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

Allen-Bradley 20F11RC3P5AA0NNNNN — PowerFlex 753 1.5 kW AC Drive | Detailed Technical Specifications, Applications, Advantages and Related Models

1. Product Overview

The Allen-Bradley 20F11RC3P5AA0NNNNN is a PowerFlex 753 air-cooled AC drive designed for three-phase industrial motor control applications.

This model belongs to the 400 VAC class and uses a Frame 1 mechanical package. Its primary normal-duty rating is 3.5 A and 1.5 kW, making it suitable for many small industrial motors that require adjustable-speed operation.

The drive is configured with embedded I/O, EMC filtering, an internal dynamic-braking transistor, AC input with precharge, DC terminals, forced-air cooling, IP20 open-type construction, and a blank/no-HIM configuration.

One of the important characteristics of the exact AA catalog configuration is that the common-mode capacitor jumper is removed. This is the key distinction between this model and the closely related 20F11RC3P5JA0NNNNN, where the corresponding jumper configuration is installed.

The drive is well suited to conveyors, feeders, pumps, fans, blowers, packaging equipment, material-handling systems, rollers and other industrial machinery where a relatively small three-phase motor needs variable-speed control.

---

2. Product Identification

The most important electrical figure for selection is the 3.5 A continuous output rating.

The 1.5 kW normal-duty rating is a convenient motor-power reference, but the actual motor nameplate current should always be checked before selecting the drive.

---

3. Detailed Electrical Parameters

The 1.5 kW normal-duty rating places this drive above the 0.75 kW-class 20F11RC2P1AA0NNNNN.

This makes the 3P5 model a useful step up when the motor current or mechanical load is too high for the smaller 2P1 model.

---

4. Normal-Duty and Heavy-Duty Capability

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

A motor running a relatively steady load may be appropriate for the normal-duty rating.

A machine with high starting torque, repeated acceleration, frequent stopping or substantial overload may require the lower heavy-duty power rating.

For final engineering selection, the motor’s actual nameplate current and the machine’s operating cycle should be considered together.

---

5. Brand and Product Series

The PowerFlex 753 series is an industrial AC-drive platform intended for applications requiring more functionality than a simple fixed-speed motor starter.

The series is particularly useful in machine-building environments where several motor sizes need to be controlled using a consistent drive architecture.

---

6. Product Introduction

The 20F11RC3P5AA0NNNNN works as the electronic power-control stage between the industrial electrical supply and a three-phase AC motor.

A typical system can be represented as:

PLC / Controller

↓

Speed / Start / Stop Command

↓

20F11RC3P5AA0NNNNN

↓

Three-Phase AC Motor

↓

Gearbox / Conveyor / Pump / Fan / Machine

Instead of supplying the motor with a fixed-frequency electrical signal, the drive creates a controlled output.

This allows the motor to operate at different speeds.

For example, a conveyor motor can accelerate gradually rather than starting instantly at full speed.

A pump can operate at different speeds depending on process demand.

A fan can reduce speed when less airflow is required.

A feeder can change its speed according to the production rate.

This flexibility is the main reason variable-frequency drives are widely used in industrial automation.

---

7. 1.5 kW Motor-Control Capability

The 1.5 kW normal-duty rating makes this model suitable for a substantial range of small industrial motors.

A 1.5 kW motor is commonly used in:

• Small conveyors
• Feeders
• Rollers
• Packaging machines
• Small pumps
• Fans
• Blowers
• Material-transfer systems
• Small mixers
• Auxiliary machinery

The drive’s 3.5 A continuous current is particularly important.

A motor should not be selected solely because its nameplate says 1.5 kW.

The motor’s rated current must also be within the applicable drive rating.

---

8. 400 VAC Three-Phase Operation

The drive is designed for the 400 VAC industrial voltage class.

This makes it appropriate for many industrial electrical systems using 380 V, 400 V or 415 V three-phase power.

The drive receives three-phase AC power and provides controlled three-phase output to the motor.

Before installation, the following should be checked:

• Incoming supply voltage
• Supply phase
• Motor voltage
• Motor current
• Motor frequency
• Grounding arrangement
• Machine duty
• Motor connection configuration

---

9. Frame 1 Construction

The product uses a Frame 1 mechanical design.

Approximate dimensions are:

400.5 mm high × 110 mm wide × 211 mm deep

Approximate drive weight:

6.0 kg

The relatively narrow body is useful for control cabinets where horizontal space is limited.

The cabinet designer should nevertheless allow additional clearance around the drive.

The overall machine footprint will normally be larger than the drive body because space is required for cables, ventilation and maintenance.

---

10. Dimensions and Weight

The approximately 6.0 kg weight is useful for mechanical panel design.

Packaging, accessories and shipping materials can add weight, so shipping weight should not be confused with the approximate drive assembly weight.

---

11. Forced-Air Cooling

The drive uses forced-air cooling.

The power electronics produce heat during operation, so air must move through the drive to maintain an acceptable operating temperature.

Cabinet designers should consider:

• Ambient temperature
• Cabinet temperature
• Airflow
• Fan condition
• Dust accumulation
• Heat from neighboring components
• Cabinet ventilation

If multiple drives are installed in one cabinet, their combined heat generation should be included in the thermal design.

---

12. IP20 Open-Type Construction

The drive has an IP20 / NEMA/UL open-type construction.

It is therefore intended to be installed inside a suitable electrical enclosure.

The drive itself should not be considered a sealed outdoor product.

The surrounding enclosure should protect it from:

• Water
• Oil
• Dust
• Metal particles
• Chemical contamination
• Excessive humidity
• Mechanical impact

This construction is common in industrial control cabinets.

---

13. EMC Filtering

The product includes an EMC filter configuration.

Variable-frequency drives use high-frequency electronic switching.

This switching is essential for motor control but can also create electrical noise.

The EMC filtering arrangement helps control certain conducted disturbances.

However, proper machine wiring is still essential.

A good installation should pay attention to:

• Grounding
• Cabinet bonding
• Motor-cable routing
• Control-cable routing
• Shielding
• Cable separation
• Correct termination

The EMC filter should therefore be regarded as part of the complete EMC strategy rather than as a substitute for good installation practice.

---

14. Common-Mode Capacitor Jumper Removed

The AA configuration is one of the defining characteristics of this model.

For:

20F11RC3P5AA0NNNNN

the common-mode capacitor jumper is removed.

The closely related JA version:

20F11RC3P5JA0NNNNN

uses the corresponding installed configuration.

This difference matters when selecting a replacement drive.

The two models can look very similar and have the same basic power rating, but the complete catalog configuration should be matched to the intended electrical system.

---

15. Dynamic-Braking Transistor

The drive includes an internal dynamic-braking transistor.

This is useful when the machine requires more aggressive or controlled deceleration.

When an AC motor slows down, mechanical energy can return to the drive’s DC bus.

If the regenerated energy is high enough, the DC-bus voltage can rise.

A braking resistor can dissipate that energy as heat.

The internal braking transistor provides the switching function for the external braking resistor.

Potential applications include:

• Rapid conveyor stopping
• Packaging machinery
• Rollers
• Feed mechanisms
• High-cycle machines
• Material-handling systems

The braking resistor must be selected separately according to the actual machine inertia, braking time and duty cycle.

---

16. Embedded I/O

The PowerFlex 753 platform provides embedded I/O.

This can simplify machine integration.

Depending on the control architecture, the drive can handle signals such as:

• Start
• Stop
• Enable
• Direction
• Speed reference
• Fault reset
• Run status
• Digital input
• Digital output
• Analog reference

For a small standalone machine, embedded I/O can reduce the amount of additional interface hardware required.

For a larger automation system, the drive can be integrated into the overall PLC and communication structure.

---

17. Blank / No HIM

The catalog number specifies a Blank / No HIM configuration.

HIM means Human Interface Module.

A local keypad is useful during commissioning, but it is not necessary for every industrial machine.

Many OEM machines already have a dedicated HMI.

In that situation, the operator can control the machine through the HMI while the drive remains inside the electrical cabinet.

The no-HIM configuration can therefore produce a clean and compact cabinet arrangement.

---

18. Main Applications

18.1 Conveyor Systems

Small conveyors are one of the most common applications for a 1.5 kW-class drive.

A conveyor may need:

• Controlled acceleration
• Adjustable running speed
• Controlled deceleration
• Direction control
• Different speeds for different production stages

The drive can provide these functions.

This is particularly useful in:

• Packaging lines
• Assembly machines
• Inspection systems
• Material-transfer equipment
• Production lines

---

19. Feeder Systems

Feeders often need accurate speed adjustment.

The speed of the motor directly affects the amount of product or material delivered.

The drive can allow the machine controller to adjust the feed rate.

Typical examples include:

• Product feeders
• Packaging feeders
• Material feeders
• Assembly feeders
• Processing feeders

---

20. Small Pump Systems

The drive can be used for suitable small pump applications.

Examples include:

• Process-water pumps
• Cooling-water circulation
• Auxiliary pumps
• Fluid-transfer equipment
• Small circulation systems

The ability to vary motor speed can make it easier to match pump operation to actual process requirements.

For suitable centrifugal pump applications, operating at reduced speed can also reduce energy consumption.

---

21. Fan and Blower Applications

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

The drive allows the machine controller to vary the motor speed.

Potential applications include:

• Equipment cooling
• Small exhaust systems
• Ventilation
• Process air
• Machine cooling systems

This makes the drive useful in applications where airflow needs to change according to temperature or process demand.

---

22. Packaging Machinery

Packaging equipment often uses motors in the 0.75–1.5 kW range.

The drive can be used for:

• Product conveyors
• Feed rollers
• Transfer rollers
• Small feeders
• Packaging mechanisms
• Auxiliary machine functions

Controlled acceleration and deceleration can reduce mechanical shock during repeated production cycles.

---

23. Material-Handling Equipment

Material-handling machines frequently benefit from variable-speed control.

A motor may need to run slowly while a product is positioned and faster during normal transfer.

The drive can change motor speed according to the machine sequence.

Controlled acceleration can also reduce stress on mechanical components.

---

24. Roller Applications

Industrial rollers often require adjustable speed.

Examples include:

• Product rollers
• Transfer rollers
• Small processing rollers
• Packaging rollers
• Conveyor rollers

The drive can provide controlled speed while allowing the PLC to change the speed reference.

---

25. Small Mixers

The drive can also be used in suitable small mixer applications.

A mixer may require different speeds for different stages of the process.

For example:

Low Speed → Loading

↓

Medium Speed → Mixing

↓

High Speed → Processing

↓

Low Speed → Discharge

The drive provides the electronic speed-control stage required for this type of operation.

The actual motor torque and duty cycle should be checked carefully for high-inertia mixing applications.

---

26. Auxiliary Industrial Machinery

The drive is also suitable for auxiliary motors inside larger machines.

A production machine may have:

• One large main motor
• One 1.5 kW feeder
• One small cooling fan
• One auxiliary pump
• One transfer conveyor

Using a PowerFlex 753 drive for the 1.5 kW auxiliary motor can help maintain consistency within the overall control architecture.

---

27. Main Product Advantages

27.1 1.5 kW Normal-Duty Rating

The 1.5 kW normal-duty capacity makes this model suitable for a broad range of small industrial motors.

---

27.2 3.5 A Continuous Output

The 3.5 A output-current class provides considerably more capacity than the smaller 2.1 A model.

---

27.3 400 VAC Industrial Voltage Class

The drive is suitable for common 400 VAC-class three-phase industrial power systems.

---

27.4 Frame 1 Compact Construction

The Frame 1 design keeps the drive relatively compact.

---

27.5 Embedded I/O

Embedded I/O makes basic machine integration more straightforward.

---

27.6 Dynamic-Braking Capability

The internal DB transistor provides additional flexibility for applications requiring external dynamic braking.

---

27.7 EMC Filtering

The EMC-filtered configuration supports a properly designed industrial electrical installation.

---

27.8 No-HIM Configuration

The blank/no-HIM configuration is useful for automated machines where the PLC and HMI handle operation and monitoring.

---

27.9 Standardized PowerFlex 753 Platform

A major advantage is the ability to use the same general drive platform across different motor sizes.

---

27.10 Suitable for Repeated Machine Cycles

With appropriate application selection, the drive can provide repeatable acceleration and deceleration for production machinery.

---

28. Advantages for OEM Machine Builders

For an OEM, the 20F11RC3P5AA0NNNNN is more than simply a 1.5 kW variable-frequency drive.

It provides a standardized industrial drive architecture that can be used alongside other PowerFlex 753 models.

For example, a machine family might contain:

• 0.75 kW motor
• 1.5 kW motor
• 2.2 kW motor
• 4.0 kW motor
• 5.5 kW motor
• 7.5 kW motor

Using related PowerFlex 753 configurations can simplify the engineering process.

The same general product family can be used across different machine sizes.

---

29. Advantages for Maintenance Departments

Standardization can also be useful for maintenance teams.

Technicians can become familiar with:

• Drive parameters
• Fault behavior
• Terminal arrangements
• Programming concepts
• Commissioning procedures
• Diagnostic information

This can reduce the learning curve when servicing different machines.

It can also make spare-drive planning easier.

---

30. Advantages for Control-System Integration

The drive’s embedded I/O allows basic signals to be connected directly to the drive.

A typical control system could include:

PLC

↓

Start / Stop / Speed Reference

↓

PowerFlex 753

↓

1.5 kW Motor

The machine HMI can provide the operator interface.

The drive then acts as the motor-control layer.

---

31. Five Recommended Same-Series Models

The following models are useful PowerFlex 753 alternatives or neighboring ratings.

These models provide a useful progression through the smaller PowerFlex 753 drive range.

The 20F11RC3P5AA0NNNNN sits in the middle of this group.

The 20F11RC2P1AA0NNNNN is suitable for smaller motors.

The 20F11RC5P0AA0NNNNN provides a substantial increase in current capacity.

The 20F11RC8P7AA0NNNNN and 20F11RC011AA0NNNNN are appropriate when the motor size becomes significantly larger.

---

32. Same-Series Electrical Comparison

The exact heavy-duty selection should be matched to the applicable drive rating and application duty.

The most important point is that the drive should be sized according to the motor’s actual current and load requirements.

---

33. Five Closely Related JA Models

The following models are particularly useful when the installed common-mode capacitor jumper configuration is required.

These are especially useful when comparing the AA and JA configuration families.

---

34. AA vs. JA Version

The most important related-model comparison for 20F11RC3P5AA0NNNNN is the JA version.

The two models have the same basic motor-power class.

The main configuration distinction is the common-mode capacitor jumper.

For replacement applications, the AA and JA versions should therefore not be considered interchangeable without checking the electrical configuration.

---

35. Comparison with the Smaller 0.75 kW Model

The 3P5 model provides substantially more output-current capacity.

If a 0.75 kW motor has a higher current requirement because of its construction or application duty, the larger drive may sometimes provide a more suitable current margin, subject to the applicable rating requirements.

---

36. Comparison with the 2.2 kW Model

The 20F11RC5P0AA0NNNNN is the logical next step when the motor requires more than the 3.5 A class can provide.

---

37. Five Popular Same-Brand Models

These five models represent useful alternatives within the broader Allen-Bradley drive portfolio.

They are not necessarily direct replacements for the 20F11RC3P5AA0NNNNN.

Each has a different combination of power rating, physical size, control capability and application focus.

---

38. Same-Brand Model Comparison

The PowerFlex 753 is particularly attractive when the application benefits from a more comprehensive industrial drive platform.

---

39. Application Selection Guide

The final selection should always be based on actual motor current and application duty rather than horsepower alone.

---

40. Typical Machine Control Sequence

A machine using this drive might operate in the following way:

1. Start Command

The PLC sends a start command to the drive.

↓

2. Acceleration

The drive increases motor speed according to the programmed acceleration profile.

↓

3. Normal Operation

The motor operates at the required speed.

↓

4. Speed Adjustment

The controller can change the speed reference according to the production process.

↓

5. Deceleration

The drive reduces motor speed according to the programmed deceleration profile.

↓

6. Stop

The motor reaches zero speed and the machine completes the cycle.

This is one of the main practical differences between a VFD and a simple contactor-based motor starter.

---

41. Controlled Acceleration Benefits

Controlled acceleration can reduce mechanical shock.

For example, a conveyor does not have to jump immediately from zero speed to full speed.

Instead, the drive can gradually increase speed.

This can reduce stress on:

• Belts
• Chains
• Gearboxes
• Couplings
• Bearings
• Shafts
• Rollers

For machines with frequent starts and stops, this can be especially useful.

---

42. Controlled Deceleration Benefits

Controlled deceleration is useful when the machine must stop smoothly.

For example, a packaging machine may need to stop at a predictable point.

A controlled deceleration profile can make the machine behavior more repeatable.

Where the mechanical load generates substantial regenerative energy, the dynamic-braking circuit can provide additional stopping capability when correctly engineered.

---

43. Conveyor Application Example

Consider a 1.5 kW conveyor motor.

A simple starter can provide:

ON → OFF

The drive can provide:

Start → Accelerate → Run at 60% → Increase to 80% → Decelerate → Stop

This gives the production controller much more flexibility.

---

44. Feeder Application Example

A feeder motor can be controlled according to production demand.

For example:

30% Speed → Low Feed Rate

60% Speed → Medium Feed Rate

90% Speed → High Feed Rate

The PLC can change the reference according to product size, production speed or process conditions.

---

45. Pump Application Example

A small process pump may require variable flow.

The drive can adjust motor speed according to the required operating point.

This can provide better process control than continuously operating the motor at full speed.

For suitable centrifugal pumps, reduced speed can also reduce energy consumption.

---

46. Fan Application Example

A cooling fan may operate according to equipment temperature.

For example:

Low Temperature → Low Speed

Normal Temperature → Medium Speed

High Temperature → High Speed

The drive can receive the speed command from the control system.

---

47. Packaging Machine Example

A packaging machine may use the drive to control a product-feed roller.

A typical cycle can be:

Product Detection

↓

Motor Start

↓

Acceleration

↓

Product Transfer

↓

Deceleration

↓

Stop

↓

Next Product

The drive can make this process smoother and more repeatable.

---

48. Cabinet Design Considerations

Although the drive itself is approximately:

400.5 mm × 110 mm × 211 mm

the actual cabinet space requirement is larger.

Additional space should be reserved for:

• Incoming power
• Motor output wiring
• Control wiring
• Grounding
• Ventilation
• Maintenance
• Terminal access
• Cable bending radius

The narrow 110 mm body should not be interpreted as meaning that only 110 mm of cabinet width is required.

---

49. Thermal Management

Heat is an important consideration in VFD installations.

The drive should have adequate airflow.

The cabinet designer should avoid placing heat-sensitive equipment immediately above the drive without considering thermal effects.

If several drives are installed together, the total heat output should be considered.

The cabinet may require:

• Ventilation
• Forced cabinet cooling
• Heat exchanger
• Air conditioner

depending on ambient conditions and total heat load.

---

50. EMC and Wiring Considerations

The drive’s EMC filter provides an important part of the electrical-noise-control system.

The rest of the installation should also be designed properly.

Recommended design considerations include:

• Keep motor cables separated from sensitive signal cables.
• Use appropriate grounding.
• Minimize unnecessary cable loops.
• Maintain good cabinet bonding.
• Use suitable motor cable construction.
• Keep control wiring away from high-current switching paths.
• Terminate shields appropriately when required.

Good wiring practice can make a significant difference to machine reliability.

---

51. Maintenance Considerations

The drive should be inspected periodically.

Typical maintenance points include:

• Cooling fan
• Air passages
• Cabinet ventilation
• Dust accumulation
• Power connections
• Ground connections
• Motor cables
• Control wiring
• Braking components
• Fault history
• Operating temperature

The cooling system is especially important.

A dirty or obstructed cooling path can increase operating temperature and reduce long-term reliability.

---

52. Spare Drive Strategy

For a production facility using several PowerFlex 753 drives, keeping compatible spare units can simplify maintenance.

A typical spare strategy could include several drive ratings.

The exact spare strategy should consider the machines installed at the site and the required AA/JA configuration.

---

53. Product Selection Checklist

Before using 20F11RC3P5AA0NNNNN, check the following:

---

54. Detailed Mechanical Specification

---

55. Detailed Functional Specification

---

56. Complete Technical Summary

---

57. Overall Advantages at a Glance

---

58. Final Product Assessment

The Allen-Bradley 20F11RC3P5AA0NNNNN is a PowerFlex 753 400 VAC three-phase AC drive designed for small industrial motor-control applications.

Its primary normal-duty rating is 3.5 A and 1.5 kW, placing it in the approximately 2 HP motor class.

For heavy-duty applications, the applicable power rating is approximately 1.1 kW, so the actual machine duty should be evaluated carefully before selecting the drive.

The drive uses a Frame 1 construction with approximate dimensions of 400.5 mm high × 110 mm wide × 211 mm deep and an approximate weight of 6.0 kg.

It uses forced-air cooling and an IP20 / NEMA/UL open-type enclosure, so it is intended to be installed inside a suitable electrical cabinet.

The drive includes embedded I/O, which makes it practical for machine-control applications where basic start, stop, speed-reference and status signals need to be integrated into the control system.

The internal dynamic-braking transistor is another useful feature.

When the application requires more aggressive deceleration, an appropriately selected external braking resistor can be connected to the braking circuit.

The AA configuration is particularly important for this exact catalog number because the common-mode capacitor jumper is removed.

The closely related 20F11RC3P5JA0NNNNN uses the corresponding installed jumper configuration.

For replacement work, this distinction should be checked carefully rather than selecting a drive solely on the basis of 1.5 kW power.

The drive is particularly suitable for small conveyors, feeders, rollers, packaging machines, small pumps, fans, blowers, material-transfer systems and auxiliary industrial machinery.

It is also a useful choice for OEM machine builders who want to standardize different motor sizes around the PowerFlex 753 family.

For example, a machine could use 20F11RC2P1AA0NNNNN for a smaller 0.75 kW motor, 20F11RC3P5AA0NNNNN for a 1.5 kW motor, and larger PowerFlex 753 models for 2.2 kW, 4.0 kW, 5.5 kW or 7.5 kW motors.

This kind of standardization can simplify electrical engineering, commissioning, troubleshooting, maintenance and spare-parts planning.

In practical terms, the 20F11RC3P5AA0NNNNN can be summarized as a 400 VAC, three-phase, 3.5 A, 1.5 kW normal-duty, approximately 1.1 kW heavy-duty, Frame 1 PowerFlex 753 AC drive with embedded I/O, forced-air cooling, IP20 open-type construction, EMC filtering, removed common-mode capacitor jumper, internal dynamic-braking transistor, AC input with precharge, DC terminals and blank/no-HIM configuration.

Its strongest advantages are compact industrial construction, 1.5 kW motor-control capacity, variable-speed operation, embedded I/O, dynamic-braking capability, EMC filtering, flexible machine integration and compatibility with the wider PowerFlex 753 platform.

For a 400 VAC three-phase industrial machine using a motor in the approximately 1.5 kW normal-duty class, this model is a particularly useful choice when the application needs more than simple ON/OFF motor control and benefits from controlled acceleration, controlled deceleration and adjustable operating speed.