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20G11GC043JA0NNNNN — PowerFlex 755 AC Drive

Detailed Technical Parameters, Product Introduction, Applications, Advantages, Series Information and Model Recommendations

1. Product Overview

The 20G11GC043JA0NNNNN is a high-performance industrial AC drive designed for variable-speed motor control in demanding industrial equipment.

It belongs to the PowerFlex 755 family and the broader PowerFlex 750-Series. The drive is intended for applications where reliable speed regulation, controlled acceleration and deceleration, torque control, industrial networking and flexible system integration are important.

The model is rated for a 400 VAC three-phase power supply, with a 43 A normal-duty output rating. Its normal-duty power rating is 22 kW, while its heavy-duty rating is 18.5 kW.

The unit uses a Frame 3 construction, forced-air cooling and an IP54 / NEMA Type 12 enclosure configuration. It also includes an integrated EtherNet/IP communication interface, a dynamic braking transistor and EMC filtering.

This combination makes the 20G11GC043JA0NNNNN suitable for medium-power industrial machinery rather than being limited to simple speed-control applications.

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2. Brand and Product Series

The complete catalog number is important because the individual sections of the model number identify a particular configuration. Therefore, 20G11GC043JA0NNNNN should not be treated as simply a generic 22 kW inverter.

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3. Detailed Technical Parameters

3.1 Electrical Parameters

The distinction between normal-duty and heavy-duty operation is particularly important.

Under normal-duty conditions, the drive is rated at 22 kW / 43 A.

Under heavy-duty conditions, the applicable rating is 18.5 kW / 37 A.

This means the drive should not automatically be selected for an 18.5 kW or 22 kW motor without first determining the motor current, overload requirements, acceleration profile and actual mechanical load.

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4. Mechanical Parameters

For cabinet planning, the nominal drive-body dimensions are approximately 515 mm high × 260 mm wide × 212 mm deep, with a weight of approximately 12 kg.

The installation space should not be limited to the physical body of the drive. Additional clearance should be provided for ventilation, cable routing, terminal access, maintenance and heat dissipation.

Depending on the mechanical drawing convention used for a particular installation, overall mounting dimensions can be somewhat greater than the basic drive-body dimensions. Therefore, the actual cabinet drawing should always allow additional installation clearance.

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5. Environmental Parameters

The IP54/NEMA Type 12 configuration is particularly useful for industrial cabinets and enclosed machinery where dust and incidental moisture may be present.

It should not, however, be interpreted as unrestricted protection against outdoor weather, high-pressure water cleaning or aggressive chemical environments.

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6. Product Introduction

The PowerFlex 755 is positioned as a high-performance industrial AC drive platform for applications requiring more than basic motor speed adjustment.

The 20G11GC043JA0NNNNN represents a medium-power configuration within this platform.

Its 43 A normal-duty rating provides sufficient capacity for many 22 kW-class industrial motors, while the 37 A heavy-duty rating allows the same drive to be applied to suitably sized applications with more demanding overload characteristics.

The drive is particularly useful when the motor needs controlled acceleration, controlled deceleration, adjustable speed, stable operation under changing loads and communication with an automation system.

The integrated EtherNet/IP interface also allows the drive to participate in a networked control architecture.

For example, a PLC can provide a speed reference and operating command to the drive while the drive returns motor speed, current, status, alarm and fault information.

This makes the drive suitable for modern production equipment in which motor control is closely integrated with the overall machine-control system.

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7. Main Product Features

7.1 43 A Output Capacity

The 43 A normal-duty output rating is one of the defining specifications of this model.

It provides a useful margin over smaller PowerFlex 755 configurations and makes the drive suitable for medium-power motors.

When selecting the drive, motor rated current should be compared directly with the applicable drive output-current rating.

Motor kW alone should not be used as the only selection criterion.

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7.2 22 kW Normal-Duty Capacity

The drive provides a 22 kW normal-duty rating.

This is particularly suitable for applications where the motor operates under relatively conventional load conditions.

Examples include:

• Pumps.
• Fans.
• Conveyors.
• Process machinery.
• Material-handling equipment.
• General production machinery.
• Rotating machinery.

The actual suitability depends on the motor nameplate current and application duty.

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7.3 18.5 kW Heavy-Duty Capacity

The drive provides an 18.5 kW heavy-duty rating.

Heavy-duty applications generally involve greater overload requirements than normal-duty applications.

Examples may include equipment with:

• High starting torque.
• Frequent acceleration.
• Frequent deceleration.
• High mechanical inertia.
• Rapid production cycles.
• Significant load fluctuations.

For these applications, the heavy-duty rating should be used when sizing the drive.

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8. EtherNet/IP Communication

Embedded EtherNet/IP is one of the most useful features of the 20G11GC043JA0NNNNN.

A typical automation arrangement can be represented as:

PLC → EtherNet/IP → 20G11GC043JA0NNNNN → Motor

The drive can exchange control and monitoring information with the automation system.

Typical information includes:

This communication capability is especially useful in systems with multiple drives.

Instead of having every drive operate independently, the drives can become part of a coordinated machine-control system.

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9. Dynamic Braking Capability

The 20G11GC043JA0NNNNN includes a dynamic braking transistor.

Dynamic braking becomes useful when the motor and load need to decelerate quickly.

When a motor decelerates, the rotating system can return energy to the drive. This regenerative energy can increase the DC-bus voltage.

A suitable braking system can dissipate this energy and allow the motor to decelerate in a more controlled manner.

Typical applications include:

• High-inertia conveyors.
• Material-handling machinery.
• Hoisting equipment.
• Centrifuges.
• Rapid-cycle machinery.
• Certain machine tools.
• Large rotating loads.

The braking transistor itself is only one part of the braking system. The braking resistor must be selected according to the required braking power, resistance value, duty cycle and thermal conditions.

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10. EMC Filtering

The model is configured with an integrated EMC filter.

This is useful in industrial installations where electromagnetic compatibility is important.

A variable-frequency drive uses high-frequency switching as part of its normal operation. As a result, correct installation remains important even when the drive has an integrated filter.

Particular attention should be paid to:

• Grounding.
• Motor cable shielding.
• Cable routing.
• Separation of power and control wiring.
• Communication cable routing.
• Cabinet grounding.
• Motor cable length.

The EMC filter should therefore be considered part of a complete EMC installation strategy.

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11. No Built-In HIM

The model is configured with Blank / No HIM.

HIM refers to the local human-interface module or keypad normally used for local drive operation and parameter access.

The no-HIM configuration is useful when the machine already has:

• A centralized HMI.
• A PLC.
• A remote operator panel.
• Network-based commissioning.
• Supervisory control.

This configuration can be particularly convenient for machine builders because the operator interface can be located on the machine panel instead of directly on the drive.

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12. Product Applications

12.1 Conveyor Systems

Conveyor systems are among the most suitable applications for this type of drive.

A conveyor motor often needs controlled acceleration and deceleration rather than simple full-speed starting.

The drive can provide:

• Adjustable speed.
• Smooth acceleration.
• Controlled deceleration.
• Adjustable ramps.
• Motor monitoring.
• Fault detection.
• Network control.
• Coordination with other drives.

This is particularly useful in automated production and material-handling systems.

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13. Pump Applications

The drive can be used with a variety of industrial pumps.

Typical applications include:

• Water circulation.
• Process pumping.
• Cooling systems.
• Transfer systems.
• Pressure-control systems.
• Industrial fluid handling.

Variable-speed operation allows the motor to respond to changing process requirements.

Instead of operating the pump continuously at a fixed speed, the drive can adjust motor speed according to the required operating condition.

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14. Fan and Blower Applications

Fans and blowers are another common application area.

Typical applications include:

• Industrial ventilation.
• Process-air systems.
• Exhaust systems.
• Cooling systems.
• Air-handling equipment.
• Dust extraction.

The drive can adjust motor speed to suit the required airflow.

This provides greater process flexibility than a simple fixed-speed motor arrangement.

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15. Material-Handling Equipment

Material-handling machinery often requires controlled movement and predictable acceleration.

The drive can be used in:

• Transfer systems.
• Conveyors.
• Lifting equipment.
• Storage systems.
• Production-line handling.
• Automated material transport.

For hoisting applications, the complete system should be designed around the motor, drive, mechanical brake and safety system rather than treating the drive as an independent component.

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16. General Production Machinery

The 20G11GC043JA0NNNNN can also be considered for:

• Mixers.
• Rollers.
• Processing machines.
• Packaging equipment.
• Manufacturing machinery.
• Rotating equipment.
• Material-processing systems.
• General industrial machinery.

Its suitability depends on the motor characteristics, load profile, speed range and required control functions.

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17. Product Advantages

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18. Major Advantages in Practical Use

18.1 Strong Combination of Power and Size

The 22 kW normal-duty rating is combined with a Frame 3 construction.

The basic physical dimensions are approximately 515 × 260 × 212 mm, with a weight of approximately 12 kg.

For a medium-power industrial drive, this provides a useful balance between electrical capacity and installation space.

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18.2 Good Network Integration

The integrated EtherNet/IP interface allows the drive to communicate directly with an industrial control system.

This is useful for machine builders, system integrators and automated production lines.

It can reduce the need for extensive hardwired control connections and makes centralized monitoring more practical.

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18.3 Flexible Motor Control

The PowerFlex 755 platform supports more advanced motor-control functions than a basic V/Hz-only drive.

This makes it suitable for applications where motor response, speed regulation and torque behavior are important.

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18.4 Dynamic Braking

The built-in dynamic braking transistor is valuable for loads that need controlled stopping.

This can be particularly useful for high-inertia equipment.

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18.5 Industrial Enclosure

The IP54 / NEMA Type 12 configuration is suitable for many enclosed industrial installations.

It provides a more protected mechanical arrangement than an open-frame drive.

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19. Five Same-Series or Closely Related Models

The following models are useful choices when comparing different power classes within the PowerFlex 755 family.

These models provide a practical progression from approximately 15 kW to 37 kW normal-duty operation.

The 20G11GC043JA0NNNNN sits in the middle of this range and is particularly suitable for applications around 22 kW under normal-duty conditions.

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20. Mechanical Comparison of Same-Series Models

Exact physical dimensions and weights vary according to the frame and complete catalog configuration. The following table therefore separates the known reference configuration from the larger-frame models rather than inventing identical dimensions.

For the three larger or smaller comparison models, the exact dimensions and weights should be taken from the exact catalog configuration being purchased. They should not be assumed to have the same mechanical envelope as the 20G11GC043JA0NNNNN.

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21. Five Popular Related Models from the Same Brand

For users who are not restricted to the PowerFlex 755 family, the following five models cover several commonly used positions within the broader product range.

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22. Popular Model Parameter Comparison

Because the first four models are available in multiple configurations and frame sizes, their exact dimensions and weights should be treated as configuration-dependent rather than assumed to be identical across catalog variants.

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23. Recommended Model Selection

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24. Application Analysis

Conveyor Systems

The drive is particularly useful for conveyor systems that require variable speed and controlled movement.

A conveyor driven directly across the line may experience a large mechanical shock when started.

With an AC drive, the acceleration can be controlled through an adjustable ramp.

The same principle applies to stopping.

For automated conveyor lines, EtherNet/IP communication can be used to coordinate the drive with upstream and downstream machinery.

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Pump Systems

For pumps, variable-speed control can be used to match motor speed to the required process condition.

The drive can receive a speed command from the control system and continuously adjust motor operation.

This makes it useful in process systems where flow or pressure varies.

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Fan and Blower Systems

Fans and blowers often operate under changing airflow requirements.

Variable-speed control allows the motor to operate at different speeds instead of being limited to a single fixed operating point.

The drive can therefore be used in industrial ventilation, process-air and cooling applications.

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Material Handling

Material-handling systems can benefit from controlled acceleration and deceleration.

This is particularly important when the transported material is heavy or when mechanical shock needs to be minimized.

The integrated braking capability can also be useful when the load needs to stop within a defined time.

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25. Benefits for Machine Builders

The 20G11GC043JA0NNNNN offers several useful characteristics for machine builders.

The integrated network interface can simplify communication between the drive and the machine controller.

The no-HIM configuration can be useful when the machine already has a dedicated operator panel.

The IP54/NEMA Type 12 enclosure can be incorporated into enclosed industrial equipment.

The 22 kW normal-duty capacity provides a practical solution for medium-power motors.

The dynamic braking transistor gives additional flexibility when the machine requires controlled deceleration.

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26. Benefits for System Integrators

For system integrators, the main advantage is the combination of drive performance and network integration.

A typical system can include multiple drives, with the PLC coordinating speed references, start/stop commands and machine states.

The drive can return operating information to the control system.

This can simplify:

• Centralized control.
• Alarm monitoring.
• Fault diagnosis.
• Drive status management.
• Production-line coordination.
• Preventive maintenance.
• Machine commissioning.

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27. Cabinet Design Considerations

The basic mechanical envelope is approximately:

Height: 515 mm

Width: 260 mm

Depth: 212 mm

Weight: 12 kg

The cabinet should provide additional room around these dimensions.

Particular attention should be paid to:

• Airflow.
• Heat dissipation.
• Cable routing.
• Motor cable bending radius.
• Incoming power connections.
• Communication cables.
• Grounding.
• Maintenance access.
• Terminal access.
• Clearance from heat-producing components.

The forced-air cooling system means that cabinet ventilation should be considered during the initial design rather than after installation.

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28. Motor Selection

When pairing the drive with a motor, the following parameters should be evaluated.

A 22 kW motor does not automatically mean that every 22 kW drive is suitable.

The motor’s actual current and the machine’s duty profile are more important when making the final selection.

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29. Normal Duty Versus Heavy Duty

This distinction is one of the most important specifications to understand before purchasing the drive.

A machine operating continuously under high torque should be evaluated using the heavy-duty rating.

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30. Replacement Considerations

If the 20G11GC043JA0NNNNN is being used as an existing drive and a replacement is required, the replacement should be checked against the complete configuration.

Matching only the nominal motor power is not enough.

A replacement with the same kW rating but a different voltage class, enclosure, frame, braking configuration or communication arrangement may not be a true functional replacement.

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31. Key Advantages at a Glance

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32. Overall Product Evaluation

The 20G11GC043JA0NNNNN is a medium-power industrial AC drive designed for applications that require more than basic variable-frequency motor operation.

Its most important characteristics are the combination of 400 VAC three-phase input, 43 A normal-duty output, 22 kW normal-duty power, 37 A heavy-duty output, 18.5 kW heavy-duty power, IP54/NEMA Type 12 protection, embedded EtherNet/IP, dynamic braking and forced-air cooling.

The physical dimensions of approximately 515 × 260 × 212 mm and a weight of approximately 12 kg make it a practical Frame 3 solution for many industrial cabinets.

The drive is especially well suited to conveyors, pumps, fans, blowers, material-handling equipment, production machinery and other medium-power industrial systems.

Its biggest advantage is not simply the 22 kW power rating. The more useful feature is the combination of motor-control capability, network integration, industrial enclosure protection, braking capability and flexible configuration.

For a conventional 22 kW normal-duty application, the 20G11GC043JA0NNNNN is a strong choice within the PowerFlex 755 range.

For lower-power requirements, the 30 A and 37 A configurations provide smaller capacity options. For higher-power machinery, the 60 A and 72 A configurations provide additional capacity.

When selecting an actual replacement or alternative, the most important parameters to compare are voltage, output current, duty rating, motor power, enclosure, frame, communication, braking, dimensions, weight and environmental conditions.