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Allen-Bradley 20F11RC8P7AA0NNNNN — PowerFlex 753 AC Drive Detailed Product Guide

The Allen-Bradley 20F11RC8P7AA0NNNNN is a PowerFlex 753 AC Drive designed for three-phase industrial motor control applications.

This model belongs to the 400 VAC class, uses a Frame 1 mechanical package, and provides an 8.7 A nominal output-current class with a 4.0 kW Normal-Duty rating and approximately 2.2 kW Heavy-Duty rating.

It is an air-cooled, IP20/NEMA/UL Open Type industrial variable-frequency drive with embedded I/O, EMC filtering, a dynamic-braking transistor, AC input with precharge, DC terminals, and the AA configuration with the CM jumper removed.

The combination of relatively high output capacity, compact Frame 1 construction, embedded I/O and dynamic-braking capability makes this drive particularly suitable for conveyors, feeders, pumps, fans, packaging machinery, material-handling equipment and other industrial machines requiring adjustable motor speed.

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1. Product Identification

The dimensions and weight above correspond to the Frame 1 IP20/NEMA/UL Open Type package. The approximate Frame 1 dimensions are 400.5 × 110 × 211 mm, with an approximate drive weight of 6.0 kg.

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2. Brand and Product Series

The PowerFlex 753 is an industrial variable-frequency-drive platform designed for general-purpose machine and industrial motor-control applications.

The series is particularly useful where a machine needs more than basic speed adjustment. Its architecture supports embedded I/O, optional expansion capabilities, dynamic braking and integration into larger automation systems.

The 20F11RC8P7AA0NNNNN is positioned in the smaller physical frame range of the series while providing a substantially higher power rating than the 2.2 kW-class models.

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3. Product Overview

The 20F11RC8P7AA0NNNNN converts incoming three-phase AC power into a controlled three-phase output for an AC motor.

The main purpose of the drive is to control motor speed and operating behavior.

Instead of allowing the motor to operate only at the fixed frequency of the incoming power supply, the drive can vary the output frequency and voltage according to the programmed operating requirements.

A simplified system can be represented as:

Three-Phase AC Power

↓

20F11RC8P7AA0NNNNN PowerFlex 753 Drive

↓

Three-Phase AC Motor

↓

Gearbox / Conveyor / Pump / Fan / Machine Mechanism

The drive can receive commands from a machine control system and provide controlled acceleration, controlled deceleration, adjustable speed and, where properly configured, dynamic braking.

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4. Detailed Electrical Parameters

The 8.7 A output-current rating is one of the most important specifications when matching this drive to a motor.

For a real installation, the motor nameplate current should be compared with the drive’s applicable duty rating rather than selecting the drive from motor horsepower alone.

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5. Normal-Duty Rating

The drive is rated at approximately 4.0 kW Normal Duty.

Normal-duty applications generally have a relatively conventional torque profile and do not continuously subject the drive to severe overload conditions.

Typical examples include:

• Conveyor systems
• Fans
• Centrifugal pumps
• Blowers
• Rollers
• Feeders
• Packaging machinery
• Material-transfer equipment
• General-purpose machine drives

The 4.0 kW rating makes this model particularly useful for industrial machines that are larger than the 2.2 kW class but still need a compact Frame 1 drive.

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6. Heavy-Duty Rating

The Heavy-Duty power class is approximately 2.2 kW.

Heavy-duty operation should be considered when the application has:

• High starting torque
• Frequent acceleration
• Frequent stopping
• High mechanical inertia
• Shock loading
• High continuous torque
• Severe low-speed operation
• Repeated reversing
• Demanding production cycles

The important point is that the 4.0 kW Normal-Duty rating and approximately 2.2 kW Heavy-Duty rating should not be treated as interchangeable.

The appropriate rating depends on how the motor and machine actually operate.

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7. 400 VAC Three-Phase Design

The 20F11RC8P7AA0NNNNN belongs to the 400 VAC class.

It is therefore suitable for industrial electrical systems in the general:

380–480 VAC, three-phase

range.

This covers many common industrial supply systems, including 400 VAC and 415 VAC installations.

Before installation, the actual supply voltage should always be checked against the drive’s applicable electrical requirements.

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8. Frame 1 Mechanical Design

One of the notable characteristics of this model is its Frame 1 package.

The approximate physical dimensions are:

Height: 400.5 mm

Width: 110 mm

Depth: 211 mm

Weight: approximately 6.0 kg

This is a relatively narrow package for a 4.0 kW-class industrial drive.

The narrow 110 mm width can be useful when multiple drives are installed in the same electrical cabinet.

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9. Dimensions and Weight

The 6.0 kg figure is the approximate drive weight.

Packaging materials, cables, optional modules, external braking components and other accessories are not included in this approximate drive-body weight.

When designing a cabinet, the 400.5 × 110 × 211 mm dimensions should not be treated as the complete cabinet space requirement.

Additional clearance is normally required for:

• Power terminals
• Motor cables
• Control cables
• Cable bending radius
• Ventilation
• Maintenance access
• Grounding
• Air circulation

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10. IP20 / NEMA/UL Open Type

The drive uses an IP20 / NEMA/UL Open Type enclosure arrangement.

This means that it is normally installed inside an appropriate electrical cabinet or enclosure.

It is not intended to be treated as a fully weatherproof outdoor drive.

The surrounding enclosure should protect the drive against environmental conditions such as:

• Water
• Oil
• Conductive dust
• Metal particles
• Excessive humidity
• Chemical contamination
• Physical impact

The actual cabinet rating should be selected according to the installation environment.

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11. Forced-Air Cooling

The 20F11RC8P7AA0NNNNN uses forced-air cooling.

The power electronics generate heat during operation, particularly when the drive is heavily loaded.

The cooling system moves air through the drive and transfers heat away from the power components.

Good cabinet ventilation is therefore an important part of installation.

The cabinet design should consider:

• Ambient temperature
• Internal cabinet temperature
• Airflow
• Drive loading
• Nearby heat-producing equipment
• Dust accumulation
• Cooling-fan condition
• Cabinet ventilation

A correctly sized drive can still suffer premature failure if it is installed in an excessively hot or poorly ventilated enclosure.

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12. EMC Filtering

This model uses a filtered EMC configuration.

EMC stands for electromagnetic compatibility.

Variable-frequency drives use high-speed electronic switching to control the motor.

That switching can create high-frequency electrical noise.

Proper EMC installation therefore requires attention to:

• Grounding
• Cable routing
• Shielding
• Motor cable length
• Separation between power and control cables
• Cabinet bonding
• Filter configuration

The filtered configuration can be useful in industrial environments where electromagnetic compatibility is important.

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13. CM Jumper Removed

A key catalog-number characteristic of the 20F11RC8P7AA0NNNNN is:

CM jumper removed

This is represented by the AA configuration in the catalog number.

For comparison, the corresponding JA configuration uses the CM jumper installed.

This is not merely a cosmetic catalog-number difference.

The common-mode capacitor configuration can affect the drive’s relationship with the grounding system and EMC behavior.

When replacing an existing drive, the exact catalog-number configuration should therefore be checked carefully.

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14. Dynamic Braking

The model includes a DB transistor.

Dynamic braking is particularly useful when a motor needs to decelerate quickly.

During motor deceleration, mechanical energy can be returned through the motor into the drive’s DC bus.

This can cause DC-bus voltage to increase.

A properly selected external braking resistor can dissipate the excess energy through the drive’s dynamic-braking transistor.

Dynamic braking can therefore be useful for:

• Conveyors
• Rollers
• High-inertia machinery
• Feeders
• Packaging machines
• Material-handling equipment
• Rapid-stop applications
• Frequent acceleration/deceleration applications

The braking resistor itself is selected according to the required braking energy and duty cycle.

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15. Embedded I/O

The PowerFlex 753 platform includes embedded I/O.

This is a major practical advantage in machine-control applications.

It allows the drive to interface with machine control signals without requiring every basic function to be handled by separate external interface hardware.

Typical functions can include:

• Start
• Stop
• Enable
• Forward
• Reverse
• Fault reset
• Speed reference
• Run status
• Fault status
• Analog signals
• Machine interlocks

For compact machines, this can reduce wiring complexity and panel component count.

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16. Blank / No HIM Configuration

The catalog number specifies a blank/no-HIM configuration.

HIM means Human Interface Module.

A local keypad is therefore not included as part of this configuration.

This can be an advantage in automated machinery where the operator normally works through a central HMI.

A typical architecture might be:

Machine HMI

↓

PLC / Controller

↓

PowerFlex 753

↓

Motor

This keeps the machine operator interface centralized rather than requiring a separate keypad on every motor drive.

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17. AC Input With Precharge

The drive uses AC input with precharge.

Precharge is part of the drive’s power-management architecture and controls the initial charging of the DC bus.

The model also includes DC terminals.

These characteristics are useful when the drive is integrated into industrial power architectures where DC-bus considerations are important.

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18. Product Introduction in Practical Terms

In practical terms, the 20F11RC8P7AA0NNNNN can be thought of as a compact industrial motor controller for approximately 4.0 kW normal-duty applications.

It takes fixed-frequency industrial AC power and provides a controlled electrical output to the motor.

This enables the machine designer to determine:

• How quickly the motor starts
• How quickly the motor stops
• How fast the motor runs
• Whether the motor runs forward or reverse
• How the motor responds to process commands
• Whether dynamic braking is required

This makes the drive much more versatile than a basic motor starter.

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19. Main Product Advantages

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20. Industrial Applications

The 20F11RC8P7AA0NNNNN is suitable for a wide range of industrial motor-control applications.

Typical applications include:

• Conveyor systems
• Packaging machinery
• Material handling
• Feeders
• Pumps
• Fans
• Blowers
• Rollers
• Production machinery
• Process equipment
• Machine tools
• Auxiliary machine axes
• Product-transfer systems

Its 4.0 kW normal-duty rating makes it particularly useful for medium-sized machine functions.

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21. Conveyor Applications

Conveyors are one of the most natural applications for a variable-frequency drive.

A conveyor may need different operating speeds during:

• Machine setup
• Product changeover
• Normal production
• Slow production
• High-throughput operation

The drive can adjust the motor speed without requiring a mechanical speed change.

Controlled acceleration also helps reduce sudden loading on:

• Belts
• Chains
• Gearboxes
• Couplings
• Bearings
• Conveyor frames

For conveyors with significant inertia, dynamic braking can be especially useful.

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22. Packaging Machinery

Packaging machinery often needs accurate and repeatable speed control.

Potential applications include:

• Product conveyors
• Feed rollers
• Transfer rollers
• Packaging conveyors
• Product alignment
• Film handling
• Auxiliary mechanisms

The drive can help the machine operate at different production speeds.

For example, the same machine could run slowly during setup and increase speed during normal production.

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23. Feeder Applications

Feeders often require controlled speed.

If a feeder operates too quickly, it can create:

• Product accumulation
• Jamming
• Poor product spacing
• Excessive mechanical impact

If it operates too slowly, production throughput can suffer.

A variable-frequency drive provides a convenient way to adjust feeder speed according to the process requirement.

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24. Pump Applications

The drive can be used with suitable three-phase pump motors.

Typical applications may include:

• Process-water pumps
• Cooling pumps
• Circulation pumps
• Utility pumps
• Fluid-transfer systems

For appropriate variable-torque pump applications, motor speed can be reduced when full flow is unnecessary.

This can improve process control and potentially reduce energy consumption.

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25. Fan and Blower Applications

Fans and blowers frequently operate at variable demand.

Running the motor continuously at full speed is not always necessary.

The drive can provide:

Low Demand → Low Speed

Medium Demand → Medium Speed

High Demand → High Speed

This can provide better airflow control and may reduce energy consumption in suitable applications.

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26. Material-Handling Applications

Material-handling equipment often benefits from controlled acceleration and deceleration.

Potential applications include:

• Transfer conveyors
• Sorting conveyors
• Feed mechanisms
• Rollers
• Product positioning
• Material-transfer equipment

Where the load has substantial inertia, the dynamic-braking capability can also be useful.

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27. Roller and Winder-Type Applications

The drive can be considered for suitable roller systems where motor speed needs to be adjusted.

Examples include:

• Conveyor rollers
• Transfer rollers
• Packaging rollers
• Processing rollers
• Material-feed rollers

Where stopping performance is important, the dynamic-braking transistor can be used with a properly engineered braking system.

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28. OEM Machine Builder Advantages

For an OEM machine builder, one of the biggest advantages of using a PowerFlex 753 platform is standardization.

A manufacturer may have several machines requiring different motor sizes.

For example:

Using one drive family across different machine sizes can simplify:

• Electrical drawings
• Programming
• Commissioning
• Troubleshooting
• Spare-parts management
• Technician training
• Machine documentation

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29. Five Recommended Same-Series or Closely Related Models

The following models are particularly useful when selecting an alternative or neighboring PowerFlex 753 rating.

The 20F11RC8P7JA0NNNNN is particularly important because it is the closely related CM-jumper-installed version of the subject AA configuration.

The 20F11RC5P0JA0NNNNN is a useful lower-capacity alternative.

The 20F11RC011JA0NNNNN and 20F11RC015JA0NNNNN provide additional capacity while maintaining the general Frame 1 platform.

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30. Same-Series Capacity Comparison

This group shows how the PowerFlex 753 platform can be scaled without changing to an entirely different drive family.

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31. Five Larger Related PowerFlex 753 Models

For applications that exceed the Frame 1 range, larger PowerFlex 753 configurations can be considered.

The dimensions and weights in this table are approximate frame-level values.

As drive power increases, the physical installation requirements become increasingly important.

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32. Five Popular Same-Brand Models

The following five models are useful alternatives or related products from the same brand family.

These models serve different application levels.

The PowerFlex 525 is generally attractive for compact machine applications.

The PowerFlex 40 is a simpler, smaller drive platform.

The PowerFlex 753 is well suited to more flexible industrial machine applications.

The PowerFlex 755 is appropriate when more advanced drive functionality and larger-scale motor control are required.

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33. PowerFlex 525 Alternative

The PowerFlex 525 can be a practical alternative when the machine requires a more compact drive architecture.

It is particularly attractive for:

• Compact machinery
• Small conveyors
• Pumps
• Fans
• OEM equipment
• General machine automation

Compared with the PowerFlex 753, the PowerFlex 525 is often considered when cabinet space, simplicity and compact machine integration are major priorities.

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34. PowerFlex 40 Alternative

The PowerFlex 40 family can be considered for relatively straightforward applications.

Typical applications include:

• Small conveyors
• Fans
• Pumps
• Feeders
• Basic machine functions

It can be a practical choice where the application does not require the broader architecture of the PowerFlex 753.

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35. PowerFlex 755 Alternative

The PowerFlex 755 is a higher-end related drive platform.

It can be considered for applications requiring more advanced motor-control functions.

Typical applications include:

• Large industrial machines
• Complex production systems
• High-performance motor control
• Large conveyors
• Process machinery
• Advanced speed and torque applications

For a straightforward 4.0 kW machine axis, the PowerFlex 753 is usually a more natural fit.

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36. Application Selection Guide

Actual selection should always be based on the motor nameplate current and the actual application duty.

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37. Motor Selection Considerations

The most important motor parameters include:

For this model, the 8.7 A output rating should receive particular attention.

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38. Controlled Acceleration

One of the most useful benefits of a variable-frequency drive is controlled acceleration.

A motor does not have to jump immediately from zero speed to full speed.

Instead, the drive can increase the output frequency according to an acceleration ramp.

This can reduce mechanical stress on:

• Gearboxes
• Couplings
• Bearings
• Belts
• Chains
• Shafts
• Conveyor structures

It can also help prevent products from being thrown or displaced during machine startup.

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39. Controlled Deceleration

The drive can also control how quickly the motor stops.

This is important for production machinery where an abrupt stop could create:

• Mechanical shock
• Product damage
• Belt movement
• Gearbox stress
• Excessive vibration

For applications requiring more rapid stopping, the dynamic-braking transistor can be combined with an appropriately selected external braking resistor.

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40. Dynamic Braking Example

Consider a conveyor carrying a heavy load.

When the drive commands the conveyor to stop, the moving load still has kinetic energy.

The motor can return part of that energy to the drive’s DC bus.

The DC-bus voltage can therefore rise during rapid deceleration.

The dynamic-braking circuit can direct this energy to an external braking resistor, where the energy is dissipated as heat.

This can improve stopping performance in applications with:

• Heavy loads
• High inertia
• Frequent stopping
• Rapid deceleration
• Short cycle times

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41. Energy Efficiency

Variable-frequency drives can provide significant energy-management benefits in appropriate applications.

The clearest examples are often:

• Fans
• Blowers
• Centrifugal pumps

When full motor speed is unnecessary, reducing motor speed can reduce power consumption.

Instead of running a pump or fan continuously at full speed, the drive can adjust motor speed according to process demand.

The actual energy savings depend on the load characteristics, operating schedule and system design.

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42. Cabinet Design

The drive itself measures approximately:

400.5 mm high × 110 mm wide × 211 mm deep

However, a practical electrical cabinet should provide additional room.

The cabinet designer should consider:

• Drive clearance
• Airflow
• Cable routing
• Terminal access
• Motor cable bending radius
• Control cable separation
• Grounding
• Heat dissipation
• Maintenance access

A cabinet that physically fits the drive may still be unsuitable if there is insufficient airflow.

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43. Cooling and Environmental Considerations

The cooling system depends on adequate airflow.

The installation should therefore avoid:

• Blocked ventilation
• Excessive dust
• High cabinet temperature
• Recirculation of hot air
• Direct contamination of cooling passages

Periodic maintenance should include inspection of:

• Cooling fan
• Air passages
• Cabinet filters
• Dust accumulation
• Electrical terminals
• Motor cables

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44. EMC Installation

Because the drive contains high-speed switching electronics, EMC installation should be treated as part of the complete system design.

Important considerations include:

Power cable routing

Power and sensitive control cables should be routed appropriately.

Grounding

The drive, motor and cabinet should have suitable grounding arrangements.

Motor cable

The motor cable should be installed according to the drive and machine’s EMC requirements.

Cable separation

Sensitive signal wiring should not unnecessarily run parallel to high-power motor wiring.

Cabinet bonding

Metal cabinet components should be properly bonded where required.

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45. Maintenance Advantages

Using the PowerFlex 753 family across multiple machines can simplify maintenance.

Maintenance personnel can become familiar with:

• Drive parameters
• Fault handling
• I/O configuration
• Cooling requirements
• Braking configuration
• Motor setup
• Installation procedures

This standardization can make troubleshooting faster.

It can also simplify spare-parts planning.

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46. Typical Troubleshooting Checklist

A drive fault does not necessarily mean the drive itself has failed.

The underlying cause may be:

• Motor overload
• Mechanical jam
• Motor-cable problem
• Power-supply issue
• Excessive temperature
• Incorrect parameters
• Poor grounding
• Incorrect braking configuration

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47. Spare-Part Considerations

When maintaining an industrial machine, it is important to record the complete catalog number rather than simply recording:

“PowerFlex 753, 4 kW”

The exact catalog number matters.

The difference between:

20F11RC8P7AA0NNNNN

and

20F11RC8P7JA0NNNNN

includes the CM-jumper configuration.

A spare drive should therefore be checked against:

• Voltage
• Current
• Power rating
• Frame
• Enclosure
• Filtering
• CM jumper configuration
• Braking configuration
• HIM configuration
• Option modules

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48. AA and JA Configuration Comparison

This comparison is especially relevant for the subject model.

The two configurations are therefore very similar in basic power rating and mechanical size, but the CM jumper configuration is different.

That distinction is important when selecting a replacement.

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49. Product Selection Checklist

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50. Recommended Same-Series Power Progression

For applications using different motor sizes, the following progression is useful.

This gives an OEM or industrial facility a convenient way to standardize motor-drive selection around one product family.

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51. Why This Model Is Attractive for Industrial Machinery

The 20F11RC8P7AA0NNNNN has a useful balance between power, physical size and functionality.

Its 4.0 kW normal-duty capacity is sufficient for many medium-sized industrial machine motors.

At the same time, the Frame 1 enclosure keeps the drive relatively compact.

The approximate 110 mm width can be especially valuable in cabinets where multiple drives must be installed.

The embedded I/O reduces the need for additional interface hardware.

The dynamic-braking transistor provides an option for applications requiring faster deceleration.

The filtered EMC configuration is useful where electrical-noise control is important.

The no-HIM configuration makes sense for machines that are controlled centrally through a PLC and HMI.

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52. Overall Technical Summary

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53. Final Product Evaluation

The Allen-Bradley 20F11RC8P7AA0NNNNN is a strong choice for industrial applications requiring a 400 VAC, three-phase variable-frequency drive in the 4.0 kW normal-duty class.

Its 8.7 A output-current rating gives it considerably more capacity than the smaller 2.2 kW-class PowerFlex 753 models, while its Frame 1 construction keeps the physical package relatively compact.

The approximately 400.5 mm height, 110 mm width, 211 mm depth and 6.0 kg weight make it practical for installation in industrial electrical cabinets where space is limited.

The drive’s embedded I/O is useful for machine integration, while its DB transistor provides an important advantage for applications requiring dynamic braking.

Its filtered EMC configuration can also be useful in electrically busy industrial environments, provided that the complete installation is designed correctly.

The AA configuration means the CM jumper is removed, which is an important catalog-number characteristic and should be preserved when selecting a replacement for an existing installation.

From an application standpoint, the model is particularly well suited to medium-sized conveyors, packaging equipment, feeders, pumps, fans, blowers, rollers and general industrial machinery.

From a machine-builder perspective, another major advantage is the ability to remain within the PowerFlex 753 family when motor size changes. A machine platform can therefore use smaller models such as 20F11RC3P5JA0NNNNN, the subject 20F11RC8P7AA0NNNNN, and larger models such as 20F11RC011JA0NNNNN or 20F11RC015JA0NNNNN without completely changing the overall drive platform.

Overall, the 20F11RC8P7AA0NNNNN can be summarized as a 400 VAC, three-phase, 8.7 A, 4.0 kW Normal-Duty / approximately 2.2 kW Heavy-Duty, Frame 1 PowerFlex 753 industrial AC drive featuring forced-air cooling, IP20/NEMA/UL Open Type construction, embedded I/O, filtered EMC configuration, CM jumper removed, dynamic-braking transistor, AC input with precharge, DC terminals and a blank/no-HIM configuration.