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20G11RD8P0AA0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The 20G11RD8P0AA0NNNNN is an industrial AC variable frequency drive from the PowerFlex 755 series.

It is designed for applications that require adjustable motor speed, controlled acceleration and deceleration, reliable motor control, industrial communication and integration with an automated control system.

The drive is configured for a 480 VAC three-phase power system and provides an 8 A output rating.

For Frame 1 applications, the drive is rated at approximately 5 HP under normal-duty conditions and 3 HP under heavy-duty conditions.

The model uses an IP20 open-type enclosure and is intended primarily for installation inside an electrical control cabinet or another suitable protected enclosure.

It is air cooled and incorporates an embedded EtherNet/IP communication interface, making it particularly suitable for networked industrial automation.

The configuration also includes an internal dynamic-braking transistor, DC terminals, filtering and a blank/no-HIM configuration.

The overall design is intended for industrial machinery where the drive needs to do more than simply start and stop a motor.

It can be used as part of a larger automation system in which a PLC, controller or supervisory system provides operating commands and receives drive status and diagnostic information.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product family	PowerFlex
Product series	PowerFlex 755
Product group	PowerFlex 750-Series
Product type	AC Variable Frequency Drive
Drive category	Industrial AC drive
Model	20G11RD8P0AA0NNNNN
Frame	Frame 1
Enclosure	IP20
Enclosure style	Open Type
Cooling	Air cooled
Input	480 VAC, 3-phase
Output	Variable-frequency 3-phase AC
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Dynamic braking	Internal transistor
Filtering	Included
DC terminals	Included

The PowerFlex 755 series is positioned as a high-performance industrial drive family for applications where motor control, communications, diagnostics and flexible configuration are important.

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3. Model Number

20G11RD8P0AA0NNNNN

The complete catalog number should be used when specifying or replacing the drive.

The model configuration identifies an industrial PowerFlex 755 drive with the following principal characteristics:

• 480 VAC voltage class
• Three-phase operation
• 8 A output
• 5 HP normal-duty rating
• 3 HP heavy-duty rating
• Frame 1 construction
• IP20/open-type enclosure
• Air cooling
• Embedded EtherNet/IP
• AC input with precharge
• DC terminals
• Filtering
• CM capacitor jumper removed
• Internal dynamic-braking transistor
• No local HIM

This is important because PowerFlex 755 models can look very similar while having different electrical ratings or configuration options.

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4. Basic Technical Specifications

Parameter	Specification
Model	20G11RD8P0AA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product type	AC Variable Frequency Drive
Input voltage	480 VAC
Voltage class	480 VAC
Input phase	3-phase
Output phase	3-phase
Output current	8 A
Normal-duty rating	5 HP
Normal-duty power	Approx. 3.7 kW
Heavy-duty rating	3 HP
Heavy-duty power	Approx. 2.2 kW
Frame	Frame 1
Enclosure	IP20
Enclosure type	Open Type
Cooling	Air cooled
Communication	Embedded EtherNet/IP
AC input	With precharge
DC terminals	Yes
Filtering	Yes
CM capacitor jumper	Removed
Dynamic braking	Internal transistor
HIM	No HIM / Blank
Mounting	Cabinet installation
Approx. height	406 mm
Approx. width	114 mm
Approx. depth	210 mm
Approx. dimensions	406 × 114 × 210 mm
Approx. weight (kg)	5.7 kg

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5. Electrical Specifications

The drive is designed for a 480 VAC, three-phase industrial electrical supply.

Its output current rating is 8 A.

The normal-duty power rating is approximately:

5 HP / 3.7 kW

The heavy-duty rating is approximately:

3 HP / 2.2 kW

The difference between normal-duty and heavy-duty ratings is important when selecting a drive.

A motor with a relatively stable load may be evaluated using the normal-duty rating.

A machine with higher overload requirements, repeated acceleration, frequent stopping or higher starting torque requirements may need to be evaluated against the heavy-duty rating.

The actual motor nameplate current should always be checked before final selection.

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6. Main Electrical Parameter Table

Electrical Parameter	Value
Model	20G11RD8P0AA0NNNNN
Input voltage	480 VAC
Input phase	3-phase
Output	3-phase variable-frequency AC
Output current	8 A
Normal-duty power	5 HP
Normal-duty metric power	Approx. 3.7 kW
Heavy-duty power	3 HP
Heavy-duty metric power	Approx. 2.2 kW
Input configuration	AC input with precharge
DC terminals	Yes
Dynamic braking transistor	Yes
Filtering	Yes
CM jumper	Removed
EtherNet/IP	Embedded
Local HIM	No
Cooling	Air cooled
Enclosure	IP20 / Open Type
Frame	Frame 1

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7. Physical Dimensions and Weight

The 20G11RD8P0AA0NNNNN uses a compact Frame 1 construction.

A commonly listed physical size is approximately:

406 mm × 114 mm × 210 mm

The corresponding approximate weight is:

5.7 kg

The physical specifications can be summarized as follows.

Mechanical Parameter	Specification
Model	20G11RD8P0AA0NNNNN
Frame size	Frame 1
Height	Approx. 406 mm
Width	Approx. 114 mm
Depth	Approx. 210 mm
Overall dimensions	Approx. 406 × 114 × 210 mm
Height	Approx. 16.0 in
Width	Approx. 4.5 in
Depth	Approx. 8.3 in
Weight (kg)	Approx. 5.7 kg
Enclosure	IP20
Enclosure type	Open Type
Cooling	Air cooled
Installation	Vertical cabinet installation

The stated dimensions represent the drive itself and should not be treated as the complete cabinet space requirement.

Additional space is normally required for:

• Power wiring
• Motor wiring
• Network cabling
• Grounding
• Cable bending radius
• Ventilation
• Maintenance
• Terminal access
• Heat dissipation

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8. Product Construction

The drive is an air-cooled industrial power electronic device.

Its internal power electronics convert the incoming three-phase AC power into a controlled variable-frequency output for the motor.

In simplified form, the power flow can be represented as:

480 VAC Three-Phase Input

↓

AC Input / Precharge

↓

DC Bus

↓

Power Switching Section

↓

Variable-Frequency Three-Phase Output

↓

AC Motor

The drive controls motor speed by regulating output frequency and voltage.

Depending on the motor-control configuration and application requirements, it can provide considerably more sophisticated control than a simple contactor-based motor starter.

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9. Embedded EtherNet/IP

One of the most useful characteristics of this model is the embedded EtherNet/IP interface.

The communication function allows the drive to become part of a networked automation system.

A typical system can be structured as:

PLC

↓

Industrial Ethernet Network

↓

20G11RD8P0AA0NNNNN

↓

Three-Phase Motor

The controller can provide operating commands and speed references.

The drive can return operating and diagnostic information.

Typical information exchanged may include:

• Start command
• Stop command
• Speed reference
• Direction
• Enable
• Reset
• Actual speed
• Output frequency
• Output current
• Drive status
• Warning status
• Fault status

This reduces the need for a large number of individual hardwired control signals.

---

10. Dynamic Braking

The model includes an internal dynamic-braking transistor.

Dynamic braking is useful when a motor needs to slow down quickly or in a controlled manner.

When a motor with significant rotating inertia is decelerated, energy can be transferred back toward the drive’s DC bus.

A braking resistor can dissipate this energy when correctly selected and installed.

This feature is particularly useful for applications involving:

• Conveyors
• Rollers
• Feed mechanisms
• Material handling
• High-inertia machinery
• Repetitive stopping
• Frequent acceleration and deceleration

Dynamic braking should be designed according to the actual motor inertia, stopping time and duty cycle.

---

11. Filtering

The configuration includes filtering and specifies that the CM capacitor jumper is removed.

Filtering is useful in industrial environments where several electronic devices operate in the same electrical installation.

A modern control cabinet may include:

• PLCs
• HMIs
• AC drives
• Servo systems
• Network equipment
• Sensors
• Measuring equipment
• Power supplies

Good grounding, shielding and cable routing are still important.

The drive’s filtering should be considered part of the overall electromagnetic compatibility design rather than a replacement for proper cabinet engineering.

---

12. No-HIM Configuration

This model is configured with No HIM, meaning there is no local Human Interface Module as part of the catalog configuration.

This is useful in systems where the drive is primarily controlled through:

• PLC
• EtherNet/IP
• Remote HMI
• Supervisory control system
• Centralized machine controller

A no-HIM configuration can provide a clean cabinet arrangement when local manual adjustment is not required.

Parameter configuration and troubleshooting can instead be performed through the appropriate engineering and communication tools.

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13. Product Applications

13.1 Conveyor Systems

The 20G11RD8P0AA0NNNNN is well suited to conveyor applications within its current and overload ratings.

Conveyors may require:

• Adjustable speed
• Smooth acceleration
• Controlled stopping
• Forward/reverse operation
• Networked control
• Motor protection
• Fault monitoring
• Integration with a PLC

The drive can provide the variable-speed control needed to coordinate conveyor movement with other machine sections.

---

13.2 Pumps

The drive can be used for industrial pump applications.

Examples include:

• Process pumps
• Circulation pumps
• Cooling systems
• Water transfer
• Auxiliary pumps
• Pressure-control systems

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

This can be preferable to running the motor continuously at full speed when the process demand changes.

---

13.3 Fans and Blowers

Fans and blowers can benefit from variable-speed operation.

Typical applications include:

• Industrial ventilation
• Machine cooling
• Exhaust systems
• Process airflow
• Cabinet cooling
• Auxiliary air systems

The motor speed can be adjusted according to actual airflow demand.

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13.4 Packaging Equipment

The drive can be used in packaging machinery where motor speed needs to be controlled as part of an automated production sequence.

Examples include:

• Product conveyors
• Feed rollers
• Material feeders
• Packaging lines
• Transport mechanisms
• Film-handling equipment

Network control makes it possible for the machine controller to coordinate the drive with other equipment.

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13.5 Material Handling

Material-handling systems often require controlled acceleration and deceleration.

Applications may include:

• Conveyors
• Rollers
• Transfer mechanisms
• Feed systems
• Sorting equipment
• Small material-handling machines

Controlled acceleration can help reduce mechanical shock.

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13.6 Feeders

Feeders require adjustable motor speed to regulate material flow.

The drive can be integrated with the machine controller so that speed is changed according to production requirements.

Typical examples include:

• Product feeders
• Bulk-material feeders
• Packaging feeders
• Process feeders
• Conveyor feeders

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13.7 Machine Tools and Auxiliary Machinery

The drive can also be used for auxiliary motor applications in automated machinery.

Possible applications include:

• Cooling fans
• Pumps
• Material transport
• Auxiliary rollers
• Small process motors
• Machine ventilation

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14. Product Advantages

14.1 5 HP Normal-Duty Capacity

The 5 HP normal-duty rating provides a useful capacity for many medium-small industrial motors.

It is appropriate for applications where the motor current remains within the drive’s rated capability.

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14.2 8 A Output Rating

The 8 A output rating provides more capacity than the smaller 3.4 A and 5 A Frame 1 configurations.

This makes the model useful when the motor requires additional current capacity.

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14.3 480 VAC Three-Phase Design

The 480 VAC three-phase configuration is widely applicable to industrial motor systems.

It is suitable for machines designed around a 480 VAC three-phase electrical infrastructure.

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14.4 Embedded EtherNet/IP

Embedded industrial Ethernet communication is one of the major advantages of the model.

It allows the drive to become part of a coordinated automation system.

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14.5 Dynamic Braking

The internal dynamic-braking transistor provides additional flexibility for applications requiring controlled deceleration.

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14.6 Compact Frame 1 Design

The Frame 1 construction provides a relatively compact mechanical package for the drive’s capability.

This is beneficial when cabinet space is limited.

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14.7 PID Capability

The PowerFlex 755 platform supports process-control functions such as PID.

This makes it useful for applications where motor speed must respond to process feedback.

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14.8 Air-Cooled Construction

Air cooling is straightforward to integrate into a properly designed control cabinet.

The main requirement is to ensure sufficient ventilation and acceptable ambient temperature.

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14.9 IP20 Open-Type Construction

The IP20/open-type enclosure is appropriate for protected cabinet installation.

It allows the drive to be integrated into a larger industrial control system.

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14.10 Flexible Industrial Integration

The drive can be integrated with other industrial automation equipment.

It can function as part of a complete machine rather than operating as an isolated speed controller.

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15. Detailed Parameter Table

Category	Parameter	Specification
Identification	Model	20G11RD8P0AA0NNNNN
Identification	Brand	Allen-Bradley
Identification	Series	PowerFlex 755
Identification	Product family	PowerFlex 750-Series
Product	Type	AC Variable Frequency Drive
Electrical	Input voltage	480 VAC
Electrical	Input phase	3-phase
Electrical	Output phase	3-phase
Electrical	Output current	8 A
Electrical	Normal-duty	5 HP
Electrical	Normal-duty power	Approx. 3.7 kW
Electrical	Heavy-duty	3 HP
Electrical	Heavy-duty power	Approx. 2.2 kW
Electrical	Output voltage	Variable according to operating conditions
Electrical	Input configuration	AC input with precharge
Terminals	DC terminals	Yes
Braking	Dynamic braking transistor	Yes
Filtering	Input filtering	Yes
Filtering	CM jumper	Removed
Communication	EtherNet/IP	Embedded
Interface	HIM	No HIM
Cooling	Cooling method	Air cooled
Mechanical	Frame	Frame 1
Mechanical	Enclosure	IP20
Mechanical	Enclosure style	Open Type
Mechanical	Installation	Cabinet
Dimensions	Height	Approx. 406 mm
Dimensions	Width	Approx. 114 mm
Dimensions	Depth	Approx. 210 mm
Dimensions	Overall size	Approx. 406 × 114 × 210 mm
Weight	Weight (kg)	Approx. 5.7 kg
Application	Conveyor	Suitable
Application	Pump	Suitable
Application	Fan	Suitable
Application	Feeder	Suitable
Application	Packaging	Suitable
Application	Material handling	Suitable

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16. Five Same-Series or Closely Related Models

The following models are useful comparison choices within the same PowerFlex 755 family or closely related configuration range.

Model	Series	Voltage	Output Current	Normal-Duty	Heavy-Duty	Frame	Approx. Dimensions	Weight (kg)
20G11RD5P0AA0NNNNN	PowerFlex 755	480 VAC	5 A	3 HP	2 HP	1	Approx. 406 × 114 × 210 mm	Approx. 5.7
20G11RD5P0JA0NNNNN	PowerFlex 755	480 VAC	5 A	3 HP	2 HP	1	Frame 1 class	Approx. 5.7
20G11RD8P0JA0NNNNN	PowerFlex 755	480 VAC	8 A	5 HP	3 HP	1	Approx. 406 × 114 × 210 mm	Approx. 5.7
20G11RD011AA0NNNNN	PowerFlex 755	480 VAC	11 A	7.5 HP class	5 HP class	1 class	Frame 1 class	Approx. 5.7–6
20G11RD014AA0NNNNN	PowerFlex 755	480 VAC	14 A class	10 HP class	Higher-duty class	1/2 class	Frame dependent	Approx. 6–8

The closest direct comparison to the target model is 20G11RD8P0JA0NNNNN, because it remains in the same 8 A / 5 HP class while using a different configuration suffix.

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17. Same-Series Comparison

Parameter	20G11RD5P0AA0NNNNN	20G11RD5P0JA0NNNNN	20G11RD8P0AA0NNNNN	20G11RD8P0JA0NNNNN	20G11RD011AA0NNNNN	20G11RD014AA0NNNNN
Series	PF755	PF755	PF755	PF755	PF755	PF755
Voltage	480 VAC	480 VAC	480 VAC	480 VAC	480 VAC	480 VAC
Current	5 A	5 A	8 A	8 A	11 A	14 A class
Normal-duty	3 HP	3 HP	5 HP	5 HP	7.5 HP class	10 HP class
Heavy-duty	2 HP	2 HP	3 HP	3 HP	5 HP class	Higher-duty class
Frame	1	1	1	1	1 class	Frame dependent
Enclosure	IP20	IP20	IP20	IP20	IP20	IP20
EtherNet/IP	Yes	Yes	Yes	Yes	Yes	Yes
Dynamic braking	Yes	Yes	Yes	Yes	Yes	Configuration dependent
Filtering	Yes	Yes	Yes	Yes	Yes	Yes
Cooling	Air	Air	Air	Air	Air	Air
Weight (kg)	Approx. 5.7	Approx. 5.7	Approx. 5.7	Approx. 5.7	Approx. 5.7–6	Approx. 6–8

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18. Five Same-Brand Popular Related Models

For applications where a more compact or simpler drive is preferred, the following related models can be considered.

Model	Series	Voltage Class	Approx. Current	Power Class	Typical Application	Approx. Dimensions	Weight (kg)
25B-D2P3N104	PowerFlex 525	480 VAC class	2.3 A	1 HP class	Small machinery	Approx. 200 × 90 × 180 mm	Approx. 2
25B-D4P0N104	PowerFlex 525	480 VAC class	4.0 A	2 HP class	Pumps / conveyors	Approx. 200 × 90 × 180 mm	Approx. 2–3
25B-D6P0N104	PowerFlex 525	480 VAC class	6.0 A	3 HP class	General machinery	Approx. 200 × 90 × 180 mm	Approx. 2–3
25C-D2P3N104	PowerFlex 523	480 VAC class	2.3 A	1 HP class	Basic motor control	Approx. 200 × 90 × 180 mm	Approx. 2
25C-D4P0N104	PowerFlex 523	480 VAC class	4.0 A	2 HP class	Compact equipment	Approx. 200 × 90 × 180 mm	Approx. 2–3

These models are related alternatives rather than guaranteed direct replacements.

The terminal layout, programming method, available functions, enclosure arrangement and physical mounting can differ.

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19. Comparison with Compact Alternatives

Parameter	20G11RD8P0AA0NNNNN	25B-D4P0N104	25B-D6P0N104	25C-D4P0N104
Series	PowerFlex 755	PowerFlex 525	PowerFlex 525	PowerFlex 523
Product category	High-performance industrial drive	Compact industrial drive	Compact industrial drive	Compact general-purpose drive
Voltage	480 VAC	480 VAC class	480 VAC class	480 VAC class
Current	8 A	4.0 A	6.0 A	4.0 A
Normal-duty power	5 HP	2 HP class	3 HP class	2 HP class
Heavy-duty power	3 HP	Application dependent	Application dependent	Application dependent
Frame	1	Compact	Compact	Compact
Enclosure	IP20	IP20 class	IP20 class	IP20 class
Network	Embedded EtherNet/IP	Network-capable	Network-capable	Network-capable
PID	Supported	Supported	Supported	Supported
Dynamic braking	Internal transistor	Configuration dependent	Configuration dependent	Configuration dependent
Cooling	Air	Air	Air	Air
Approx. height	406 mm	Approx. 200 mm class	Approx. 200 mm class	Approx. 200 mm class
Approx. width	114 mm	Approx. 90 mm class	Approx. 90 mm class	Approx. 90 mm class
Approx. depth	210 mm	Approx. 180 mm class	Approx. 180 mm class	Approx. 180 mm class
Weight (kg)	Approx. 5.7	Approx. 2–3	Approx. 2–3	Approx. 2–3
Main advantage	Advanced functionality	Compact design	Compact design with higher current	Simple compact solution

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20. Conveyor Application

A typical conveyor control architecture can be arranged as:

PLC

↓

EtherNet/IP

↓

20G11RD8P0AA0NNNNN

↓

Three-Phase AC Motor

↓

Conveyor

The controller can issue commands such as:

• Start
• Stop
• Speed reference
• Direction
• Reset

The drive can return:

• Running status
• Actual speed
• Output current
• Warning information
• Fault information

This allows the conveyor to become part of an integrated production system.

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21. Pump Application

For a pump application, the drive can regulate motor speed according to process requirements.

For example:

Low pressure → Increase speed

Target pressure → Maintain speed

Excess pressure → Reduce speed

This operating principle is particularly useful when the process demand changes throughout the production cycle.

A variable-speed drive can therefore provide more flexible control than simple fixed-speed motor operation.

---

22. Fan and Blower Application

For industrial ventilation, the motor does not always need to operate at maximum speed.

The drive can adjust motor speed according to airflow requirements.

A typical operating sequence may be:

Low airflow demand → Low motor speed

Medium airflow demand → Medium motor speed

High airflow demand → High motor speed

This makes the drive useful for machine cooling, industrial ventilation and process-air systems.

---

23. Packaging Application

Packaging machinery often contains multiple motors that must operate according to a coordinated sequence.

The 20G11RD8P0AA0NNNNN can be used for:

• Product transport
• Feed rollers
• Conveyor sections
• Material handling
• Auxiliary drives
• Packaging mechanisms

The embedded communication capability allows speed commands and machine-state information to be exchanged with the control system.

---

24. Material-Handling Application

Material-handling machinery often requires smooth movement.

Sudden motor acceleration can produce unnecessary mechanical shock.

A variable frequency drive can gradually increase motor speed.

Similarly, controlled deceleration can help reduce sudden stopping forces.

This is useful for:

• Conveyors
• Rollers
• Transfer systems
• Feed mechanisms
• Sorting equipment
• Production-line transport

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25. Advantages for Automated Production Lines

The model is particularly suitable for automated production lines because it can communicate with the machine controller.

A typical production line may contain:

• Multiple conveyors
• Feeders
• Pumps
• Fans
• Sensors
• PLC
• HMI
• Network equipment

The drive can become one of the motor-control nodes in the system.

This provides a more organized architecture than using separate hardwired control circuits for every operating command.

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26. Cabinet Installation

The IP20/open-type construction means the drive should generally be installed in a suitable protected enclosure.

The cabinet design should take into account:

Design Item	Consideration
Drive dimensions	Approx. 406 × 114 × 210 mm
Drive weight	Approx. 5.7 kg
Ventilation	Adequate airflow
Heat dissipation	Consider drive losses
Power wiring	Correct conductor size
Motor wiring	Correct conductor size and routing
Grounding	Proper protective grounding
Network wiring	Proper Ethernet routing
Maintenance	Adequate service space
Ambient temperature	Remain within permitted operating conditions
Dust	Prevent excessive contamination
Moisture	Protect against water and condensation
Cable clearance	Allow appropriate bending radius

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27. Thermal Management

The drive is air cooled.

Although the physical package is relatively compact, the power electronics still produce heat.

A cabinet designer should consider:

• Ambient temperature
• Cabinet temperature
• Airflow
• Fan performance
• Dust accumulation
• Number of drives installed
• Motor loading
• Switching frequency
• Nearby heat-generating components

If several drives are installed in the same enclosure, the combined heat load becomes especially important.

Adequate airflow helps maintain stable operating temperature.

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28. Maintenance Recommendations

Routine inspection is useful for long-term industrial operation.

Maintenance Area	Recommended Inspection
Cooling system	Check airflow and fan operation
Air passages	Check for blockage
Cabinet	Inspect for dust accumulation
Power terminals	Check connection condition
Motor terminals	Check cable connections
Grounding	Verify grounding integrity
Ethernet cable	Check connector and cable condition
Drive temperature	Watch for abnormal heating
Fault history	Review recurring faults
Motor current	Check abnormal current increases
Braking system	Inspect where frequently used
Cabinet ventilation	Verify adequate airflow

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29. Troubleshooting Reference

Symptom	Possible Inspection Area
Motor does not start	Enable command, start command, fault status
Drive immediately faults	Input power, motor wiring, drive status
Overcurrent during acceleration	Acceleration time, mechanical load, motor condition
Overvoltage during deceleration	Deceleration time, braking requirements
Motor overheats	Motor load, ventilation, motor condition
Drive overheats	Cabinet temperature, airflow, fan
Speed is incorrect	Speed reference and drive parameters
Network communication is lost	Ethernet cable, network configuration
Unexpected stop	Fault history and control logic
PID output is unstable	Feedback signal and PID parameters
Repeated faults	Mechanical load, wiring, motor and environmental conditions
Excessive motor vibration	Motor alignment and mechanical system

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30. Selection Advantages Compared with Smaller Models

The 20G11RD8P0AA0NNNNN offers a useful middle position within the PowerFlex 755 range.

Compared with a smaller 5 A model, the 8 A configuration provides greater current capacity.

Compared with a much larger drive, the Frame 1 configuration keeps the physical package relatively compact.

This makes it attractive for applications where:

• The motor is around 5 HP
• The motor requires up to approximately 8 A
• The machine uses 480 VAC three-phase power
• Network communication is required
• Controlled acceleration is needed
• Controlled deceleration is needed
• Dynamic braking may be useful
• Process control functions are required
• Cabinet space must be managed carefully

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31. Five Recommended Same-Series Models

1. 20G11RD5P0AA0NNNNN

This model is a lower-current alternative in the same PowerFlex 755 family.

It is suitable for applications around the 3 HP normal-duty class.

Parameter	Specification
Model	20G11RD5P0AA0NNNNN
Series	PowerFlex 755
Voltage	480 VAC
Output current	5 A
Normal-duty	3 HP
Heavy-duty	2 HP
Frame	1
Enclosure	IP20
Cooling	Air cooled
EtherNet/IP	Embedded
Dynamic braking	Internal transistor
Approx. dimensions	Approx. 406 × 114 × 210 mm class
Weight (kg)	Approx. 5.7 kg

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2. 20G11RD5P0JA0NNNNN

This is a closely related configuration within the same 5 A / 3 HP class.

It can be considered when the application requires a different configuration suffix.

Parameter	Specification
Model	20G11RD5P0JA0NNNNN
Series	PowerFlex 755
Voltage	480 VAC
Output current	5 A
Normal-duty	3 HP
Heavy-duty	2 HP
Frame	1
Enclosure	IP20
Cooling	Air cooled
EtherNet/IP	Embedded
Dynamic braking	Internal transistor
Approx. dimensions	Frame 1 class
Weight (kg)	Approx. 5.7 kg

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3. 20G11RD8P0JA0NNNNN

This is the closest configuration alternative to the target model.

It remains in the same 8 A / 5 HP normal-duty class.

Parameter	Specification
Model	20G11RD8P0JA0NNNNN
Series	PowerFlex 755
Voltage	480 VAC
Output current	8 A
Normal-duty	5 HP
Heavy-duty	3 HP
Frame	1
Enclosure	IP20
Cooling	Air cooled
EtherNet/IP	Embedded
Dynamic braking	Internal transistor
Approx. dimensions	Approx. 406 × 114 × 210 mm class
Weight (kg)	Approx. 5.7 kg

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4. 20G11RD011AA0NNNNN

This model provides greater current capacity.

It is useful when moving from a 5 HP application toward a higher-power motor.

Parameter	Specification
Model	20G11RD011AA0NNNNN
Series	PowerFlex 755
Voltage	480 VAC
Output current	11 A
Normal-duty	Approx. 7.5 HP
Heavy-duty	Approx. 5 HP
Frame	Frame 1 class
Enclosure	IP20
Cooling	Air cooled
EtherNet/IP	Embedded
Dynamic braking	Available
Approx. dimensions	Frame dependent
Weight (kg)	Approx. 5.7–6 kg class

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5. 20G11RD014AA0NNNNN

This is a higher-capacity related PowerFlex 755 model.

It is suitable for applications where the 8 A capacity of the target model is insufficient.

Parameter	Specification
Model	20G11RD014AA0NNNNN
Series	PowerFlex 755
Voltage	480 VAC
Output current	Approx. 14 A class
Normal-duty	Approx. 10 HP class
Heavy-duty	Higher-duty class
Frame	Frame dependent
Enclosure	IP20
Cooling	Air cooled
EtherNet/IP	Embedded
Dynamic braking	Configuration dependent
Approx. dimensions	Frame dependent
Weight (kg)	Approx. 6–8 kg class

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32. Five Recommended Same-Brand Models

The following models are suitable alternatives when a smaller, simpler or more compact drive is preferred.

Model	Series	Voltage Class	Current	Power Class	Main Application	Approx. Dimensions	Weight (kg)
25B-D2P3N104	PowerFlex 525	480 VAC class	2.3 A	1 HP class	Small machines	Approx. 200 × 90 × 180 mm	Approx. 2
25B-D4P0N104	PowerFlex 525	480 VAC class	4.0 A	2 HP class	Conveyors / pumps	Approx. 200 × 90 × 180 mm	Approx. 2–3
25B-D6P0N104	PowerFlex 525	480 VAC class	6.0 A	3 HP class	General machinery	Approx. 200 × 90 × 180 mm	Approx. 2–3
25C-D2P3N104	PowerFlex 523	480 VAC class	2.3 A	1 HP class	Basic motor control	Approx. 200 × 90 × 180 mm	Approx. 2
25C-D4P0N104	PowerFlex 523	480 VAC class	4.0 A	2 HP class	Compact equipment	Approx. 200 × 90 × 180 mm	Approx. 2–3

These models belong to related product families but should not automatically be treated as plug-and-play replacements for the PowerFlex 755.

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33. Recommended Model by Application

Application Requirement	Recommended Model	Reason
Around 1 HP compact machine	25B-D2P3N104	Compact and suitable for smaller motors
Around 2 HP compact machine	25B-D4P0N104	Compact 2 HP-class option
Around 3 HP compact machine	25B-D6P0N104	Higher current compact configuration
Basic small motor control	25C-D2P3N104	Simple compact solution
Basic 2 HP motor control	25C-D4P0N104	Compact general-purpose option
Advanced 3 HP control	20G11RD5P0AA0NNNNN	PowerFlex 755 platform
Advanced 5 HP control	20G11RD8P0AA0NNNNN	8 A / 5 HP class
Higher-capacity PowerFlex 755	20G11RD011AA0NNNNN	Higher current capacity
Around 10 HP class	20G11RD014AA0NNNNN	Higher-capacity configuration

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34. Product Advantages at a Glance

Advantage	Description
8 A output	Provides greater current capacity than smaller Frame 1 versions
5 HP normal-duty	Suitable for many 3.7 kW-class industrial motors
3 HP heavy-duty	Provides a defined heavy-duty operating range
480 VAC	Suitable for 480 VAC three-phase systems
PowerFlex 755	High-performance industrial drive platform
Embedded EtherNet/IP	Supports networked automation
Dynamic braking transistor	Useful for controlled deceleration
DC terminals	Provides additional DC-bus connection flexibility
Filtering	Helps support electrical compatibility
Air cooling	Suitable for cabinet-based industrial installations
Frame 1	Relatively compact package
IP20	Designed for protected enclosure installation
No HIM	Useful for centrally controlled applications
PID support	Useful for process-control applications
Flexible control	Suitable for different machine architectures
Industrial diagnostics	Supports maintenance and fault analysis

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35. Complete Technical Summary

Parameter	20G11RD8P0AA0NNNNN
Brand	Allen-Bradley
Product family	PowerFlex
Product series	PowerFlex 755
Product type	AC Variable Frequency Drive
Voltage class	480 VAC
Input	3-phase AC
Output	3-phase variable-frequency AC
Output current	8 A
Normal-duty rating	5 HP
Normal-duty power	Approx. 3.7 kW
Heavy-duty rating	3 HP
Heavy-duty power	Approx. 2.2 kW
Frame	Frame 1
Enclosure	IP20
Enclosure type	Open Type
Cooling	Air cooled
Communication	Embedded EtherNet/IP
AC input	With precharge
DC terminals	Yes
Filtering	Yes
CM jumper	Removed
Dynamic braking	Internal transistor
HIM	No HIM
PID	Supported
Height	Approx. 406 mm
Width	Approx. 114 mm
Depth	Approx. 210 mm
Overall dimensions	Approx. 406 × 114 × 210 mm
Weight (kg)	Approx. 5.7 kg
Typical applications	Conveyors, pumps, fans, feeders, packaging and material handling
Installation	Protected electrical cabinet
Cooling requirement	Adequate cabinet airflow
Control method	Networked or configured control
Main characteristic	High-performance industrial variable-speed motor control

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36. Overall Product Evaluation

The 20G11RD8P0AA0NNNNN is a 480 VAC, three-phase, 8 A PowerFlex 755 AC drive designed for industrial variable-speed motor control.

Its 5 HP normal-duty rating makes it suitable for a wide range of industrial machines, while its 3 HP heavy-duty rating provides a defined operating range for applications with greater load requirements.

The integrated EtherNet/IP interface is a major advantage for automated production systems.

Instead of operating as an isolated motor controller, the drive can become part of a complete machine-control network.

The internal dynamic-braking transistor is another important feature for machines that require controlled stopping.

It can be useful for conveyors, rollers, feeders and other equipment with significant rotating inertia.

The Frame 1 construction also gives the model a relatively compact form factor for its power class.

With approximate dimensions of 406 × 114 × 210 mm and an approximate weight of 5.7 kg, it can be incorporated into a properly designed electrical cabinet without requiring the physical space of a much larger drive.

The IP20/open-type enclosure means that cabinet installation should be considered part of the overall system design.

The cabinet must provide suitable protection, ventilation, grounding and access for maintenance.

The model is particularly appropriate when the application requires a combination of:

• 480 VAC three-phase power
• Approximately 8 A motor current
• 5 HP normal-duty capability
• 3 HP heavy-duty capability
• Variable-speed motor control
• Embedded EtherNet/IP
• Dynamic braking
• Industrial diagnostics
• PID/process-control capability
• Compact Frame 1 construction
• Cabinet-based installation

For a lower-power application, the 20G11RD5P0AA0NNNNN is a logical same-series alternative.

For the same general 8 A / 5 HP class with a different configuration, the 20G11RD8P0JA0NNNNN is a close comparison.

For a higher-power application, the 20G11RD011AA0NNNNN or 20G11RD014AA0NNNNN can be considered depending on the actual motor current and duty requirements.

Where a smaller and more economical drive is preferred, the PowerFlex 525 or PowerFlex 523 families can be considered, provided their electrical ratings, communication requirements, braking requirements and mechanical dimensions are suitable.

In practical terms, the 20G11RD8P0AA0NNNNN is best viewed as an industrial network-capable variable-frequency drive for 5 HP-class motor applications, particularly where reliable speed control, automation integration, controlled acceleration and deceleration, diagnostics and flexible machine control are more important than using the smallest possible drive.

For final equipment selection, the motor nameplate current, overload requirement, duty cycle, input voltage, braking requirements, cabinet temperature, installation environment and required communication functions should all be checked against the actual machine conditions.