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Allen-Bradley 20G14TC460JN0NNNNN PowerFlex 755 AC Drive — Complete Technical Specifications, Product Introduction, Applications, Advantages, and Related Models

1. Product Overview

The Allen-Bradley 20G14TC460JN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control systems, especially applications using a common DC-bus or DC-input power architecture.

It is a 400 VAC, three-phase, air-cooled PowerFlex 755 drive with a 460 A Normal Duty rating, 250 kW Normal Duty rating, and 385 A Heavy Duty rating corresponding to 200 kW.

The drive also provides a Light Duty rating of approximately 540 A / 315 kW, giving engineers additional flexibility when selecting the drive for applications with different loading characteristics.

This model is configured as a Frame 8 open-type drive and uses a DC input with precharge. It is intended to be installed as part of a larger electrical cabinet or industrial power-control system rather than being used as a small standalone enclosed inverter.

The JN0 configuration is important because the model includes the filtered configuration with the common-mode jumper installed, while the dynamic braking configuration is None. The drive does not include an internal dynamic braking transistor.

The combination of high current capacity, high motor power, common-DC-bus architecture, Ethernet/IP connectivity, forced-air cooling, and PowerFlex 755 control capability makes this model suitable for large pumps, fans, conveyors, process machinery, mining equipment, material-handling systems, and other heavy industrial applications.

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2. Brand and Product Series

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Family Group	PowerFlex 750-Series
Product Type	AC Variable Frequency Drive
Drive Type	PowerFlex 755 AC Drive
Voltage Class	400 VAC
Input Phase	Three Phase
Input Architecture	DC Input with Precharge
Nominal DC Bus Class	540 VDC
Cooling	Air Cooled / Forced Air
Enclosure	Open Type
Frame	Frame 8
Dynamic Braking	None
Internal DB Transistor	Not Included
Filtering	Filtered
CM Jumper	Installed
HIM	Blank / No HIM
Communication	Embedded Ethernet/IP
Main Application	Large Industrial Motor Control

The PowerFlex 755 series is designed for industrial applications where motor control, network integration, process control, and high power are all important.

The series covers a wide range of motor sizes, making it possible to select a lower- or higher-current drive while maintaining a familiar control platform.

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3. Complete Technical Parameter Table

Parameter	Specification
Model / Part Number	20G14TC460JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Family	PowerFlex 750-Series
Product Type	Air-Cooled AC Drive
Input Voltage	400 VAC class
Input Phase	3 Phase
Input Type	DC Input with Precharge
Nominal DC Input	Approximately 540 VDC
Normal Duty Current	460 A
Normal Duty Power	250 kW
Heavy Duty Current	385 A
Heavy Duty Power	200 kW
Light Duty Current	540 A
Light Duty Power	315 kW
Cooling	Forced Air / Air Cooled
Frame Size	Frame 8
Enclosure	Open Type
Protection	IP20 / IP00 open-type configuration
Dynamic Braking	None
Internal Dynamic Braking Transistor	No
Internal Braking Resistor	No
Filtering	Filtered
Common-Mode Capacitor Jumper	Installed
HIM	Blank / No HIM
Communication	Embedded Ethernet/IP
Control Function	Variable-Speed AC Motor Control
Typical Operating Temperature	Approximately 0–50 °C, configuration dependent
Storage Temperature	Approximately -40 to +70 °C
Approx. Dimensions	Approximately 2145 × 778 × 421 mm
Approx. Weight	Approximately 162 kg
Installation	Floor/cabinet integration
Cooling Requirement	Forced-Air Ventilation
Main Applications	Pumps, fans, conveyors, mining, process machinery, material handling

The dimensions and weight should be treated as approximate Frame 8 installation values. The final mechanical envelope can depend on the selected cabinet arrangement, power wiring, mounting hardware, option equipment, and installation configuration.

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4. Electrical Ratings

The 20G14TC460JN0NNNNN has three major application ratings: Light Duty, Normal Duty, and Heavy Duty.

This rating structure allows the same drive platform to be used for different types of motor loads.

Duty Rating	Continuous Current	Power Rating
Light Duty	540 A	315 kW
Normal Duty	460 A	250 kW
Heavy Duty	385 A	200 kW

The 460 A / 250 kW Normal Duty rating is the main rating normally associated with this catalog number.

The 385 A / 200 kW Heavy Duty rating should be considered when the application involves greater torque demand, more severe acceleration, higher overload requirements, or other demanding operating conditions.

The Light Duty rating provides approximately 540 A / 315 kW for applications where the load characteristics permit the corresponding duty classification.

This distinction is important because motor selection should not be based solely on horsepower or kilowatt rating. The actual motor current, load profile, acceleration requirements, operating cycle, and overload requirements should all be evaluated.

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5. 400 VAC Three-Phase Power System

The drive is designed around a 400 VAC three-phase system and belongs to the PowerFlex 755 common-DC-bus family.

The nominal DC input class is approximately 540 VDC.

Electrical Parameter	Specification
AC Voltage Class	400 VAC
Input Phase	Three Phase
DC Input	Yes
Nominal DC Voltage	Approximately 540 VDC
Precharge	Included
Normal Duty	460 A / 250 kW
Heavy Duty	385 A / 200 kW
Light Duty	540 A / 315 kW

The DC-input architecture makes this model particularly useful in installations where multiple drives are supplied from a common DC bus or where the power system is already designed around a DC distribution architecture.

This can be valuable in large production lines, coordinated motor systems, and industrial machinery containing multiple drives.

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6. Product Introduction

The 20G14TC460JN0NNNNN is a high-power variable-frequency drive intended to control large AC motors.

A variable-frequency drive allows the motor to operate at different speeds instead of being limited to the fixed frequency of the incoming utility supply.

The drive controls the electrical output supplied to the motor, allowing the motor’s speed and torque to be managed according to the needs of the machine.

This becomes particularly useful in large industrial equipment.

A pump may need full capacity during one part of a production process and much less capacity during another.

A conveyor may require a controlled acceleration sequence to prevent mechanical shock.

A large fan may only need to operate at a fraction of full speed during low-demand periods.

A process machine may require motor speed to follow a production recipe or process variable.

The PowerFlex 755 provides the control platform required to manage these applications at a much larger power level than compact machine drives.

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7. PowerFlex 755 Series Positioning

The PowerFlex 755 series is intended for industrial motor-control applications where flexibility and integration are important.

Compared with smaller drive families, the PowerFlex 755 is more commonly associated with:

• Large motors.
• Large production equipment.
• Industrial process systems.
• Pumps.
• Fans.
• Conveyors.
• Material handling.
• Mining equipment.
• Heavy machinery.
• Networked automation.
• Common-DC-bus systems.

The 20G14TC460JN0NNNNN is toward the high-power end of the family.

Its Frame 8 mechanical construction reflects the amount of electrical and thermal hardware required for a 460 A-class drive.

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8. JN0 Configuration

The JN0 configuration is one of the defining features of this model.

The J configuration indicates that the filtering and common-mode capacitor jumper arrangement is installed.

The N configuration indicates that there is no internal dynamic braking transistor.

The 0 position indicates a blank configuration with no HIM.

Catalog Section	Meaning
20G	PowerFlex 755 family
14	DC input with precharge configuration
TC	400 VAC / 540 VDC common-DC-bus family
460	460 A Normal Duty rating
J	Filtered / CM jumper installed
N	No internal dynamic braking transistor
0	Blank / No HIM
NNNNN	No additional options represented in these positions

This is why the exact catalog number matters when replacing or matching a drive.

Two PowerFlex 755 drives may have the same current and power rating while having different filtering, common-mode, braking, HIM, or option configurations.

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9. Dynamic Braking

The 20G14TC460JN0NNNNN has no internal dynamic braking transistor.

This is a key point when selecting the drive for applications with significant regenerative energy.

When a motor decelerates, its mechanical energy can be transferred back toward the drive’s DC bus.

If the regenerated energy is significant, the DC bus voltage can increase.

In a conventional motoring application with relatively slow deceleration, this may not be a major issue.

In high-inertia applications, however, braking can become a major engineering consideration.

Examples include:

• Large flywheels.
• Centrifuges.
• High-speed rotating equipment.
• Hoists.
• Cranes.
• Vertical lifting systems.
• Large conveyors.
• Rapid stopping systems.
• Unwind and rewind equipment.
• Machinery with frequent acceleration and deceleration.

For these applications, the braking system should be designed separately and matched to the actual regenerated energy.

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10. JN0 Versus JA0

The most direct configuration comparison is between the JN0 and JA0 versions.

Parameter	20G14TC460JN0NNNNN	20G14TC460JA0NNNNN
Voltage	400 VAC class	400 VAC class
Normal Duty Current	460 A	460 A
Normal Duty Power	250 kW	250 kW
Heavy Duty Current	385 A	385 A
Heavy Duty Power	200 kW	200 kW
Light Duty	540 A / 315 kW	540 A / 315 kW
Input	DC Input with Precharge	DC Input with Precharge
Frame	Frame 8	Frame 8
Cooling	Air Cooled	Air Cooled
Dynamic Braking	None	None
Filtering	Installed	Removed
CM Jumper	Installed	Removed
HIM	Blank / No HIM	Blank / No HIM
Dimensions	Approx. 2145 × 778 × 421 mm	Approx. 2145 × 778 × 421 mm
Weight	Approx. 162 kg	Approx. 162 kg

The main distinction between these configurations is the filtering and common-mode capacitor jumper arrangement.

The electrical rating remains essentially the same.

This makes the JN0/JA0 distinction particularly important when replacing an existing drive or maintaining a standardized electrical system.

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11. Mechanical Specifications

The 20G14TC460JN0NNNNN uses a Frame 8 architecture.

This is a large industrial drive assembly and requires substantially more installation space than smaller PowerFlex units.

Mechanical Parameter	Specification
Model / Part Number	20G14TC460JN0NNNNN
Frame	8
Construction	Open Type
Cooling	Forced Air
Approx. Height	2145 mm
Approx. Width	778 mm
Approx. Depth	421 mm
Approx. Overall Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg
Mounting	Floor / cabinet integration
Installation Type	Industrial enclosure
Service Access	Required
Ventilation	Required
Power Cable Access	Required
Handling	Mechanical handling equipment recommended

A Frame 8 drive should not be treated like a small wall-mounted inverter.

The installation normally requires careful planning for mechanical support, power wiring, airflow, service access, and cabinet layout.

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12. Cabinet Installation

Because the drive is an open-type Frame 8 unit, the final electrical enclosure is normally designed around the complete system.

The cabinet may contain:

• Main disconnect.
• Circuit protection.
• DC bus equipment.
• Control power.
• PLC equipment.
• Ethernet switches.
• I/O equipment.
• Safety equipment.
• Drive control components.
• Motor terminals.
• Cooling equipment.
• Grounding components.
• Auxiliary relays.

The approximate drive dimensions of 2145 × 778 × 421 mm should therefore not be interpreted as the complete cabinet dimensions.

Additional space is normally needed for wiring, cable bending radius, cooling airflow, maintenance access, and associated components.

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13. Frame 8 Handling Requirements

A drive of this size is heavy.

At approximately 162 kg, manual lifting is generally not appropriate.

Installation planning should therefore consider:

• Lifting equipment.
• Cabinet access.
• Floor loading.
• Transport path.
• Mounting structure.
• Power cable routing.
• Maintenance removal.
• Service access.

Frame 8 installations may also benefit from suitable mechanical handling equipment during cabinet installation and power wiring.

This is especially important when the drive is being installed into a large production cabinet where access can be restricted.

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14. Cooling and Heat Management

The drive uses forced-air cooling.

At a power level of 250 kW, thermal management is a major part of system design.

The drive produces heat during operation, and the cabinet must provide a suitable path for that heat to leave the electrical enclosure.

Important factors include:

• Ambient temperature.
• Cabinet temperature.
• Airflow volume.
• Fan capacity.
• Air inlet arrangement.
• Air outlet arrangement.
• Cabinet ventilation.
• Cooling filters.
• Dust accumulation.
• Nearby heat-producing equipment.
• Installation altitude.
• Maintenance conditions.

A large drive can operate reliably for many years when airflow is maintained properly.

A blocked ventilation path or failed cooling fan can create unnecessary thermal stress and should therefore be treated as a significant maintenance issue.

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15. Environmental Specifications

Environmental Parameter	Typical Specification
Model / Part Number	20G14TC460JN0NNNNN
Cooling	Forced Air
Typical Operating Temperature	Approximately 0–50 °C, configuration dependent
Alternative Published Range	Certain configurations may allow broader ranges
Storage Temperature	Approximately -40 to +70 °C
Installation Environment	Industrial
Humidity	Non-condensing environment recommended
Condensation	Avoid
Airflow	Required
Dust Control	Recommended
Cabinet Ventilation	Required

Environmental conditions can have a direct effect on drive life.

A high ambient temperature can increase internal component temperatures.

Dust can restrict airflow.

Condensation can create electrical problems.

For this reason, the physical environment should be considered as part of the drive-selection process.

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16. Embedded Ethernet/IP

The PowerFlex 755 platform includes embedded Ethernet/IP communication.

This allows the drive to participate in an Ethernet-based industrial control architecture.

A typical system can include:

• PLC.
• HMI.
• Ethernet switch.
• PowerFlex 755 drive.
• Motor.
• Sensors.
• Process instruments.
• Safety systems.

The drive can exchange operating information with the control system, including speed commands, operating status, fault information, and other drive-related data.

For large production lines, this can significantly simplify drive coordination and troubleshooting.

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17. Application: Large Pumps

Large pumps are one of the most common applications for high-power variable-frequency drives.

The drive can control motor speed according to actual process demand.

Potential applications include:

• Water treatment.
• Cooling water.
• Industrial water circulation.
• Pipeline systems.
• Process pumping.
• Mining pumps.
• Utility systems.
• Chemical processing.

The main benefit is that the motor does not necessarily need to operate continuously at full speed.

Variable-speed control can allow the pump to match actual flow requirements more closely.

For variable-torque pump applications, this can also provide opportunities for energy savings.

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18. Application: Large Fans and Blowers

Large fans and blowers can also benefit from variable-speed operation.

Typical applications include:

• Industrial ventilation.
• Furnace systems.
• Exhaust systems.
• Dust collection.
• Process air.
• Cooling systems.
• Large air-handling equipment.

Instead of running at maximum speed continuously, the motor can operate at a speed more appropriate to the required airflow.

This can improve process control and may reduce energy consumption in applications where full airflow is not continuously required.

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19. Application: Conveyor Systems

Large conveyors can require substantial motor power.

The drive can provide:

• Controlled acceleration.
• Controlled deceleration.
• Adjustable conveyor speed.
• Production-rate matching.
• Motor torque control.
• Reduced mechanical shock.
• Coordination with other equipment.

This can be particularly valuable for long conveyors used in mining, bulk handling, ports, and heavy manufacturing.

For conveyors with high inertia or rapid stopping requirements, braking must be evaluated separately because this model does not contain an internal dynamic braking transistor.

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20. Application: Mining Equipment

Mining and mineral-processing equipment can require very large motors.

Potential applications include:

• Ore conveyors.
• Crushers.
• Large fans.
• Pumps.
• Feeders.
• Material-handling systems.
• Processing machinery.

The high current capability of the 20G14TC460JN0NNNNN makes it appropriate for many large motor applications.

However, the environmental design remains important.

Dust, temperature, vibration, cooling, and cabinet protection all need to be considered in a mining installation.

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21. Application: Material Handling

Large material-handling systems frequently require controlled motor speed.

The drive can be used in:

• Bulk material systems.
• Conveyor lines.
• Transfer stations.
• Feed systems.
• Industrial handling machines.
• Large production equipment.

Network communication can also allow multiple drives to be coordinated through a central control system.

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22. Application: Process Machinery

Large process machinery can use variable-speed motor control to maintain a desired production condition.

Possible applications include:

• Mixers.
• Agitators.
• Large process fans.
• Rotating equipment.
• Industrial machinery.
• Processing lines.
• Large mechanical systems.

The correct duty rating should be selected based on the actual load rather than simply the motor’s nameplate kW.

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23. Application: Common DC Bus Systems

The TC configuration is especially relevant to common-DC-bus systems.

In a common DC-bus installation, multiple drive sections can share a DC power source.

Potential benefits include:

• Shared DC power infrastructure.
• Coordinated drive operation.
• Reduced duplication of certain power components.
• Regenerative energy sharing between drives.
• Centralized power architecture.
• Flexible multi-drive system design.

This type of architecture is particularly useful for large production machines containing several coordinated motors.

The complete DC-bus design must be engineered carefully, including precharge, DC protection, grounding, regenerative energy, and fault protection.

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24. Main Product Advantages

High Current Capacity

The 460 A Normal Duty rating makes the drive suitable for large industrial motors.

250 kW Normal Duty Power

The 250 kW Normal Duty rating places this drive in the high-power industrial category.

200 kW Heavy Duty Power

The 200 kW Heavy Duty rating gives the drive substantial capacity for more demanding load profiles.

315 kW Light Duty Capability

The Light Duty rating provides additional flexibility for applications where the load profile permits that classification.

400 VAC Architecture

The 400 VAC system makes the drive suitable for common industrial power systems in many international installations.

Common DC-Bus Compatibility

The DC-input architecture makes the drive particularly useful for common-DC-bus systems.

Embedded Ethernet/IP

The built-in Ethernet/IP interface simplifies integration with industrial automation systems.

Forced-Air Cooling

Air cooling provides a practical thermal-management method for a large industrial drive.

Frame 8 Construction

The Frame 8 architecture provides the physical and electrical capacity required for large industrial motors.

Open-Type Installation

The open design allows the drive to be integrated into a larger custom cabinet.

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25. Advantages for System Integrators

System integrators can use this model as a high-power motor-control section within a larger electrical system.

The drive can be integrated with:

• PLC systems.
• HMI systems.
• Industrial Ethernet.
• Motor protection.
• DC-bus equipment.
• Safety systems.
• Sensors.
• Auxiliary controls.
• Cabinet cooling.

The embedded communication capability can reduce the number of additional communication components required for basic network integration.

The open-frame construction also allows the integrator to design the enclosure according to the requirements of the entire machine.

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26. Advantages for OEM Machine Builders

For machine builders, the PowerFlex 755 platform provides a scalable approach to high-power motor control.

The same general family can cover different motor sizes.

This can simplify:

• Engineering.
• Programming.
• Maintenance.
• Spare-parts planning.
• Operator training.
• Drive replacement.
• Standardization.

For machines using multiple large motors, this common platform approach can be particularly useful.

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27. Advantages for End Users

For end users, the main advantage is controllability.

A large motor can be started and stopped in a controlled manner rather than simply switching it directly between off and full-speed operation.

Potential benefits include:

• Adjustable speed.
• Controlled acceleration.
• Controlled deceleration.
• Better process matching.
• Reduced mechanical shock.
• Improved automation.
• Network-based monitoring.
• Easier fault diagnosis.
• Production flexibility.

Energy savings are application dependent, but variable-speed operation can be particularly effective on variable-torque loads.

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28. Motor Selection Considerations

Before selecting the 20G14TC460JN0NNNNN, the motor nameplate should be reviewed carefully.

Motor Parameter	Importance
Motor Voltage	Must be compatible with the output system
Motor Current	Critical for drive sizing
Motor Power	Used together with current and duty
Rated Frequency	Important for speed control
Base Speed	Determines normal operating range
Motor Type	Affects control requirements
Starting Torque	Important for Heavy Duty applications
Service Factor	Helps evaluate loading
Motor Efficiency	Affects current and system performance
Load Inertia	Important for acceleration/deceleration
Regenerative Energy	Important for braking design

The 460 A rating should not be interpreted as meaning that any 250 kW motor can automatically be connected without additional evaluation.

Actual motor current is one of the most important selection criteria.

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29. Normal Duty Versus Heavy Duty

The distinction between Normal Duty and Heavy Duty is particularly important for large motors.

Rating	Current	Power	Typical Load Characteristic
Light Duty	540 A	315 kW	Lower overload demand
Normal Duty	460 A	250 kW	Standard industrial loading
Heavy Duty	385 A	200 kW	More demanding overload conditions

A large fan may have relatively predictable loading.

A conveyor may have high starting torque.

A crusher may have severe transient loads.

A mixer may have varying mechanical resistance.

Therefore, the same motor kW rating does not necessarily imply the same drive-duty selection.

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30. Five Recommended Models From the Same Series

The following models are closely related PowerFlex 755 common-DC-bus selections.

Model / Part Number	Light Duty	Normal Duty	Heavy Duty	Frame	Braking	Dimensions	Weight
20G14TC460JN0NNNNN	540 A / 315 kW	460 A / 250 kW	385 A / 200 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC540JN0NNNNN	585 A / 315 kW	540 A / 315 kW	456 A / 250 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC567JN0NNNNN	612 A / 355 kW	567 A / 315 kW	472 A / 250 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC650JN0NNNNN	750 A / 400 kW	650 A / 355 kW	540 A / 315 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC750JN0NNNNN	796 A / 450 kW	750 A / 400 kW	585 A / 315 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg

These models are useful when a system requires more current or greater motor power than the 460 A model.

The 540 A version is a logical step upward for applications requiring more Normal Duty capacity.

The 567 A, 650 A, and 750 A versions provide progressively greater capacity for larger industrial motors.

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31. Related 690 VAC PowerFlex 755 Models

For users working with both 400 VAC and 690 VAC systems, the following PowerFlex 755 models provide a useful comparison.

Model / Part Number	Voltage	Normal Duty	Heavy Duty	Frame	Braking	Dimensions	Weight
20G14NF171JA0NNNNN	690 VAC	171 A / 160 kW	142 A / 132 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF212JA0NNNNN	690 VAC	212 A / 200 kW	171 A / 160 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF212JN0NNNNN	690 VAC	212 A / 200 kW	171 A / 160 kW	7	None	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF263JA0NNNNN	690 VAC	263 A / 250 kW	212 A / 200 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF263JN0NNNNN	690 VAC	263 A / 250 kW	212 A / 200 kW	7	None	430 × 881.5 × 349.6 mm	72.6–108.9 kg

These models are not direct electrical replacements for the 400 VAC TC model.

They are included because they belong to the same PowerFlex 755 family and are useful when comparing high-power drive architecture across different voltage systems.

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32. Five Popular Allen-Bradley Models

The following models provide a broader comparison across the Allen-Bradley drive range.

Model / Part Number	Series	Voltage Class	Current Class	Approx. Power Class	Cooling	Main Application	Dimensions	Weight
25B-D017N114	PowerFlex 525	480 VAC class	17 A	Approx. 7.5 kW	Air Cooled	Compact machinery	Configuration dependent	Configuration dependent
25B-D024N114	PowerFlex 525	480 VAC class	24 A	Approx. 11 kW	Air Cooled	Machine control	Configuration dependent	Configuration dependent
25B-D030N114	PowerFlex 525	480 VAC class	30 A	Approx. 15 kW	Air Cooled	Industrial machines	Configuration dependent	Configuration dependent
20G11NC5P0JA0NNNNN	PowerFlex 755	480 VAC class	50 A class	Approx. 37–45 kW	Air Cooled	Industrial motor control	Configuration dependent	Configuration dependent
20G11NC072JA0NNNNN	PowerFlex 755	480 VAC class	72 A class	Approx. 55 kW	Air Cooled	Industrial motor control	Configuration dependent	Configuration dependent

These models illustrate the wide range of motor-control applications covered by the Allen-Bradley drive portfolio.

The PowerFlex 525 models are much smaller and are generally more appropriate for compact machines.

The PowerFlex 755 models are designed for larger, more sophisticated industrial systems.

The 20G14TC460JN0NNNNN is substantially larger and is intended for high-power industrial applications.

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33. Power-Level Comparison Within the TC Family

Model / Part Number	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame	Approx. Weight
20G14TC460JN0NNNNN	460 A	250 kW	385 A	200 kW	8	Approx. 162 kg
20G14TC540JN0NNNNN	540 A	315 kW	456 A	250 kW	8	Approx. 162 kg
20G14TC567JN0NNNNN	567 A	315 kW	472 A	250 kW	8	Approx. 162 kg
20G14TC650JN0NNNNN	650 A	355 kW	540 A	315 kW	8	Approx. 162 kg
20G14TC750JN0NNNNN	750 A	400 kW	585 A	315 kW	8	Approx. 162 kg

This progression makes it easier to select the appropriate drive according to the motor’s actual current requirement.

The 460 A model should be selected when its applicable duty rating provides sufficient capacity for the motor and load.

If the motor current is significantly higher, moving to the 540 A, 567 A, 650 A, or 750 A configurations may be more appropriate.

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34. 460 A Model Versus 540 A Model

The 20G14TC540JN0NNNNN is one of the most useful alternatives when the 460 A model is close to its current limit.

Parameter	20G14TC460JN0NNNNN	20G14TC540JN0NNNNN
Voltage	400 VAC class	400 VAC class
Normal Duty Current	460 A	540 A
Normal Duty Power	250 kW	315 kW
Heavy Duty Current	385 A	456 A
Heavy Duty Power	200 kW	250 kW
Light Duty	540 A / 315 kW	585 A / 315 kW
Frame	8	8
Cooling	Air Cooled	Air Cooled
Dynamic Braking	None	None
Filtering	Filtered	Filtered
CM Jumper	Installed	Installed
Dimensions	Approx. 2145 × 778 × 421 mm	Approx. 2145 × 778 × 421 mm
Weight	Approx. 162 kg	Approx. 162 kg

The 540 A version provides a significant increase in current capacity and should be considered when the motor or application is approaching the upper limit of the 460 A model.

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35. Common Applications by Drive Duty

Application	Typical Drive Evaluation	Main Consideration
Large centrifugal pump	Normal Duty / Light Duty	Variable-torque load
Large fan	Normal Duty / Light Duty	Continuous operation
Large blower	Normal Duty	Thermal loading
Conveyor	Heavy Duty evaluation	Starting torque
Crusher	Heavy Duty	Severe mechanical loading
Mixer	Heavy Duty evaluation	Variable torque
Hoist	Heavy Duty	Regeneration and braking
Crane	Heavy Duty	Braking and vertical load
Centrifuge	Application dependent	High inertia
Mining conveyor	Heavy Duty evaluation	Torque and environment
Process pump	Normal Duty	Process control
Large material handling	Normal/Heavy Duty	Acceleration and coordination

The table is intended as a practical starting point.

Actual selection should be based on the motor nameplate, load characteristics, operating cycle, acceleration/deceleration profile, and environmental conditions.

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36. Control and Automation Advantages

The PowerFlex 755 platform is particularly useful when the drive is integrated into a larger automation system.

A typical architecture might contain:

Controller → Ethernet Network → PowerFlex 755 → Large AC Motor → Mechanical Load

The controller can provide speed or torque commands.

The drive converts those commands into controlled electrical output.

The motor converts electrical energy into mechanical energy.

The process equipment then performs the required industrial operation.

This architecture allows motor control to become part of the overall production process rather than operating independently.

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37. Maintenance Recommendations

A high-power air-cooled drive should receive regular inspection.

Important maintenance items include:

Maintenance Item	Recommended Attention
Cooling Fans	Check operation and abnormal noise
Airflow	Keep passages clear
Filters	Inspect and clean/replace as required
Power Connections	Check for overheating or loose connections
Grounding	Verify connection integrity
Control Wiring	Inspect terminals and wiring
Ethernet	Check communication connections
Cabinet Temperature	Monitor abnormal temperature rise
Fault History	Review recurring faults
Physical Condition	Check for contamination or damage
Mechanical Mounting	Verify structural security
Ventilation	Confirm airflow remains adequate

Cooling maintenance is particularly important because this is a large forced-air drive.

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38. Replacement and Spare-Parts Considerations

When replacing an existing drive, the entire catalog number should be compared.

Do not compare only the current rating.

The following items should also be checked:

• Voltage.
• Input architecture.
• DC-bus requirements.
• Frame size.
• Filtering.
• Common-mode jumper.
• Dynamic braking.
• HIM.
• Communication.
• Enclosure.
• Cooling.
• Mounting arrangement.
• Cabinet dimensions.

For example, 20G14TC460JN0NNNNN and 20G14TC460AN0NNNNN have similar power ratings but differ in their filtering/common-mode configuration.

This can matter when a replacement drive is being installed into an existing electrical system.

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39. Installation Checklist

Item	Requirement
Motor Voltage	Verify compatibility
Motor Current	Verify against applicable duty rating
Motor Power	Verify Normal/Heavy/Light Duty classification
Input Power	Confirm 400 VAC / DC-bus architecture
Precharge	Confirm system arrangement
Braking	Confirm no internal DB transistor is acceptable
Frame	Frame 8
Cabinet	Adequate physical size
Dimensions	Approx. 2145 × 778 × 421 mm
Weight	Approx. 162 kg
Cooling	Forced-air system required
Ventilation	Adequate cabinet airflow
Ethernet	Confirm network architecture
Grounding	Proper industrial grounding
Cable Routing	Appropriate separation of power/control wiring
Maintenance	Adequate service clearance
Handling	Mechanical handling equipment recommended

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40. Main Benefits for Industrial Systems

The 20G14TC460JN0NNNNN offers several practical advantages when used in the correct application.

First, it provides a substantial 460 A Normal Duty capacity.

Second, the 250 kW Normal Duty rating allows it to control large industrial motors.

Third, the 200 kW Heavy Duty rating gives it useful capacity for more demanding loads.

Fourth, the 315 kW Light Duty capability provides additional application flexibility.

Fifth, the DC input with precharge architecture makes it suitable for common-DC-bus systems.

Sixth, the embedded Ethernet/IP capability allows straightforward integration into industrial automation systems.

Seventh, the Frame 8 open-type construction provides a practical foundation for large custom cabinets.

Finally, the filtered configuration with CM jumper installed makes it appropriate for installations where that electrical configuration is required.

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41. Product Selection Summary

Selection Requirement	20G14TC460JN0NNNNN
400 VAC System	Yes
Three Phase	Yes
Common DC Bus	Yes
DC Input	Yes
Precharge	Yes
460 A Normal Duty	Yes
250 kW Normal Duty	Yes
385 A Heavy Duty	Yes
200 kW Heavy Duty	Yes
540 A Light Duty	Yes
315 kW Light Duty	Yes
Frame 8	Yes
Air Cooled	Yes
Open Type	Yes
Filtered	Yes
CM Jumper Installed	Yes
Dynamic Braking Transistor	No
Internal Braking Resistor	No
HIM	Blank / No HIM
Embedded Ethernet/IP	Yes
Approx. Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg

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42. Five Same-Series Models for Practical Selection

Model / Part Number	ND Current	ND Power	HD Current	HD Power	Frame	Braking	Dimensions	Weight
20G14TC460JN0NNNNN	460 A	250 kW	385 A	200 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC540JN0NNNNN	540 A	315 kW	456 A	250 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC567JN0NNNNN	567 A	315 kW	472 A	250 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC650JN0NNNNN	650 A	355 kW	540 A	315 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC750JN0NNNNN	750 A	400 kW	585 A	315 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg

These five models are the most natural same-family choices when the system is built around the same general 540 VDC common-bus architecture.

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43. Five Popular Models From the Same Brand

Model / Part Number	Product Series	Voltage Class	Current	Approx. Power	Cooling	Typical Application	Dimensions	Weight
25B-D017N114	PowerFlex 525	480 VAC class	17 A	Approx. 7.5 kW	Air Cooled	Compact machinery	Configuration dependent	Configuration dependent
25B-D024N114	PowerFlex 525	480 VAC class	24 A	Approx. 11 kW	Air Cooled	Machine control	Configuration dependent	Configuration dependent
25B-D030N114	PowerFlex 525	480 VAC class	30 A	Approx. 15 kW	Air Cooled	Industrial machines	Configuration dependent	Configuration dependent
20G11NC5P0JA0NNNNN	PowerFlex 755	480 VAC class	50 A class	Approx. 37–45 kW	Air Cooled	Industrial motor control	Configuration dependent	Configuration dependent
20G11NC072JA0NNNNN	PowerFlex 755	480 VAC class	72 A class	Approx. 55 kW	Air Cooled	Industrial motor control	Configuration dependent	Configuration dependent

The first three models are more appropriate for smaller machinery.

The last two provide a bridge into larger industrial PowerFlex 755 applications.

The 20G14TC460JN0NNNNN is intended for a much higher power class and requires substantially more installation space.

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44. Why the 20G14TC460JN0NNNNN Is a Strong Choice

The model is particularly attractive when the application has the following characteristics:

• 400 VAC three-phase electrical architecture.
• Common DC-bus requirement.
• Nominal 540 VDC input architecture.
• Large AC motor.
• Motor current within the 460 A Normal Duty rating.
• Motor power around 250 kW Normal Duty.
• Heavy Duty requirement up to approximately 200 kW.
• Air-cooled installation.
• Frame 8 cabinet.
• Ethernet/IP communication.
• Filtered configuration.
• CM jumper installed.
• No requirement for an internal dynamic braking transistor.

It is a strong fit for large industrial machines where the drive is part of a larger automation and power-distribution system.

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45. When to Consider a Different Model

A different drive should be considered when the motor current exceeds the applicable rating.

For example, if the motor requires more than the 460 A Normal Duty capacity, the 540 A, 567 A, 650 A, or 750 A models may be evaluated.

If the application requires a different filtering/common-mode configuration, another catalog-number variant may be more appropriate.

If the application has significant regenerative energy, the braking architecture should be reviewed carefully because the 20G14TC460JN0NNNNN has no internal dynamic braking transistor.

If the motor is much smaller, a lower-power PowerFlex 755 or PowerFlex 525 model may be more practical.

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46. Final Detailed Specification Table

Parameter	20G14TC460JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Family Group	PowerFlex 750-Series
Product Type	High-Power AC Drive
Voltage	400 VAC class
Phase	3 Phase
Input	DC Input with Precharge
Nominal DC Bus	Approximately 540 VDC
Light Duty Current	540 A
Light Duty Power	315 kW
Normal Duty Current	460 A
Normal Duty Power	250 kW
Heavy Duty Current	385 A
Heavy Duty Power	200 kW
Cooling	Air Cooled / Forced Air
Frame	Frame 8
Enclosure	Open Type
Protection	IP20/IP00 open-type configuration
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Internal DB Transistor	No
Internal Braking Resistor	No
HIM	Blank / No HIM
Communication	Embedded Ethernet/IP
Typical Operating Temperature	Approximately 0–50 °C
Storage Temperature	Approximately -40 to +70 °C
Approx. Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg
Installation	Floor/cabinet integration
Cooling Requirement	Forced Air
Main Applications	Pumps, fans, conveyors, mining, process machinery, material handling
Main Advantage	High-power 400 VAC/common-DC-bus motor control

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47. Final Product Assessment

The Allen-Bradley 20G14TC460JN0NNNNN is a high-capacity PowerFlex 755 AC Drive designed for large industrial motor-control applications.

Its principal rating is 460 A Normal Duty / 250 kW, with a 385 A / 200 kW Heavy Duty rating and approximately 540 A / 315 kW Light Duty capability.

The drive is designed for a 400 VAC three-phase system and uses a DC input with precharge, making it especially relevant to common-DC-bus installations.

Its Frame 8, forced-air, open-type construction makes it a substantial industrial component. The approximate mechanical envelope is 2145 × 778 × 421 mm, with a weight of approximately 162 kg.

The embedded Ethernet/IP interface makes the drive well suited to networked automation systems.

The JN0 configuration is also important. It provides the filtered configuration with the common-mode jumper installed, while the dynamic braking configuration is None. There is no internal dynamic braking transistor or internal braking resistor.

For applications such as large pumps, industrial fans, conveyors, mining equipment, process machinery, material-handling systems, and large common-DC-bus production systems, the drive provides a strong combination of high current capacity, large motor power capability, network connectivity, and cabinet-level flexibility.

The most closely related models are the 20G14TC540JN0NNNNN, 20G14TC567JN0NNNNN, 20G14TC650JN0NNNNN, and 20G14TC750JN0NNNNN, which provide progressively greater current and power capability within the same general family.

For applications requiring a different filtering/common-mode configuration, the corresponding JA0 version should be evaluated.

For applications requiring dynamic braking, the braking architecture should be reviewed independently because the requested 20G14TC460JN0NNNNN does not include an internal dynamic braking transistor.

Overall, the 20G14TC460JN0NNNNN is best suited to large, engineered industrial systems where high motor power, common-DC-bus capability, Ethernet/IP integration, forced-air cooling, and PowerFlex 755 platform compatibility are important selection criteria.