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PowerFlex 755 AC Drive — 20G11NC015JA0NNNNN

1. Product Overview

The 20G11NC015JA0NNNNN is an industrial AC variable frequency drive belonging to the Allen-Bradley PowerFlex 755 series.

It is designed for three-phase AC motor control in industrial automation systems where adjustable speed, controlled acceleration and deceleration, motor protection, network communication and flexible operating control are required.

The drive is intended for medium-duty industrial machinery and can be used in applications such as conveyors, pumps, fans, blowers, mixers, material-handling equipment, process machinery and general-purpose motor-driven equipment.

The NC015 configuration represents a higher-voltage class and approximately 15 A current class within the PowerFlex 755 product family.

The unit is designed as a panel-mounted industrial drive and uses forced-air cooling.

Its architecture allows the drive to operate as part of a larger automation system rather than functioning only as an independent motor controller.

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2. Basic Product Identification

Parameter	Specification
Model	20G11NC015JA0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Category	AC Variable Frequency Drive
Drive Type	Industrial AC Drive
Voltage Class	400 VAC class
Input Phase	Three Phase
Output Phase	Three Phase
Current Class	15 A
Cooling	Forced Air
Mounting	Panel Mount
Enclosure Type	Open Type
Communication	Embedded EtherNet/IP
Dynamic Braking	Internal DB Transistor
Input Filtering	Filtered configuration
CM Jumper	Installed configuration
Operator Interface	Blank / No HIM
Frame	Frame 2 class
Approx. Weight (kg)	Approximately 11–13 kg class
Approx. Dimensions	Approximately 300 × 185 × 220 mm class

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3. Brand

Brand: Allen-Bradley

The product is part of the Allen-Bradley industrial automation product portfolio.

Within that portfolio, the PowerFlex family is used for variable-frequency motor control.

The model 20G11NC015JA0NNNNN belongs specifically to the PowerFlex 755 series.

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4. Product Series

Series: PowerFlex 755

The PowerFlex 755 is an industrial variable-frequency-drive platform intended for applications that require more control flexibility and automation integration than a basic standalone motor drive.

The series is designed around modular industrial motor control.

Depending on the exact catalog-number configuration, PowerFlex 755 drives can include different voltage ratings, current capacities, communication functions, braking arrangements, enclosure configurations and operator-interface options.

The 20G11NC015JA0NNNNN is a specific configuration within this family.

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5. Main Electrical Parameters

Parameter	Value
Model	20G11NC015JA0NNNNN
Input Voltage Class	400 VAC
Typical Input Voltage Range	Approximately 380–480 VAC
Input Phase	3 Phase
Input Frequency	Approximately 50/60 Hz
Output Phase	3 Phase
Rated Output Current	Approximately 15 A
Normal-Duty Power Class	Approximately 7.5 kW / 10 HP class
Heavy-Duty Power Class	Approximately 5.5 kW / 7.5 HP class
Output Voltage	Variable
Output Frequency	Variable
Motor Speed Control	Yes
Acceleration Control	Yes
Deceleration Control	Yes
Torque Control	Yes
Dynamic Braking	Supported
Input Filtering	Included configuration
DC Bus	Available
Communication	Embedded EtherNet/IP
Cooling	Forced Air

The exact motor horsepower rating should always be matched against the motor’s actual full-load current and the required normal-duty or heavy-duty operating profile.

For industrial motor selection, current is normally more useful than horsepower alone because different motors can have different current requirements for the same nominal horsepower.

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6. Voltage Characteristics

The 20G11NC015JA0NNNNN is associated with the higher-voltage PowerFlex 755 class used for industrial three-phase motor systems.

A typical system in this voltage class is based around a 400/480 V-class three-phase supply.

This makes the drive suitable for industrial electrical systems where a higher-voltage motor supply is preferred over a 200–240 V system.

Voltage Parameter	Specification
Model	20G11NC015JA0NNNNN
Voltage Class	400 VAC class
Typical Industrial Supply	380–480 VAC class
Phase	Three Phase
Frequency	50/60 Hz class
Output	Variable-voltage, variable-frequency
Motor Type	Three-phase AC motor
Grounding	Required
Input Protection	Required according to installation

The actual incoming voltage should be checked before installation.

The drive should not be selected solely from the catalog number without confirming the electrical system and motor nameplate.

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7. Current Rating

The model is in the 15 A output-current class.

This rating is one of the most important characteristics when selecting the drive.

The connected motor must have a full-load current that is compatible with the drive’s rating under the intended duty category.

Current Parameter	Approximate Specification
Model	20G11NC015JA0NNNNN
Output Current Class	15 A
Input Current	Application dependent
Motor Current	Must remain within drive rating
Overload Capacity	Application and duty dependent
Normal-Duty Motor Class	Approximately 7.5 kW
Heavy-Duty Motor Class	Approximately 5.5 kW

For a high-inertia or high-starting-torque machine, the heavy-duty rating should be considered rather than simply selecting the drive according to motor horsepower.

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8. Power Rating

The drive is approximately in the 7.5 kW / 10 HP normal-duty class.

For heavier-duty applications, the practical rating is approximately 5.5 kW / 7.5 HP.

The distinction is important.

A pump or fan with relatively predictable load characteristics may be suitable for normal-duty operation.

A conveyor, mixer or other constant-torque machine with frequent acceleration and high torque demand may require the heavy-duty rating.

Duty	Approximate Rating
Model	20G11NC015JA0NNNNN
Normal Duty	7.5 kW
Normal Duty	10 HP
Heavy Duty	5.5 kW
Heavy Duty	7.5 HP
Output Current	Approximately 15 A

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9. Product Construction

The drive is designed as an industrial panel-mounted device.

The main power electronics are housed within a compact frame designed for installation inside an electrical cabinet.

Forced-air cooling is used to remove heat generated by the switching devices and power electronics.

The cabinet therefore needs appropriate ventilation and thermal management.

Mechanical Parameter	Approximate Specification
Model	20G11NC015JA0NNNNN
Frame	Frame 2 class
Mounting	Panel Mount
Cooling	Forced Air
Enclosure	Open Type
Protection Class	IP20/IP00 class
Installation	Electrical cabinet
Orientation	Vertical
Approx. Height	300 mm
Approx. Width	185 mm
Approx. Depth	220 mm
Approx. Dimensions	300 × 185 × 220 mm
Approx. Weight (kg)	11–13 kg

The dimensions above are presented as an engineering-level approximation rather than a fabrication drawing.

For a cabinet or mounting-panel drawing, the exact mechanical drawing for the specific hardware revision should be used.

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10. Weight

The approximate drive weight is in the 11–13 kg range.

The final shipping weight will be higher because packaging materials, documentation and accessories may add additional mass.

Weight Item	Approximate Value
Model	20G11NC015JA0NNNNN
Drive Weight	Approximately 11–13 kg
Weight (kg)	Approximately 11–13 kg
Packaging	Not included
Cabinet	Not included
External Resistor	Not included
Additional Accessories	Not included

The weight should be considered when designing the mounting plate and when installing the drive in a cabinet.

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11. Dimensions

The 20G11NC015JA0NNNNN is approximately in the following mechanical size class:

300 mm × 185 mm × 220 mm

Dimension	Approximate Value
Model	20G11NC015JA0NNNNN
Height	Approx. 300 mm
Width	Approx. 185 mm
Depth	Approx. 220 mm
Overall Size	Approx. 300 × 185 × 220 mm
Frame	Frame 2 class
Mounting	Vertical panel mounting
Weight (kg)	Approx. 11–13 kg

Cabinet space should be larger than the basic product envelope.

Clearance may be required for power terminals, control wiring, cooling airflow and maintenance access.

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12. Cooling System

The drive uses forced-air cooling.

The cooling fans move air through the drive to remove heat generated by the power electronics.

Proper airflow is important because the drive’s internal temperature affects reliability and operating life.

The cabinet should therefore be designed to prevent hot air from accumulating around the drive.

Cooling Parameter	Specification
Model	20G11NC015JA0NNNNN
Cooling Method	Forced Air
Cooling Fan	Yes
Cabinet Ventilation	Required
Airflow	Must remain unobstructed
Installation Position	Normally vertical
Heat Dissipation	Must be considered in cabinet design
Ambient Temperature	Approximately 0–50 °C class

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13. EtherNet/IP Communication

One of the major advantages of this configuration is its integration capability.

The drive can communicate with a supervisory or machine-control system through embedded EtherNet/IP.

This allows the drive to exchange commands and operating information with a controller.

Typical information includes:

• Start command
• Stop command
• Speed reference
• Direction command
• Actual speed
• Output current
• Drive status
• Fault status
• Alarm status
• Reset command

Communication Function	Capability
Model	20G11NC015JA0NNNNN
EtherNet/IP	Embedded
Start/Stop	Supported
Speed Reference	Supported
Status Monitoring	Supported
Fault Monitoring	Supported
Alarm Information	Supported
Drive Reset	Supported
Networked Control	Supported

This makes the drive particularly useful in automated production lines.

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14. Dynamic Braking

The drive configuration includes an internal dynamic-braking transistor.

Dynamic braking is useful when the motor needs to decelerate rapidly or when the driven mechanical system contains significant rotational inertia.

During deceleration, energy can flow from the motor back into the drive’s DC bus.

A braking resistor can dissipate this energy when required.

Braking Parameter	Specification
Model	20G11NC015JA0NNNNN
Dynamic Braking	Supported
DB Transistor	Internal
External Braking Resistor	Application dependent
Main Purpose	Controlled deceleration
Suitable Loads	High-inertia loads
Typical Applications	Conveyors, mixers, rotating machinery

The braking resistor must be selected according to the actual motor size, inertia, stopping time and braking frequency.

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15. Motor Control

The PowerFlex 755 platform supports sophisticated AC motor control.

Depending on the application and programmed configuration, the drive can provide different levels of motor-control performance.

V/Hz Control

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

Typical examples include:

• Fans
• Blowers
• Pumps
• Simple conveyors
• General-purpose machinery

Sensorless Vector Control

Sensorless vector control provides improved torque and speed response compared with simple V/Hz operation.

It is useful for applications where the motor needs better low-speed torque and load response.

Vector-Based Control

More advanced vector-control methods can be used when improved torque regulation and dynamic response are required.

The actual performance depends on motor parameters, tuning and machine characteristics.

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16. Product Applications

16.1 Conveyor Systems

The drive is suitable for many industrial conveyor systems.

A conveyor does not always need to run at a single fixed speed.

The drive can allow the motor speed to be adjusted according to production requirements.

Controlled acceleration can also reduce mechanical shock.

Typical applications include:

• Packaging conveyors
• Assembly conveyors
• Material-transfer systems
• Production-line conveyors
• Warehouse conveyors
• Processing conveyors

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17. Pump Applications

The drive can be used for industrial pump systems.

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

Potential applications include:

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

The drive can provide smoother starting than direct-on-line motor operation.

It can also reduce the need for mechanical throttling in suitable variable-flow applications.

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18. Fan and Blower Applications

Fans and blowers are common variable-speed applications.

The drive can reduce motor speed when less airflow is required.

Typical uses include:

• Factory ventilation
• Exhaust systems
• Cooling systems
• Air-handling systems
• Process ventilation
• Industrial blowers

For variable-torque loads, speed control can provide significant energy-saving potential.

Actual savings depend on the machine and operating profile.

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19. Mixer Applications

Industrial mixers often need adjustable speed.

The required speed may change depending on:

• Material viscosity
• Product quantity
• Mixing stage
• Process temperature
• Production recipe

The drive can provide controlled motor operation throughout the production process.

For high-torque mixing applications, the heavy-duty rating should be carefully considered.

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20. Material-Handling Applications

The drive can be applied to a wide range of material-handling systems.

Examples include:

• Feeders
• Conveyors
• Transfer machines
• Packaging equipment
• Automated material-handling machinery
• Production-line systems

The combination of variable speed, network control and diagnostics makes the drive particularly useful in automated machinery.

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21. Industrial Processing Equipment

The drive can also be applied to general process machinery.

Potential examples include:

• Processing lines
• Rotating equipment
• Production machinery
• Auxiliary machinery
• Mechanical handling systems
• Industrial ventilation
• Manufacturing equipment

The final selection should always be based on the motor current and load characteristics.

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22. Product Advantages

22.1 Adjustable Motor Speed

The most fundamental advantage is variable-speed motor control.

The motor does not have to operate continuously at its fixed rated speed.

The drive can adjust output frequency according to the machine’s requirements.

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22.2 Controlled Acceleration

The drive can gradually increase motor speed.

This can reduce mechanical shock and improve the smoothness of machine operation.

Benefits can include:

• Reduced belt stress
• Reduced coupling stress
• Reduced gearbox shock
• Smoother product movement
• Improved machine starting behavior

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23. Controlled Deceleration

The drive can also control the motor’s stopping process.

This is especially useful for conveyor systems and rotating machinery.

Controlled deceleration can reduce sudden mechanical forces.

Where fast stopping is necessary, the dynamic-braking capability can provide additional control.

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24. Industrial Network Integration

Embedded EtherNet/IP allows the drive to communicate with a larger control system.

This reduces the need to treat the motor drive as a completely independent device.

A controller can monitor operating status and issue speed or start/stop commands.

This is valuable in automated production environments.

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25. Diagnostic Capability

Drive diagnostics can help maintenance personnel identify abnormal conditions.

Typical monitored conditions include:

• Overcurrent
• Overvoltage
• Undervoltage
• Motor overload
• Drive temperature
• Ground faults
• Communication faults
• DC-bus abnormalities

This can shorten troubleshooting time.

Instead of immediately replacing components, technicians can first examine the drive’s operating and fault information.

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26. Dynamic Braking Advantage

The internal braking transistor is particularly useful for machines with high inertia.

Examples include:

• Large rotating assemblies
• Conveyors
• Mixers
• Centrifugal equipment
• Material-handling machinery

When correctly configured with an appropriate braking resistor, the drive can dissipate regenerative energy during deceleration.

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27. Flexible Application Range

The PowerFlex 755 platform is not limited to a single type of industrial machine.

The same general drive architecture can be adapted to many different applications.

This makes it useful for OEM machinery and plant automation systems where different machines require different motor-control strategies.

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28. Energy-Saving Potential

A variable-frequency drive can provide energy-saving opportunities by reducing motor speed when full capacity is not required.

This is particularly useful for:

• Fans
• Blowers
• Pumps

For example, if a fan does not need to operate at full airflow continuously, the drive can reduce motor speed.

The actual energy savings depend on the load profile and mechanical design.

Therefore, the drive should be viewed primarily as a control device, with energy savings being an application-dependent benefit.

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29. Motor Protection

The drive provides electronic monitoring of the motor and drive operating conditions.

Correct motor data should be programmed into the drive.

Important motor information includes:

• Rated voltage
• Rated current
• Rated frequency
• Rated speed
• Rated horsepower
• Motor power factor
• Motor characteristics

Correct setup improves motor-control performance and protection.

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30. Installation Requirements

The drive should be installed inside a suitable electrical cabinet or protected panel.

The installation should provide:

• Correct incoming power
• Proper grounding
• Appropriate overcurrent protection
• Correct motor cable sizing
• Adequate cooling
• Sufficient wiring space
• Proper control wiring
• Appropriate EMC practices

Installation Item	Requirement
Model	20G11NC015JA0NNNNN
Mounting	Vertical panel mounting
Cabinet	Recommended
Cooling	Forced Air
Grounding	Required
Power Wiring	Properly sized
Motor Wiring	Properly sized
Control Wiring	Properly routed
Ventilation	Required
Maintenance Clearance	Required
Environmental Protection	Required where necessary

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31. Environmental Characteristics

The drive is intended for controlled industrial environments.

A typical operating temperature range is approximately 0–50 °C, subject to the exact installation and derating conditions.

High ambient temperatures may require derating or additional cooling.

Environmental Parameter	Approximate Specification
Model	20G11NC015JA0NNNNN
Operating Temperature	Approximately 0–50 °C
Storage Temperature	Approximately −40–70 °C
Humidity	Approximately 5–95%, non-condensing
Cooling	Forced Air
Condensation	Avoid
Corrosive Atmosphere	Requires additional protection
Conductive Dust	Requires appropriate enclosure
Water Exposure	Requires additional protection

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32. Five Same-Series or Related Models

The following models are useful for comparison within the PowerFlex 755 family.

The exact ratings of each catalog number should be checked against the intended motor and duty class before replacement.

Model	Series	Voltage Class	Current Class	Approx. Power Class	Frame	Approx. Dimensions	Weight (kg)
20G11NC010JA0NNNNN	PowerFlex 755	400 VAC class	10 A	Approx. 5.5 kW ND	Frame 2	Approx. 300 × 185 × 220 mm class	Approx. 11–13
20G11NC015JA0NNNNN	PowerFlex 755	400 VAC class	15 A	Approx. 7.5 kW ND	Frame 2	Approx. 300 × 185 × 220 mm class	Approx. 11–13
20G11NC022JA0NNNNN	PowerFlex 755	400 VAC class	22 A	Approx. 11 kW ND class	Frame 3	Larger Frame 3 class	Approx. 20–23
20G11NC027JA0NNNNN	PowerFlex 755	400 VAC class	27 A	Approx. 15 kW ND class	Frame 3	Larger Frame 3 class	Approx. 20–23
20G11NC034JA0NNNNN	PowerFlex 755	400 VAC class	34 A	Approx. 18.5 kW ND class	Frame 3/4 class	Larger frame	Approx. 25+

The 20G11NC010JA0NNNNN is the most natural lower-capacity comparison.

The 20G11NC022JA0NNNNN, 20G11NC027JA0NNNNN and 20G11NC034JA0NNNNN are more appropriate when the motor current or power requirement is higher.

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33. Same-Series Comparison

Feature	20G11NC010JA0NNNNN	20G11NC015JA0NNNNN	20G11NC022JA0NNNNN	20G11NC027JA0NNNNN	20G11NC034JA0NNNNN
Voltage Class	400 V	400 V	400 V	400 V	400 V
Current Class	10 A	15 A	22 A	27 A	34 A
Power Class	~5.5 kW	~7.5 kW	~11 kW	~15 kW	~18.5 kW
Series	PF755	PF755	PF755	PF755	PF755
Cooling	Forced Air	Forced Air	Forced Air	Forced Air	Forced Air
EtherNet/IP	Yes	Yes	Yes	Yes	Yes
Dynamic Braking	Supported	Supported	Supported	Supported	Supported
Dimensions	Compact	Compact	Larger	Larger	Larger
Weight (kg)	~11–13	~11–13	~20–23	~20–23	~25+

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34. Five Same-Brand Popular Models

For a broader comparison within the same brand, the following models represent commonly used drive families covering compact, general-purpose and higher-performance applications.

Model	Series	Voltage Class	Approx. Current / Power Class	Typical Application	Approx. Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	480 V class	10 A class	Pumps, fans, conveyors	Compact	Approx. 3–5
25B-D017N104	PowerFlex 525	480 V class	17 A class	General machinery	Compact	Approx. 4–6
25B-D027N114	PowerFlex 525	480 V class	27 A class	Industrial machinery	Compact	Approx. 5–8
20F11ND077AA0NNNNN	PowerFlex 753	480 V class	77 A class	Medium industrial equipment	Larger frame	Approx. 20+
20G11NC015JA0NNNNN	PowerFlex 755	400 V class	15 A / 7.5 kW class	Medium industrial motor control	Approx. 300 × 185 × 220 mm class	Approx. 11–13

These models are not automatically interchangeable.

Voltage, current, motor-control requirements, enclosure type, braking, communication and physical dimensions must all be considered when selecting a replacement.

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35. Application Comparison

Application	Recommended Drive Type	Main Reason
Small fan	25B-D010N104	Compact variable-speed control
Small pump	25B-D017N104	General-purpose speed control
General machinery	25B-D027N114	Compact industrial drive
Medium motor	20G11NC015JA0NNNNN	15 A / 7.5 kW class
Larger industrial motor	20F11ND077AA0NNNNN	Higher current capacity
High-performance machinery	20G11NC015JA0NNNNN	PowerFlex 755 architecture
High-inertia conveyor	20G11NC015JA0NNNNN	Dynamic braking capability
Networked production line	20G11NC015JA0NNNNN	Embedded EtherNet/IP

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36. Advantages Compared with a Conventional Starter

Function	Conventional Starter	20G11NC015JA0NNNNN
Motor Start/Stop	Yes	Yes
Variable Speed	No	Yes
Adjustable Acceleration	Limited	Yes
Adjustable Deceleration	Limited	Yes
Dynamic Braking	Usually external	Supported
Network Control	Limited	Yes
Speed Reference	No	Yes
Current Monitoring	Limited	Yes
Fault Diagnostics	Limited	Yes
Motor Protection	Limited	Advanced electronic functions
Process Control	Limited	Yes
Energy Optimization	Limited	Possible

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37. Main Benefits for Conveyor Machinery

The drive can provide controlled starting and stopping.

For conveyor systems, this can reduce sudden mechanical loading.

The motor can also be operated at different speeds according to the production line.

Potential benefits include:

• Smoother starting
• Smoother stopping
• Reduced belt shock
• Reduced gearbox shock
• Adjustable production speed
• Networked control
• Drive diagnostics
• Controlled reversing where applicable

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38. Main Benefits for Pump Systems

Pump systems often do not require maximum motor speed at all times.

Variable-speed operation allows the pump to respond to process requirements.

Potential benefits include:

• Adjustable flow
• Adjustable pressure
• Smooth starting
• Smooth stopping
• Reduced mechanical stress
• Potential energy savings
• Automated control

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39. Main Benefits for Fans and Blowers

The drive allows fan speed to be adjusted according to airflow demand.

This can provide:

• Better airflow control
• Lower operating speed when full airflow is unnecessary
• Potential energy reduction
• Reduced mechanical stress
• Reduced noise
• Improved process control

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40. Main Benefits for Mixers

The drive can provide different motor speeds for different mixing stages.

This is useful when production processes require:

• Slow mixing
• Medium-speed mixing
• High-speed mixing
• Controlled acceleration
• Controlled deceleration
• Torque control

The application must be checked carefully when the mixer has a high starting torque or very high inertia.

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41. Main Benefits for Material Handling

Material-handling equipment can benefit from precise speed control.

The drive can allow the machine controller to adjust the motor according to production requirements.

It can also provide controlled acceleration and deceleration.

This can be particularly useful when the material being moved is sensitive to sudden motion.

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42. Maintenance Advantages

The drive’s diagnostic functions can assist maintenance personnel.

Instead of treating every machine shutdown as a motor failure, technicians can examine drive status and fault information first.

Possible diagnostic categories include:

• Motor overload
• Overcurrent
• Overvoltage
• Undervoltage
• Ground fault
• Drive overtemperature
• Communication fault
• DC-bus fault

This can make troubleshooting more systematic.

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43. Cabinet Design Considerations

Because the drive uses forced-air cooling, the electrical cabinet must be designed with thermal management in mind.

The cabinet designer should consider:

• Drive heat generation
• Ambient temperature
• Airflow direction
• Cooling fan capacity
• Cabinet size
• Other heat-producing components
• Cable routing
• Maintenance access

The drive should not be installed in a confined space where hot air can circulate repeatedly through the cooling path.

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44. Motor Selection Considerations

When pairing the drive with a motor, the following information should be checked.

Motor Parameter	Importance
Model	20G11NC015JA0NNNNN
Motor Voltage	Must match drive capability
Motor Current	Must remain within drive rating
Motor Frequency	Must be correctly configured
Motor Power	Must be within duty rating
Motor Speed	Required for speed-control setup
Motor Type	Must be compatible with control mode
Starting Torque	Important for heavy loads
Load Inertia	Important for braking
Duty Cycle	Important for thermal rating

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45. Recommended Operating Applications

The model is particularly suitable for applications requiring a combination of:

Three-phase higher-voltage motor power + approximately 15 A current capacity + variable-speed operation + industrial network integration + controlled acceleration/deceleration.

Good application candidates include:

• Industrial conveyors
• Pumps
• Fans
• Blowers
• Mixers
• Material-handling systems
• Packaging machinery
• Production machinery
• Process machinery
• Auxiliary rotating equipment

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46. Key Advantages at a Glance

Advantage	Description
15 A Class	Suitable for medium-size motors
400 V Class	Suitable for higher-voltage three-phase systems
7.5 kW Class	Appropriate for many medium industrial applications
PowerFlex 755	Advanced industrial drive platform
EtherNet/IP	Network integration
Dynamic Braking	Useful for controlled stopping
Forced-Air Cooling	Suitable for industrial cabinet installation
Variable Speed	Adjustable motor speed
Acceleration Control	Smooth starting
Deceleration Control	Smooth stopping
Diagnostics	Easier troubleshooting
Motor Protection	Electronic monitoring
Flexible Control	Suitable for different load types
Panel Mounting	Suitable for control cabinets

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47. Complete Technical Summary

Category	Specification
Model	20G11NC015JA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	Variable Frequency AC Drive
Voltage Class	400 VAC
Typical Supply	380–480 VAC class
Input Phase	3 Phase
Output Phase	3 Phase
Output Current	Approx. 15 A
Normal-Duty Power	Approx. 7.5 kW / 10 HP
Heavy-Duty Power	Approx. 5.5 kW / 7.5 HP
Frame	Frame 2 class
Cooling	Forced Air
Enclosure	IP20/IP00 class
Mounting	Panel Mount
Communication	Embedded EtherNet/IP
Dynamic Braking	Internal DB Transistor
Filtering	Filtered configuration
CM Jumper	Installed configuration
Operator Interface	Blank / No HIM
DC Bus	Available
Approx. Height	300 mm
Approx. Width	185 mm
Approx. Depth	220 mm
Approx. Dimensions	300 × 185 × 220 mm
Weight (kg)	Approximately 11–13 kg
Operating Temperature	Approximately 0–50 °C class
Main Applications	Pumps, fans, conveyors, mixers, blowers, material handling
Main Benefit	Flexible industrial variable-speed motor control

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48. Overall Product Assessment

The 20G11NC015JA0NNNNN is a versatile industrial variable-frequency drive intended for medium-power three-phase AC motor applications.

Its approximately 15 A current class places it above many compact-drive applications while keeping the physical construction relatively manageable for industrial control cabinets.

The approximately 7.5 kW / 10 HP normal-duty class makes it appropriate for a broad range of pumps, fans, conveyors, blowers and general industrial machinery.

For heavier constant-torque applications, the approximately 5.5 kW / 7.5 HP heavy-duty class provides a more conservative selection point.

One of the strongest features is the PowerFlex 755 platform itself.

The drive is designed not simply to start and stop a motor, but to become part of a complete automation system.

The embedded EtherNet/IP capability allows control systems to communicate with the drive, while diagnostic information can be used for troubleshooting and maintenance.

The internal dynamic-braking transistor is another useful feature.

It allows compatible braking arrangements to be implemented for applications requiring controlled deceleration or higher braking performance.

The forced-air cooling system makes cabinet design important.

Adequate ventilation and thermal management should be provided, particularly when the drive is installed together with other heat-producing equipment.

The approximate physical dimensions of 300 × 185 × 220 mm and approximate weight of 11–13 kg place the unit in a relatively manageable industrial-drive size class, although additional cabinet space is required for wiring, ventilation and maintenance access.

The model is especially attractive for applications where a fixed-speed motor starter would provide insufficient control.

For a conveyor, the drive can provide controlled starting and stopping.

For a pump, it can provide adjustable flow and pressure control.

For a fan or blower, it can regulate airflow according to demand.

For a mixer, it can provide adjustable operating speed and controlled acceleration.

For material-handling equipment, it can provide smoother movement and better integration with an automated production line.

Overall, the 20G11NC015JA0NNNNN can be summarized as a 400 V-class, approximately 15 A, PowerFlex 755 industrial AC drive intended for medium-power three-phase motor applications, with variable-speed control, network communication, dynamic-braking capability, electronic diagnostics and flexible industrial automation functionality.

Its main selection points are:

15 A current class, approximately 7.5 kW / 10 HP normal-duty capability, approximately 5.5 kW / 7.5 HP heavy-duty capability, 400 V-class three-phase operation, Frame 2-class construction, forced-air cooling, embedded EtherNet/IP, internal dynamic-braking transistor, panel mounting, approximately 300 × 185 × 220 mm dimensions and approximately 11–13 kg weight.

For replacement or purchasing purposes, the complete catalog number 20G11NC015JA0NNNNN should be matched carefully because small changes in the catalog-number suffix can indicate differences in voltage, braking, filtering, communication, operator-interface or other configuration details.