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1. Product Overview

The 20F11ND3P4JA0NNNNN is an Allen-Bradley PowerFlex 753 AC drive designed for three-phase industrial motor control.

This particular configuration is a 480 VAC, 3-phase, 3.4 A, Frame 2 drive with embedded I/O, forced-air cooling, filtered EMC configuration, an installed CM jumper, an internal dynamic-braking transistor, and no factory-installed HIM.

The drive is rated at 2 HP for Normal Duty and 2 HP for Heavy Duty in the Frame 2 configuration. The catalog description also shows that the same current code can have a different rating in Frame 1, which is why the complete catalog number and frame should always be considered together.

For a machine using a small three-phase motor but requiring a more capable industrial drive platform, this model provides considerably more flexibility than a simple motor starter.

It is particularly appropriate for applications such as small conveyors, rollers, feeders, pumps, fans, blowers, packaging machinery and auxiliary machine mechanisms.

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2. Brand and Product Series

Item	Specification
Model	20F11ND3P4JA0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 753
Product Type	AC Variable-Frequency Drive
Drive Configuration	Air-Cooled AC Drive
Voltage Class	480 VAC
Input Voltage Class	380–480 VAC
Input Phase	3-phase
Output Phase	3-phase
Output Current	3.4 A
Normal Duty Rating	2 HP
Heavy Duty Rating	2 HP
Normal Duty Power	Approx. 1.5 kW
Heavy Duty Power	Approx. 1.5 kW
Frame	Frame 2
Cooling	Forced air
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Embedded I/O	Yes
Input Configuration	AC input with precharge / DC terminals
EMC Configuration	Filtered
CM Jumper	Installed
Dynamic Braking	Internal DB transistor
HIM	Blank / No HIM
Approx. Height	424.2 mm
Approx. Width	134.5 mm
Approx. Depth	212.0 mm
Approx. Weight	7.8 kg

The 3.4 A, 480 VAC, three-phase and Frame 2 characteristics are part of the defined catalog configuration.

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3. Complete Technical Parameters

Parameter	Specification
Model	20F11ND3P4JA0NNNNN
Brand	Allen-Bradley
Product Series	PowerFlex 753
Product Family	PowerFlex 750-Series
Product Type	AC Drive
Voltage Class	480 VAC
Input Voltage	380–480 VAC class
Input Phase	3-phase
Output Phase	3-phase
Continuous Output Current	3.4 A
Normal Duty Motor Rating	2 HP
Heavy Duty Motor Rating	2 HP
Normal Duty Power	Approx. 1.5 kW
Heavy Duty Power	Approx. 1.5 kW
Input Type	AC input with precharge
DC Terminals	Yes
Frame Size	Frame 2
Cooling Method	Forced air
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Embedded I/O	Yes
EMC Filtering	Filtered
CM Capacitor Jumper	Installed
Dynamic Braking	Internal DB transistor
HIM	Blank / No HIM
Mounting	Panel / cabinet mounting
Approx. Height	424.2 mm
Approx. Width	134.5 mm
Approx. Depth	212.0 mm
Approx. Weight	7.8 kg

The Frame 2 dimensional data is approximately 424.2 mm high × 134.5 mm wide × 212.0 mm deep, with an approximate weight of 7.8 kg for the IP00/IP20 open-type configuration.

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4. Electrical Rating

Electrical Parameter	Specification
Model	20F11ND3P4JA0NNNNN
Voltage Class	480 VAC
Input Voltage	380–480 VAC class
Input Phase	3-phase
Output Phase	3-phase
Continuous Output Current	3.4 A
Normal Duty	2 HP
Heavy Duty	2 HP
Normal Duty Power	Approx. 1.5 kW
Heavy Duty Power	Approx. 1.5 kW
Input Type	AC input with precharge
DC Terminals	Yes
Cooling	Forced air
Frame	Frame 2

The 3.4 A output-current rating is one of the most important specifications when matching this drive to a motor.

In practical selection work, the motor nameplate current should be checked rather than relying only on horsepower.

Horsepower provides a useful general reference, but motor current is the more direct electrical selection parameter.

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5. Normal Duty and Heavy Duty

The catalog configuration is particularly useful because the Frame 2 version is rated at 2 HP Normal Duty and 2 HP Heavy Duty.

Rating	20F11ND3P4JA0NNNNN
Model	20F11ND3P4JA0NNNNN
Output Current	3.4 A
Normal Duty	2 HP
Heavy Duty	2 HP
Normal Duty Power	Approx. 1.5 kW
Heavy Duty Power	Approx. 1.5 kW
Frame	2

This is worth noting because the same current designation can appear with different horsepower ratings depending on frame configuration.

For replacement work, therefore, the full catalog number is much more useful than a shortened description such as “3.4 A PowerFlex 753.”

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6. Product Introduction

The 20F11ND3P4JA0NNNNN is a variable-frequency drive intended to regulate the operation of three-phase AC motors.

The basic purpose of the drive is to convert incoming AC power into a controlled motor output.

Instead of simply switching a motor between stopped and full speed, the drive allows the machine to control motor speed and acceleration.

This makes the motor a controllable part of the machine process.

A conveyor can start gradually.

A roller can operate at different speeds.

A pump can respond to changing process demand.

A fan can run below maximum speed when full airflow is unnecessary.

A feeder can adjust material flow.

A packaging mechanism can use different speed profiles during different stages of the machine cycle.

That flexibility is the main reason to use a variable-frequency drive instead of a conventional contactor-based starter.

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7. Position Within the PowerFlex 753 Series

The PowerFlex 753 family is designed as an industrial AC-drive platform with a broad range of current and power ratings.

The 20F11ND3P4JA0NNNNN belongs to the lower-power portion of the 480 VAC three-phase range.

Its Frame 2 construction gives it the same general mechanical platform used by several other lower-power configurations.

This is useful when a machine builder wants to keep a consistent drive architecture while using different motor sizes.

For example, one machine may use a 2 HP motor, while another version of the machine may use a 3 HP or 5 HP motor.

Using related drive configurations can reduce the number of completely different products that maintenance personnel need to learn.

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8. Main Product Characteristics

Feature	20F11ND3P4JA0NNNNN
Model	20F11ND3P4JA0NNNNN
480 VAC Three-Phase	Yes
3.4 A Output	Yes
2 HP Normal Duty	Yes
2 HP Heavy Duty	Yes
Frame 2	Yes
Embedded I/O	Yes
Forced-Air Cooling	Yes
Filtered Configuration	Yes
CM Jumper Installed	Yes
Internal DB Transistor	Yes
Blank / No HIM	Yes
IP20/IP00	Yes
NEMA/UL Open Type	Yes

The combination of these features makes the drive appropriate for machine-control applications where motor speed control and integration flexibility are more important than simply having the smallest possible inverter.

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9. Dimensions and Weight

The mechanical dimensions are important when planning a cabinet.

Mechanical Parameter	Specification
Model	20F11ND3P4JA0NNNNN
Frame	Frame 2
Height	424.2 mm
Width	134.5 mm
Depth	212.0 mm
Approx. Weight	7.8 kg
Enclosure	IP20/IP00
Cooling	Forced air
Mounting	Panel / cabinet

The dimensions above are the approximate Frame 2 open-type dimensions.

The physical installation area should be larger than the drive itself because power cables, control wiring, airflow and maintenance access all require additional space.

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10. Forced-Air Cooling

The 20F11ND3P4JA0NNNNN uses forced-air cooling.

This means cabinet ventilation needs to be considered during machine design.

A drive that operates in a hot, enclosed cabinet may experience more thermal stress than one installed in a properly ventilated enclosure.

Cooling Item	Practical Requirement
Cooling Fan	Keep operational
Air Intake	Keep unobstructed
Air Exhaust	Keep unobstructed
Cabinet Ventilation	Provide suitable airflow
Dust	Minimize accumulation
Ambient Temperature	Keep within permitted limits
Nearby Heat Sources	Evaluate carefully
Maintenance	Inspect cooling system

A clean airflow path is particularly important for equipment operating continuously.

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11. IP20/IP00 and Open-Type Construction

The drive uses an IP20/IP00, NEMA/UL Open Type configuration.

This type of construction is intended for integration into an appropriate electrical enclosure.

The drive should therefore be treated as a component of a complete control cabinet rather than as a weatherproof standalone product.

The enclosure selected by the machine builder should provide the environmental protection required by the installation.

Possible environmental concerns include:

• Dust
• Moisture
• Condensation
• Oil mist
• Conductive particles
• Corrosive contaminants
• Excessive humidity
• Mechanical impact

A suitable cabinet is therefore part of the overall protection system.

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12. Embedded I/O

The drive includes embedded I/O.

This is one of the useful characteristics of the PowerFlex 753 platform.

Basic machine signals can be integrated into the drive’s control system without necessarily requiring a separate external interface for every function.

Depending on the machine architecture, drive-related signals may include:

• Start command
• Stop command
• Forward command
• Reverse command
• Run indication
• Fault indication
• Reset
• Interlock
• Speed reference
• Process-related feedback

For machine builders, this can reduce wiring complexity and make the drive easier to integrate into the overall control architecture.

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13. Dynamic-Braking Transistor

The model includes an internal dynamic-braking transistor.

This feature is useful when the motor needs controlled deceleration.

When a rotating motor decelerates, the mechanical energy stored in the rotating system can flow back toward the drive’s DC bus.

If this energy causes the DC-bus voltage to rise excessively, the drive needs a way to dissipate or otherwise manage the regenerated energy.

A dynamic-braking circuit can send this energy to a braking resistor.

The internal transistor provides the switching element for that braking arrangement.

It is important to make one distinction:

An internal DB transistor does not mean that a braking resistor is automatically included.

The braking resistor must be selected according to the actual machine requirements when dynamic braking is needed.

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14. Typical Braking Applications

The dynamic-braking capability can be useful for:

• Small conveyors
• Rollers
• Feeders
• High-inertia rotating equipment
• Machines requiring short stopping times
• Repeated start/stop mechanisms
• Auxiliary machine drives

The braking requirement depends on the mechanical system rather than simply the motor horsepower.

For example, a 2 HP motor with a large rotating load can require considerably more braking capability than a lightly loaded motor of the same rating.

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15. Filtered Configuration

The model is supplied in a filtered configuration with the CM jumper installed.

This can be useful when electromagnetic compatibility is an important consideration.

However, the filter is only one part of a good EMC installation.

The machine designer should also consider:

• Grounding
• Shielding
• Motor cable routing
• Cabinet bonding
• Separation between power and signal wiring
• Cable length
• Control-circuit layout
• Proper termination

A good drive installation therefore combines the drive’s electrical configuration with sensible cabinet and wiring practices.

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16. No Factory-Installed HIM

The model is specified with:

Blank — No HIM

HIM refers to the Human Interface Module.

This means the catalog configuration does not include a factory-installed local operator interface.

For machines controlled primarily through a PLC or HMI, this can be a perfectly practical arrangement.

It avoids putting an unnecessary local display on the drive when the operator will normally interact with the machine through a separate control interface.

A suitable interface can be added separately when local commissioning or maintenance access is required.

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17. Product Applications

17.1 Small Conveyors

Small conveyors are one of the most natural applications for a 2 HP variable-frequency drive.

A conveyor may need to start smoothly rather than applying full motor torque instantly.

Controlled acceleration can reduce mechanical shock on:

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

The drive can also provide adjustable running speed when the conveyor needs to match another machine.

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18. Material-Handling Equipment

Small material-handling machines often require multiple motor speeds.

A conveyor or roller may operate at one speed during normal transportation and another during product loading or positioning.

The drive makes these changes electronically.

This can be more convenient than using mechanical gearing when the machine needs frequent speed adjustments.

Typical applications include:

• Transfer conveyors
• Roller systems
• Product handling
• Small belt systems
• Feed mechanisms
• Machine-to-machine transfer systems

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19. Pumps

The 20F11ND3P4JA0NNNNN can also be used with suitable small three-phase pumps.

Potential applications include:

• Circulation pumps
• Cooling pumps
• Transfer pumps
• Process pumps
• Small water systems

Variable-speed operation can allow the pump to respond to process requirements instead of operating continuously at maximum speed.

The actual energy-saving benefit depends on the pump curve, piping arrangement and process requirements.

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20. Fans and Blowers

Small fans and blowers can benefit from adjustable motor speed.

Typical applications include:

• Machine cooling
• Ventilation
• Exhaust systems
• Small air-handling equipment
• Process blowers

A drive allows the machine to vary airflow according to operating conditions.

This is more flexible than simple ON/OFF operation.

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21. Feeders

A feeder often needs controlled material flow.

The motor can operate at different speeds depending on the desired feed rate.

For example:

Operating Condition	Possible Drive Function
Startup	Low-speed acceleration
Normal Feeding	Constant programmed speed
Increased Production	Higher speed
Fine Adjustment	Small speed changes
Shutdown	Controlled deceleration

This makes the drive useful in machines where motor speed directly affects production rate.

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22. Rollers

Small rollers are another common application.

A fixed-speed motor can certainly drive a roller, but it becomes less flexible when the machine needs different speeds.

With a variable-frequency drive, the roller speed can be adjusted electronically.

This is useful in:

• Processing machines
• Packaging machines
• Material-handling equipment
• Small transport systems
• Auxiliary machine mechanisms

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23. Packaging Machinery

Packaging machines frequently contain several relatively small motors.

These motors can operate:

• Feed belts
• Product rollers
• Film-handling mechanisms
• Small conveyors
• Positioning mechanisms
• Auxiliary drives

The 20F11ND3P4JA0NNNNN can be considered where the motor current remains within the drive rating and the machine benefits from adjustable speed.

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24. Advantages of the Product

24.1 Industrial PowerFlex 753 Platform

The first major advantage is the platform itself.

The drive is not simply a small inverter intended only for basic speed control.

It belongs to a broader industrial drive family.

This can be valuable for machine builders that want consistent architecture across different motor sizes.

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24.2 3.4 A Output

The 3.4 A output rating gives the drive a practical place in small-motor applications.

It is appropriate for a 480 VAC three-phase motor in the approximately 2 HP class when the actual motor current and application conditions are compatible.

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25. 2 HP Normal Duty and Heavy Duty

For the Frame 2 configuration, the drive is rated at 2 HP ND / 2 HP HD.

Rating	Value
Model	20F11ND3P4JA0NNNNN
Continuous Current	3.4 A
Normal Duty	2 HP
Heavy Duty	2 HP
Approx. Normal Duty Power	1.5 kW
Approx. Heavy Duty Power	1.5 kW

This makes the model straightforward to evaluate for applications around the 2 HP range.

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26. Embedded I/O Advantage

Embedded I/O can simplify machine integration.

For a machine builder, this may reduce:

• Additional interface hardware
• Control-panel wiring
• Terminal count
• Engineering effort
• Troubleshooting complexity

It also makes the drive a more integrated part of the machine rather than a separate motor-control box.

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27. Dynamic Braking Advantage

The internal DB transistor can be valuable when the application needs controlled stopping.

This is particularly useful for machines where stopping time matters.

Examples include:

• Short conveyor stops
• Roller positioning
• Repeated cycling
• High-inertia mechanisms
• Production equipment with frequent deceleration

The actual braking resistor must still be correctly selected.

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28. Filtered EMC Configuration

The filtered configuration can help when the machine has sensitive electronic equipment nearby.

This is particularly relevant where the same cabinet contains:

• PLCs
• Analog I/O
• Communication equipment
• Sensors
• Measurement circuits
• Operator interfaces
• Other electronic devices

Correct grounding and cable routing remain essential.

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29. Frame 2 Mechanical Platform

The Frame 2 design provides a consistent mechanical platform for several lower-power drive ratings.

This can be useful for standardized machine construction.

A machine builder can potentially retain the same basic cabinet mounting arrangement while selecting a different electrical rating within the compatible Frame 2 range.

That can reduce mechanical redesign work when the motor specification changes.

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30. Five Recommended Same-Series Models

The following models are useful related PowerFlex 753 configurations in the same general lower-power range.

Model	Series	Voltage	Output Current	ND Rating	HD Rating	Frame	Approx. Dimensions H × W × D	Approx. Weight
20F11ND2P1JA0NNNNN	PowerFlex 753	480 VAC, 3-phase	2.1 A	1 HP	1 HP	2	424.2 × 134.5 × 212 mm	7.8 kg
20F11ND3P4JA0NNNNN	PowerFlex 753	480 VAC, 3-phase	3.4 A	2 HP	2 HP	2	424.2 × 134.5 × 212 mm	7.8 kg
20F11ND5P0JA0NNNNN	PowerFlex 753	480 VAC, 3-phase	5.0 A	3 HP	3 HP	2	424.2 × 134.5 × 212 mm	7.8 kg
20F11ND8P0JA0NNNNN	PowerFlex 753	480 VAC, 3-phase	8.0 A class	5 HP	5 HP	2	424.2 × 134.5 × 212 mm	7.8 kg
20F11ND011JA0NNNNN	PowerFlex 753	480 VAC, 3-phase	11.5 A	7.5 HP	7.5 HP	2	424.2 × 134.5 × 212 mm	7.8 kg

The PowerFlex 753 rating progression includes 2.1 A, 3.4 A, 5.0 A, 8-class and 11-class configurations in the lower-power range.

The Frame 2 mechanical dimensions and approximate weight are shared across this frame group.

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31. Same-Series Comparison

Parameter	20F11ND2P1JA0NNNNN	20F11ND3P4JA0NNNNN	20F11ND5P0JA0NNNNN	20F11ND8P0JA0NNNNN	20F11ND011JA0NNNNN
Series	PowerFlex 753	PowerFlex 753	PowerFlex 753	PowerFlex 753	PowerFlex 753
Voltage	480 VAC	480 VAC	480 VAC	480 VAC	480 VAC
Output Current	2.1 A	3.4 A	5.0 A	8.0 A class	11.5 A
ND Rating	1 HP	2 HP	3 HP	5 HP	7.5 HP
HD Rating	1 HP	2 HP	3 HP	5 HP	7.5 HP
Frame	2	2	2	2	2
Cooling	Forced air	Forced air	Forced air	Forced air	Forced air
Embedded I/O	Yes	Yes	Yes	Yes	Yes
Filtering	Yes	Yes	Yes	Yes	Yes
CM Jumper	Installed	Installed	Installed	Installed	Installed
DB Transistor	Yes	Yes	Yes	Yes	Yes
Approx. Height	424.2 mm	424.2 mm	424.2 mm	424.2 mm	424.2 mm
Approx. Width	134.5 mm	134.5 mm	134.5 mm	134.5 mm	134.5 mm
Approx. Depth	212 mm	212 mm	212 mm	212 mm	212 mm
Approx. Weight	7.8 kg	7.8 kg	7.8 kg	7.8 kg	7.8 kg

The main difference among these related models is electrical capacity rather than basic mechanical form.

That is useful when a machine platform needs to support different motor sizes without completely changing the physical drive arrangement.

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32. Five Same-Brand Popular Models

For applications where a smaller and more compact drive is preferred, the following models are useful alternatives from the same brand.

Model	Series	Voltage	Phase	Output Current	ND Power	HD Power	Frame	Approx. Dimensions H × W × D	Approx. Weight
25B-D010N114	PowerFlex 525	380–480 VAC	3-phase	10.5 A	5 HP	5 HP	B	152 × 87 × 172 mm	1.6 kg
25B-D017N114	PowerFlex 525	380–480 VAC	3-phase	17 A	10 HP	10 HP	C	220 × 109 × 184 mm	2.3 kg
25B-D024N114	PowerFlex 525	380–480 VAC	3-phase	24 A	15 HP	15 HP	D	260 × 130 × 212 mm	3.9 kg
25B-D030N114	PowerFlex 525	380–480 VAC	3-phase	30 A	20 HP	15 HP	D	260 × 130 × 212 mm	3.9 kg
25B-E012N104	PowerFlex 525	525–600 VAC	3-phase	12 A	10 HP	10 HP	C	220 × 109 × 184 mm	2.3 kg

These alternatives belong to a different series.

Their main attraction is physical compactness.

Compared with the Frame 2 PowerFlex 753, they can occupy substantially less cabinet space.

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33. PowerFlex 753 Versus Compact Drive Alternatives

Consideration	20F11ND3P4JA0NNNNN	25B-D010N114	25B-D017N114	25B-D024N114	25B-D030N114
Product Series	PowerFlex 753	PowerFlex 525	PowerFlex 525	PowerFlex 525	PowerFlex 525
Voltage	480 VAC class	380–480 VAC	380–480 VAC	380–480 VAC	380–480 VAC
Output Current	3.4 A	10.5 A	17 A	24 A	30 A
Approx. Power	2 HP	5 HP	10 HP	15 HP	20 HP
Frame	2	B	C	D	D
Approx. Weight	7.8 kg	1.6 kg	2.3 kg	3.9 kg	3.9 kg
Relative Physical Size	Larger	Very compact	Compact	Compact	Compact
Main Strength	PowerFlex 753 architecture	Compact installation	Compact installation	Higher compact-drive capacity	Higher compact-drive capacity

The important point is that these products should not be compared solely by horsepower.

A smaller drive may be better when panel space is the main concern.

The PowerFlex 753 becomes more attractive when the machine needs the broader architecture and integration possibilities of that platform.

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34. Recommended Model by Motor Size

Approx. Motor Power	Recommended Model	Series	Approx. Output Current
1 HP	20F11ND2P1JA0NNNNN	PowerFlex 753	2.1 A
2 HP	20F11ND3P4JA0NNNNN	PowerFlex 753	3.4 A
3 HP	20F11ND5P0JA0NNNNN	PowerFlex 753	5.0 A
5 HP	20F11ND8P0JA0NNNNN	PowerFlex 753	8.0 A class
7.5 HP	20F11ND011JA0NNNNN	PowerFlex 753	11.5 A
10 HP	20F11ND014JA0NNNNN	PowerFlex 753	14 A class

This table provides a convenient way to understand the progression within the series.

Actual selection should be based on the motor’s nameplate current, voltage, duty cycle, overload requirements and mechanical load.

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35. Small Conveyor Application Example

Consider a 2 HP conveyor motor.

The machine may require:

1. Smooth acceleration.
2. Adjustable running speed.
3. Controlled deceleration.
4. Occasional rapid stopping.
5. Integration with a PLC.
6. Fault feedback to the machine controller.

The 20F11ND3P4JA0NNNNN can fit this type of architecture well.

The drive can control the motor speed while the embedded I/O provides a practical connection between the drive and the machine-control system.

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36. Pump Application Example

A small pump does not always need to operate at full speed.

If the process requires less flow, reducing motor speed may provide better process control.

The drive can therefore act as both a motor controller and a process-control element.

The actual pump selection should still consider:

• Pump curve
• Required flow
• Required pressure
• Motor current
• Starting requirements
• Minimum operating speed
• Process fluid
• Duty cycle

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37. Fan and Blower Application

A fan application can use the drive to regulate airflow.

A machine may require:

• High speed during production
• Medium speed during normal operation
• Low speed during standby
• Controlled acceleration during startup

This is a natural application for variable-frequency control.

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38. Feeder Application

A material feeder often needs speed control because motor speed directly influences feed rate.

The drive can provide a stable speed reference and allow the machine controller to change that reference when production requirements change.

This can be useful for:

• Packaging lines
• Material feeders
• Small dosing systems
• Product handling
• Machine loading systems

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39. Roller Application

A roller driven by a 2 HP motor may require several operating speeds.

For example:

Machine Stage	Example Speed Strategy
Startup	Gradual acceleration
Loading	Low speed
Normal operation	Constant speed
Adjustment	Variable speed
Stopping	Controlled deceleration

This type of operation is much easier to implement electronically than by repeatedly changing mechanical gearing.

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40. Packaging Equipment

Packaging machinery often contains several independent motors.

Some motors may control:

• Product feed
• Film transport
• Rollers
• Conveyors
• Product positioning
• Auxiliary mechanisms

A common drive platform can simplify machine engineering when several motor sizes are used within the same machine family.

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41. Advantages for Machine Builders

A major advantage is standardization.

A machine builder can use closely related drive configurations for different motor sizes.

For example:

Motor Rating	Possible Drive
1 HP	20F11ND2P1JA0NNNNN
2 HP	20F11ND3P4JA0NNNNN
3 HP	20F11ND5P0JA0NNNNN
5 HP	20F11ND8P0JA0NNNNN
7.5 HP	20F11ND011JA0NNNNN
10 HP	20F11ND014JA0NNNNN

This can reduce engineering variation between machine models.

It can also make troubleshooting easier because technicians are dealing with a familiar drive architecture.

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42. Maintenance Advantages

For maintenance personnel, standardization can be more important than raw drive size.

A consistent platform can simplify:

• Drive replacement
• Parameter management
• Fault diagnosis
• Spare-parts planning
• Technician training
• Commissioning
• Preventive maintenance

The complete catalog number should still be checked before replacing a drive because filtering, braking, interface and other configuration details can differ.

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43. Cabinet Design

The approximate physical dimensions of the Frame 2 drive are:

424.2 mm height

134.5 mm width

212.0 mm depth

These figures should not be treated as the complete cabinet-space requirement.

Additional room is normally required for:

• Incoming power cables
• Motor cables
• Control cables
• Grounding
• Cable bends
• Ventilation
• Maintenance
• Adjacent equipment

A cabinet designed exactly around the drive’s external dimensions will usually leave insufficient working space.

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44. Thermal Design

The drive is forced-air cooled.

Therefore, cabinet temperature and airflow should be evaluated during design.

If several drives are installed in the same enclosure, their combined heat output needs to be considered.

Other heat-generating equipment can include:

• Power supplies
• Transformers
• Contactors
• Braking resistors
• Other drives
• Power electronics

A good cabinet layout should prevent hot exhaust air from being drawn directly into another drive.

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45. EMC and Wiring

The filtered configuration is useful, but proper wiring remains essential.

Recommended practices include:

• Keep motor cables away from sensitive signal cables.
• Minimize long parallel runs between power and analog wiring.
• Use appropriate grounding.
• Maintain good cabinet bonding.
• Follow suitable shield termination practices.
• Keep control wiring organized.
• Avoid unnecessary cable loops.
• Separate high-current power wiring from low-level signals.

These practices can help prevent unwanted electrical noise from affecting sensors, communication equipment or analog control signals.

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46. Braking System Considerations

The internal DB transistor provides the switching element for a dynamic-braking arrangement.

The actual braking resistor must be selected according to the application.

Important factors include:

Factor	Why It Matters
Motor Power	Determines energy scale
Motor Speed	Affects stored kinetic energy
Load Inertia	Major influence on braking demand
Deceleration Time	Shorter stopping time increases braking power
Stop Frequency	Repeated braking increases average heat
Resistor Rating	Determines allowable energy dissipation
Ambient Temperature	Affects thermal performance

A braking resistor that is adequate for occasional stopping may not be adequate for repeated rapid stopping.

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47. Installation Considerations

Installation Item	Requirement
Model	20F11ND3P4JA0NNNNN
Input Voltage	380–480 VAC class
Input Phase	3-phase
Motor Current	Must be compatible with 3.4 A rating
Motor Rating	Around 2 HP class
Enclosure	Suitable cabinet required
Cooling	Forced-air airflow required
Grounding	Proper industrial grounding
EMC	Appropriate cable routing
Motor Cable	Suitable for drive output
Control Wiring	Keep organized and separated
Braking	Evaluate if required
Mounting	Frame 2 mounting
Service Access	Maintain adequate space

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48. Maintenance Checklist

Maintenance Item	Recommended Action
Cooling Fan	Check operation
Air Intake	Keep clear
Air Exhaust	Keep clear
Cabinet Dust	Clean periodically
Power Terminals	Inspect
Motor Connections	Inspect
Grounding	Verify
Control Wiring	Inspect
Drive Mounting	Check
Cable Condition	Inspect
Fault History	Review
Braking Components	Inspect if used
Cabinet Temperature	Monitor
Ventilation	Verify

Preventive maintenance is particularly useful for equipment operating continuously or in dusty industrial environments.

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49. Replacement Selection

When replacing an existing drive, the following parameters should be compared.

Replacement Parameter	Required Value
Catalog Number	20F11ND3P4JA0NNNNN
Voltage Class	480 VAC
Input Phase	3-phase
Output Current	3.4 A
Normal Duty	2 HP
Heavy Duty	2 HP
Frame	2
Enclosure	IP20/IP00 Open Type
Cooling	Forced air
Embedded I/O	Yes
Filtering	Filtered
CM Jumper	Installed
DB Transistor	Included
HIM	Blank / No HIM
Height	424.2 mm
Width	134.5 mm
Depth	212.0 mm
Weight	Approx. 7.8 kg

The safest replacement approach is to compare the complete catalog number, motor nameplate data and application requirements.

A drive with the same horsepower but a different voltage, current or configuration is not automatically a direct replacement.

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50. Five Same-Series Models — Expanded Comparison

Parameter	20F11ND2P1JA0NNNNN	20F11ND3P4JA0NNNNN	20F11ND5P0JA0NNNNN	20F11ND8P0JA0NNNNN	20F11ND011JA0NNNNN
Product Series	PowerFlex 753	PowerFlex 753	PowerFlex 753	PowerFlex 753	PowerFlex 753
Voltage	480 VAC	480 VAC	480 VAC	480 VAC	480 VAC
Output Current	2.1 A	3.4 A	5.0 A	8.0 A class	11.5 A
ND Rating	1 HP	2 HP	3 HP	5 HP	7.5 HP
HD Rating	1 HP	2 HP	3 HP	5 HP	7.5 HP
Frame	2	2	2	2	2
Cooling	Forced air	Forced air	Forced air	Forced air	Forced air
Embedded I/O	Yes	Yes	Yes	Yes	Yes
Filtering	Yes	Yes	Yes	Yes	Yes
CM Jumper	Installed	Installed	Installed	Installed	Installed
DB Transistor	Yes	Yes	Yes	Yes	Yes
Height	424.2 mm	424.2 mm	424.2 mm	424.2 mm	424.2 mm
Width	134.5 mm	134.5 mm	134.5 mm	134.5 mm	134.5 mm
Depth	212 mm	212 mm	212 mm	212 mm	212 mm
Weight	7.8 kg	7.8 kg	7.8 kg	7.8 kg	7.8 kg

The 20F11ND3P4JA0NNNNN is therefore positioned naturally between the 1 HP and 3 HP configurations in this comparison.

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51. Five Same-Brand Models — Expanded Comparison

Parameter	25B-D010N114	25B-D017N114	25B-D024N114	25B-D030N114	25B-E012N104
Product Series	PowerFlex 525	PowerFlex 525	PowerFlex 525	PowerFlex 525	PowerFlex 525
Voltage	380–480 VAC	380–480 VAC	380–480 VAC	380–480 VAC	525–600 VAC
Phase	3-phase	3-phase	3-phase	3-phase	3-phase
Current	10.5 A	17 A	24 A	30 A	12 A
ND Power	5 HP	10 HP	15 HP	20 HP	10 HP
HD Power	5 HP	10 HP	15 HP	15 HP	10 HP
Frame	B	C	D	D	C
Height	152 mm	220 mm	260 mm	260 mm	220 mm
Width	87 mm	109 mm	130 mm	130 mm	109 mm
Depth	172 mm	184 mm	212 mm	212 mm	184 mm
Weight	1.6 kg	2.3 kg	3.9 kg	3.9 kg	2.3 kg

These alternatives are more compact physically and may be attractive when cabinet space is limited.

However, the correct choice depends on the machine’s control architecture, motor requirements and desired drive capabilities.

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52. Why Choose the 20F11ND3P4JA0NNNNN?

The strongest reason to choose this model is not simply that it is a 2 HP drive.

Its value comes from the combination of:

3.4 A output capability

480 VAC three-phase operation

2 HP Normal Duty

2 HP Heavy Duty

PowerFlex 753 architecture

Frame 2 construction

Embedded I/O

Forced-air cooling

Filtered EMC configuration

Installed CM jumper

Internal dynamic-braking transistor

Open-type industrial enclosure

No factory-installed HIM

This makes it a practical choice for industrial machinery that needs more than basic motor starting and stopping.

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53. Overall Product Advantages

Advantage	Practical Meaning
PowerFlex 753 Platform	Broad industrial drive architecture
3.4 A Output	Suitable for small 480 VAC motors
2 HP ND / HD	Straightforward 2 HP-class selection
Frame 2	Standardized lower-power mechanical platform
Embedded I/O	Easier machine integration
Forced-Air Cooling	Active thermal management
Filtered Configuration	Better suited to EMC-conscious installations
CM Jumper Installed	Preconfigured EMC arrangement
DB Transistor	Supports dynamic-braking systems
No HIM	Suitable for centralized machine control
Open-Type Construction	Suitable for cabinet integration
Related Models Available	Easier platform standardization

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54. Technical Summary

Item	Final Specification
Model	20F11ND3P4JA0NNNNN
Brand	Allen-Bradley
Product Series	PowerFlex 753
Product Family	PowerFlex 750-Series
Product Type	AC Variable-Frequency Drive
Voltage Class	480 VAC
Input Voltage	380–480 VAC class
Input Phase	3-phase
Output Phase	3-phase
Output Current	3.4 A
Normal Duty	2 HP
Heavy Duty	2 HP
Normal Duty Power	Approx. 1.5 kW
Heavy Duty Power	Approx. 1.5 kW
Frame	Frame 2
Cooling	Forced air
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Embedded I/O	Yes
Input Configuration	AC input with precharge / DC terminals
EMC Filter	Filtered
CM Jumper	Installed
Dynamic Braking	Internal DB transistor
HIM	Blank / No HIM
Height	424.2 mm
Width	134.5 mm
Depth	212.0 mm
Approx. Weight	7.8 kg
Typical Applications	Conveyors, rollers, feeders, pumps, fans, blowers, packaging machinery
Typical Motor Class	2 HP

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55. Final Technical Evaluation

The 20F11ND3P4JA0NNNNN is a 2 HP-class, 480 VAC, three-phase PowerFlex 753 AC drive with a 3.4 A output rating and Frame 2 construction.

Its configuration includes embedded I/O, forced-air cooling, filtered EMC characteristics, an installed CM jumper, an internal dynamic-braking transistor and a blank/no-HIM arrangement.

From a mechanical standpoint, the Frame 2 open-type configuration is approximately 424.2 mm high × 134.5 mm wide × 212 mm deep, with an approximate weight of 7.8 kg.

The model is particularly suitable when a machine requires adjustable three-phase motor speed but also benefits from a standardized industrial drive platform.

Its application range covers small conveyors, material-handling systems, rollers, feeders, pumps, fans, blowers, packaging machinery and auxiliary machine mechanisms.

The internal dynamic-braking transistor makes it particularly interesting for machines where controlled deceleration is important, although the braking resistor itself must be evaluated separately.

The filtered configuration is also useful in installations where electromagnetic compatibility needs to be considered.

For machine builders, one of the most practical benefits is the availability of related models within the same series.

A machine family can use a 1 HP, 2 HP, 3 HP, 5 HP or higher-rated PowerFlex 753 configuration while maintaining a familiar drive architecture.

For the target model, the key data can be summarized as follows:

Brand: Allen-Bradley

Product Series: PowerFlex 753

Product Family: PowerFlex 750-Series

Product Type: AC Variable-Frequency Drive

Voltage: 480 VAC class

Input: 3-phase

Output: 3-phase

Output Current: 3.4 A

Normal Duty: 2 HP

Heavy Duty: 2 HP

Frame: Frame 2

Cooling: Forced air

Enclosure: IP20/IP00, NEMA/UL Open Type

Embedded I/O: Yes

Filtering: Filtered

CM Jumper: Installed

Dynamic Braking: Internal DB transistor

HIM: Blank / No HIM

Dimensions: 424.2 × 134.5 × 212 mm

Weight: Approx. 7.8 kg

Overall, the 20F11ND3P4JA0NNNNN is a solid choice for a small industrial motor when the application calls for more than basic ON/OFF control.

Its real strength lies in combining a 2 HP motor rating with the broader PowerFlex 753 industrial architecture, giving machine designers a scalable platform that can be extended to larger motor ratings when the equipment design evolves.