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Allen-Bradley 20G14TC650AN0NNNNN PowerFlex 755 AC Drive

1. Product Introduction

The Allen-Bradley 20G14TC650AN0NNNNN is a high-power PowerFlex 755 air-cooled AC drive designed for large industrial motor-control applications.

It is part of the PowerFlex 755 series and belongs to the broader PowerFlex 750-Series family. The drive is designed for demanding applications where high motor current, high power capacity, controlled acceleration and deceleration, industrial communication, and reliable speed control are required.

This particular configuration is intended for 400 VAC, three-phase systems and uses a DC input with precharge arrangement. The DC-input architecture makes this model especially relevant to common-DC-bus installations and other high-power systems where several drive sections are integrated into one electrical architecture.

The 20G14TC650AN0NNNNN has a 650 A Normal Duty rating and approximately 355 kW Normal Duty power capability. Its higher Light Duty and Heavy Duty ratings provide additional flexibility when the load characteristics are different from a conventional constant-torque application.

The principal ratings are:

• 750 A Light Duty
• 650 A Normal Duty
• 540 A Heavy Duty

The associated approximate power ratings are:

• 400 kW Light Duty
• 355 kW Normal Duty
• 315 kW Heavy Duty

This places the model in the high-capacity section of the PowerFlex 755 range.

It is intended for applications such as large pumps, fans, conveyors, process machinery, mining equipment, material-handling systems, steel-processing equipment, cement and aggregate machinery, and other large industrial systems.

The drive uses Frame 8 construction and forced-air cooling. Because this is a large industrial drive, cabinet design, thermal management, power distribution, grounding, cable routing, and service access should all be considered during system engineering.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Catalog Number	20G14TC650AN0NNNNN
Drive Category	High-Power Industrial AC Drive
Input Voltage Class	400 VAC
Input Phase	3 Phase
Input Configuration	DC Input with Precharge
Nominal DC Bus Class	Approximately 540 VDC
Frame Size	Frame 8
Cooling Method	Forced Air
Construction	Open Type
Dynamic Braking	None
Internal Braking Transistor	No
Internal Braking Resistor	No
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Filtering / CM Configuration	AN configuration; filter / CM jumper removed
Main Application	Large Industrial Motor Control

The PowerFlex 755 series is designed for applications where conventional compact drives are not sufficient in terms of power, current, control flexibility, or system integration.

The series is particularly suitable for large machines and industrial processes that need more than basic speed control.

Its architecture supports sophisticated motor-control applications and can be integrated into larger automation systems involving PLCs, HMIs, industrial Ethernet networks, feedback devices, and application-specific control hardware.

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3. Complete Technical Parameter Table

Technical Parameter	Specification
Model / Part Number	20G14TC650AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	Air-Cooled 755 AC Drive
Input Voltage	400 VAC
Input Phase	3 Phase
Input Type	DC Input with Precharge
Nominal DC Voltage Class	540 VDC
Light Duty Current	750 A
Light Duty Power	400 kW
Normal Duty Current	650 A
Normal Duty Power	355 kW
Heavy Duty Current	540 A
Heavy Duty Power	315 kW
Frame Size	Frame 8
Construction	Open Type
Cooling	Forced Air
Dynamic Braking	None
Dynamic Braking Transistor	No
Dynamic Braking Resistor	No
Filtering	Filter / CM configuration removed
CM Jumper	Removed
Human Interface Module	Blank / No HIM
Embedded Communication	EtherNet/IP
Integrated Motion	Not included
Operating Temperature	Configuration dependent; typically around 0–50 °C for the standard installation range
Relative Humidity	Approximately 5–95%, non-condensing
Storage Temperature	Approximately -40 to +70 °C
Approx. Height	2145 mm
Approx. Width	778 mm
Approx. Depth	421 mm
Approx. Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg
Installation	Industrial cabinet / enclosure
Typical Duty	Large industrial motor control
Common DC Bus	Suitable
Motor Power Class	Up to approximately 355 kW Normal Duty
Enclosure Class	Open Type
Cooling Requirement	Forced Air / engineered cabinet airflow

The dimensions and weight listed above are intended as practical reference values for the Frame 8 drive assembly. Final installation dimensions can vary depending on the exact mechanical arrangement, options, cabinet configuration, and associated equipment.

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4. Electrical Rating

The defining feature of the 20G14TC650AN0NNNNN is its high current capacity.

Its 650 A Normal Duty rating makes it suitable for large industrial motors in the approximately 355 kW power class.

The drive also provides different ratings according to application duty.

Duty Rating	Output Current	Approx. Power
Light Duty	750 A	400 kW
Normal Duty	650 A	355 kW
Heavy Duty	540 A	315 kW

This rating structure is important because industrial motors do not all experience the same type of load.

A large centrifugal fan, for example, may have a very different current and overload profile from a crusher, conveyor, hoist, mixer, or heavy process machine.

For this reason, drive selection should always consider the actual load profile rather than simply matching the motor’s kW rating.

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5. Understanding the 650 A Rating

The 650 A Normal Duty rating is the key specification when evaluating this model for a conventional industrial application.

For a motor with a full-load current below 650 A, the drive may be suitable from a current-capacity perspective, provided that all other electrical and application requirements are satisfied.

The 750 A Light Duty rating provides additional capacity for appropriate variable-torque applications.

The 540 A Heavy Duty rating is the relevant figure when the application requires heavier overload performance.

This difference is particularly important in applications with:

• High starting torque
• Frequent acceleration
• Frequent deceleration
• Heavy material loads
• Large inertia
• Repeated overloads
• Rapid speed changes
• Difficult starting conditions

The motor’s nameplate current should therefore be compared with the applicable duty rating rather than simply comparing motor horsepower with drive horsepower.

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6. 400 VAC Three-Phase Operation

The 20G14TC650AN0NNNNN is intended for 400 VAC three-phase industrial electrical systems.

This voltage class is common in many industrial facilities and is particularly relevant to 380–415 VAC distribution systems.

The drive’s voltage rating must match the actual plant electrical system.

It should not be assumed that a 400 VAC model can be directly substituted for a 480 VAC or 690 VAC model merely because the motor power is similar.

Voltage class affects:

• DC bus voltage
• Semiconductor stress
• Motor insulation requirements
• Cable requirements
• Protective-device selection
• System grounding
• Drive configuration
• Overall cabinet design

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7. DC Input with Precharge

The DC-input configuration is one of the most important characteristics of the 20G14TC650AN0NNNNN.

Instead of being designed only as an independent AC-input drive, this model can be incorporated into a common DC bus architecture.

The precharge function is important because large DC-link capacitors can draw a very high current if connected directly to a high-energy DC source.

Controlled precharging reduces the initial current surge and provides a more controlled energization sequence.

This makes the configuration particularly useful in large multi-drive installations.

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8. Common DC Bus Applications

The 20G14TC650AN0NNNNN can be used in systems where several drives share a common DC power architecture.

A typical large machine may have multiple motors performing different functions.

For example:

• Main conveyor motor
• Auxiliary conveyor motor
• Feed motor
• Take-up motor
• Winder motor
• Process-roll motor
• Cooling-system motor

A common DC bus can provide a more integrated power structure for these drives.

In certain systems, energy generated by a decelerating motor can also be used by another motor operating in a motoring condition.

This can improve the overall energy utilization of the system, depending on the exact machine architecture and operating cycle.

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9. AN Configuration

The requested catalog number ends with the configuration:

AN0NNNNN

The A configuration is important when comparing this model with the closely related JN configuration.

For the PowerFlex 755 catalog structure, the A/J distinction is associated with the filtering and CM-jumper configuration.

For this AN version, the filter / CM jumper configuration is removed.

That means the 20G14TC650AN0NNNNN should not be described as identical to the JN version in terms of EMC configuration.

A closely related model is:

20G14TC650JN0NNNNN

The JN version has the filter and CM jumper installed.

The difference can matter when the drive is being integrated into a particular electrical system.

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10. Filtering and EMC Considerations

Electromagnetic compatibility is especially important in large industrial installations.

A high-power drive contains high-speed power switching components and can generate conducted and radiated electrical noise.

The final EMC behavior depends on many factors, including:

• Motor cable length
• Cable construction
• Grounding
• Cabinet design
• Motor characteristics
• Filter configuration
• Common-mode arrangement
• Nearby control equipment
• Communication wiring
• Installation topology

The AN configuration has the filter / CM jumper removed.

This can be appropriate for certain system architectures, but it means that the EMC design should be considered as part of the complete electrical system rather than assuming that the drive configuration alone solves all EMC requirements.

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11. Dynamic Braking

The 20G14TC650AN0NNNNN is configured without an internal dynamic-braking transistor.

It also does not include an internal braking resistor.

Braking Feature	Specification
Dynamic Braking Transistor	No
Internal Braking Resistor	No
Internal Dynamic Braking	Not included
External Braking	Application dependent
Regenerative Solution	Application dependent

This is particularly relevant when the drive is used on high-inertia equipment.

A large motor and load combination can store considerable mechanical energy.

When the machine decelerates, that energy can be transferred back toward the electrical system.

The system designer must therefore determine whether the application requires:

• External braking
• Regenerative operation
• Mechanical braking
• Controlled deceleration
• Alternative drive configuration

Applications such as hoists, large conveyors, centrifuges, high-inertia drums, and certain process machines deserve particular attention in this area.

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12. Frame 8 Mechanical Construction

The 20G14TC650AN0NNNNN uses a Frame 8 construction.

This is a large industrial drive frame intended for high-power applications.

Mechanical Parameter	Approximate Specification
Model	20G14TC650AN0NNNNN
Frame	8
Construction	Open Type
Height	Approximately 2145 mm
Width	Approximately 778 mm
Depth	Approximately 421 mm
Dimensions	Approximately 2145 × 778 × 421 mm
Weight	Approximately 162 kg
Cooling	Forced Air
Installation	Industrial cabinet / enclosure

The large dimensions should be taken seriously during project planning.

This is not a compact wall-mounted VFD.

The drive requires a properly engineered installation area with sufficient room for:

• Power wiring
• DC bus connections
• Control wiring
• Communication wiring
• Cooling airflow
• Maintenance
• Inspection
• Cable bending radius
• Grounding
• Protective equipment

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13. Weight and Transportation

The approximate drive weight is 162 kg.

This makes handling and transportation an important part of installation planning.

The cabinet structure must be capable of supporting the drive and all associated equipment.

The total finished cabinet may weigh substantially more than the drive itself once the following are added:

• Busbars
• Disconnect equipment
• Fuses
• Input equipment
• DC bus equipment
• Control power
• PLC components
• Ethernet switches
• Terminal blocks
• Cooling equipment
• Additional drives
• Wiring and cable assemblies

Suitable lifting and handling equipment should be used during installation.

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14. Cooling System

The drive uses forced-air cooling.

For a 355 kW-class drive, thermal management is critical.

The electrical losses of a large power converter are converted into heat, and that heat must be continuously removed.

A properly engineered installation should therefore consider:

• Air inlet
• Air outlet
• Cabinet airflow
• Ambient temperature
• Fan operation
• Dust accumulation
• Filter condition
• Heat separation
• Cabinet ventilation
• Service access

High cabinet temperature can accelerate aging of electrical components.

Keeping the cooling system clean and functional is therefore an important part of long-term maintenance.

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15. Environmental Specifications

Environmental Parameter	Typical Specification
Operating Temperature	Approximately 0–50 °C, configuration dependent
Storage Temperature	Approximately -40 to +70 °C
Relative Humidity	Approximately 5–95%, non-condensing
Cooling	Forced Air
Installation	Industrial Environment
Construction	Open Type
Cabinet Requirement	Engineered enclosure or suitable electrical-room installation

The surrounding environment should also be evaluated for:

• Dust
• Oil mist
• Moisture
• Corrosive gases
• Conductive contaminants
• Excessive vibration
• Excessive heat

Because the drive is an open-type unit, the surrounding enclosure or electrical room must provide the environmental protection required by the application.

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16. Embedded EtherNet/IP

The drive includes embedded EtherNet/IP communication.

This allows the drive to be integrated into an industrial Ethernet control system without relying entirely on hardwired command signals.

Typical information exchanged through the control network can include:

• Start / stop commands
• Speed reference
• Drive status
• Running status
• Fault status
• Diagnostic information
• Parameter information
• Process data

For a plant containing multiple drives, network communication can also make centralized monitoring much easier.

Operators and maintenance personnel can obtain information about drive conditions without having to physically stand in front of each drive.

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17. Human Interface Configuration

The model is configured as:

Blank / No HIM

This means the catalog configuration does not include a local human-interface module.

This can be advantageous for cabinet installations where the primary operator interface is already provided by:

• HMI
• PLC
• SCADA
• Control-room system
• Industrial Ethernet
• Remote maintenance interface

For large production systems, it is often more practical to operate and monitor the drive from a centralized control system rather than rely on a local keypad.

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18. Large Pump Applications

Large pumps are a natural application for a high-power variable-frequency drive.

Possible applications include:

• Water treatment
• Industrial water circulation
• Cooling-water systems
• Process pumps
• Mining slurry pumps
• Industrial wastewater
• Irrigation
• Chemical process systems

Variable-speed control allows the motor speed to be adjusted according to process demand.

This can improve process flexibility and, in suitable centrifugal-pump applications, can also provide significant energy-saving opportunities compared with continuously operating at full speed and controlling flow through mechanical throttling.

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19. Large Fan Applications

Large fans can also benefit from variable-speed control.

Typical applications include:

• Furnace fans
• Kiln fans
• Mine ventilation
• Industrial exhaust
• Dust collection
• Cooling systems
• Process ventilation
• Large air-handling equipment

The 750 A Light Duty rating is particularly relevant to variable-torque applications where the actual load profile is compatible with the Light Duty rating.

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20. Conveyor Applications

Heavy conveyors can require substantial current during acceleration.

This is especially true when a conveyor is carrying:

• Ore
• Coal
• Aggregate
• Cement
• Steel
• Bulk materials
• Heavy manufactured products

The PowerFlex 755 platform can provide controlled acceleration and speed regulation while integrating the drive into a larger automation system.

Large conveyor systems may also use multiple coordinated motors.

In these cases, the DC-bus architecture and communication capabilities can become valuable system-level features.

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21. Mining Applications

Mining equipment often contains large motors and demanding mechanical loads.

Potential applications include:

• Ore conveyors
• Crushers
• Large pumps
• Ventilation fans
• Material-handling equipment
• Processing equipment
• Feed systems
• Heavy-duty rotating machinery

Mining environments can also be harsh.

Dust, temperature, vibration, and contamination must therefore be considered in the complete installation.

The drive should be installed in an enclosure or electrical environment suitable for the specific mining application.

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22. Cement and Aggregate Applications

Cement and aggregate facilities commonly use large motors throughout the production process.

Typical equipment includes:

• Crushers
• Mills
• Fans
• Conveyors
• Pumps
• Feeders
• Material-handling systems
• Dust-control equipment

The 20G14TC650AN0NNNNN is suitable for high-power motor sections where the current and duty ratings match the application.

Its large Frame 8 design also makes it suitable for centralized industrial electrical rooms and large drive cabinets.

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23. Steel and Metal Processing

Steel plants and metal-processing facilities can have many large coordinated motor systems.

Examples include:

• Rolling systems
• Strip processing
• Cooling systems
• Large pumps
• Process rolls
• Conveyors
• Winding equipment
• Material handling

The ability to coordinate multiple drives is often more important than simply controlling one motor.

The PowerFlex 755 architecture is suitable for these larger automation systems.

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24. Paper and Pulp Machinery

Paper-making systems commonly contain multiple motor sections that need to operate together.

Applications may include:

• Process rolls
• Dryer sections
• Winding systems
• Feed systems
• Fans
• Pumps
• Material handling

Stable speed control is important because changes in speed or torque can influence web tension and overall production quality.

A high-power PowerFlex 755 drive can be used as one part of such a coordinated system.

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25. Material Handling Applications

Large material-handling systems can use high-power motors for:

• Conveyors
• Transfer systems
• Bulk material equipment
• Port machinery
• Industrial transportation
• Storage and retrieval equipment
• Heavy production lines

The embedded EtherNet/IP interface is useful where the drive must exchange information with PLCs, HMIs, sensors, and supervisory systems.

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26. Main Product Advantages

High Current Capacity

The 650 A Normal Duty rating is the central advantage of the model.

It provides substantial capacity for large industrial motors and applications that would be outside the practical range of smaller drives.

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High Power Capability

The drive reaches approximately 355 kW Normal Duty and approximately 400 kW Light Duty.

This places it firmly in the high-power industrial category.

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Common DC Bus Capability

The DC input with precharge configuration is well suited to common-DC-bus systems.

This is particularly useful in large machines containing several coordinated drives.

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Industrial Ethernet Integration

Embedded EtherNet/IP provides a straightforward way to integrate the drive into an industrial automation network.

This can simplify command, monitoring, diagnostics, and data collection.

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Modular PowerFlex 755 Platform

The PowerFlex 755 architecture supports a broad range of industrial applications.

This allows engineers to build systems around a common drive platform instead of using completely different drive families for different machine sections.

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Multiple Duty Ratings

The three duty classes give engineers more flexibility.

Duty	Current	Power
Light Duty	750 A	400 kW
Normal Duty	650 A	355 kW
Heavy Duty	540 A	315 kW

This makes it possible to evaluate the drive according to actual load behavior.

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27. Advantages for System Integrators

For system integrators, the 20G14TC650AN0NNNNN provides a high-capacity platform for large industrial systems.

The high current rating means that large motors can be controlled with a single high-power drive.

The embedded EtherNet/IP communication reduces the need for extensive hardwired control interfaces.

The DC-input configuration also provides flexibility for common-DC-bus systems.

Another practical advantage is standardization.

If a plant already uses PowerFlex 755 drives, engineers and maintenance personnel can work within a familiar platform.

This can simplify:

• Commissioning
• Programming
• Troubleshooting
• Maintenance
• Spare-parts management
• Operator training

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28. Advantages for OEM Machine Builders

For OEM machine builders, a high-power modular drive platform can simplify the development of large machinery.

The same platform can be adapted to different motor sizes and machine configurations.

This can be valuable for:

• Large production machines
• Material-handling equipment
• Processing machinery
• Pumps
• Fans
• Conveyors
• Multi-motor systems

The ability to integrate communication and application-specific control hardware can also reduce the need for separate control architectures.

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29. Advantages for Plant Operators

For plant operators, the most useful benefit is the ability to control large motors more precisely.

Potential operational benefits include:

• Controlled acceleration
• Controlled deceleration
• Adjustable motor speed
• Process optimization
• Drive diagnostics
• Network monitoring
• Fault information
• Improved coordination
• Reduced mechanical shock

The actual energy savings and process improvements depend on the machine design and operating conditions.

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30. Five Recommended Models from the Same TC Series

The following five models are closely related to the requested 20G14TC650AN0NNNNN.

Model / Part Number	Voltage	Light Duty	Normal Duty	Heavy Duty	Frame	Input
20G14TC460JN0NNNNN	400 VAC	540 A / 315 kW	460 A / 250 kW	385 A / 200 kW	8	DC Input with Precharge
20G14TC540JN0NNNNN	400 VAC	585 A / 315 kW	540 A / 315 kW	456 A / 250 kW	8	DC Input with Precharge
20G14TC567JN0NNNNN	400 VAC	612 A / 355 kW	567 A / 315 kW	472 A / 250 kW	8	DC Input with Precharge
20G14TC650JN0NNNNN	400 VAC	750 A / 400 kW	650 A / 355 kW	540 A / 315 kW	8	DC Input with Precharge
20G14TC750JN0NNNNN	400 VAC	796 A / 450 kW	750 A / 400 kW	585 A / 315 kW	8	DC Input with Precharge

These models form a useful progression for selecting a high-power 400 VAC PowerFlex 755 drive.

The 460 A model is suitable when the required motor current is considerably lower.

The 540 A and 567 A versions provide intermediate capacity.

The 650 A model represents a substantial increase in current capability.

The 750 A version provides still more capacity for very large motors and demanding installations.

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31. Mechanical Comparison of Same-Series Models

Model / Part Number	Frame	Approx. Height	Approx. Width	Approx. Depth	Approx. Weight
20G14TC460JN0NNNNN	8	2145 mm	778 mm	421 mm	~162 kg
20G14TC540JN0NNNNN	8	2145 mm	778 mm	421 mm	~162 kg
20G14TC567JN0NNNNN	8	2145 mm	778 mm	421 mm	~162 kg
20G14TC650JN0NNNNN	8	2145 mm	778 mm	421 mm	~162 kg
20G14TC750JN0NNNNN	8	2145 mm	778 mm	421 mm	~162 kg

The electrical capacity changes significantly across these models even though the physical frame remains in the same general Frame 8 category.

This can be useful for machine builders because a higher-capacity drive does not necessarily require a completely different physical architecture.

However, the increased current rating can affect:

• Cable size
• Protective devices
• Busbar rating
• Heat dissipation
• Cabinet ventilation
• Short-circuit calculations
• Motor connections

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32. Five Related PowerFlex 755 Models

For plants using higher-voltage motor systems, the following PowerFlex 755 models are useful related references.

Model / Part Number	Voltage	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame
20G14NF119JA0NNNNN	690 VAC	119 A	110 kW	98 A	90 kW	6
20G14NF142JA0NNNNN	690 VAC	142 A	132 kW	119 A	110 kW	6
20G14NF171JA0NNNNN	690 VAC	171 A	160 kW	142 A	132 kW	7
20G14NF212JA0NNNNN	690 VAC	212 A	200 kW	171 A	160 kW	7
20G14NF263JA0NNNNN	690 VAC	263 A	250 kW	212 A	200 kW	7

These models are not direct electrical substitutes for the 400 VAC 20G14TC650AN0NNNNN.

They are useful comparisons because they belong to the same PowerFlex 755 family and demonstrate how the series can cover different voltage and power requirements.

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33. Mechanical Reference for Related Models

Model / Part Number	Frame	Approx. Dimensions	Approx. Weight
20G14NF119JA0NNNNN	6	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF142JA0NNNNN	6	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF171JA0NNNNN	7	Approx. 430.0 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF212JA0NNNNN	7	Approx. 430.0 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF263JA0NNNNN	7	Approx. 430.0 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg

These dimensions are drive-level reference values and should not be confused with the dimensions of a complete electrical cabinet.

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34. Five Popular Allen-Bradley Models

The following are useful popular models from the same brand but aimed at different application and power ranges.

Model / Part Number	Series	Voltage Class	Current Class	Approx. Power Class	Typical Application
25B-D017N114	PowerFlex 525	480 VAC class	17 A	~7.5 kW class	Machine control
25B-D024N114	PowerFlex 525	480 VAC class	24 A	~11 kW class	Pumps, fans, conveyors
25B-D030N114	PowerFlex 525	480 VAC class	30 A	~15 kW class	Industrial machines
20G11NC5P0JA0NNNNN	PowerFlex 755	480 VAC class	~50 A class	~37–45 kW class	Industrial motor control
20G11NC072JA0NNNNN	PowerFlex 755	480 VAC class	~72 A class	~55 kW class	Medium/high-power machinery

These models demonstrate the difference between compact machine drives and the much larger PowerFlex 755 Frame 8 platform.

The 20G14TC650AN0NNNNN is intended for a completely different power range and installation scale.

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35. Mechanical Reference for Popular Models

Model / Part Number	General Size	Dimensions	Weight
25B-D017N114	Compact	Configuration dependent	Configuration dependent
25B-D024N114	Compact	Configuration dependent	Configuration dependent
25B-D030N114	Compact	Configuration dependent	Configuration dependent
20G11NC5P0JA0NNNNN	Medium PowerFlex 755	Configuration dependent	Configuration dependent
20G11NC072JA0NNNNN	Medium PowerFlex 755	Configuration dependent	Configuration dependent

Exact dimensions and weights for these configurations can vary according to frame, options, enclosure, and mounting arrangement.

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36. 650 A vs. 567 A

The 650 A model provides noticeably more current capacity than the 567 A version.

Characteristic	567 A Model	650 A Model
Model	20G14TC567JN0NNNNN	20G14TC650AN0NNNNN
Light Duty	612 A	750 A
Normal Duty	567 A	650 A
Normal Duty Power	315 kW	355 kW
Heavy Duty	472 A	540 A
Frame	8	8
Input	DC with Precharge	DC with Precharge
Approx. Dimensions	2145 × 778 × 421 mm	2145 × 778 × 421 mm
Approx. Weight	~162 kg	~162 kg

The 650 A model is therefore appropriate when the motor current or process requirement exceeds the practical range of the 567 A model.

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37. 650 A vs. 750 A

The next major step in the same TC series is the 750 A model.

Characteristic	650 A Model	750 A Model
Model	20G14TC650AN0NNNNN	20G14TC750AN0NNNNN
Light Duty	750 A	796 A
Normal Duty	650 A	750 A
Normal Duty Power	355 kW	400 kW
Heavy Duty	540 A	585 A
Frame	8	8
Approx. Weight	~162 kg	~162 kg
Input	DC with Precharge	DC with Precharge

The 750 A version is useful when additional current capacity is needed.

However, oversizing should not be the default strategy.

The correct model should be selected based on:

• Motor current
• Motor power
• Duty cycle
• Overload requirements
• Acceleration requirements
• Deceleration requirements
• Ambient temperature
• Motor cable characteristics
• System voltage
• Braking requirements

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38. Application Selection Guide

Application	Recommended Consideration
Large centrifugal pump	Light Duty rating may be applicable
Large fan	Light Duty rating may be applicable
Heavy conveyor	Normal / Heavy Duty evaluation
Crusher	Heavy Duty evaluation
Large mixer	Heavy Duty evaluation
Steel processing	Normal / Heavy Duty evaluation
Mining conveyor	Normal / Heavy Duty evaluation
Paper machinery	Normal Duty evaluation
Large process pump	Normal Duty or Light Duty depending on load
High-inertia machine	Braking analysis required
Common DC bus	DC-input configuration is particularly relevant
Multi-drive system	Common DC bus and communication architecture should be evaluated

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39. Motor Selection Considerations

When pairing a motor with the 20G14TC650AN0NNNNN, the motor nameplate should be reviewed carefully.

Important parameters include:

• Motor voltage
• Full-load current
• Rated power
• Rated frequency
• Rated speed
• Power factor
• Efficiency
• Starting torque
• Continuous torque
• Peak torque
• Overload requirement
• Acceleration time
• Deceleration time
• Motor cable length
• Feedback requirements

The most important electrical parameter is often the motor current.

A motor’s kW rating alone does not determine whether the drive is correctly sized.

Two motors with the same kW rating can have different current requirements depending on voltage, efficiency, power factor, and motor construction.

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40. Braking and Regeneration Planning

Because the requested model does not contain an internal dynamic-braking transistor or resistor, braking must be considered during the initial engineering stage.

For a simple pump or fan, controlled deceleration may be sufficient.

For a high-inertia machine, however, regeneration may become significant.

Potential solutions include:

• Longer deceleration time
• External braking system
• Regenerative power system
• Mechanical brake
• Alternative drive configuration

The correct solution depends on the actual kinetic energy of the load and the required stopping time.

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41. Maintenance Recommendations

Regular maintenance is important for high-power air-cooled drives.

Cooling Fan Inspection

Fans should be checked for abnormal noise, vibration, and reduced airflow.

Airflow Inspection

Cooling paths should be kept clear.

Dust accumulation can reduce cooling performance.

Electrical Connection Inspection

High-current electrical connections should be inspected as part of the plant maintenance program.

Cabinet Inspection

The surrounding cabinet should be checked for:

• Excessive heat
• Dust
• Moisture
• Corrosion
• Blocked ventilation
• Abnormal fan operation

Communication Inspection

EtherNet/IP connections should be checked if communication faults occur.

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42. Installation Checklist

Item	Requirement
Model	20G14TC650AN0NNNNN
Voltage	400 VAC class
Phase	3 Phase
DC Input	Required / Confirmed
Precharge	Required / Confirmed
Normal Duty Current	650 A
Normal Duty Power	355 kW
Heavy Duty Current	540 A
Light Duty Current	750 A
Frame	8
Cooling	Forced Air
Approx. Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg
Cabinet Support	Suitable for heavy Frame 8 equipment
Airflow	Adequate
Grounding	Properly engineered
EMC Configuration	AN configuration reviewed
Communication	EtherNet/IP
Braking	Application requirement reviewed
Motor Current	Within applicable duty rating
Maintenance Access	Adequate

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43. Cabinet Design Considerations

The physical size of the 20G14TC650AN0NNNNN means that cabinet design should begin before the final drive installation.

The designer should allow adequate space for:

• Drive mounting
• Incoming power
• DC bus
• Motor output
• Grounding
• Control wiring
• Ethernet wiring
• Cooling airflow
• Service access

High-current cables also require suitable bending radius and mechanical support.

Control and communication cables should be routed appropriately relative to high-power conductors.

The cabinet should also provide an appropriate thermal path for the heat produced by the drive.

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44. Spare Parts Strategy

For a production line where this drive is critical, spare-parts planning can have a major impact on downtime.

Possible spare-part categories include:

• Cooling fans
• Control components
• Interface boards
• Communication modules
• Feedback modules
• Power components
• Terminal assemblies
• Fuses
• Associated control hardware

The appropriate spare strategy depends on plant criticality.

For a critical production line, keeping a complete spare drive or major replacement assembly may be justified.

For less critical equipment, component-level spares may be sufficient.

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45. Advantages of Standardizing on the PowerFlex 755 Platform

For facilities with many industrial drives, standardization can have practical benefits.

A common platform can simplify:

• Operator training
• Maintenance training
• Programming
• Troubleshooting
• Spare-parts management
• Commissioning
• Network integration
• Documentation

If several machines use different power ratings but remain within the PowerFlex 755 family, engineering personnel can work with a familiar control and communication environment.

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46. Overall Product Advantages

Advantage	Practical Meaning
650 A Normal Duty	Supports large industrial motors
355 kW Normal Duty	High-power motor-control capability
750 A Light Duty	Suitable for appropriate variable-torque loads
540 A Heavy Duty	Provides substantial heavy-load capacity
DC Input with Precharge	Suitable for common DC bus architecture
Frame 8	High-capacity industrial platform
Forced-Air Cooling	Suitable for large power conversion
EtherNet/IP	Industrial network integration
No Internal Brake Hardware	Allows application-specific braking design
No HIM	Useful for centralized control systems
PowerFlex 755 Platform	Broad industrial application range
Filter / CM Configuration Removed	Allows system-specific EMC design

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47. Product Positioning

The 20G14TC650AN0NNNNN is best positioned as a high-power industrial drive for large 400 VAC motor systems.

It is not intended to compete with compact drives used on small motors.

Instead, it addresses applications where the motor current and mechanical load are large enough to require a Frame 8 industrial drive.

Its approximate 355 kW Normal Duty rating places it in a class suitable for large process equipment and major production machinery.

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48. Final Product Specification Table

Category	Final Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Model	20G14TC650AN0NNNNN
Product Type	Air-Cooled AC Drive
Voltage	400 VAC
Phase	3 Phase
DC Input	Yes
Precharge	Yes
Nominal DC Bus Class	540 VDC
Light Duty Current	750 A
Light Duty Power	400 kW
Normal Duty Current	650 A
Normal Duty Power	355 kW
Heavy Duty Current	540 A
Heavy Duty Power	315 kW
Frame	8
Construction	Open Type
Cooling	Forced Air
Dynamic Braking	None
Braking Transistor	None
Braking Resistor	None
Filter / CM Configuration	Removed
CM Jumper	Removed
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Operating Temperature	Approximately 0–50 °C, configuration dependent
Relative Humidity	Approximately 5–95%, non-condensing
Storage Temperature	Approximately -40 to +70 °C
Approx. Height	2145 mm
Approx. Width	778 mm
Approx. Depth	421 mm
Approx. Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg
Main Application	Large Industrial Motor Control
Suitable Architecture	Common DC Bus / High-Power Drive System

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49. Final Assessment

The Allen-Bradley 20G14TC650AN0NNNNN is a high-capacity PowerFlex 755 drive designed for demanding industrial motor-control applications.

Its 650 A Normal Duty rating and approximately 355 kW Normal Duty capacity make it suitable for large motors used in industrial processing, pumps, fans, conveyors, mining, cement, steel, paper, material handling, and other large-scale machinery.

The 750 A Light Duty rating provides additional capacity for appropriate variable-torque applications, while the 540 A Heavy Duty rating gives a clear reference point for applications requiring more demanding torque and overload performance.

The DC input with precharge configuration is particularly useful for common-DC-bus systems. This makes the model relevant to machines containing multiple coordinated drives and to installations where the electrical architecture is designed around a shared DC bus.

The embedded EtherNet/IP capability is another practical advantage. Large industrial systems increasingly require drives to communicate directly with PLCs and supervisory systems, and integrated industrial Ethernet can reduce the amount of conventional hardwired control required.

The drive’s Frame 8 construction is designed for high-power applications, but it also means that physical installation must be carefully planned. With approximate dimensions of 2145 × 778 × 421 mm and an approximate weight of 162 kg, the drive requires suitable cabinet structure, handling equipment, ventilation, power wiring, and service access.

The AN configuration is also important. It should not be treated as electrically identical to the JN configuration when EMC characteristics are being considered because the filter / CM-jumper arrangement differs.

The absence of an internal dynamic-braking transistor and resistor means that braking and regenerative requirements should be evaluated as part of the machine design, particularly for high-inertia equipment.

Overall, the 20G14TC650AN0NNNNN is best suited to applications requiring a large Frame 8 PowerFlex 755 drive, 400 VAC three-phase operation, DC input with precharge, 650 A Normal Duty capability, and approximately 355 kW Normal Duty power.

For large industrial installations, its strongest points are its high current capacity, large motor-power capability, common-DC-bus suitability, industrial Ethernet integration, scalable PowerFlex 755 architecture, and ability to support demanding production equipment.