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Allen-Bradley 20F11NE3P9AA0NNNNN — Detailed Product Specifications, Introduction, Applications, Advantages and Related Models

1. Product Overview

The 20F11NE3P9AA0NNNNN is an industrial AC variable frequency drive from the PowerFlex 753 series. It is designed for three-phase AC motor speed control in industrial machinery, automated production equipment, material-handling systems, pumps, fans, conveyors and other applications where controlled motor operation is required.

This model is rated for a 600 VAC three-phase power system and provides a 3.9 A normal-duty continuous output current. Its normal-duty motor rating is 3 HP, while its heavy-duty rating is 2 HP.

The drive uses a Frame 3 construction and an air-cooled, open-type enclosure. It includes embedded I/O, EMC filtering, AC input with precharge and DC terminals, an internal dynamic-braking transistor and a blank configuration without a standard HIM.

One particularly important configuration detail is the AA designation, which corresponds to a configuration with the common-mode capacitor jumper removed. This differentiates it from closely related JA-configured units, where the common-mode capacitor jumper is installed.

For equipment designers, maintenance departments and replacement applications, this distinction should not be ignored. Two drives can have the same voltage, current and horsepower ratings while still having different grounding-related configurations.

The 20F11NE3P9AA0NNNNN is therefore best understood as a 3 HP-class, 600 VAC, three-phase industrial variable frequency drive intended for controlled operation of appropriately rated AC motors.

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2. Product Identification

Item	Specification
Model	20F11NE3P9AA0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 753
Product Type	AC Variable Frequency Drive
Drive Type	Air-Cooled AC Drive
Voltage Class	600 VAC
Input Phase	3-phase
Output Phase	3-phase
Normal-Duty Continuous Output Current	3.9 A
Heavy-Duty Continuous Output Current	2.7 A
Normal-Duty Motor Rating	3 HP
Heavy-Duty Motor Rating	2 HP
Normal-Duty Power	Approximately 2.2 kW
Heavy-Duty Power	Approximately 1.5 kW
Frame Size	Frame 3
Enclosure	Open Type
Enclosure Rating	IP20 / NEMA Type Open configuration
Cooling Method	Air cooled
Input Type	AC input with precharge and DC terminals
EMC Filtering	Filtered
Common-Mode Capacitor	Jumper removed
Dynamic Braking	Internal DB transistor
Braking Resistor	External resistor when required
Embedded I/O	Yes
HIM	Blank / No HIM
Mounting	Panel / cabinet mounting
Approx. Dimensions	454 × 190 × 212 mm (H × W × D)
Approx. Weight	4.54 kg
Typical Application	Industrial motor speed control
Typical Motor Size	3 HP normal duty / 2 HP heavy duty

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3. Detailed Technical Parameters

Parameter	20F11NE3P9AA0NNNNN
Catalog Number	20F11NE3P9AA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 753
Input Voltage	600 VAC
Input Phase	3-phase
Output Phase	3-phase
Continuous Output Current, Normal Duty	3.9 A
Continuous Output Current, Heavy Duty	2.7 A
1-Minute Current, Normal Duty	4.3 A
1-Minute Current, Heavy Duty	4.1 A
3-Second Current, Normal Duty	5.9 A
3-Second Current, Heavy Duty	7.3 A
Normal-Duty Motor Rating	3 HP
Heavy-Duty Motor Rating	2 HP
Normal-Duty Motor Rating	Approx. 2.2 kW
Heavy-Duty Motor Rating	Approx. 1.5 kW
DC Bus Voltage Class	Up to approximately 810 VDC
Frame Size	Frame 3
Enclosure	Open Type
Enclosure Protection	IP20
Cooling	Forced-air / air cooled
Input Configuration	AC input with precharge
DC Bus Terminals	Yes
EMC Filter	Yes
CM Capacitor Jumper	Removed
Dynamic Braking Transistor	Yes
Internal Braking Resistor	No
External Braking Resistor	Applicable when braking is required
Embedded I/O	Yes
HIM	Not included
Operator Display	None in standard blank configuration
Approx. Efficiency	Up to approximately 97.5% under rated conditions
Approx. Height	454 mm
Approx. Width	190 mm
Approx. Depth	212 mm
Approx. Weight	4.54 kg
Cooling Airflow	Required
Installation	Electrical cabinet / control panel
Typical Duty	Normal-duty / heavy-duty industrial motor applications

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4. Product Series

The 20F11NE3P9AA0NNNNN belongs to the PowerFlex 753 series.

The PowerFlex 753 family is designed as an industrial AC drive platform for machine builders, system integrators and industrial automation applications.

Compared with very basic compact variable frequency drives, this family provides a broader industrial architecture with embedded I/O, expansion capability, programmable motor-control functions and integration options for automated machinery.

The series covers a relatively wide range of motor sizes.

For the 600 VAC three-phase range, the Frame 3 models progress through several current and horsepower ratings, allowing the same general drive architecture to be used for motors of different sizes.

This makes the series useful for equipment manufacturers who want to maintain a common drive platform across several machine variants.

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5. Brand Information

Item	Information
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 753
Product Category	AC Variable Frequency Drive
Main Function	Three-phase AC motor speed control
Intended Market	Industrial automation
Typical Installation	Electrical control cabinet
Typical Users	OEMs, system integrators, maintenance departments and industrial automation engineers

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6. Understanding the 3.9 A Rating

The 3.9 A continuous normal-duty output rating is one of the most important specifications of this drive.

The drive can provide approximately 3.9 A continuously under its normal-duty rating.

For normal-duty applications, the corresponding motor rating is approximately 3 HP.

For heavy-duty operation, the continuous current rating is approximately 2.7 A, corresponding to a 2 HP motor rating.

This difference is important because motor selection should not be based only on horsepower.

A motor may have a particular horsepower rating but still have a different nameplate current depending on its design, efficiency, voltage and operating characteristics.

The correct engineering procedure is therefore to compare:

• Motor rated current
• Motor voltage
• Motor horsepower
• Application duty
• Overload requirement
• Acceleration requirement
• Deceleration requirement
• Ambient conditions

A drive that is correctly selected by current and duty can provide substantially better operating reliability than one selected only from a nominal horsepower number.

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7. Normal-Duty and Heavy-Duty Operation

The drive has two useful current ratings.

Rating	Continuous Current	Motor Rating
Normal Duty	3.9 A	3 HP
Heavy Duty	2.7 A	2 HP

Normal-duty applications generally have less severe overload requirements.

Heavy-duty applications can involve higher torque requirements, frequent acceleration, high inertia, demanding starting conditions or other operating characteristics that require greater overload capability.

For example, a relatively lightly loaded conveyor may be suitable for the normal-duty rating.

A machine with frequent acceleration and high mechanical resistance may need to be evaluated using the heavy-duty rating instead.

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8. Short-Term Overload Capability

The drive also has higher short-duration current capability.

Operating Condition	Normal Duty	Heavy Duty
Continuous	3.9 A	2.7 A
1 Minute	4.3 A	4.1 A
3 Seconds	5.9 A	7.3 A

The short-term current capability is useful during acceleration and other transient operating conditions.

However, it should not be interpreted as a continuous operating rating.

The application should be evaluated according to its actual duty cycle and acceleration requirements.

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9. 600 VAC Three-Phase Configuration

The 20F11NE3P9AA0NNNNN is a 600 VAC three-phase drive.

This makes it different from many smaller 200–240 VAC or 380–480 VAC compact drives.

The 600 VAC rating can be particularly useful in industrial facilities using higher-voltage three-phase motor systems.

The power system, motor nameplate and drive input requirements should all be checked before installation.

The motor output voltage should also be compatible with the motor’s rated voltage.

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10. Frame 3 Construction

The drive uses a Frame 3 mechanical configuration.

Frame size determines much more than the outside dimensions.

It is related to:

• Power rating
• Current capacity
• Heat dissipation
• Terminal arrangement
• Cooling requirements
• Mounting points
• Cabinet space
• Service access

The Frame 3 architecture allows several different 600 VAC drive ratings to share a similar mechanical platform.

This is particularly useful for machine builders because the same general panel design can often accommodate different drive ratings within the same frame family.

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11. Dimensions and Weight

Mechanical Parameter	Specification
Model	20F11NE3P9AA0NNNNN
Height	454 mm
Width	190 mm
Depth	212 mm
Approx. Weight	4.54 kg
Enclosure	Open Type
Protection	IP20
Mounting	Panel / cabinet
Cooling	Air cooled

The approximate dimensions are useful for preliminary cabinet planning.

The actual installation should also account for:

• Cable entry
• Terminal access
• Ventilation
• Maintenance clearance
• Heat dissipation
• Door clearance
• Wiring bend radius
• Adjacent equipment

The stated 4.54 kg is the approximate drive weight rather than the shipping weight.

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12. Air-Cooled Design

The 20F11NE3P9AA0NNNNN uses an air-cooled design.

Power electronics generate heat during operation, and this heat must be removed from the drive.

For this reason, cabinet design is an important part of the installation.

A suitable enclosure should provide adequate ventilation and should prevent excessive accumulation of heat around the drive.

The following should be considered:

• Ambient temperature
• Cabinet temperature
• Airflow direction
• Drive heat loss
• Other heat-producing devices
• Fan condition
• Filter condition
• Dust accumulation
• Minimum installation clearances

A poorly ventilated enclosure can raise the operating temperature of the drive and reduce the reliability of the overall system.

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13. Open-Type Enclosure

The drive uses an open-type enclosure.

This construction is intended to be incorporated into a suitable electrical control cabinet.

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

The final enclosure should provide appropriate protection for the installation environment.

For example, applications with:

• Metal dust
• Water spray
• Oil mist
• Chemical vapors
• High humidity
• Excessive dust
• Outdoor exposure

may require additional enclosure and environmental protection.

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14. EMC Filtering

The 20F11NE3P9AA0NNNNN has an EMC-filtered configuration.

Variable frequency drives use high-frequency switching to control motor voltage and frequency.

This switching is essential to the drive’s operation but can also produce electrical noise.

The integrated filtering is therefore useful for reducing certain conducted electromagnetic effects.

However, good installation practices remain important.

A complete EMC installation should consider:

• Grounding
• Bonding
• Shielding
• Motor cable construction
• Cable length
• Power and signal cable separation
• Control cabinet layout
• Proper termination

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15. Common-Mode Capacitor Jumper Removed

The AA configuration indicates that the common-mode capacitor jumper is removed.

This is a significant configuration detail.

The closely related JA version has the common-mode capacitor jumper installed.

Model	CM Capacitor Jumper
20F11NE3P9AA0NNNNN	Removed
20F11NE3P9JA0NNNNN	Installed

The two models otherwise share many major characteristics, including:

• 600 VAC
• Three-phase operation
• 3.9 A normal-duty current
• 3 HP normal-duty rating
• 2 HP heavy-duty rating
• Frame 3
• Air cooling
• EMC filtering
• Dynamic-braking transistor
• Embedded I/O
• Blank/no-HIM configuration

The grounding arrangement should therefore be considered when choosing between the two configurations.

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16. Dynamic-Braking Transistor

The drive includes an internal dynamic-braking transistor.

This is valuable in applications where the motor must decelerate quickly or where the mechanical load contains significant rotational energy.

During deceleration, the motor can return energy to the drive’s DC bus.

A properly selected external braking resistor can dissipate this energy.

Typical applications include:

• High-inertia conveyors
• Rapid-cycle machinery
• Material-handling equipment
• Rotary machines
• Packaging machinery
• Machines requiring controlled stopping

The internal braking transistor should not be confused with an internal braking resistor.

The braking resistor itself is external.

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17. Embedded I/O

The drive includes embedded I/O.

This is useful because many basic machine-control signals can be connected directly to the drive.

Depending on the application, typical control functions can include:

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

This can reduce the amount of additional interface hardware required for straightforward machinery.

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18. Blank / No HIM Configuration

The 20F11NE3P9AA0NNNNN is configured without a standard Human Interface Module.

A HIM can provide a local interface for:

• Parameter programming
• Status monitoring
• Fault display
• Local operation
• Speed adjustment
• Troubleshooting

For an automated machine, however, local drive operation may not be necessary.

The machine may instead use:

PLC → Control Interface → Drive → Motor

In this type of installation, the absence of a standard HIM can be entirely practical.

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19. Product Applications

19.1 Conveyor Systems

Conveyors are one of the most natural applications for this drive.

A conveyor motor often needs more than simple on/off control.

The drive can provide:

• Controlled startup
• Adjustable speed
• Controlled stopping
• Direction control
• Fault handling
• Production-speed adjustment
• PLC integration

It can be used for belt conveyors, roller conveyors, transfer systems and packaging-line conveyors where the motor rating falls within the drive’s capability.

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19.2 Pumps

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

Potential applications include:

• Water circulation
• Process pumping
• Cooling-water circulation
• Fluid transfer
• Industrial utility systems

A variable-speed pump can adjust output according to process demand.

This can be more flexible than running a motor continuously at full speed.

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19.3 Fans and Blowers

The drive can regulate fan and blower speed.

Applications include:

• Industrial ventilation
• Exhaust systems
• Cooling systems
• Air-handling systems
• Process ventilation
• Equipment cooling

Reducing speed when full airflow is unnecessary can also reduce motor energy consumption.

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19.4 Packaging Machinery

Packaging machinery frequently requires controlled and repeatable motor speed.

Typical applications include:

• Feeding conveyors
• Product transfer
• Packaging mechanisms
• Material feeding
• Film-handling systems
• Auxiliary rotating equipment

The drive’s acceleration and deceleration functions can help improve machine behavior during repeated cycles.

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19.5 Material-Handling Equipment

Material-handling equipment often benefits from controlled acceleration.

A sudden motor start can produce mechanical shock.

Using a drive allows the motor to accelerate gradually.

This can reduce stress on:

• Belts
• Couplings
• Gearboxes
• Shafts
• Mechanical connections
• Products being transported

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19.6 Machine Tools

For suitably rated machines, the drive can be used for:

• Auxiliary spindle functions
• Small rotating machinery
• Feed mechanisms
• Cooling fans
• Pumps
• Material-processing mechanisms

The exact motor-control requirements should be evaluated before selection.

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20. Product Advantages

20.1 3 HP Normal-Duty Rating

The 3 HP rating makes this model suitable for a useful range of industrial motors.

It is larger than the 1 HP and 2 HP models while remaining within the compact Frame 3 group.

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20.2 600 VAC Capability

The 600 VAC class makes it suitable for higher-voltage three-phase motor systems.

This is a major selection advantage where a lower-voltage drive cannot meet the system requirements.

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20.3 3.9 A Continuous Output

The 3.9 A normal-duty current rating provides additional capacity compared with the 1.7 A and 2.7 A models.

This makes it suitable for applications requiring a larger motor.

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20.4 Dynamic Braking

The internal DB transistor makes it possible to use an external braking resistor where rapid deceleration is required.

This adds flexibility for high-inertia loads.

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20.5 Embedded I/O

Embedded I/O can simplify machine integration.

For relatively straightforward control systems, fewer external interface components may be required.

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20.6 Industrial Control Platform

The PowerFlex 753 architecture is suitable for industrial automation.

It can be integrated into systems involving:

• PLCs
• HMIs
• Sensors
• Industrial networks
• Motor feedback
• Machine sequencing
• Production monitoring

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20.7 Common Platform for Multiple Motor Sizes

One of the practical advantages of the PowerFlex 753 family is that different current ratings are available within the same general product architecture.

A machine manufacturer can therefore select different current ratings without completely changing the drive family.

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21. Five Recommended Models From the Same Series

The following models are closely related PowerFlex 753 configurations.

Model	Series	Voltage	Normal-Duty Current	Heavy-Duty Current	Normal-Duty HP	Heavy-Duty HP	Frame	Dimensions	Weight
20F11NE1P7AA0NNNNN	PowerFlex 753	600 VAC, 3PH	1.7 A	0.9 A	1 HP	0.5 HP	3	Approx. 454 × 190 × 212 mm	Approx. 4.54 kg
20F11NE2P7AA0NNNNN	PowerFlex 753	600 VAC, 3PH	2.7 A	1.7 A	2 HP	1 HP	3	Approx. 454 × 190 × 212 mm	Approx. 4.54 kg
20F11NE3P9AA0NNNNN	PowerFlex 753	600 VAC, 3PH	3.9 A	2.7 A	3 HP	2 HP	3	Approx. 454 × 190 × 212 mm	Approx. 4.54 kg
20F11NE6P1AA0NNNNN	PowerFlex 753	600 VAC, 3PH	6.1 A	3.9 A	5 HP	3 HP	3	Approx. 454 × 190 × 212 mm	Approx. 4.54 kg
20F11NE9P0AA0NNNNN	PowerFlex 753	600 VAC, 3PH	9.0 A	6.1 A	7.5 HP	5 HP	3	Approx. 454 × 190 × 212 mm	Approx. 4.54 kg

These models provide a straightforward progression of current capacity within the 600 VAC Frame 3 group.

The 20F11NE3P9AA0NNNNN is the 3 HP normal-duty model in this group.

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22. Recommended Higher-Power Models in the Same Series

If the motor requirement is larger than 3 HP, the following models are useful points of comparison.

Model	Voltage	Normal-Duty Current	Heavy-Duty Current	Normal-Duty HP	Heavy-Duty HP	Frame
20F11NE6P1AA0NNNNN	600 VAC	6.1 A	3.9 A	5 HP	3 HP	3
20F11NE9P0AA0NNNNN	600 VAC	9.0 A	6.1 A	7.5 HP	5 HP	3
20F11NE011AA0NNNNN	600 VAC	11 A	9.0 A	10 HP	7.5 HP	3
20F11NE017AA0NNNNN	600 VAC	17 A	11 A	15 HP	10 HP	3
20F11NE022AA0NNNNN	600 VAC	22 A	17 A	20 HP	15 HP	3

These models are useful when designing a machine family with different motor capacities while retaining the same general PowerFlex 753 architecture.

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23. Five Recommended Related Models Under the Same Brand

The following five models represent useful alternatives from related drive families.

Model	Product Series	Voltage Class	Approx. Current / Rating	Typical Application	Approx. Dimensions	Approx. Weight
20G11NE3P9JA0NNNNN	PowerFlex 755	600 VAC class	Approx. 3.9 A / 3 HP class	Advanced industrial motor control	Configuration dependent	Configuration dependent
25B-D2P3N104	PowerFlex 525	480 VAC class	Approx. 2.3 A	Small machinery, conveyors and pumps	Approx. 200 × 90 × 150 mm	Approx. 1.5–2.0 kg
25B-D4P8N104	PowerFlex 525	480 VAC class	Approx. 4.8 A	Fans, pumps, conveyors and machinery	Approx. 200 × 90 × 150 mm	Approx. 2.0–2.5 kg
22B-D2P3N104	PowerFlex 40	480 VAC class	Approx. 2.3 A	General-purpose motor control	Approx. 200 × 100 × 150 mm	Approx. 1.5–2.0 kg
22B-D6P0N104	PowerFlex 40	480 VAC class	Approx. 6.0 A	Conveyors, fans, pumps and machinery	Approx. 200 × 100 × 150 mm	Approx. 2.0–2.5 kg

These are related alternatives rather than automatic replacements.

The voltage class, motor current, application duty, I/O requirements, dimensions and control architecture should be checked before substituting one model for another.

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24. 20F11NE3P9AA0NNNNN vs. 20F11NE3P9JA0NNNNN

The JA version is one of the closest related models.

Parameter	20F11NE3P9AA0NNNNN	20F11NE3P9JA0NNNNN
Series	PowerFlex 753	PowerFlex 753
Voltage	600 VAC	600 VAC
Phase	3-phase	3-phase
Normal-Duty Current	3.9 A	3.9 A
Heavy-Duty Current	2.7 A	2.7 A
Normal-Duty Power	3 HP	3 HP
Heavy-Duty Power	2 HP	2 HP
Frame	3	3
Cooling	Air cooled	Air cooled
Enclosure	Open Type	Open Type
EMC Filter	Yes	Yes
Dynamic Braking	DB transistor	DB transistor
Embedded I/O	Yes	Yes
HIM	Blank / none	Blank / none
CM Capacitor Jumper	Removed	Installed
Dimensions	Approx. 454 × 190 × 212 mm	Approx. 454 × 190 × 212 mm
Weight	Approx. 4.54 kg	Approx. 4.54 kg

The main difference is the common-mode capacitor configuration.

For replacement purposes, the grounding arrangement should therefore be considered before choosing between these two models.

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25. 20F11NE3P9AA0NNNNN vs. 20F11NE2P7AA0NNNNN

The 2.7 A model is the next smaller member of the same group.

Parameter	20F11NE3P9AA0NNNNN	20F11NE2P7AA0NNNNN
Voltage	600 VAC	600 VAC
Normal-Duty Current	3.9 A	2.7 A
Heavy-Duty Current	2.7 A	1.7 A
Normal-Duty HP	3 HP	2 HP
Heavy-Duty HP	2 HP	1 HP
Frame	3	3
Cooling	Air cooled	Air cooled
Enclosure	Open Type	Open Type
Dynamic Braking	Yes	Yes
Embedded I/O	Yes	Yes
CM Jumper	Removed	Removed
Dimensions	Approx. 454 × 190 × 212 mm	Approx. 454 × 190 × 212 mm
Weight	Approx. 4.54 kg	Approx. 4.54 kg

If the motor current is comfortably below 2.7 A, the smaller model may be sufficient.

If the motor requires more current or the application requires greater normal-duty capacity, the 3.9 A model becomes the better choice.

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26. 20F11NE3P9AA0NNNNN vs. 20F11NE6P1AA0NNNNN

The 6.1 A model is the next major step upward.

Parameter	20F11NE3P9AA0NNNNN	20F11NE6P1AA0NNNNN
Voltage	600 VAC	600 VAC
Normal-Duty Current	3.9 A	6.1 A
Heavy-Duty Current	2.7 A	3.9 A
Normal-Duty HP	3 HP	5 HP
Heavy-Duty HP	2 HP	3 HP
Frame	3	3
Cooling	Air cooled	Air cooled
Dynamic Braking	Yes	Yes
Embedded I/O	Yes	Yes
EMC Filter	Yes	Yes
CM Jumper	Removed	Removed
Dimensions	Approx. 454 × 190 × 212 mm	Approx. 454 × 190 × 212 mm
Weight	Approx. 4.54 kg	Approx. 4.54 kg

This makes the 6.1 A model a logical selection when the motor is larger than the 3 HP class.

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27. Typical Industrial Control Structure

A typical system using this drive may look like:

Operator Interface

↓

PLC / Machine Controller

↓

Control Network or Embedded I/O

↓

PowerFlex 753 Drive

↓

Three-Phase AC Motor

↓

Conveyor / Pump / Fan / Mechanical Load

The drive acts as the power-control stage between the automation system and the motor.

The controller can issue commands such as:

• Start
• Stop
• Speed reference
• Direction
• Acceleration
• Deceleration
• Fault reset

The drive can provide information back to the controller, including:

• Drive status
• Running condition
• Fault condition
• Output frequency
• Motor current
• Operating state

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28. Application Example: Conveyor

Suppose a production line uses a 3 HP three-phase conveyor motor.

A conventional starter can turn the motor on and off, but it does not provide the same degree of speed control.

With the 20F11NE3P9AA0NNNNN, the conveyor can be programmed to accelerate gradually.

For example:

0 Hz → controlled acceleration → production speed → controlled deceleration → stop

The production speed can also be adjusted according to the machine’s operating condition.

This is useful for:

• Packaging lines
• Assembly lines
• Material transfer
• Sorting systems
• Production conveyors

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29. Application Example: Pump

A pump system may not always need maximum motor speed.

If the process demand is lower, the drive can reduce the motor speed.

If demand increases, the speed can be increased.

This makes the drive useful for applications such as:

• Cooling-water circulation
• Process fluid transfer
• Industrial water systems
• Circulation systems

The exact control method depends on the pump characteristics and process requirements.

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30. Application Example: Fan

For an industrial fan, the drive can provide adjustable speed.

A simple operating strategy might be:

Operating Requirement	Drive Speed
Low ventilation requirement	Low speed
Normal production	Medium speed
High ventilation requirement	Higher speed
Emergency or maximum airflow condition	High operating speed within system limits

The benefit is that the fan does not necessarily need to operate continuously at maximum speed.

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31. Application Example: Packaging Equipment

Packaging equipment frequently needs repeatable motor operation.

The drive can be programmed for:

• Acceleration ramp
• Production speed
• Deceleration ramp
• Stop behavior
• Direction
• Fault response

This can help make machine operation more consistent.

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32. Application Example: Material Handling

Material-handling machinery can experience substantial mechanical shock when motors start and stop abruptly.

Using controlled acceleration can reduce sudden torque transmission.

Potential benefits include:

• Reduced belt stress
• Reduced coupling stress
• Smoother product movement
• Reduced mechanical shock
• More predictable stopping
• Better integration with machine sequencing

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33. Main Advantages Summary

Advantage	Practical Benefit
3 HP Normal-Duty Rating	Suitable for a wide range of small industrial motors
600 VAC Class	Suitable for higher-voltage three-phase motor systems
3.9 A Continuous Current	Provides more capacity than smaller Frame 3 models
Frame 3	Common mechanical platform for several drive ratings
Air Cooling	Suitable for electrical cabinet installation
Embedded I/O	Simplifies basic control connections
EMC Filter	Supports electrical-noise management
Dynamic-Braking Transistor	Supports external braking resistor applications
No HIM	Suitable for PLC/HMI-controlled machinery
Open-Type Design	Flexible for custom control cabinets
Programmable Speed	Allows variable-speed machine operation
Controlled Acceleration	Reduces mechanical shock
Controlled Deceleration	Improves stopping behavior
Industrial Architecture	Suitable for automated machinery

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34. Selection Guide

Motor / Application Requirement	Suggested Model
Around 1 HP normal duty	20F11NE1P7AA0NNNNN
Around 2 HP normal duty	20F11NE2P7AA0NNNNN
Around 3 HP normal duty	20F11NE3P9AA0NNNNN
Around 5 HP normal duty	20F11NE6P1AA0NNNNN
Around 7.5 HP normal duty	20F11NE9P0AA0NNNNN
Around 10 HP normal duty	20F11NE011AA0NNNNN
Around 15 HP normal duty	20F11NE017AA0NNNNN
Around 20 HP normal duty	20F11NE022AA0NNNNN

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

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35. Installation Considerations

Before installing the 20F11NE3P9AA0NNNNN, the following should be checked.

Electrical Supply

Confirm that the available three-phase supply is compatible with the 600 VAC drive configuration.

Motor Nameplate

Check:

• Rated voltage
• Rated current
• Rated frequency
• Rated speed
• Motor power
• Connection configuration

Load Characteristics

Determine whether the machine is:

• Constant torque
• Variable torque
• High inertia
• Frequent cycling
• High starting torque
• Frequent braking

Braking

If rapid stopping is required, calculate the required braking resistor based on:

• Motor speed
• Load inertia
• Deceleration time
• Duty cycle
• Regenerative energy

Cabinet

Provide adequate:

• Ventilation
• Clearance
• Cable routing
• Grounding
• Maintenance access

Grounding

Because this is the AA configuration, the common-mode capacitor jumper is removed. The grounding arrangement should therefore be considered as part of the installation design.

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36. Maintenance Considerations

Routine maintenance should focus on the overall electrical environment rather than simply the drive itself.

Important items include:

• Cooling fan condition
• Cabinet temperature
• Dust accumulation
• Electrical connections
• Grounding
• Motor cable condition
• Control wiring
• Braking resistor condition
• Fault history
• Drive operating temperature

Dust and heat are particularly important in air-cooled drives.

A control cabinet that is clean and properly ventilated generally provides a better environment for long-term drive operation.

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37. Product Strengths for OEM Machine Builders

For OEM applications, the 20F11NE3P9AA0NNNNN offers several practical advantages.

First, it provides a consistent industrial drive platform.

Second, the 3 HP rating covers a useful range of machine motors.

Third, the embedded I/O can simplify control-panel design.

Fourth, the internal braking transistor provides additional flexibility when the machine requires controlled stopping.

Fifth, the 600 VAC configuration allows use in higher-voltage industrial systems.

Sixth, the Frame 3 family includes several current ratings, allowing different machine variants to use closely related drive configurations.

This can simplify engineering standardization.

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38. Product Strengths for Maintenance Departments

For maintenance teams, the main benefits are controllability and diagnostic capability.

A variable frequency drive can provide more information about motor operation than a simple motor starter.

Depending on the control architecture, maintenance personnel can work with:

• Drive status
• Motor current
• Output frequency
• Fault information
• Speed reference
• Acceleration parameters
• Deceleration parameters
• Motor-control settings

This can make troubleshooting more systematic.

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39. Final Technical Summary

Category	Specification
Model	20F11NE3P9AA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 753
Product Type	AC Variable Frequency Drive
Input Voltage	600 VAC
Input Phase	3-phase
Output Phase	3-phase
Normal-Duty Continuous Current	3.9 A
Heavy-Duty Continuous Current	2.7 A
Normal-Duty 1-Minute Current	4.3 A
Heavy-Duty 1-Minute Current	4.1 A
Normal-Duty 3-Second Current	5.9 A
Heavy-Duty 3-Second Current	7.3 A
Normal-Duty Motor Rating	3 HP
Heavy-Duty Motor Rating	2 HP
Normal-Duty Power	Approx. 2.2 kW
Heavy-Duty Power	Approx. 1.5 kW
Frame	3
Cooling	Air cooled
Enclosure	Open Type
Protection	IP20
EMC Filter	Yes
CM Capacitor Jumper	Removed
Dynamic Braking	Internal DB transistor
External Braking Resistor	Applicable
Embedded I/O	Yes
HIM	Blank / No HIM
Approx. Dimensions	454 × 190 × 212 mm
Approx. Weight	4.54 kg
Main Applications	Conveyors, pumps, fans, blowers, packaging and general machinery
Main Advantage	3 HP-class industrial variable-speed control in a Frame 3, 600 VAC configuration

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40. Final Assessment

The 20F11NE3P9AA0NNNNN is a solid choice when an industrial machine requires a 600 VAC, three-phase, 3 HP normal-duty variable frequency drive with programmable motor-speed control and industrial automation integration.

Its 3.9 A normal-duty continuous output places it above the 1 HP and 2 HP models in the same Frame 3 family, while the 2.7 A heavy-duty rating gives it an additional operating category for applications with different load requirements.

The drive’s combination of embedded I/O, EMC filtering, dynamic-braking transistor, air cooling, open-type construction and blank/no-HIM configuration makes it suitable for control cabinets used in automated industrial machinery.

The AA configuration is also an important selection characteristic because the common-mode capacitor jumper is removed. This should be taken into account when selecting a replacement or comparing the model with the corresponding JA configuration.

For a machine using a 3 HP motor with a compatible 600 VAC three-phase electrical system, this model provides a practical combination of power capacity, controllability and industrial integration.

If the motor is smaller, the 20F11NE1P7AA0NNNNN or 20F11NE2P7AA0NNNNN may be sufficient.

If the motor is larger, the 20F11NE6P1AA0NNNNN, 20F11NE9P0AA0NNNNN or higher-rated PowerFlex 753 models provide a natural progression.

For applications requiring a more compact drive architecture, a smaller drive family can be considered.

For applications requiring a more advanced industrial drive architecture, a higher-end related family may be more appropriate.

In practical terms, the 20F11NE3P9AA0NNNNN can be summarized as a 3 HP normal-duty / 2 HP heavy-duty, 600 VAC, three-phase, Frame 3 PowerFlex 753 AC drive, with 3.9 A normal-duty current, embedded I/O, EMC filtering, dynamic braking capability and a removed common-mode capacitor jumper.