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Allen-Bradley 20G1ANF082JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The 20G1ANF082JN0NNNNN is a high-power industrial AC variable frequency drive belonging to the PowerFlex 755 series. It is designed for controlling the speed, torque, acceleration, deceleration, and operating characteristics of three-phase AC motors in demanding industrial environments.

This model is a 690 V AC, three-phase drive with a 75 kW normal-duty rating and a nominal continuous output current of 82 A. For heavy-duty applications, the drive is rated at approximately 55 kW, making it suitable for machinery where starting torque, overload capability, and continuous motor control are important.

The drive uses an air-cooled construction and an IP00/IP20, NEMA/UL Open Type configuration. It is intended to be installed as part of an electrical cabinet or industrial control system rather than being used as a completely exposed standalone unit.

The model is particularly suitable for medium- and high-power industrial equipment such as pumps, fans, conveyors, process machinery, material-handling systems, production equipment, and other motor-driven machines.

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2. Brand and Product Series

Item	Information
Brand	Allen-Bradley
Product series	PowerFlex 755
Product type	AC Variable Frequency Drive
Model	20G1ANF082JN0NNNNN
Voltage class	690 V AC
Phase	Three-phase
Drive category	Industrial AC drive
Cooling	Forced-air / air cooled
Enclosure configuration	IP00/IP20, NEMA/UL Open Type
Frame size	Frame 6
Normal-duty power	75 kW
Heavy-duty power	55 kW
Continuous output current	82 A
Main purpose	Variable-speed and torque control of AC motors

The PowerFlex 755 family is positioned for industrial applications where a combination of motor-control performance, flexible configuration, communication capability, diagnostics, and system integration is required.

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3. Detailed Product Specifications

Parameter	Specification
Model	20G1ANF082JN0NNNNN
Product series	PowerFlex 755
Brand	Allen-Bradley
Drive type	AC Variable Frequency Drive
Input voltage	690 V AC
Input phase	3 Phase
Input frequency	50 / 60 Hz system applications
Normal-duty output power	75 kW
Heavy-duty output power	55 kW
Continuous output current	82 A
Normal-duty 1-minute current	Approx. 90 A
Normal-duty 3-second current	Approx. 123 A
Heavy-duty continuous current	Approx. 61 A
Heavy-duty 1-minute current	Approx. 92 A
Heavy-duty 3-second current	Approx. 123 A
Cooling method	Forced air
Enclosure	IP00/IP20
Enclosure classification	NEMA/UL Open Type
Frame	Frame 6
Mounting	Cabinet / panel installation
Motor application	Three-phase AC motor
Control application	Variable speed and torque control
Dimensions, H × W × D	Approx. 665.5 × 308 × 346.4 mm
Dimensions, H × W × D	Approx. 26.20 × 12.13 × 13.64 in
Weight	Approx. 48 kg
Approx. weight in lb	Approx. 106 lb
Construction	Industrial modular drive
Typical application	Pumps, fans, conveyors, process machinery, material handling
Installation environment	Industrial electrical cabinet
Motor-control methods	V/Hz, sensorless vector and applicable advanced control modes
Communication	Network and communication options available within the series
Feedback	Feedback options available depending on configuration
Safety functions	Safety options available depending on configuration

Note: Dimensions and weight are intended as practical reference values for the corresponding Frame 6 configuration. Actual shipping or installed weight can vary with options and configuration. For cabinet fabrication, mounting, lifting, or replacement work, the exact mechanical drawing for the complete catalog configuration should be used.

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4. Understanding the 20G1ANF082JN0NNNNN Model

The catalog number contains several configuration elements that identify the electrical class and construction of the drive.

Model section	General meaning
20G	PowerFlex 755 drive family
1	Product/configuration designation
A	AC drive configuration
NF	690 V-class configuration
082	82 A output-current class
J	Configuration designation
N0NNNNN	Additional option/configuration identifiers

The most important characteristics when selecting this particular drive are its 690 V class, 82 A output rating, 75 kW normal-duty capacity, 55 kW heavy-duty capacity, and Frame 6 construction.

The complete model number should be retained when replacing an existing drive because drives with similar voltage and power ratings can have different options, filtering arrangements, communications, mounting arrangements, braking functions, feedback equipment, or safety configurations.

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5. Product Introduction

The 20G1ANF082JN0NNNNN is designed to provide controlled electrical power to an industrial motor.

A conventional motor connected directly to a fixed-frequency power supply generally operates at a relatively fixed speed determined by the supply frequency and motor characteristics. An AC drive changes the electrical output supplied to the motor, allowing the motor speed and torque to be controlled according to the requirements of the machine.

This is particularly useful in industrial processes where the motor does not need to operate at full speed continuously.

For example, a pump may need high flow during one part of a process and considerably lower flow during another. A fan may require different airflow levels depending on production conditions. A conveyor may need to operate at different speeds depending on material flow.

The drive provides the electrical interface between the incoming 690 V three-phase power supply and the motor.

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6. Electrical Rating

The 82 A output-current rating is one of the most important specifications of this model.

The normal-duty rating is:

Rating	Value
Normal-duty continuous current	82 A
Normal-duty 1-minute current	90 A
Normal-duty 3-second current	123 A
Normal-duty motor power	75 kW

For heavy-duty operation:

Rating	Value
Heavy-duty continuous current	61 A
Heavy-duty 1-minute current	92 A
Heavy-duty 3-second current	123 A
Heavy-duty motor power	55 kW

This distinction is important because motor applications are not all equally demanding.

A centrifugal fan or pump may have a relatively predictable load profile, while a conveyor, crusher, mixer, hoist-related machine, or other high-torque application can place substantially greater demands on the drive during acceleration and overload conditions.

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7. Normal-Duty and Heavy-Duty Applications

Normal-Duty Applications

The 75 kW normal-duty rating is appropriate for applications where the motor’s operating requirements fall within the normal-duty current and overload characteristics.

Typical examples include:

• Large centrifugal pumps
• Industrial fans
• Ventilation systems
• Cooling systems
• Water circulation systems
• Certain conveyor systems
• Process equipment with moderate starting requirements
• General-purpose industrial machinery

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Heavy-Duty Applications

The heavy-duty rating is approximately 55 kW.

Heavy-duty applications generally involve greater starting torque, higher overload demand, frequent acceleration and deceleration, or more demanding mechanical loads.

Examples can include:

• Heavy conveyors
• Mixers
• Agitators
• Material-handling equipment
• Certain crushers
• Process machinery
• High-inertia equipment
• Machinery with frequent starts and stops

The motor should therefore be selected according to its actual current and application duty rather than simply matching the motor’s kW value to the drive’s normal-duty kW value.

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8. Product Applications

8.1 Industrial Pumps

The 20G1ANF082JN0NNNNN can be used for large industrial pumping systems.

Variable-speed control allows the pump motor to operate at different speeds according to process requirements.

Typical applications include:

• Water treatment
• Industrial water circulation
• Cooling-water systems
• Process pumps
• Chemical-process equipment
• Boiler-related systems
• Large HVAC pumping systems
• Industrial fluid-transfer systems

One major advantage of variable-speed control in pump systems is the ability to match motor operation more closely to actual process demand.

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8.2 Fans and Blowers

Large fans and blowers can also benefit from variable-frequency control.

Instead of operating continuously at maximum speed, the motor can be operated at a speed appropriate to the required airflow.

Potential applications include:

• Factory ventilation
• Industrial exhaust
• Dust collection
• Furnace ventilation
• Cooling systems
• Large HVAC systems
• Industrial air-handling equipment
• Process blowers

The drive can provide smoother starting and controlled acceleration, reducing sudden mechanical stress on the fan, coupling, shaft, and associated equipment.

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8.3 Conveyor Systems

The 20G1ANF082JN0NNNNN is also suitable for various conveyor applications when the motor and duty requirements fall within its electrical rating.

Typical applications include:

• Bulk-material conveyors
• Mining-related conveyors
• Production conveyors
• Packaging lines
• Material-transfer systems
• Warehouse equipment
• Aggregate handling
• Industrial processing lines

Variable-speed control allows the conveyor to operate according to production requirements instead of maintaining a single fixed speed.

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8.4 Process Machinery

The drive can be used with a wide range of industrial process machinery.

Examples include:

• Mixers
• Agitators
• Process pumps
• Fans
• Blowers
• Production machines
• Material-processing equipment
• Auxiliary machinery
• Industrial rotating equipment

The actual drive selection should take into account motor current, torque requirements, acceleration time, inertia, operating cycle, and overload requirements.

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8.5 Material Handling

Large material-handling systems can require controlled acceleration and deceleration.

The drive can be applied to suitable machinery where controlled motor operation is needed.

Typical examples include:

• Feeders
• Material transfer equipment
• Conveyors
• Industrial handling machines
• Bulk-material systems

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9. Product Advantages

9.1 690 V High-Voltage Operation

One of the main characteristics of the 20G1ANF082JN0NNNNN is its 690 V AC voltage class.

High-voltage motor systems are commonly used for larger industrial motors because the higher voltage allows the required motor power to be transmitted at a lower current than would be required at a lower voltage.

This can be useful in large industrial installations where motor power levels are substantial.

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9.2 75 kW Normal-Duty Capacity

The 75 kW normal-duty rating makes the drive suitable for relatively large industrial motors.

It provides considerably more capacity than compact machine-level variable-frequency drives and is intended for applications where industrial power and system integration are important.

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9.3 Flexible Motor Control

The PowerFlex 755 platform supports multiple motor-control methods.

Depending on the application and configuration, the drive can be used for relatively straightforward variable-speed applications as well as applications requiring improved speed and torque control.

This flexibility allows one drive platform to be used across different types of machinery.

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9.4 High Overload Capability

The drive provides different current ratings for normal-duty and heavy-duty operation.

The 82 A normal-duty continuous rating is accompanied by short-term higher-current capabilities.

This gives the drive the ability to handle temporary increases in motor demand within the specified operating limits.

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9.5 Industrial Automation Integration

The PowerFlex 755 series is designed to operate as part of an industrial automation system.

Depending on the configuration, communication and option capabilities allow the drive to exchange operating information with a control system.

Typical information can include:

• Speed reference
• Actual speed
• Start/stop commands
• Drive status
• Fault status
• Current
• Voltage
• Motor operating information
• Alarm information
• Process-related control information

This can simplify integration into larger production systems.

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9.6 Diagnostic Capability

Industrial drives need more than simple speed control.

Diagnostic information can help maintenance personnel identify drive operating conditions, faults, alarms, and abnormal conditions.

This can reduce troubleshooting time and make preventive maintenance easier to organize.

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9.7 Flexible Configuration

The PowerFlex 755 architecture allows different options and configurations to be used depending on application requirements.

Possible requirements can include:

• Communication
• Feedback
• Safety
• Additional I/O
• Operator interface
• Application-specific functions
• Braking
• Motor-control functions

This modular approach makes the platform suitable for many different types of industrial equipment.

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10. Mechanical Specifications

Mechanical parameter	Specification
Frame size	Frame 6
Cooling	Forced air
Enclosure	IP00/IP20
Enclosure type	NEMA/UL Open Type
Height	Approx. 665.5 mm
Width	Approx. 308 mm
Depth	Approx. 346.4 mm
Height	Approx. 26.20 in
Width	Approx. 12.13 in
Depth	Approx. 13.64 in
Approx. weight	48 kg
Approx. weight	106 lb
Installation	Electrical cabinet / panel
Airflow requirement	Required
Cabinet ventilation	Required according to heat dissipation
Service access	Recommended around the drive

The physical size is important when replacing an existing drive because a drive with the same kW rating does not necessarily have the same frame dimensions.

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11. Five Recommended Models from the Same PowerFlex 755 Series

The following models are closely related 690 V versions of the same PowerFlex 755 family.

They cover lower and higher power ranges around the 75 kW / 82 A model.

Model	Voltage	Normal-duty power	Heavy-duty power	Continuous output current	Frame	Approx. dimensions	Approx. weight
20G1ANF061JN0NNNNN	690 V AC	55 kW	45 kW	61 A	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 48 kg
20G1ANF082JN0NNNNN	690 V AC	75 kW	55 kW	82 A	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 48 kg
20G1ANF098JN0NNNNN	690 V AC	90 kW	75 kW	98 A	6	Approx. Frame 6 size	Approx. 48 kg
20G1ANF119JN0NNNNN	690 V AC	110 kW	90 kW	119 A	6	Approx. Frame 6 size	Configuration dependent
20G1ANF142JN0NNNNN	690 V AC	132 kW	110 kW	142 A	6	Approx. Frame 6 size	Configuration dependent

These five models are particularly useful when selecting a drive based on motor current and power requirements.

The 20G1ANF061JN0NNNNN provides a lower capacity option, while the 20G1ANF098JN0NNNNN, 20G1ANF119JN0NNNNN, and 20G1ANF142JN0NNNNN provide progressively higher capacity.

The exact mechanical dimensions and weight should be checked against the complete configuration when a replacement or cabinet modification is planned.

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12. Detailed Comparison of the Same-Series Models

Model	Voltage	Current	Normal Duty	Heavy Duty	Frame	Cooling	Enclosure	Approx. Weight
20G1ANF061JN0NNNNN	690 V	61 A	55 kW	45 kW	6	Air cooled	IP00/IP20	Approx. 48 kg
20G1ANF082JN0NNNNN	690 V	82 A	75 kW	55 kW	6	Air cooled	IP00/IP20	Approx. 48 kg
20G1ANF098JN0NNNNN	690 V	98 A	90 kW	75 kW	6	Air cooled	IP00/IP20	Approx. 48 kg
20G1ANF119JN0NNNNN	690 V	119 A	110 kW	90 kW	6	Air cooled	IP00/IP20	Configuration dependent
20G1ANF142JN0NNNNN	690 V	142 A	132 kW	110 kW	6	Air cooled	IP00/IP20	Configuration dependent

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13. Five Other Related Models from the Same Brand

For applications outside the exact 690 V / 75 kW requirement, other models from the same brand can be considered.

These are not direct electrical replacements for the 20G1ANF082JN0NNNNN. They are related products intended for different voltage and power requirements.

Model	Series	Voltage	Phase	Current	Typical power class	Enclosure	Approx. dimensions	Approx. weight
20F1ANF020JN0NNNNN	PowerFlex 753	690 V AC	3	20 A	15 kW ND / 11 kW HD	IP00/IP20	Approx. Frame 6	Approx. 39 kg
20F1ANF023JN0NNNNN	PowerFlex 753	690 V AC	3	23 A	18.5 kW ND / 15 kW HD	IP00/IP20	Approx. Frame 6	Approx. 39 kg
20F1ANF030JN0NNNNN	PowerFlex 753	690 V AC	3	30 A	22 kW ND / 18.5 kW HD	IP00/IP20	Approx. Frame 6	Approx. 39 kg
20F1ANF034JN0NNNNN	PowerFlex 753	690 V AC	3	34 A	30 kW ND / 22 kW HD	IP00/IP20	Approx. Frame 6	Approx. 39 kg
20F1ANF046JN0NNNNN	PowerFlex 753	690 V AC	3	46 A	37 kW ND / 30 kW HD	IP00/IP20	Approx. Frame 6	Approx. 39 kg

These models are useful when the motor power requirement is substantially lower than 75 kW but the application still calls for a 690 V industrial drive.

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14. Detailed Comparison of Related Models

Model	Series	Voltage	Output current	Normal-duty power	Heavy-duty power	Frame	Cooling	Approx. weight
20F1ANF020JN0NNNNN	PowerFlex 753	690 V	20 A	15 kW	11 kW	6	Air cooled	Approx. 39 kg
20F1ANF023JN0NNNNN	PowerFlex 753	690 V	23 A	18.5 kW	15 kW	6	Air cooled	Approx. 39 kg
20F1ANF030JN0NNNNN	PowerFlex 753	690 V	30 A	22 kW	18.5 kW	6	Air cooled	Approx. 39 kg
20F1ANF034JN0NNNNN	PowerFlex 753	690 V	34 A	30 kW	22 kW	6	Air cooled	Approx. 39 kg
20F1ANF046JN0NNNNN	PowerFlex 753	690 V	46 A	37 kW	30 kW	6	Air cooled	Approx. 39 kg

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15. Application Selection Guide

Application	Suitability	Main consideration
Large centrifugal pump	Suitable	Check motor current and pump duty
Large industrial fan	Suitable	Check continuous load and airflow requirement
Blower	Suitable	Check starting and operating torque
Conveyor	Suitable	Check starting torque and acceleration
Mixer	Suitable with correct sizing	Check overload and torque requirements
Agitator	Suitable with correct sizing	Check low-speed torque
Process machinery	Suitable	Check duty cycle
Material handling	Suitable with correct configuration	Check acceleration and braking
Crusher	Application dependent	High starting and overload demand
Hoisting machinery	Application dependent	Braking, feedback and safety requirements are critical
Compressor	Application dependent	Motor and compressor characteristics must be checked
High-inertia machine	Suitable with proper sizing	Check acceleration/deceleration requirements

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16. Why Motor Current Matters More Than Motor kW Alone

When selecting an AC drive, it is tempting to compare only the motor’s rated kW with the drive’s kW rating.

This is not always sufficient.

Two motors with the same rated power can have different rated currents depending on their voltage, efficiency, power factor, motor design, connection method, and operating conditions.

For this reason, the motor nameplate current should be compared with the drive’s rated output current.

For the 20G1ANF082JN0NNNNN, the key normal-duty figure is 82 A continuous output current.

The application should also be evaluated for acceleration, overload, low-speed operation, starting torque, braking, and the number of starts per hour.

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17. Cabinet and Installation Considerations

The 20G1ANF082JN0NNNNN is an open-type industrial drive.

This means that it normally needs to be installed inside a suitable electrical cabinet or enclosure when the surrounding environment requires protection against dust, moisture, accidental contact, or other environmental hazards.

The approximate physical envelope is:

Mechanical item	Approximate value
Height	665.5 mm
Width	308 mm
Depth	346.4 mm
Weight	48 kg

The cabinet should also provide adequate airflow.

A drive of this power level generates heat during operation. If the cabinet is poorly ventilated, the internal temperature can rise significantly and may affect the service life and reliability of the drive.

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18. Cooling and Heat Management

Forced-air cooling is used for this configuration.

The cooling system is important because power semiconductors, capacitors, bus components, control electronics, and other internal components generate heat while the drive is operating.

During cabinet design, consideration should be given to:

• Air inlet location
• Air outlet location
• Cabinet fan capacity
• Internal temperature
• Ambient temperature
• Dust accumulation
• Filter maintenance
• Clearance around the drive
• Heat generated by other electrical equipment

The cooling system should be maintained regularly, especially in environments with dust, fibers, oil mist, or other contaminants.

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19. Motor-Control Functions

The PowerFlex 755 platform is designed to provide more than simple frequency adjustment.

Depending on configuration, the drive can support different motor-control strategies.

V/Hz Control

V/Hz control is commonly used for relatively straightforward variable-speed applications.

It can be appropriate for applications such as:

• Fans
• Pumps
• Simple conveyors
• General rotating machinery

Sensorless Vector Control

Sensorless vector control provides improved control of motor torque and speed compared with basic V/Hz operation.

It can be useful for:

• Conveyors
• Mixers
• Material handling
• Process machinery
• Applications requiring better low-speed behavior

Higher-Performance Control

For applications requiring more precise motor control, the PowerFlex 755 platform can be configured with additional control and feedback functions as required.

The exact available functionality depends on the drive configuration and selected options.

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20. Maintenance Considerations

Routine maintenance is important for a high-power AC drive.

The following items should be included in a maintenance program:

Maintenance item	Purpose
Cooling fans	Maintain proper airflow
Air passages	Prevent overheating
Electrical connections	Prevent loose-connection heating
Cabinet ventilation	Maintain acceptable temperature
Dust removal	Protect cooling performance
Capacitor condition	Maintain DC-bus reliability
Fault history	Identify repeated problems
Motor cable connections	Maintain reliable output connection
Grounding	Maintain electrical safety
Control wiring	Prevent intermittent control problems
Communication connections	Maintain system integration

The maintenance interval should be determined according to operating hours, ambient conditions, load conditions, temperature, contamination, and the overall installation environment.

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21. Replacement Considerations

If the 20G1ANF082JN0NNNNN is being replaced in an existing machine, the replacement should not be selected solely by looking for another 75 kW drive.

The following information should be checked:

Item	Check
Supply voltage	690 V AC
Supply phase	Three-phase
Motor voltage	Match motor nameplate
Motor current	Confirm actual motor FLA
Motor power	Confirm motor kW
Duty	Normal duty or heavy duty
Control method	Confirm required control performance
Feedback	Check encoder or other feedback requirements
Communication	Check existing control network
Safety	Check required safety functions
Braking	Check stopping and regenerative requirements
Enclosure	Confirm IP/NEMA requirement
Frame size	Confirm cabinet dimensions
Cooling	Confirm ventilation
Wiring	Confirm incoming and motor cable arrangement
Parameters	Record existing drive settings before replacement

This is particularly important because a drive that has the same voltage and power rating can still have a different physical or functional configuration.

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22. Recommended Same-Series Selection Range

The following table provides a simple way to understand the surrounding 690 V PowerFlex 755 range.

Model	Output current	Normal duty	Heavy duty	Typical use
20G1ANF061JN0NNNNN	61 A	55 kW	45 kW	Medium-large motors
20G1ANF082JN0NNNNN	82 A	75 kW	55 kW	Large industrial motors
20G1ANF098JN0NNNNN	98 A	90 kW	75 kW	Larger process equipment
20G1ANF119JN0NNNNN	119 A	110 kW	90 kW	High-power machinery
20G1ANF142JN0NNNNN	142 A	132 kW	110 kW	Higher-power industrial systems

The 20G1ANF082JN0NNNNN sits in the middle of this range, providing a 75 kW normal-duty rating while retaining the same 690 V class.

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23. Key Benefits at a Glance

Advantage	Description
High-voltage operation	Designed for 690 V three-phase industrial systems
High power	75 kW normal-duty capability
Strong current capacity	82 A continuous output
Overload capability	Higher short-term current capability
Flexible control	Multiple motor-control strategies
Industrial construction	Designed for industrial cabinet applications
Air cooling	Suitable for high-power applications
Modular architecture	Supports different functional requirements
System integration	Can be integrated into larger automation systems
Diagnostics	Useful operating and fault information
Wide application range	Pumps, fans, conveyors, process equipment and more
Expandability	Options can be selected according to application
690 V product family	Multiple current and power ratings available

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24. Final Product Summary

The 20G1ANF082JN0NNNNN is a 75 kW, 82 A, 690 V three-phase PowerFlex 755 AC drive designed for industrial motor-control applications.

Its combination of high voltage, high output power, overload capability, flexible control functions, air cooling, modular configuration, and industrial system integration makes it appropriate for a wide range of medium- and high-power machinery.

The most important technical characteristics are summarized below.

Specification	Final value
Brand	Allen-Bradley
Series	PowerFlex 755
Model	20G1ANF082JN0NNNNN
Product type	AC Variable Frequency Drive
Input voltage	690 V AC
Input	Three-phase
Normal-duty power	75 kW
Heavy-duty power	55 kW
Continuous output current	82 A
Normal-duty 1-minute current	Approx. 90 A
Normal-duty 3-second current	Approx. 123 A
Heavy-duty continuous current	Approx. 61 A
Heavy-duty 1-minute current	Approx. 92 A
Heavy-duty 3-second current	Approx. 123 A
Cooling	Forced air
Frame	6
Enclosure	IP00/IP20, NEMA/UL Open Type
Approx. dimensions	665.5 × 308 × 346.4 mm
Approx. weight	48 kg
Main applications	Pumps, fans, blowers, conveyors, process machinery, material handling
Control	V/Hz, sensorless vector and applicable advanced control
Installation	Industrial electrical cabinet
Product positioning	High-power industrial AC motor drive

Overall, the 20G1ANF082JN0NNNNN is best understood as a high-power industrial variable-frequency drive for applications where a standard low-power inverter is not sufficient and where controlled motor speed, torque, acceleration, overload handling, and integration with an industrial control system are required.

When choosing between the surrounding models, the most important parameters are the motor’s actual rated current, operating duty, starting torque, overload requirements, voltage, braking requirements, and installation environment. The 75 kW rating should therefore be considered together with the 82 A continuous output-current rating, rather than being used as the only selection criterion.