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20G11JC1K2JN0NNNNN — Detailed Product Overview, Technical Parameters, Applications, Advantages and Related Models

Below is a structured English technical description of 20G11JC1K2JN0NNNNN.

I have kept the wording technical and straightforward, with blank lines between sections as requested. The model-specific electrical information is stated directly, while dimensions and weight are separated into confirmed configuration information and engineering-reference information where appropriate.

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1. Product Identification

The key electrical difference between this model and several closely related configurations is its 1,175 A output rating, together with 800 kW Light-Duty, 710 kW Normal-Duty and 560 kW Heavy-Duty ratings.

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2. Brand

The product brand is Allen-Bradley.

For identification purposes, the important product hierarchy is:

Allen-Bradley → PowerFlex → PowerFlex 755 → 20G11JC1K2JN0NNNNN

The PowerFlex 755 family is intended for larger industrial motor-control applications where a compact general-purpose drive would not provide sufficient capacity or control flexibility.

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3. Product Series

PowerFlex 755

The PowerFlex 755 series is a high-performance industrial AC drive platform.

It is designed for applications that require more than basic motor speed adjustment.

Typical requirements include:

• High motor power.
• High output current.
• Variable-speed operation.
• Adjustable acceleration and deceleration.
• Industrial communication.
• Process integration.
• Motor protection.
• Drive diagnostics.
• Flexible control functions.
• Large machine integration.

The series covers a broad range of motor-control applications, from relatively moderate industrial machinery to very large motors.

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4. Product Introduction

The 20G11JC1K2JN0NNNNN is a large-frame, air-cooled AC variable frequency drive designed for controlling high-power three-phase AC motors.

The drive receives electrical power from a fixed-frequency AC supply and produces controlled AC output for the motor.

The output frequency and voltage can be adjusted according to the operating requirements of the motor and machine.

This means that the motor does not have to operate continuously at a single fixed speed.

For example, a large pump can reduce speed when less flow is required.

A large fan can change speed according to the required airflow.

A conveyor can accelerate progressively instead of applying full motor speed immediately.

A heavy industrial machine can receive its speed command from an automation system.

This type of control is particularly useful in continuous-process industries where motor operation needs to follow changing production requirements.

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5. Core Technical Parameters

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6. Output Current

The rated output current of this model is:

1,175 A

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

The current rating is especially important when selecting a drive for an existing motor.

The motor’s full-load current should be compared directly with the drive rating.

Power alone should not be used as the only selection criterion.

Motor voltage, efficiency, power factor, duty cycle, overload requirement and operating temperature can all influence the actual current requirement.

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7. Power Ratings

The model has three important application-duty ratings.

These three ratings are useful because industrial loads do not all behave in the same way.

A lightly loaded fan may have a different requirement from a heavily loaded conveyor.

A pump may operate relatively smoothly, while a crusher or other high-torque machine may require more overload capability.

Therefore, selecting the drive according to the correct duty rating is important.

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8. Light-Duty Rating — 800 kW

The Light-Duty rating is:

800 kW

This rating is appropriate for applications where the load profile and overload requirements fall within the Light-Duty operating characteristics of the drive.

Large fans and certain pump applications can often have relatively smooth load profiles.

However, the final selection should always be based on the actual motor nameplate and application conditions.

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9. Normal-Duty Rating — 710 kW

The Normal-Duty rating is:

710 kW

This represents a lower power level than the Light-Duty rating because the drive is being applied to a more demanding duty profile.

For many industrial processes, Normal Duty provides a useful reference point when determining drive size.

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10. Heavy-Duty Rating — 560 kW

The Heavy-Duty rating is:

560 kW

Heavy-Duty applications generally involve greater overload requirements or more demanding operating conditions.

Applications with significant starting torque, high inertia or repeated loading should be evaluated using the appropriate Heavy-Duty rating.

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11. Voltage and Phase

The 400 VAC class makes this configuration particularly relevant to industrial low-voltage motor systems using approximately 400 V three-phase supplies.

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12. Input Configuration

The model is configured for:

AC Input with DC Terminals

This is a characteristic of the large PowerFlex 755 packaged-drive architecture.

The DC terminals can be relevant in systems where the DC bus needs to be considered as part of the overall drive arrangement.

The exact electrical installation should be designed according to the applicable drive configuration and the requirements of the motor system.

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13. Dynamic Braking

The model configuration specifies:

Dynamic Braking: None

This is an important point when considering applications involving large rotating masses.

If the motor must decelerate a high-inertia load quickly, the resulting energy must be considered.

Applications involving:

• Heavy conveyors.
• Large rotating fans.
• Centrifuges.
• High-inertia machinery.
• Rapid stopping.

may require a specific braking strategy.

The absence of an integrated dynamic-braking configuration means the braking requirements should be evaluated separately during system design.

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14. Filtering and CM Jumper

The model is configured with:

Filtered

and:

CM Jumper Installed

These features are relevant to the electrical behavior of the drive and the motor system.

The filtering configuration can help address electromagnetic compatibility considerations.

The CM-jumper configuration relates to the common-mode behavior of the drive.

These options can be important in installations involving:

• Long motor cables.
• Sensitive control equipment.
• Multiple drives.
• Industrial communication systems.
• Complex grounding arrangements.

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15. Enclosure

The model is specified as:

Type 12 / IP54

This provides protection appropriate for many industrial indoor installations.

It is intended to provide protection against dust and incidental moisture.

However, IP54 should not be interpreted as protection against continuous water exposure.

The installation environment should therefore be evaluated for:

• Dust.
• Humidity.
• Condensation.
• Chemical contamination.
• Temperature.
• Airflow.
• Water exposure.

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16. Cabinet Construction

The model uses an:

800 mm Deep MCC Style Cabinet

This is a substantial industrial cabinet.

It is very different from the compact enclosure used for smaller drives.

The cabinet depth is:

800 mm

The equipment should therefore be planned as a floor-mounted industrial electrical cabinet.

Adequate access should be provided for:

• Power cables.
• Control wiring.
• Network cables.
• Cooling airflow.
• Maintenance.
• Cabinet doors.
• Component replacement.

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17. Dimensions

The known cabinet-depth specification is:

800 mm

The exact overall height and width should be treated as configuration-dependent because large packaged drives can use different cabinet arrangements.

For structural engineering, transportation and installation, the actual equipment-specific mechanical drawing should be used.

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18. Weight

The equipment belongs to the very large Frame 9 packaged-drive category.

For preliminary planning, a reasonable engineering reference is:

Weight: approximately 1,200–1,300 kg

This corresponds to approximately:

1.2–1.3 metric tonnes

The actual shipping weight and installed weight can vary according to cabinet construction and selected options.

For lifting and foundation calculations, the actual equipment nameplate or mechanical documentation should be used rather than the approximate value above.

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19. Cooling System

The drive uses:

Forced-Air Cooling

A high-current drive produces considerable heat during operation.

The cooling system therefore plays an important role in maintaining reliable operation.

The installation should maintain adequate airflow around the cabinet.

Important maintenance areas include:

• Cooling fans.
• Air intake.
• Air exhaust.
• Internal airflow.
• Cabinet cleanliness.
• Ambient temperature.
• Fan bearings.
• Dust accumulation.

A blocked airflow path can raise internal temperature and reduce component life.

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20. Communication

The model includes:

Embedded EtherNet/IP

This allows the drive to be integrated into an industrial automation network.

Typical information exchanged with a controller can include:

• Start command.
• Stop command.
• Speed reference.
• Frequency.
• Current.
• Motor speed.
• Drive status.
• Warning status.
• Fault status.
• Diagnostic information.

This is particularly useful in automated production lines and process plants.

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21. Operator Interface

This particular catalog configuration is:

Blank / No HIM

This means the configuration does not include the standard local human-interface module.

That does not prevent the drive from being controlled through an automation system.

For applications requiring frequent local adjustment or local troubleshooting, an appropriate operator interface may need to be considered separately.

The absence of a local HIM can also be useful in installations where the drive is primarily controlled remotely through the plant automation system.

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22. Product Applications

Large Pump Systems

The drive is well suited to large industrial pump systems.

Examples include:

• Cooling-water pumps.
• Process-water pumps.
• Water-transfer pumps.
• Wastewater pumps.
• Industrial circulation pumps.
• Mining pumps.
• Large utility pumps.

Variable-speed operation allows the motor to follow changing process demand.

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23. Large Fan Systems

Large fans can consume hundreds of kilowatts.

Typical applications include:

• Industrial ventilation.
• Furnace exhaust.
• Combustion-air systems.
• Dust collection.
• Process ventilation.
• Mine ventilation.
• Cooling systems.

The drive can adjust the fan speed according to airflow requirements.

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24. Large Blower Systems

The drive is suitable for high-power blower applications.

Examples include:

• Process-air blowers.
• Aeration blowers.
• Pneumatic conveying.
• Industrial air systems.
• Combustion-air blowers.
• Process-gas circulation.

The ability to adjust motor speed can provide better process control than fixed-speed operation.

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25. Heavy Conveyor Systems

Large conveyors can have significant inertia and mechanical load.

The drive can provide controlled acceleration and speed adjustment.

Potential applications include:

• Mining conveyors.
• Bulk-material conveyors.
• Cement conveyors.
• Aggregate conveyors.
• Port conveyors.
• Heavy production conveyors.

Controlled acceleration can help reduce sudden mechanical loading.

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26. Mining Industry

The drive is suitable for large rotating equipment used in mining.

Potential applications include:

• Ore conveyors.
• Mine ventilation fans.
• Water pumps.
• Material-handling systems.
• Processing equipment.
• Large auxiliary motors.

High current capacity is particularly useful where large motors are used continuously.

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27. Cement Industry

Typical applications include:

• Large process fans.
• Conveyors.
• Dust-extraction systems.
• Pumps.
• Blowers.
• Material-handling equipment.

The drive can be integrated into the broader plant automation system.

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28. Metals Industry

Potential applications include:

• Cooling-water pumps.
• Process fans.
• Large conveyors.
• Blowers.
• Material-handling machinery.
• Production-process motors.

The drive is appropriate where the motor must be continuously controlled according to process conditions.

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29. Water and Wastewater

Large water systems can require substantial motor power.

Typical applications include:

• Water-transfer pumps.
• Intake pumps.
• Distribution pumps.
• Wastewater pumps.
• Aeration blowers.
• Sludge-handling systems.

The variable-speed capability can be used to adjust pump or blower output according to demand.

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30. Main Product Advantages

30.1 Very High Current Capacity

The 1,175 A output rating is the most important characteristic of this model.

It allows the drive to control very large industrial motors.

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30.2 High Power Capability

The drive reaches:

800 kW Light Duty

This places it firmly in the high-power industrial-drive category.

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30.3 Flexible Duty Ratings

The three ratings provide a practical way to match the drive to different load conditions.

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30.4 Variable-Speed Control

The drive allows the motor to operate at different speeds.

This can improve process control and reduce the need for mechanical flow or speed-control methods.

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30.5 Controlled Acceleration

Large motors and machines can be started progressively.

This can reduce mechanical shock.

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30.6 Industrial Network Integration

Embedded EtherNet/IP allows the drive to become part of an automated control system.

This can reduce the need for separate hardwired control arrangements for every operating parameter.

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30.7 Large-Motor Compatibility

The 1,175 A capacity makes this model suitable for large motors that exceed the practical range of smaller drives.

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30.8 Industrial Cabinet Construction

The large MCC-style cabinet provides a practical arrangement for high-power industrial equipment.

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30.9 Maintenance Diagnostics

Drive status and fault information can be accessed through the control architecture.

This can make troubleshooting easier in an automated plant.

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31. Application Advantages

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32. Installation Requirements

The physical size of the drive should be considered before installation.

The installation area should provide sufficient space for:

• Cabinet installation.
• Cable entry.
• Cable bending radius.
• Airflow.
• Door operation.
• Maintenance.
• Inspection.
• Component replacement.

The floor should be capable of supporting a large industrial cabinet weighing approximately 1.2–1.3 tonnes.

Transportation access should also be evaluated before the equipment is delivered.

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33. Maintenance Requirements

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34. Five Same-Series or Closely Related Models

The following models are useful comparison candidates within the PowerFlex 755 high-power range.

The models above represent different capacity levels and configurations.

They should not automatically be regarded as direct replacements because differences in current rating, frame, cabinet arrangement and option configuration can affect compatibility.

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35. Related Model 1 — 20G11JC1K2AN0NNNNN

This is a particularly relevant comparison model.

This is especially useful when comparing different option configurations within the same electrical capacity.

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36. Related Model 2 — 20G11JC1K2AN4NNNNN

This is a close configuration comparison for the subject model.

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37. Related Model 3 — 20G11JC1K1JN4NNNNN

This model belongs to a slightly lower current/power class.

This can be considered when the motor current is below the 1,175 A class and the lower power rating is sufficient.

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38. Related Model 4 — 20G11JC910JN0NNNNN

This is a smaller Frame 9 configuration.

This is a practical comparison where the motor requirement is lower than the 1,175 A capacity.

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39. Related Model 5 — 20G11JC2K1JN0NNNNN

This model moves to a substantially higher capacity.

This model is relevant when the motor power requirement exceeds the practical capacity of the 1,175 A Frame 9 configuration.

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40. Five Popular Models from the Same Brand

The following models cover different application sizes and are useful for comparison.

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41. Comparison of the Five Popular Models

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42. Application Selection Guide

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43. Electrical Selection Checklist

Before selecting this drive for an actual motor, the following should be checked.

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44. Maintenance and Reliability Advantages

The drive’s industrial architecture provides a number of practical maintenance benefits.

A large motor-control system can be monitored through the automation network.

Maintenance personnel can review operating information and identify abnormal conditions before they become major failures.

Useful information may include:

• Motor current.
• Output frequency.
• Drive status.
• Fault condition.
• Warning condition.
• Communication condition.
• Operating temperature.
• Load behavior.

This is particularly useful in continuous-process industries where unexpected motor downtime can have a significant effect on production.

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45. Why the 1,175 A Rating Matters

The 1,175 A rating is more than just a numerical specification.

It determines the scale of motor system that the drive can serve.

A small drive may be perfectly adequate for a 5 kW motor but completely unsuitable for a several-hundred-kilowatt industrial motor.

The 20G11JC1K2JN0NNNNN is intended for the opposite end of the application spectrum.

It is designed around large motors where:

• Motor current is very high.
• Mechanical inertia may be significant.
• Continuous operation is common.
• Process control is important.
• Automation integration is required.
• Cabinet construction must be industrial-grade.

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46. Overall Product Advantages

The principal advantages of 20G11JC1K2JN0NNNNN can be summarized as follows.

High Current Capacity

The 1,175 A output rating supports very large AC motors.

High Power

The Light-Duty rating reaches 800 kW.

Multiple Duty Ratings

The 800/710/560 kW LD/ND/HD ratings provide flexibility for different load profiles.

Variable-Speed Operation

Motor speed can be adjusted according to process requirements.

Controlled Acceleration

Large machinery can be started progressively.

Industrial Communication

Embedded EtherNet/IP supports integration with automated control systems.

Large Cabinet Construction

The Frame 9 MCC-style cabinet is designed for high-power industrial installations.

Forced-Air Cooling

The cooling system is designed for continuous operation at high power levels.

Industrial Protection

The Type 12/IP54 configuration provides useful protection for industrial environments.

Diagnostic Capability

Drive operating information and fault conditions can be monitored.

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47. Final Technical Summary

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48. Conclusion

20G11JC1K2JN0NNNNN is a high-power PowerFlex 755 variable frequency drive designed for large industrial AC motor applications.

Its 1,175 A output rating and 800 kW Light-Duty rating place it firmly in the high-capacity industrial-drive category.

The 710 kW Normal-Duty and 560 kW Heavy-Duty ratings provide additional flexibility when matching the drive to different load characteristics.

The 400 VAC, three-phase configuration, Frame 9 construction, forced-air cooling, 800 mm deep MCC-style cabinet, Type 12/IP54 enclosure, filtered configuration, CM jumper installed, and embedded EtherNet/IP make it particularly suitable for large automated industrial installations.

The model is a strong candidate for large pumps, industrial fans, blowers, conveyors, mining machinery, cement equipment, water-treatment equipment, metals-processing machinery and other large rotating equipment.

One notable characteristic of this particular configuration is the Blank / No HIM arrangement. This makes it particularly appropriate for systems where the drive is managed primarily through an industrial control network rather than through a permanently installed local keypad.

The approximate 1,200–1,300 kg equipment weight also needs to be considered carefully. This is not a compact wall-mounted inverter. It is a large floor-mounted industrial cabinet requiring appropriate transportation, lifting, structural support, ventilation and maintenance access.

For replacement or equivalent selection, the closest candidates should be compared using output current, LD/ND/HD rating, frame size, voltage, input configuration, braking configuration, filtering, communication, cabinet dimensions and weight, rather than comparing model numbers alone.