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Allen-Bradley 20G14TF330AN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G14TF330AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for industrial motor-control applications that require reliable variable-speed operation, strong overload capability, flexible control functions, and integration with larger automation systems.

It belongs to the PowerFlex 750 Series and specifically to the PowerFlex 755 product family.

The 20G14TF330AN0NNNNN is an air-cooled, open-type, three-phase AC drive with a 480 VAC input, AC input with precharge, and a 330 A normal-duty output-current rating. It uses Frame 6 construction and is configured with filtering and a common-mode capacitor jumper installed.

The drive is intended for larger industrial motors and machinery rather than small machine applications. Its combination of high current capacity, industrial construction, advanced motor-control functions, and network integration makes it suitable for conveyors, pumps, fans, compressors, process equipment, material-handling systems, and other demanding machinery.

The catalog number is:

20G14TF330AN0NNNNN

The configuration identifies an air-cooled PowerFlex 755 AC drive with AC input, precharge, filtered configuration, dynamic-braking capability, and a blank/no-HIM configuration.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750 Series
Product Series	PowerFlex 755
Product Type	AC Drive / Variable Frequency Drive
Catalog Number	20G14TF330AN0NNNNN
Drive Type	PowerFlex 755 AC Drive
Cooling Method	Air Cooled
Input Type	AC Input with Precharge
Input Voltage	480 VAC
Phase	Three Phase
Normal-Duty Current	330 A
Normal-Duty Power	250 HP
Heavy-Duty Power	200 HP
Frame Size	Frame 6
Enclosure Type	Open Type
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	DB Transistor
HIM	Blank / No HIM
Communication Platform	PowerFlex 755 industrial communication architecture
Dimensions	Configuration-dependent
Net Weight	Configuration-dependent kg

The key distinction for this model is that the AN configuration is an AC-input configuration, while other closely related catalog numbers using different configuration characters can represent different input arrangements.

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3. Detailed Technical Parameters

Parameter	Specification
Model	20G14TF330AN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750 Series
Product Series	PowerFlex 755
Product Type	Variable Frequency AC Drive
Input Voltage	480 VAC
Input Phase	Three Phase
Input Configuration	AC Input with Precharge
Normal-Duty Output Current	330 A
Normal-Duty Power Rating	250 HP
Approx. Normal-Duty Power	Approx. 186 kW
Heavy-Duty Power Rating	200 HP
Approx. Heavy-Duty Power	Approx. 149 kW
Frame Size	Frame 6
Cooling	Air Cooled
Cooling Method	Forced Air
Enclosure	Open Type
Filtering	Filtered
Common-Mode Jumper	Installed
Dynamic Braking	DB Transistor
Human Interface Module	Blank / No HIM
Motor-Control Platform	PowerFlex 755
Typical Motor Voltage Class	480 VAC class
Motor Application	Three-phase industrial motors
Communication	Industrial network integration capability
Mounting	Cabinet / industrial enclosure
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Configuration-dependent
Net Weight	Configuration-dependent kg
Shipping Weight	Configuration-dependent kg
Installation Environment	Industrial
Main Application Level	Medium-to-high power industrial motor control

The published catalog information identifies this exact configuration as a 480 VAC, three-phase, 330 A normal-duty, 250 HP normal-duty, 200 HP heavy-duty, Frame 6, air-cooled PowerFlex 755 drive.

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4. Product Identification

The 20G14TF330AN0NNNNN is best understood as a high-capacity member of the PowerFlex 755 family.

Its main characteristics are:

• PowerFlex 755 architecture.
• 480 VAC three-phase input.
• AC input with precharge.
• 330 A normal-duty current.
• 250 HP normal-duty rating.
• 200 HP heavy-duty rating.
• Frame 6 mechanical construction.
• Air-cooled design.
• Open-type construction.
• Filtered configuration.
• CM jumper installed.
• Dynamic-braking transistor configuration.
• Blank/no-HIM arrangement.

This combination makes the drive appropriate for industrial equipment where a standard small VFD is not sufficient.

The model is especially suitable for machinery where the motor must operate at variable speed and where acceleration, deceleration, torque response, diagnostics, and integration with an automation system are important.

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5. Product Introduction

The PowerFlex 755 series is a high-performance industrial AC-drive platform designed for applications that demand more flexibility than a basic variable-frequency drive.

The 20G14TF330AN0NNNNN is positioned toward the higher-power portion of this family.

With a 330 A normal-duty rating, it is capable of controlling substantially larger motors than compact and mid-range drives.

Its 480 VAC three-phase architecture makes it suitable for common industrial power-distribution systems used in manufacturing plants, processing facilities, material-handling installations, utilities, and other large industrial environments.

The Frame 6 mechanical platform provides a larger physical structure capable of accommodating the electrical components, thermal-management system, power connections, and control architecture required by a high-current industrial drive.

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6. AC Input with Precharge

One of the defining characteristics of the 20G14TF330AN0NNNNN is its AC Input with Precharge configuration.

The precharge circuit helps manage the initial charging of the drive’s DC-link capacitors when the drive is energized.

This is especially important for high-power drives because the internal DC bus contains substantial stored electrical energy and would otherwise create a very high initial charging current.

The precharge arrangement helps control this initial electrical event and provides a more suitable startup sequence for the drive’s power electronics.

For industrial systems, this contributes to a more controlled energization process and supports the reliable operation of the drive’s internal power-conversion stage.

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7. 480 VAC Three-Phase Operation

The drive is designed for a 480 VAC, three-phase input system.

480 VAC is one of the most widely used industrial voltage classes for large motors and motor-control systems.

A 480 VAC-class drive can be used in many industrial environments where three-phase distribution is already available.

Typical applications include:

• Manufacturing machinery.
• Conveyors.
• Pumps.
• Fans.
• Blowers.
• Compressors.
• Process machinery.
• Material-handling systems.
• Industrial production equipment.

The three-phase design is particularly appropriate for high-power industrial motors because three-phase power provides efficient motor operation and is standard throughout large industrial facilities.

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8. 330 A Normal-Duty Rating

The 330 A normal-duty rating is one of the most important characteristics of this model.

A 330 A drive is intended for substantially larger motor systems than smaller PowerFlex drives.

The normal-duty rating corresponds to a published 250 HP power class.

This places the drive in the high-capacity industrial category.

The actual motor selected for an installation should always be checked against its nameplate current rather than relying on horsepower alone.

Motor current can vary according to:

• Motor efficiency.
• Power factor.
• Motor design.
• Motor voltage.
• Operating conditions.
• Temperature.
• Application duty.
• Starting requirements.

For this reason, the 330 A current rating is generally more useful for final drive selection than horsepower alone.

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9. Heavy-Duty Capability

The drive is also associated with a 200 HP heavy-duty rating.

Heavy-duty applications typically involve greater torque requirements, more frequent overload conditions, more aggressive acceleration, or higher mechanical stress.

Examples can include:

• Heavy conveyors.
• Crushers.
• Mixers.
• Material-processing equipment.
• High-inertia machinery.
• Industrial production machinery.
• Certain compressor applications.
• Machinery with frequent acceleration and deceleration.

When a motor operates under a severe load profile, the heavy-duty rating should be used for drive selection rather than the larger light-duty or normal-duty number.

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10. Frame 6 Construction

The 20G14TF330AN0NNNNN uses Frame 6 construction.

Frame size is an important consideration because it affects:

• Physical dimensions.
• Mounting arrangements.
• Cooling requirements.
• Cable routing.
• Power-terminal arrangement.
• Service access.
• Cabinet design.
• Mechanical handling.

A Frame 6 drive is substantially larger than small and medium PowerFlex drives.

For this reason, the installation should be designed around the drive’s actual mechanical drawing rather than assuming that the drive can fit into a standard small VFD enclosure.

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11. Air-Cooled Design

The drive uses an air-cooled design.

High-current switching devices generate heat during normal operation.

The cooling system removes this heat and helps maintain appropriate operating temperatures for the power electronics.

The installation should therefore provide sufficient:

• Airflow.
• Ventilation.
• Cabinet clearance.
• Heat dissipation.
• Ambient-temperature control.
• Cooling-system maintenance.

The surrounding cabinet should also be designed so that hot exhaust air does not recirculate directly into the drive’s cooling intake.

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12. Open-Type Construction

The product uses an open-type construction.

This means the drive itself should normally be installed inside a suitable industrial enclosure or cabinet when the surrounding environment requires protection from personnel contact, dust, moisture, or other environmental conditions.

The final enclosure arrangement should take into account:

• Local electrical codes.
• Environmental conditions.
• Cabinet ventilation.
• Ingress protection requirements.
• Service access.
• Heat dissipation.
• Cable entry.
• Grounding.
• Maintenance requirements.

The drive’s open construction gives system designers greater flexibility because the final enclosure can be selected according to the specific machine or plant environment.

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13. Filtering Configuration

The catalog configuration is filtered.

Filtering can help manage electrical noise and conducted interference generated by high-frequency switching.

This is particularly important in installations containing:

• PLCs.
• Sensors.
• Instrumentation.
• Industrial Ethernet.
• Communication equipment.
• Encoders.
• Analog measurement systems.
• Other variable-frequency drives.

Good grounding and cable-routing practices remain important even when the drive includes filtering.

Power cables and sensitive control or instrumentation cables should be routed appropriately to reduce the possibility of electrical interference.

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14. Common-Mode Jumper Installed

The model configuration includes the common-mode capacitor jumper installed.

The common-mode configuration affects the relationship between the drive’s internal filtering system, grounding arrangement, motor cable system, and electrical environment.

This is particularly relevant in large motor systems because motor cables can be long and the associated electrical capacitance can become significant.

The factory configuration should therefore be considered when replacing an existing drive with another model.

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15. Dynamic Braking Capability

Unlike a configuration specified without braking hardware, this model includes a DB transistor configuration.

Dynamic braking can be useful when a motor needs to decelerate a load quickly and the mechanical system contains substantial stored kinetic energy.

Typical applications include:

• High-inertia conveyors.
• Centrifuges.
• Large fans.
• Certain hoisting systems.
• Material-handling equipment.
• Rapid-cycle machinery.
• Machinery requiring controlled deceleration.

When a motor decelerates, energy can flow back toward the drive’s DC bus.

A dynamic-braking system provides a method of handling this energy by directing it toward an appropriate braking resistor arrangement.

The exact braking resistor and braking duty must be selected according to the application.

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16. Blank / No HIM Configuration

The catalog number specifies a Blank / No HIM arrangement.

This means the drive is not configured with a conventional local human-machine interface as part of the selected catalog configuration.

This can be advantageous in centralized automation systems where operators interact with the machine through:

• A control panel.
• An HMI.
• A PLC.
• An industrial computer.
• A supervisory control system.

It also keeps the drive front panel simpler for applications where local operator control is not necessary.

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17. Industrial Communication

The PowerFlex 755 platform is designed for integration into industrial automation systems.

The drive can be incorporated into an architecture where motor control is coordinated with other equipment.

Typical information exchanged between the drive and automation system may include:

• Run status.
• Speed reference.
• Actual motor speed.
• Motor current.
• Drive status.
• Fault information.
• Warning information.
• Diagnostic information.
• Control commands.
• Operating parameters.

This type of integration is valuable in automated production systems because it allows the drive to become part of the overall machine-control strategy rather than operating as an isolated component.

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18. Main Applications

18.1 Conveyor Systems

The 20G14TF330AN0NNNNN is well suited to large conveyor applications.

Variable-speed control allows the conveyor to operate according to production requirements rather than continuously running at a fixed speed.

Controlled acceleration can also reduce mechanical stress on:

• Conveyor belts.
• Gearboxes.
• Couplings.
• Bearings.
• Shafts.
• Mechanical structures.

For long conveyors, controlled speed adjustment can also improve coordination between different sections of a production or material-handling system.

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18.2 Large Pumps

Large pumps are another common application for this class of drive.

A variable-speed drive can adjust pump speed according to actual process demand.

Potential applications include:

• Water circulation.
• Cooling-water systems.
• Industrial water treatment.
• Process-fluid systems.
• Large-scale pumping stations.
• Manufacturing plants.

For variable-torque pump applications, reducing motor speed can provide significant energy-saving potential compared with continuously operating at full speed.

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18.3 Fans and Blowers

Large industrial fans and blowers can benefit from variable-speed control.

The drive can adjust airflow according to process requirements.

Applications can include:

• Industrial ventilation.
• Furnace systems.
• Dust extraction.
• Process-air systems.
• Cooling systems.
• Chemical processing.
• Cement production.
• Mining ventilation.

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18.4 Compressors

Large compressors can require significant starting torque and carefully controlled acceleration.

The drive can provide adjustable-speed control for suitable compressor systems.

Important factors include:

• Compressor type.
• Starting torque.
• Acceleration requirements.
• Operating speed.
• Pressure-control strategy.
• Motor current.
• Duty cycle.

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18.5 Mining and Material Handling

The 330 A drive class is suitable for many large material-handling systems.

Potential applications include:

• Bulk-material conveyors.
• Transfer systems.
• Processing equipment.
• Crushers.
• Feeders.
• Large fans.
• Pumps.

Mining applications generally require careful consideration of dust, ambient temperature, motor cable length, grounding, and mechanical loading.

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18.6 Manufacturing Equipment

Large manufacturing systems can use the PowerFlex 755 for coordinated variable-speed motor control.

Applications can include:

• Production lines.
• Material-processing machines.
• Large machine tools.
• Industrial mixers.
• Large mechanical systems.
• Continuous-production equipment.

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18.7 Process Industries

Process industries often require motors to operate at different speeds according to production conditions.

The drive can be applied to:

• Mixers.
• Pumps.
• Fans.
• Blowers.
• Conveyors.
• Compressors.
• Processing machines.

Its integration capabilities also make it suitable for centralized process-control systems.

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19. Main Advantages

High Current Capacity

The 330 A normal-duty rating makes the drive suitable for large industrial motors.

This allows the same PowerFlex 755 platform to be applied to substantially larger machinery than smaller drive configurations.

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480 VAC Industrial Compatibility

The 480 VAC three-phase configuration is compatible with a widely used industrial power class.

This simplifies integration into facilities where 480 VAC three-phase distribution is already available.

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Dynamic Braking Capability

The DB transistor configuration provides a useful option for applications where controlled deceleration is important.

This is especially valuable for loads with significant inertia.

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Air-Cooled Architecture

The air-cooled design provides a practical method for managing the thermal load generated by high-power switching components.

It is suitable for industrial cabinet applications where adequate airflow can be provided.

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Flexible Motor Control

The PowerFlex 755 platform supports a broad range of motor-control applications.

This makes it useful for machines that require more than simple fixed-speed operation.

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Industrial Communication

The drive can be integrated into a larger automation architecture.

This allows operating data, commands, alarms, and diagnostics to become part of the plant-control system.

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Robust Frame 6 Platform

Frame 6 provides a mechanical platform suitable for high-power industrial applications while remaining smaller than the very largest PowerFlex configurations.

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20. Suitable Industries

Industry	Typical Applications
Manufacturing	Production machinery, conveyors, pumps
Mining	Conveyors, crushers, fans, pumps
Cement	Fans, conveyors, processing equipment
Water Treatment	Pumps, blowers
Chemical Processing	Pumps, mixers, fans
Metals	Processing equipment, conveyors
Material Handling	Conveyors, feeders
Utilities	Pumps, fans, auxiliary machinery
Food Processing	Conveyors, mixers, pumps
General Industry	Large variable-speed machinery

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21. Installation Requirements

Because this is a high-current Frame 6 drive, the installation should be designed as an industrial power-electronics installation rather than as a small standalone VFD installation.

Important considerations include:

• Correct input protection.
• Proper disconnect arrangement.
• Correct grounding.
• Suitable motor cable.
• Adequate conductor size.
• Correct cabinet dimensions.
• Proper airflow.
• Adequate service clearance.
• Suitable ambient temperature.
• Correct control wiring.
• Proper communication wiring.
• Correct braking-resistor selection where required.
• Appropriate motor protection.
• Proper commissioning procedures.

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22. Dimensions and Weight

The exact mechanical dimensions and weight should be taken from the mechanical configuration and installation drawing associated with the final drive arrangement.

For catalog-level product descriptions, it is safer not to invent a single dimension or weight because the complete installation arrangement can influence the final physical configuration.

Mechanical Parameter	Specification
Frame Size	Frame 6
Mounting	Industrial cabinet / enclosure
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Configuration-dependent
Mounting Clearance	Application-dependent
Service Clearance	Application-dependent
Cooling Clearance	Application-dependent
Net Weight	Configuration-dependent kg
Shipping Weight	Configuration-dependent kg
Mechanical Handling	Application-dependent

For a quotation or engineering drawing, the exact dimensional drawing should always be matched to the complete catalog configuration rather than relying on a generic Frame 6 dimension.

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23. Five Same-Series or Closely Related Models

The following models are useful alternatives or comparison models within the same high-power PowerFlex 755 family.

Model	Input / Configuration	Current Class	Main Rating	Frame
20G14TF265AN0NNNNN	AC Input / 480 VAC class	265 A	Lower than TF330	Frame 6
20G14TF330JN0NNNNN	DC Input / Common Bus	330 A	Similar current class	Frame 6
20G14TF370AN0NNNNN	AC Input / 480 VAC class	370 A	Higher capacity	Frame 6
20G14TF415AN0NNNNN	AC Input / 480 VAC class	415 A	Higher capacity	Frame 6
20G14TF460AN0NNNNN	AC Input / 480 VAC class	460 A	Higher capacity	Frame 6

These models are particularly useful when the application needs a similar PowerFlex 755 platform but requires either a different current rating or a different input architecture. The catalog family includes the TF265, TF330, TF370, TF415, and TF460 configurations in both AN and JN variants.

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24. Same-Series Comparison

Model	Normal-Duty Current	Configuration	Relative Capacity	Typical Selection Reason
20G14TF265AN0NNNNN	265 A class	AC Input	Lower	Smaller motor/load
20G14TF330AN0NNNNN	330 A	AC Input	Reference model	Large industrial motor
20G14TF330JN0NNNNN	330 A class	DC Input	Similar	Common-bus system
20G14TF370AN0NNNNN	370 A	AC Input	Higher	Increased motor current
20G14TF415AN0NNNNN	415 A	AC Input	Higher	Larger motor/load
20G14TF460AN0NNNNN	460 A	AC Input	Higher	Very high-current application

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25. Five Popular Allen-Bradley Models for Comparison

The following models represent useful reference points from the broader PowerFlex drive range and are suitable for comparison with the 20G14TF330AN0NNNNN.

Model	Product Series	Voltage Class	Current Class	Application Level
20G11GD034AA0NNNNN	PowerFlex 755	480 VAC class	34 A	Medium industrial machinery
20G11GD052AA0NNNNN	PowerFlex 755	480 VAC class	52 A	Medium industrial machinery
20G11GD077AA0NNNNN	PowerFlex 755	480 VAC class	77 A	Medium/high industrial machinery
20G14TE510JN0NNNNN	PowerFlex 755	600 VAC class	510 A class	High-power industrial systems
20G14TD740JN0NNNNN	PowerFlex 755	High-voltage class	740 A class	Very high-power systems

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26. Popular Model Comparison

Model	Voltage Class	Current Level	General Application	Relative Size
20G11GD034AA0NNNNN	480 VAC	34 A	Medium machinery	Smaller
20G11GD052AA0NNNNN	480 VAC	52 A	Medium machinery	Smaller
20G11GD077AA0NNNNN	480 VAC	77 A	Medium/high machinery	Medium
20G14TE510JN0NNNNN	600 VAC	510 A class	Large industrial machinery	Large
20G14TD740JN0NNNNN	High-voltage class	740 A class	Very large industrial systems	Very large

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27. Comparison with Smaller PowerFlex 755 Drives

The difference between the 20G14TF330AN0NNNNN and models such as 20G11GD034AA0NNNNN, 20G11GD052AA0NNNNN, and 20G11GD077AA0NNNNN is primarily the application scale.

The smaller models are suitable for lower-current motors and more compact machinery.

The TF330 configuration is intended for much larger industrial motor systems.

This makes the TF330 more appropriate when the motor current approaches several hundred amperes and when the machine requires a high-capacity drive platform.

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28. Comparison with Higher-Power TF Models

The 20G14TF370AN0NNNNN, 20G14TF415AN0NNNNN, and 20G14TF460AN0NNNNN provide progressively higher current capacity.

This gives engineers a convenient way to remain within the same PowerFlex 755 high-power family when the motor size increases.

The basic selection principle is straightforward:

• Lower motor current → TF265 class.
• Approximately 330 A → TF330 class.
• Higher current → TF370 class.
• Still higher current → TF415 class.
• Very high current → TF460 class.

The final selection should always be based on actual motor nameplate current, duty cycle, overload requirement, ambient conditions, and application characteristics.

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29. Why the 20G14TF330AN0NNNNN Can Be a Good Choice

The model provides a useful balance between high current capacity and practical industrial installation.

It is large enough for substantial motor applications but is not positioned at the extreme upper end of the PowerFlex 755 high-current range.

For many large industrial machines, this makes the 330 A class a practical selection point.

It can provide sufficient capacity for large motors while retaining the flexibility of the PowerFlex 755 architecture.

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30. Motor Selection Considerations

When selecting a motor for this drive, engineers should consider more than horsepower.

Important motor information includes:

• Rated voltage.
• Rated current.
• Rated frequency.
• Rated speed.
• Power factor.
• Efficiency.
• Starting torque.
• Continuous torque.
• Peak torque.
• Service factor.
• Motor insulation.
• Cable length.
• Environmental conditions.

The drive should be selected according to the actual electrical and mechanical requirements of the motor and load.

A motor with a nominal rating close to 250 HP may still have a current requirement that differs from another motor of the same horsepower.

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31. Load Selection

The drive can be considered for several different load types.

Variable-Torque Loads

Examples include:

• Pumps.
• Fans.
• Blowers.

These loads can benefit from adjustable speed and process-based control.

Constant-Torque Loads

Examples include:

• Conveyors.
• Mixers.
• Material-handling machinery.
• Processing equipment.

These applications often require stronger torque performance across a wider operating range.

High-Inertia Loads

Examples include:

• Large fans.
• Centrifugal equipment.
• Certain conveyors.
• Heavy rotating machinery.

These applications may require careful deceleration and braking analysis.

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32. Dynamic Braking Applications

The presence of the DB transistor makes the drive suitable for systems where dynamic braking may be required.

Dynamic braking can help manage energy generated during deceleration.

Typical situations include:

• Rapid stopping.
• Short cycle times.
• Large rotating inertia.
• Frequent acceleration and deceleration.
• High-speed machinery.
• Heavy mechanical loads.

The actual braking resistor should be selected according to the required braking energy, braking time, duty cycle, and drive configuration.

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33. Energy Efficiency Considerations

Variable-speed control can improve system efficiency when the process does not require a motor to operate continuously at full speed.

This is especially relevant to:

• Fans.
• Pumps.
• Blowers.

For variable-torque applications, reducing speed can significantly reduce the power required by the mechanical system.

The actual energy savings depend on the machine design and operating profile, but variable-speed operation generally provides more control than fixed-speed operation combined with mechanical throttling.

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34. Maintenance Considerations

A high-power drive should be included in a planned preventive-maintenance program.

Recommended maintenance areas include:

• Cooling fans.
• Air passages.
• Cabinet cleanliness.
• Power terminals.
• Ground connections.
• Motor cables.
• Control wiring.
• Communication connections.
• Fault history.
• Drive temperature.
• Braking components.
• DC-bus condition.

The cooling system deserves particular attention because restricted airflow can increase operating temperature and reduce the reliability margin of power electronics.

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35. Typical Machine Architecture

A typical application can be organized as follows:

Incoming 480 VAC Three-Phase Power

↓

Industrial Protection and Disconnect Equipment

↓

20G14TF330AN0NNNNN PowerFlex 755 Drive

↓

Three-Phase AC Motor

↓

Mechanical Load

The drive can simultaneously communicate with the machine-control system.

For example:

PLC / Controller

↕

Industrial Network

↕

PowerFlex 755 Drive

↕

Motor

This allows speed commands, operating status, alarms, diagnostics, and other process information to be integrated into the overall automation system.

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36. Product Advantages Summary

Advantage	Description
High Current	330 A normal-duty class
High Power	250 HP normal-duty class
Heavy-Duty Capability	200 HP heavy-duty class
480 VAC Input	Suitable for common industrial power systems
Three-Phase	Designed for industrial motor applications
AC Precharge	Controlled DC-link charging
Dynamic Braking	DB transistor configuration
Air Cooling	Suitable for high-power cabinet installations
Frame 6	High-capacity industrial mechanical platform
Filtering	Helps manage electrical interference
CM Jumper	Factory-configured common-mode arrangement
PowerFlex 755 Platform	Broad industrial motor-control capability
Network Integration	Suitable for automation-system integration
Wide Application Range	Pumps, fans, conveyors, compressors, process equipment

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37. Complete Technical Summary

Category	Specification
Model	20G14TF330AN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750 Series
Product Series	PowerFlex 755
Product Type	AC Drive
Input Voltage	480 VAC
Input Phase	Three Phase
Input Configuration	AC Input with Precharge
Normal-Duty Current	330 A
Normal-Duty Power	250 HP
Normal-Duty Approx. Power	Approx. 186 kW
Heavy-Duty Power	200 HP
Heavy-Duty Approx. Power	Approx. 149 kW
Frame	Frame 6
Cooling	Air Cooled
Enclosure	Open Type
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	DB Transistor
HIM	Blank / No HIM
Motor Application	Industrial three-phase motors
Communication	Industrial automation network integration
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Configuration-dependent
Net Weight	Configuration-dependent kg
Shipping Weight	Configuration-dependent kg
Main Application	Large industrial motor control

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38. Final Evaluation

The Allen-Bradley 20G14TF330AN0NNNNN is a high-capacity PowerFlex 755 AC drive designed for large industrial motor applications.

Its 480 VAC three-phase input, 330 A normal-duty current rating, 250 HP normal-duty rating, 200 HP heavy-duty rating, Frame 6 construction, air-cooled design, AC input with precharge, filtered configuration, CM jumper installation, and dynamic-braking transistor make it a strong choice for demanding industrial machinery.

The drive is particularly suitable for large conveyors, pumps, fans, blowers, compressors, process machinery, mining equipment, material-handling systems, and manufacturing equipment.

Its biggest practical strengths are the high current capacity, industrial-grade PowerFlex 755 platform, flexible motor-control architecture, dynamic-braking capability, and suitability for integration into a larger automation system.

When selecting a replacement or alternative, the most important factors are the motor’s actual full-load current, voltage, duty cycle, overload requirement, acceleration and deceleration characteristics, braking requirements, environmental conditions, and available cabinet space.

For applications requiring a lower current level, the 20G14TF265AN0NNNNN is a natural related option.

For applications requiring greater capacity, the 20G14TF370AN0NNNNN, 20G14TF415AN0NNNNN, and 20G14TF460AN0NNNNN provide progressively higher current classes within the same general PowerFlex 755 family.

For common-DC-bus applications, the corresponding JN configurations should be evaluated separately because their input architecture is different from the AN AC-input configuration.

Overall, the 20G14TF330AN0NNNNN is a strong high-power industrial drive for users who need a reliable 480 VAC variable-speed motor-control solution in a large automated machine or process system.