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Allen-Bradley 20G14TF460JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G14TF460JN0NNNNN is a high-power PowerFlex 755 air-cooled AC drive designed for large industrial motor-control applications.

It belongs to the PowerFlex 750 Series and is part of the PowerFlex 755 family of industrial variable-frequency drives. The 20G14TF460JN0NNNNN is a high-capacity configuration intended for applications where large motors, high operating power, substantial current capacity, and integration with a plant-wide automation system are required.

The drive is rated in the 690 VAC, three-phase class and has a 460 A current rating. Its published duty ratings are approximately 500 kW Light Duty, 450 kW Normal Duty, and 375 kW Heavy Duty.

A particularly important feature of this catalog configuration is its DC-input with precharge architecture. It is intended for high-power common-bus applications rather than being treated simply as a conventional standalone AC-line-input drive.

The 20G14TF460JN0NNNNN uses a Frame 8 construction and forced-air cooling. This makes it appropriate for large industrial electrical installations where sufficient cabinet space, airflow, power distribution, cable routing, maintenance clearance, and mechanical handling provisions are available.

The configuration also includes filtered operation with the common-mode capacitor jumper installed, no dynamic braking, and a blank/no-HIM arrangement.

2. Brand, Product Family and Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750 Series
Product Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Catalog Number	20G14TF460JN0NNNNN
Drive Configuration	High-Power TF Common-Bus Configuration
Voltage Class	690 VAC
Phase	3 Phase
Current Rating	460 A
Input Architecture	DC Input with Precharge
Nominal DC-Bus Class	932 VDC
Light Duty Rating	500 kW
Normal Duty Rating	450 kW
Heavy Duty Rating	375 kW
Frame	Frame 8
Cooling	Forced Air / Air Cooled
Enclosure	Open Type
Filtering	Filtered
CM Capacitor Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Industrial Network	Embedded EtherNet/IP
Typical Application	Large Industrial Motor Control

The TF family is identified as a 932 VDC nominal common-bus drive family, with the 460 A configuration providing 500 kW Light Duty, 450 kW Normal Duty, and 375 kW Heavy Duty capability when used as a single Frame 8 drive.

3. Main Technical Parameters

Parameter	Specification
Model	20G14TF460JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750 Series
Product Series	PowerFlex 755
Drive Type	Air-Cooled AC Drive
Voltage Class	690 VAC
Input Phase	3 Phase System Class
Current Rating	460 A
Light Duty Current	500 A
Normal Duty Current	460 A
Heavy Duty Current	375 A
Light Duty Power	500 kW
Normal Duty Power	450 kW
Heavy Duty Power	375 kW
Input Type	DC Input with Precharge
Nominal DC Bus	932 VDC
Frame Size	Frame 8
Cooling	Forced Air
Enclosure	Open Type
EMC Filtering	Filtered
CM Capacitor Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Network Capability	Embedded EtherNet/IP
Mounting	Industrial Cabinet / Floor-Mount Installation
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Configuration-dependent
Installed Weight	Configuration-dependent kg
Shipping Weight	Configuration-dependent kg
Typical Duty	Large Industrial Continuous Operation

The catalog description identifies the model as a 460 A PowerFlex 755 AC drive with embedded EtherNet/IP, air cooling, DC input with precharge, open-type Frame 8 construction, 690 VAC, filtered configuration, CM jumper installed, no dynamic braking, and no HIM.

4. Current and Power Rating

The 460 A rating places the 20G14TF460JN0NNNNN toward the upper end of the single-unit Frame 8 TF drive range.

Its principal ratings are:

Duty Classification	Continuous Output Current	Power Rating
Light Duty	500 A	500 kW
Normal Duty	460 A	450 kW
Heavy Duty	375 A	375 kW

These ratings provide flexibility for different types of motor loads.

A motor application with relatively moderate overload requirements may be evaluated against the Normal Duty rating, while a high-torque or heavily loaded application may need to be evaluated against the Heavy Duty rating.

For example, a large centrifugal fan and a heavily loaded conveyor may have similar motor power but very different drive requirements.

The Heavy Duty rating is particularly important when the motor must repeatedly accelerate a high-inertia load, maintain high torque at low speed, or withstand substantial overload conditions.

The published TF technical data confirms the 460 A / 500 kW LD, 460 A / 450 kW ND, and 375 A / 375 kW HD rating combination for the single-drive 20G14TF460JN configuration.

5. 690 VAC Voltage Class

The 20G14TF460JN0NNNNN belongs to the 690 VAC three-phase industrial voltage class.

This voltage level is commonly used for large industrial motors because higher motor voltage can reduce the current required for a given motor power compared with lower-voltage systems.

For large installations, this can influence:

• Motor feeder sizing.
• Power cable selection.
• Busbar sizing.
• Switchgear selection.
• Transformer arrangements.
• Electrical losses.
• Cabinet design.
• Motor-terminal equipment.

The 690 VAC figure should be understood as the drive’s voltage class and associated motor/system class.

The TF configuration itself uses a DC input with precharge, so the complete electrical system must be designed around the appropriate DC-bus architecture rather than treating the drive as a conventional standalone 690 VAC AC-input unit.

6. DC Input and Common-Bus Architecture

One of the defining characteristics of the 20G14TF460JN0NNNNN is its DC-input architecture.

This configuration is associated with a 932 VDC nominal common-bus system.

A common-bus arrangement allows multiple drive sections to share a coordinated DC power system.

This can be particularly useful in large production lines where several motors operate as part of the same mechanical process.

A common-bus system can also provide a more coordinated electrical architecture for multiple drives and can be advantageous when the overall system has been designed around shared DC power.

The precharge function is especially important because high-power drives contain substantial DC-link capacitance.

During initial energization, the precharge arrangement controls the charging process and helps limit the initial charging current.

The overall system should therefore consider:

• DC-bus voltage.
• Precharge.
• Bus protection.
• Disconnecting equipment.
• Fusing.
• Grounding.
• DC-bus isolation.
• Capacitor discharge.
• Emergency isolation.
• Common-bus coordination.

The PowerFlex technical data identifies the TF configuration as a 932 VDC nominal common-bus drive, with the 460 A model using one Frame 8 drive for the basic configuration.

7. Frame 8 Construction

The 20G14TF460JN0NNNNN is a Frame 8 drive.

Frame 8 is designed for large-power applications and is physically much larger than the smaller PowerFlex drive frames.

The installation therefore requires careful mechanical planning.

Important considerations include:

• Cabinet dimensions.
• Floor space.
• Cable-entry space.
• DC-bus connections.
• Motor-cable bending radius.
• Power-terminal accessibility.
• Airflow.
• Heat dissipation.
• Maintenance clearance.
• Drive removal space.
• Mechanical handling.

For Frame 8 through Frame 10 installations, a suitable rollout or handling arrangement may be required to assist with power wiring and cabinet mounting.

Because the final physical configuration can vary, exact dimensions should not be guessed.

For this product description:

Dimensions: Configuration-dependent

Weight: Configuration-dependent kg

This is more appropriate for engineering documentation than providing an estimated size or weight that may not correspond to the actual configuration.

8. Dimensions and Weight

Physical Parameter	Specification
Frame Size	Frame 8
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Configuration-dependent
Mounting Footprint	Configuration-dependent
Cabinet Clearance	Configuration-dependent
Cable Clearance	Configuration-dependent
Installed Weight	Configuration-dependent kg
Shipping Weight	Configuration-dependent kg
Handling Requirement	Suitable Frame 8 handling provisions recommended
Service Clearance	Configuration-dependent

The actual mechanical dimensions and final weight should be selected from the mechanical configuration applicable to the intended installation.

This is particularly important for large Frame 8 equipment because the physical arrangement can be influenced by option kits, cabinet construction, power connections, mounting arrangement, and associated installation hardware.

9. Cooling System

The 20G14TF460JN0NNNNN uses forced-air cooling.

Forced-air cooling is widely used for high-power industrial drives because it provides a practical method of removing heat from the power electronics.

The effectiveness of the cooling system depends on the installation environment.

A properly designed installation should provide:

• Adequate air intake.
• Adequate exhaust airflow.
• Correct cabinet ventilation.
• Sufficient clearance around heat-generating components.
• Controlled ambient temperature.
• Clean airflow paths.
• Periodic fan inspection.

Dust and contamination are particularly important in environments such as mining, cement production, aggregate processing, and bulk-material handling.

A high-power drive should therefore be installed in an environment where cooling airflow can be maintained reliably.

10. EMC Filtering and CM Jumper

The J configuration is associated with the installed filtering and common-mode capacitor jumper arrangement.

For the 20G14TF460JN0NNNNN, the configuration is:

Filtered, CM Jumper Installed

The catalog structure identifies the 11th character as the element that determines the filtering and common-mode capacitor jumper configuration, with J indicating installed and A indicating removed.

Filtering is important in industrial installations where high-power switching equipment operates near PLCs, instrumentation, communication equipment, sensors, and other sensitive electronics.

The final EMC performance still depends on the complete installation, including:

• Motor-cable construction.
• Cable length.
• Shielding.
• Grounding.
• Cabinet layout.
• Motor grounding.
• Cable separation.
• Nearby electrical equipment.

11. Dynamic Braking

The 20G14TF460JN0NNNNN is configured with no dynamic braking.

This is an important consideration when selecting the drive for applications involving large rotating masses or frequent deceleration.

During deceleration, an electric motor can return energy toward the DC bus.

If this occurs frequently, the drive system must have an appropriate strategy for handling the regenerated energy.

Applications requiring special evaluation include:

• Large conveyors.
• High-inertia fans.
• Centrifuges.
• Hoists.
• Cranes.
• Winders.
• Unwinders.
• Rapid-cycle machinery.
• Large rotating process equipment.

If rapid deceleration is required, an external braking or regenerative solution may need to be incorporated into the overall system.

12. Human Interface

The specified catalog configuration has a Blank / No HIM arrangement.

This means that the drive does not depend on a permanently mounted local Human Interface Module for routine operation.

This can be advantageous in centralized automation systems where the drive is controlled from:

• PLCs.
• DCS systems.
• SCADA systems.
• Central operator stations.
• Industrial networks.
• Supervisory control systems.

The operator can potentially monitor motor speed, current, drive status, alarms, faults, and other information from a central control system rather than directly at the drive cabinet.

13. Embedded EtherNet/IP

The 20G14TF460JN0NNNNN is specified as a PowerFlex 755 configuration with embedded EtherNet/IP.

This allows the drive to be integrated into an industrial automation network.

Typical network functions can include:

• Start/stop control.
• Speed reference.
• Torque reference.
• Drive status.
• Fault monitoring.
• Alarm monitoring.
• Parameter access.
• Diagnostic information.
• Production monitoring.
• Remote troubleshooting.
• Coordination with other drives.

For a large industrial plant, this can greatly simplify centralized control of multiple motors.

14. Product Introduction

The Allen-Bradley 20G14TF460JN0NNNNN PowerFlex 755 is a high-power variable-frequency drive intended for large industrial motors and complex machine systems.

Its 460 A current capacity and 450 kW Normal Duty rating place it firmly in the high-power industrial category.

The drive is particularly suited to installations where a large motor must operate with controlled speed, controlled acceleration, stable torque production, and integration with an automation system.

The DC-input/common-bus architecture is another important characteristic.

Rather than focusing only on standalone motor operation, this configuration can be incorporated into larger electrical systems where multiple drives share a common DC bus.

The combination of high current, high voltage, Frame 8 construction, forced-air cooling, filtering, precharge, and network integration makes the drive suitable for a wide variety of demanding industrial applications.

15. Main Product Advantages

15.1 High Current Capacity

The 460 A current class provides substantial output capability for large motors.

This allows the drive to serve applications that would be beyond the practical range of smaller PowerFlex configurations.

15.2 High Power Rating

The approximately 450 kW Normal Duty rating makes the drive suitable for large industrial machinery.

The 375 kW Heavy Duty rating provides a substantial capacity for demanding torque applications.

15.3 690 VAC Industrial Class

The 690 VAC class is appropriate for large industrial motor systems.

It can help reduce current levels compared with equivalent-power motors operating at lower voltage.

15.4 Common-Bus Compatibility

The DC-input architecture makes this configuration particularly useful for common-bus systems.

This is one of the most important differences between the TF configuration and a conventional standalone AC-input drive.

15.5 Integrated Precharge

The precharge arrangement supports controlled energization of the DC-link system.

This is especially important for large drives with significant DC-link capacitance.

15.6 Industrial Network Integration

Embedded EtherNet/IP allows the drive to become part of a broader automation architecture.

This can reduce the need for separate local control systems and make centralized monitoring easier.

15.7 Forced-Air Cooling

Air cooling provides a practical thermal-management approach for large industrial installations.

It is familiar to maintenance personnel and can be integrated into conventional industrial ventilation systems.

15.8 Flexible Duty Ratings

The Light Duty, Normal Duty, and Heavy Duty ratings allow the same drive family to address different load profiles.

This makes it easier to select a drive based on the actual mechanical duty instead of relying only on motor horsepower.

15.9 High-Power Frame Construction

Frame 8 provides a suitable physical platform for high-current industrial equipment.

It is intended for engineered installations where large power connections and substantial thermal management are required.

16. Typical Industrial Applications

16.1 Mining Conveyors

Mining conveyors frequently use large motors and require controlled acceleration and deceleration.

The 20G14TF460JN0NNNNN can be considered for large conveyor systems where motor speed must be adjusted according to production requirements.

The drive’s high current capacity is useful for large belt systems and other heavy material-handling equipment.

16.2 Cement Production

Cement production involves numerous large motor-driven machines.

Potential applications include:

• Large conveyors.
• Process fans.
• Crushers.
• Material-handling equipment.
• Large pumps.
• Raw-material systems.
• Processing machinery.

The PowerFlex 755 platform can provide centralized variable-speed control for these large motors.

16.3 Large Industrial Pumps

Large pumps often benefit from variable-speed operation.

The drive can adjust motor speed according to process demand, allowing the pumping system to operate more closely to the required flow and pressure conditions.

This can improve process control and, depending on the pump system, may reduce unnecessary energy consumption.

16.4 Large Fans and Blowers

Large fans are often used continuously in industrial plants.

Potential applications include:

• Furnace fans.
• Cooling fans.
• Dust-collection systems.
• Industrial ventilation.
• Mining ventilation.
• Cement-process fans.
• Combustion-air systems.

Variable-speed control can allow airflow to be adjusted without relying entirely on mechanical throttling.

16.5 Compressors

Large compressors can require controlled acceleration and stable speed regulation.

The 20G14TF460JN0NNNNN can be considered when the compressor motor falls within the drive’s applicable current and duty range.

16.6 Material Handling

Large material-handling equipment can benefit from controlled motor acceleration.

This can reduce mechanical shock on:

• Belts.
• Gearboxes.
• Couplings.
• Shafts.
• Bearings.
• Mechanical structures.

Typical applications include bulk-material conveyors, transfer systems, feeders, and large production lines.

16.7 Heavy Manufacturing

Large manufacturing equipment may require variable-speed operation to coordinate motor speed with other parts of a production process.

The PowerFlex 755 platform can be incorporated into PLC-based or network-based control architectures for such machinery.

17. Application Suitability

Application	Suitability	Main Reason
Large Mining Conveyor	Excellent	High current and controlled motor acceleration
Cement Conveyor	Excellent	Large motor capacity
Large Process Pump	Excellent	Variable-speed process control
Large Industrial Fan	Excellent	High continuous-power capability
Large Blower	Excellent	Stable high-power speed control
Compressor	Very Good	High-power motor control
Material Handling	Excellent	Controlled acceleration and speed
Heavy Manufacturing	Excellent	High-power variable-speed operation
Crusher	Very Good	Large motor capability
High-Inertia Equipment	Application-dependent	Braking requirements require evaluation
Regenerative Equipment	Application-dependent	External regenerative solution may be needed
Small Motor	Not Recommended	Excessive drive capacity

18. Recommended Same-Series Models

The following models are closely related to the 20G14TF460JN0NNNNN and are useful when selecting a different capacity within the same TF common-bus family.

Model	Voltage Class	Current Class	Light Duty	Normal Duty	Heavy Duty	Frame
20G14TF330JN0NNNNN	690 VAC / 932 VDC class	330 A	355 kW	315 kW	250 kW	Frame 8
20G14TF370JN0NNNNN	690 VAC / 932 VDC class	370 A	400 kW	355 kW	300 kW	Frame 8
20G14TF415JN0NNNNN	690 VAC / 932 VDC class	415 A	450 kW	400 kW	355 kW	Frame 8
20G14TF500JN0NNNNN	690 VAC / 932 VDC class	500 A	530 kW	500 kW	400 kW	Frame 8
20G14TF460AN0NNNNN	690 VAC / 932 VDC class	460 A	500 kW	450 kW	375 kW	Frame 8

The TF technical data establishes the progression from 330 A through 500 A for the single-unit Frame 8 common-bus configurations.

19. Same-Series Model Comparison

Model	Current Class	Normal Duty	Heavy Duty	Relative Application
20G14TF330JN0NNNNN	330 A	315 kW	250 kW	Lower high-power range
20G14TF370JN0NNNNN	370 A	355 kW	300 kW	Medium-high power
20G14TF415JN0NNNNN	415 A	400 kW	355 kW	High power
20G14TF460JN0NNNNN	460 A	450 kW	375 kW	Very high power
20G14TF500JN0NNNNN	500 A	500 kW	400 kW	Highest standard option in this group

The 20G14TF460JN0NNNNN is therefore positioned between the 415 A and 500 A configurations.

It is a particularly useful choice when the 415 A configuration does not provide enough current capacity, while the 500 A configuration would provide more capacity than the application actually requires.

20. Five Closely Related Models

20G14TF330JN0NNNNN

This model provides a lower current and power level while retaining the same general high-voltage TF common-bus architecture.

Its approximately 315 kW Normal Duty rating and 250 kW Heavy Duty rating make it suitable for smaller high-power motors.

20G14TF370JN0NNNNN

The 370 A version provides approximately 355 kW Normal Duty and 300 kW Heavy Duty capability.

It is a useful intermediate selection for applications that do not require the full capacity of the 415 A or 460 A versions.

20G14TF415JN0NNNNN

The 415 A model is one of the closest alternatives.

With approximately 400 kW Normal Duty and 355 kW Heavy Duty capability, it can be selected when the motor load is below the 460 A range.

20G14TF500JN0NNNNN

The 500 A version is the next major step upward.

It provides approximately 500 kW Normal Duty and 400 kW Heavy Duty capability and is appropriate when additional current capacity is required.

20G14TF460AN0NNNNN

The AN configuration shares the same basic 460 A TF power class but differs in its filtering/common-mode capacitor configuration.

The catalog coding distinguishes the J and A configurations by the common-mode capacitor jumper arrangement, so the complete suffix should be checked before treating the two configurations as interchangeable.

21. Five Representative Popular Allen-Bradley Models

The following models provide useful comparisons across the broader PowerFlex 755 platform.

They are not direct replacements for the 20G14TF460JN0NNNNN. Their voltage classes, input architectures, current ratings, and physical configurations differ.

Model	Product Series	Voltage Class	Current Class	General Configuration	Typical Application
20G11GD034AA0NNNNN	PowerFlex 755	480 VAC class	34 A	AC-input drive	Pumps, fans, conveyors
20G11GD052AA0NNNNN	PowerFlex 755	480 VAC class	52 A	AC-input drive	Industrial machinery
20G11GD077AA0NNNNN	PowerFlex 755	480 VAC class	77 A	AC-input drive	Medium/high-power machinery
20G14TE460JN0NNNNN	PowerFlex 755	600 VAC class	460 A	DC-input/precharge	Large industrial equipment
20GH1TC460JN0NNNNN	PowerFlex Extra Tough 755	High-power configuration	460 A class	Extra-tough industrial drive	Harsh industrial environments

The broader PowerFlex 755 range includes conventional AC-input, high-voltage DC-input, common-bus, and specialized environmental configurations, allowing the same general platform to cover substantially different industrial requirements.

22. Popular Model Comparison

Model	Voltage Class	Current Class	Main Strength	Typical Application
20G11GD034AA0NNNNN	480 VAC	34 A	Medium-power industrial control	Pumps, fans, conveyors
20G11GD052AA0NNNNN	480 VAC	52 A	Higher medium-power capacity	Industrial machinery
20G11GD077AA0NNNNN	480 VAC	77 A	Larger 480 VAC motor applications	Process equipment
20G14TE460JN0NNNNN	600 VAC	460 A class	Large high-voltage common-bus operation	Large industrial systems
20GH1TC460JN0NNNNN	High-power class	460 A class	More demanding environmental applications	Harsh industrial installations

These models should be selected according to the actual motor voltage, current, load profile, environmental requirements, and electrical architecture rather than simply according to the apparent power rating.

23. Dimensions and Weight Reference

Mechanical Parameter	20G14TF460JN0NNNNN
Frame	Frame 8
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Configuration-dependent
Mounting Footprint	Configuration-dependent
Installed Weight	Configuration-dependent kg
Shipping Weight	Configuration-dependent kg
Cabinet Space	Configuration-dependent
Cable Clearance	Configuration-dependent
Service Clearance	Configuration-dependent
Handling Arrangement	Frame 8 handling provisions recommended

For a large Frame 8 installation, it is preferable to use the final mechanical drawing associated with the exact build configuration for cabinet fabrication and installation planning.

Using a generic dimension or weight for every Frame 8 configuration can lead to incorrect cabinet calculations or transportation assumptions.

24. Installation Considerations

The 20G14TF460JN0NNNNN should be treated as part of a complete electrical and mechanical system.

The installation should provide adequate space for:

• Power wiring.
• DC-bus wiring.
• Motor connections.
• Grounding.
• Cooling airflow.
• Maintenance access.
• Control wiring.
• Network wiring.
• Isolation equipment.
• Mechanical handling.

The cabinet should also provide sufficient ventilation to prevent excessive heat accumulation.

Because this is a high-power drive, cable routing and separation between power and control wiring should be carefully planned.

The EMC filter configuration also makes grounding and cable-shielding practices important for maintaining satisfactory system performance.

25. Maintenance Considerations

The air-cooled construction means that cooling-system maintenance is an important part of long-term reliability.

A maintenance program should periodically inspect:

• Cooling fans.
• Air passages.
• Cabinet filters.
• Power terminals.
• Grounding connections.
• DC-bus components.
• Motor connections.
• Control wiring.
• Network connections.
• Fault history.
• Alarm history.
• Environmental contamination.

Dust is particularly important in mining, cement, aggregate, and bulk-material applications.

If dust accumulates in the airflow path, the drive may operate at higher temperatures and the cooling system may become less effective.

For this reason, maintenance intervals should be adjusted to the actual operating environment.

26. Energy-Saving Potential

A variable-frequency drive can provide substantial process-control benefits.

For centrifugal pumps and fans, reducing motor speed when full capacity is not required can reduce power consumption under appropriate operating conditions.

For conveyors, controlled acceleration can reduce mechanical shock.

For process equipment, variable-speed operation can allow production rates to be adjusted without continuously operating the motor at full speed.

For large industrial plants, these benefits can become significant when multiple high-power motors operate continuously.

27. Selection Guidelines

Selection Factor	Recommended Evaluation
Motor Voltage	Confirm compatibility with 690 VAC class
Motor Current	Compare with 460 A ND rating and applicable duty
Motor Power	Compare with 500/450/375 kW duty ratings
Load Type	Constant torque or variable torque
Starting Torque	Determine actual requirement
Overload	Determine magnitude and duration
Acceleration	Check required acceleration time
Deceleration	Evaluate regenerative energy
Motor Inertia	Evaluate high-inertia behavior
DC Bus	Confirm 932 VDC-class common-bus compatibility
Precharge	Verify system-level precharge arrangement
Cooling	Verify airflow and ambient conditions
Environment	Evaluate dust, humidity, vibration and temperature
Motor Cable	Evaluate length, shielding and EMC
Cabinet	Confirm Frame 8 space requirements
Network	Confirm EtherNet/IP and control architecture
Grounding	Verify complete electrical grounding
Maintenance	Provide sufficient service clearance

28. Why Choose the 460 A Configuration?

The 460 A model occupies an important position in the high-power TF family.

The 415 A configuration provides approximately 400 kW Normal Duty capability, while the 500 A configuration increases the Normal Duty rating to approximately 500 kW.

The 460 A model provides approximately 450 kW Normal Duty capability between these two levels.

This makes it attractive when a project needs more capacity than the 415 A model but does not require the full capacity of the 500 A model.

The same relationship applies to Heavy Duty operation.

The 460 A configuration provides approximately 375 kW Heavy Duty capacity, which is higher than the 355 kW Heavy Duty rating of the 415 A model.

For a large industrial application near the 450 kW Normal Duty range, this can make the 20G14TF460JN0NNNNN a very practical selection.

29. Motor Capacity Comparison

Approximate Normal Duty Requirement	Suggested Model	Normal Duty	Heavy Duty
Around 250 kW	20G14TF265JN0NNNNN	250 kW	200 kW
Around 315 kW	20G14TF330JN0NNNNN	315 kW	250 kW
Around 355 kW	20G14TF370JN0NNNNN	355 kW	300 kW
Around 400 kW	20G14TF415JN0NNNNN	400 kW	355 kW
Around 450 kW	20G14TF460JN0NNNNN	450 kW	375 kW
Around 500 kW	20G14TF500JN0NNNNN	500 kW	400 kW

The actual drive selection should always be based on motor current, duty class, overload requirements, and application characteristics rather than kW alone.

30. Main Advantages Summary

Feature	Benefit
460 A Current Class	Suitable for very large industrial motors
500 kW Light Duty	High-capacity variable-speed control
450 kW Normal Duty	Strong continuous industrial capability
375 kW Heavy Duty	Suitable for demanding loads
690 VAC Class	Appropriate for large industrial motor systems
932 VDC Nominal Class	Suitable for high-voltage common-bus architecture
DC Input	Designed for common-bus applications
Precharge	Controlled DC-bus energization
Frame 8	High-power physical platform
Forced-Air Cooling	Practical industrial thermal management
Filtered Configuration	Supports EMC-conscious installations
CM Jumper Installed	Specific common-mode configuration
Embedded EtherNet/IP	Networked industrial automation
No HIM	Suitable for centralized automation
No Dynamic Braking	Allows application-specific braking design
Broad Family	Multiple closely related power ratings

31. Overall Product Assessment

The Allen-Bradley 20G14TF460JN0NNNNN is a high-power PowerFlex 755 drive designed for demanding industrial motor-control applications.

Its combination of 460 A current capacity, 500 kW Light Duty capability, 450 kW Normal Duty capability, 375 kW Heavy Duty capability, 690 VAC class, 932 VDC nominal common-bus architecture, Frame 8 construction, forced-air cooling, filtering, precharge, and embedded EtherNet/IP makes it a strong choice for large industrial installations.

The drive is particularly well suited to large conveyors, mining equipment, cement machinery, pumps, fans, blowers, compressors, bulk-material handling systems, and heavy manufacturing equipment.

One of its biggest advantages is that it is not limited to simple standalone motor control.

The DC-input configuration allows it to become part of a larger common-bus power system, which can be useful when several large motors must operate together within one coordinated machine or production line.

The 460 A configuration also occupies a useful position in the TF family.

When the 415 A model is not large enough, the 460 A model provides an additional capacity step. When even more capacity is required, the 500 A model provides a further increase.

For applications with lower power requirements, the 370 A, 330 A, and 265 A configurations provide progressively smaller options within the same general family.

The most important selection factors remain the motor’s actual full-load current, operating voltage, duty classification, overload requirement, acceleration and deceleration profile, load inertia, DC-bus architecture, braking requirements, ambient environment, cabinet cooling, and mechanical installation space.

For a large motor application around the 450 kW Normal Duty range, the 20G14TF460JN0NNNNN is a particularly strong high-power configuration within the PowerFlex 755 family.

Quick Technical Summary

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750 Series
Product Series	PowerFlex 755
Model	20G14TF460JN0NNNNN
Product Type	PowerFlex 755 Air-Cooled AC Drive
Voltage Class	690 VAC
Current	460 A
Light Duty	500 kW
Normal Duty	450 kW
Heavy Duty	375 kW
Input	DC Input with Precharge
Nominal DC Bus	932 VDC
Frame	Frame 8
Cooling	Forced Air
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Network	Embedded EtherNet/IP
Enclosure	Open Type
Dimensions	Configuration-dependent
Weight	Configuration-dependent kg
Main Application	Large Industrial Motor Control