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1. Product Overview

The 20G11LD2K0AN0NNNNN is a high-power AC variable-frequency drive in the PowerFlex 755 family.

It is designed for large three-phase industrial motors where conventional small and medium-size drives are not sufficient. The unit is intended for demanding applications requiring high motor current, controlled acceleration and deceleration, adjustable operating speed, and integration into an industrial automation system.

The model belongs to the large-frame, floor-standing category. Its 480 VAC, three-phase, 2070 A rating places it in the very-high-power range, making it suitable for large conveyors, pumps, fans, blowers, mining equipment, bulk-material handling systems and other heavy industrial machinery.

The key point when evaluating this model is its very large current capacity. A 2070 A drive is intended for a completely different scale of equipment from compact drives used for small pumps, fans or machine tools.

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2. Brand, Series and Product Classification

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3. Main Technical Parameters

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4. Power Rating

The 20G11LD2K0AN0NNNNN is a very large-capacity drive.

Its principal horsepower ratings can be summarized as follows:

These ratings are important because the correct drive selection depends on the actual operating duty.

A motor that appears suitable based only on horsepower may require a different drive if it experiences frequent overloads, high starting torque, rapid acceleration, high inertia or continuous heavy-duty operation.

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5. What the 20G11LD2K0AN0NNNNN Is Designed to Do

The basic purpose of the drive is to control the electrical power supplied to a large AC motor.

Instead of simply connecting the motor directly to a fixed-frequency supply, the drive electronically controls the motor’s operating conditions.

The basic power path can be represented as:

Three-Phase AC Input → Rectifier/Input Section → DC Bus → Inverter → Variable-Frequency AC Output → Motor

By controlling the output frequency and voltage, the drive can regulate motor speed and torque.

For a large industrial motor, this provides much greater control than a simple across-the-line starter.

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6. Product Introduction

The PowerFlex 755 platform is intended for industrial applications where motor performance, process control and integration are important.

The 20G11LD2K0AN0NNNNN represents a particularly large configuration within this product family.

With a current capacity of 2070 A, it is intended for applications involving extremely large motors.

This type of equipment is normally found in large industrial plants rather than small workshops.

Typical environments can include:

• Mining operations
• Cement plants
• Steel production
• Bulk-material handling
• Large water systems
• Industrial processing
• Large ventilation systems
• Material transportation
• Heavy manufacturing
• Large pumping installations

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7. High-Current Architecture

The defining characteristic of this model is its 2070 A current rating.

This is important because motor current is directly related to the electrical power that the drive must handle.

At this scale, the power section is considerably more substantial than that found in compact VFDs.

The equipment therefore requires appropriate consideration of:

• Incoming electrical capacity
• Motor cable sizing
• Busbar arrangements
• Heat dissipation
• Cooling airflow
• Protective devices
• Grounding
• Cabinet ventilation
• Maintenance access
• Installation space

The drive should be regarded as major electrical infrastructure within the plant.

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8. Large Industrial Motor Control

The 20G11LD2K0AN0NNNNN is intended for motors that can consume very large amounts of electrical power.

Typical motor applications may include:

• Large conveyor drives
• Large pumps
• High-capacity fans
• Industrial blowers
• Crushers
• Processing machinery
• Mine equipment
• Large material-handling systems
• Industrial ventilation systems

The actual suitability depends on motor nameplate current, duty cycle, voltage, speed range and load characteristics.

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9. Applications

9.1 Large Conveyor Systems

Large conveyors are one of the strongest potential applications for a drive in this capacity class.

Examples include:

• Long-distance mining conveyors
• Ore conveyors
• Coal conveyors
• Aggregate conveyors
• Port conveyors
• Bulk-material conveyors
• Transfer conveyors
• Stockyard conveyors
• Heavy-duty production conveyors

A large conveyor can have enormous mechanical inertia.

Starting such a system too aggressively can produce high mechanical stress.

A variable-frequency drive can provide controlled acceleration.

This allows the motor to build speed progressively instead of immediately applying full mechanical acceleration.

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10. Mining Applications

Large mining equipment frequently requires motors with very high power ratings.

Potential applications include:

• Ore transport
• Conveyor systems
• Material transfer
• Crushing equipment
• Mine ventilation
• Dewatering
• Processing systems
• Bulk-material handling

The 2070 A current capability gives the drive the capacity required for very large motors.

In mining environments, however, the electrical installation must also consider dust, temperature, vibration, maintenance access and ventilation.

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11. Large Pump Applications

The drive can be applied to high-power pumping systems.

Possible uses include:

• Industrial water transfer
• Cooling-water systems
• Mine dewatering
• Process-water circulation
• Large pumping stations
• Wastewater handling
• Industrial fluid transfer
• Water distribution systems

A variable-speed pump system can adjust the pump motor speed according to actual process demand.

This can be particularly useful when the required flow rate changes during normal operation.

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12. Large Fan Applications

Large industrial fans can require substantial motor power.

Potential applications include:

• Mine ventilation
• Industrial exhaust
• Furnace ventilation
• Process ventilation
• Cooling systems
• Large air-handling equipment
• Industrial extraction systems

Variable-speed operation allows airflow to be adjusted without relying solely on mechanical throttling.

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13. Large Blower Applications

Large blowers can also benefit from variable-frequency control.

Potential applications include:

• Process air
• Combustion air
• Industrial ventilation
• Furnace systems
• Dust collection
• Process gas systems
• Large pneumatic processes

The drive can regulate blower speed according to the operating requirements of the process.

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14. Cement and Aggregate Equipment

Large cement and aggregate facilities often contain high-power motors.

The drive can be considered for:

• Large material conveyors
• Process fans
• Exhaust systems
• Blowers
• Material transfer
• Crushing-related equipment
• Processing machinery

The 2000 HP Light-Duty rating places the model in the range required by some very large process machines.

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15. Steel and Heavy Manufacturing

Heavy manufacturing plants may use large motors for:

• Large fans
• Pumps
• Conveyors
• Process lines
• Material handling
• Cooling systems
• Large rotating machinery

The advantage of a large VFD in these applications is not simply speed adjustment.

It can also provide a more controlled relationship between the motor and the mechanical process.

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16. Port and Bulk-Material Handling

Large port facilities can use powerful motor-driven equipment for:

• Ship loading
• Ship unloading
• Conveyor transfer
• Bulk storage
• Material transportation
• Yard conveyors
• Large lifting or handling machinery

Controlled motor acceleration can be useful where mechanical shock must be minimized.

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17. Main Product Advantages

17.1 Very High Current Capacity

The most obvious advantage is the 2070 A current rating.

This makes the drive suitable for extremely large motor installations.

It is not intended to compete with small or medium-frame drives. Its purpose is to handle applications where motor power requirements are measured in hundreds or thousands of horsepower.

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18. High Horsepower Capability

The model provides:

• 2000 HP Light Duty
• 1750 HP Normal Duty
• 1650 HP Heavy Duty

This gives the drive considerable capacity for large industrial machines.

The Heavy-Duty rating is particularly important when the machine experiences significant load torque or frequent overload conditions.

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19. Controlled Motor Starting

Large motors can draw significant current during direct starting.

A VFD can gradually increase the motor speed.

This provides a smoother starting process and can reduce mechanical shock.

Potential benefits include reduced stress on:

• Couplings
• Gearboxes
• Shafts
• Bearings
• Belts
• Conveyor structures
• Mechanical transmission systems

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20. Controlled Stopping

The drive can also provide controlled deceleration.

This is useful where the machine must stop in a predictable manner.

For example, a large conveyor may need to reduce speed gradually instead of stopping abruptly.

The appropriate stopping strategy depends on the load inertia and braking requirements.

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21. Variable-Speed Operation

Variable-speed control is one of the main reasons to use this type of drive.

The motor can operate at different speeds according to process demand.

This is especially useful for:

• Pumps
• Fans
• Blowers
• Conveyors
• Process machinery

The speed reference can be generated locally or supplied by a higher-level control system.

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22. Process Optimization

A variable-speed drive allows the machine operating point to be adjusted.

For example:

A pump does not necessarily need to run at maximum speed all the time.

A fan may require different airflow during different production stages.

A conveyor may need to operate at different speeds depending on the material flow.

The drive provides the electrical control needed to make those adjustments.

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23. Potential Energy Benefits

In suitable applications, variable-speed operation can reduce energy consumption.

This is particularly relevant to centrifugal pumps and fans.

If process demand decreases, reducing motor speed can reduce the amount of power consumed.

The actual energy saving depends on:

• Load profile
• Operating hours
• Motor efficiency
• Pump or fan characteristics
• Process requirements
• Control strategy

Therefore, energy savings should be calculated from actual operating data.

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24. Industrial Automation

The PowerFlex 755 platform is intended for integration into industrial control systems.

A typical system can be represented as:

PLC / Controller → Drive → Motor → Machine → Process

The control system may monitor:

• Speed reference
• Actual speed
• Motor current
• Drive status
• Alarm status
• Fault status
• Operating mode
• Process conditions

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

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25. Mechanical Construction

The model uses a large floor-standing cabinet arrangement.

The specified cabinet depth is:

800 mm

This should be taken into consideration during plant layout.

The installation should allow sufficient room for:

• Front access
• Cable entry
• Electrical connections
• Cooling airflow
• Inspection
• Component replacement
• Maintenance activities

Because the drive is physically large, transportation planning should also be completed before delivery.

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26. Dimensions and Weight

The requested mechanical information is summarized below.

For this particular large-frame model, providing an invented kilogram value would be misleading.

The weight can vary according to cabinet arrangement, power-section configuration and shipping configuration. For a purchase specification, foundation calculation or lifting plan, the exact kg value should come from the equipment drawing or packing documentation associated with the specific unit.

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27. Electrical Parameter Summary

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28. Cooling System

A 2070 A drive generates significant heat.

The forced-air cooling system is therefore an important part of normal operation.

Installation should provide:

• Adequate airflow
• Clean air passages
• Correct fan operation
• Sufficient ventilation
• Appropriate ambient temperature
• Adequate exhaust clearance

Dust accumulation can interfere with heat transfer and airflow.

In harsh industrial environments, regular inspection of the cooling system is particularly important.

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29. Environmental Considerations

The specified enclosure is Type 1 / IP20.

This means the equipment should be installed in a suitable controlled industrial environment.

The drive should not automatically be considered suitable for direct outdoor exposure, water spray or uncontrolled environmental conditions.

Important environmental factors include:

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30. Installation Requirements

Because of the size and power level of the drive, installation should be treated as an engineering project.

The following items should be evaluated before installation:

1. Incoming electrical supply.
2. Motor full-load current.
3. Motor voltage.
4. Motor duty cycle.
5. Cable size.
6. Grounding.
7. Protective equipment.
8. Cabinet location.
9. Floor loading.
10. Transportation route.
11. Lifting method.
12. Cooling airflow.
13. Maintenance access.
14. Control-system integration.
15. Communication requirements.

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31. Five Same-Series or Closely Related Models

The following models are useful for comparison when selecting a PowerFlex 755 high-power configuration.

The 20G11LD2K0AN0NNNNN is the highest-capacity option in this particular comparison group.

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32. Comparison of the Five Related Models

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33. Five Related Models from the Same Brand

For a broader product selection, the following models cover smaller, medium and high-power drive applications.

These should be regarded as related product choices rather than direct substitutes.

The 25B models are intended for dramatically smaller motors.

The 20F model occupies a medium-power industrial category.

The 20G models are intended for very large motor installations.

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34. Model 25B-D2P3N114

This is a small-drive solution and is not an electrical replacement for the 2070 A model.

It is useful mainly as a reference point showing how dramatically the drive capacity changes across the product range.

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35. Model 25B-D6P0N114

This model is suitable for considerably smaller motors.

It would normally be selected where compact installation and modest motor power are more important than extremely high current capability.

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36. Model 20F11ND077JA0NNNNN

This model sits substantially below the 2070 A configuration in terms of electrical capacity.

It may be more appropriate for medium-size industrial machinery.

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37. Model 20G11LD1K5AN0NNNNN

This is one of the closest lower-capacity comparisons to the 20G11LD2K0AN0NNNNN.

The primary difference is current and motor-power capacity.

The 1525 A configuration is intended for somewhat smaller motors than the 2070 A configuration.

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38. Model 20G11LD2K0AN0NNNNN

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39. Application Selection Table

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40. Advantages for Conveyor Systems

The model is particularly attractive for large conveyor systems because it provides substantial motor-control capacity.

A large conveyor can experience:

• High starting inertia
• Variable material loading
• Long acceleration times
• High torque requirements
• Frequent speed changes
• Controlled stopping requirements

A variable-frequency drive can make the motor response more controllable.

This can help reduce sudden mechanical loading on the drive train.

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41. Advantages for Pump Systems

For pumping applications, the drive can adjust motor speed according to flow requirements.

Potential advantages include:

• Adjustable flow
• Adjustable pressure
• Reduced unnecessary throttling
• Smooth starting
• Controlled stopping
• Better process flexibility
• Potential energy reduction

The actual benefit depends heavily on the pump type and system characteristics.

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42. Advantages for Fan Systems

For fan applications, variable-speed operation can provide a convenient way of matching airflow to actual demand.

Potential benefits include:

• Adjustable airflow
• Controlled starting
• Reduced mechanical shock
• Process flexibility
• Potential energy savings
• Better integration with automatic control

This is particularly relevant in large ventilation systems.

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43. Advantages for Mining Equipment

Mining equipment often operates under demanding conditions.

A high-power drive can provide:

• Large motor capacity
• Controlled acceleration
• Controlled stopping
• Adjustable speed
• Process integration
• High-current capability

However, the enclosure and installation environment must be matched to the actual mining conditions.

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44. Maintenance Considerations

Large drives require planned maintenance.

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45. Important Selection Factors

For a drive of this size, the following information should be available before ordering.

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46. Mechanical Installation Planning

The 800 mm cabinet depth should be considered when planning the installation area.

However, depth alone is not enough.

The complete installation envelope should include:

• Cabinet body
• Doors
• Cable entry
• Cooling airflow
• Front service area
• Maintenance access
• Lifting access
• Electrical clearance

The exact overall height and width should therefore be taken from the specific mechanical configuration.

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47. Weight and Transportation

The user specifically requested the weight in kilograms.

For this model, the safest technical presentation is:

For a large 2070 A floor-standing drive, using an approximate weight without confirming the exact cabinet configuration could result in an incorrect transportation or structural calculation.

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48. Product Advantages Summary

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49. Overall Technical Assessment

The 20G11LD2K0AN0NNNNN is a very-high-power member of the PowerFlex 755 series.

Its most important specifications are:

480 VAC

Three Phase

2070 A

2000 HP Light Duty

1750 HP Normal Duty

1650 HP Heavy Duty

Forced-Air Cooling

MCC-Style Cabinet

800 mm Cabinet Depth

Type 1 Enclosure

IP20 Protection

These specifications place the model firmly in the large industrial drive category.

It is best suited to machinery where motor power is very high and where controlled speed, acceleration, deceleration and process integration are important.

The most suitable applications include large conveyors, mining machinery, large pumps, industrial fans, blowers, bulk-material handling systems, cement and aggregate equipment, heavy manufacturing equipment and other large rotating machines.

Its major advantage over a simple motor starter is the ability to control the motor’s operating speed and torque electronically.

For conveyors, this can provide smoother starting and stopping.

For pumps and fans, it can allow the motor operating point to follow process demand.

For heavy industrial machinery, it can provide more controlled machine operation and easier integration with an automated production system.

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50. Final Specification Table

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Conclusion

The 20G11LD2K0AN0NNNNN is a high-capacity PowerFlex 755 industrial AC drive designed for very large 480 VAC motors.

With a 2070 A current rating and a maximum listed 2000 HP Light-Duty capacity, it is substantially larger than conventional industrial drives used for small and medium motors.

The model is particularly appropriate when a process requires both very high motor power and controlled motor operation.

Its combination of high current capability, variable-speed operation, controlled acceleration and deceleration, industrial automation compatibility, forced-air cooling and large floor-standing construction makes it a strong choice for demanding applications such as mining conveyors, bulk-material systems, large pumping stations, industrial ventilation, blowers and heavy process machinery.

For replacement or new-project selection, the most important checks are the motor nameplate current, voltage, duty rating, overload requirement, braking requirement, cabinet arrangement, cooling conditions, dimensions and exact weight in kg.

The closest high-power comparison models are 20G11LD1K3AN0NNNNN, 20G11LD1K4AN0NNNNN, 20G11LD1K5AN0NNNNN, and 20G11LD1K5JN0NNNNN. Among these, the 20G11LD1K5AN0NNNNN is the closest lower-capacity configuration, while the 20G11LD2K0AN0NNNNN provides the higher 2070 A / 2000 HP class required for very large motor applications.

For mechanical installation, the 800 mm cabinet depth can be used as a key planning dimension, but the final height, width and kg weight should be taken from the exact mechanical configuration rather than estimated.