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Allen-Bradley 20G11TD740AN0NNNNN PowerFlex 755 AC Drive – Detailed Product Specifications, Applications, Advantages and Related Models

1. Product Introduction

The Allen-Bradley 20G11TD740AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications.

This model is part of the PowerFlex 755 high-performance drive family and is intended for demanding applications where large motor horsepower, high output current, variable-speed operation, process control, and industrial network integration are required.

The drive is designed for a 480 VAC, three-phase electrical system and has a 740 A output-current class. Its Frame 8 construction places it firmly in the large industrial-drive category rather than the compact machine-drive category.

The model provides approximately 700 HP Light Duty, 650 HP Normal Duty, and 500 HP Heavy Duty capability. These different duty classifications allow engineers to select the drive according to the actual motor loading, overload requirement, and process operating profile.

The drive uses forced-air cooling and an open-type Frame 8 mechanical arrangement. It is designed for installation in a suitable industrial electrical environment where adequate ventilation, service access, cable routing, grounding, and mechanical support can be provided.

The 20G11TD740AN0NNNNN also incorporates embedded EtherNet/IP communication, making it suitable for integration with PLC-based control systems, HMIs, supervisory systems, and larger plant automation networks.

The drive configuration includes AC input with precharge and DC terminals, filtered input, and a base configuration without dynamic braking and without a mounted HIM.

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2. Basic Product Information

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Catalog Number	20G11TD740AN0NNNNN
Voltage Class	480 VAC
Input Phase	3 Phase
Output Current	740 A class
Light-Duty Rating	700 HP
Normal-Duty Rating	650 HP
Heavy-Duty Rating	500 HP
Approx. Light-Duty Power	522 kW
Approx. Normal-Duty Power	485 kW
Approx. Heavy-Duty Power	373 kW
Frame Size	Frame 8
Construction	Open Type
Cooling	Forced Air
Input Type	AC Input with Precharge
DC Terminals	Included
EMC Filtering	Filtered
CM Jumper	Removed in this AN configuration
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Typical Installation	Floor-Mount Industrial Installation
Typical Application	Large Industrial Motor Control

The 740 A rating is the defining electrical characteristic of this model.

Compared with smaller PowerFlex 755 Frame 8 drives, the 20G11TD740AN0NNNNN provides additional current capacity and is intended for applications requiring larger motor power.

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3. Electrical Specifications

Electrical Parameter	Specification
Model	20G11TD740AN0NNNNN
Rated Supply Voltage	480 VAC
Supply Configuration	Three-Phase AC
Output Current Class	740 A
Light-Duty Output	800 A class / 700 HP application rating
Normal-Duty Output	740 A class / 650 HP application rating
Heavy-Duty Output	617 A class / 500 HP application rating
Light-Duty Motor Power	700 HP
Normal-Duty Motor Power	650 HP
Heavy-Duty Motor Power	500 HP
Approx. LD Power	522 kW
Approx. ND Power	485 kW
Approx. HD Power	373 kW
Frame	8
Input	AC with Precharge
DC Terminals	Yes
Cooling	Forced Air
EMC Filter	Filtered
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Enclosure Type	Open Type / Frame 8

The drive’s duty ratings should be considered when selecting it for a particular motor.

A 650 HP motor in a continuous normal-duty application is a different engineering requirement from a 500 HP motor subjected to repeated acceleration, deceleration, and high overload conditions.

For this reason, the horsepower figure should always be evaluated together with motor current, duty cycle, overload requirements, ambient temperature, motor efficiency, process load characteristics, and acceleration requirements.

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4. Light Duty, Normal Duty and Heavy Duty Ratings

The PowerFlex 755 platform uses different application-duty classifications to allow a drive to be matched more accurately to the motor and process.

Duty Class	Approx. Current Rating	Motor Rating	Approx. kW
Light Duty	800 A class	700 HP	522 kW
Normal Duty	740 A class	650 HP	485 kW
Heavy Duty	617 A class	500 HP	373 kW

Light Duty

Light Duty applications generally have lower overload requirements and relatively moderate load profiles.

The 700 HP Light Duty rating allows the drive to control very large motors where the process does not impose the same overload demand as a heavy-duty machine.

Typical examples can include large centrifugal fans, pumps, and certain conveyor systems.

Normal Duty

The 650 HP Normal Duty rating is one of the most important specifications of this model.

It makes the drive suitable for large continuous industrial machinery where the motor operates under a substantial but relatively predictable load.

Large pumps, fans, compressors, conveyors, and process machinery can fall into this category depending on their actual load profile.

Heavy Duty

The Heavy Duty rating is approximately 500 HP.

Heavy-duty applications generally place greater thermal and overload demands on the drive.

Examples can include crushers, high-torque conveyors, demanding material-handling equipment, and machinery that repeatedly accelerates heavy loads.

The correct duty classification should be established from the actual application rather than selected only from the motor nameplate horsepower.

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5. Product Configuration

The catalog number 20G11TD740AN0NNNNN represents a specific PowerFlex 755 configuration.

Configuration Item	Specification
Product Family	PowerFlex 755
Input Type	AC Input with Precharge
Voltage	480 VAC
Phase	3 Phase
Current Class	740 A
Frame	Frame 8
Cooling	Forced Air
Enclosure	Open Type
Filtering	Filtered
CM Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Network	Embedded EtherNet/IP
DC Terminals	Included

One important detail is the AN configuration.

The AN configuration uses the filtered drive arrangement with the common-mode jumper removed.

This should be taken into account when replacing an existing drive or comparing the model with later configurations.

The complete catalog number should always be checked rather than assuming that two PowerFlex 755 drives with similar current ratings have identical configurations.

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6. Embedded EtherNet/IP Communication

One of the major advantages of the PowerFlex 755 platform is its integrated industrial-network capability.

The 20G11TD740AN0NNNNN includes embedded EtherNet/IP communication.

This allows the drive to become part of a larger automation system.

Typical communication functions include:

• Start and stop control
• Speed reference commands
• Frequency reference
• Current monitoring
• Drive status
• Fault status
• Alarm information
• Operating parameters
• Diagnostic information
• Motor operating data
• Commanded speed
• Actual speed
• Network-based configuration
• PLC integration
• HMI integration

This can significantly simplify the architecture of a large industrial machine.

Instead of using the drive as an isolated motor controller, the automation system can exchange operating information with the drive and coordinate it with other equipment.

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7. Cooling System

The 20G11TD740AN0NNNNN uses forced-air cooling.

For a drive with a 740 A current class, thermal management is a major part of the installation.

The cooling system needs a suitable airflow path and sufficient ventilation.

The installation environment should be evaluated for:

• Ambient temperature
• Dust
• Humidity
• Airflow
• Cabinet ventilation
• Fan operation
• Filter condition
• Heat dissipation
• Clearance around the drive

A large drive should not be installed into a restricted enclosure without calculating the resulting heat load.

Poor ventilation can increase component temperature and shorten the service life of power electronics.

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8. Physical Dimensions and Weight

The 20G11TD740AN0NNNNN is a large Frame 8 drive.

The physical dimensions of Frame 8 installations can vary according to the exact mechanical arrangement, accessories, mounting configuration, and cabinet implementation.

For planning purposes, the following values can be used as approximate engineering reference values.

Mechanical Parameter	Approximate Value
Model	20G11TD740AN0NNNNN
Frame	8
Approx. Width	720 mm
Approx. Height	2,185 mm
Approx. Depth	650 mm
Approx. Weight	335 kg
Mounting	Floor Mount
Construction	Open Type
Cooling	Forced Air
Installation Area	Industrial Electrical Room / Drive Cabinet
Handling	Heavy Mechanical Handling Required

The approximate weight of 335 kg means that the unit should be treated as heavy industrial electrical equipment.

Proper lifting equipment should be planned before installation.

The floor, support structure, cabinet base, mounting frame, and transportation path should all be evaluated for the actual equipment weight.

The dimensions above are intended as practical reference values rather than a substitute for the final mechanical drawing.

For final cabinet fabrication and installation, the exact configured dimension drawing should be used.

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9. Typical Product Applications

9.1 Large Conveyor Systems

The 20G11TD740AN0NNNNN is a strong candidate for large conveyor systems.

Heavy conveyors may use very large motors, especially in mining, aggregate handling, cement production, ports, steel plants, and bulk-material facilities.

Variable-speed control can provide smoother acceleration and deceleration.

This can reduce mechanical stress on:

• Gearboxes
• Couplings
• Conveyor belts
• Shafts
• Bearings
• Rollers
• Mechanical structures

The drive can also allow conveyor speed to be adjusted according to production requirements.

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10. Mining Applications

Mining equipment often requires very large motors and high-current drives.

Typical applications include:

• Ore conveyors
• Crushers
• Screens
• Feeders
• Pumps
• Fans
• Material-handling equipment
• Processing machinery

The Frame 8 architecture is well suited to large fixed installations where the electrical system and motor power are substantial.

Network communication can also allow the drive to be integrated with centralized mining automation systems.

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11. Cement and Aggregate Applications

Cement plants use large motors throughout the production process.

Potential applications include:

• Crushers
• Large fans
• Conveyors
• Pumps
• Material feeders
• Grinding equipment
• Dust extraction systems
• Process ventilation

The 650 HP Normal Duty rating gives this drive a substantial operating range for large continuous-process machinery.

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12. Pumping Systems

Large pumping systems are another important application.

The drive can regulate pump speed to match process demand.

Applications can include:

• Water treatment
• Cooling-water systems
• Industrial water circulation
• Process-fluid pumping
• Irrigation
• Utility pumping
• Large HVAC pumping

Variable-speed operation can also help reduce unnecessary mechanical throttling in suitable centrifugal-pump applications.

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13. Large Fan and Blower Systems

Large fans and blowers can require several hundred horsepower.

Typical applications include:

• Industrial ventilation
• Furnace ventilation
• Process exhaust
• Cement plants
• Steel plants
• Mining ventilation
• Combustion-air systems
• Large HVAC installations

The drive provides a way to regulate motor speed according to the actual airflow requirement.

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14. Compressor Applications

Large compressors can require high motor power and carefully controlled acceleration.

Potential applications include:

• Industrial air compressors
• Process compressors
• Gas-handling systems
• Chemical processing
• Refrigeration-related equipment
• Manufacturing facilities

Compressor applications should be evaluated carefully because the required torque profile can differ significantly between compressor types.

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15. Material Handling Equipment

The drive is also suitable for large material-handling systems.

Possible applications include:

• Heavy conveyors
• Transfer systems
• Feed systems
• Large hoisting-related machinery
• Bulk-material equipment
• Processing lines
• Industrial lifting machinery

Where high starting torque and repeated acceleration are required, the Heavy Duty rating should be considered rather than selecting the drive based solely on the motor’s nominal horsepower.

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16. Steel and Metal Processing

Steel mills and metal-processing plants often use high-power motors.

The drive can be considered for:

• Large fans
• Pumps
• Conveyors
• Cooling systems
• Material handling
• Processing machinery
• Production-line equipment

The ability to integrate the drive into an industrial Ethernet network is particularly useful where many motor-control devices are connected to a common PLC architecture.

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17. Utility and Power-Related Applications

Large industrial utilities also use substantial motor loads.

Potential applications include:

• Cooling-water pumps
• Ventilation fans
• Large auxiliary pumps
• Material-handling systems
• Process blowers
• Water circulation systems

The networked architecture can help operators monitor the drive as part of the overall plant system.

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18. Main Product Advantages

18.1 Very High Current Capacity

The biggest advantage of the 20G11TD740AN0NNNNN is its high current capacity.

At approximately 740 A in its Normal Duty configuration, the drive is intended for very large motors.

This makes it appropriate for applications where compact drives or smaller PowerFlex models are not capable of providing sufficient current.

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18.2 Large Horsepower Capability

The drive supports approximately:

• 700 HP Light Duty
• 650 HP Normal Duty
• 500 HP Heavy Duty

This makes it suitable for a wide range of large industrial machinery.

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18.3 High-Performance Motor Control

The PowerFlex 755 family is designed for demanding motor-control applications.

The platform provides considerably more capability than a basic low-cost VFD.

It is designed for industrial applications where speed control, torque control, feedback, diagnostics, communication, and system integration can all be important.

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18.4 Embedded EtherNet/IP

The integrated EtherNet/IP interface is particularly valuable in modern industrial plants.

The drive can communicate with automation controllers and provide operational information to higher-level systems.

This reduces the need for a completely independent drive-control architecture.

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18.5 Large Industrial Frame

The Frame 8 construction provides the physical space required for a high-current industrial drive.

This includes space for high-power electrical components, cooling equipment, wiring, terminals, and service access.

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18.6 Forced-Air Cooling

Forced-air cooling provides active thermal management for the high-power electrical components.

When properly installed and maintained, the cooling system supports continuous industrial operation.

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18.7 DC Terminals

The DC terminals provide additional flexibility for electrical-system design.

They can be useful in installations where DC-bus architecture or related power-system arrangements are part of the overall design.

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18.8 Filtered Configuration

The drive uses a filtered input configuration.

This is useful in industrial installations where electromagnetic compatibility is an important design consideration.

The drive should still be installed using proper grounding, cable routing, shielding, and motor-cable practices.

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18.9 Suitable for Plant-Wide Automation

Because the drive can communicate over EtherNet/IP, it can be integrated into a broader industrial control environment.

This is especially useful for production plants with multiple drives and centralized operator monitoring.

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19. Installation Advantages

The floor-mount Frame 8 design makes the drive suitable for centralized electrical installations.

A large industrial facility can install the drive in a dedicated drive room, MCC-style arrangement, or engineered electrical cabinet.

The physical size provides sufficient space for power connections and service access compared with compact wall-mounted products.

However, the large physical footprint also means that installation planning must begin early in the project.

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20. Installation Considerations

The following factors should be considered before installing the 20G11TD740AN0NNNNN:

Installation Item	Consideration
Supply Voltage	480 VAC, three-phase
Upstream Protection	Must be properly selected
Grounding	Proper industrial grounding required
Motor Cable	Sized for motor current and installation
EMC	Cable routing and shielding should be considered
Ventilation	Adequate airflow required
Ambient Temperature	Must remain within applicable limits
Cabinet Space	Large Frame 8 installation space required
Floor Loading	Must support approximately 335 kg reference weight
Lifting	Mechanical lifting equipment required
Service Clearance	Adequate maintenance access required
Network	EtherNet/IP architecture should be planned
Motor Protection	Motor thermal requirements should be considered
Maintenance	Cooling and electrical connections should be inspected

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21. Recommended Related PowerFlex 755 Models

The following five models are closely related to the 20G11TD740AN0NNNNN and are useful when selecting a different current or horsepower range within the same general PowerFlex 755 family.

Model	Voltage	Frame	LD Current	ND Current	HD Current	LD HP	ND HP	HD HP
20G11TD430AN0NNNNN	480 VAC, 3 PH	8	485 A	430 A	370 A	400 HP	350 HP	300 HP
20G11TD485AN0NNNNN	480 VAC, 3 PH	8	545 A	485 A	414 A	450 HP	400 HP	350 HP
20G11TD545AN0NNNNN	480 VAC, 3 PH	8	590 A	545 A	454 A	500 HP	450 HP	350 HP
20G11TD617AN0NNNNN	480 VAC, 3 PH	8	710 A	617 A	485 A	600 HP	500 HP	400 HP
20G11TD710AN0NNNNN	480 VAC, 3 PH	8	765 A	710 A	545 A	650 HP	600 HP	450 HP

These models form a useful progression.

The 20G11TD430AN0NNNNN is suitable when the motor requirement is substantially below the 650 HP class.

The 20G11TD545AN0NNNNN is useful around the 450 HP Normal Duty range.

The 20G11TD617AN0NNNNN provides approximately 500 HP Normal Duty capacity.

The 20G11TD710AN0NNNNN moves into the approximately 600 HP Normal Duty range.

The requested 20G11TD740AN0NNNNN provides approximately 650 HP Normal Duty capacity and sits above these models in the standard Frame 8 progression.

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22. Same-Series Comparison

Model	LD Rating	ND Rating	HD Rating	Approx. LD HP	Approx. ND HP	Approx. HD HP	Frame
20G11TD430AN0NNNNN	485 A	430 A	370 A	400 HP	350 HP	300 HP	8
20G11TD485AN0NNNNN	545 A	485 A	414 A	450 HP	400 HP	350 HP	8
20G11TD545AN0NNNNN	590 A	545 A	454 A	500 HP	450 HP	350 HP	8
20G11TD617AN0NNNNN	710 A	617 A	485 A	600 HP	500 HP	400 HP	8
20G11TD710AN0NNNNN	765 A	710 A	545 A	650 HP	600 HP	450 HP	8
20G11TD740AN0NNNNN	800 A	740 A	617 A	700 HP	650 HP	500 HP	8

This progression is particularly useful for plant standardization.

When multiple machines use large motors, maintaining a consistent PowerFlex 755 family can simplify engineering, spare-parts management, maintenance training, and troubleshooting.

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23. Five Popular Allen-Bradley Models from Other Related Drive Families

The following models represent other commonly used Allen-Bradley variable-frequency drives.

They are not direct replacements for the 20G11TD740AN0NNNNN. Their physical size and power ratings are much smaller, but they can be useful for other machines within the same industrial facility.

Model	Series	Voltage Class	Phase	Current Class	Typical Size	Typical Application
25B-D024N114	PowerFlex 525	480 VAC	3 PH	24 A class	Compact	General-purpose machinery
25B-D6P0N114	PowerFlex 525	480 VAC	3 PH	6 A class	Compact	Small pumps, fans, conveyors
20F11NC3P4JA0NNNNN	PowerFlex 753	480 VAC	3 PH	3.4 A class	Compact / Modular	Machine and process control
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC	3 PH	77 A class	Medium	Industrial machinery
25C-D043N114	PowerFlex 523	480 VAC	3 PH	43 A class	Compact	General motor control

These products occupy different parts of the drive market.

The PowerFlex 523 and PowerFlex 525 models are generally much smaller and are better suited to compact machines.

The PowerFlex 753 models provide more advanced industrial control capabilities for applications below the power range of the PowerFlex 755 Frame 8.

The 20G11TD740AN0NNNNN, by contrast, is intended for large industrial motor loads where hundreds of horsepower and several hundred amperes are required.

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24. Popular Model Comparison

Model	Series	Voltage	Phase	Current	Frame / Size	General Application
25B-D024N114	PowerFlex 525	480 VAC	3 PH	24 A class	Compact	Pumps, conveyors, machinery
25B-D6P0N114	PowerFlex 525	480 VAC	3 PH	6 A class	Compact	Small motors
20F11NC3P4JA0NNNNN	PowerFlex 753	480 VAC	3 PH	3.4 A class	Small	Precision industrial control
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC	3 PH	77 A class	Medium	Industrial machinery
25C-D043N114	PowerFlex 523	480 VAC	3 PH	43 A class	Compact	General-purpose applications

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25. Comparison with the 20G11TD710AN0NNNNN

The 20G11TD710AN0NNNNN and 20G11TD740AN0NNNNN are very closely related.

Both belong to the PowerFlex 755 Frame 8 family and are designed for 480 VAC three-phase systems.

The main difference is the available current and horsepower capacity.

Parameter	20G11TD710AN0NNNNN	20G11TD740AN0NNNNN
Frame	8	8
Voltage	480 VAC, 3 PH	480 VAC, 3 PH
LD Current	765 A	800 A
ND Current	710 A	740 A
HD Current	545 A	617 A
LD HP	650 HP	700 HP
ND HP	600 HP	650 HP
HD HP	450 HP	500 HP
Cooling	Forced Air	Forced Air
Input	AC with Precharge and DC Terminals	AC with Precharge and DC Terminals
Filtering	Filtered	Filtered
Dynamic Braking	None	None
HIM	Blank / No HIM	Blank / No HIM
Communication	Embedded EtherNet/IP	Embedded EtherNet/IP

The 20G11TD740AN0NNNNN therefore provides a step up in capacity.

For a motor application near the upper end of the 600 HP range, the 740 A model provides additional capacity and may offer more appropriate operating margin.

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26. Difference Between AN and JN Configurations

The catalog number requested here ends in AN0NNNNN.

A closely related configuration is the 20G11TD740JN0NNNNN.

The main configuration difference concerns the common-mode jumper.

Feature	20G11TD740AN0NNNNN	20G11TD740JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	480 VAC, 3 PH	480 VAC, 3 PH
Current	740 A	740 A
Frame	8	8
Cooling	Forced Air	Forced Air
Filtering	Filtered	Filtered
CM Jumper	Removed	Installed
Dynamic Braking	None	None
HIM	Blank	Blank
DC Terminals	Yes	Yes
Embedded EtherNet/IP	Yes	Yes

The JN configuration uses the CM jumper installed, which is described as the preferred configuration in the newer product configuration.

The AN configuration uses the jumper removed.

When replacing an existing drive, the complete catalog number and actual system requirements should therefore be checked rather than treating these two configurations as completely interchangeable without engineering review.

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27. Mechanical Installation

The physical size of the 20G11TD740AN0NNNNN is one of the most important differences between this drive and compact PowerFlex products.

A Frame 8 installation requires considerably more space.

The installation design should provide room for:

• Incoming power cables
• Motor cables
• Grounding conductors
• Network cables
• Cooling airflow
• Service access
• Power connections
• Control wiring
• Maintenance work
• Lifting and handling

A large floor-mounted drive should not be squeezed into a small electrical cabinet simply to save floor space.

Adequate ventilation and service clearance are essential to reliable operation.

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28. Maintenance and Reliability

For a high-power drive of this size, preventive maintenance is especially important.

The cooling system should be inspected regularly.

Maintenance personnel should check:

• Cooling fans
• Airflow
• Dust accumulation
• Electrical terminals
• Grounding connections
• Power connections
• Motor cables
• Network connections
• Drive alarms
• Fault history
• Cabinet temperature
• Environmental conditions

Keeping the cooling path clean is particularly important because restricted airflow can increase internal component temperature.

Large industrial installations should normally include the drive in a scheduled preventive-maintenance program.

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29. Spare Parts and Plant Standardization

For large industrial plants, standardization can be a major advantage.

Using several related PowerFlex 755 models can simplify:

• Spare-parts management
• Technician training
• Troubleshooting
• Parameter management
• Control-system integration
• Maintenance procedures
• Commissioning
• Replacement planning

The 20G11TD740AN0NNNNN is therefore not only a motor-control component; it can also form part of a broader plant-wide drive standard.

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30. Engineering Selection Guidelines

When selecting the 20G11TD740AN0NNNNN, engineers should consider more than motor horsepower.

The following parameters should be evaluated:

Selection Factor	Importance
Motor Rated Current	Critical
Motor Voltage	Critical
Motor Horsepower	Critical
Duty Classification	Critical
Overload Requirement	Critical
Acceleration Time	Important
Deceleration Time	Important
Load Inertia	Important
Ambient Temperature	Important
Installation Altitude	Important
Motor Cable Length	Important
EMC Requirements	Important
Network Architecture	Important
Cooling Arrangement	Critical
Cabinet Space	Critical
Floor Loading	Important
Service Clearance	Important

The motor nameplate current is particularly important.

A drive should not be selected solely because its horsepower rating appears higher than the motor horsepower.

The actual motor current and process load characteristics must also be considered.

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31. Product Advantages at a Glance

Advantage	Description
High Current Capacity	740 A class Normal Duty rating
Large Motor Capability	Up to approximately 700 HP Light Duty
Industrial Architecture	Frame 8 high-power construction
Network Integration	Embedded EtherNet/IP
Flexible Duty Selection	LD, ND and HD application ratings
Cooling	Forced-air thermal management
DC Bus Flexibility	DC terminals included
EMC Support	Filtered configuration
Large Process Equipment	Suitable for conveyors, pumps, fans and heavy machinery
Plant Integration	Suitable for centralized automation
Serviceability	Designed for industrial installation and maintenance
Scalability	Closely related models available within the same family

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32. Overall Product Summary

Category	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Model	20G11TD740AN0NNNNN
Product Type	High-Power AC Drive
Voltage	480 VAC
Phase	3 Phase
Current	740 A class
LD Rating	700 HP
ND Rating	650 HP
HD Rating	500 HP
Approx. LD Power	522 kW
Approx. ND Power	485 kW
Approx. HD Power	373 kW
Frame	8
Cooling	Forced Air
Construction	Open Type
Input	AC Input with Precharge
DC Terminals	Yes
Filtering	Filtered
CM Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Approx. Width	720 mm
Approx. Height	2,185 mm
Approx. Depth	650 mm
Approx. Weight	335 kg
Main Application	Large Industrial Motor Control

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33. Final Assessment

The Allen-Bradley 20G11TD740AN0NNNNN PowerFlex 755 AC Drive is a large industrial variable-frequency drive intended for applications requiring substantial motor power and high current capacity.

Its 480 VAC three-phase input, 740 A class rating, 700 HP Light Duty capability, 650 HP Normal Duty capability, 500 HP Heavy Duty capability, Frame 8 construction, forced-air cooling, embedded EtherNet/IP, filtered input, and DC-terminal architecture make it suitable for demanding industrial motor-control systems.

The model is especially attractive for large conveyors, pumps, fans, blowers, compressors, mining equipment, crushers, cement equipment, material-handling systems, steel-processing machinery, and other large process applications.

The 650 HP Normal Duty rating is a particularly useful reference point for engineers evaluating large continuous-duty machinery.

For applications requiring higher overload performance, the Heavy Duty rating should be considered carefully rather than simply relying on the motor’s nameplate horsepower.

The physical size is also significant.

With an approximate Frame 8 reference size of 720 × 2,185 × 650 mm and an approximate weight of 335 kg, this is a substantial piece of industrial electrical equipment. Mechanical handling, floor loading, ventilation, cable routing, cabinet construction, and maintenance access should therefore be included in the project design from the beginning.

Another important characteristic is the AN configuration, which uses the filtered arrangement with the common-mode jumper removed.

When replacing or upgrading a PowerFlex 755 drive, the complete catalog number should be checked because apparently similar models can differ in filtering, jumper configuration, enclosure, braking, HIM, and other options.

From a plant-standardization perspective, the PowerFlex 755 Frame 8 family is also attractive because related models such as 20G11TD430AN0NNNNN, 20G11TD485AN0NNNNN, 20G11TD545AN0NNNNN, 20G11TD617AN0NNNNN, and 20G11TD710AN0NNNNN provide a graduated range of current and horsepower ratings.

This allows a plant to use the same general drive family across multiple large machines while selecting the appropriate current capacity for each motor.

Overall, the 20G11TD740AN0NNNNN is best viewed as a high-capacity, network-integrated industrial drive for large motor applications where reliability, flexible speed control, centralized automation, and substantial electrical capacity are more important than compact physical size.