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20G11LF710JN0NNNNN — Detailed Product Description, Technical Parameters, Applications, Advantages and Related Models

1. Product Overview

The 20G11LF710JN0NNNNN is a high-power air-cooled AC variable frequency drive belonging to the PowerFlex 755 series.

It is designed for large three-phase industrial motor applications where substantial motor current, high power capacity, adjustable speed and integration with an industrial automation system are required.

This model is configured for a 690 VAC, three-phase power system and provides a rated output current of 710 A.

Its principal power ratings are approximately:

• 800 kW — Light Duty
• 710 kW — Normal Duty
• 590 kW — Heavy Duty

The drive uses a forced-air cooling system and a large Frame 9 construction. It is specified in an 800 mm deep MCC-style enclosure arrangement with Type 1 / IP20 protection.

The model also incorporates embedded EtherNet/IP communication, making it suitable for applications where the drive must communicate with a PLC, HMI, SCADA system or broader plant automation network.

The configuration includes AC input with DC terminals, EMC filtering, and a CM jumper installed configuration. Dynamic braking is not included in the standard catalog configuration, and the unit is supplied with a blank configuration rather than a local HIM.

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2. Brand and Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 755
Product Type	High-Power AC Variable Frequency Drive
Model	20G11LF710JN0NNNNN
Cooling Type	Forced Air / Air Cooled
Voltage Class	690 VAC
Input	3 Phase AC
Output Current	710 A
Frame	Frame 9
Mechanical Style	800 mm Deep MCC Style
Enclosure	Type 1 / IP20
Communication	Embedded EtherNet/IP
Dynamic Braking	None
HIM	Blank / No HIM

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3. Main Technical Parameters

Parameter	Specification
Model	20G11LF710JN0NNNNN
Product Series	PowerFlex 755
Drive Type	AC Variable Frequency Drive
Input Voltage	690 VAC
Input Phase	3 Phase
Output Current	710 A
Light-Duty Rating	800 kW
Normal-Duty Rating	710 kW
Heavy-Duty Rating	590 kW
Frame Size	Frame 9
Cooling	Forced Air
Input Configuration	AC Input with Precharge / DC Terminals
EMC Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Enclosure	Type 1 / IP20
Mechanical Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Overall Dimensions	Configuration-dependent
Weight	Configuration-dependent by final assembly
Weight (kg)	Approximately 14.51 kg for the referenced drive-unit configuration; final packaged/MCC assembly weight must be confirmed separately
Installation	Cabinet / MCC
Motor Type	Large Three-Phase AC Motor
Application Class	High-Power Industrial

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4. Product Introduction

The 20G11LF710JN0NNNNN is designed for the variable-speed control of large AC motors.

In a conventional fixed-speed motor installation, the motor is connected directly to the electrical supply and normally operates at a speed determined primarily by the supply frequency and motor characteristics.

A variable frequency drive changes this operating concept.

The drive converts incoming AC electrical power through its internal power electronics and produces a controlled output for the motor.

By adjusting the output frequency and voltage, the drive can control motor speed according to the requirements of the machine.

This provides an effective method of controlling large industrial equipment such as pumps, fans, blowers, conveyors and process machinery.

For a high-power application, the ability to regulate motor speed rather than simply switching a large motor on and off can provide significant operational advantages.

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5. 710 A High-Current Capability

One of the most important characteristics of the 20G11LF710JN0NNNNN is its 710 A output-current rating.

This places the product in a high-power industrial category.

The high current capacity makes the drive suitable for large motors that require considerably more electrical power than typical compact or medium-size drives.

The actual motor should not be selected solely according to horsepower or kilowatt value.

The motor nameplate current, duty cycle, overload requirement, speed range, starting torque and application characteristics should all be evaluated.

For large industrial installations, the motor’s full-load current is particularly important when matching the motor to the drive.

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6. 690 VAC Electrical Rating

The drive is designed for a 690 VAC three-phase system.

This voltage class is commonly used for large industrial motor installations.

As motor power increases, electrical current also becomes an important design consideration.

Using a higher motor voltage allows large motors to achieve high power levels without requiring excessively large current compared with lower-voltage motor systems.

The 690 VAC configuration therefore makes this drive appropriate for large industrial motor installations.

Typical equipment can include:

• Large pumps
• Large fans
• Industrial blowers
• Large conveyors
• Mining machinery
• Material-handling equipment
• Process machinery
• Water-treatment equipment
• Cement equipment
• Aggregate-processing machinery

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7. Power Ratings

The model has three important application ratings.

Duty Classification	Power Rating
Light Duty	800 kW
Normal Duty	710 kW
Heavy Duty	590 kW

The duty classification is important because industrial machines do not all place the same load on a motor.

A centrifugal fan, for example, generally has a different load profile from a crusher.

A pump may have a relatively smooth variable-torque load, while a conveyor may experience higher starting torque and changing material loads.

A crusher can be substantially more demanding because of high torque, inertia and frequent load changes.

The correct rating should therefore be selected according to the actual application.

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8. Light-Duty Rating — 800 kW

The 800 kW light-duty rating provides substantial capacity for large variable-speed applications where the overload requirements are relatively moderate.

Typical applications include:

• Large centrifugal pumps
• Large cooling fans
• Industrial ventilation
• Large blowers
• Water circulation systems
• Cooling systems
• Process-air systems
• Large exhaust systems

For these applications, the motor may not need to operate continuously at maximum speed.

Variable-speed operation can allow the motor output to follow the actual process requirement.

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9. Normal-Duty Rating — 710 kW

The 710 kW normal-duty rating is intended for general industrial applications where the load characteristics fall within the normal-duty envelope.

Potential applications include:

• Large conveyors
• Pumps
• Fans
• Blowers
• Material-handling machinery
• Industrial process machinery
• Large rotating equipment

The motor’s actual full-load current should always be checked before final selection.

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10. Heavy-Duty Rating — 590 kW

The 590 kW heavy-duty rating is relevant when the machine has more demanding torque or overload characteristics.

Potential applications include:

• Crushers
• Heavy conveyors
• High-inertia machinery
• Mining equipment
• Heavy material-handling systems
• Large mixers
• Difficult starting applications

Heavy-duty operation should be evaluated using the actual motor current and load profile rather than simply comparing the nominal motor kW rating.

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11. Cooling System

The drive uses forced-air cooling.

High-power semiconductor equipment generates considerable heat during operation.

The internal heat-producing components include the power conversion section, switching devices, DC-link components and associated electrical components.

The cooling system moves air through the equipment to remove this heat.

Correct installation is therefore extremely important.

The installation should provide suitable:

• Airflow
• Ventilation
• Cabinet clearance
• Air inlet space
• Air outlet space
• Cooling fan access
• Dust management
• Maintenance access

A blocked air path can increase internal temperature and reduce equipment reliability.

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12. Mechanical Configuration

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

This is a major mechanical consideration for system designers.

Mechanical Parameter	Specification
Frame	Frame 9
Mechanical Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Enclosure	Type 1 / IP20
Cooling	Forced Air
Mounting	Cabinet / MCC
Overall Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent for the complete assembly

The 800 mm depth should be incorporated into the initial cabinet and electrical-room layout.

The final width and height should be confirmed against the actual mechanical arrangement before cabinet fabrication.

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13. Dimensions

For this model, the key catalog mechanical dimension is the 800 mm deep MCC-style construction.

However, the complete physical dimensions of a high-power drive should not be estimated simply by assuming that every configuration has the same width and height.

The final dimensions can depend on:

• Mechanical configuration
• Cabinet arrangement
• Power section
• Connection arrangement
• Optional equipment
• Installation architecture

Therefore, the appropriate engineering approach is:

Dimension	Value
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Overall Envelope	Configuration-dependent
Cabinet Depth Requirement	800 mm class
Weight (kg)	Configuration-dependent for final assembly

For a detailed mechanical drawing, use the actual configured equipment dimensions.

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14. Weight

Weight requires some care with this particular product.

A high-power drive may be supplied as a drive unit, power structure or as part of a larger MCC-style assembly.

These different configurations do not necessarily have the same total mass.

A referenced drive-unit specification lists approximately 14.51 kg, but this figure should not automatically be treated as the weight of a complete 800 mm MCC-style packaged assembly.

For installation planning, transportation and lifting calculations, the actual supplied assembly weight should be used.

Weight Parameter	Specification
Referenced Drive-Unit Weight	Approx. 14.51 kg
Complete MCC Assembly	Configuration-dependent
Cabinet Weight	Configuration-dependent
Shipping Weight	Configuration-dependent
Installation Weight	Use actual supplied assembly
Weight (kg)	14.51 kg drive-unit reference; final assembly must be confirmed

This distinction is important when preparing lifting equipment or calculating floor loading.

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15. Input Configuration

The model uses an AC input with precharge and DC terminals.

The precharge arrangement is important in high-power drive systems because it helps control the initial charging behavior of the DC-link circuit.

The availability of DC terminals also provides additional flexibility within suitable system architectures.

This is particularly relevant for large industrial installations where the electrical system has been engineered around high-power drive equipment.

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16. EMC Filtering

The model includes a filtered configuration.

EMC filtering helps control unwanted electrical interference associated with power-electronic switching.

This can be beneficial in industrial environments containing:

• PLC systems
• Sensors
• Measurement equipment
• Industrial networks
• Communication systems
• Instrumentation
• Control panels

However, proper grounding, cable routing and motor-cable installation remain important.

A filter does not eliminate the need for correct electrical installation practices.

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17. CM Jumper Installed

The 20G11LF710JN0NNNNN is specified with the CM jumper installed.

This configuration relates to the common-mode capacitor and grounding arrangement of the drive.

The correct configuration should be evaluated against the site’s:

• Grounding system
• Motor insulation
• Cable type
• Motor-cable length
• Electrical distribution system
• Application requirements

This is particularly important for large motor installations.

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18. Dynamic Braking

The catalog configuration specifies no dynamic braking.

This means a dynamic braking resistor is not included as part of the standard configuration.

For applications requiring rapid deceleration of high-inertia loads, the braking requirements should be evaluated separately.

Potentially demanding applications include:

• Large conveyors
• High-inertia fans
• Large rotating machinery
• Material-handling systems
• Certain mining machines

If rapid stopping is required, the braking strategy should be designed specifically for the application.

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19. HIM Configuration

The model is supplied in a blank / no HIM configuration.

This is useful for installations where the drive is intended to be controlled primarily through a centralized automation system.

The drive can instead be integrated into an industrial control architecture.

Possible control methods include:

• PLC
• HMI
• SCADA
• EtherNet/IP
• Remote control station
• Automated process controller

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20. Enclosure and Environmental Protection

The model is specified with a Type 1 / IP20 enclosure arrangement.

This type of protection is intended for suitable industrial indoor environments rather than direct exposure to outdoor weather.

The installation environment should be assessed for:

• Dust
• Moisture
• Condensation
• Oil mist
• Corrosive gases
• Conductive contamination
• Excessive temperature
• High humidity
• Restricted airflow

Where the environment is particularly harsh, additional enclosure or environmental protection may be necessary.

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21. EtherNet/IP Communication

Embedded EtherNet/IP is one of the useful features of this model.

It allows the drive to communicate with an industrial control system.

A control system can exchange information such as:

Information	Typical Function
Start Command	Start motor
Stop Command	Stop motor
Speed Reference	Set operating speed
Actual Speed	Monitor motor speed
Output Frequency	Monitor operating frequency
Output Current	Monitor motor loading
Drive Status	Determine operating condition
Warning	Identify warning condition
Fault	Identify fault condition
Fault Reset	Reset applicable fault
Diagnostic Data	Troubleshooting

This makes the drive suitable for automated production systems where manual adjustment is not desirable.

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22. Industrial Automation Integration

A typical automated installation can be arranged conceptually as:

Industrial Power Supply

↓

Protection and Switching Equipment

↓

20G11LF710JN0NNNNN

↓

Variable-Frequency Motor Output

↓

Large Three-Phase Motor

↓

Pump / Fan / Conveyor / Process Machine

At the control level:

PLC / Automation Controller

↓

EtherNet/IP

↓

Drive

↓

Motor

This arrangement allows the drive to function as both a power-conversion device and an automation component.

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23. Main Product Applications

23.1 Large Pump Systems

The drive is highly suitable for large pump installations when the motor current and duty requirements match the drive rating.

Potential applications include:

• Raw-water pumps
• Process-water pumps
• Cooling-water pumps
• Wastewater pumps
• Mine dewatering pumps
• Water-transfer pumps
• Industrial circulation pumps
• Large irrigation pumps

Variable-speed operation can allow pump output to follow changing process requirements.

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24. Large Fan Applications

Large fans can require several hundred kilowatts of motor power.

The drive can be used for:

• Industrial ventilation
• Furnace ventilation
• Mine ventilation
• Cooling systems
• Exhaust systems
• Process-air systems
• Large air-handling systems

Adjusting fan speed can provide more direct control of airflow than continuously operating the motor at full speed.

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25. Blower Applications

Large industrial blowers can also benefit from variable-speed operation.

Typical applications include:

• Wastewater aeration
• Process air
• Combustion air
• Industrial ventilation
• Air handling
• Material-processing systems

The drive can adjust motor speed according to actual process demand.

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26. Conveyor Applications

Large conveyors often have substantial inertia.

A variable frequency drive can provide controlled acceleration instead of applying full motor torque immediately.

Potential benefits include:

• Reduced belt stress
• Reduced gearbox shock
• Reduced coupling stress
• Controlled acceleration
• Controlled deceleration
• Adjustable conveyor speed
• Better process synchronization

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27. Mining Applications

Large mining systems can require extremely high motor power.

Potential applications include:

• Mining conveyors
• Crushing systems
• Dewatering pumps
• Ventilation fans
• Material-handling equipment
• Processing machinery

The high-current capability of the drive makes it suitable for appropriately selected large mining motors.

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28. Cement and Aggregate Applications

Cement and aggregate plants contain many large rotating machines.

Potential applications include:

• Crushers
• Large conveyors
• Process fans
• Blowers
• Pumps
• Material-handling equipment
• Processing machinery

The ability to regulate speed can improve process control and reduce unnecessary full-speed operation.

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29. Water and Wastewater Applications

Large water-treatment systems can use high-power drives for:

• Pump stations
• Water transfer
• Wastewater pumping
• Aeration
• Process circulation
• Large ventilation systems

The ability to change motor speed can help match pump or blower output to changing process demand.

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30. Major Product Advantages

30.1 High Current Capacity

The 710 A output capability is the most significant characteristic of this drive.

It allows the drive to control very large industrial motors.

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30.2 High Power Capacity

The approximately 800 kW light-duty rating places the product firmly in the high-power industrial category.

This makes it suitable for applications where smaller drives would not provide sufficient capacity.

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30.3 690 VAC Operation

The 690 VAC voltage class makes the drive suitable for large industrial motor systems designed around this voltage.

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30.4 Multiple Duty Ratings

The separate light-duty, normal-duty and heavy-duty ratings allow engineers to evaluate the drive according to the actual mechanical load.

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30.5 Variable-Speed Control

The drive provides adjustable motor speed.

This can improve:

• Process control
• Flow control
• Pressure control
• Airflow control
• Conveyor speed
• Machine speed

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30.6 Controlled Acceleration

Large motors can impose substantial mechanical stress during starting.

Controlled acceleration can reduce the sudden mechanical impact associated with direct starting.

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30.7 Industrial Network Integration

Embedded EtherNet/IP makes it easier to incorporate the drive into a modern automated system.

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30.8 High-Power Industrial Construction

The Frame 9 architecture and 800 mm MCC-style configuration are intended for large industrial installations rather than small machine applications.

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31. Energy-Saving Potential

Variable-speed control can provide significant energy-saving opportunities in suitable applications.

This is particularly relevant to centrifugal pumps and fans.

For example, a process may not require maximum flow throughout the entire operating period.

Instead of operating the motor continuously at full speed and reducing output through mechanical restriction, the drive can reduce motor speed.

Potential benefits include:

• Lower unnecessary motor speed
• Reduced throttling losses
• Better flow control
• Better pressure control
• Improved process flexibility
• Reduced mechanical stress

Actual energy savings depend on the complete mechanical system and operating profile.

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32. Pump-System Advantages

When correctly applied to a pump system, the drive can provide:

• Adjustable flow
• Adjustable pressure
• Controlled starting
• Controlled stopping
• Reduced hydraulic shock
• Improved process response
• Potential energy savings

This makes the drive particularly attractive for water, wastewater, cooling and process-fluid applications.

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33. Fan-System Advantages

For large fans, the drive can provide:

• Adjustable airflow
• Smooth starting
• Smooth stopping
• Reduced mechanical stress
• Better ventilation control
• Potential energy reduction
• Improved process coordination

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34. Conveyor-System Advantages

For large conveyor systems, the drive can provide:

• Controlled acceleration
• Adjustable speed
• Reduced belt stress
• Reduced gearbox stress
• Reduced coupling shock
• Improved material flow
• Better synchronization with other machines

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35. Mining-System Advantages

For suitable mining equipment, the drive can provide:

• High motor-power capability
• Variable-speed operation
• Controlled starting
• Remote monitoring
• Network integration
• Fault information
• Process coordination

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36. Recommended Motor Selection Parameters

Before selecting the drive for a particular motor, the following motor information should be reviewed.

Motor Parameter	Importance
Motor Voltage	Critical
Full-Load Current	Critical
Rated Power	Very Important
Rated Frequency	Important
Rated Speed	Important
Power Factor	Important
Efficiency	Important
Starting Torque	Critical for demanding loads
Overload Requirement	Critical
Minimum Speed	Important
Maximum Speed	Important
Load Type	Critical
Motor Insulation	Important
Cable Length	Important
Ambient Conditions	Important

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37. Installation Requirements

Installation Parameter	Specification / Requirement
Supply Voltage	690 VAC
Supply Phase	3 Phase
Motor Voltage	Verify motor nameplate
Motor Current	Verify motor nameplate
Motor Power	Compare against applicable duty rating
Mechanical Depth	800 mm
Width	Verify final configuration
Height	Verify final configuration
Cooling	Adequate forced-air ventilation
Grounding	Required
Motor Cable	Correctly sized
Control Cable	Properly routed
Network Cable	Properly installed
Ambient Temperature	Must be evaluated
Dust	Must be evaluated
Moisture	Must be evaluated
Maintenance Clearance	Required
Lifting Method	Based on actual assembly weight
Weight (kg)	Confirm final supplied configuration

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38. Five Same-Series or Closely Related Models

The following models are useful for comparison because they belong to the same high-power PowerFlex 755 family or represent closely related configurations.

Model	Series	Voltage	Current	Power / Duty Information	Cooling	Mechanical Size	Weight (kg)
20G11LF765JN0NNNNN	PowerFlex 755	690 VAC	765 A class	Higher-current version	Air Cooled	800 mm class	Configuration-dependent
20G11LF795JN0NNNNN	PowerFlex 755	690 VAC	795 A class	Higher-current version	Air Cooled	800 mm class	Configuration-dependent
20G11LF960JN0NNNNN	PowerFlex 755	690 VAC	960 A class	Very-high-current version	Air Cooled	800 mm class	Configuration-dependent
20G11LF710JN2NNNNN	PowerFlex 755	690 VAC	710 A	Same basic power class, different configuration	Air Cooled	800 mm class	Configuration-dependent
20G11LF710JN4NNNNN	PowerFlex 755	690 VAC	710 A	Same basic power class, different configuration	Air Cooled	800 mm class	Configuration-dependent

These alternatives should be treated as related catalog configurations rather than automatically interchangeable replacements.

The suffix differences can represent important configuration changes, so the complete catalog number must be checked before substitution.

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39. 20G11LF765JN0NNNNN

This is a higher-current model within the same high-power family.

Its approximately 765 A class makes it suitable for applications where the 710 A model is close to the required current level but additional capacity is desired.

Parameter	20G11LF765JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Current Class	765 A
Drive Type	High-Power AC Drive
Cooling	Air Cooled
Mechanical Style	800 mm Deep MCC Style
Enclosure	Type 1 / IP20 class
Communication	EtherNet/IP configuration available
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

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40. 20G11LF795JN0NNNNN

The 20G11LF795JN0NNNNN provides another increase in current capacity.

It can be considered for large motors where the 710 A and 765 A versions do not provide enough current margin.

Parameter	20G11LF795JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Current Class	795 A
Drive Type	High-Power AC Drive
Cooling	Air Cooled
Mechanical Style	800 mm Deep MCC Style
Enclosure	Type 1 / IP20 class
Installation	Cabinet / MCC
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

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41. 20G11LF960JN0NNNNN

The 20G11LF960JN0NNNNN is a substantially higher-current member of the same general high-power family.

It is intended for very large industrial motor systems.

Parameter	20G11LF960JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Current Class	960 A
Drive Type	High-Power AC Drive
Cooling	Air Cooled
Mechanical Style	800 mm class
Application	Very Large Industrial Motors
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

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42. 20G11LF710JN2NNNNN

The 20G11LF710JN2NNNNN maintains the same general 710 A / 690 VAC power class while using a different catalog configuration.

Parameter	20G11LF710JN2NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Current	710 A
Light-Duty Class	800 kW class
Normal-Duty Class	710 kW class
Heavy-Duty Class	590 kW class
Cooling	Air Cooled
Mechanical Style	800 mm Deep MCC Style
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

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43. 20G11LF710JN4NNNNN

The 20G11LF710JN4NNNNN is another closely related 710 A configuration.

It can be useful when comparing catalog options within the same high-power drive family.

Parameter	20G11LF710JN4NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Current	710 A
Light-Duty Class	800 kW class
Normal-Duty Class	710 kW class
Heavy-Duty Class	590 kW class
Cooling	Air Cooled
Mechanical Style	800 mm Deep MCC Style
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

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44. Five Popular Models From the Same Brand

The following models represent other commonly used products within the same brand family and cover considerably smaller motor applications than the 710 A high-power drive.

They should not be regarded as direct electrical substitutes for the 20G11LF710JN0NNNNN.

Model	Product Series	Voltage Class	Current Class	Typical Application	Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	480 VAC class	10 A class	Small Pumps / Fans / Machinery	Frame-dependent	Configuration-dependent
25B-D017N104	PowerFlex 525	480 VAC class	17 A class	Pumps / Fans / Conveyors	Frame-dependent	Configuration-dependent
25B-D027N114	PowerFlex 525	480 VAC class	27 A class	General Machinery	Frame-dependent	Configuration-dependent
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	77 A class	Pumps / Fans / Conveyors	Frame-dependent	Configuration-dependent
20G11LF710JN0NNNNN	PowerFlex 755	690 VAC	710 A	Large Industrial Motors	800 mm depth class	Configuration-dependent

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45. 25B-D010N104

The 25B-D010N104 belongs to the compact PowerFlex 525 family.

It is designed for considerably smaller motor applications than the subject 710 A drive.

Parameter	25B-D010N104
Series	PowerFlex 525
Drive 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 Cabinet / Machine
Dimensions	Frame-dependent
Weight (kg)	Configuration-dependent

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46. 25B-D017N104

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

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

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47. 25B-D027N114

The 25B-D027N114 is another compact variable frequency drive suitable for industrial machinery requiring substantially less current than the 710 A model.

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

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48. 20F11ND077AA0NNNNN

The 20F11ND077AA0NNNNN belongs to the PowerFlex 753 family.

It is positioned in a considerably lower current range than the subject high-power PowerFlex 755.

Parameter	20F11ND077AA0NNNNN
Series	PowerFlex 753
Drive Type	Industrial AC Drive
Voltage Class	480 VAC class
Current Class	77 A class
Typical Applications	Pumps
Typical Applications	Fans
Typical Applications	Conveyors
Typical Applications	Process Machinery
Cooling	Configuration-dependent
Dimensions	Frame-dependent
Weight (kg)	Configuration-dependent

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49. 20G11LF710JN0NNNNN

The subject model itself is also an important reference point when comparing products within the brand’s high-power drive range.

Parameter	20G11LF710JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Output Current	710 A
Light-Duty Rating	800 kW
Normal-Duty Rating	710 kW
Heavy-Duty Rating	590 kW
Cooling	Forced Air
Input	AC with Precharge and DC Terminals
Filtering	EMC Filter
CM Jumper	Installed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Enclosure	Type 1 / IP20
Frame	Frame 9
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Approx. 14.51 kg drive-unit reference; final assembly requires confirmation

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50. Comparison of the Main High-Power Models

Model	Voltage	Current	Light Duty	Normal Duty	Heavy Duty	Cooling	Depth	Weight (kg)
20G11LF710JN0NNNNN	690 VAC	710 A	800 kW	710 kW	590 kW	Air	800 mm	Approx. 14.51 kg drive-unit reference
20G11LF765JN0NNNNN	690 VAC	765 A class	Higher-current class	Higher-current class	Higher-current class	Air	800 mm class	Configuration-dependent
20G11LF795JN0NNNNN	690 VAC	795 A class	Higher-current class	Higher-current class	Higher-current class	Air	800 mm class	Configuration-dependent
20G11LF960JN0NNNNN	690 VAC	960 A class	Very-high-current class	Very-high-current class	Very-high-current class	Air	800 mm class	Configuration-dependent
20G11LF710JN2NNNNN	690 VAC	710 A	800 kW class	710 kW class	590 kW class	Air	800 mm class	Configuration-dependent
20G11LF710JN4NNNNN	690 VAC	710 A	800 kW class	710 kW class	590 kW class	Air	800 mm class	Configuration-dependent

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51. Product Selection Comparison

Requirement	Recommended Direction
Around 710 A motor current	20G11LF710JN0NNNNN
More current capacity required	20G11LF765JN0NNNNN
Still higher current requirement	20G11LF795JN0NNNNN
Extremely large current requirement	20G11LF960JN0NNNNN
Same 710 A class with different configuration	20G11LF710JN2NNNNN / 20G11LF710JN4NNNNN
Small motor	PowerFlex 525 class
Medium industrial motor	PowerFlex 753 class
Very large industrial motor	PowerFlex 755 high-power class

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52. Advantages in Large Pump Systems

For large pumps, the drive can provide controlled motor speed rather than requiring the pump to operate continuously at one fixed speed.

Potential advantages include:

• Adjustable flow
• Adjustable pressure
• Controlled acceleration
• Controlled stopping
• Reduced hydraulic shock
• Better process response
• Potential energy savings
• Remote monitoring
• Automatic process control

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53. Advantages in Large Fan Systems

For large fans and blowers, speed control can be particularly valuable.

The drive can help provide:

• Adjustable airflow
• Smooth startup
• Reduced mechanical stress
• Process-based speed control
• Better ventilation management
• Potential reduction in unnecessary energy consumption

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54. Advantages in Conveyor Systems

For large conveyors, controlled acceleration can reduce mechanical shock.

Potential benefits include:

• Reduced belt stress
• Reduced gearbox stress
• Reduced coupling shock
• Controlled starting
• Adjustable operating speed
• Improved synchronization
• More consistent material movement

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55. Advantages in Mining Equipment

Large mining machines can require high motor torque and high continuous power.

The drive can provide:

• High-current motor control
• Adjustable speed
• Controlled acceleration
• Remote monitoring
• Network communication
• Fault indication
• Process coordination

The final selection must account for the machine’s actual torque and overload characteristics.

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56. Advantages in Water Treatment

Water and wastewater systems frequently have changing flow requirements.

Variable-speed control can allow the pump or blower output to follow process demand.

Potential advantages include:

• Better flow regulation
• Pressure control
• Reduced throttling
• Controlled pump startup
• Reduced mechanical shock
• Remote monitoring
• Automated operation

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57. Advantages in Process Machinery

Industrial process machinery can benefit from precise speed regulation.

The drive can be integrated into the overall process control strategy.

Potential benefits include:

• Adjustable production speed
• Controlled acceleration
• Controlled deceleration
• Improved synchronization
• Remote control
• Automated fault handling
• Process monitoring

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58. Control and Monitoring

The drive can be incorporated into a larger automation system.

Typical monitored information may include:

Parameter	Purpose
Motor Speed	Process monitoring
Output Frequency	Drive monitoring
Output Current	Load monitoring
Drive Status	Operating-state monitoring
Warning Status	Early fault indication
Fault Status	Troubleshooting
Speed Reference	Process control
Start/Stop Command	Motor control
Drive Ready	System interlocking
Fault Reset	Remote recovery

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59. Maintenance Considerations

Because the drive is a high-power air-cooled device, maintenance should focus on thermal performance, electrical connections and general cleanliness.

Important maintenance points include:

• Cooling-air passages
• Cooling fans
• Electrical connections
• Grounding connections
• Motor cables
• Control wiring
• Network connections
• Cabinet ventilation
• Dust accumulation
• Signs of overheating
• Abnormal noise
• Abnormal vibration
• Fault history

Regular inspection can help identify problems before they become major failures.

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60. Environmental Considerations

The operating environment should be considered carefully.

Environmental Factor	Consideration
Temperature	Must remain within applicable operating limits
Humidity	Avoid condensation
Dust	Keep cooling paths clear
Moisture	Protect equipment from direct exposure
Corrosive Gas	Evaluate suitability
Altitude	Evaluate thermal derating if applicable
Ventilation	Essential
Cabinet Space	Adequate clearance required
Maintenance Access	Required
Cable Routing	Proper separation recommended

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61. Electrical Design Considerations

A high-power drive installation should include appropriate consideration of:

• Input protection
• Short-circuit protection
• Grounding
• Motor cable selection
• Cable length
• Motor insulation
• EMC
• Harmonic performance
• Cabinet ventilation
• Control wiring
• Network wiring
• Emergency stopping strategy
• Braking requirements

The drive should be incorporated into a complete electrical system rather than treated as an isolated component.

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62. Mechanical Design Considerations

The mechanical design should account for:

• 800 mm installation depth
• Cabinet width
• Cabinet height
• Airflow
• Cable bending radius
• Maintenance clearance
• Lifting access
• Floor loading
• Equipment weight
• Heat dissipation

The exact mechanical drawing should be used when designing the final cabinet or MCC arrangement.

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63. Why This Model Is Suitable for Large Industrial Motors

The combination of:

• 690 VAC
• 710 A
• 800 kW light-duty rating
• 710 kW normal-duty rating
• 590 kW heavy-duty rating
• Frame 9
• Forced-air cooling
• EtherNet/IP
• 800 mm MCC-style construction

makes the model suitable for large industrial motor applications.

It is not intended to compete with compact machine drives.

Instead, it is designed for large process equipment where the motor itself can require hundreds of kilowatts of power.

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64. Key Technical Advantages at a Glance

Advantage	Description
High Current	710 A output capacity
High Power	Up to 800 kW LD
High Voltage	690 VAC
Variable Speed	Adjustable motor operating speed
Controlled Starting	Reduced mechanical shock
Industrial Networking	Embedded EtherNet/IP
Air Cooling	Forced-air thermal management
Large Motor Compatibility	Suitable for high-power motors
Industrial Construction	Frame 9
MCC Integration	800 mm deep MCC-style design
EMC Filtering	Integrated filtering configuration
Remote Monitoring	Suitable for automated control systems
Process Control	Suitable for pumps, fans, conveyors and machinery

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65. Complete Technical Summary

Category	20G11LF710JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 755
Product Type	High-Power AC Variable Frequency Drive
Model	20G11LF710JN0NNNNN
Input Voltage	690 VAC
Input Phase	3 Phase
Output Current	710 A
Light-Duty Rating	800 kW
Normal-Duty Rating	710 kW
Heavy-Duty Rating	590 kW
Cooling	Forced Air / Air Cooled
Frame	Frame 9
Input Configuration	AC Input with Precharge and DC Terminals
EMC Filter	Yes
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Enclosure	Type 1 / IP20
Mechanical Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Overall Dimensions	Configuration-dependent
Drive-Unit Weight	Approx. 14.51 kg reference
Complete Assembly Weight	Configuration-dependent
Weight (kg)	Approx. 14.51 kg drive-unit reference; verify final assembly
Typical Motor	Large Three-Phase AC Motor
Pump Applications	Excellent
Fan Applications	Excellent
Conveyor Applications	Very Good
Mining Applications	Very Good
Water Applications	Excellent
Process Applications	Excellent

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66. Final Product Assessment

The 20G11LF710JN0NNNNN is a high-power PowerFlex 755 AC drive intended for large industrial motor-control applications.

Its 710 A output current, 690 VAC three-phase rating and high power capacity make it suitable for large pumps, fans, blowers, conveyors, mining machinery, water-treatment equipment, cement machinery and other heavy industrial processes.

The approximately 800 kW light-duty, 710 kW normal-duty and 590 kW heavy-duty ratings provide flexibility when matching the drive to different load characteristics.

The forced-air cooling system is appropriate for high-power operation, but the installation must provide adequate airflow and maintenance access.

The 800 mm deep MCC-style construction is an important mechanical characteristic. The depth can be used for preliminary cabinet planning, while the final width and height should be established from the actual mechanical configuration.

The embedded EtherNet/IP capability makes the drive well suited to automated industrial environments. It can participate in centralized control and monitoring, allowing speed commands, operating status, current information, warnings and faults to be handled through the automation system.

The CM jumper installed, EMC filtering, AC input with precharge and DC terminals, no dynamic braking, and blank/no-HIM configuration are also important when comparing this model with other catalog configurations.

For motor selection, the most important factors are not simply the motor’s nominal kilowatt rating. The motor voltage, full-load current, duty cycle, overload requirement, starting torque, speed range and load characteristics must all be considered.

For mechanical planning, 800 mm depth is the key confirmed dimensional characteristic. The final width, height and complete assembly weight should be treated as configuration-specific.

For weight planning, an approximately 14.51 kg drive-unit reference can be used only with caution. It should not automatically be interpreted as the mass of a complete MCC-style packaged installation. The final supplied assembly weight should be used for lifting, transportation and structural calculations.

Overall, the 20G11LF710JN0NNNNN is a strong choice for large industrial motor systems that require high current capacity, high power, 690 VAC operation, variable-speed control, industrial networking and integration into a larger automated process.