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20G11ND052JA0NNNNN — PowerFlex 755 AC Drive Detailed Product Description

1. Product Overview

The 20G11ND052JA0NNNNN is a PowerFlex 755 series air-cooled AC variable frequency drive designed for three-phase industrial motor control.

This model is a 480 VAC, 3-phase drive with a 52 A normal-duty output rating. Its rated capacity is approximately 40 HP under normal-duty conditions and 30 HP under heavy-duty conditions.

The unit uses a Frame 4 mechanical construction and an IP20/IP00, NEMA/UL Open Type enclosure configuration. It is designed to be installed inside a suitable electrical cabinet or protected industrial enclosure.

The drive includes embedded EtherNet/IP communication, an internal dynamic-braking transistor, AC input with precharge and DC-bus terminals, EMC filtering, forced-air cooling, and a blank configuration without a local HIM keypad.

This configuration is intended for industrial machinery where adjustable motor speed, controlled acceleration and deceleration, network communication, diagnostics and flexible motor-control functions are required.

2. Brand and Product Series

Item	Information
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Bulletin / Product Group	20G
Product Type	AC Variable Frequency Drive
Cooling Type	Forced Air
Installation Type	Open Type / Cabinet Mounted
Main Voltage Class	480 VAC
Main Application	Industrial AC Motor Control

The 20G11ND052JA0NNNNN belongs to the PowerFlex 755 family.

The PowerFlex 755 series is intended for industrial applications that require more functionality than a basic variable-speed drive. It provides a combination of motor control, network communication, diagnostics, expansion capability and optional feedback or safety functions.

For applications involving conveyors, pumps, fans, blowers, mixers, material-handling machinery and general process equipment, the series provides a flexible platform for controlling three-phase AC motors.

3. Complete Model Identification

The complete catalog number is:

20G11ND052JA0NNNNN

The model designation identifies the basic drive family and several important configuration characteristics.

Model Section	General Description
20G	PowerFlex 755 drive family
11	Base drive configuration
N	Open-type enclosure configuration
D	480 VAC voltage class
052	52 A output-current class
J	Filtered configuration with CM jumper installed
A	Dynamic-braking transistor configuration
0	Blank / no HIM
NNNNN	Standard option positions

The most important electrical identifier in this model is 052, which corresponds to the 52 A normal-duty output-current class.

For motor selection, the actual motor nameplate current should always be compared with the drive’s applicable normal-duty or heavy-duty rating.

4. Main Product Parameters

Parameter	Specification
Model	20G11ND052JA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	AC Variable Frequency Drive
Input Voltage Class	480 VAC
Input Phase	3 Phase
Nominal Input Range	Approximately 380–480 VAC
Input Frequency	50/60 Hz class
Normal-Duty Output Current	52 A
Heavy-Duty Output Current	40 A
Normal-Duty Rating	40 HP
Heavy-Duty Rating	30 HP
Normal-Duty Power	Approximately 30 kW
Heavy-Duty Power	Approximately 22 kW
Frame Size	Frame 4
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Cooling	Forced Air
Communication	Embedded EtherNet/IP
Dynamic Braking	Internal DB Transistor
EMC Filtering	Filtered
CM Jumper	Installed
AC Input	With Precharge
DC Terminals	Included
HIM	Blank / No HIM
Mounting	Vertical
Height	Approx. 474 mm
Width	Approx. 222 mm
Depth	Approx. 212 mm
Weight (kg)	Approx. 14 kg
Approximate Product Weight	14 kg class

5. Electrical Parameters

Electrical Parameter	Specification
Model	20G11ND052JA0NNNNN
Voltage Class	480 VAC
Input Phase	3 Phase
Input Voltage Range	Approx. 380–480 VAC
Frequency	50–60 Hz class
Normal-Duty Current	52 A
Heavy-Duty Current	40 A
Normal-Duty Horsepower	40 HP
Heavy-Duty Horsepower	30 HP
Normal-Duty Power	Approx. 30 kW
Heavy-Duty Power	Approx. 22 kW
DC Bus Voltage Class	Approx. 513–650 VDC
Dynamic Braking	Yes
Braking Transistor	Internal
AC Input Precharge	Yes
DC Bus Terminals	Yes
EMC Filter	Yes
CM Jumper	Installed
Output	Variable-frequency 3-phase AC

The 52 A normal-duty rating is the primary current figure for applications operating under normal-duty conditions.

For heavy-duty applications, the applicable continuous rating is lower. Therefore, the selection should be based on the actual motor current and load profile rather than simply using the 40 HP figure.

6. Normal-Duty Rating

The normal-duty rating of this drive is:

52 A / 40 HP / approximately 30 kW

This makes it suitable for medium-power industrial motors.

Normal-duty applications generally include equipment where the load is relatively predictable and the motor does not continuously require the higher overload performance associated with severe-duty machinery.

Typical examples include:

• Pumps
• Fans
• Blowers
• Standard conveyors
• Air-handling equipment
• General process machinery
• Material-transfer systems
• Industrial production machinery

7. Heavy-Duty Rating

The heavy-duty rating is:

40 A / 30 HP / approximately 22 kW

This rating is important when the motor experiences greater mechanical loading, frequent acceleration, higher starting torque or more demanding operating conditions.

Typical heavy-duty applications can include:

• Heavy conveyors
• Mixers
• Material-handling machinery
• Machinery with high inertia
• Machines requiring frequent acceleration
• Machines requiring frequent deceleration
• Industrial equipment with significant torque fluctuations

When using the drive for heavy-duty operation, the motor’s full-load current should be checked against the 40 A heavy-duty continuous rating.

8. Physical Dimensions

The drive is a Frame 4 unit.

Approximate external dimensions are:

474 mm × 222 mm × 212 mm

The dimensions are normally considered as:

• Height: approximately 474 mm
• Width: approximately 222 mm
• Depth: approximately 212 mm

Mechanical Parameter	Specification
Model	20G11ND052JA0NNNNN
Frame Size	Frame 4
Height	Approx. 474 mm
Width	Approx. 222 mm
Depth	Approx. 212 mm
Overall Envelope	Approx. 474 × 222 × 212 mm
Cooling	Forced Air
Mounting Orientation	Vertical
Enclosure	IP20/IP00
Installation	Electrical Cabinet
Weight (kg)	Approx. 14 kg

The cabinet should not be designed using the drive dimensions alone.

Additional space is required for power cables, control wiring, communication cables, ventilation and service access.

9. Product Weight

The approximate product weight is:

14 kg

Weight Parameter	Value
Model	20G11ND052JA0NNNNN
Approximate Net Weight	14 kg
Weight (kg)	14 kg
Frame	Frame 4
Cooling	Forced Air
Enclosure	IP20/IP00

The actual shipping weight can be higher because packaging materials and accessories are not included in the approximate product weight.

The final installed weight can also vary if additional option modules are fitted.

10. Enclosure and Installation

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

This means the drive is generally intended to be installed inside an electrical cabinet rather than directly exposed to outdoor weather or washdown conditions.

The cabinet should provide suitable protection from:

• Water
• Excessive dust
• Conductive contamination
• Corrosive materials
• Mechanical impact
• Excessive humidity
• Foreign objects

The final enclosure rating of the complete installation depends on the cabinet design.

11. Cooling System

The 20G11ND052JA0NNNNN uses forced-air cooling.

Power semiconductor devices generate heat during normal operation. The cooling system moves air through the drive to transfer heat away from the internal power electronics.

Proper cabinet ventilation is therefore important.

The installation should consider:

• Ambient temperature
• Cabinet temperature
• Airflow
• Fan operation
• Drive loading
• Heat from nearby equipment
• Required clearance
• Cabinet ventilation

For multi-drive cabinets, the total heat dissipation of all installed equipment should be considered.

12. Embedded EtherNet/IP Communication

One of the major advantages of this model is its embedded EtherNet/IP capability.

The drive can be integrated into an industrial automation network without relying entirely on hardwired start/stop and speed-reference signals.

Typical network information can include:

Function	Typical Purpose
Start Command	Start the motor
Stop Command	Stop the motor
Speed Reference	Set motor speed
Direction	Forward / reverse
Output Frequency	Monitor operating speed
Output Current	Monitor motor load
Drive Status	Monitor operating condition
Fault Status	Troubleshooting
Alarm Status	Maintenance
Reset	Clear suitable faults
Parameter Data	Configuration and monitoring

This makes the drive suitable for machines where the motor controller needs to communicate with a PLC or higher-level control system.

13. Dynamic Braking

The model includes an internal dynamic-braking transistor.

Dynamic braking is particularly useful when the motor and driven machinery have significant rotating inertia.

When the motor decelerates, energy can flow back toward the drive’s DC bus. A braking system can then dissipate the excess energy through an appropriate braking resistor.

This can help provide controlled stopping.

Potential applications include:

• High-inertia conveyors
• Material-handling equipment
• Mixers
• Rotating machinery
• Rapid-deceleration equipment
• Machinery requiring controlled stopping

The braking resistor must be selected according to the actual braking energy, duty cycle and required stopping time.

14. EMC Filtering

The model is configured with filtering and a CM jumper installed.

EMC filtering can help control high-frequency electrical noise generated by variable frequency drive operation.

However, good EMC performance depends on the complete installation.

Important factors include:

• Motor cable type
• Cable length
• Shielding
• Grounding
• Cable routing
• Cabinet construction
• Separation between power and signal cables
• Correct motor grounding
• Proper termination

The integrated filtering should therefore be considered part of the overall EMC design rather than a replacement for proper installation practices.

15. Motor Control

The PowerFlex 755 platform supports advanced AC motor-control functions.

Depending on configuration and installed options, typical control methods include:

V/Hz Control

V/Hz control is suitable for relatively straightforward speed-control applications.

Common examples include:

• Fans
• Pumps
• Blowers
• Basic conveyors

Sensorless Vector Control

Sensorless vector control can provide improved torque and speed performance compared with basic V/Hz control.

It can be useful when the load changes during operation.

Flux Vector Control

Flux vector control provides more sophisticated control of motor flux and torque.

This is useful for applications requiring stronger dynamic performance and more accurate speed regulation.

Encoder-Based Control

Where the application requires feedback, an appropriate feedback module can be added.

This can be useful for applications where precise speed control is required.

16. Product Introduction

The 20G11ND052JA0NNNNN is designed to provide variable-speed control for three-phase AC motors in industrial environments.

A motor connected directly to a fixed-frequency electrical supply generally operates at a relatively fixed speed.

A variable frequency drive changes the frequency and voltage delivered to the motor.

This allows the motor to:

• Start smoothly
• Accelerate gradually
• Operate at different speeds
• Decelerate under controlled conditions
• Respond to changing process requirements
• Communicate operating data
• Provide fault and diagnostic information

The result is a more flexible motor-control system.

17. Main Applications

Conveyor Systems

Conveyor systems are one of the common applications for a drive of this capacity.

The drive can regulate conveyor speed according to production requirements.

Controlled acceleration can reduce mechanical shock on:

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

Pumps

The drive can regulate pump speed according to process demand.

Typical applications include:

• Water circulation
• Process-fluid transfer
• Cooling systems
• Industrial pumping
• Water-treatment equipment
• Pressure-control systems

Variable-speed operation can provide more flexibility than simple motor starting and stopping.

Fans

Industrial fans frequently need different airflow levels.

The drive can adjust motor speed according to the required airflow.

Applications include:

• Factory ventilation
• Exhaust systems
• Cooling equipment
• Air-handling systems
• Industrial ventilation

Blowers

Blowers can also benefit from adjustable speed.

The motor does not necessarily have to operate continuously at maximum speed.

The drive can adjust operating speed according to process demand.

Mixers

Mixers can have changing torque requirements throughout the production cycle.

The drive can provide controlled acceleration and adjustable operating speed.

For demanding mixer applications, the 40 A heavy-duty rating should be carefully compared with the motor’s actual full-load current.

Material Handling

Material-handling systems can benefit from:

• Adjustable speed
• Smooth acceleration
• Controlled deceleration
• Forward/reverse operation
• Network communication
• Drive diagnostics

Dynamic braking is particularly useful when loaded machinery must decelerate in a controlled manner.

18. Application Suitability

Application	Suitability	Main Benefit
Conveyors	Excellent	Adjustable speed and controlled acceleration
Pumps	Excellent	Variable flow and pressure control
Fans	Excellent	Adjustable airflow
Blowers	Excellent	Flexible speed control
Mixers	Very Good	Adjustable speed and torque
Material Handling	Excellent	Controlled movement
Packaging Equipment	Very Good	Network integration
Process Machinery	Excellent	Flexible motor control
High-Inertia Equipment	Very Good	Dynamic braking
General Industrial Machinery	Excellent	Broad motor-control capability

19. Main Product Advantages

19.1 40 HP Normal-Duty Capacity

The 40 HP normal-duty rating makes the drive suitable for a substantial range of medium-power industrial machinery.

It provides considerably more capacity than smaller variable frequency drives intended for small motors.

19.2 30 HP Heavy-Duty Capacity

The 30 HP heavy-duty rating provides additional application flexibility.

This makes the model more suitable for machines that experience higher torque demand or more demanding acceleration and deceleration conditions.

19.3 52 A Output Rating

The 52 A normal-duty output rating is an important selection parameter.

The actual motor nameplate current should be used when determining whether the drive is appropriately sized.

19.4 Embedded EtherNet/IP

Integrated industrial Ethernet communication allows the drive to become part of a larger control system.

This can simplify:

• Start/stop control
• Speed control
• Monitoring
• Diagnostics
• Fault handling
• Parameter management

19.5 Dynamic-Braking Transistor

The built-in braking transistor provides a convenient basis for dynamic-braking applications.

This is useful where the machine has substantial inertia or requires faster controlled stopping.

19.6 Modular Architecture

The PowerFlex 755 platform supports additional option modules.

Depending on the application, additional functions may include:

• Feedback
• Encoder interfaces
• Additional I/O
• Communication interfaces
• Safety functions
• Application-specific functionality

19.7 Advanced Diagnostics

Drive diagnostic information can help maintenance personnel identify operating problems.

Typical conditions include:

• Overcurrent
• Overvoltage
• Undervoltage
• Motor overload
• Ground fault
• Drive overtemperature
• Communication faults
• Configuration problems

20. Advantages in Industrial Automation

Feature	Practical Advantage
52 A Normal-Duty Output	Supports medium-power industrial motors
40 HP Normal Duty	Suitable for larger general-purpose machinery
30 HP Heavy Duty	Better suited to demanding loads
480 VAC	Common industrial voltage class
Frame 4	Suitable mechanical platform for this power range
Embedded EtherNet/IP	Direct network integration
Dynamic Braking	Controlled deceleration
EMC Filtering	Helps manage electrical interference
Forced-Air Cooling	Supports continuous industrial operation
Modular Options	Allows expansion
Diagnostics	Helps maintenance
Variable-Speed Control	Improves process flexibility

21. Mechanical Parameter Table

Parameter	Specification
Model	20G11ND052JA0NNNNN
Frame	Frame 4
Height	474 mm
Width	222 mm
Depth	212 mm
Dimensions	474 × 222 × 212 mm
Weight	Approx. 14 kg
Weight (kg)	Approx. 14 kg
Cooling	Forced Air
Mounting	Vertical
Enclosure	IP20/IP00
Construction	NEMA/UL Open Type
Installation	Protected Electrical Cabinet

22. Environmental Parameters

Environmental Parameter	Typical Specification
Model	20G11ND052JA0NNNNN
Standard Operating Ambient	Approximately 0–50 °C
Extended Temperature Capability	Application dependent
Storage Temperature	Approximately -40 to 70 °C
Relative Humidity	Non-condensing industrial environment
Cooling	Forced Air
Enclosure	IP20/IP00
Installation	Protected enclosure
Altitude	Derating may be required at higher elevations
Pollution Environment	Suitable industrial environment
Corrosive Atmosphere	Additional enclosure protection may be required

23. Control and Communication Parameters

Parameter	Specification
Model	20G11ND052JA0NNNNN
Start/Stop	Yes
Speed Reference	Yes
Forward/Reverse	Yes
Frequency Control	Yes
Current Monitoring	Yes
Status Monitoring	Yes
Fault Monitoring	Yes
Alarm Monitoring	Yes
EtherNet/IP	Embedded
Parameter Access	Yes
Dynamic Braking	Yes
Feedback Expansion	Available through appropriate option
I/O Expansion	Available through appropriate option
Safety Expansion	Available through suitable option

24. Recommended Same-Series or Closely Related Models

The following models are useful for comparison when selecting another drive from the same PowerFlex 755 family.

The exact option suffix should always be checked against the required input voltage, enclosure, filtering, braking, HIM and communication configuration.

No.	Model	Series	Voltage Class	Current / Capacity	Duty	Frame / Size	Dimensions	Weight (kg)
1	20G11ND040JA0NNNNN	PowerFlex 755	480 VAC	40 A	30 HP ND / 25 HP HD	Frame 3	Approx. 454 × 190 × 212 mm	~11.5
2	20G11ND043JA0NNNNN	PowerFlex 755	480 VAC	Higher current class	Around 30 HP class	Frame 3/4 class	Configuration dependent	~12–16
3	20G11ND052JA0NNNNN	PowerFlex 755	480 VAC	52 A	40 HP ND / 30 HP HD	Frame 4	Approx. 474 × 222 × 212 mm	~14
4	20G11ND065JA0NNNNN	PowerFlex 755	480 VAC	Higher current class	Higher-power application	Larger frame	Configuration dependent	~16+
5	20G11ND077JA0NNNNN	PowerFlex 755	480 VAC	Higher current class	Higher-power application	Larger frame	Configuration dependent	~20+

The 20G11ND040JA0NNNNN is particularly useful when the application is below the 40 HP normal-duty capacity of the target model.

The 20G11ND052JA0NNNNN is a good middle-to-upper choice for applications requiring approximately 40 HP normal-duty capability.

For larger motors, a higher-current PowerFlex 755 configuration should be selected according to the motor’s actual full-load current.

25. Same-Series Comparison

Parameter	20G11ND040JA0NNNNN	20G11ND043JA0NNNNN	20G11ND052JA0NNNNN	20G11ND065JA0NNNNN	20G11ND077JA0NNNNN
Series	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755
Voltage Class	480 VAC	480 VAC	480 VAC	480 VAC	480 VAC
Current Class	40 A	Higher than 40 A	52 A	Higher than 52 A	Higher than 52 A
Normal-Duty Capacity	30 HP	Around 30 HP class	40 HP	Higher	Higher
Heavy-Duty Capacity	25 HP	Around 25 HP class	30 HP	Higher	Higher
Frame	Frame 3	Frame dependent	Frame 4	Larger	Larger
EtherNet/IP	Yes	Yes	Yes	Yes	Yes
Dynamic Braking	Yes	Yes	Yes	Yes	Yes
EMC Filtering	Yes	Yes	Yes	Yes	Yes
Cooling	Forced Air	Forced Air	Forced Air	Forced Air	Forced Air
Weight	~11.5 kg	~12–16 kg	~14 kg	~16+ kg	~20+ kg

26. Five Same-Brand Popular Model Recommendations

The following are useful models to consider when looking at other products from the same brand.

They are not all direct replacements for the 20G11ND052JA0NNNNN. They cover different power ranges and product families.

No.	Model	Product Series	Voltage Class	Approx. Capacity	Typical Application	Cooling	Dimensions	Weight (kg)
1	25B-D010N104	PowerFlex 525	480 VAC class	Small/Medium	Pumps, fans, conveyors	Air	Model dependent	~3–5
2	25B-D017N104	PowerFlex 525	480 VAC class	Medium	General machinery	Air	Model dependent	~4–6
3	25B-D027N114	PowerFlex 525	480 VAC class	Medium	Conveyors, pumps	Air	Model dependent	~5–8
4	20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	Higher power	Industrial machinery	Forced Air	Model dependent	~20+
5	20G11ND052JA0NNNNN	PowerFlex 755	480 VAC	40 HP ND / 30 HP HD	Advanced industrial machinery	Forced Air	Approx. 474 × 222 × 212 mm	~14

27. Popular Model Comparison

Parameter	25B-D010N104	25B-D017N104	25B-D027N114	20F11ND077AA0NNNNN	20G11ND052JA0NNNNN
Product Family	PowerFlex	PowerFlex	PowerFlex	PowerFlex	PowerFlex
Series	525	525	525	753	755
Voltage	480 V class	480 V class	480 V class	480 V class	480 V
Power Range	Small/Medium	Small/Medium	Medium	Higher	Medium/High
Network Capability	Yes	Yes	Yes	Yes	Embedded EtherNet/IP
Dynamic Braking	Configuration dependent	Configuration dependent	Configuration dependent	Available	Yes
Cooling	Air	Air	Air	Forced Air	Forced Air
Application	General Machinery	General Machinery	Conveyors/Pumps	Industrial Machinery	Advanced Industrial Machinery
Frame	Compact	Compact	Compact	Larger	Frame 4
Weight (kg)	~3–5	~4–6	~5–8	~20+	~14

28. Why Choose the 20G11ND052JA0NNNNN?

The main reason to select this model is the combination of power capacity and advanced drive functionality.

It provides a substantial 52 A normal-duty output, while still offering the communication and control features expected from a higher-level industrial drive.

For a machine requiring approximately 40 HP normal-duty capacity, the model provides a strong balance between electrical capacity and functionality.

The built-in EtherNet/IP interface is particularly useful for networked machinery.

The internal dynamic-braking transistor adds another practical advantage for applications where controlled stopping is important.

The Frame 4 construction also provides a standardized physical platform for this power range.

29. Advantages for Machine Builders

For machine builders, the drive provides several useful characteristics.

First, it can be incorporated into a networked automation architecture.

Second, its modular architecture allows additional functions to be added when required.

Third, the drive supports multiple motor-control strategies.

Fourth, its diagnostic information can help reduce troubleshooting time.

Fifth, dynamic braking can be used where the machine needs controlled deceleration.

This combination makes the product suitable for machinery that may be upgraded or expanded during its service life.

30. Advantages for Maintenance Teams

Maintenance personnel can benefit from the drive’s diagnostic and communication capabilities.

Instead of relying only on physical inspection, technicians can examine:

• Drive status
• Current
• Frequency
• Fault conditions
• Alarm conditions
• Communication status
• Motor operating information

This can make troubleshooting more structured.

For production equipment, faster fault identification can help reduce unnecessary downtime.

31. Advantages for System Integrators

The embedded network interface allows the drive to be integrated into a larger industrial control architecture.

A typical system can contain:

• PLC
• HMI
• AC drives
• Remote I/O
• Sensors
• Motor starters
• Safety equipment

The drive can exchange commands and status information with the control system.

This reduces the need for separate hardwired signals for every basic control function.

32. Energy Efficiency Potential

Variable-speed operation can provide significant energy-saving potential when the application is suitable.

This is particularly relevant for:

• Pumps
• Fans
• Blowers
• Air-handling equipment

When the process does not require full motor speed, reducing motor speed can reduce the power required by the machine.

Actual energy savings depend on:

• Motor efficiency
• Load characteristics
• Operating hours
• Speed profile
• Mechanical efficiency
• Process requirements

Therefore, the drive should be considered an energy-management tool rather than an automatic guarantee of energy savings.

33. Installation Considerations

The following items should be considered during installation:

1. Confirm the motor’s rated voltage.
2. Confirm the motor’s full-load current.
3. Confirm whether the machine requires normal-duty or heavy-duty operation.
4. Provide suitable cabinet ventilation.
5. Maintain appropriate clearance around the drive.
6. Use suitable motor cabling.
7. Follow proper grounding practices.
8. Separate sensitive control wiring from high-power wiring where appropriate.
9. Consider braking requirements.
10. Configure the network connection correctly.
11. Confirm the required acceleration and deceleration times.
12. Confirm environmental conditions.
13. Verify all drive parameters before commissioning.

34. Final Technical Summary

Category	Final Specification
Model	20G11ND052JA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Voltage	480 VAC
Input	3 Phase
Normal-Duty Current	52 A
Heavy-Duty Current	40 A
Normal-Duty Rating	40 HP
Heavy-Duty Rating	30 HP
Normal-Duty Power	Approx. 30 kW
Heavy-Duty Power	Approx. 22 kW
Frame	Frame 4
Cooling	Forced Air
Enclosure	IP20/IP00
Construction	NEMA/UL Open Type
Communication	Embedded EtherNet/IP
Dynamic Braking	Internal DB Transistor
EMC Filter	Filtered
CM Jumper	Installed
AC Input	With Precharge
DC Terminals	Yes
HIM	Blank / No HIM
Height	Approx. 474 mm
Width	Approx. 222 mm
Depth	Approx. 212 mm
Dimensions	Approx. 474 × 222 × 212 mm
Weight	Approx. 14 kg
Weight (kg)	Approx. 14 kg
Typical Applications	Pumps, fans, conveyors, blowers, mixers, material handling
Main Advantage	High-capacity, networked, expandable industrial motor control

35. Conclusion

The 20G11ND052JA0NNNNN is a high-capability PowerFlex 755 AC drive intended for medium-power industrial motor-control applications.

Its main electrical characteristics are 480 VAC, three-phase input, 52 A normal-duty output, 40 HP normal-duty capacity and 30 HP heavy-duty capacity.

The drive uses a Frame 4 structure with approximate dimensions of 474 mm in height, 222 mm in width and 212 mm in depth. Its approximate product weight is 14 kg.

The combination of embedded EtherNet/IP, forced-air cooling, dynamic-braking transistor, EMC filtering, AC input with precharge, DC terminals and modular expansion capability makes it a practical solution for industrial machinery.

The drive is especially well suited to conveyors, pumps, fans, blowers, mixers, material-handling equipment, process machinery and other applications requiring controlled three-phase AC motor speed.

For applications close to the upper end of the 40 HP normal-duty rating, the 52 A current capacity provides useful operating margin compared with smaller models.

For heavy-duty applications, however, the 40 A continuous heavy-duty rating should be treated as the important selection limit.

The most important point during final selection is not horsepower alone. The drive should be matched to the motor’s actual rated voltage, full-load current, overload requirement, duty cycle, acceleration requirements, deceleration requirements, braking requirements, ambient conditions and communication architecture.

Overall, the 20G11ND052JA0NNNNN is best viewed as a flexible industrial AC drive for applications where reliable variable-speed operation, network connectivity, controlled braking and expandable automation functions are more important than simply providing basic motor speed adjustment.