Weight	Configuration-dependent
Complete MCC Assembly Weight	Configuration-dependent
Weight (kg)	Configuration-dependent

This approach is particularly important for large industrial equipment because additional cabinet sections, wiring compartments, protection equipment and installation accessories can change the final shipping weight.

For lifting, transportation and floor-loading calculations, the final configured equipment data should always be used.

12. Communication and Automation

The embedded EtherNet/IP capability makes the product suitable for integration into a modern industrial automation system.

A typical system can include:

• PLC
• HMI
• Supervisory control
• Industrial Ethernet network
• Motor control system
• Process instrumentation
• Drive control
• Alarm management

The drive can provide operating data to the control system and receive commands from the automation system.

This can reduce the need for local manual operation and makes centralized monitoring possible.

13. EMC Filtering

The specified configuration includes an EMC filter.

Electromagnetic compatibility is an important consideration in large variable frequency drive installations.

The switching action of a high-power drive can generate electrical noise and high-frequency components.

Proper system installation should therefore consider:

• Grounding
• Cable shielding
• Motor cable routing
• Separation of power and control wiring
• Cabinet grounding
• Cable length
• Installation layout

The EMC filter should be considered as part of the complete installation rather than as a substitute for correct system wiring practices.

14. Dynamic Braking

The specified configuration does not include dynamic braking.

This point should be considered carefully when the drive is used with high-inertia machinery.

When a large rotating load is decelerated, stored mechanical energy must be managed.

Applications with:

• Very rapid stopping
• Frequent deceleration
• High-inertia loads
• Rapid cycling
• Regenerative operation

may require a different braking arrangement.

The braking requirements should therefore be evaluated during application engineering.

15. Local Operator Interface

The specified configuration is supplied with a blank / no HIM arrangement.

HIM refers to a Human Interface Module.

A no-HIM configuration can be appropriate where the drive is primarily operated through a PLC, HMI or centralized control system.

This type of arrangement is common in larger industrial plants where operators control equipment from a central control room.

16. Recommended Five Same-Series or Closely Related Models

The following models are useful for comparison when selecting a high-power drive in the same general family.

Model	Series	Voltage Class	Current	LD Rating	ND Rating	HD Rating	Depth	Weight (kg)
20G11LE760AN0NNNNN	PowerFlex 755	600 VAC	760 A	900 HP	800 HP	700 HP	800 mm	Configuration-dependent
20G11LE825JN0NNNNN	PowerFlex 755	600 VAC	825 A	950 HP	900 HP	750 HP	800 mm	Configuration-dependent
20G11LE825JN2NNNNN	PowerFlex 755	600 VAC	825 A	950 HP	900 HP	750 HP	800 mm	Configuration-dependent
20G11LE900AN0NNNNN	PowerFlex 755	600 VAC	900 A	1,000 HP	950 HP	800 HP	800 mm	Configuration-dependent
20G11LE980AN0NNNNN	PowerFlex 755	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	800 mm	Configuration-dependent

17. Related Model Comparison

17.1 20G11LE760AN0NNNNN

The 20G11LE760AN0NNNNN is a lower-current alternative within the same high-power family.

It is suitable when the motor current requirement is below the 825 A capacity but the application still requires a large industrial drive.

Parameter	Specification
Model	20G11LE760AN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Output Current	760 A
Light Duty	900 HP
Normal Duty	800 HP
Heavy Duty	700 HP
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Depth	800 mm
Weight (kg)	Configuration-dependent

17.2 20G11LE825JN0NNNNN

The 20G11LE825JN0NNNNN is the most closely related model to the specified product.

It maintains the same basic 825 A electrical class and is the model to consider when evaluating a current replacement configuration.

Parameter	Specification
Model	20G11LE825JN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Output Current	825 A
Light Duty	950 HP
Normal Duty	900 HP
Heavy Duty	750 HP
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Depth	800 mm
Communication	Embedded EtherNet/IP
Weight (kg)	Configuration-dependent

17.3 20G11LE825JN2NNNNN

The 20G11LE825JN2NNNNN provides another configuration within the same 825 A high-power class.

Parameter	Specification
Model	20G11LE825JN2NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Output Current	825 A
Light Duty	950 HP
Normal Duty	900 HP
Heavy Duty	750 HP
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Depth	800 mm
Weight (kg)	Configuration-dependent

17.4 20G11LE900AN0NNNNN

The 20G11LE900AN0NNNNN is a higher-current option.

It can be considered when the motor’s current requirement is approaching or exceeding the practical range of the 825 A model.

Parameter	Specification
Model	20G11LE900AN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Output Current	900 A
Light Duty	1,000 HP
Normal Duty	950 HP
Heavy Duty	800 HP
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Depth	800 mm
Weight (kg)	Configuration-dependent

17.5 20G11LE980AN0NNNNN

The 20G11LE980AN0NNNNN provides even greater current capability.

It is appropriate for evaluation in applications where a very large motor exceeds the practical current range of the 825 A and 900 A configurations.

Parameter	Specification
Model	20G11LE980AN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Output Current	980 A
Light Duty	1,100 HP
Normal Duty	1,000 HP
Heavy Duty	900 HP
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Depth	800 mm
Weight (kg)	Configuration-dependent

18. Five Popular Models from the Same Brand

The following models represent useful products from the same brand’s broader industrial drive portfolio. They cover different motor sizes and application requirements.

Model	Product Family	Voltage Class	Current / Capacity	Application Range	Cooling	Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	480 VAC class	10 A class	Small industrial motors	Fan cooled	Compact; configuration-dependent	Configuration-dependent
25B-D017N104	PowerFlex 525	480 VAC class	17 A class	Small / medium motors	Fan cooled	Compact; configuration-dependent	Configuration-dependent
25B-D027N114	PowerFlex 525	480 VAC class	27 A class	Medium industrial motors	Fan cooled	Compact; configuration-dependent	Configuration-dependent
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	77 A class	Medium / large motors	Forced air	Frame-dependent	Configuration-dependent
20G11LE825JN0NNNNN	PowerFlex 755	600 VAC	825 A	Large industrial motors	Forced air	800 mm depth class	Configuration-dependent

19. High-Power Model Selection Table

Model	Output Current	Voltage	LD	ND	HD	Depth	Cooling	Weight (kg)
20G11LE630AN0NNNNN	630 A	600 VAC	800 HP	700 HP	600 HP	800 mm	Forced Air	Configuration-dependent
20G11LE760AN0NNNNN	760 A	600 VAC	900 HP	800 HP	700 HP	800 mm	Forced Air	Configuration-dependent
20G11LE825AN0NNNNN	825 A	600 VAC	950 HP	900 HP	750 HP	800 mm	Forced Air	Configuration-dependent
20G11LE900AN0NNNNN	900 A	600 VAC	1,000 HP	950 HP	800 HP	800 mm	Forced Air	Configuration-dependent
20G11LE980AN0NNNNN	980 A	600 VAC	1,100 HP	1,000 HP	900 HP	800 mm	Forced Air	Configuration-dependent

20. Application Selection Guide

Application	Recommended Model	Main Consideration
Large centrifugal pump	20G11LE825AN0NNNNN	High-power variable-speed control
Large industrial fan	20G11LE760AN0NNNNN	Variable-torque operation
Large conveyor	20G11LE825AN0NNNNN	High current and controlled acceleration
Heavy conveyor	20G11LE825AN0NNNNN	Heavy Duty capability
Large compressor	20G11LE825AN0NNNNN	High-power speed control
Crusher	20G11LE825AN0NNNNN	High-current motor control
Large mixer	20G11LE825AN0NNNNN	High starting torque requirements
Very large motor	20G11LE900AN0NNNNN	Higher current capacity
Extra-large motor	20G11LE980AN0NNNNN	Highest capacity among the compared models
Replacement application	20G11LE825JN0NNNNN	Closely matched replacement configuration

21. Energy Efficiency Advantages

Variable-speed control can provide important energy advantages when the mechanical load does not require constant maximum speed.

This is especially relevant for centrifugal pumps and fans.

If a motor operates continuously at full speed while the process requires only partial output, the system may consume more energy than necessary.

By reducing motor speed, the drive can allow the machine to operate closer to the actual process requirement.

Potential benefits include:

• Reduced energy consumption
• Better process regulation
• Less mechanical stress
• Reduced unnecessary full-speed operation
• Improved operating flexibility

The actual energy savings depend heavily on the machine type and system operating conditions.

22. Advantages for Large Pump Systems

For large pump installations, the drive can provide controlled speed instead of relying entirely on fixed-speed operation.

The pump speed can be adjusted to maintain the required flow or pressure.

Potential benefits include:

• Better flow control
• Pressure control
• Smooth starting
• Reduced hydraulic shock
• Reduced mechanical stress
• Potential energy savings
• Improved process flexibility

23. Advantages for Large Fan Systems

Large fans can consume substantial electrical power.

Variable-speed control can allow the fan to operate according to actual airflow requirements.

This can be particularly useful in systems where demand changes throughout the production cycle.

The drive can therefore support a more flexible ventilation strategy and reduce unnecessary full-speed operation.

24. Advantages for Conveyor Systems

Large conveyors often experience high mechanical loads.

Starting a heavily loaded conveyor requires substantial torque.

Controlled acceleration can gradually bring the motor and conveyor up to speed.

This can help reduce stress on:

• Conveyor belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Drive mechanisms
• Mechanical structures

This is particularly valuable in long conveyors and heavy bulk-material systems.

25. Advantages for Compressors

Large compressors often have changing process requirements.

A variable-speed drive can allow motor speed to respond to those requirements.

Potential advantages include:

• Flexible operating speed
• Smooth acceleration
• Improved process control
• Reduced unnecessary full-speed operation
• Better integration with plant automation

26. Advantages for Process Machinery

Process equipment frequently requires different operating speeds during different stages of production.

The ability to control motor speed can therefore improve overall process flexibility.

Examples include:

• Mixing
• Material processing
• Crushing
• Pumping
• Ventilation
• Conveying
• Production machinery

The drive becomes part of the process-control system rather than simply acting as a motor starter.

27. Maintenance Considerations

A high-power drive requires an appropriate maintenance program.

Maintenance Area	Recommended Attention
Cooling Fans	Check operation, airflow and abnormal noise
Air Passages	Keep clean and unobstructed
Cabinet Interior	Prevent excessive dust accumulation
Electrical Connections	Inspect according to maintenance procedures
Grounding	Verify integrity
Motor Cables	Check condition and connections
Control Wiring	Inspect for loose or damaged connections
Communication Network	Monitor communication quality
Fault History	Review recurring faults
Environmental Conditions	Monitor temperature, humidity and contamination
Ventilation	Ensure adequate airflow
Mechanical Mounting	Check for secure installation

28. Installation Considerations

Because the 20G11LE825AN0NNNNN is a large-frame drive, installation planning is important.

The 800 mm depth should be considered during cabinet and electrical-room design.

Adequate space should be provided for:

• Power cable installation
• Control wiring
• Ventilation
• Inspection
• Maintenance
• Component replacement
• Service access

The final cabinet height and width should be established from the actual configured mechanical documentation rather than estimated from the model number alone.

29. Electrical Selection Checklist

Selection Item	Importance
Motor Voltage	Must be compatible with the drive system
Motor Nameplate Current	One of the most important sizing parameters
Motor HP	Used together with current and voltage
Duty Classification	Determines appropriate LD / ND / HD selection
Starting Torque	Important for conveyors, crushers and mixers
Overload Requirement	Must match the actual mechanical load
Ambient Temperature	Can influence thermal performance
Installation Altitude	May affect drive capability
Braking Requirement	Important for rapid stopping
Motor Cable Length	Must be considered during installation
EMC Requirements	Important for system compatibility
Communication Requirements	Must match the automation system
Enclosure Requirements	Must match the installation environment
Physical Dimensions	Critical for cabinet planning
Weight (kg)	Important for transportation and structural planning

30. Comparison: 20G11LE760AN0NNNNN vs. 20G11LE825AN0NNNNN

Parameter	20G11LE760AN0NNNNN	20G11LE825AN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	600 VAC	600 VAC
Output Current	760 A	825 A
Light Duty	900 HP	950 HP
Normal Duty	800 HP	900 HP
Heavy Duty	700 HP	750 HP
Frame	Frame 9	Frame 9
Cooling	Forced Air	Forced Air
Enclosure	Type 1 / IP20	Type 1 / IP20
Depth	800 mm	800 mm
Weight (kg)	Configuration-dependent	Configuration-dependent

The 825 A model provides additional current capacity and higher motor-power capability compared with the 760 A configuration.

31. Comparison: 20G11LE825AN0NNNNN vs. 20G11LE900AN0NNNNN

Parameter	20G11LE825AN0NNNNN	20G11LE900AN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	600 VAC	600 VAC
Output Current	825 A	900 A
Light Duty	950 HP	1,000 HP
Normal Duty	900 HP	950 HP
Heavy Duty	750 HP	800 HP
Frame	Frame 9	Frame 9
Cooling	Forced Air	Forced Air
Enclosure	Type 1 / IP20	Type 1 / IP20
Depth	800 mm	800 mm
Weight (kg)	Configuration-dependent	Configuration-dependent

The 900 A version should be considered when the motor current or application requirements exceed the practical capability of the 825 A model.

32. Key Product Strengths

Strength	Description
High Current	825 A output capability
High Motor Power	Up to 950 HP Light Duty
600 VAC Class	Designed for large industrial motor systems
Multiple Duty Ratings	LD, ND and HD ratings
Variable Speed	Flexible motor-speed control
Smooth Starting	Reduced mechanical starting shock
Controlled Stopping	More controlled deceleration
Network Integration	Embedded EtherNet/IP
Industrial Construction	Large-frame industrial configuration
Air Cooling	Forced-air cooling
Wide Application Range	Pumps, fans, conveyors, compressors and process equipment
High-Power Capability	Suitable for large industrial machinery

33. Product Positioning

The 20G11LE825AN0NNNNN can be positioned as a high-capacity industrial drive for large motor applications.

Its 825 A current rating places it between lower-capacity high-power models and larger 900 A or 980 A configurations.

This makes it useful when an application requires more capacity than a 760 A model but does not necessarily require the larger current capability of a 900 A or 980 A unit.

The model is therefore a practical choice for large industrial equipment where motor current, power and duty requirements fall within its operating range.

34. Recommended Model Summary

Category	Model	Main Reason for Recommendation
Lower Current Alternative	20G11LE760AN0NNNNN	760 A high-power configuration
Closest Related Replacement	20G11LE825JN0NNNNN	Same 825 A class
Alternate 825 A Configuration	20G11LE825JN2NNNNN	Same high-power electrical class
Higher Current Alternative	20G11LE900AN0NNNNN	900 A capacity
Maximum Compared Capacity	20G11LE980AN0NNNNN	980 A capacity
Popular Compact Family Model	25B-D010N104	Smaller industrial drive applications
Popular Compact Family Model	25B-D017N104	Small and medium motor applications
Popular Compact Family Model	25B-D027N114	Medium motor applications
Popular Architecture Drive	20F11ND077AA0NNNNN	Medium / large motor applications
High-Power Family Model	20G11LE825JN0NNNNN	Large motor applications

35. Final Technical Summary

Item	20G11LE825AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	High-Power AC Variable Frequency Drive
Voltage Class	600 VAC
Phase	Three Phase
Output Current	825 A
Light Duty	950 HP
Normal Duty	900 HP
Heavy Duty	750 HP
Light Duty Approx. Power	708.7 kW
Normal Duty Approx. Power	671.4 kW
Heavy Duty Approx. Power	559.5 kW
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Installation Style	MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Input	AC with Precharge
DC Terminals	Yes
EMC Filter	Yes
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Local HIM	Blank / No HIM
Main Applications	Pumps, fans, conveyors, compressors, crushers, mixers and material handling
Main Advantage	High-current, high-power variable-speed motor control

36. Conclusion

The 20G11LE825AN0NNNNN is a high-power industrial AC drive designed for large three-phase motor applications.

Its 825 A output rating, combined with 950 HP Light Duty, 900 HP Normal Duty and 750 HP Heavy Duty capability, makes it suitable for demanding industrial equipment.

The PowerFlex 755 platform provides a combination of high-power motor control, variable-speed operation and industrial automation integration.

The drive is particularly well suited to applications where large motors must be started smoothly, operated at variable speeds and monitored as part of a larger control system.

Large pumps, fans, conveyors, compressors, crushers, mixers and material-handling machinery are among the applications where this type of drive can provide substantial practical value.

The 800 mm depth, Frame 9 construction and forced-air cooling reflect its positioning as a large industrial drive rather than a compact machine-mounted inverter.

When selecting this model, the most important factors are the motor’s actual nameplate current, voltage, duty classification, overload requirement, starting torque, braking requirement, environmental conditions and installation arrangement.

The horsepower value alone should not be used as the final sizing criterion.

For applications requiring slightly less current, the 20G11LE760AN0NNNNN is a useful related option.

For an equivalent 825 A class, the 20G11LE825JN0NNNNN and 20G11LE825JN2NNNNN are relevant configurations to evaluate.

For applications requiring additional current capacity, the 20G11LE900AN0NNNNN and 20G11LE980AN0NNNNN provide higher-capacity alternatives.

Overall, the 20G11LE825AN0NNNNN is best characterized as a large-frame, high-current, high-power industrial variable frequency drive for demanding three-phase motor applications, with strong suitability for large process equipment and centralized industrial automation systems.