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Allen-Bradley 20G11BC910JN2NNNNN — Detailed Product Specification, Product Introduction, Applications, Advantages and Related Model Guide

1. Product Overview

The 20G11BC910JN2NNNNN is a high-power PowerFlex 755 AC drive designed for large industrial motor-control applications.

It is a 400 VAC, three-phase, air-cooled variable frequency drive with a nominal output-current rating of 910 A. Its published power ratings are 560 kW Light Duty, 500 kW Normal Duty, and 400 kW Heavy Duty.

The drive is built around a Frame 9 power section and uses an IP20 / Type 1, 600 mm deep MCC-style mechanical arrangement.

Compared with the closely related 20G11BC910AN2NNNNN, this JN2 configuration has a different configuration suffix. The JN2 version uses the newer configuration with an enhanced LCD, full-numeric handheld/local HIM, and CM jumper installed.

This makes the model particularly interesting for applications where a local operator interface is useful rather than relying entirely on a remote PLC or HMI.

The drive is intended for large motors and demanding industrial systems such as large pumps, fans, blowers, conveyors, mining equipment, material-handling systems, cooling systems, cement equipment, and other high-power process machinery.

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2. Brand and Product Series

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3. Main Technical Parameters

The dimensions and weight above refer to the standard large-frame MCC-style arrangement and should be treated as installation-planning values.

Actual dimensions and mass can change when additional cabinets, options, disconnect equipment, mounting arrangements, or other mechanical assemblies are included.

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4. Electrical Rating

The 20G11BC910JN2NNNNN has a nominal output-current capability of 910 A.

This is a very substantial current rating and places the drive in the high-power industrial category.

Its three main duty ratings are:

The correct rating should be selected according to the actual motor current and load profile.

The 560 kW Light Duty value should not automatically be interpreted as meaning that every 560 kW motor can be connected to the drive.

The motor’s nameplate current, starting torque, overload requirements, speed range, acceleration requirements, and operating environment all need to be considered.

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5. 910 A Output Capability

The 910 A output current is one of the defining characteristics of this model.

It allows the drive to control very large industrial motors.

Typical applications include:

• Large centrifugal pumps
• Industrial cooling pumps
• Large ventilation fans
• Process blowers
• Long conveyors
• Mining conveyors
• Material-handling systems
• Large water systems
• Cement-processing machinery
• Mineral-processing equipment
• Large industrial auxiliary machinery

A drive at this current level also requires appropriately designed electrical infrastructure.

The incoming transformer, switchgear, protective devices, busbars, motor cables, grounding system, and cooling system all need to be sized for the complete installation.

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6. Light Duty — 560 kW

The 560 kW Light Duty rating is the highest published power rating for this model.

Light Duty is particularly relevant to variable-torque applications.

Typical examples include:

• Centrifugal pumps
• Cooling pumps
• Large fans
• Ventilation systems
• Blowers
• Water circulation systems

These loads generally have a more favorable torque characteristic than applications such as conveyors or crushers.

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7. Normal Duty — 500 kW

The 500 kW Normal Duty rating provides substantial capacity for general industrial motor applications.

Potential applications include:

• Process pumps
• Industrial fans
• Blowers
• Material-handling machinery
• Production equipment
• Large auxiliary motors
• Industrial cooling equipment

Normal Duty selection should be based on actual motor current rather than relying only on the motor’s kW rating.

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8. Heavy Duty — 400 kW

The 400 kW Heavy Duty rating is intended for applications with greater torque or overload requirements.

Potential applications include:

• Heavy conveyors
• Mining conveyors
• High-inertia machinery
• Material-handling systems
• Process machinery
• Heavy rotating equipment

For these applications, the motor’s acceleration torque and overload requirements are particularly important.

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9. Product Introduction

The 20G11BC910JN2NNNNN is designed to regulate the speed and torque of large AC motors.

A conventional fixed-speed motor receives power at a fixed frequency.

A variable frequency drive changes the electrical conditions supplied to the motor so that motor speed can be adjusted according to the process.

This allows the motor to:

• Start smoothly
• Accelerate gradually
• Run at adjustable speed
• Maintain process conditions
• Reduce mechanical shock
• Stop under controlled conditions
• Communicate operating information
• Respond to automation commands

For large motors, these functions can provide considerable advantages over direct-on-line starting.

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10. PowerFlex 755 Series

The PowerFlex 755 is a high-performance industrial drive platform intended for demanding motor-control applications.

The series supports functions associated with:

• Speed control
• Torque control
• Process control
• PID control
• Industrial networking
• Diagnostics
• Feedback
• Safety functions
• I/O expansion
• Application-specific control

The architecture is therefore suitable for both conventional variable-speed motors and more advanced automated industrial equipment.

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11. Embedded EtherNet/IP

The 20G11BC910JN2NNNNN includes embedded EtherNet/IP communication.

This allows the drive to exchange information with a PLC, HMI, SCADA system, or other industrial automation equipment.

Typical information includes:

This is particularly valuable in large facilities where several high-power drives are controlled from a centralized system.

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12. Enhanced LCD and Full-Numeric HIM

One of the notable features of the JN2 configuration is the enhanced LCD, full-numeric handheld/local HIM.

HIM means Human Interface Module.

The local interface can be useful for:

• Parameter configuration
• Local operation
• Speed adjustment
• Fault identification
• Status monitoring
• Commissioning
• Maintenance
• Troubleshooting

This is a practical difference compared with configurations that are supplied without a local HIM.

For commissioning engineers, having a local display and keypad can make initial setup considerably easier.

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13. Local Control Capability

The local HIM provides a convenient interface when technicians need to work directly at the drive.

During commissioning, personnel can use the local interface to inspect:

• Drive status
• Motor speed
• Output frequency
• Current
• Voltage
• Fault conditions
• Warning conditions
• Parameter settings

This can reduce the need to connect a separate programming device for every basic adjustment.

For large industrial installations, this can be especially useful during startup and maintenance.

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14. CM Jumper Installed

The JN2 configuration uses the CM jumper installed.

This is an important difference compared with certain AN configurations.

The CM jumper influences the common-mode and grounding behavior of the drive.

It should therefore be considered when replacing an existing drive.

Two models may have the same:

• Voltage
• Current
• Frame
• kW rating

yet still have different configuration details.

For replacement applications, the complete catalog number should be checked instead of selecting a model only from the electrical rating.

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15. AC Input With Precharge

The drive uses an AC input with precharge.

High-power drives contain significant DC-link capacitance.

When power is first applied, the DC-link capacitors need to charge.

The precharge circuit helps control this initial charging process and limits excessive inrush current.

This is especially important in a drive with a 910 A output rating.

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16. DC Terminals

The model includes DC terminals.

The DC bus forms an important part of the drive’s power-conversion system.

DC terminals may also be useful in suitable DC-bus applications.

Any external DC-bus arrangement must be evaluated carefully for voltage compatibility, protection, grounding, fault behavior, and energy management.

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17. Filtering

The model is configured with filtering.

Modern power electronics use high-frequency switching.

This switching can create electromagnetic interference.

Filtering helps manage these electrical disturbances.

However, proper EMC performance also depends on:

• Grounding
• Bonding
• Shielding
• Motor-cable construction
• Cable routing
• Cable length
• Cabinet layout
• Network-cable routing

The filter should therefore be viewed as part of the overall EMC design.

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18. Dynamic Braking

The configuration is listed with no dynamic braking.

There is no integrated dynamic-braking transistor in this configuration.

This matters when the connected machine has substantial rotating inertia.

During deceleration, a motor can return energy to the drive’s DC bus.

If the machine must stop very quickly, the regenerated energy can raise DC-bus voltage.

Depending on the application, the designer may need to consider:

• External dynamic braking
• Regenerative braking
• Longer deceleration times
• Mechanical braking
• Other energy-dissipation methods

This is particularly important for large conveyors, high-inertia fans, and heavy rotating machinery.

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19. Mechanical Parameters

The drive uses a Frame 9, IP20 / Type 1, 600 mm deep MCC-style construction.

The 2453 × 1200 × 600 mm dimensions are useful for planning the standard Frame 9 MCC-style installation.

However, the final physical assembly should always be checked before cabinet fabrication or transportation planning.

Additional equipment or mechanical options can change the overall footprint and weight.

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20. Size and Weight Considerations

This is not a compact machine-mounted VFD.

The approximate 1246 kg equipment mass is a major installation consideration.

The installation floor should be evaluated for:

• Static loading
• Dynamic loading
• Transportation loads
• Lifting arrangements
• Equipment access
• Maintenance access

A complete installation plan should also consider the dimensions of the electrical room door, transportation route, lifting equipment, and final mounting position.

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21. Product Applications

21.1 Large Pumping Systems

Large pumps are one of the strongest application areas for this drive.

Possible applications include:

• Water treatment
• Industrial water circulation
• Cooling-water systems
• Process-water systems
• Wastewater
• Mining dewatering
• Utility pumping
• Large irrigation systems

Variable-speed control allows the pump to operate according to actual process requirements.

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22. Process Pumps

Process pumps often need stable pressure or flow.

The drive can change motor speed according to a feedback signal.

This can provide:

• Pressure control
• Flow control
• Smooth starting
• Reduced mechanical stress
• Automatic process adjustment
• Remote monitoring

The PID function is especially useful for this type of application.

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23. Large Industrial Fans

Large fans may require hundreds of kilowatts.

Typical applications include:

• Furnace ventilation
• Exhaust systems
• Cooling systems
• Combustion-air systems
• Process ventilation
• Industrial air handling

The drive can adjust fan speed according to process demand.

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24. Large Blowers

Large blowers can also benefit from variable-speed control.

Potential control variables include:

• Air pressure
• Airflow
• Process demand
• Production rate
• Temperature

The PID function can be used to maintain a target pressure or other process variable.

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25. Conveyor Systems

Large conveyors can have high inertia and substantial mechanical loads.

The drive can provide controlled acceleration and deceleration.

Potential benefits include:

• Smoother startup
• Reduced belt stress
• Reduced gearbox stress
• Reduced coupling stress
• Reduced shaft stress
• Better material flow
• Adjustable conveyor speed

The actual suitability of the drive depends on the motor current, torque requirements, acceleration profile, and duty cycle.

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26. Mining Applications

The high current capacity makes the drive suitable for many large mining applications.

Potential uses include:

• Ore conveyors
• Bulk-material conveyors
• Dewatering pumps
• Large ventilation fans
• Material-transfer equipment
• Mineral-processing systems

The embedded communication capability can also be used for centralized equipment monitoring.

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27. Cement Applications

Large cement facilities use high-power motors throughout their processes.

Possible applications include:

• Process fans
• Cooling fans
• Large pumps
• Conveyors
• Material handling
• Ventilation
• Process machinery

Variable-speed operation can help match equipment output to production requirements.

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28. Mineral Processing

Mineral-processing facilities often use large motors for:

• Pumping
• Conveying
• Ventilation
• Blowers
• Material handling
• Process machinery

The drive’s 910 A capacity makes it appropriate for large motor installations when the motor falls within the applicable duty rating.

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29. Heavy Manufacturing

Potential heavy-industry applications include:

• Large cooling systems
• Process fans
• Pumps
• Material handling
• Large rotating equipment
• Auxiliary machinery

The local HIM can be especially useful during maintenance and commissioning in these environments.

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30. Product Advantages

30.1 High 910 A Current Capacity

The 910 A output rating gives the drive enough electrical capacity for large industrial motors.

This is the primary reason to consider this model instead of smaller drive platforms.

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30.2 560 kW Light Duty Rating

The 560 kW Light Duty rating makes it well suited to large variable-torque applications.

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30.3 500 kW Normal Duty Rating

The 500 kW Normal Duty rating provides substantial capacity for general industrial motor applications.

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30.4 400 kW Heavy Duty Rating

The 400 kW Heavy Duty rating allows the drive to handle applications with more demanding torque characteristics.

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30.5 Embedded EtherNet/IP

The integrated communication capability makes the drive easy to incorporate into an industrial automation network.

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30.6 Enhanced LCD and Local HIM

The JN2 configuration provides a practical local interface.

This can be particularly valuable during:

• Commissioning
• Troubleshooting
• Preventive maintenance
• Parameter adjustment
• Fault diagnosis

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30.7 PID Process Control

PID functionality makes the drive useful for applications where the motor must automatically respond to a process variable.

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30.8 MCC-Style Construction

The 600 mm deep MCC-style construction is intended for large industrial electrical installations.

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30.9 Forced-Air Cooling

Forced-air cooling provides a practical thermal-management approach for this high-power drive.

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30.10 Flexible Industrial Architecture

The PowerFlex 755 platform supports a broad range of industrial motor-control functions.

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31. Five Recommended Models From the Same Series

The following five models are closely related PowerFlex 755 models and are useful for comparison.

These models form a useful progression from approximately 1,040 A to 2,150 A.

The 20G11BC910JN2NNNNN sits below these models in current capacity and is therefore a good option when the motor requires approximately 910 A or less under the applicable duty conditions.

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32. Same-Series Comparison

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33. Closest Alternative Models

For someone selecting a replacement or higher-capacity drive, several models deserve particular attention.

20G11BC1K0JN2NNNNN

This is a logical step upward from the 910 A model.

It increases current capacity to approximately 1,040 A and provides approximately 630 kW Light Duty, 560 kW Normal Duty, and 500 kW Heavy Duty capability.

It can be useful when the motor current is slightly above the 910 A range.

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20G11BC1K4JN2NNNNN

This model provides a much larger current margin at approximately 1,465 A.

It is more appropriate for substantially larger motors or applications requiring additional capacity.

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20G11BC1K5JN2NNNNN

The approximately 1,480 A rating makes this model suitable for very large industrial motors.

Its Light Duty rating reaches approximately 900 kW.

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20G11BC1K6JN2NNNNN

This model moves into the Frame 10 class and provides approximately 1,590 A.

Its Light Duty rating is approximately 1,000 kW.

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20G11BC2K1JN2NNNNN

This is a substantially larger member of the same family.

It provides approximately 2,150 A, with approximately 1,400 kW Light Duty, 1,250 kW Normal Duty, and 1,000 kW Heavy Duty capability.

It is suitable for very large industrial motor systems.

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34. Five Same-Brand Popular / Related Models

For a broader product comparison, the following models represent useful products from the same brand across different drive sizes and applications.

These products cover very different power ranges.

The 20G11BC910JN2NNNNN is intended for the high-power end of industrial motor control, whereas compact PowerFlex models are designed for smaller motors and machine applications.

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35. Application Comparison

The model is most effective when the application genuinely requires its large current capacity.

Using a 910 A industrial drive for a small motor would generally be unnecessary and economically inefficient.

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36. Pump-System Advantages

For a centrifugal pump, variable-speed operation can be extremely useful.

Instead of maintaining a fixed motor speed and controlling flow mainly through throttling, the drive can change motor speed.

Potential benefits include:

• Better pressure control
• Better flow control
• Reduced throttling
• Smoother starting
• Reduced mechanical stress
• Improved process stability
• Potential energy savings

The PID function can automatically adjust motor speed to maintain a desired pressure or flow.

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37. Fan-System Advantages

Large fans often operate continuously.

A variable frequency drive allows fan speed to follow actual demand.

Potential advantages include:

• Improved airflow control
• Reduced unnecessary operation
• Smooth starting
• Reduced mechanical shock
• Better process response
• Centralized monitoring

This can be particularly valuable in large industrial ventilation systems.

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38. Conveyor-System Advantages

For a large conveyor, the drive’s controlled acceleration is often as important as speed control.

A gradual acceleration ramp can reduce stress on:

• Conveyor belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Pulleys

It can also improve material flow during startup.

The application should nevertheless be evaluated carefully because a conveyor may have high starting torque and substantial inertia.

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39. Process PID Applications

The integrated PID capability can be used in process applications.

A typical system can operate as:

Pressure Sensor → PID Control → Drive → Motor → Pump → Process

If pressure falls below the setpoint, the drive can increase motor speed.

If pressure rises above the setpoint, the drive can reduce motor speed.

The same principle can be adapted to:

• Flow control
• Air-pressure control
• Vacuum systems
• Process regulation
• Other feedback-controlled applications

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40. Energy Management

Variable-speed drives can provide significant energy-management benefits in suitable applications.

This is particularly true for centrifugal pumps and fans.

The important point is that the drive allows the motor to operate at the speed actually required by the process.

Potential benefits include:

• Reduced unnecessary motor operation
• Reduced throttling
• Better process matching
• Lower mechanical stress
• Better operating flexibility

Actual energy savings depend heavily on the application and operating profile.

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41. Cooling and Thermal Management

The 20G11BC910JN2NNNNN uses forced-air cooling.

A drive with this level of power capacity can generate considerable heat.

The installation should therefore provide suitable:

• Airflow
• Ventilation
• Heat removal
• Service access
• Cabinet ventilation
• Cooling-fan maintenance

Dust accumulation should be controlled because blocked airflow can reduce cooling effectiveness.

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42. Environmental Parameters

The IP20 / Type 1 construction should be installed in a suitable protected electrical environment.

It is not intended to be treated as a weatherproof outdoor enclosure.

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43. Installation Requirements

The physical size of this drive needs to be considered early in the project.

Approximate standard dimensions are:

2453 mm high × 1200 mm wide × 600 mm deep

The installation area should also provide additional space for:

• Incoming cables
• Motor cables
• Cable bending radius
• Control wiring
• Network cables
• Ventilation
• Maintenance
• Inspection
• Cooling airflow
• Component replacement

The drive should not simply be placed into a 600 mm deep space without considering cable access and ventilation requirements.

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44. Transportation and Weight

The approximate equipment weight is 1246 kg for the standard Frame 9 MCC-style arrangement.

This is a substantial mass and should be included in the mechanical design.

The 1246 kg figure should be treated as an approximate standard configuration value.

If additional cabinets or options are included, the final equipment weight can be higher.

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45. Maintenance Considerations

Large industrial drives should be included in a preventive-maintenance program.

Important inspection areas include:

• Cooling fans
• Air passages
• Electrical terminals
• Grounding connections
• Cabinet cleanliness
• Network connections
• Fault history
• Warning history
• Parameter settings
• Environmental conditions

The local HIM is particularly useful during maintenance because technicians can inspect drive status directly at the equipment.

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46. Complete Parameter Table

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47. Key Advantages Summary

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48. 20G11BC910JN2NNNNN vs. 20G11BC910AN2NNNNN

Because these two models are closely related, the differences are worth highlighting.

The key point is that the JN2 model is not simply a cosmetic variation.

The JN configuration belongs to the newer configuration structure and includes the enhanced local interface.

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49. Recommended Selection Logic

If the motor current is close to 910 A, the 20G11BC910JN2NNNNN is an appropriate high-power model to evaluate.

If the motor requires slightly more current, the 20G11BC1K0JN2NNNNN provides additional margin.

For much larger motors, the 1K4, 1K5, 1K6, and 2K1 versions provide progressively higher current capability.

For pump and fan applications, the Light Duty rating is particularly important.

For conveyors and other high-torque equipment, Heavy Duty requirements should receive more attention.

For applications requiring rapid deceleration, braking requirements should be analyzed separately because this configuration does not include an integrated dynamic-braking transistor.

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50. Final Product Assessment

The 20G11BC910JN2NNNNN is a high-power PowerFlex 755 industrial AC drive intended for large motor-control applications.

Its 910 A output current, combined with 560 kW Light Duty, 500 kW Normal Duty, and 400 kW Heavy Duty ratings, gives it substantial capacity for large industrial motors.

The 400 VAC, three-phase input configuration makes it suitable for large industrial electrical systems.

The Frame 9, 600 mm deep MCC-style construction is intended for large electrical-room installations rather than compact machine-mounted applications.

One of the most useful characteristics of this particular JN2 configuration is its enhanced LCD and full-numeric handheld/local HIM.

That makes the drive particularly convenient during commissioning, maintenance, parameter adjustment, and troubleshooting.

The embedded EtherNet/IP interface allows the drive to integrate into a larger automation system, while PID control provides additional value for pressure, flow, airflow, and other process-control applications.

The model is particularly well suited to:

• Large centrifugal pumps
• Process pumps
• Cooling-water systems
• Large industrial fans
• Blowers
• Mining conveyors
• Material-handling systems
• Cement equipment
• Mineral-processing equipment
• Industrial ventilation
• Large rotating machinery

The approximate physical size of 2453 × 1200 × 600 mm and approximate weight of 1246 kg should be taken seriously during project planning.

This is a large industrial electrical assembly, so floor loading, lifting, transportation, cable access, ventilation, and maintenance space should all be considered before installation.

Overall, the 20G11BC910JN2NNNNN can be described as a 910 A, 400 VAC, Frame 9, air-cooled PowerFlex 755 high-power AC drive with embedded EtherNet/IP, local enhanced LCD/HIM, AC precharge, DC terminals, filtering, and CM jumper installed.

Its combination of high current capacity, large motor power capability, local operator interface, industrial networking, PID functionality, and MCC-style construction makes it a strong choice for large-scale industrial motor-control systems.