• Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive
  • Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive
  • Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive
  • Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive
1. Product Overview The 20G11RD2P1AA0NNNNN is an industrial AC variable frequency drive belonging to the PowerFlex 755 family. It is designed for three-phase industrial motor speed control and is partic……
Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive
  • Allen Bradley
  • 20G11RD2P1AA0NNNNN
  • PowerFlex AC Drive
  • USA
  • 400 mm × 190 mm × 211.1 mm
  • 6kg
  • Xiamen, China
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Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive

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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.

Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive

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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.

Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive

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Allen Bradley 20G11RD2P1AA0NNNNN PowerFlex AC Drive

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Company Information
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1. Product Overview

The 20G11RD2P1AA0NNNNN is an industrial AC variable frequency drive belonging to the PowerFlex 755 family.

It is designed for three-phase industrial motor speed control and is particularly suitable for applications that require more than simple fixed-speed motor operation.

The drive is rated for a 480 VAC class, three-phase power supply, with a nominal continuous output current of 2.1 A.

Its normal-duty rating is approximately 1 HP, while its heavy-duty rating is approximately 0.5 HP.

The unit uses a Frame 1 mechanical configuration and an IP20 open-type enclosure. It is air cooled and intended for installation inside a suitable electrical cabinet or protected control enclosure.

The configuration includes an AC input with precharge, DC terminals, EMC filtering, a dynamic-braking transistor and an embedded EtherNet/IP communication capability.

The unit is supplied in a blank / no-HIM configuration, which means it is particularly suitable for systems where the drive is configured and controlled through a PLC, industrial network, remote operator interface or centralized control system.


2. Brand and Product Series

Item Specification
Brand Allen-Bradley
Product family PowerFlex
Product series PowerFlex 755
Product platform PowerFlex 750-Series
Product type AC Variable Frequency Drive
Drive category High-performance industrial AC drive
Cooling Air cooled
Frame Frame 1
Enclosure IP20
Enclosure type Open Type
Input 3-phase AC
Communication Embedded EtherNet/IP
Local keypad No HIM
Braking Internal dynamic-braking transistor
EMC Filtered configuration

The PowerFlex 755 series is intended for industrial applications where flexible motor control, communication, diagnostics and advanced drive functions are important.


3. Basic Product Parameters

Parameter Specification
Model 20G11RD2P1AA0NNNNN
Brand Allen-Bradley
Series PowerFlex 755
Product type AC Variable Frequency Drive
Voltage class 480 VAC
Input voltage 380–480 VAC class
Input phase 3-phase
Output phase 3-phase
Continuous output current 2.1 A
Normal-duty rating 1 HP
Normal-duty power 0.75 kW
Heavy-duty rating 0.5 HP
Heavy-duty power 0.37 kW
Frame size Frame 1
Enclosure IP20
Enclosure type Open Type
Cooling Air cooled
Input configuration AC input with precharge
DC terminals Yes
Dynamic braking transistor Yes
EMC filtering Yes
CM configuration Jumper removed
HIM Blank / No HIM
Communication Embedded EtherNet/IP
PID control Supported
Approx. height 400 mm
Approx. width 190 mm
Approx. depth 211.1 mm
Approx. dimensions 400 × 190 × 211.1 mm
Approx. weight (kg) Approx. 6 kg

4. Electrical Specifications

The 20G11RD2P1AA0NNNNN is intended for a three-phase 480 VAC-class industrial electrical supply.

The nominal output current is 2.1 A, making it suitable for relatively small industrial motors while still providing the advanced control capabilities associated with the PowerFlex 755 platform.

Electrical Parameter Specification
Model 20G11RD2P1AA0NNNNN
Voltage class 480 VAC
Typical input range 380–480 VAC
Input phase 3-phase
Output phase 3-phase
Continuous output current 2.1 A
Normal-duty motor power 0.75 kW
Normal-duty horsepower 1 HP
Heavy-duty motor power 0.37 kW
Heavy-duty horsepower 0.5 HP
DC voltage class 650 VDC class
Input frequency 50/60 Hz class
Precharge Yes
DC terminals Yes
Dynamic braking Internal DB transistor
EMC filter Yes

The motor should be selected according to its nameplate current and actual application duty rather than horsepower alone.


5. Normal-Duty Rating

Under normal-duty conditions, the drive is rated for approximately:

1 HP / 0.75 kW

This rating makes the unit appropriate for smaller industrial motors where the load is relatively stable.

Typical applications include:

  • Small conveyors
  • Small pumps
  • Small fans
  • Rollers
  • Feed mechanisms
  • Packaging machinery
  • Small material-handling equipment
  • Auxiliary machine drives
  • Small process equipment

For a normal-duty application, the 2.1 A output rating provides the required capacity for motors within the applicable rating range.


6. Heavy-Duty Rating

Under heavy-duty conditions, the drive is approximately rated for:

0.5 HP / 0.37 kW

The lower heavy-duty rating reflects the additional thermal and current demands associated with more demanding motor operation.

Heavy-duty applications can involve:

  • Higher starting torque
  • Frequent acceleration
  • Frequent deceleration
  • Repeated start/stop operation
  • High mechanical inertia
  • Variable mechanical loading
  • Demanding low-speed operation

When using the drive for a heavy-duty application, the motor’s actual full-load current and overload requirements should be checked carefully.


7. Physical Dimensions and Weight

The drive uses a Frame 1 mechanical design.

The approximate physical dimensions are:

400 mm × 190 mm × 211.1 mm

The approximate equipment weight is approximately:

6 kg

The exact shipping weight can vary depending on packaging and configuration.

Mechanical Parameter Specification
Model 20G11RD2P1AA0NNNNN
Frame Frame 1
Height Approx. 400 mm
Width Approx. 190 mm
Depth Approx. 211.1 mm
Overall dimensions Approx. 400 × 190 × 211.1 mm
Height Approx. 15.75 in
Width Approx. 7.48 in
Depth Approx. 8.31 in
Weight (kg) Approx. 6 kg
Cooling Air cooled
Mounting Vertical
Enclosure IP20
Enclosure type Open Type

The cabinet dimensions should be larger than the drive itself because additional space is required for power wiring, motor wiring, network cables, ventilation and maintenance access.


8. Product Construction

The drive uses an IP20 open-type construction.

This type of enclosure is normally intended for installation inside an electrical cabinet or another suitable protected enclosure.

It should not be treated as a standalone weatherproof drive.

The installation environment should protect the drive from:

  • Direct water
  • Excessive dust
  • Conductive particles
  • Chemical contamination
  • Excessive humidity
  • Mechanical impact
  • Excessive temperature
  • Uncontrolled environmental contamination

The cabinet should also provide suitable ventilation.


9. Air-Cooled Design

The 20G11RD2P1AA0NNNNN uses an air-cooled design.

Proper airflow is important for maintaining the internal temperature of the drive within its acceptable operating range.

The cabinet should be designed so that hot air does not accumulate around the drive.

Important installation considerations include:

  • Adequate ventilation
  • Correct cabinet spacing
  • Clean air passages
  • Proper fan operation
  • Avoiding unnecessary heat sources near the drive
  • Maintaining appropriate ambient temperature
  • Regular cleaning of the cabinet

10. Embedded EtherNet/IP Communication

One of the useful features of this configuration is its embedded EtherNet/IP communication capability.

This allows the drive to become part of a larger industrial automation system.

A controller can send commands to the drive and receive operating information from the drive.

Controller → Drive Drive → Controller
Start command Running status
Stop command Actual speed
Speed reference Output current
Direction command Drive status
Reset command Warning status
Operating reference Fault status
Control parameters Diagnostic information

This arrangement can reduce the need for numerous individual hardwired control signals.


11. No-HIM Configuration

The model is supplied with a blank / no-HIM configuration.

HIM refers to a Human Interface Module.

Because this configuration does not include a local keypad, the drive is well suited to equipment where operation is controlled centrally.

Typical control methods include:

  • PLC control
  • EtherNet/IP
  • Remote HMI
  • Supervisory control
  • Machine control software
  • Centralized operator stations

For machines requiring frequent local parameter adjustment, an appropriate interface option can be considered separately.


12. Dynamic-Braking Capability

The drive includes an internal dynamic-braking transistor.

Dynamic braking is useful when the motor needs to decelerate faster or more predictably than normal coast-to-stop operation.

During motor deceleration, energy can flow back into the drive’s DC bus.

A suitable braking resistor can be used to dissipate this energy.

Dynamic braking can be useful for:

  • Small conveyors
  • Rollers
  • High-inertia mechanisms
  • Material-handling machines
  • Feed mechanisms
  • Repetitive stop/start equipment
  • Machinery requiring controlled deceleration

The actual braking resistor selection should be based on the machine inertia, braking time, frequency of braking and motor characteristics.


13. EMC Filtering

The configuration includes EMC filtering.

EMC filtering helps control electrical interference associated with drive operation.

This can be particularly useful in control cabinets containing:

  • PLCs
  • Industrial Ethernet
  • Sensors
  • Measurement devices
  • Other variable frequency drives
  • Communication equipment
  • Control electronics

However, proper grounding, cable shielding and cable routing are still important.

The EMC filter should not be considered a replacement for correct electrical installation practices.


14. PID Control

The PowerFlex 755 platform supports PID functions.

PID control is useful where motor speed needs to respond automatically to a process feedback signal.

For example, a small pump may be required to maintain a pressure setpoint.

A simplified control sequence could be:

Pressure below setpoint → increase motor speed

Pressure reaches setpoint → maintain speed

Pressure above setpoint → reduce motor speed

Suitable applications can include:

  • Small pressure pumps
  • Small circulation systems
  • Small ventilation systems
  • Flow-control equipment
  • Process auxiliary systems

15. Product Applications

15.1 Small Conveyor Systems

The drive can be used for small industrial conveyors.

It can provide:

  • Variable speed
  • Controlled acceleration
  • Controlled deceleration
  • Network control
  • Fault monitoring
  • Remote operation

A conveyor can therefore operate at different speeds depending on production requirements.


15.2 Small Pumps

The drive is suitable for small pump systems where adjustable speed is required.

Potential applications include:

  • Water circulation
  • Cooling systems
  • Process-fluid circulation
  • Small transfer pumps
  • Pressure-control equipment

The PID function can be useful for applications involving pressure or flow feedback.


15.3 Fans and Blowers

Small industrial fans and blowers can use variable-speed control to match airflow requirements.

Applications include:

  • Industrial ventilation
  • Cabinet cooling
  • Small exhaust systems
  • Process air
  • Equipment cooling

15.4 Feeders

The drive can be used to control small feeders.

Examples include:

  • Product feeders
  • Packaging feeders
  • Material feeders
  • Production-line feeders
  • Small vibratory or rotating feed mechanisms

Variable-speed control can help adjust material flow according to production requirements.


15.5 Packaging Machinery

The drive can control small motors used in packaging equipment.

Typical applications include:

  • Feed rollers
  • Conveyor sections
  • Product transfer
  • Material handling
  • Auxiliary rotating mechanisms

15.6 Small Material-Handling Equipment

The drive can be used in small material-handling systems requiring controlled speed.

Examples include:

  • Rollers
  • Transfer mechanisms
  • Small conveyors
  • Small feeders
  • Product-handling machinery

15.7 Auxiliary Machinery

The drive can also serve as an auxiliary motor drive within a larger industrial machine.

For example:

  • Cooling fans
  • Small pumps
  • Lubrication systems
  • Small conveyors
  • Feed mechanisms
  • Auxiliary rollers

16. Main Product Advantages

16.1 Compact Frame 1 Design

The Frame 1 configuration provides a relatively compact package for a high-performance industrial drive.

This is useful when control-panel space is limited.


16.2 2.1 A Output Capacity

The 2.1 A continuous output rating makes the drive suitable for small industrial motors.

It provides a larger control capability than a basic low-cost motor controller while remaining appropriate for approximately 1 HP normal-duty applications.


16.3 1 HP Normal-Duty Rating

The 1 HP normal-duty rating makes the drive appropriate for many small industrial applications.

Typical examples include small conveyors, pumps, fans and feeders.


16.4 Advanced Drive Platform

Although the motor capacity is relatively small, the drive belongs to a high-performance industrial drive platform.

This means the machine designer can take advantage of functions beyond basic speed adjustment.


16.5 Embedded EtherNet/IP

Network communication simplifies integration into automated production equipment.

It can allow the machine controller to manage:

  • Start/stop
  • Speed
  • Direction
  • Status
  • Faults
  • Diagnostics

16.6 Dynamic Braking

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


16.7 PID Capability

PID functionality makes the drive suitable for small process-control applications.


16.8 EMC Filtering

Integrated filtering can help with electrical noise management in industrial control panels.


16.9 No Local HIM

The no-HIM configuration can be an advantage for centralized automation architectures.

The drive can remain inside a cabinet while the operator interacts with the machine through a remote HMI.


17. Detailed Technical Parameter Table

Category Parameter Specification
Identification Model 20G11RD2P1AA0NNNNN
Identification Brand Allen-Bradley
Identification Series PowerFlex 755
Identification Family PowerFlex 750-Series
Product Type AC Variable Frequency Drive
Product Cooling Air cooled
Electrical Voltage class 480 VAC
Electrical Input voltage 380–480 VAC class
Electrical Input phase 3-phase
Electrical Output phase 3-phase
Electrical Continuous output current 2.1 A
Electrical Normal-duty rating 1 HP
Electrical Normal-duty power 0.75 kW
Electrical Heavy-duty rating 0.5 HP
Electrical Heavy-duty power 0.37 kW
Electrical DC bus class 650 VDC class
Construction Frame Frame 1
Construction Enclosure IP20
Construction Enclosure type Open Type
Communication EtherNet/IP Embedded
Interface HIM No HIM
Braking DB transistor Yes
Filtering EMC filter Yes
Filtering CM jumper Removed
Control PID Supported
Mechanical Height Approx. 400 mm
Mechanical Width Approx. 190 mm
Mechanical Depth Approx. 211.1 mm
Mechanical Dimensions Approx. 400 × 190 × 211.1 mm
Mechanical Weight (kg) Approx. 6 kg
Installation Mounting Vertical
Application Motor control Variable-speed AC motor control
Application Typical loads Small conveyors, pumps, fans, feeders
Installation Recommended location Protected electrical cabinet

18. Five Same-Series or Closely Related Models

The following models can be considered when looking for other PowerFlex 755 configurations.

The exact suitability depends on motor current, voltage, duty class and machine requirements.

Model Series Voltage Class Approx. Output Current Normal-Duty Class Heavy-Duty Class Frame Approx. Dimensions Weight (kg)
20G11RD2P1JA0NNNNN PowerFlex 755 480 VAC 2.1 A 1 HP 0.5 HP 1 Approx. 400 × 190 × 211 mm Approx. 6 kg
20G11RD5P0AA0NNNNN PowerFlex 755 480 VAC 5 A class 3 HP class 2 HP class 1 Approx. 400 × 190 × 211 mm Approx. 6 kg
20G11RD8P7AA0NNNNN PowerFlex 755 480 VAC 8.7 A class 5 HP class 3 HP class 1 Approx. 400 × 190 × 211 mm Approx. 6 kg
20G11RD011AA0NNNNN PowerFlex 755 480 VAC 11 A 7.5 HP class 5 HP class 1 Approx. 400 × 190 × 211 mm Approx. 6 kg
20G11RD014AA0NNNNN PowerFlex 755 480 VAC 14 A 10 HP 7.5 HP 1 Approx. 400 × 190 × 211 mm Approx. 6 kg

The 20G11RD2P1JA0NNNNN is the most directly relevant alternative because it retains the same basic 2.1 A / 1 HP configuration while using a newer configuration designation.


19. Same-Series Model Comparison

Specification 20G11RD2P1AA0NNNNN 20G11RD2P1JA0NNNNN 20G11RD5P0AA0NNNNN 20G11RD8P7AA0NNNNN 20G11RD014AA0NNNNN
Series PowerFlex 755 PowerFlex 755 PowerFlex 755 PowerFlex 755 PowerFlex 755
Voltage class 480 VAC 480 VAC 480 VAC 480 VAC 480 VAC
Current class 2.1 A 2.1 A 5 A class 8.7 A class 14 A
Normal-duty 1 HP 1 HP 3 HP class 5 HP class 10 HP
Heavy-duty 0.5 HP 0.5 HP 2 HP class 3 HP class 7.5 HP
Frame 1 1 1 1 1
Enclosure IP20 IP20 IP20 IP20 IP20
Cooling Air cooled Air cooled Air cooled Air cooled Air cooled
EtherNet/IP Embedded Embedded Embedded Embedded Embedded
PID Supported Supported Supported Supported Supported
Dynamic braking Yes Yes Yes Yes Yes
Approx. height 400 mm 400 mm 400 mm 400 mm 400 mm
Approx. width 190 mm 190 mm 190 mm 190 mm 190 mm
Approx. depth 211.1 mm 211.1 mm 211.1 mm 211.1 mm 211.1 mm
Approx. weight (kg) 6 kg 6 kg 6 kg 6 kg 6 kg

20. Recommended Same-Series Models by Application

Application Recommended Model Main Reason
0.5 HP heavy-duty application 20G11RD2P1AA0NNNNN Suitable 2.1 A configuration
1 HP normal-duty application 20G11RD2P1AA0NNNNN Direct 1 HP ND rating
1 HP replacement configuration 20G11RD2P1JA0NNNNN Closely matched newer configuration
Around 2–3 HP 20G11RD5P0AA0NNNNN Higher current capacity
Around 5 HP 20G11RD8P7AA0NNNNN Higher-capacity alternative
Around 7.5 HP 20G11RD011AA0NNNNN 11 A class
Around 10 HP 20G11RD014AA0NNNNN 14 A configuration
Small conveyor 20G11RD2P1AA0NNNNN Compact Frame 1 drive
Small pump 20G11RD2P1AA0NNNNN PID and variable-speed capability
Small fan 20G11RD2P1AA0NNNNN Appropriate for small motor loads

21. Five Popular Related Models from the Same Brand

The following models are widely used products from the same brand family and are useful alternatives when a smaller, simpler or more compact drive is preferred.

They are not all direct replacements for the 20G11RD2P1AA0NNNNN.

Model Series Voltage Class Approx. Current Class Typical Power Class Typical Application Approx. Dimensions Weight (kg)
25B-D2P3N104 PowerFlex 525 480 VAC class 2.3 A Approx. 0.75 kW Small machines Approx. 200 × 90 × 180 mm Approx. 2 kg
25B-D4P0N104 PowerFlex 525 480 VAC class 4.0 A Approx. 1.5 kW Small conveyors and pumps Approx. 200 × 90 × 180 mm Approx. 2–3 kg
25B-D6P0N104 PowerFlex 525 480 VAC class 6.0 A Approx. 2.2 kW General machinery Approx. 200 × 90 × 180 mm Approx. 2–3 kg
25C-D2P3N104 PowerFlex 523 480 VAC class 2.3 A Approx. 0.75 kW Basic motor control Approx. 200 × 90 × 180 mm Approx. 2 kg
25C-D4P0N104 PowerFlex 523 480 VAC class 4.0 A Approx. 1.5 kW Compact machinery Approx. 200 × 90 × 180 mm Approx. 2–3 kg

For a machine that only needs simple variable-speed control, these compact alternatives may be more economical and physically smaller.

For applications that require the broader functionality of the PowerFlex 755 platform, the 20G11 series remains the more appropriate choice.


22. Comparison Between the Target Drive and Compact Alternatives

Parameter 20G11RD2P1AA0NNNNN 25B-D2P3N104 25B-D4P0N104 25B-D6P0N104
Series PowerFlex 755 PowerFlex 525 PowerFlex 525 PowerFlex 525
Product type High-performance AC drive Compact AC drive Compact AC drive Compact AC drive
Voltage class 480 VAC 480 VAC class 480 VAC class 480 VAC class
Current 2.1 A 2.3 A 4.0 A 6.0 A
Approx. motor class 1 HP ND 1 HP class 2 HP class 3 HP class
Frame Frame 1 Compact frame Compact frame Compact frame
Enclosure IP20 IP20 class IP20 class IP20 class
Network Embedded EtherNet/IP Ethernet-capable Ethernet-capable Ethernet-capable
PID Supported Supported Supported Supported
Dynamic braking DB transistor Configuration dependent Configuration dependent Configuration dependent
Approx. weight (kg) 6 kg Approx. 2 kg Approx. 2–3 kg Approx. 2–3 kg
Main advantage Advanced industrial control Compact size Compact size + higher capacity Higher compact-drive capacity

23. Application Advantages for Conveyor Equipment

The 20G11RD2P1AA0NNNNN can be used in small conveyor systems where variable-speed operation is required.

Instead of operating the motor at one fixed speed, the controller can provide different speed references depending on the production process.

The drive can support:

  • Adjustable conveyor speed
  • Controlled acceleration
  • Controlled deceleration
  • Start/stop commands
  • Remote speed control
  • Network monitoring
  • Fault reporting
  • Motor status monitoring

This can be useful in packaging lines, production lines and material-transfer systems.


24. Application Advantages for Pump Systems

For small pump applications, variable-speed control allows the motor to operate according to actual process requirements.

This can be useful for:

  • Cooling water circulation
  • Small process pumps
  • Pressure-control systems
  • Small transfer pumps
  • Circulation systems
  • Auxiliary fluid systems

PID functionality can further improve the usefulness of the drive in applications where pressure or flow needs to be maintained around a target value.


25. Application Advantages for Fan Systems

Small industrial fans can benefit from variable-speed operation.

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

Possible applications include:

  • Machine cooling
  • Cabinet ventilation
  • Small exhaust systems
  • Process ventilation
  • Equipment cooling

Variable-speed control can also provide more flexibility than simply switching a fixed-speed motor on and off.


26. Application Advantages for Packaging Machinery

Packaging machines frequently use several small motors.

The drive can be used for:

  • Product feed
  • Rollers
  • Small conveyors
  • Transfer mechanisms
  • Material feed systems
  • Auxiliary machine functions

The network capability makes it possible to coordinate the drive with other automation components.


27. Application Advantages for Feeders

Small feeders can require controlled and adjustable motor speed.

The drive can receive a speed reference from the machine controller and adjust the motor accordingly.

This can help control:

  • Product flow
  • Material flow
  • Feed rate
  • Production speed
  • Transfer speed

This type of application is particularly suitable when the feeder is part of a larger automated production system.


28. Application Advantages for Material Handling

The drive can be used on smaller material-handling mechanisms.

Controlled acceleration and deceleration can help reduce sudden mechanical loading.

Potential benefits include:

  • Smooth starting
  • Controlled stopping
  • Adjustable speed
  • Reduced mechanical shock
  • Easier automation integration
  • Remote monitoring
  • Fault diagnostics

29. Network Integration

The embedded EtherNet/IP capability makes the drive suitable for centralized control architectures.

A typical machine arrangement can include:

PLC → Industrial Network → Drive → Motor

The controller can send:

  • Start
  • Stop
  • Speed
  • Direction
  • Reset
  • Control references

The drive can return:

  • Actual speed
  • Current
  • Status
  • Warning
  • Fault
  • Diagnostic information

This type of communication architecture is particularly useful in automated production equipment.


30. Cabinet Installation Requirements

The drive should normally be installed inside a suitable electrical enclosure.

The approximate drive dimensions are:

Height: 400 mm

Width: 190 mm

Depth: 211.1 mm

Weight: approximately 6 kg

The cabinet should provide additional space around the drive.

The required space depends on:

  • Cable routing
  • Terminal access
  • Cooling requirements
  • Adjacent components
  • Maintenance access
  • Network wiring
  • Cabinet ventilation

The drive should not be installed tightly against another heat-generating component unless the cabinet thermal design has been evaluated accordingly.


31. Environmental Considerations

The drive is intended for industrial environments, but the installation conditions still need to be controlled.

Important environmental factors include:

Environmental Factor Consideration
Ambient temperature Keep within applicable operating range
Humidity Avoid condensation
Dust Prevent excessive accumulation
Water Protect the open-type drive
Chemicals Avoid corrosive contamination
Vibration Use appropriate mounting
Altitude Consider derating where applicable
Cabinet temperature Maintain adequate ventilation
Airflow Keep cooling passages clear

32. Maintenance Recommendations

Regular inspection is useful for maintaining reliable operation.

Maintenance Item Inspection
Cooling fan Check operation and unusual noise
Air passages Check for blockage
Cabinet ventilation Confirm adequate airflow
Electrical terminals Check connection condition
Motor cables Inspect insulation and connections
Grounding Check grounding connections
Network cable Inspect physical condition
Drive temperature Check for abnormal heating
Fault history Review recurring faults
Motor current Check abnormal current
Braking system Inspect when braking is frequently used
Cabinet cleanliness Remove excessive dust

33. Troubleshooting Reference

Symptom Areas to Check
Motor does not start Start command, enable signal and fault status
Motor starts but trips Motor current and acceleration parameters
Overcurrent Mechanical load and motor data
Overvoltage during stopping Deceleration time and braking
Motor overheats Motor load and ventilation
Drive overheats Cabinet temperature and airflow
Speed is incorrect Speed reference and configuration
Communication failure Network wiring and settings
Unexpected stop Fault history and control commands
Unstable process PID settings and feedback
Excessive vibration Mechanical system and motor operation

34. Model Selection Recommendations

When selecting a drive for a motor, the following factors should be checked.

Motor Voltage

Confirm that the motor voltage is compatible with the drive output.

Motor Current

The motor’s full-load current is one of the most important selection criteria.

The drive provides approximately 2.1 A continuous output, so the motor should be selected accordingly.

Duty

Determine whether the motor operates under:

  • Normal duty
  • Heavy duty
  • Frequent acceleration
  • Frequent deceleration
  • High inertia
  • Constant torque
  • Variable torque

Braking

If the machine needs rapid stopping, evaluate the dynamic-braking requirements.

Communication

If the machine uses EtherNet/IP, the embedded network function can simplify integration.

Cabinet

The cabinet must provide sufficient physical and thermal space.

Environment

Temperature, dust, moisture and ventilation should be considered before installation.


35. Target Model vs. Closest Newer Configuration

One of the most relevant alternatives is:

20G11RD2P1JA0NNNNN

This configuration maintains the same basic voltage/current/power class as the target model.

Parameter 20G11RD2P1AA0NNNNN 20G11RD2P1JA0NNNNN
Series PowerFlex 755 PowerFlex 755
Voltage class 480 VAC 480 VAC
Output current 2.1 A 2.1 A class
Normal-duty 1 HP 1 HP class
Heavy-duty 0.5 HP 0.5 HP class
Frame 1 1
Enclosure IP20 IP20
Cooling Air cooled Air cooled
Network Embedded EtherNet/IP Embedded EtherNet/IP
Dynamic braking Yes Yes
EMC filtering Yes Yes
HIM No HIM Configuration dependent
Approx. dimensions 400 × 190 × 211.1 mm Similar Frame 1 class
Approx. weight (kg) Approx. 6 kg Approx. 6 kg class

For replacement projects, electrical, firmware, accessories, parameter compatibility and mechanical installation should all be checked rather than treating the two catalog numbers as automatically interchangeable.


36. Product Positioning

The 20G11RD2P1AA0NNNNN occupies the lower-power end of the PowerFlex 755 family.

Its motor capacity is relatively small, but the product platform provides functions normally associated with more advanced industrial drive systems.

This makes it especially interesting for applications where the motor is only around 1 HP but the machine still requires:

  • Network communication
  • Advanced control
  • Diagnostics
  • Dynamic braking
  • PID functionality
  • Industrial automation integration
  • Flexible parameterization
  • Centralized machine control

In other words, the main value of this model is not simply its motor horsepower.

Its value comes from combining a small motor rating with a more sophisticated industrial drive platform.


37. Five Same-Series / Related Models — Detailed Comparison

Model Voltage Current Normal Duty Heavy Duty Frame Enclosure Communication Dimensions Weight (kg)
20G11RD2P1AA0NNNNN 480 VAC 2.1 A 1 HP 0.5 HP 1 IP20 EtherNet/IP 400 × 190 × 211.1 mm Approx. 6
20G11RD2P1JA0NNNNN 480 VAC 2.1 A class 1 HP 0.5 HP 1 IP20 EtherNet/IP Frame 1 class Approx. 6
20G11RD5P0AA0NNNNN 480 VAC 5 A class 3 HP class 2 HP class 1 IP20 EtherNet/IP Frame 1 class Approx. 6
20G11RD8P7AA0NNNNN 480 VAC 8.7 A class 5 HP class 3 HP class 1 IP20 EtherNet/IP Frame 1 class Approx. 6
20G11RD011AA0NNNNN 480 VAC 11 A 7.5 HP class 5 HP class 1 IP20 EtherNet/IP Frame 1 class Approx. 6
20G11RD014AA0NNNNN 480 VAC 14 A 10 HP 7.5 HP 1 IP20 EtherNet/IP Frame 1 class Approx. 6

38. Five Related Models from the Same Brand — Detailed Comparison

Model Series Voltage Current Typical Power Typical Application Approx. Dimensions Weight (kg)
25B-D2P3N104 PowerFlex 525 480 VAC class 2.3 A 0.75 kW class Small conveyors / pumps Approx. 200 × 90 × 180 mm Approx. 2
25B-D4P0N104 PowerFlex 525 480 VAC class 4.0 A 1.5 kW class Small machinery Approx. 200 × 90 × 180 mm Approx. 2–3
25B-D6P0N104 PowerFlex 525 480 VAC class 6.0 A 2.2 kW class General machinery Approx. 200 × 90 × 180 mm Approx. 2–3
25C-D2P3N104 PowerFlex 523 480 VAC class 2.3 A 0.75 kW class Basic motor control Approx. 200 × 90 × 180 mm Approx. 2
25C-D4P0N104 PowerFlex 523 480 VAC class 4.0 A 1.5 kW class Compact equipment Approx. 200 × 90 × 180 mm Approx. 2–3

39. Recommended Model by Application Type

Application Recommended Model Reason
Small conveyor 20G11RD2P1AA0NNNNN 1 HP class and advanced network functions
Small pump 20G11RD2P1AA0NNNNN Variable speed and PID
Small fan 20G11RD2P1AA0NNNNN Suitable for small motor applications
Small feeder 20G11RD2P1AA0NNNNN Adjustable speed
Packaging machine 20G11RD2P1AA0NNNNN Network integration
1 HP replacement 20G11RD2P1JA0NNNNN Closely matched configuration
2–3 HP application 20G11RD5P0AA0NNNNN Higher current capacity
5 HP application 20G11RD8P7AA0NNNNN Higher capacity
7.5 HP application 20G11RD011AA0NNNNN 11 A class
10 HP application 20G11RD014AA0NNNNN 14 A class
Small compact machine 25B-D2P3N104 Smaller physical package
Simple small motor control 25C-D2P3N104 Compact drive architecture

40. Overall Product Advantages

Advantage Description
1 HP normal-duty capacity Suitable for many small industrial motors
2.1 A output Appropriate for small three-phase motor applications
480 VAC class Fits common industrial three-phase power systems
Frame 1 Compact mechanical configuration
IP20 Suitable for cabinet installation
EtherNet/IP Convenient automation-network integration
PID Useful for pressure, flow and process applications
Dynamic braking Helps manage controlled deceleration
EMC filtering Helps reduce electrical interference
No HIM Suitable for centralized machine control
Air cooling Suitable for cabinet-based industrial installation
Advanced control More flexible than a basic fixed-speed starter
Diagnostics Supports maintenance and troubleshooting
Industrial automation compatibility Suitable for PLC-based machine architectures

41. Complete Final Specification

Category Specification
Model 20G11RD2P1AA0NNNNN
Brand Allen-Bradley
Product series PowerFlex 755
Product family PowerFlex 750-Series
Product type AC Variable Frequency Drive
Voltage class 480 VAC
Input voltage 380–480 VAC class
Input phase 3-phase
Output phase 3-phase
Continuous output current 2.1 A
Normal-duty rating 1 HP
Normal-duty power 0.75 kW
Heavy-duty rating 0.5 HP
Heavy-duty power 0.37 kW
DC bus class 650 VDC class
Input configuration AC input with precharge
DC terminals Yes
Frame Frame 1
Enclosure IP20
Enclosure type Open Type
Cooling Air cooled
Dynamic braking transistor Yes
EMC filtering Yes
CM configuration Jumper removed
Communication Embedded EtherNet/IP
HIM Blank / No HIM
PID Supported
Approx. height 400 mm
Approx. width 190 mm
Approx. depth 211.1 mm
Approx. dimensions 400 × 190 × 211.1 mm
Approx. weight (kg) Approx. 6 kg
Main applications Small conveyors, pumps, fans, feeders, packaging machinery
Installation Protected electrical cabinet
Main advantage Advanced industrial drive functions in a compact 1 HP class configuration

42. Final Product Assessment

The 20G11RD2P1AA0NNNNN is a compact PowerFlex 755 AC drive designed for small three-phase industrial motor applications.

Its 480 VAC class input, 2.1 A output current, 1 HP normal-duty rating and 0.5 HP heavy-duty rating make it suitable for relatively small motors.

The model is more than a simple speed controller. Its value comes from the combination of variable-speed motor control, industrial communication, PID functionality, EMC filtering, dynamic-braking capability and diagnostic functions.

The embedded EtherNet/IP capability makes it a practical choice for PLC-controlled machinery where the drive needs to exchange commands and operating data with the main automation system.

The Frame 1 construction keeps the drive relatively compact, while the IP20 open-type enclosure means that cabinet installation is normally required.

The approximate physical size is 400 mm × 190 mm × 211.1 mm, with an approximate weight of 6 kg.

For a direct same-capacity alternative, 20G11RD2P1JA0NNNNN is the most relevant model to consider.

For higher motor power, the 20G11RD5P0AA0NNNNN, 20G11RD8P7AA0NNNNN, 20G11RD011AA0NNNNN and 20G11RD014AA0NNNNN provide progressively higher current classes within the same general PowerFlex 755 platform.

For applications where the advanced features of the PowerFlex 755 platform are unnecessary, smaller compact-drive families can also be considered.

Overall, the 20G11RD2P1AA0NNNNN is best suited to small industrial machines that require reliable variable-speed AC motor control, network integration, controlled acceleration and deceleration, process-control functions and centralized diagnostics rather than a basic standalone motor starter.



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