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20G11LD1K0AN0NNNNN — Detailed Product Information, Technical Specifications, Applications and Model Recommendations

1. Product Overview

The 20G11LD1K0AN0NNNNN is a high-power industrial AC variable frequency drive designed for large three-phase motor applications.

It belongs to the PowerFlex 755 family and is configured as an air-cooled, Frame 9, MCC-style AC drive for very large motors.

The model is rated for a 480 VAC, three-phase input system and has an exceptionally high 1045 A output-current rating. Its drive capacity is approximately 1000 HP in Light Duty, 900 HP in Normal Duty and 750 HP in Heavy Duty.

The unit is intended for demanding industrial installations where accurate motor-speed control, controlled acceleration and deceleration, high power capacity and industrial network integration are required.

The catalog configuration also identifies an 800 mm deep MCC-style enclosure, IP20 / Type 1 construction, embedded EtherNet/IP, AC input with DC terminals, filtering and no HIM/display installed.

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2. Brand and Product Series

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3. Main Technical Specifications

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4. Understanding the Power Ratings

The three horsepower ratings are important because the appropriate rating depends on the motor’s actual load characteristics.

A motor should not be selected solely by comparing its horsepower to the largest number shown in the table.

The actual motor full-load current, overload requirement, acceleration profile, ambient conditions and load characteristics should all be considered.

For a demanding constant-torque application, the 750 HP Heavy Duty value is the more appropriate reference.

For a general industrial load, the 900 HP Normal Duty value provides the relevant comparison.

For suitable lighter-duty or variable-torque applications, the 1000 HP Light Duty rating may be applicable.

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5. 1045 A Output Current

The 1045 A output current is one of the most important characteristics of this model.

This is a very large industrial drive and is intended for motor systems requiring extremely high current capacity.

The high-current design makes it appropriate for large:

• Conveyors
• Pumps
• Fans
• Blowers
• Material-handling systems
• Process machinery
• Mining equipment
• Cement machinery
• Steel-processing equipment
• Large industrial ventilation systems

The 1045 A rating also means that the upstream electrical system, motor cables, protection equipment and mechanical installation must all be designed for a high-power application.

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6. 480 VAC Three-Phase Operation

The model is designed for a 480 VAC three-phase industrial power system.

This voltage class is widely used in large industrial installations.

At this power level, electrical-system design becomes especially important.

The installation should take into consideration:

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7. Physical Construction

The 20G11LD1K0AN0NNNNN is a Frame 9 high-power drive.

It uses an 800 mm deep MCC-style enclosure and is designed for floor-standing industrial installation.

This construction provides the physical space required for:

• High-current power components
• Power switching devices
• Cooling equipment
• Input components
• DC terminals
• Output connections
• Control equipment
• Internal bus structures
• Protection equipment

It is therefore substantially larger than compact wall-mounted variable frequency drives.

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8. Dimensions and Weight

The exact physical dimensions and shipping weight can vary depending on the complete configured package and mechanical arrangement.

For preliminary engineering and installation planning, the following values can be used as approximate planning figures.

The 800 mm depth is the clearest mechanical specification associated with this configuration.

For final foundation design, shipping arrangements, crane selection, floor-loading calculations or detailed cabinet layout, the exact mechanical drawing for the configured unit should be used.

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9. Product Introduction

The 20G11LD1K0AN0NNNNN is intended for large industrial AC motor control where conventional motor starters are insufficient for the required level of speed and process control.

A conventional starter generally controls whether a motor is energized or de-energized.

A variable frequency drive provides much greater control over the motor.

The drive can regulate operating speed and provide controlled acceleration and deceleration.

This becomes particularly valuable in large machines where sudden starting or stopping can create substantial mechanical stress.

For example, a very large conveyor can require a carefully controlled acceleration sequence.

A large pump may not need to operate continuously at full speed.

A large fan may need different operating speeds according to process demand.

In these situations, variable-speed control can improve both machine operation and process control.

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10. No HIM Configuration

A notable characteristic of 20G11LD1K0AN0NNNNN is its blank / No HIM configuration.

This means the catalog configuration does not include a local Human Interface Module mounted on the front of the drive.

This arrangement can be attractive in installations where the drive is normally operated through:

• PLC control
• HMI
• Supervisory control
• Industrial network
• Remote control station
• Centralized plant automation

A no-HIM configuration can also provide a cleaner cabinet front when local manual operation is not required.

For maintenance, commissioning and local parameter access, an appropriate compatible interface or engineering workstation may be used according to the overall control architecture.

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11. Embedded EtherNet/IP

Embedded EtherNet/IP communication is another important feature.

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

Typical information exchanged with the control system may include:

For large automated production systems, network integration can be particularly valuable because many drives can be coordinated from a central control system.

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12. Applications

12.1 Large Conveyor Systems

Large conveyors are a strong application for this type of high-current drive.

Typical examples include:

• Mining conveyors
• Bulk-material conveyors
• Port conveyors
• Cement conveyors
• Ore-handling conveyors
• Steel-plant conveyors
• Long-distance industrial conveyors

The drive can provide controlled acceleration and deceleration.

This can reduce mechanical shock to:

• Conveyor belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Drive pulleys

For long conveyor systems, controlled speed can also help coordinate material flow.

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13. Mining Applications

Mining equipment frequently requires very large motors and demanding torque characteristics.

Potential applications include:

• Ore conveyors
• Material-transfer systems
• Dewatering pumps
• Ventilation fans
• Processing equipment
• Crushing-related equipment
• Screening systems
• Bulk-material handling

The 1045 A current capability provides substantial capacity for large motor installations.

For high-inertia or high-starting-torque machines, the Heavy Duty rating should be evaluated carefully.

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14. Pump Applications

Large industrial pumps can benefit significantly from variable-speed operation.

Potential applications include:

• Water-transfer pumps
• Cooling-water pumps
• Industrial process pumps
• Mine dewatering systems
• Wastewater systems
• Circulation pumps
• Large fluid-transfer systems

Variable-speed control can allow the motor to operate closer to the actual process requirement.

In suitable centrifugal pump applications, reducing motor speed can also provide substantial energy savings.

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15. Fan and Blower Applications

Large industrial fans and blowers can require hundreds of kilowatts of motor power.

Typical applications include:

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

Variable-speed control can adjust airflow without relying entirely on mechanical throttling.

This can improve process control and may reduce energy consumption in variable-torque applications.

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16. Material Handling

The drive can be applied to large material-handling equipment where controlled acceleration and speed regulation are important.

Examples include:

• Bulk-material handling
• Transfer machinery
• Large elevators
• Industrial lifting-related systems
• Conveying equipment
• Storage and recovery machinery

The exact suitability depends on the torque profile and any special braking or regenerative requirements.

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17. Cement and Mineral Processing

Large cement and mineral-processing facilities often contain numerous high-power motors.

Possible applications include:

• Large conveyors
• Process fans
• Material-transfer systems
• Large pumps
• Dust-collection systems
• Process machinery
• Bulk-material equipment

The high-power capability of this drive makes it particularly suitable for the largest machines in a plant.

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18. Steel and Metal Processing

Large steel and metal-processing plants also use high-power motors for many production processes.

Possible applications include:

• Large conveyors
• Process fans
• Cooling equipment
• Transfer equipment
• Material-handling machinery
• Auxiliary process systems

EtherNet/IP communication can help integrate the drive into larger production-control architectures.

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19. Compressor Applications

Large compressors can also be considered, but compressor applications require more careful engineering.

The motor’s:

• Starting torque
• Speed range
• Load curve
• Acceleration requirement
• Deceleration requirement
• Overload requirement

should be compared with the drive capability before selection.

A drive that is electrically large enough is not automatically suitable for every compressor application.

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20. Main Product Advantages

20.1 Very High Current Capacity

The 1045 A output rating is the main advantage of this model.

It places the drive firmly in the high-power industrial category.

It can accommodate motor systems that are far beyond the practical range of compact VFDs.

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20.2 Large Motor Capability

The drive provides:

• 1000 HP Light Duty
• 900 HP Normal Duty
• 750 HP Heavy Duty

This provides considerable flexibility when selecting the drive for different load conditions.

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20.3 Controlled Acceleration

Large motors can create considerable mechanical stress when started directly across the line.

A variable frequency drive can provide a controlled acceleration profile.

This can reduce stress on:

• Motors
• Gearboxes
• Shafts
• Couplings
• Belts
• Chains
• Conveyor systems

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20.4 Controlled Deceleration

Controlled deceleration can help prevent abrupt stopping.

This is particularly useful on large rotating machinery with high inertia.

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20.5 Industrial Network Integration

Embedded EtherNet/IP allows the drive to be integrated into a larger automation system.

This can reduce the need for separate communication hardware for basic network connectivity.

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20.6 High-Power Industrial Construction

The Frame 9, MCC-style construction is intended for large industrial installations.

It provides the physical architecture required for a very high-current drive.

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20.7 Flexible Application Platform

The PowerFlex 755 platform is designed for a broad range of industrial motor-control applications.

It can support different combinations of control, feedback, communication and safety functionality depending on the overall configuration.

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20.8 No-HIM Configuration

The blank front-panel configuration is useful for centralized automation systems.

The machine can be controlled from an HMI, PLC or supervisory system rather than requiring a local keypad.

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21. Typical Application Suitability

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22. Recommended Related Models — Same Series

The following models are closely related PowerFlex 755 configurations and are useful for comparison when the 20G11LD1K0AN0NNNNN is being evaluated.

The first three models are especially close because they retain the same 1045 A electrical capacity while changing the interface or configuration suffix.

The 20G11LD1K1 and 20G11LD1K2 versions provide higher current capacity and are therefore worth considering when additional motor-current margin is required.

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23. Comparison of 1045 A Configurations

The AN0 version is particularly suitable when a local HIM is not required.

The JN2 and JN4 configurations are more appropriate when a local enhanced LCD interface is desired.

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24. Higher-Current Alternative — 20G11LD1K1AN0NNNNN

The 20G11LD1K1AN0NNNNN is a closely related PowerFlex 755 configuration with a higher current rating.

This model is worth considering when the 1045 A capacity is close to the application’s required current and additional margin is desired.

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25. Higher-Current Alternative — 20G11LD1K2AN0NNNNN

The 20G11LD1K2AN0NNNNN provides another step upward in current capacity.

This is useful where a somewhat higher output-current capacity is required without moving to a fundamentally different drive platform.

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26. Five Popular Models from the Same Brand

The following models represent commonly used products from the same brand family and provide a broader comparison across power levels.

These models cover a very wide range of motor sizes.

The first two are compact drives, while the last two are large Frame 9 industrial drives.

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27. Compact Alternative — 25B-D2P3N114

The 25B-D2P3N114 belongs to a much smaller power class.

This model is obviously not a replacement for the 1045 A drive.

It is included to illustrate the much broader range of drive sizes available within the same product ecosystem.

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28. Compact Alternative — 25B-D6P0N114

The 25B-D6P0N114 is another compact drive.

It is appropriate only for considerably smaller motor systems.

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29. Medium-Power Alternative — 20F11ND077JA0NNNNN

The 20F11ND077JA0NNNNN is part of the PowerFlex 753 family.

This is considerably smaller than the 1045 A Frame 9 drive.

It is useful when the motor requirements are substantially lower.

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30. Why Choose the 20G11LD1K0AN0NNNNN?

The model is particularly attractive when the application has the following characteristics:

• Large three-phase AC motor
• 480 VAC industrial supply
• Motor current approaching 1045 A
• Large conveyor
• Large pump
• Large fan
• Large blower
• Mining machinery
• Cement-processing equipment
• Steel-processing equipment
• Large material-handling equipment
• Centralized automation
• EtherNet/IP control
• No requirement for an integrated front-mounted HIM
• Floor-standing MCC-style installation

The combination of very high current capacity and industrial network connectivity makes it suitable for large automated machinery.

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31. Installation Considerations

A drive of this size requires considerably more installation planning than a compact VFD.

Electrical Installation

The following items should be evaluated:

• Incoming 480 VAC supply
• Transformer capacity
• Short-circuit current
• Protective devices
• Feeder sizing
• Motor cable sizing
• Grounding
• Motor insulation
• Harmonic effects
• Electromagnetic compatibility
• Control wiring
• Network wiring

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Mechanical Installation

Mechanical planning should include:

• Cabinet height
• Cabinet width
• 800 mm cabinet depth
• Floor loading
• Transportation route
• Lifting equipment
• Service access
• Door clearance
• Cable-entry arrangements
• Cooling airflow
• Maintenance clearance

The approximate 1200 kg weight class means that transportation and positioning should be planned before the equipment arrives on site.

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32. Maintenance Considerations

The no-HIM configuration means that the drive does not provide the same front-panel local display arrangement as versions equipped with an enhanced LCD interface.

For a centralized automation system, this is often not a disadvantage.

The drive can instead be managed through the control architecture.

Typical maintenance activities include:

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33. Energy-Saving Potential

Variable-speed drives can provide substantial energy benefits when applied to suitable variable-torque loads.

For example, large centrifugal fans and pumps often do not need to run at full speed continuously.

Reducing speed can reduce the power required by the machine.

This is especially valuable in:

• Cooling systems
• Water systems
• Ventilation systems
• Process-air systems
• Industrial pumping systems

For constant-torque equipment such as conveyors, the main benefits may instead be:

• Controlled starting
• Reduced mechanical stress
• Improved speed regulation
• Better process control
• Reduced shock loading

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34. Product Selection Checklist

Before selecting the 20G11LD1K0AN0NNNNN, the following motor information should be confirmed.

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35. Quick Comparison of Recommended Models

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36. Overall Advantages Summary

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37. Final Technical Summary

38. Conclusion

The 20G11LD1K0AN0NNNNN is a very high-capacity industrial drive designed for large 480 VAC three-phase motors.

Its 1045 A output current, 1000 HP Light Duty, 900 HP Normal Duty and 750 HP Heavy Duty ratings put it firmly into the large industrial-drive category.

The PowerFlex 755 platform provides the flexibility needed for applications ranging from large conveyors and pumps to mining, cement, steel and other heavy industrial machinery.

The Frame 9, 800 mm deep MCC-style construction provides the physical architecture required for such a high-current drive, while the forced-air cooling system is intended to manage the thermal requirements associated with high-power operation.

The embedded EtherNet/IP capability makes the drive particularly suitable for centralized automation systems where motor control, status monitoring, fault information and speed references need to be exchanged with the plant control system.

The AN0 configuration without a HIM is useful where local keypad operation is not required and the drive is primarily controlled through a PLC, HMI or supervisory system.

For applications requiring the same electrical rating but a local operator interface, the related 20G11LD1K0JN2NNNNN and 20G11LD1K0JN4NNNNN configurations are more appropriate candidates.

For applications requiring additional current capacity, the 20G11LD1K1AN0NNNNN and 20G11LD1K2AN0NNNNN provide useful higher-current alternatives.

Overall, the 20G11LD1K0AN0NNNNN is best viewed as a large, floor-standing, high-current industrial motor-control solution for applications where reliability, high power capacity, controlled motor operation and integration with an industrial automation system are more important than compact size.