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Allen-Bradley 20G14TC460AN0NNNNN PowerFlex 755 AC Drive — Detailed Product Specifications, Applications, Advantages, and Related Models

1. Product Overview

The Allen-Bradley 20G14TC460AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for demanding industrial motor-control applications.

This model is part of the PowerFlex 755 series within the PowerFlex 750-Series family. It is intended for large three-phase motor systems where high current capacity, variable-speed control, industrial communication, and cabinet-level installation are required.

The drive has a 460 A Normal Duty output rating and supports approximately 250 kW Normal Duty operation. Its Heavy Duty rating is 385 A, corresponding to approximately 200 kW.

The model uses a 400 VAC three-phase input system and is configured for a DC input with precharge. It is an air-cooled, open-type drive designed for installation in an appropriate industrial cabinet or enclosure.

An important characteristic of this particular catalog number is the AN0 configuration. The drive has no dynamic braking transistor, and the filtering/common-mode jumper configuration differs from the corresponding JN0 version. The AN configuration is therefore worth distinguishing from 20G14TC460JN0NNNNN, even though the two models share the same fundamental voltage, current, power, frame, and braking characteristics.

The 20G14TC460AN0NNNNN is best viewed as a high-capacity industrial drive for large motors and large mechanical systems rather than as a compact machine-level inverter.

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2. Brand and Series

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Family Group	PowerFlex 750-Series
Product Type	AC Drive / Variable Frequency Drive
Drive Configuration	Air-Cooled PowerFlex 755
Input System	DC Input with Precharge
Voltage Class	400 VAC
Input Phase	Three Phase
Frame Size	Frame 8
Cooling Method	Air Cooled / Forced Air
Enclosure Type	Open Type
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded Ethernet/IP
Main Application	Industrial Motor Control

The PowerFlex 755 series is intended for industrial applications where the drive needs to do more than simply provide basic speed adjustment.

It is commonly selected for large motors, process machinery, conveyors, pumps, fans, material-handling equipment, and other industrial systems where the drive becomes part of a larger automation architecture.

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3. Complete Product Parameters

Parameter	Specification
Model / Part Number	20G14TC460AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	AC Drive
Input Voltage	400 VAC class
Input Phase	3 Phase
DC Bus Input	Approximately 540 VDC nominal class
Input Type	DC Input with Precharge
Normal Duty Current	460 A
Normal Duty Power	250 kW
Heavy Duty Current	385 A
Heavy Duty Power	200 kW
Light Duty Current	Approximately 540 A
Light Duty Power	Approximately 315 kW
Output Frequency	Up to approximately 0–400 Hz, application dependent
Cooling	Forced Air / Air Cooled
Frame	Frame 8
Enclosure	Open Type
Protection Class	IP00/IP20 open-type configuration
Dynamic Braking	None
Internal DB Transistor	No
Internal Braking Resistor	No
Filtering Configuration	Filtered configuration removed in AN arrangement
CM Jumper	Removed in AN arrangement
HIM	Blank / No HIM
Communication	Embedded Ethernet/IP
Control	Industrial variable-speed motor control
Operating Temperature	Approximately 0–50 °C for the standard PowerFlex 755 air-cooled configuration
Storage Temperature	Approximately -40 to +70 °C
Approx. Drive Dimensions	Frame 8 open-frame assembly; approximately 2145 × 778 × 421 mm for the major open-frame assembly envelope
Weight	Approximately 162 kg class for the Frame 8 open-frame assembly
Installation	Cabinet / floor-mounted open-frame installation
Typical Motor Range	Up to approximately 250 kW Normal Duty
Main Applications	Pumps, fans, conveyors, process machinery, material handling, large industrial motors

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4. Electrical Rating

The defining electrical characteristic of the 20G14TC460AN0NNNNN is its 460 A Normal Duty rating.

Under Normal Duty operation, the drive is rated for approximately 250 kW.

Under Heavy Duty conditions, the drive provides approximately 385 A and 200 kW.

The drive also has a Light Duty capability of approximately 540 A / 315 kW, depending on the applicable application and rating conditions.

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

These three rating categories are useful because not every motor application places the same demands on the drive.

A large fan or pump operating with relatively predictable loading may be evaluated differently from a conveyor, crusher, mixer, or other machine with high starting torque and repeated overload conditions.

For practical drive selection, the motor nameplate current and actual duty cycle should always be considered alongside the nominal motor kW.

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5. 400 VAC Three-Phase Configuration

The 20G14TC460AN0NNNNN is designed around a 400 VAC three-phase system.

This makes it substantially different from the 690 VAC PowerFlex 755 models in the NF family.

The TC configuration belongs to the high-power 400 VAC / common-DC-input class of the PowerFlex 755 architecture.

The nominal DC input class is approximately 540 VDC, with an applicable DC input range around the 486–594 VDC region for this configuration.

Electrical Parameter	Specification
AC System Class	400 VAC
Input Phase	Three Phase
Nominal DC Input	Approximately 540 VDC
Typical DC Input Range	Approximately 486–594 VDC
Normal Duty Current	460 A
Normal Duty Power	250 kW
Heavy Duty Current	385 A
Heavy Duty Power	200 kW
Light Duty Current	Approximately 540 A
Light Duty Power	Approximately 315 kW

This type of architecture is particularly useful in systems where a common DC bus or DC input arrangement is part of the overall power distribution strategy.

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6. Product Introduction

The 20G14TC460AN0NNNNN is a large industrial variable-frequency drive designed to control the speed and torque of high-power AC motors.

Instead of allowing the motor to operate only at the fixed frequency of the electrical supply, the drive generates a controlled output that allows motor speed to be adjusted.

This gives the machine designer considerably more control over the mechanical process.

For a large pump, for example, the motor does not necessarily need to run at full speed throughout the entire production cycle.

For a conveyor, the drive can provide controlled acceleration and deceleration rather than applying the full mechanical shock of a direct-on-line start.

For a fan or blower, the operating speed can be adjusted according to airflow requirements.

For process equipment, motor speed can become an active process-control variable.

The 20G14TC460AN0NNNNN is therefore best suited to installations where the motor is an important part of a larger industrial control system.

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7. High-Power Architecture

At 460 A Normal Duty, this is a substantial industrial drive.

The physical and electrical requirements are considerably different from those of compact drives used in small machines.

A Frame 8 PowerFlex 755 installation requires careful consideration of:

• Cabinet structure.
• Floor or panel support.
• Power cable routing.
• DC bus connections.
• Motor output connections.
• Grounding.
• Cooling airflow.
• Heat dissipation.
• Service access.
• Protection equipment.
• Communication wiring.
• Cabinet ventilation.

The drive should therefore be treated as part of a complete power-control system rather than as an isolated component.

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8. AN0 Configuration

The AN0 portion of the catalog number is important when comparing this model with similar PowerFlex 755 versions.

The filtering and common-mode capacitor jumper configuration differs between the A and J variants.

The A configuration corresponds to the filtering/common-mode jumper arrangement being removed, while the J configuration represents the installed arrangement.

The N position identifies the absence of the internal dynamic braking transistor.

The 0 position represents the blank/no-HIM configuration.

Configuration	Meaning
A	Filter/common-mode jumper removed configuration
N	No internal dynamic braking transistor
0	Blank / No HIM
NNNNN	No additional options represented in these positions

This makes the exact catalog number important during replacement and system matching.

A drive with the same current rating but a different suffix configuration should not automatically be considered a direct electrical or mechanical replacement without checking the complete system requirements.

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9. Dynamic Braking

The 20G14TC460AN0NNNNN does not include an internal dynamic braking transistor.

This is an important selection point.

During motor deceleration, a high-inertia motor can return energy toward the drive’s DC bus.

If this regenerated energy causes the DC bus voltage to rise beyond acceptable limits, an appropriate braking or regenerative-energy management method may be necessary.

The absence of an internal DB transistor is generally less significant in applications with:

• Slow deceleration.
• Low-inertia loads.
• Predominantly motoring operation.
• Long stopping times.
• Pump applications with controlled stopping.

It becomes much more important in applications involving:

• Rapid stopping.
• Large flywheels.
• High-inertia machinery.
• Hoists.
• Cranes.
• Vertical loads.
• Frequent acceleration/deceleration.
• Regenerative loads.
• Centrifuges.
• High-speed rotating machinery.

In those cases, the braking strategy should be designed separately rather than assuming that the drive itself will automatically absorb all regenerated energy.

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10. Comparison With the JN0 Version

One of the closest configuration comparisons is the 20G14TC460JN0NNNNN.

Both models have the same basic 460 A Normal Duty rating and 250 kW Normal Duty rating.

The main distinction is the filtering/common-mode jumper configuration.

Parameter	20G14TC460AN0NNNNN	20G14TC460JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
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	Approx. 540 A / 315 kW	Approx. 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 / CM Configuration	Removed	Installed
HIM	Blank / No HIM	Blank / No HIM
Dimensions	Frame 8 open-frame assembly	Frame 8 open-frame assembly
Weight	Approx. 162 kg class	Approx. 162 kg class

This comparison is particularly useful when replacing an older unit.

The electrical rating alone does not tell the complete story. The filtering and common-mode configuration can matter to the electrical environment and should therefore be preserved or deliberately changed according to the system design.

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11. Mechanical Specifications

The drive uses a Frame 8 architecture.

Unlike smaller PowerFlex 755 units, Frame 8 is a floor-mounted/open-frame style assembly that requires more substantial installation infrastructure.

Mechanical Parameter	Specification
Model / Part Number	20G14TC460AN0NNNNN
Frame Size	Frame 8
Construction	Open Type
Cooling	Forced Air
Approx. Assembly Height	2145 mm
Approx. Assembly Width	778 mm
Approx. Assembly Depth	421 mm
Approx. Dimensions	2145 × 778 × 421 mm
Approx. Weight	162 kg
Mounting	Floor / cabinet integration
Cabinet Type	Suitable industrial enclosure
Service Access	Required
Ventilation	Required
Power Wiring Access	Required
Lifting/Handling	Mechanical handling equipment may be required

The Frame 8 drive is substantially larger and heavier than Frame 6 and Frame 7 PowerFlex 755 units.

For cabinet engineering, the drive’s working envelope should be considered rather than using only the nominal electronic assembly dimensions.

Additional space may be required for mounting kits, termination kits, cable bending radius, ventilation ducting, control equipment, protection equipment, and service access.

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12. Cabinet and Floor-Mount Installation

The Frame 8 design is intended for serious industrial installations.

The cabinet or enclosure must be capable of supporting the drive mechanically and thermally.

The drive assembly is large enough that installation planning should normally include mechanical handling considerations.

Important cabinet-design factors include:

• Structural strength.
• Floor loading.
• Drive support rails.
• Mounting hardware.
• Power terminal accessibility.
• Cooling airflow.
• Exhaust airflow.
• Cable routing.
• Grounding.
• Maintenance access.
• Separation between power and control wiring.
• Clearance from cabinet walls.
• Heat dissipation.

For large Frame 8 installations, a roll-out or handling system may also be useful during installation and maintenance.

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13. Cooling and Thermal Management

A 250 kW-class drive produces a significant amount of heat.

The forced-air cooling system must therefore have a reliable airflow path.

A poorly designed cabinet can create an internal temperature significantly higher than the surrounding room temperature.

The cooling design should take into account:

• Ambient temperature.
• Internal cabinet temperature.
• Drive heat loss.
• Airflow volume.
• Airflow direction.
• Fan performance.
• Filter condition.
• Exhaust arrangement.
• Adjacent equipment.
• Cabinet construction.
• Installation altitude.
• Dust accumulation.

Regular inspection of fans and airflow paths is especially important in large industrial installations.

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14. Environmental Characteristics

The PowerFlex 755 platform is designed for industrial environments, but installation conditions still need to be controlled.

Typical operating conditions for the standard PowerFlex 755 air-cooled architecture are around 0–50 °C, while certain detailed product configurations can have broader allowable ranges under specific conditions.

Storage temperature can be approximately -40 to +70 °C.

Environmental Parameter	Typical Specification
Model / Part Number	20G14TC460AN0NNNNN
Typical Operating Temperature	Approximately 0–50 °C
Storage Temperature	Approximately -40 to +70 °C
Cooling	Forced Air
Installation Environment	Industrial
Humidity	Non-condensing environment recommended
Condensation	Avoid
Airflow	Required
Dust Control	Recommended
Cabinet Ventilation	Required

Actual environmental limits should be checked against the applicable installation configuration, especially for unusual ambient conditions.

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15. Embedded Ethernet/IP

The PowerFlex 755 architecture provides embedded Ethernet/IP communication.

This is useful for integrating the drive into a modern industrial automation network.

A typical system can include:

• PLC.
• HMI.
• Ethernet switch.
• PowerFlex drive.
• Motor.
• Sensors.
• Process instrumentation.
• Safety devices.

The drive can therefore provide motor-control information to the larger automation system.

Depending on the control architecture, information such as speed reference, actual speed, current, drive status, fault status, alarms, and other operating data can be exchanged through the industrial network.

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16. Main Application: Pumps

Large pumps are one of the most natural applications for a high-power drive.

The motor can be operated at a speed appropriate to the required process flow instead of being forced to operate at full speed continuously.

Typical applications include:

• Water treatment.
• Industrial water circulation.
• Cooling-water systems.
• Process pumping.
• Large pipeline systems.
• Mining pumps.
• Utility pumping.
• Chemical process systems.

The drive’s 250 kW Normal Duty rating provides substantial capacity for large pump motors.

For variable-torque pump systems, variable-speed operation can also provide an opportunity for meaningful energy savings, depending on the actual operating profile.

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17. Main Application: Fans and Blowers

Large fans and blowers frequently operate under changing airflow requirements.

A variable-speed drive can allow the motor speed to follow the process requirement.

Potential applications include:

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

The main advantage is that the motor no longer needs to operate continuously at full speed when the process does not require maximum airflow.

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18. Main Application: Conveyors

Large conveyors can place substantial demands on motors.

The 20G14TC460AN0NNNNN can be considered for conveyor systems where motor power is within the applicable drive rating.

Benefits include:

• Controlled starting.
• Controlled acceleration.
• Adjustable conveyor speed.
• Controlled stopping.
• Better coordination with production equipment.
• Reduced mechanical shock compared with direct starting.

For long conveyors, however, mechanical loading and braking requirements should be evaluated carefully.

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19. Main Application: Mining

The high-power characteristics of the PowerFlex 755 make this type of drive suitable for many mining and mineral-processing applications.

Potential equipment includes:

• Conveyors.
• Crushers.
• Pumps.
• Fans.
• Feed systems.
• Material-handling machinery.

Mining environments can be harsh, so the drive cabinet should provide suitable environmental protection.

Dust management, cooling, cable protection, grounding, and maintenance access are particularly important.

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20. Main Application: Material Handling

Large material-handling systems often require precise speed control.

The drive can be used for:

• Bulk material conveyors.
• Transfer systems.
• Feeders.
• Industrial handling systems.
• Large rotating equipment.
• Production-line material movement.

The ability to communicate with an industrial control network is particularly useful where multiple drives need to be coordinated.

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21. Main Application: Process Machinery

Large industrial process machines can use variable-speed control to maintain a desired process condition.

Examples include:

• Mixers.
• Agitators.
• Large compressors.
• Process fans.
• Large rotating machines.
• Industrial processing equipment.
• Production-line equipment.

For each application, motor current and duty cycle should be checked rather than selecting the drive only according to the nominal kW rating.

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22. Main Product Advantages

High Power Density for Industrial Applications

The 460 A Normal Duty capability allows the drive to control large motors without requiring multiple smaller drives in many applications.

This can simplify the architecture of large motor systems.

250 kW Normal Duty Rating

The 250 kW Normal Duty rating provides substantial capacity for large industrial machines.

200 kW Heavy Duty Rating

The 200 kW Heavy Duty rating gives the drive useful capability for applications with more demanding load conditions.

315 kW Light Duty Capability

The approximate 315 kW Light Duty rating provides additional flexibility for appropriate applications.

This is particularly relevant when the mechanical load does not require the same overload capability associated with Heavy Duty operation.

Embedded Ethernet/IP

The embedded Ethernet/IP interface makes the drive easier to integrate into networked automation systems.

PowerFlex 755 Platform

The PowerFlex 755 platform is designed for sophisticated industrial drive applications and provides a common architecture for larger machinery.

Air-Cooled Design

Forced-air cooling is a practical approach for high-power industrial drives.

Open-Type Architecture

The open-frame design allows the drive to be integrated into a larger cabinet designed around the complete machine.

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23. Advantages for System Integrators

For system integrators, the main benefit is flexibility.

The drive can be incorporated into a larger electrical cabinet together with:

• Main disconnects.
• Circuit protection.
• Control power.
• PLC systems.
• Ethernet switches.
• I/O.
• Safety equipment.
• Motor connections.
• Auxiliary cooling.

This makes it suitable for large engineered systems rather than only standardized compact machines.

The common-DC-input architecture can also be useful when multiple drives are part of a coordinated DC-bus system.

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24. Advantages for Machine Builders

For machine builders, a large PowerFlex 755 provides a practical platform for high-power motor control.

It can support machines requiring:

• High motor power.
• Variable speed.
• Controlled acceleration.
• Controlled deceleration.
• Ethernet communication.
• Process control.
• Large motor current.
• Industrial cabinet integration.

The PowerFlex 755 family also provides a range of related ratings, allowing a machine builder to select a different drive size when the motor power changes.

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25. Advantages for End Users

For the end user, the most visible advantage is improved motor control.

A large motor can be started, accelerated, operated, and stopped in a controlled manner.

This can reduce unnecessary mechanical stress and improve process flexibility.

Potential benefits include:

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

Actual energy savings depend on the application and operating profile.

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26. Five Same-Series Recommended Models

The following models are closely related PowerFlex 755 models in the same TC high-power family.

Model / Part Number	Voltage	Light Duty	Normal Duty	Heavy Duty	Frame	Braking	Dimensions	Weight
20G14TC460AN0NNNNN	400 VAC / 540 VDC class	540 A / 315 kW	460 A / 250 kW	385 A / 200 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC540AN0NNNNN	400 VAC / 540 VDC class	585 A / 315 kW	540 A / 315 kW	456 A / 250 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC567AN0NNNNN	400 VAC / 540 VDC class	612 A / 355 kW	567 A / 315 kW	472 A / 250 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC650AN0NNNNN	400 VAC / 540 VDC class	750 A / 400 kW	650 A / 355 kW	540 A / 315 kW	8	None	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC750AN0NNNNN	400 VAC / 540 VDC class	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 particularly useful when the motor power requirement is above the 250 kW level.

The current increases progressively from 460 A to 750 A, while the general Frame 8 mechanical platform remains applicable for the single-drive configuration.

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27. Five Related Models With JN0 Configuration

The corresponding JN0 versions are useful when the installed filtering/common-mode jumper configuration is required.

Model / Part Number	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty 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

The JN0 models are especially relevant when the electrical installation requires the corresponding filter and common-mode jumper arrangement.

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28. Five Same-Brand Popular Models

The following models provide a broader comparison with other popular Allen-Bradley variable-speed drive selections.

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 machine control	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	Machine control	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 cover a much wider range of motor sizes.

The PowerFlex 525 selections are generally better suited to smaller and medium-sized machines.

The PowerFlex 755 selections are more appropriate when the application requires higher power, larger motors, more advanced control, or a larger industrial automation architecture.

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29. Power Selection Comparison

Model / Part Number	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame	Dimensions	Weight
20G14TC460AN0NNNNN	460 A	250 kW	385 A	200 kW	8	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC540AN0NNNNN	540 A	315 kW	456 A	250 kW	8	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC567AN0NNNNN	567 A	315 kW	472 A	250 kW	8	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC650AN0NNNNN	650 A	355 kW	540 A	315 kW	8	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC750AN0NNNNN	750 A	400 kW	585 A	315 kW	8	Approx. 2145 × 778 × 421 mm	Approx. 162 kg

This table gives a useful view of where the 460 A model sits within the high-power TC family.

The 20G14TC460AN0NNNNN is the starting point of this particular high-power group and provides 250 kW Normal Duty capacity.

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30. Motor Selection Considerations

Motor selection should always begin with the actual motor nameplate.

Important information includes:

Motor Parameter	Selection Importance
Rated Voltage	Must match the drive/motor system
Full-Load Current	One of the most important sizing values
Rated Power	Used together with current and duty
Frequency	Important for speed range
Base Speed	Determines normal operating range
Starting Torque	Important for Heavy Duty loads
Service Factor	Helps evaluate loading
Motor Type	Affects control strategy
Load Inertia	Important for acceleration/deceleration
Regenerative Behavior	Important for braking design

A 250 kW motor does not necessarily have the same current requirement under every application condition.

Motor efficiency, power factor, voltage, operating point, and motor design all affect current.

Therefore, the 460 A rating should be compared with the actual motor current rather than using the 250 kW number alone.

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31. Application Duty Selection

The correct duty rating is another important consideration.

Application	Typical Evaluation
Large centrifugal pump	Normal Duty often suitable
Large fan	Normal Duty often suitable
Industrial blower	Normal Duty or Light Duty depending on load
Conveyor	Heavy Duty evaluation recommended
Crusher	Heavy Duty evaluation important
Mixer	Heavy Duty evaluation may be required
Hoist	Heavy Duty and braking evaluation required
Crane	Heavy Duty and braking evaluation required
Centrifuge	Acceleration/deceleration evaluation required
High-inertia machine	Braking and thermal evaluation required

This does not mean that every pump should automatically use Normal Duty or every conveyor should automatically use Heavy Duty.

The actual mechanical load and operating cycle must be evaluated.

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32. Common DC Input Applications

The TC configuration is particularly relevant to systems using a common DC input architecture.

A common DC bus can allow several drives or inverter sections to share DC power infrastructure.

This can be useful in systems with:

• Multiple motors.
• Coordinated drives.
• Shared DC power.
• Regenerative energy sharing.
• Large production lines.
• Multi-axis industrial machinery.
• Centralized DC bus systems.

In these systems, power distribution and regeneration should be engineered as a complete system.

The 20G14TC460AN0NNNNN can then serve as one high-power motor inverter within that larger architecture.

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33. Advantages of the Open-Type Design

The open-type construction provides flexibility for system builders.

Instead of requiring the drive itself to contain a complete environmental enclosure, the integrator can design an enclosure around the complete electrical system.

This allows the cabinet to include:

• Power distribution.
• Circuit protection.
• PLC equipment.
• Communication devices.
• Safety systems.
• Cooling equipment.
• Motor terminals.
• Auxiliary controls.

For large industrial equipment, this approach can make the final system easier to standardize.

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34. Maintenance Recommendations

High-power air-cooled drives should receive regular inspection.

The cooling fans are particularly important.

Maintenance personnel should inspect:

• Fan operation.
• Airflow.
• Ventilation paths.
• Dust accumulation.
• Power connections.
• Grounding.
• Control wiring.
• Ethernet connections.
• Cabinet temperature.
• Fault history.
• Signs of overheating.
• Mechanical mounting.
• Cable terminations.

A blocked airflow path can cause the drive’s internal temperature to rise significantly.

For this reason, keeping the cabinet and cooling system clean is one of the simplest but most important maintenance tasks.

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35. Replacement Considerations

When replacing an existing PowerFlex 755, the complete catalog number should be compared.

Do not compare only:

• Voltage.
• Current.
• kW.

The following should also be checked:

• Input configuration.
• DC bus requirements.
• Frame.
• Filtering.
• Common-mode jumper.
• Dynamic braking.
• HIM configuration.
• Communication.
• Enclosure.
• Cooling.
• Cabinet dimensions.

A drive with the same 460 A rating may still have a different electrical configuration.

The 20G14TC460AN0NNNNN should therefore be replaced with an equivalent configuration only after checking the complete system requirements.

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36. Catalog Number Interpretation

The catalog number can be understood as a series of configuration fields.

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

This breakdown is useful when comparing similar catalog numbers.

For example, changing the current field from 460 to 540 changes the drive’s current and power capability, while changing A to J changes the filter/common-mode jumper configuration.

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37. Why Choose 20G14TC460AN0NNNNN?

The 20G14TC460AN0NNNNN is a good candidate when the application requires:

• 400 VAC three-phase power architecture.
• DC input with precharge.
• Approximately 540 VDC nominal DC input.
• 460 A Normal Duty output.
• 250 kW Normal Duty power.
• 385 A Heavy Duty capability.
• 200 kW Heavy Duty power.
• Approximately 315 kW Light Duty capability.
• Frame 8 construction.
• Air-cooled operation.
• Embedded Ethernet/IP.
• Open-type cabinet integration.
• No internal dynamic braking transistor.
• High-power industrial motor control.

The model is especially attractive when the system already uses a common DC bus or requires a large industrial inverter within a DC power architecture.

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38. Situations Where Another Model May Be Better

The 20G14TC460AN0NNNNN is not necessarily the best choice for every high-power application.

A smaller PowerFlex model may be more economical if the motor current is substantially below 460 A.

A higher-current TC model may be more suitable when the motor approaches or exceeds the 460 A operating range.

A JN0 version may be preferable when the filtering/common-mode jumper configuration needs to be installed.

A drive with an appropriate braking configuration may be preferable when the application generates significant regenerative energy.

A different PowerFlex family may be more suitable for smaller machines where the Frame 8 installation would be unnecessarily large.

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39. Five Recommended Related Models by Application

Model / Part Number	Normal Duty	Heavy Duty	Frame	Main Selection Reason	Dimensions	Weight
20G14TC460JN0NNNNN	460 A / 250 kW	385 A / 200 kW	8	Same rating with J configuration	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC540AN0NNNNN	540 A / 315 kW	456 A / 250 kW	8	Higher current capacity	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC567AN0NNNNN	567 A / 315 kW	472 A / 250 kW	8	Higher current with similar power class	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC650AN0NNNNN	650 A / 355 kW	540 A / 315 kW	8	Higher-power application	Approx. 2145 × 778 × 421 mm	Approx. 162 kg
20G14TC750AN0NNNNN	750 A / 400 kW	585 A / 315 kW	8	Very high-power motor control	Approx. 2145 × 778 × 421 mm	Approx. 162 kg

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40. Five Popular Same-Brand Models for Comparison

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

These alternatives are useful when the required motor power is much lower than the 250 kW range.

The PowerFlex 525 models are more compact and generally more appropriate for machine-level applications.

The smaller PowerFlex 755 models provide a step toward higher-performance industrial applications.

The 20G14TC460AN0NNNNN is intended for a substantially higher power level and requires much more installation space.

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41. Product Advantages in Practical Terms

The strongest advantage of the 20G14TC460AN0NNNNN is its combination of high current capability and flexible industrial integration.

The 460 A Normal Duty rating provides enough capacity for large motors.

The 250 kW Normal Duty rating makes it appropriate for major industrial machinery.

The 385 A / 200 kW Heavy Duty rating gives the drive substantial capability for demanding applications.

The approximately 540 A / 315 kW Light Duty capability provides additional flexibility for suitable loads.

The PowerFlex 755 architecture makes the drive suitable for more sophisticated industrial control systems.

The embedded Ethernet/IP interface simplifies integration into networked automation.

The open Frame 8 construction allows the drive to be incorporated into large cabinets or MCC-style systems.

The DC input with precharge makes it particularly relevant to common-DC-bus architectures.

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42. Recommended Applications

The model is particularly suitable for the following categories:

Large Pumping Systems

The drive can provide adjustable motor speed and controlled acceleration for large pumps.

Large Fans

The drive can adjust fan speed according to process demand and provide smoother motor control.

Conveyors

The drive can provide controlled acceleration, speed regulation, and stopping for large conveyor systems.

Mining Equipment

Its high current and power ratings make it suitable for large mining and material-handling machinery when the environmental installation is properly engineered.

Process Machinery

Large mixers, agitators, process fans, and other rotating equipment can benefit from adjustable-speed operation.

Industrial Material Handling

Large material-handling systems can use networked drive control to coordinate motor operation.

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43. Final Technical Summary

Parameter	20G14TC460AN0NNNNN
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
Nominal DC Input	Approximately 540 VDC
DC Input Range	Approximately 486–594 VDC
Input Configuration	DC Input with Precharge
Light Duty	Approx. 540 A / 315 kW
Normal Duty	460 A / 250 kW
Heavy Duty	385 A / 200 kW
Frame	Frame 8
Cooling	Forced Air
Enclosure	Open Type
Protection	IP00/IP20 open-type configuration
Dynamic Braking	None
DB Transistor	Not Included
Braking Resistor	Not Included
Filtering Configuration	A configuration / removed
CM Jumper	Removed
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-mounted open-frame system
Main Applications	Pumps, fans, conveyors, mining, process machinery, material handling
Main Advantage	High-power 400 VAC/DC-bus motor control
Main Selection Point	460 A ND / 250 kW ND with no internal DB transistor

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44. Final Product Assessment

The Allen-Bradley 20G14TC460AN0NNNNN is a high-power PowerFlex 755 drive designed for large industrial motor-control systems.

Its key electrical ratings are 460 A Normal Duty / 250 kW, 385 A Heavy Duty / 200 kW, and approximately 540 A Light Duty / 315 kW.

The drive is designed around a 400 VAC three-phase system with a nominal 540 VDC common-DC-input architecture and uses a DC input with precharge.

The Frame 8 construction reflects its high-power application range. With an approximate open-frame assembly envelope of 2145 × 778 × 421 mm and a weight in the 162 kg class, this is equipment that needs proper cabinet engineering, mechanical support, ventilation, and service access.

Its embedded Ethernet/IP capability is another major advantage, particularly for industrial systems where the drive needs to exchange operating information with a PLC, HMI, or larger automation network.

The most important configuration detail is the AN0 arrangement. The model does not include an internal dynamic braking transistor, and its filtering/common-mode jumper arrangement differs from the JN0 configuration.

For systems that do not require an internal dynamic braking transistor and that use a compatible 400 VAC/DC-bus architecture, this model provides a strong high-power motor-control solution.

The closest alternatives are the 20G14TC460JN0NNNNN for a different filtering/common-mode configuration and the higher-capacity 20G14TC540, 20G14TC567, 20G14TC650, and 20G14TC750 models for larger motor requirements.

For applications involving large pumps, fans, conveyors, mining machinery, process equipment, and heavy material handling, the 20G14TC460AN0NNNNN offers the combination of current capacity, high-power operation, industrial communication, and system-level flexibility expected from a large PowerFlex 755 installation.