Company Information
E-mail		[email protected]
Mobile		+8615980777398
Whatsapp		+8615980777398
WeChat		15980777398

Allen-Bradley 20P41AB020RA0NNN PowerFlex DC Drive — Detailed Product Introduction, Specifications, Applications and Model Recommendations

1. Product Overview

The 20P41AB020RA0NNN is a PowerFlex DC drive designed for industrial DC motor control applications where stable speed regulation, controlled acceleration and deceleration, reversing capability, and regenerative operation are required.

This model belongs to the PowerFlex DC series and is identified under the Allen-Bradley brand. It is a 5 HP-class DC drive with a rated armature/output current of 20 A, a nominal 230 V AC input, and a three-phase, six-pulse input configuration.

The model is configured for four-quadrant regenerative operation. This is one of its most important characteristics because the drive can operate the motor in both forward and reverse directions while also managing motoring and regenerative braking conditions.

The drive is designed for a 5 HP / approximately 3.7 kW motor class. It uses a Frame A mechanical configuration and an IP20, NEMA/UL Type Open enclosure. The unit also has conformal coating and is supplied in a configuration without a local HIM operator interface or communication module.

For industrial users, the 20P41AB020RA0NNN is particularly relevant when maintaining or upgrading an existing DC motor system. It can be used where replacing the entire motor and mechanical system with an AC drive system would be unnecessarily complicated or expensive.

The model is especially suitable for machinery involving frequent acceleration, deceleration, reversing, tension control, winding and unwinding, material handling, printing, converting, and other applications in which regenerative braking is useful.

2. Basic Product Identification

Parameter	Specification
Model	20P41AB020RA0NNN
Brand	Allen-Bradley
Product series	PowerFlex DC
Product type	Regenerative DC Drive
Drive category	Industrial DC motor controller
Rated motor power	5 HP
Approximate metric motor power	3.7 kW
Nominal input voltage	230 V AC
Input voltage class	240 (208) V AC
Input phase	3-phase
Input type	6-pulse
Rated output / armature current	20 A
Motor operation	Four-quadrant operation
Regenerative operation	Yes
Field supply	Single-phase regulated
Frame size	Frame A
Enclosure	IP20
Enclosure style	NEMA/UL Type Open
Conformal coating	Yes
HIM operator interface	No HIM, blank plate
Communication module	None in standard configuration
Documentation	User manual
Typical installation	Industrial control cabinet
Approximate dimensions	26.7 × 36.2 × 30.5 cm
Approximate dimensions	10.5 × 14.3 × 12.0 in
Approximate weight	11.8 kg
Reference shipping/product weight	Approximately 26 lb / 11.8 kg
Main motor type	Industrial DC motor
Primary control function	DC motor speed and torque control
Braking capability	Regenerative
Direction control	Forward / reverse
Typical application class	Industrial machinery

3. Product Series

The 20P41AB020RA0NNN belongs to the PowerFlex DC series.

The PowerFlex DC family is intended for industrial DC motor applications where precise motor control, acceleration and deceleration management, reversing, and regenerative operation are important.

The series is particularly relevant to existing production equipment that already uses DC motors.

This is important because DC motor systems remain present in many older industrial machines. A machine may have a mechanically sound DC motor, gearbox, encoder, transmission, and production line arrangement even though the original drive has reached the end of its service life.

In such cases, replacing the drive while retaining the rest of the machine can be a practical approach.

4. Model Number Interpretation

The model number 20P41AB020RA0NNN contains several configuration identifiers.

Model portion	General interpretation
20P	PowerFlex DC product family
41	Product/input configuration
AB	Specific drive configuration
020	20 A current class
RA	Regenerative / four-quadrant configuration
0NNN	Additional factory configuration coding

The most useful information for selecting the drive is the combination of 5 HP, 20 A, 230 V-class three-phase input, and four-quadrant regenerative operation.

The current rating is particularly important. A replacement should not be selected from horsepower alone. The actual motor armature current, armature voltage, field requirements, speed range, feedback arrangement, and machine load should also be checked.

5. Detailed Electrical Parameters

Electrical parameter	Specification
Rated motor power	5 HP
Rated motor power	Approximately 3.7 kW
Input voltage	230 V AC nominal
Input voltage class	240 (208) V AC
Input phase	3-phase
Input topology	6-pulse
Armature/output current	20 A
Motor operation	Four-quadrant
Regenerative capability	Yes
Field supply	Single-phase regulated
Drive frame	Frame A
Enclosure rating	IP20
Enclosure type	NEMA/UL Type Open
Conformal coating	Included
Local operator interface	Blank plate / no HIM
Communication option	No communication module in standard configuration
Control architecture	DC motor drive
Braking	Regenerative braking
Direction	Forward and reverse
Intended motor	DC motor
Typical installation	Protected industrial electrical cabinet

6. Five-HP Power Class

The 5 HP / 3.7 kW rating makes the 20P41AB020RA0NNN a useful size for small and medium industrial DC motor applications.

In practical terms, this is larger than a 3 HP-class unit and provides a 20 A current capacity.

For an application that previously used a 3 HP drive but has a motor requiring more armature current, a 20 A unit can be a suitable step upward, provided that the motor voltage, current, field circuit, and machine requirements are compatible.

The important point is that the 20 A rating should be treated as an electrical design parameter rather than simply a marketing power number.

7. Four-Quadrant Regenerative Operation

The four-quadrant function is one of the defining characteristics of this model.

A four-quadrant DC drive can control both the direction of motor rotation and the direction of motor torque.

Quadrant	Speed	Torque	Typical operating condition
Quadrant I	Forward	Forward	Forward motoring
Quadrant II	Forward	Reverse	Forward regenerative braking
Quadrant III	Reverse	Reverse	Reverse motoring
Quadrant IV	Reverse	Forward	Reverse regenerative braking

This arrangement is particularly valuable when a machine needs to reverse quickly or when the mechanical load can drive the motor during deceleration.

For example, when a large rotating roll is running at high speed, simply removing the drive command may not be enough to stop it quickly. The drive needs to manage the motor’s braking torque and the energy returned from the mechanical system.

A regenerative drive is designed specifically for this type of operating condition.

8. Product Introduction

The 20P41AB020RA0NNN can be considered a compact industrial DC drive for applications requiring approximately 5 HP of motor power and 20 A armature current.

Its design focuses on motor control rather than providing a large collection of integrated operator or communication accessories.

The standard configuration includes a blank plate rather than a HIM operator interface. This makes the unit suitable for systems in which the machine PLC, external operator panel, hardwired controls, or another control system provides the user interface.

The lack of an integrated communication module also means that the overall control architecture should be considered when planning an installation.

For a replacement project, it is particularly important to compare the existing drive’s I/O configuration, feedback arrangement, control signals, field supply, and parameter settings with the replacement unit.

9. Product Applications

9.1 Winding Machines

Winding equipment is one of the most natural applications for regenerative DC drive technology.

During winding, the motor must accelerate the roll and maintain controlled speed.

During unwinding, the motor may need to provide controlled braking torque rather than simply acting as a conventional motor.

The four-quadrant regenerative configuration makes the 20P41AB020RA0NNN suitable for this type of machine architecture.

9.2 Unwinding and Tension-Control Equipment

Unwinding systems frequently require the motor to transition between motoring and braking.

The drive can be used in systems where the motor needs to maintain controlled tension while the material is being pulled through the machine.

The ability to transition between positive and negative torque makes regenerative operation useful in these applications.

9.3 Printing Machinery

DC motors have historically been used extensively in printing equipment because of their controllable speed characteristics.

The 20P41AB020RA0NNN can be applied to legacy printing machinery where a DC motor remains installed.

It can be especially useful in applications involving rollers, cylinders, feeders, or other rotating sections that require controlled speed changes.

9.4 Conveyor Systems

The drive can be used on DC-motor-driven conveyor systems.

For simple constant-speed conveyor applications, a regenerative drive may provide more capability than necessary.

However, when the conveyor requires frequent starts and stops, controlled deceleration, reversing, or handling of an overhauling load, the four-quadrant configuration becomes more valuable.

9.5 Material Handling

Material-handling equipment can require controlled acceleration and braking.

When the mechanical load can drive the motor during deceleration, regenerative operation provides a way of controlling the returned energy.

Applications may include legacy transport systems, rollers, feeders, lifting-related machinery, and other DC-motor-driven material-handling equipment.

9.6 Metal Processing

Legacy metal-processing equipment frequently contains DC motors.

Typical applications include feeding, rolling-related machinery, tension control, recoiling, and material-processing equipment.

The drive’s regenerative characteristics are particularly useful where the machine repeatedly accelerates and decelerates large rotating masses.

9.7 Machine Tools

The drive may be used in older machine tools equipped with DC motors.

Typical applications include auxiliary drives, spindle-related systems, feeds, and other controlled motor applications.

The suitability of the exact model depends on motor current, voltage, feedback requirements, speed range, and the dynamic requirements of the machine.

9.8 Retrofit Applications

Retrofit work is one of the strongest use cases for this model.

If an existing machine has a healthy 5 HP DC motor but the original drive has failed or become difficult to maintain, installing a compatible DC drive can avoid a complete motor conversion.

This can reduce mechanical modification, wiring changes, commissioning time, and production downtime.

10. Main Product Advantages

10.1 Four-Quadrant Control

The primary advantage is the four-quadrant regenerative architecture.

It provides both forward and reverse motoring as well as regenerative braking in either direction.

This is useful for machines with frequent reversals, rapid deceleration, or overhauling loads.

10.2 20 A Current Capacity

The 20 A armature rating provides a useful capacity for 5 HP-class DC motor applications.

Compared with smaller current models in the same family, this unit can support a higher motor load while maintaining the same general DC-drive architecture.

10.3 5 HP / 3.7 kW Capacity

The 5 HP rating places the model in a practical range for many compact industrial machines.

It can be used for applications that require more power than a 3 HP-class drive without moving immediately into a much larger drive frame.

10.4 Existing DC Motor Compatibility

For legacy equipment, retaining the existing DC motor can be a major advantage.

The motor itself may still be mechanically reliable, while only the electronic drive has become obsolete or failed.

Using a DC drive can therefore simplify the modernization process.

10.5 Conformal Coating

The conformal-coated configuration provides additional protection to electronic components against certain environmental contaminants.

It should not, however, be interpreted as waterproof construction.

The IP20 / NEMA Type Open enclosure still requires installation in an appropriate protected environment.

10.6 Compact Frame

The Frame A configuration provides a relatively compact package.

The approximate physical envelope is around 26.7 × 36.2 × 30.5 cm, with a reference weight of approximately 11.8 kg.

The exact cabinet layout should still allow sufficient space for wiring, cooling, inspection, and maintenance.

10.7 Regenerative Braking

Regenerative braking is especially valuable in machines where braking occurs frequently.

Instead of treating braking simply as a mechanical stopping function, the drive actively controls the electrical and mechanical energy relationship between the motor and the power system.

11. Mechanical Parameters

Mechanical parameter	Specification
Frame size	Frame A
Enclosure	IP20
Enclosure classification	NEMA/UL Type Open
Approx. height	36.2 cm
Approx. width	26.7 cm
Approx. depth	30.5 cm
Approx. dimensions	26.7 × 36.2 × 30.5 cm
Approx. dimensions	10.5 × 14.3 × 12.0 in
Approx. weight	11.8 kg
Reference weight	About 26 lb
Mounting environment	Electrical control cabinet
Outdoor standalone use	Not recommended
Cooling requirement	Cabinet thermal design required
Service clearance	Required around drive and wiring areas

The dimensions and weight should be treated as practical reference values rather than substitutes for the exact mechanical drawing of an individual production revision.

For cabinet fabrication, the exact mechanical drawing should always take priority because connector arrangement, cable routing, mounting clearance, and service access can affect the actual required installation envelope.

12. Control and Interface Configuration

The standard configuration does not include a HIM operator interface.

Instead, the front panel uses a blank-plate arrangement.

This can be useful when the drive is controlled by an external PLC, machine control panel, or other supervisory control system.

The standard configuration also does not include a communication module.

This does not mean that the drive cannot be incorporated into a larger automation system. It means that the communication architecture must be planned according to the selected hardware and available control interfaces.

13. Recommended Models in the Same Series or Closely Related Models

The following five models are useful comparison points within the same PowerFlex DC family.

The main difference between these models is their current and corresponding motor-power class.

Model	Series	Input	Current	Motor power class	Regeneration	Frame / enclosure	Approx. dimensions	Weight (kg)
20P41AB012RA0NNN	PowerFlex DC	208/240 V AC, 3-phase	12 A	3 HP / 2.2 kW	Yes	Frame A / IP20	Approx. 26.7 × 36.2 × 30.5 cm	Approx. 10.5
20P41AB020RA0NNN	PowerFlex DC	208/240 V AC, 3-phase	20 A	5 HP / 3.7 kW	Yes	Frame A / IP20	Approx. 26.7 × 36.2 × 30.5 cm	Approx. 11.8
20P41AB029RA0NNN	PowerFlex DC	208/240 V AC, 3-phase	29 A	7.5 HP / 5.5 kW	Yes	Related configuration	Configuration dependent	Verify
20P41AB038RA0NNN	PowerFlex DC	208/240 V AC, 3-phase	38 A	10 HP / 7.5 kW	Yes	Related configuration	Configuration dependent	Verify
20P41AB055RA0NNN	PowerFlex DC	208/240 V AC, 3-phase	55 A	15 HP / 11 kW	Yes	Related configuration	Configuration dependent	Verify
20P41AB073RA0NNN	PowerFlex DC	208/240 V AC, 3-phase	73 A	20 HP / 15 kW	Yes	Related configuration	Configuration dependent	Verify

20P41AB012RA0NNN

The 12 A model is the logical lower-capacity comparison.

It is suitable where the DC motor’s armature current is within the 12 A class and the machine requires four-quadrant operation.

Compared with the 20 A model, it provides less current capacity and is intended for a smaller motor power class.

20P41AB020RA0NNN

This is the subject model and sits in the 20 A / 5 HP class.

It provides a useful middle point for small industrial DC motor systems.

20P41AB029RA0NNN

The 29 A model moves into approximately the 7.5 HP class.

It is useful when the motor requires more current than the 20 A model can provide.

This is a more appropriate choice for a higher-load machine rather than attempting to operate a 20 A drive beyond its intended rating.

20P41AB038RA0NNN

The 38 A model is associated with approximately 10 HP-class applications.

It provides a higher current capacity for larger industrial DC motors and is more appropriate for machinery with greater mechanical loads.

20P41AB055RA0NNN

The 55 A model is in approximately the 15 HP class.

It is useful for larger DC machinery and applications where higher motor current is required.

20P41AB073RA0NNN

The 73 A model moves into approximately the 20 HP class.

It provides substantially more current capacity and should be considered only when the motor and complete electrical system are designed for the higher power level.

14. Five Related Popular Models Under the Same Brand

The following five models represent commonly encountered alternatives from related drive families.

They are not direct electrical replacements for the 20P41AB020RA0NNN because most are AC drives rather than DC drives.

They become more relevant when the application is being modernized and the existing DC motor is being replaced by an AC motor.

Model	Product family	Drive type	Typical voltage class	Approx. current / power class	Typical application	Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	AC variable-frequency drive	480 V class	Approx. 10 A class	General machinery	Configuration dependent	Verify
25B-D017N104	PowerFlex 525	AC variable-frequency drive	480 V class	Approx. 17 A class	Conveyors, pumps, machinery	Configuration dependent	Verify
22B-D010N104	PowerFlex 40	AC variable-frequency drive	480 V class	Approx. 10 A class	General industrial equipment	Configuration dependent	Verify
20F11ND034AA0NNNNN	PowerFlex 753	AC drive	480 V class	Approx. 34 A class	Advanced industrial machinery	Configuration dependent	Verify
20G11ND034AA0NNNNN	PowerFlex 755	AC drive	480 V class	Approx. 34 A class	High-performance automation	Configuration dependent	Verify

These five alternatives should not be considered direct drop-in replacements.

A DC motor cannot simply be connected to a standard AC variable-frequency drive.

If the objective is to retain the existing DC motor, the PowerFlex DC family is the more relevant group.

If the machine is undergoing a complete electrical and mechanical modernization, an AC motor with a PowerFlex AC drive can become a more attractive long-term architecture.

15. Detailed Comparison of the Six Main DC Models

Parameter	20P41AB012RA0NNN	20P41AB020RA0NNN	20P41AB029RA0NNN	20P41AB038RA0NNN	20P41AB055RA0NNN	20P41AB073RA0NNN
Motor power	3 HP	5 HP	7.5 HP	10 HP	15 HP	20 HP
Approx. kW	2.2	3.7	5.5	7.5	11	15
Current	12 A	20 A	29 A	38 A	55 A	73 A
Input class	208/240 V AC	208/240 V AC	208/240 V AC	208/240 V AC	208/240 V AC	208/240 V AC
Input phase	3-phase	3-phase	3-phase	3-phase	3-phase	3-phase
Input type	6-pulse	6-pulse	6-pulse	6-pulse	6-pulse	6-pulse
Regenerative	Yes	Yes	Yes	Yes	Yes	Yes
Motor operation	Four-quadrant	Four-quadrant	Four-quadrant	Four-quadrant	Four-quadrant	Four-quadrant
Typical use	Small DC machinery	Small/medium DC machinery	Medium DC machinery	Medium DC machinery	Larger DC machinery	Higher-power DC machinery
Dimensions	Approx. 26.7 × 36.2 × 30.5 cm	Approx. 26.7 × 36.2 × 30.5 cm	Verify	Verify	Verify	Verify
Weight (kg)	Approx. 10.5	Approx. 11.8	Verify	Verify	Verify	Verify

16. Application Selection Guide

Application	Suitability of 20P41AB020RA0NNN	Main reason
Small DC conveyor	Excellent	Controlled acceleration and speed
Reversing conveyor	Excellent	Four-quadrant operation
Winding machine	Excellent	Regenerative torque control
Unwinding machine	Excellent	Controlled braking
Printing machine	Very good	Stable DC motor speed control
Material-handling machine	Very good	Controlled acceleration/deceleration
Metal-processing equipment	Very good	Suitable for legacy DC systems
Machine-tool auxiliary system	Good	Compatible with DC motor architecture
Hoisting equipment	Application dependent	Requires complete safety engineering
New AC motor application	Not the first choice	DC drive is intended for DC motors
DC retrofit	Excellent	Retains existing DC motor architecture

17. Why the 20 A Model Can Be Preferable to the 12 A Model

The key difference between the 20P41AB012RA0NNN and 20P41AB020RA0NNN is the current and motor-power class.

The 12 A version is associated with approximately 3 HP operation, while the 20 A model is associated with approximately 5 HP.

This difference matters when the motor operates at higher armature current or when the machine requires additional torque capacity.

However, selecting the larger drive does not automatically make a system better.

The drive must still be matched to the motor’s actual armature current, armature voltage, field requirements, and operating duty.

A 20 A drive should not be selected merely because it has a larger number. The complete motor nameplate and machine operating requirements should determine the selection.

18. Advantages in Retrofit Projects

The 20P41AB020RA0NNN can be particularly valuable in retrofit situations.

A typical legacy machine may contain:

• An existing DC motor
• A DC motor field circuit
• Mechanical transmission
• Encoder or tachometer feedback
• Existing PLC control
• Existing contactors and safety circuits
• Existing control cabinet
• Existing machine wiring
• Existing production tooling

If the mechanical portion of the machine remains reliable, changing the drive rather than converting the entire machine can reduce the scope of the modernization project.

This can be particularly important for production equipment where downtime has a direct impact on manufacturing output.

19. Important Installation Considerations

The 20P41AB020RA0NNN uses an IP20 / NEMA/UL Type Open enclosure.

It should therefore be installed in an appropriate electrical cabinet or protected control enclosure.

The cabinet should provide suitable protection from:

• Dust
• Water
• Oil
• Conductive contaminants
• Excessive humidity
• Mechanical impact
• Excessive temperature
• Corrosive atmosphere

The conformal coating provides additional protection for the electronic components, but it does not turn the drive into a sealed industrial enclosure.

20. Thermal and Cabinet Design

The physical dimensions of the drive are only part of the cabinet calculation.

The designer should also account for:

• Heat generated by the drive
• Ambient temperature
• Airflow
• Adjacent components
• Cable routing
• Input protection equipment
• Output wiring
• Field wiring
• Control wiring
• Maintenance access
• Mounting clearance
• Ventilation requirements

A cabinet that physically fits the drive may still be unsuitable if the thermal environment is too hot.

21. Motor Matching Requirements

Before selecting the 20P41AB020RA0NNN, the following motor information should be checked.

Motor parameter	Recommended verification
Motor type	DC motor
Motor power	Approximately 5 HP class
Armature voltage	Compatible with drive application
Armature current	Within 20 A drive rating
Field voltage	Compatible with regulated field supply
Field current	Within applicable field circuit limits
Base speed	Check against required machine speed
Maximum speed	Check motor manufacturer’s limits
Feedback	Verify encoder/tachometer arrangement
Acceleration	Check machine requirement
Deceleration	Check regenerative requirement
Reversal	Confirm required direction changes
Duty cycle	Verify continuous and intermittent load
Mechanical load	Confirm torque requirement
Braking	Confirm regenerative braking requirement

22. Product Advantages at a Glance

Advantage	Explanation
Four-quadrant operation	Provides forward/reverse motoring and regenerative braking
Regenerative capability	Suitable for applications with frequent deceleration
20 A capacity	Supports a larger motor class than 12 A models
5 HP rating	Suitable for approximately 3.7 kW DC motor applications
DC motor compatibility	Useful for legacy DC equipment
Frame A	Compact mechanical configuration
Conformal coating	Additional protection for electronic components
IP20 construction	Suitable for protected cabinet installations
Retrofit-friendly	Can reduce the need for complete machine conversion
External control compatibility	Suitable for systems using external PLC/HMI control

23. Limitations

The 20P41AB020RA0NNN is not a universal drive.

Its principal limitation is that it is intended for DC motor applications.

If a new machine is being designed around an AC induction or permanent-magnet motor, a modern AC drive is normally the more natural starting point.

The standard configuration also does not include a local HIM operator interface or a communication module.

Another consideration is product lifecycle. This is an established DC drive platform, so anyone planning a long-term project should consider spare-drive strategy, maintenance requirements, and future replacement planning.

For existing equipment, these considerations do not necessarily outweigh the advantages of retaining an otherwise healthy DC motor system.

24. When to Choose This Model

The 20P41AB020RA0NNN is a particularly logical choice when all or most of the following conditions are true:

1. The machine uses a DC motor.
2. The motor is approximately 5 HP / 3.7 kW.
3. The required armature current is within the 20 A class.
4. The system uses a 208/240 V-class three-phase AC supply.
5. The application requires four-quadrant operation.
6. Regenerative braking is important.
7. The existing mechanical system is still in good condition.
8. The project is primarily a drive replacement or retrofit.
9. The control system can operate the drive without an integrated HIM.
10. The installation environment is suitable for an IP20 open enclosure inside a protected cabinet.

25. When Another Model May Be Better

A smaller 12 A model may be preferable when the motor is only around 3 HP and does not require the additional current capacity.

A larger 29 A, 38 A, 55 A, or 73 A model may be necessary when the motor’s armature current exceeds the 20 A class.

A modern AC drive may be a better choice when the machine is being completely redesigned around an AC motor.

A higher-end AC drive may be preferable where advanced feedback, networking, motion-related functions, extensive diagnostics, or sophisticated automation integration are required.

26. Recommended Model Selection Table

Requirement	Recommended model	Reason
Around 3 HP DC motor	20P41AB012RA0NNN	12 A class
Around 5 HP DC motor	20P41AB020RA0NNN	20 A class
Around 7.5 HP DC motor	20P41AB029RA0NNN	29 A class
Around 10 HP DC motor	20P41AB038RA0NNN	38 A class
Around 15 HP DC motor	20P41AB055RA0NNN	55 A class
Around 20 HP DC motor	20P41AB073RA0NNN	73 A class
New compact AC machine	25B-D010N104 class	Modern AC-drive architecture
Higher-power general AC machine	25B-D017N104 class	Greater AC-drive capacity
Advanced industrial AC system	20F11ND034AA0NNNNN class	Higher-end AC control
High-performance AC automation	20G11ND034AA0NNNNN class	Advanced drive architecture

27. Final Product Summary

The 20P41AB020RA0NNN is a PowerFlex DC regenerative drive in the 5 HP / 3.7 kW and 20 A class.

Its principal electrical characteristics are a 230 V AC nominal, 3-phase, six-pulse input, 20 A armature/output current, and four-quadrant regenerative motor operation.

Its mechanical configuration is Frame A, with an IP20, NEMA/UL Type Open enclosure, conformal coating, blank front plate, and no communication module in the standard configuration.

The approximate physical dimensions are 26.7 × 36.2 × 30.5 cm, and the reference weight is approximately 11.8 kg.

Its most important advantage is the combination of DC motor compatibility and four-quadrant regenerative operation.

This makes it particularly useful for existing industrial machinery where the motor needs to accelerate, decelerate, reverse, or regenerate energy during braking.

The model is well suited to applications such as winding, unwinding, printing, material handling, conveyors, metal-processing machinery, machine-tool systems, and industrial DC motor retrofit projects.

When comparing alternatives, the closest choices are the other PowerFlex DC models in the 12 A, 29 A, 38 A, 55 A, and 73 A classes.

For completely new machinery, related AC drive families may be more appropriate, particularly when the machine can be redesigned around an AC motor.

The most important selection rule is to match the drive to the actual motor armature current, armature voltage, field requirements, speed range, feedback system, load torque, acceleration/deceleration duty, and regenerative requirements, rather than choosing solely according to horsepower.

28. Quick Technical Reference

Parameter	20P41AB020RA0NNN
Brand	Allen-Bradley
Series	PowerFlex DC
Product type	Regenerative DC Drive
Motor operation	Four-quadrant
Motor power	5 HP
Metric power	Approximately 3.7 kW
Input voltage	230 V AC nominal
Input voltage class	240 (208) V AC
Input phase	3-phase
Input type	6-pulse
Armature/output current	20 A
Field supply	Single-phase regulated
Frame size	Frame A
Enclosure	IP20
Enclosure type	NEMA/UL Type Open
Conformal coating	Yes
HIM	No HIM / blank plate
Communication module	None in standard configuration
Approx. height	36.2 cm
Approx. width	26.7 cm
Approx. depth	30.5 cm
Approx. dimensions	26.7 × 36.2 × 30.5 cm
Approx. weight (kg)	11.8 kg
Regenerative braking	Yes
Forward operation	Yes
Reverse operation	Yes
Typical use	Industrial DC motor control
Particularly suitable for	Winding, unwinding, conveyors, printing, material handling, metal processing and DC retrofit projects
Closest same-series alternatives	20P41AB012RA0NNN, 20P41AB029RA0NNN, 20P41AB038RA0NNN, 20P41AB055RA0NNN, 20P41AB073RA0NNN
Related alternatives	PowerFlex 525, PowerFlex 40, PowerFlex 753, PowerFlex 755 families