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Allen-Bradley 20G11LF590JN0NNNNN

PowerFlex 755 Air-Cooled AC Drive — Product Information, Technical Parameters, Applications, Advantages and Related Models

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1. Product Overview

The 20G11LF590JN0NNNNN is a high-power AC variable frequency drive from the PowerFlex 755 series.

It is designed for large three-phase industrial motors that require adjustable speed, controlled acceleration, process regulation and reliable operation under demanding industrial conditions.

This model belongs to the large-frame, air-cooled PowerFlex 755 range and is intended for high-power motor-control applications.

The drive has a 690 VAC, three-phase input class and a rated output current of 590 A.

Its principal duty ratings are:

• 630 kW Light Duty
• 560 kW Normal Duty
• 450 kW Heavy Duty

The product is configured as an 800 mm deep MCC-style drive, with forced-air cooling, filtered input, DC terminals and an integrated Ethernet-based industrial communication interface.

The model is particularly suitable for large pumps, fans, blowers, conveyors, compressors, mixers, process equipment, mining machinery and other large industrial motor applications.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 755
Product Type	High-Power AC Variable Frequency Drive
Catalog Number	20G11LF590JN0NNNNN
Cooling Type	Forced Air / Air Cooled
Voltage Class	690 VAC
Input Phase	Three Phase
Output Current	590 A
Light-Duty Rating	630 kW
Normal-Duty Rating	560 kW
Heavy-Duty Rating	450 kW
Frame	Frame 9
Input Configuration	AC Input with Precharge
DC Terminals	Yes
Filtering	Filtered
CM Capacitor Configuration	CM Jumper Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Enclosure	Type 1 / IP20
Installation Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
HIM	Blank / No HIM

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3. Product Identification

The complete catalog number is:

20G11LF590JN0NNNNN

This catalog number represents a specific factory configuration within the PowerFlex 755 product family.

The important rating portion is LF590, which identifies the 690 VAC, 590 A class of the drive.

The complete catalog number also identifies the selected enclosure, cooling arrangement, input configuration, filtering and other factory options.

For purchasing, replacement and maintenance purposes, the complete catalog number should be used rather than referring only to the PowerFlex 755 series name.

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4. Detailed Technical Parameters

Parameter	Specification
Model	20G11LF590JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	AC Variable Frequency Drive
Cooling	Forced Air Cooled
Input Voltage	690 VAC
Input Phase	3 Phase
Output Current	590 A
Light-Duty Power	630 kW
Normal-Duty Power	560 kW
Heavy-Duty Power	450 kW
Input Type	AC Input with Precharge
DC Input Capability	Available through DC terminals
DC Voltage	Up to approximately 932 VDC
Output Frequency Range	Approximately 0–500 Hz
EMC / Input Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Enclosure	Type 1 / IP20
Frame	Frame 9
Installation	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Cooling Airflow	Forced Air
Typical Ambient Range	Approximately 0–50°C, subject to installation conditions
Typical Application	Large Industrial Motors
Motor Type	Three-Phase AC Motor
HIM	Blank / No HIM

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5. Electrical Rating

The main electrical rating of the 20G11LF590JN0NNNNN is 590 A.

This places the drive in the high-power industrial category.

The three primary duty classifications are shown below.

Duty	Rated Power
Light Duty	630 kW
Normal Duty	560 kW
Heavy Duty	450 kW

The appropriate rating depends on the mechanical characteristics of the application.

A centrifugal pump or fan generally has a different load profile from a crusher, mixer or heavily loaded conveyor.

Therefore, the motor’s actual full-load current and required overload capability should always be considered together with the nominal motor power.

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6. 690 VAC Three-Phase Operation

The drive is intended for 690 VAC three-phase industrial power systems.

The 690 VAC class is commonly used for large industrial motors where substantial motor power is required.

A higher motor voltage can allow a large motor to operate at a lower current than an equivalent-power motor operating at a lower voltage.

This can influence:

• Motor cable selection
• Power-distribution design
• Transformer sizing
• Protection equipment
• Switchgear selection
• Motor-control-center design
• Electrical installation costs

The complete electrical installation should always be matched to the actual motor nameplate and site electrical system.

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7. 590 A Output Capability

The 590 A output-current rating is one of the most important characteristics of this model.

It allows the drive to control large industrial AC motors.

Motor current depends on several factors, including:

• Motor rated power
• Motor voltage
• Motor efficiency
• Motor power factor
• Motor speed
• Load torque
• Acceleration requirements
• Overload requirements

For this reason, selecting the drive only by comparing kW values is not sufficient.

The motor nameplate current should be checked carefully.

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8. Light-Duty Rating — 630 kW

The approximately 630 kW Light-Duty rating is suitable for applications with comparatively smooth load characteristics.

Typical examples include:

• Large centrifugal pumps
• Large industrial fans
• Ventilation systems
• Cooling-water pumps
• Large blowers
• Circulation systems

These applications generally have relatively predictable load characteristics and may not require repeated high overload conditions.

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9. Normal-Duty Rating — 560 kW

The approximately 560 kW Normal-Duty rating provides a useful balance between power capacity and moderate overload requirements.

Typical applications include:

• Large conveyors
• Process pumps
• Industrial fans
• Blowers
• Material-handling systems
• General process machinery

Normal-duty applications can involve more variable loading than typical light-duty pump and fan applications.

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10. Heavy-Duty Rating — 450 kW

The approximately 450 kW Heavy-Duty rating is intended for applications with greater torque demand or more demanding overload characteristics.

Possible applications include:

• Crushers
• Heavy conveyors
• Mixers
• Mining equipment
• High-inertia machinery
• Bulk-material handling
• Heavy process machinery

When selecting the drive for heavy-duty operation, the motor’s actual current and overload requirements are especially important.

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11. Cooling System

The 20G11LF590JN0NNNNN uses forced-air cooling.

At this power level, thermal management is an important part of the installation.

The drive’s power electronics generate heat during operation.

The forced-air cooling system removes heat from the power section and helps maintain acceptable operating temperatures.

Important installation factors include:

Cooling Factor	Importance
Airflow	Very High
Ventilation	Very High
Ambient Temperature	Very High
Air Intake	High
Exhaust Path	High
Fan Condition	High
Dust Accumulation	High
Cabinet Layout	High
Maintenance Access	High

Restricted airflow can increase operating temperature and may reduce equipment reliability.

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12. Input Configuration

The model uses an AC input with precharge.

The general power flow can be represented as:

690 VAC Three-Phase Supply

↓

AC Input

↓

Precharge Circuit

↓

Rectifier

↓

DC Link

↓

Inverter

↓

Variable-Frequency AC Output

↓

Three-Phase Motor

The drive converts the fixed-frequency AC supply into controlled variable-frequency output power.

This enables the motor to operate at different speeds according to the requirements of the industrial process.

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13. Precharge Function

The precharge function is particularly important for a large drive.

The drive contains DC-link capacitors that require controlled charging during startup.

A controlled precharge process helps manage the initial charging current.

This is especially important for high-power drives because the energy stored in the DC link is substantially greater than that of a small industrial drive.

The precharge arrangement therefore forms an important part of the drive’s power-input architecture.

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14. DC Terminals

The specified configuration includes DC terminals.

DC terminals provide additional flexibility for certain system configurations.

Potential applications include:

• Common DC bus systems
• Multi-drive arrangements
• Shared DC-link architectures
• Certain regenerative system configurations

The actual wiring arrangement must be designed according to the complete electrical system.

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15. Input Filtering

The drive is configured with filtering.

Filtering is useful for controlling electrical noise generated by the switching operation of the drive.

Variable frequency drives use high-speed switching devices to generate the motor output waveform.

The switching process creates high-frequency electrical components.

Proper filtering, grounding, cable routing and shielding all contribute to electromagnetic compatibility.

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16. CM Jumper Configuration

The catalog configuration specifies:

CM Jumper Installed

The common-mode capacitor arrangement affects how high-frequency common-mode currents interact with the electrical system.

This can be important in installations where grounding, motor-cable characteristics and electrical noise require careful consideration.

The CM configuration should be maintained according to the intended electrical system and installation requirements.

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17. Dynamic Braking

The specified model configuration has:

Dynamic Braking: None

This is an important consideration for high-inertia applications.

When a motor decelerates, mechanical energy can be transferred back toward the drive’s DC bus.

If the application requires rapid deceleration, the braking requirements should be evaluated separately.

Typical applications requiring careful deceleration analysis include:

• Large conveyors
• High-inertia fans
• Centrifuges
• Large rotating machinery
• Heavy material-handling systems
• Rapid-cycle equipment

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18. Embedded EtherNet/IP Communication

The PowerFlex 755 platform provides embedded EtherNet/IP communication.

This allows the drive to exchange operating information with a plant automation system.

Typical information can include:

Data	Typical Function
Start Command	Starts the motor
Stop Command	Stops the motor
Speed Reference	Sets operating speed
Actual Speed	Monitors motor speed
Output Current	Monitors motor load
Output Frequency	Monitors drive operation
Drive Status	Indicates operating condition
Warning	Provides advance indication
Fault	Indicates abnormal operation
Fault Reset	Allows controlled recovery
Diagnostic Information	Maintenance and troubleshooting

This communication capability is particularly useful for large industrial installations with centralized control.

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19. Enclosure and Protection

The model uses a Type 1 / IP20 enclosure configuration.

This type of enclosure is intended for appropriate indoor industrial installations where environmental conditions are controlled.

The enclosure should not be treated as a substitute for proper environmental protection.

Important site conditions include:

• Dust
• Moisture
• Condensation
• Corrosive gases
• Conductive contamination
• Temperature
• Airflow
• Vibration

For harsh environments, the overall cabinet and room design becomes particularly important.

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20. Physical Dimensions

The model uses an 800 mm deep MCC-style configuration.

The confirmed depth is:

800 mm

The overall width and height can depend on the specific physical configuration.

Therefore, they should not be assumed from the catalog number alone.

Mechanical Parameter	Specification
Frame	Frame 9
Installation Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Enclosure	Type 1 / IP20
Cooling	Forced Air
Mounting	Industrial MCC Installation
Cable Entry	Configuration-dependent
Maintenance Clearance	Site-dependent
Weight (kg)	Configuration-dependent

For cabinet construction, transportation and lifting calculations, the final configured mechanical drawing should be used.

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21. Weight

The complete equipment weight should be treated as configuration-dependent.

A high-power packaged drive can have different physical arrangements depending on the selected factory configuration and installed equipment.

For this reason, a generic catalog weight should not be substituted for the actual configured assembly weight.

Weight Item	Specification
Basic Drive Weight	Configuration-dependent
Complete Assembly Weight	Configuration-dependent
Weight (kg)	Confirm from final configured unit
Shipping Weight	May differ from equipment weight
Cabinet Weight	Configuration-dependent
Lifting Requirement	Based on actual final weight
Floor Loading	Must be checked
Transportation	Heavy Industrial Equipment Handling

This distinction is especially important for large electrical installations.

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22. Product Introduction

The 20G11LF590JN0NNNNN is designed for industrial motor systems where fixed-speed operation is not sufficient.

A conventional motor may operate at one primary speed.

A variable frequency drive allows the motor speed to be adjusted according to the process requirement.

This can provide a more flexible operating system.

For example, a large pump may run at a reduced speed when the required flow is lower.

A ventilation fan may slow down when airflow demand decreases.

A conveyor may accelerate gradually rather than starting at full speed.

A mixer can operate at different speeds during different stages of production.

A compressor can adjust its motor speed according to process requirements.

These capabilities make high-power drives particularly useful in modern industrial automation.

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23. Main Product Advantages

23.1 High Current Capacity

The 590 A output-current rating allows the drive to control large industrial motors.

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23.2 High Power Capability

The three duty ratings provide substantial power capacity:

• 630 kW Light Duty
• 560 kW Normal Duty
• 450 kW Heavy Duty

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23.3 690 VAC Operation

The 690 VAC class makes the drive suitable for large industrial motor systems.

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23.4 Adjustable Motor Speed

The drive can adjust motor speed according to process requirements.

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23.5 Controlled Acceleration

Controlled acceleration can reduce mechanical shock during motor startup.

This can be particularly valuable for:

• Gearboxes
• Couplings
• Belts
• Shafts
• Bearings
• Conveyor structures

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23.6 Flexible Process Control

Variable-speed control can be used to regulate:

• Flow
• Pressure
• Airflow
• Conveyor speed
• Production rate
• Mixing speed
• Process throughput

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23.7 Industrial Network Integration

Embedded EtherNet/IP provides an effective way to connect the drive to a larger automation system.

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23.8 High-Power Industrial Construction

The PowerFlex 755 architecture is designed for demanding industrial motor applications.

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24. Pump Applications

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

A pump does not necessarily need to operate at maximum speed continuously.

The drive can change motor speed according to process demand.

Typical applications include:

• Water transfer
• Cooling-water circulation
• Industrial process water
• Wastewater systems
• Mining dewatering
• Irrigation
• Large circulation systems
• Process pumping

Potential advantages include:

• Improved flow control
• Improved pressure control
• Smooth starting
• Reduced mechanical shock
• Potential energy savings

Actual energy savings depend on the pump, piping system and operating profile.

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25. Fan Applications

Large industrial fans and blowers can consume significant electrical power.

Running a fan at full speed when full airflow is not required can result in unnecessary energy consumption.

A variable frequency drive allows fan speed to be adjusted according to airflow requirements.

Typical applications include:

• Industrial ventilation
• Furnace ventilation
• Mining ventilation
• Cooling systems
• Process exhaust
• Dust collection
• Large air-handling systems

Potential benefits include:

• Adjustable airflow
• Smooth starting
• Reduced mechanical stress
• Better process control
• Potential energy savings

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26. Conveyor Applications

Large conveyors can contain significant mechanical inertia.

Starting a large conveyor directly can generate substantial mechanical stress.

Variable-speed control can provide controlled acceleration.

Potential benefits include:

• Reduced starting shock
• Reduced belt stress
• Reduced gearbox shock
• Adjustable conveyor speed
• Improved process synchronization
• Better material handling

Typical applications include:

• Mining conveyors
• Aggregate conveyors
• Cement conveyors
• Bulk-material conveyors
• Ore-handling systems
• Industrial production conveyors

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27. Crusher Applications

Crushers can produce rapidly changing mechanical loads.

A heavy-duty rating of approximately 450 kW makes the drive potentially suitable for appropriately sized crusher motors.

The motor’s full-load current and overload requirements must be checked carefully.

A crusher motor may require a different drive rating than a pump motor with the same nominal kW value.

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28. Compressor Applications

Large compressors can require substantial motor power.

Variable-speed operation can help the compressor respond to changing process requirements.

Potential applications include:

• Industrial compressed-air systems
• Process compressors
• Production facilities
• Large pneumatic systems
• Industrial processing

Compressor torque characteristics and required operating-speed range should be considered during selection.

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29. Mixer Applications

Large mixers can require significant starting torque.

The torque requirement may increase substantially as material is added to the mixing vessel.

A variable frequency drive can provide controlled acceleration and adjustable operating speed.

Potential applications include:

• Chemical processing
• Mineral processing
• Cement production
• Bulk-material processing
• General manufacturing
• Industrial process systems

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30. Mining Applications

The 690 VAC, 590 A configuration is well suited for consideration in large mining applications.

Potential equipment includes:

Mining Equipment	Drive Function
Large Conveyor	Variable-Speed Control
Crusher	Heavy-Duty Motor Control
Dewatering Pump	Flow Control
Ventilation Fan	Airflow Control
Material Handling	Controlled Acceleration
Processing Equipment	Speed Control
Bulk Handling	Process Coordination

Mining environments require special attention to dust, temperature, ventilation and mechanical conditions.

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31. Cement and Aggregate Applications

Large cement and aggregate plants use numerous high-power motors.

Typical equipment includes:

• Crushers
• Conveyors
• Large fans
• Blowers
• Pumps
• Mixers
• Process machinery

The 20G11LF590JN0NNNNN can be considered when the motor current and duty requirements fall within its ratings.

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32. Water and Wastewater Applications

Large water-treatment facilities often use high-power pumping systems.

Potential applications include:

• Raw-water pumps
• Transfer pumps
• Process pumps
• Cooling-water pumps
• Wastewater pumps
• Large ventilation fans
• Sludge-processing machinery

Variable-speed operation can help match pump output to actual process demand.

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33. Energy-Saving Potential

A major advantage of variable-speed operation is the ability to match motor output to actual process requirements.

This can be especially beneficial for centrifugal pumps and fans.

In suitable systems, reducing motor speed can significantly reduce mechanical power demand.

Potential benefits include:

• Lower electrical consumption
• Reduced throttling
• Improved process control
• Reduced mechanical stress
• Reduced unnecessary full-speed operation

Actual energy savings depend on the system’s operating profile and mechanical characteristics.

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34. Motor Selection Requirements

The motor must be correctly matched to the drive.

Motor Parameter	Importance
Rated Voltage	Very High
Full-Load Current	Critical
Motor Power	Very High
Rated Frequency	High
Rated Speed	High
Power Factor	High
Efficiency	High
Starting Torque	Very High
Overload Requirement	Critical
Speed Range	Very High
Motor Insulation	High
Motor Cable Length	High
Load Type	Critical

For this 590 A drive, the motor’s full-load current is one of the most important selection parameters.

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35. Installation Requirements

Installation Parameter	Requirement
Input Voltage	690 VAC
Input Phase	Three Phase
Motor Voltage	Verify Motor Nameplate
Motor Current	Verify Motor Nameplate
Motor Power	Compare With Duty Rating
Duty	Select According to Load
Cooling	Adequate Airflow Required
Ambient Temperature	Verify Site Conditions
Dust	Control Contamination
Grounding	Proper Grounding Required
Motor Cable	Correct Size Required
Cable Routing	Appropriate Separation
Cabinet Depth	800 mm
Cabinet Width	Verify Final Configuration
Cabinet Height	Verify Final Configuration
Weight (kg)	Verify Final Assembly
Maintenance Clearance	Provide Adequate Access
Communication	Verify Network Requirements

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36. Maintenance Considerations

Because this is a high-power forced-air drive, planned maintenance is important.

Typical inspection points include:

• Cooling fans
• Air passages
• Power terminals
• Electrical connections
• Cabinet ventilation
• Grounding connections
• Motor cables
• Environmental contamination
• Drive temperature
• Fault history
• Communication status
• Cooling performance

Dust accumulation should be controlled because restricted airflow can increase operating temperature.

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37. Five Same-Series or Closely Related Models

The following models are useful for comparison within the PowerFlex 755 high-power range.

Model	Series	Voltage	Current	Light Duty	Normal Duty	Heavy Duty	Depth	Weight (kg)
20G11LF590AN0NNNNN	PowerFlex 755	690 VAC	590 A	630 kW	560 kW	450 kW	800 mm	Configuration-dependent
20G11LF590JN2NNNNN	PowerFlex 755	690 VAC	590 A	630 kW	560 kW	450 kW	800 mm	Configuration-dependent
20G11LF590JN4NNNNN	PowerFlex 755	690 VAC	590 A	630 kW	560 kW	450 kW	800 mm	Configuration-dependent
20G11LF650JN0NNNNN	PowerFlex 755	690 VAC	650 A	710 kW	630 kW	500 kW	800 mm class	Configuration-dependent
20G11LF710JN0NNNNN	PowerFlex 755	690 VAC	710 A	800 kW	710 kW	590 kW	800 mm class	Configuration-dependent

The first three are particularly close because they retain the 590 A electrical rating.

The 650 A and 710 A models provide additional current capacity when the motor load approaches or exceeds the practical range of a 590 A drive.

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38. Related Model — 20G11LF590AN0NNNNN

The 20G11LF590AN0NNNNN is one of the closest related configurations.

Parameter	20G11LF590AN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Output Current	590 A
Light Duty	630 kW
Normal Duty	560 kW
Heavy Duty	450 kW
Cooling	Air Cooled
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Yes
CM Jumper	Installed
Dynamic Braking	None
Installation	800 mm MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Communication	Embedded EtherNet/IP

This is a useful comparison where the required electrical capacity remains around 590 A.

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39. Related Model — 20G11LF590JN2NNNNN

The 20G11LF590JN2NNNNN is another closely related 590 A configuration.

Parameter	20G11LF590JN2NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Output Current	590 A
Light Duty	630 kW
Normal Duty	560 kW
Heavy Duty	450 kW
Cooling	Air Cooled
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Yes
CM Jumper	Installed
Dynamic Braking	None
Installation	800 mm MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Communication	Embedded EtherNet/IP

The primary electrical rating is essentially the same, while the catalog configuration differs.

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40. Related Model — 20G11LF590JN4NNNNN

The 20G11LF590JN4NNNNN is another configuration within the same 590 A high-power range.

Parameter	20G11LF590JN4NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Output Current	590 A
Light Duty	630 kW
Normal Duty	560 kW
Heavy Duty	450 kW
Cooling	Air Cooled
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Yes
CM Jumper	Installed
Dynamic Braking	None
Installation	800 mm MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Communication	Embedded EtherNet/IP

It can be useful as a comparison when reviewing different factory option configurations within the same electrical rating.

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41. Related Higher-Capacity Model — 20G11LF650JN0NNNNN

The 20G11LF650JN0NNNNN increases the output-current capacity to approximately 650 A.

Parameter	20G11LF650JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Output Current	650 A
Light Duty	710 kW
Normal Duty	630 kW
Heavy Duty	500 kW
Cooling	Air Cooled
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Yes
Dynamic Braking	None
Installation	800 mm MCC Style
Depth	800 mm class
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Communication	Embedded EtherNet/IP

This model is a logical option when the 590 A rating is not sufficient for the motor application.

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42. Related Higher-Capacity Model — 20G11LF710JN0NNNNN

The 20G11LF710JN0NNNNN provides a further increase in current capability.

Parameter	20G11LF710JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Output Current	710 A
Light Duty	800 kW
Normal Duty	710 kW
Heavy Duty	590 kW
Cooling	Air Cooled
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Yes
Dynamic Braking	None
Installation	800 mm class
Depth	800 mm class
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Communication	Embedded EtherNet/IP

This model can be considered when the motor load exceeds the practical range of the 590 A and 650 A versions.

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43. Five Representative Popular Models Under the Same Brand

The following models represent different drive sizes and product families.

They are not direct replacements for the 590 A PowerFlex 755.

They are included as broader alternatives when selecting a drive according to motor size.

Model	Series	Voltage Class	Current Class	Typical Application	Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	480 VAC class	10 A class	Small Pumps / Fans	Frame-dependent	Configuration-dependent
25B-D017N104	PowerFlex 525	480 VAC class	17 A class	Small Conveyors / Fans	Frame-dependent	Configuration-dependent
25B-D027N114	PowerFlex 525	480 VAC class	27 A class	Pumps / Machinery	Frame-dependent	Configuration-dependent
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	77 A class	Pumps / Fans / Conveyors	Frame-dependent	Configuration-dependent
20G11LF650JN0NNNNN	PowerFlex 755	690 VAC	650 A	Large Industrial Motors	800 mm class	Configuration-dependent

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44. 25B-D010N104

The 25B-D010N104 is a compact drive intended for substantially smaller motors than the 20G11LF590JN0NNNNN.

Parameter	25B-D010N104
Product Series	PowerFlex 525
Product Type	Compact AC Drive
Voltage Class	480 VAC class
Current Class	10 A class
Typical Application	Small Pumps
Typical Application	Fans
Typical Application	Small Conveyors
Installation	Compact
Dimensions	Frame-dependent
Weight (kg)	Configuration-dependent
Cooling	Configuration-dependent

It is better suited to smaller motors where a compact drive is preferred.

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45. 25B-D017N104

The 25B-D017N104 provides a higher current range within the compact PowerFlex 525 family.

Parameter	25B-D017N104
Product Series	PowerFlex 525
Product Type	Compact AC Drive
Voltage Class	480 VAC class
Current Class	17 A class
Typical Application	Pumps
Typical Application	Fans
Typical Application	Conveyors
Typical Application	Small Process Machinery
Dimensions	Frame-dependent
Weight (kg)	Configuration-dependent
Cooling	Configuration-dependent

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46. 25B-D027N114

The 25B-D027N114 provides a higher current capacity within the compact drive family.

Parameter	25B-D027N114
Product Series	PowerFlex 525
Product Type	Compact Variable Frequency Drive
Voltage Class	480 VAC class
Current Class	27 A class
Typical Application	Pumps
Typical Application	Fans
Typical Application	Conveyors
Typical Application	Process Machinery
Dimensions	Frame-dependent
Weight (kg)	Configuration-dependent
Cooling	Configuration-dependent

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47. 20F11ND077AA0NNNNN

The 20F11ND077AA0NNNNN belongs to the PowerFlex 753 family and is designed for a substantially smaller motor range than the 590 A PowerFlex 755.

Parameter	20F11ND077AA0NNNNN
Product Series	PowerFlex 753
Product Type	Industrial AC Drive
Voltage Class	480 VAC class
Current Class	77 A class
Typical Application	Pumps
Typical Application	Fans
Typical Application	Conveyors
Typical Application	Process Equipment
Dimensions	Frame-dependent
Weight (kg)	Frame-dependent
Cooling	Air Cooled / Configuration-dependent
Installation	Industrial Drive Installation

This is more suitable for medium-power industrial motors.

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48. 20G11LF650JN0NNNNN

The 20G11LF650JN0NNNNN is the closest higher-current model in this comparison.

Parameter	20G11LF650JN0NNNNN
Product Series	PowerFlex 755
Product Type	High-Power AC Drive
Voltage	690 VAC
Output Current	650 A
Light Duty	710 kW
Normal Duty	630 kW
Heavy Duty	500 kW
Cooling	Air Cooled
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Yes
Dynamic Braking	None
Installation	800 mm MCC Style
Depth	800 mm class
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Communication	Embedded EtherNet/IP
Typical Applications	Large Pumps
Typical Applications	Large Fans
Typical Applications	Conveyors
Typical Applications	Process Machinery

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49. Direct Comparison With Closely Related Models

Parameter	20G11LF590JN0NNNNN	20G11LF590AN0NNNNN	20G11LF650JN0NNNNN	20G11LF710JN0NNNNN
Series	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755
Voltage	690 VAC	690 VAC	690 VAC	690 VAC
Current	590 A	590 A	650 A	710 A
Light Duty	630 kW	630 kW	710 kW	800 kW
Normal Duty	560 kW	560 kW	630 kW	710 kW
Heavy Duty	450 kW	450 kW	500 kW	590 kW
Cooling	Air Cooled	Air Cooled	Air Cooled	Air Cooled
Input	AC with Precharge	AC with Precharge	AC with Precharge	AC with Precharge
DC Terminals	Yes	Yes	Yes	Yes
Filtering	Yes	Yes	Yes	Yes
Dynamic Braking	None	None	None	None
Installation	800 mm MCC Style	800 mm MCC Style	800 mm MCC Style	800 mm class
Depth	800 mm	800 mm	800 mm class	800 mm class
Width	Configuration-dependent	Configuration-dependent	Configuration-dependent	Configuration-dependent
Height	Configuration-dependent	Configuration-dependent	Configuration-dependent	Configuration-dependent
Weight (kg)	Configuration-dependent	Configuration-dependent	Configuration-dependent	Configuration-dependent

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50. Same-Series Model Comparison

Model	Output Current	Light Duty	Normal Duty	Heavy Duty	Voltage	Cooling	Depth	Weight (kg)
20G11LF590AN0NNNNN	590 A	630 kW	560 kW	450 kW	690 VAC	Air	800 mm	Configuration-dependent
20G11LF590JN0NNNNN	590 A	630 kW	560 kW	450 kW	690 VAC	Air	800 mm	Configuration-dependent
20G11LF590JN2NNNNN	590 A	630 kW	560 kW	450 kW	690 VAC	Air	800 mm	Configuration-dependent
20G11LF590JN4NNNNN	590 A	630 kW	560 kW	450 kW	690 VAC	Air	800 mm	Configuration-dependent
20G11LF650JN0NNNNN	650 A	710 kW	630 kW	500 kW	690 VAC	Air	800 mm class	Configuration-dependent

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51. Application Selection Guide

Application	Recommended Duty	Suitability
Large Centrifugal Pump	Light / Normal	Excellent
Large Industrial Fan	Light / Normal	Excellent
Large Blower	Light / Normal	Excellent
Water Pumping Station	Normal	Excellent
Large Conveyor	Normal / Heavy	Very Good
Crusher	Heavy	Very Good when within rating
Large Mixer	Heavy	Very Good when within rating
Mining Fan	Light / Normal	Excellent
Mining Conveyor	Normal / Heavy	Very Good
Cement Equipment	Normal / Heavy	Very Good
Process Compressor	Application-dependent	Good
Material Handling	Normal / Heavy	Very Good
Industrial Process Machinery	Normal	Excellent

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52. Advantages in Industrial Automation

The 20G11LF590JN0NNNNN can serve as an important component within a larger industrial automation system.

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

This can include:

• Start commands
• Stop commands
• Speed references
• Actual motor speed
• Output current
• Output frequency
• Drive status
• Warning conditions
• Fault information
• Diagnostic information

This allows the motor to operate as part of a coordinated production process rather than functioning as an isolated device.

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53. Advantages for Large Pump Systems

For large pump systems, the drive can help match motor speed to process demand.

Instead of continuously operating the motor at full speed, the drive can adjust the speed when the required flow or pressure changes.

Potential advantages include:

• Improved flow control
• Improved pressure control
• Smooth motor startup
• Reduced mechanical shock
• Reduced unnecessary full-speed operation
• Potential energy savings

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54. Advantages for Large Fan Systems

Large ventilation systems frequently operate under changing airflow requirements.

Variable-speed control allows the fan to operate at an appropriate speed.

Potential advantages include:

• Adjustable airflow
• Better ventilation control
• Smooth starting
• Reduced mechanical stress
• Reduced unnecessary full-speed operation
• Potential energy savings

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55. Advantages for Conveyor Systems

Large conveyor systems can have significant inertia.

Controlled acceleration helps reduce sudden mechanical loading.

Potential benefits include:

• Smoother startup
• Reduced belt stress
• Reduced gearbox stress
• Adjustable conveyor speed
• Improved production synchronization
• Better material handling

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56. Advantages for Heavy Industry

Heavy industrial equipment frequently requires large motors and controlled operation.

The 590 A capacity makes this model suitable for a broad range of large industrial applications.

Potential equipment includes:

• Mining conveyors
• Crushers
• Large pumps
• Large fans
• Material-handling systems
• Processing machinery
• Large mixers
• Industrial blowers

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57. Mechanical Installation Considerations

The 800 mm depth should be included in the equipment layout.

The installation should also provide adequate room for:

• Incoming power cables
• Motor cables
• Cable bending radius
• Control wiring
• Cooling airflow
• Maintenance access
• Component replacement
• Door operation
• Inspection
• Lifting
• Transportation

The final width and height should be taken from the exact configured mechanical drawing.

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58. Environmental Considerations

The drive should be installed in an appropriate industrial environment.

Environmental Factor	Importance
Ambient Temperature	Very High
Humidity	High
Dust	High
Conductive Contamination	High
Corrosive Atmosphere	High
Vibration	High
Airflow	Very High
Altitude	Application-dependent
Grounding	Very High
Electrical Noise	High

Proper environmental management contributes significantly to long-term reliability.

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59. Maintenance Recommendations

A high-power air-cooled drive should be included in a planned maintenance program.

Recommended inspection areas include:

Cooling System

Inspect fans, air passages and ventilation paths.

Electrical Connections

Check power connections and terminals according to the applicable maintenance procedure.

Cabinet

Inspect for dust, moisture and contamination.

Motor Cables

Check cables, terminations and grounding.

Drive Status

Review warnings, faults and operating history.

Communication

Check network communication and drive status.

Temperature

Monitor abnormal temperature conditions.

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60. Main Product Strengths

Advantage	Description
High Current	590 A
High Power	Up to approximately 630 kW LD
High Voltage	690 VAC
Variable Speed	Yes
Controlled Acceleration	Yes
Process Control	Yes
Industrial Communication	Embedded EtherNet/IP
Air Cooling	Yes
Input Filtering	Yes
DC Terminals	Yes
CM Jumper	Installed
Large Motor Capability	Excellent
Pump Applications	Excellent
Fan Applications	Excellent
Conveyor Applications	Excellent
Heavy Industry	Very Good
Mining Applications	Suitable
Industrial Automation	Excellent

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61. Recommended Selection Procedure

When selecting the 20G11LF590JN0NNNNN for an industrial project, the following points should be checked.

1. Confirm Motor Voltage

Confirm that the motor voltage is compatible with the 690 VAC drive system.

2. Confirm Motor Current

The motor full-load current should be compared directly with the drive’s current rating.

3. Confirm Duty

Determine whether the application is Light Duty, Normal Duty or Heavy Duty.

4. Confirm Load Type

Pump, fan, conveyor, crusher and mixer applications can have substantially different load characteristics.

5. Confirm Acceleration Requirements

High-inertia machinery may require carefully controlled acceleration.

6. Confirm Deceleration Requirements

Applications requiring rapid stopping should be evaluated for appropriate braking arrangements.

7. Confirm Environment

Temperature, dust, humidity and ventilation must be considered.

8. Confirm Cabinet Dimensions

The 800 mm depth must be included in the mechanical layout.

9. Confirm Width and Height

The exact configured assembly should be used for final cabinet planning.

10. Confirm Weight

The actual configured Weight (kg) should be confirmed before transportation and lifting.

11. Confirm Communication

The automation system should be checked for the required EtherNet/IP architecture.

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62. Final Detailed Specification

Parameter	20G11LF590JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 755
Product Type	High-Power Air-Cooled AC Drive
Catalog Number	20G11LF590JN0NNNNN
Voltage Class	690 VAC
Input	Three-Phase AC
Output Current	590 A
Light-Duty Rating	630 kW
Normal-Duty Rating	560 kW
Heavy-Duty Rating	450 kW
Cooling	Forced Air Cooled
Frame	Frame 9
Input Type	AC Input with Precharge
DC Terminals	Yes
DC Voltage Capability	Approximately 932 VDC
Output Frequency	Approximately 0–500 Hz
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Enclosure	Type 1 / IP20
Installation Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
HIM	Blank / No HIM
Typical Motor	Large Three-Phase AC Motor
Pump Application	Excellent
Fan Application	Excellent
Conveyor Application	Very Good
Crusher Application	Suitable within Heavy-Duty rating
Compressor Application	Application-dependent
Mixer Application	Suitable within Heavy-Duty rating
Mining Application	Suitable
Cement Application	Suitable
Water Treatment	Excellent
Industrial Automation	Excellent

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63. Overall Product Assessment

The 20G11LF590JN0NNNNN is a high-power industrial variable frequency drive designed for large three-phase AC motors.

Its 690 VAC voltage class, 590 A output-current rating and substantial power capacity make it suitable for large industrial machinery.

The three main duty ratings provide flexibility across different application types:

630 kW Light Duty

560 kW Normal Duty

450 kW Heavy Duty

This makes the drive particularly useful for large pumps, fans, blowers, conveyors, mixers, compressors, crushers and process equipment.

The air-cooled construction is appropriate for industrial installations where suitable ventilation and thermal management are available.

The 800 mm deep MCC-style construction is an important mechanical characteristic and should be considered during electrical-room and cabinet planning.

The integrated Ethernet-based communication capability allows the drive to become part of a larger industrial automation system.

For pump and fan applications, the main advantage is the ability to regulate motor speed according to actual process demand.

For conveyor and material-handling applications, controlled acceleration can help reduce mechanical shock.

For heavy-duty machinery, the 450 kW heavy-duty rating provides substantial capacity when the motor and load characteristics are compatible.

The closest alternatives are other 590 A PowerFlex 755 configurations, while the 650 A and 710 A versions provide additional current capacity for larger motors.

When the motor is significantly smaller, compact and medium-power drive families are more appropriate.

For final engineering selection, the most important parameters to verify are the motor’s rated voltage, full-load current, duty cycle, overload requirement, speed range, acceleration and deceleration requirements, ambient conditions, cable arrangement and the final physical dimensions and Weight (kg) of the configured assembly.

In summary, the 20G11LF590JN0NNNNN can be described as a 690 VAC, 590 A, high-power, forced-air-cooled PowerFlex 755 AC drive intended for large industrial motor control, variable-speed operation, process regulation and industrial automation integration.