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Allen-Bradley 20F11NE027AA0NNNNN — PowerFlex 753 AC Drive

Detailed Product Specifications, Product Introduction, Applications, Advantages and Related Models

The 20F11NE027AA0NNNNN is a PowerFlex 753 AC Drive designed for three-phase industrial motor-control applications in the 600 VAC class.

This model has a 27 A normal-duty output rating and is rated for approximately 25 HP / 18.5 kW under normal-duty conditions and 20 HP / 15 kW under heavy-duty conditions. It uses a Frame 4 construction, placing it one frame size above the 22 A PowerFlex 753 model.

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

It is intended for industrial machines where reliable variable-speed motor control, controlled acceleration and deceleration, machine integration and flexible drive control are important.

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1. Product Basic Information

The key rating progression for the 600 V PowerFlex 753 range places this model at 27 A normal duty / 22 A heavy duty, with 25 HP normal duty / 20 HP heavy duty. It is also the point where the range moves from Frame 3 to Frame 4.

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2. Brand and Product Series

The product hierarchy can be summarized as:

Allen-Bradley → PowerFlex → PowerFlex 753 → 20F11NE027AA0NNNNN

The PowerFlex 753 family is designed for industrial motor-control applications that require adjustable speed, integrated I/O, flexible control functions and straightforward integration into machine automation systems.

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3. Product Introduction

The 20F11NE027AA0NNNNN is an industrial variable-frequency drive designed to regulate the operation of three-phase AC motors.

Instead of connecting the motor directly to a fixed-frequency AC supply, the drive generates a controlled output with adjustable frequency and voltage.

This allows the motor speed to be changed according to the machine’s operating requirements.

The result is a much more flexible motor-control system.

A conveyor can operate at different production speeds.

A pump can change speed according to process demand.

A fan can reduce its speed when full airflow is unnecessary.

A mixer can operate at different speeds during different production stages.

A material-handling machine can accelerate and decelerate in a controlled manner.

These are the types of applications for which the PowerFlex 753 architecture is particularly useful.

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4. Main Electrical Ratings

The published 600 V drive selection table lists the model at 27 A normal duty and 22 A heavy duty, with short-term ratings of 30 A / 33 A for one minute and 41 A / 59 A for three seconds, respectively.

These ratings are useful when evaluating applications that experience temporary increases in motor load.

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5. Detailed Technical Parameters

The exact catalog description identifies the model as a 27 A, 25 HP ND, 20 HP HD, 600 VAC, three-phase, Frame 4, filtered, CM-jumper-removed drive with embedded I/O, dynamic-braking transistor and no HIM.

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6. Dimensions and Weight

For this model, the Frame 4 physical construction should be considered separately from the smaller Frame 3 models.

A useful engineering distinction is:

For this catalog number, the reliable product-level identification is Frame 4. The exact dimensional and mass figures should be taken from the applicable mechanical drawing for the specific installation configuration rather than transferring dimensions from the smaller Frame 3 models.

This distinction is important because the 27 A model is the first 600 V model in this sequence to use Frame 4.

When designing a cabinet, it is therefore better to reserve the complete Frame 4 installation envelope rather than designing around only the electrical rating.

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7. 600 VAC Three-Phase Design

The 600 VAC three-phase configuration is one of the most important characteristics of the drive.

It is intended for industrial electrical systems using the 600 V class.

This is especially relevant in plants where higher-voltage three-phase motors are already part of the facility’s electrical architecture.

The voltage class should always be checked before selecting a drive.

A motor’s horsepower rating alone is not enough to determine the correct drive.

The following should all be considered:

• Motor voltage
• Motor current
• Motor horsepower
• Motor frequency
• Duty cycle
• Overload requirements
• Supply voltage
• Grounding arrangement
• Braking requirements

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8. 27 A Normal-Duty Rating

The model provides 27 A continuous output current under normal-duty conditions.

The corresponding motor rating is approximately:

25 HP / 18.5 kW

This makes the drive suitable for larger industrial machinery than the 22 A model.

Typical applications include:

• Large conveyors
• Industrial pumps
• Large fans
• Blowers
• Material-handling systems
• Mixers
• Processing equipment
• Production machinery
• Industrial rotating equipment

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9. 22 A Heavy-Duty Rating

Under heavy-duty operation, the drive is rated at approximately:

22 A / 20 HP / 15 kW

This rating is important for applications with more demanding load characteristics.

Such applications may involve:

• High starting torque
• High inertia
• Frequent acceleration
• Frequent deceleration
• Repeated overload
• Rapid speed changes
• Heavy material handling

The actual motor nameplate current should be checked against the heavy-duty rating before final selection.

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10. Overload Capability

The short-term current ratings provide useful information for machine design.

These values allow the drive to handle short-duration increases in motor demand.

However, the short-term ratings should not be treated as continuous operating ratings.

The machine’s actual duty cycle should be analyzed.

For applications with repeated overloads, frequent starts and stops, or high-inertia loads, the complete acceleration and deceleration profile should be considered.

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11. Frame 4 Construction

The 20F11NE027AA0NNNNN uses Frame 4 construction.

This is an important difference compared with the 600 V 22 A model.

The progression is approximately:

This progression shows that the 27 A model represents an important transition point in the 600 V PowerFlex 753 range.

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12. Air-Cooled Design

The drive uses forced-air cooling.

The power section generates heat during operation, especially when the motor is operating at high current.

The internal cooling system removes heat from the power electronics.

For cabinet installation, the following factors should be considered:

• Ambient temperature
• Cabinet temperature
• Airflow
• Fan operation
• Ventilation
• Heat from adjacent equipment
• Cabinet cooling capacity
• Spacing between drives

If several drives are installed in the same cabinet, their combined heat generation should be calculated.

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13. Open-Type IP20 Construction

The drive uses an Open Type / IP20 construction.

It is therefore intended to be installed inside an appropriate industrial enclosure.

The drive itself should not be regarded as a weatherproof standalone unit.

The cabinet should protect it from:

• Water
• Dust
• Oil
• Industrial contaminants
• Accidental contact
• Mechanical impact
• Excessive humidity

The required cabinet protection depends on the actual environment.

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14. Embedded I/O

Embedded I/O is one of the useful features of the PowerFlex 753 platform.

The drive can connect to a machine-control system without requiring separate external hardware for every basic signal.

Typical control signals can include:

• Run
• Stop
• Enable
• Fault
• Drive status
• Speed reference
• Digital inputs
• Analog inputs
• Process signals

This can reduce cabinet component count and simplify wiring.

For machine builders, this can also make standard drive-based machine designs easier to reproduce.

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15. Dynamic Braking

The model includes a DB transistor for dynamic braking.

Dynamic braking is useful when a motor needs to decelerate faster than natural coast-down would allow.

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

This causes the DC-bus voltage to rise.

The braking system can transfer this energy to an external resistor, where it is converted into heat.

Dynamic braking is particularly useful for:

• Conveyors
• Material-handling systems
• High-inertia machines
• Packaging machinery
• Rotating equipment
• Certain machine tools
• Machinery requiring rapid stopping

The transistor is integrated into the drive.

The external braking resistor must be selected according to the actual braking energy and duty cycle.

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16. EMC Filtering

The model uses an EMC-filtered configuration.

Variable-frequency drives operate using high-frequency switching devices.

This switching can generate electromagnetic noise.

The EMC filter helps control the propagation of this noise.

However, EMC performance also depends on installation practices.

Important considerations include:

• Grounding
• Shielding
• Motor cable selection
• Cable routing
• Cabinet bonding
• Separation of power and control wiring
• Correct termination

An EMC filter should therefore be considered as part of a complete EMC installation strategy.

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17. CM Jumper Removed Configuration

The catalog configuration includes:

Filtered, CM Jumper Removed

This is an important detail for replacement and system-integration work.

The common-mode capacitor arrangement affects the relationship between the drive’s electrical circuits and ground.

It can influence:

• Ground leakage
• Common-mode current
• EMC characteristics
• Grounding behavior
• Compatibility with the electrical system

For this reason, the exact catalog number should be checked before replacing an existing drive.

A drive with the same horsepower and current rating but a different CM configuration should not automatically be treated as an identical replacement.

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18. AC Input with Precharge and DC Terminals

The drive uses an AC input configuration with precharge and DC terminals.

The precharge circuit controls the initial charging of the DC-bus capacitors.

This prevents an uncontrolled high-current charging event when the drive is initially energized.

The DC terminals are also part of the drive’s electrical architecture.

These characteristics are useful to understand when designing:

• DC-bus arrangements
• Braking systems
• Drive cabinets
• Electrical protection
• Maintenance procedures

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19. No HIM Configuration

The model uses a Blank / No HIM configuration.

A Human Interface Module is not included in the basic configuration.

This is useful in automated systems where the drive is controlled by:

• PLC
• HMI
• SCADA
• Industrial network
• Remote operator station
• Central machine controller

For a large machine containing several drives, the no-HIM configuration can also make the overall cabinet arrangement cleaner.

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20. PID and Process Control

The PowerFlex 753 platform can be used in process-control applications involving feedback.

PID-type control is useful when motor speed needs to respond to a process variable.

Typical examples include:

• Pump pressure
• Water flow
• Fan pressure
• Airflow
• Process regulation
• Industrial fluid systems

A pump, for example, can increase speed when pressure falls and reduce speed when pressure reaches the desired setpoint.

This can provide smoother process control than simple on/off motor operation.

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21. Conveyor Applications

The 20F11NE027AA0NNNNN is well suited to medium and larger conveyor systems.

A conveyor motor may need to operate at different speeds during different stages of production.

The drive can provide:

• Adjustable speed
• Smooth acceleration
• Controlled deceleration
• Controlled stopping
• Overload handling
• Braking capability

This can reduce mechanical stress on:

• Belts
• Gearboxes
• Couplings
• Rollers
• Shafts
• Mechanical transmission components

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22. Pump Applications

The drive is also suitable for industrial pump systems.

Applications can include:

• Cooling-water pumps
• Process pumps
• Circulation pumps
• Transfer pumps
• Water-treatment systems
• Pressure-controlled systems

Variable-speed operation allows the pump motor to operate according to process requirements.

This is particularly useful where demand changes throughout the production cycle.

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23. Fan and Blower Applications

Fans and blowers are often operated at variable speeds.

The drive can adjust motor speed according to airflow or process requirements.

Typical applications include:

• Industrial ventilation
• Exhaust systems
• Cooling systems
• Air-handling systems
• Process blowers
• Dust-collection systems

The 25 HP normal-duty capacity provides sufficient range for substantially larger fans and blowers than the smaller PowerFlex 753 models.

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24. Material-Handling Applications

Material-handling machines can have considerable mechanical inertia.

The drive can control acceleration and deceleration while maintaining adjustable speed.

Typical applications include:

• Transfer conveyors
• Roller conveyors
• Feeders
• Material positioning
• Production-line transport
• Industrial handling systems

The dynamic-braking capability is particularly useful when stopping a moving load in a controlled manner.

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25. Packaging Machinery

The drive can be applied to larger packaging equipment and production lines.

Potential uses include:

• Feed systems
• Conveyor sections
• Rollers
• Material transport
• Product handling
• Auxiliary rotating machinery

Controlled acceleration can help reduce mechanical shock during machine startup.

Controlled deceleration can also improve machine stopping behavior.

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26. Mixer and Agitator Applications

Industrial mixers and agitators often require different speeds during different production stages.

The drive can provide variable-speed operation for:

• Mixing
• Blending
• Agitation
• Material processing
• Production control

Before selecting the drive, the motor’s torque requirement should be evaluated carefully.

A mixer with high starting torque may require heavy-duty sizing even if the motor’s nameplate horsepower appears relatively moderate.

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27. Industrial Processing Equipment

The drive can also be used in a broad range of industrial processing systems.

Potential applications include:

• Rotating machinery
• Process equipment
• Production lines
• Industrial fans
• Pumps
• Material-processing systems
• Machine auxiliaries
• General industrial motor loads

Its 25 HP normal-duty rating makes it suitable for larger machinery than the 15 HP and 20 HP models in the same voltage range.

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28. Main Product Advantages

28.1 27 A Output Capacity

The 27 A normal-duty rating is the most important electrical advantage of the model.

It provides a 25 HP normal-duty capacity, making it suitable for machines that exceed the 20 HP class.

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28.2 25 HP Normal-Duty Capacity

A 25 HP normal-duty rating covers a broad range of medium industrial machinery.

This includes larger:

• Conveyors
• Pumps
• Fans
• Blowers
• Material-handling systems
• Process machines

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28.3 20 HP Heavy-Duty Capacity

The 20 HP heavy-duty rating provides useful flexibility for applications with higher transient loads.

This is particularly important for machinery with higher starting torque or repeated acceleration.

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28.4 600 VAC Compatibility

The 600 V configuration allows the drive to be integrated into higher-voltage industrial motor systems.

This is especially useful where the facility already uses 600 V three-phase equipment.

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28.5 Frame 4 Design

The Frame 4 construction provides additional electrical capacity compared with the Frame 3 models immediately below it.

It is therefore a natural step when the motor requirement moves beyond the 20 HP range.

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28.6 Dynamic-Braking Transistor

The integrated DB transistor can simplify braking-system design.

This is especially useful when the machine requires controlled stopping.

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28.7 Embedded I/O

Embedded I/O simplifies integration with the machine-control system.

It can reduce the need for additional interface hardware.

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28.8 EMC Filtering

The filtered configuration provides a useful foundation for industrial EMC design.

Correct grounding and cable installation are still necessary.

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28.9 Flexible Control

The PowerFlex 753 architecture can support a broad range of industrial control requirements.

It can be integrated with PLCs, HMIs and industrial communication systems.

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29. Five Recommended Models from the Same Series

The following models are closely related PowerFlex 753 configurations in the 600 V range.

The 600 V PowerFlex 753 selection table shows the progression from 11 A through 32 A and confirms the corresponding normal-duty and heavy-duty ratings.

For practical selection, these five models provide a useful progression from approximately 10 HP through 30 HP normal-duty.

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30. Same-Series Capacity Comparison

The 27 A model is an important transition point because it increases capacity while also moving to Frame 4.

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31. Five Related Popular Models from the Same Brand

These models are related products rather than direct replacements.

The electrical voltage, current, frame, control architecture and option configuration should be checked before selecting an alternative.

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32. PowerFlex 753 vs. PowerFlex 525

The PowerFlex 525 is more suitable for smaller machines where compact physical size is important.

The PowerFlex 753 27 A model is more suitable for larger 600 V industrial machines.

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33. PowerFlex 753 vs. PowerFlex 755

For a 25 HP-class motor, the PowerFlex 753 provides a practical balance between capability and physical size.

The PowerFlex 755 family becomes more attractive when the application requires more advanced control, feedback, communication or substantially higher motor power.

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34. Application Selection Table

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35. Motor Selection Guidelines

When selecting a motor for this drive, the following parameters should be checked.

The motor nameplate current should be treated as one of the primary selection criteria.

A 25 HP motor with an unusually high current requirement may require a larger drive than a typical 25 HP motor.

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36. Cabinet Design Considerations

The transition to Frame 4 is particularly important for cabinet design.

Compared with the smaller Frame 3 models, the 27 A drive requires a different mechanical installation arrangement.

The cabinet designer should reserve sufficient room for:

• Drive mounting
• Incoming power cables
• Motor cables
• Control wiring
• I/O connections
• Grounding
• Communication cables
• Airflow
• Maintenance access
• Braking connections
• Cable bending radius

The cabinet should also account for the heat generated by the drive.

A cabinet that is large enough from a mechanical perspective may still be unsuitable if it cannot dissipate the generated heat.

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37. Cooling and Thermal Management

The forced-air cooling system requires adequate airflow.

The following should be considered during installation:

For a cabinet containing several drives, the total thermal load should be calculated.

The cabinet cooling system should be sized for the combined heat output rather than the target drive alone.

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38. Environmental Conditions

The drive is intended for a suitable industrial control-panel environment.

Typical conditions include:

The drive should be protected from direct water exposure and excessive contamination.

The surrounding enclosure should be selected according to the actual environmental conditions.

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39. Advantages for Machine Builders

The 20F11NE027AA0NNNNN is attractive for machine builders that need a 600 V drive around the 25 HP class.

The 27 A output rating provides a useful increase over the 22 A model.

The integrated I/O can simplify machine wiring.

The dynamic-braking transistor can reduce the complexity of the braking architecture.

The no-HIM configuration is convenient for machines that already have an external operator interface.

The EMC-filtered configuration also provides a useful starting point for industrial electrical design.

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40. Advantages for System Integrators

For system integrators, the PowerFlex 753 architecture provides a flexible motor-control platform.

It can be integrated into systems using:

• PLCs
• HMIs
• Industrial networks
• Analog control
• Digital control
• Process feedback
• PID functions
• Drive-status monitoring

This makes it suitable for production lines as well as standalone industrial machines.

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41. Advantages for Maintenance Teams

The complete catalog number contains important information about the drive’s configuration.

For replacement work, technicians should compare:

• Voltage
• Current
• Normal-duty rating
• Heavy-duty rating
• Frame
• EMC configuration
• CM jumper configuration
• Dynamic braking
• HIM configuration
• I/O
• Communication options
• Feedback options
• Mechanical dimensions

This is much safer than selecting a replacement based only on motor horsepower.

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42. Model Selection by Motor Size

This progression makes the 27 A model a natural selection for the 25 HP normal-duty class.

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43. Comparison with the 22 A Model

The key difference is not only the additional current.

The 27 A model also moves to Frame 4, so the mechanical installation must be evaluated when moving from the 22 A version to the 27 A version.

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44. Comparison with the 32 A Model

These two models share the same Frame 4 class but provide different current capacities.

If the motor current is close to the 27 A limit, the 32 A model may provide additional selection margin, depending on the application and duty requirements.

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45. Key Specifications at a Glance

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46. Overall Product Assessment

The 20F11NE027AA0NNNNN is a high-capacity configuration within the 600 V PowerFlex 753 range.

Its main electrical characteristics are 27 A normal-duty current, 22 A heavy-duty current, 25 HP normal-duty capacity and 20 HP heavy-duty capacity.

This makes it a strong choice for industrial machines that require more capacity than the 20 HP PowerFlex 753 model can provide.

One of its most important characteristics is the transition to Frame 4.

The smaller 600 V 11 A, 17 A and 22 A versions are Frame 3, while the 27 A model uses Frame 4.

That means the 20F11NE027AA0NNNNN should be considered not only as an electrical upgrade but also as a mechanical change when replacing a smaller drive.

The drive is well suited to conveyors, pumps, fans, blowers, material-handling equipment, packaging systems, mixers, agitators, process machinery and other medium-power industrial applications.

The 27 A normal-duty rating provides enough capacity for many 25 HP-class motors.

The 22 A heavy-duty rating provides a 20 HP heavy-duty class for applications where the machine experiences more demanding transient loads.

The short-term overload capability of 30 A normal duty / 33 A heavy duty for one minute and 41 A normal duty / 59 A heavy duty for three seconds is also useful when analyzing machine acceleration and transient load conditions.

The embedded I/O makes the drive practical for machine integration.

The internal dynamic-braking transistor is useful where controlled stopping is required.

The EMC-filtered configuration can support industrial EMC requirements when combined with correct grounding, shielding and cable routing.

The CM jumper removed configuration is also an important detail for replacement work.

The no-HIM configuration is particularly appropriate for machines controlled through an external PLC, HMI or industrial automation system.

For a smaller motor, the 11 A, 17 A or 22 A models may be more appropriate.

For a motor around the 25 HP normal-duty range, the 20F11NE027AA0NNNNN is a natural fit.

For approximately 30 HP normal-duty requirements, the 20F11NE032AA0NNNNN provides the next step in the same 600 V family.

For larger industrial systems requiring substantially more advanced control and scalability, a higher-capacity PowerFlex family can be considered.

Overall, the 20F11NE027AA0NNNNN can be characterized as a 600 VAC, 27 A, Frame 4 industrial AC variable-frequency drive with 25 HP normal-duty and 20 HP heavy-duty capability.

Its combination of higher current capacity, 600 V compatibility, Frame 4 construction, embedded I/O, dynamic braking, EMC filtering and flexible industrial control makes it a practical solution for medium-to-higher-capacity automated machinery.