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Allen-Bradley 20G11RC2P1AA0NNNNN — Detailed Product Description, Technical Specifications, Applications, Advantages and Related Models

1. Product Overview

The 20G11RC2P1AA0NNNNN is an industrial AC variable frequency drive belonging to the PowerFlex 755 series. It is designed for controlling the speed, torque, acceleration and deceleration of three-phase AC motors in industrial automation and machine-control applications.

The drive is intended for applications where stable motor operation, flexible speed control, industrial communication, programmable control functions and reliable integration with an automation system are required.

The 20G11RC2P1AA0NNNNN is a relatively small Frame 1 drive within the PowerFlex 755 family. Its nominal power rating is approximately 0.75 kW for normal-duty applications, with a lower heavy-duty rating. The drive is designed for the 400 V-class three-phase supply range and provides an approximately 2.1 A output-current rating.

The unit is an air-cooled, open-type/IP20 drive intended to be installed inside a suitable electrical cabinet or protected control enclosure.

A particularly useful characteristic of this model is its ability to work as part of an industrial automation system rather than functioning only as a local motor-speed controller. The drive can exchange control commands, operating data, status information and diagnostic information with a higher-level control system.

The product is therefore suitable for machine builders, system integrators, plant maintenance departments and industrial users who need a compact variable-speed drive with advanced control and communication functions.

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2. Basic Product Information

Item	Specification
Model	20G11RC2P1AA0NNNNN
Brand	Allen-Bradley
Product family	PowerFlex
Product series	PowerFlex 755
Product type	AC Variable Frequency Drive
Application type	Industrial motor control
Drive construction	Modular industrial AC drive
Frame size	Frame 1
Cooling method	Air cooled
Enclosure	Open type
Protection rating	IP20
Input supply	Three-phase AC
Voltage class	400 V class
Nominal input frequency	50/60 Hz
Output	Three-phase variable-frequency AC
Normal-duty power	Approximately 0.75 kW
Heavy-duty power	Approximately 0.37 kW
Nominal output current	Approximately 2.1 A
Dynamic braking	Integrated braking transistor
EMC filtering	Configured with EMC filtering
Communication	Integrated industrial Ethernet capability
Main network capability	EtherNet/IP
PID control	Supported
Motor control	Variable-speed AC motor control
Keypad/HIM	Not included in the base catalog configuration
Cooling	Forced-air
Approx. dimensions	400 × 190 × 211 mm
Approx. weight	6 kg
Installation	Electrical control cabinet / protected enclosure
Typical motor size	Approximately 0.75 kW class
Main applications	Conveyors, pumps, fans, feeders, packaging and general machinery

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3. Product Series

The 20G11RC2P1AA0NNNNN belongs to the PowerFlex 755 series.

The PowerFlex 755 series is intended for industrial applications that require more advanced motor control and automation integration than a simple general-purpose frequency inverter.

The series can be used across a broad range of industrial motor-control applications and provides a common platform for machine builders who need different drive capacities within the same general control architecture.

Typical characteristics associated with the series include:

• Variable-speed AC motor control
• Flexible motor-control configuration
• Industrial network communication
• Integrated diagnostics
• Programmable acceleration and deceleration
• Dynamic braking capability
• Process-control functions
• PID functionality
• Multiple motor-control operating modes
• Integration with industrial automation systems
• Support for a wide range of industrial applications

The main advantage of belonging to this type of drive family is that a machine can use similar drive architecture even when different motors require different drive sizes.

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4. Detailed Technical Parameters

4.1 Electrical Specifications

Parameter	20G11RC2P1AA0NNNNN
Drive type	AC variable frequency drive
Input phase	3-phase
Input voltage class	400 VAC class
Nominal input voltage	Approximately 400 VAC
Supply frequency	50/60 Hz
Output phase	3-phase
Normal-duty output power	Approximately 0.75 kW
Heavy-duty output power	Approximately 0.37 kW
Normal-duty current	Approximately 2.1 A
Motor application	Three-phase AC motor
Output frequency	Variable
Maximum programmable frequency	Application/configuration dependent
Acceleration control	Programmable
Deceleration control	Programmable
Torque control	Supported
PID control	Supported
Motor overload protection	Supported through drive configuration
Electronic motor protection	Supported
Dynamic braking transistor	Integrated
External braking resistor	Application dependent
DC bus	Available
Input precharge	Integrated
EMC filtering	Included/configured
Power-loss handling	Programmable
Flying-start capability	Supported depending on control mode
Auto-tuning	Supported
Motor identification	Supported depending on control mode

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5. Mechanical Specifications

Parameter	Specification
Model	20G11RC2P1AA0NNNNN
Frame	Frame 1
Cooling	Air cooled
Enclosure type	Open Type
Protection	IP20
Approx. height	400 mm
Approx. width	190 mm
Approx. depth	211 mm
Approx. volume	Approximately 16.0 L
Approx. weight (kg)	6 kg
Mounting orientation	Vertical cabinet mounting
Installation environment	Indoor control cabinet / protected industrial environment
Ventilation requirement	Required
Heat dissipation	Forced-air cooling
Cabinet ventilation	Required according to installation conditions
Clearance	Adequate airflow clearance must be maintained
Cable routing	Bottom/top or designated drive terminals depending on installation arrangement

The approximately 400 × 190 × 211 mm dimensions and approximately 6 kg weight should be considered reference values for planning purposes. Final cabinet design should always be based on the dimensional drawing applicable to the exact drive revision and installation configuration.

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6. Environmental Characteristics

Parameter	Typical Specification
Operating temperature	Approximately -20 to +60 °C, depending on derating
Storage temperature	Approximately -40 to +70 °C
Relative humidity	Non-condensing industrial environment
Installation altitude	Suitable for industrial installation, subject to applicable derating
Cooling	Forced air
Environment	Clean, dry industrial environment
Enclosure	IP20/open type
Outdoor installation	Not recommended without additional enclosure protection
Water exposure	Not suitable without additional protection
Dust exposure	Requires appropriate enclosure/environmental protection
Vibration resistance	Designed for industrial equipment environments
Electrical noise resistance	Designed for industrial control environments

Because this is an IP20/open-type drive, environmental protection is an important part of the installation design.

The drive should not be treated as a weatherproof or washdown-rated product. In applications involving water, conductive dust, corrosive vapors or aggressive chemicals, the drive should be installed inside an enclosure with an appropriate environmental rating.

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7. Control and Communication Functions

7.1 EtherNet/IP Communication

One of the most useful features of the drive is its industrial Ethernet communication capability.

This allows the drive to exchange information with a programmable controller or other automation equipment.

Typical information can include:

• Start command
• Stop command
• Speed reference
• Actual speed
• Motor current
• Drive status
• Drive fault status
• Warning information
• Operating parameters
• Diagnostic information
• Control commands
• Feedback information

This is especially useful when the drive is installed as one component of a larger automated production line.

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7.2 Speed Reference

The motor speed can be controlled through different types of references depending on the system configuration.

The speed reference can be generated by:

• PLC commands
• Network commands
• Analog signals
• Internal parameters
• Preset speeds
• Process-control functions

This flexibility allows the drive to be adapted to different machine architectures.

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7.3 Acceleration and Deceleration

The drive provides programmable acceleration and deceleration ramps.

This allows engineers to control how quickly the motor reaches operating speed and how quickly it stops.

A properly selected acceleration ramp can reduce:

• Mechanical shock
• Belt stress
• Coupling stress
• Gearbox stress
• Product movement
• Current peaks

Deceleration control can also improve the stability of the machine during stopping.

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8. Dynamic Braking

The 20G11RC2P1AA0NNNNN includes a dynamic braking transistor.

This is useful for applications where the motor must slow down more rapidly than it would through normal deceleration.

During deceleration, a motor can temporarily behave as a generator, causing energy to return to the drive’s DC bus.

A braking resistor can be used with the braking transistor to dissipate this energy as heat.

Typical applications where braking may be useful include:

• High-inertia conveyors
• Material-handling machines
• Rapid-stop mechanisms
• Feed systems
• Positioning-related applications
• Machines with frequent acceleration and deceleration

The correct braking resistor must be selected according to the motor, load inertia, stopping time, duty cycle and required braking torque.

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9. Product Introduction in Practical Terms

The easiest way to understand the 20G11RC2P1AA0NNNNN is to consider it a controller between an industrial power supply and a three-phase motor.

Instead of supplying the motor with fixed electrical conditions, the drive generates a controlled output waveform.

By adjusting this output, the drive can control motor speed and torque.

For example, if a conveyor needs to operate at 50% of its normal production speed, the drive can command the motor to operate at the required reduced speed rather than running the motor continuously at full speed.

If the conveyor then needs to accelerate, the drive can gradually increase motor speed according to a programmed acceleration ramp.

This approach provides much greater flexibility than simply switching the motor on and off.

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10. Main Applications

10.1 Conveyor Systems

Small conveyor systems are a natural application for this type of drive.

The motor can be started smoothly and brought to operating speed according to the machine requirements.

Speed can also be adjusted through a PLC or other control system.

Typical applications include:

• Packaging conveyors
• Assembly conveyors
• Transfer conveyors
• Small material-handling systems
• Inspection conveyors
• Feed conveyors

The drive can also provide controlled stopping, which can be important when products must remain properly positioned.

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10.2 Pump Applications

The drive can be used with small industrial pumps where variable-speed operation is desirable.

Instead of running the pump continuously at a fixed speed, motor speed can be adjusted according to process demand.

Potential benefits include:

• Improved flow control
• Reduced unnecessary operation
• Lower mechanical stress
• Better process stability
• Reduced starting shock
• Easier automation integration

PID functionality can also be useful in pressure or flow-control applications.

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10.3 Fan Applications

Fans and blowers often do not need to operate continuously at maximum speed.

A variable-frequency drive can adjust motor speed according to airflow requirements.

This makes the drive suitable for applications such as:

• Ventilation
• Cooling
• Small air-handling systems
• Industrial extraction
• Process ventilation
• Equipment cooling

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10.4 Packaging Machinery

Packaging equipment frequently contains several small motors.

These motors may drive:

• Rollers
• Feeders
• Conveyors
• Product-positioning mechanisms
• Film-handling mechanisms
• Auxiliary mechanisms

A drive such as the 20G11RC2P1AA0NNNNN can provide controlled speed and communication with the machine-control system.

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10.5 Material Handling

Material-handling equipment often requires controlled motor speed.

The drive can be used for:

• Feed mechanisms
• Small conveyors
• Rollers
• Transfer equipment
• Sorting mechanisms
• Material positioning systems

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10.6 General Industrial Machinery

Other possible applications include:

• Small mixers
• Small process machines
• Feeders
• Machine auxiliaries
• Small rotating equipment
• Small production machines
• Automated mechanisms

The suitability of the drive depends on motor current, load type, overload requirement and braking requirement.

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11. Product Advantages

11.1 Advanced Control Compared with Basic Inverters

The PowerFlex 755 architecture provides more functionality than a simple entry-level frequency inverter.

The drive can be integrated into a larger automation system and can provide substantial operating and diagnostic information.

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11.2 Industrial Network Integration

The integrated EtherNet/IP capability is a major advantage in automated production systems.

A controller can communicate directly with the drive rather than relying entirely on local pushbuttons, potentiometers or hardwired signals.

This can simplify machine architecture and improve monitoring.

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11.3 Flexible Speed Control

The drive can provide precise and repeatable speed control for many industrial applications.

This is particularly useful when a production process requires different operating speeds.

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11.4 Controlled Acceleration

Gradual acceleration reduces mechanical shock.

This can increase the service life of:

• Motors
• Gearboxes
• Belts
• Couplings
• Bearings
• Mechanical transmission components

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11.5 Dynamic Braking Capability

The integrated braking transistor provides additional flexibility for applications requiring faster stopping.

This makes the drive more suitable for applications where normal motor deceleration is insufficient.

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11.6 PID Functionality

PID control provides additional possibilities for process applications.

For example, a pressure sensor can provide feedback while the drive adjusts motor speed to maintain the desired process condition.

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11.7 Diagnostic Capability

Drive diagnostics can help maintenance personnel identify problems such as:

• Overcurrent
• Overvoltage
• Undervoltage
• Motor overload
• Communication problems
• Drive faults
• Excessive temperature
• Configuration errors

This can reduce troubleshooting time when the drive is properly integrated into the automation system.

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12. Advantages for Machine Builders

For machine builders, the PowerFlex 755 platform offers a useful standardized drive architecture.

A machine may contain several motors with different power ratings.

Instead of selecting completely unrelated drive platforms, the engineer can use related drive models and maintain a relatively consistent configuration approach.

This can simplify:

• Engineering
• Programming
• Maintenance
• Spare-parts management
• Operator training
• Troubleshooting
• System expansion

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13. Advantages for Maintenance Departments

From a maintenance perspective, a networked variable-frequency drive provides much more information than a simple motor starter.

Maintenance personnel can potentially monitor:

• Motor current
• Motor speed
• Drive status
• Fault codes
• Warning conditions
• Operating parameters
• Communication status

This can help technicians identify whether a problem is related to the motor, mechanical load, electrical supply, drive configuration or communication system.

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14. Five Recommended Models from the Same Series or Closely Related Range

The following models are useful alternatives or related configurations when working with the PowerFlex 755 family.

Because exact catalog configurations can differ by voltage, duty rating, braking arrangement and option package, the models should be selected according to the motor nameplate rather than by horsepower alone.

Model	Series	Voltage Class	Approx. Current	Approx. Power Class	Frame	Cooling	Typical Application
20G11RC2P1JA0NNNNN	PowerFlex 755	400 V	2.1 A	0.75 kW ND	Frame 1	Air	Direct replacement / small motor
20G11RC3P5AA0NNNNN	PowerFlex 755	400 V	3.5 A	1.5 kW class	Frame 1	Air	Conveyors, pumps, fans
20G11RC5P0AA0NNNNN	PowerFlex 755	400 V	5.0 A	2.2 kW class	Frame 1	Air	Small industrial machinery
20G11RC8P7AA0NNNNN	PowerFlex 755	400 V	8.7 A	4 kW class	Frame 1	Air	Higher-load machinery
20G11RD3P4AA0NNNNN	PowerFlex 755	400 V	3.4 A	Approximately 2 HP class	Frame 1	Air	General motor control

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15. Detailed Comparison of the Related Models

Parameter	20G11RC2P1JA0NNNNN	20G11RC3P5AA0NNNNN	20G11RC5P0AA0NNNNN	20G11RC8P7AA0NNNNN	20G11RD3P4AA0NNNNN
Product family	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755
Voltage class	400 V	400 V	400 V	400 V	400 V
Current	2.1 A	3.5 A	5.0 A	8.7 A	3.4 A
Power class	0.75 kW	1.5 kW	2.2 kW class	4 kW class	2 HP class
Frame	1	1	1	1	1
Cooling	Air	Air	Air	Air	Air
Protection	IP20	IP20	IP20	IP20	IP20
EtherNet/IP	Yes	Yes	Yes	Yes	Yes
Dynamic braking transistor	Yes	Yes	Yes	Yes	Yes
Approx. height	400 mm	Approx. 400 mm	Approx. 400 mm	Approx. 400 mm	Approx. 400 mm
Approx. width	190 mm	Approx. 190 mm	Approx. 190 mm	Approx. 190 mm	Approx. 190 mm
Approx. depth	211 mm	Approx. 211 mm	Approx. 211 mm	Approx. 211 mm	Approx. 211 mm
Approx. weight (kg)	6 kg	Approx. 6–7 kg	Approx. 6–7 kg	Approx. 7 kg	Approx. 6–7 kg
Recommended use	Replacement	Higher motor power	Higher motor power	Larger motor	General industrial applications

The 20G11RC2P1JA0NNNNN should receive particular attention because it is the most closely related replacement configuration for the original 20G11RC2P1AA0NNNNN.

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16. Five Recommended Popular Models from the Same Brand

For users who want alternatives beyond the exact PowerFlex 755 configuration, several other models from the same brand’s drive portfolio can be considered.

The following table is intended as a practical selection guide rather than a statement that every model is a direct replacement.

Model	Product Family	Typical Voltage	Approx. Power Range	Approx. Current Range	Drive Type	Typical Application
25B-D2P3N104	PowerFlex 525	400 V class	Small motor applications	Approx. 2.3 A class	Compact AC drive	Small machines, pumps, conveyors
25B-D4P0N104	PowerFlex 525	400 V class	Small motor applications	Approx. 4.0 A class	Compact AC drive	Machinery and material handling
25B-D6P0N104	PowerFlex 525	400 V class	Small-to-medium motor applications	Approx. 6.0 A class	Compact AC drive	Fans, pumps, conveyors
25C-D2P3N104	PowerFlex 523	400 V class	Small motor applications	Approx. 2.3 A class	Compact AC drive	General-purpose motor control
25C-D4P0N104	PowerFlex 523	400 V class	Small motor applications	Approx. 4.0 A class	Compact AC drive	Small industrial machinery

These models belong to a more compact drive family and should not be considered electrically identical to the PowerFlex 755.

Their control architecture, option structure, performance characteristics and application range can differ significantly.

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17. Comparison Between PowerFlex 755 and Compact Drive Families

Feature	PowerFlex 755	PowerFlex 525	PowerFlex 523
Primary positioning	Advanced industrial drive	Compact industrial drive	Compact general-purpose drive
Typical application	Advanced machinery and automation	General industrial machinery	Basic motor control
Network integration	Advanced	Strong	More basic
Control flexibility	High	Medium to high	Medium
Application complexity	High	Medium	Low to medium
Size	Larger	More compact	More compact
Engineering flexibility	High	High	Moderate
Advanced diagnostics	Strong	Strong	Moderate
Suitable for small motors	Yes	Yes	Yes
Suitable for complex machinery	Excellent	Good	More limited
Best reason to choose	Advanced control and integration	Compact flexible machine drive	Economical general-purpose control

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18. Selecting the Right Model

When choosing a replacement or alternative for 20G11RC2P1AA0NNNNN, the first parameter to check should be the motor’s rated current.

For example, if the motor nameplate specifies a current close to the original drive’s rated current, a higher-current drive may not be necessary.

However, if the motor operates under heavy load, experiences frequent acceleration, requires high starting torque or has frequent braking cycles, a larger drive may be more appropriate.

The following parameters should be checked.

Selection Item	Why It Matters
Motor voltage	Must match the drive’s output voltage class
Motor current	Determines whether the drive can continuously operate the motor
Motor power	Provides a basic sizing reference
Load type	Constant torque and variable torque loads behave differently
Starting torque	Important for conveyors and high-load machinery
Acceleration time	Influences required drive capacity
Deceleration time	Influences braking requirements
Load inertia	Important for dynamic braking
Ambient temperature	May require drive derating
Installation altitude	May affect cooling and output capability
Enclosure	Must match environmental requirements
Communication	Must match PLC/network architecture
Safety requirements	Must match machine safety design
Motor feedback	Important when encoder or closed-loop control is required
Cabinet dimensions	Determines physical compatibility
Spare-part strategy	Important for long-term maintenance

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19. Installation Considerations

The 20G11RC2P1AA0NNNNN should normally be installed vertically inside a suitable electrical cabinet.

Adequate ventilation must be provided.

The drive generates heat during operation, and insufficient cabinet ventilation can cause the internal temperature to rise.

Excessive temperature can result in:

• Drive derating
• Overtemperature faults
• Reduced component life
• Unexpected shutdowns
• Reduced reliability

For this reason, cabinet thermal calculations should be performed when several drives or other heat-generating devices are installed together.

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20. Electrical Installation Considerations

The power supply, motor cable, grounding system, control wiring and communication cables should be installed according to the applicable electrical design requirements.

Particular attention should be paid to:

• Protective grounding
• Input protection
• Motor cable routing
• Shielding
• EMC
• Cable length
• Braking resistor wiring
• Control signal separation
• Network cable routing
• Cabinet ventilation

Power cables and sensitive control or communication cables should be arranged carefully to reduce electromagnetic interference.

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21. Maintenance Considerations

Regular inspection can help maintain drive reliability.

Typical maintenance checks include:

1. Inspecting cooling-air passages.
2. Checking for dust accumulation.
3. Inspecting cabinet ventilation.
4. Checking electrical connections.
5. Checking for signs of overheating.
6. Checking motor cable connections.
7. Checking braking components when applicable.
8. Reviewing drive fault history.
9. Checking communication status.
10. Verifying that the drive’s operating parameters remain correct.

In dusty industrial environments, the cooling system deserves particular attention because accumulated dust can restrict airflow and increase internal temperature.

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22. Common Applications and Recommended Configuration Direction

Application	Recommended Approach
Small conveyor	Use 20G11RC2P1-class drive if motor current is suitable
Small pump	Use variable-speed control with PID when required
Small fan	Use variable-frequency control for airflow adjustment
Packaging machine	Use network control for coordinated operation
Small feeder	Use programmable speed reference
Material handling	Consider acceleration/deceleration and braking
High-inertia load	Perform braking calculation
Frequent stopping	Verify braking resistor requirements
Outdoor machinery	Add appropriate environmental enclosure
Washdown machinery	Select a suitable protected installation
Larger motor	Move to higher-current PowerFlex configuration

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23. Key Benefits Summary

Benefit	Practical Value
Variable-speed control	Motor speed can match machine requirements
Controlled acceleration	Reduces mechanical shock
Controlled deceleration	Improves stopping behavior
Dynamic braking	Supports faster stopping where correctly designed
EtherNet/IP	Simplifies automation integration
PID control	Supports process-control applications
Diagnostics	Helps maintenance personnel troubleshoot problems
Compact Frame 1 design	Suitable for small industrial motors
PowerFlex 755 platform	Provides a consistent architecture for industrial applications
Flexible configuration	Can accommodate different machine-control requirements

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24. Product Positioning

The 20G11RC2P1AA0NNNNN can be positioned as a compact industrial AC drive for applications where the motor power requirement is relatively small but the machine still benefits from advanced control and communication.

It is not simply a basic speed controller.

Its strongest value comes from combining:

small motor capacity + industrial drive control + network communication + braking capability + process-control functionality.

This combination makes it particularly useful in automated machinery where the drive is expected to communicate with the rest of the control system.

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25. Quick Reference Specification Table

Parameter	Specification
Model	20G11RC2P1AA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product type	AC Variable Frequency Drive
Input	3-phase AC
Voltage	400 V class
Frequency	50/60 Hz
Output	3-phase variable frequency
Normal-duty power	0.75 kW
Heavy-duty power	0.37 kW
Output current	2.1 A
Frame	Frame 1
Cooling	Air cooled
Enclosure	Open type
Protection	IP20
Communication	EtherNet/IP
PID	Yes
Dynamic braking transistor	Yes
Keypad	Not included in base configuration
Approx. height	400 mm
Approx. width	190 mm
Approx. depth	211 mm
Approx. weight (kg)	6 kg
Main applications	Conveyors, pumps, fans, packaging, feeders, material handling
Recommended installation	Electrical cabinet
Replacement direction	Evaluate 20G11RC2P1JA0NNNNN first

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26. Conclusion

The 20G11RC2P1AA0NNNNN is a compact Frame 1 AC variable-frequency drive in the PowerFlex 755 series.

Its approximately 0.75 kW normal-duty rating, 2.1 A output current, 400 V-class three-phase design, IP20 enclosure, air cooling, integrated EtherNet/IP communication and dynamic braking capability make it suitable for a wide variety of small industrial motor applications.

The product is particularly attractive when a machine requires more than simple motor on/off control.

For conveyor systems, pumps, fans, feeders, packaging equipment and material-handling machinery, variable-speed control can improve machine flexibility and operating efficiency.

Its industrial communication capability also allows the drive to become part of a larger automated control system. A PLC or other controller can exchange commands, speed references, status information and diagnostic information with the drive.

The 20G11RC2P1JA0NNNNN is the most relevant model to investigate when a direct replacement for the original catalog configuration is required.

For applications requiring additional motor capacity, the 20G11RC3P5AA0NNNNN, 20G11RC5P0AA0NNNNN, 20G11RC8P7AA0NNNNN and 20G11RD3P4AA0NNNNN are useful related configurations to evaluate.

For applications where a more compact and economical drive architecture is preferred, models from the PowerFlex 525 and PowerFlex 523 families can also be considered, although these should be treated as different drive platforms rather than automatic replacements.

The most important point when selecting a substitute is that the drive should be matched to the motor nameplate voltage, motor full-load current, duty cycle, load characteristics, acceleration requirements, braking requirements, environmental conditions and communication architecture.

In practical terms, the 20G11RC2P1AA0NNNNN is best suited to a small three-phase industrial motor where the user needs reliable variable-speed control together with automation-system integration, rather than merely a simple standalone frequency converter.