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Allen-Bradley 20G11TD430AN0NNNNN PowerFlex 755 AC Drive – Detailed Product Information, Specifications, Applications and Recommended Models

1. Product Overview

The Allen-Bradley 20G11TD430AN0NNNNN is a high-performance industrial AC drive belonging to the PowerFlex 755 series. It is designed for large three-phase AC motor applications where high output current, stable speed control, adjustable motor operation and reliable industrial performance are required.

This model is a 480 VAC, three-phase, air-cooled AC drive with a normal-duty output current rating of 430 A. Its normal-duty motor rating is approximately 350 HP / 260 kW, making it suitable for large industrial motors and heavy mechanical systems.

The drive uses an AC input with precharge and DC terminals and is configured as an open-type/IP00 Frame 8 unit. It is intended to be installed as part of a suitable industrial electrical system rather than used as a small standalone wall-mounted drive.

The model is particularly suitable for large conveyors, pumps, fans, blowers, compressors, material-handling equipment, process machinery, mining equipment and other large rotating machines.

The original 20G11TD430AN0NNNNN is a discontinued catalog configuration. For replacement planning, the newer 20G11TD430JN0NNNNN is the most relevant replacement model to evaluate.

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2. Brand and Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	AC Drive / Variable Frequency Drive
Application Class	High-Performance Industrial AC Drive
Cooling	Air Cooled
Voltage Class	480 VAC
Input Phase	Three Phase
Frame	Frame 8
Enclosure	Open Type / IP00
Output Current	430 A Normal Duty
Normal Duty Motor Rating	350 HP
Normal Duty Motor Rating	Approximately 260 kW
Light Duty Rating	400 HP
Heavy Duty Rating	300 HP
Input Configuration	AC Input with Precharge
DC Terminals	Yes
Dynamic Braking	None in this configuration
HIM	No HIM / Blank Configuration
EMC Filtering	Included
Typical Installation	Industrial Cabinet / Electrical Equipment
Product Status	Discontinued original configuration

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3. Main Technical Parameters

Parameter	Specification
Model	20G11TD430AN0NNNNN
Series	PowerFlex 755
Drive Type	High-performance AC variable-frequency drive
Input Voltage	480 VAC nominal
Input Voltage Range	Approximately 432–528 VAC
Input Phase	3 Phase
Input Frequency	47–63 Hz
DC Voltage Class	650 VDC
Normal Duty Continuous Current	430 A
Normal Duty Motor Power	350 HP
Normal Duty Motor Power	Approximately 260 kW
Light Duty Motor Power	400 HP
Heavy Duty Motor Power	300 HP
Heavy Duty Current	Approximately 370 A
Output Phase	3 Phase
Output Frequency	Up to approximately 400 Hz, depending on application and motor
Cooling Method	Forced Air / Air Cooled
Frame Size	Frame 8
Enclosure Type	Open Type / IP00
Input Arrangement	AC Input with Precharge
DC Terminals	Included
EMC Filter	Standard / Included
Common Mode Capacitor Configuration	Jumper Removed
Dynamic Braking	None
HIM	None / Blank
Operating Temperature	Approximately 0–50 °C
Storage Temperature	Approximately -40–70 °C
Installation Environment	Industrial controlled environment
Approximate Product Weight	315.7 kg
Approximate Product Weight	696 lb
Frame 8 Cabinet-Style Weight	Configuration dependent; may be substantially higher
Approximate Frame 8 Open-Type Envelope	Approximately 2145 × 778 × 425 mm
Typical Cabinet Width	Approximately 600 mm class
Typical Cabinet Depth	Approximately 600–800 mm class
Typical Cabinet Height	Approximately 2453 mm class

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4. Dimensions and Weight

The physical dimensions of a large Frame 8 drive need to be considered carefully because the dimensions of the drive assembly itself are not necessarily the same as the dimensions of the final electrical cabinet.

For the drive itself, an approximate open-type Frame 8 envelope can be considered around:

Mechanical Parameter	Approximate Value
Height	2145 mm
Width	778 mm
Depth	425 mm
Approximate Weight	315.7 kg
Weight in lb	Approximately 696 lb
Frame	Frame 8
Enclosure	Open Type / IP00

The approximate 315.7 kg weight refers to the large drive assembly configuration and should not automatically be treated as the total weight of a completed cabinet.

A complete cabinet installation can be considerably heavier because it may include the drive, cabinet structure, disconnect equipment, busbars, field wiring components, cooling equipment, circuit protection, control equipment and other accessories.

For equipment transportation and foundation design, the final assembled cabinet weight should therefore be checked against the actual configuration.

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5. Power Rating

The 20G11TD430AN0NNNNN provides several duty classifications.

Duty Classification	Output Current	Motor Rating
Light Duty	Approximately 485 A	400 HP
Normal Duty	430 A	350 HP
Heavy Duty	Approximately 370 A	300 HP

The 350 HP Normal Duty rating is one of the most important specifications for this model.

Normal Duty is generally associated with applications where the motor does not experience unusually severe overload conditions.

Heavy Duty applications should be evaluated according to the actual motor load, acceleration requirements, overload profile, ambient temperature and duty cycle.

It is important not to select the drive based only on horsepower. The motor’s full-load current, overload requirements and actual mechanical load should also be considered.

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6. Product Description

The 20G11TD430AN0NNNNN is a large industrial variable-frequency drive designed to control the speed and operating characteristics of three-phase AC motors.

Instead of operating an AC motor continuously at a fixed line frequency, the drive can adjust the electrical output supplied to the motor. This allows the motor speed to be matched more closely to the requirements of the mechanical process.

This type of control is particularly valuable in large industrial equipment because motor speed has a direct influence on production capacity, mechanical stress, process stability and, in many applications, energy consumption.

The 20G11TD430AN0NNNNN is designed for applications where a small general-purpose drive would not provide sufficient current or power capacity.

Its 430 A Normal Duty rating places it in the high-power industrial category, making it suitable for motors in the several-hundred-horsepower range.

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7. Main Features

7.1 High Current Output

The drive provides a 430 A Normal Duty output rating.

This high current capacity allows the drive to control large industrial motors and makes it suitable for equipment requiring substantial torque and mechanical power.

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7.2 High Horsepower Capability

The drive can support approximately 350 HP / 260 kW under Normal Duty.

For Light Duty applications, the corresponding rating can reach approximately 400 HP, while Heavy Duty applications are approximately 300 HP.

This makes the model appropriate for large rotating machinery.

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7.3 480 VAC Three-Phase Operation

The drive is designed for the 480 VAC three-phase industrial power class.

This voltage class is widely used in large industrial motor systems and is suitable for many manufacturing, processing, material-handling and infrastructure applications.

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7.4 Air-Cooled Construction

The drive uses a forced-air cooling arrangement.

For high-power semiconductor equipment, thermal management is extremely important. The installation therefore needs sufficient airflow, appropriate cabinet ventilation and adequate separation from heat-generating equipment.

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7.5 AC Input with Precharge

The model uses an AC input arrangement with precharge.

Precharge is important in high-power drive systems because it helps manage the charging of the DC bus during startup and reduces the initial electrical stress associated with energizing the internal DC-link capacitors.

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7.6 DC Terminals

The drive includes DC terminals.

This provides additional flexibility for certain large-drive system architectures and can be useful in applications where DC-bus connections or coordinated drive arrangements are required.

The exact DC-bus configuration must always be engineered according to the complete electrical system.

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7.7 Open-Type/IP00 Configuration

The 20G11TD430AN0NNNNN is an open-type/IP00 configuration.

This means the drive is generally intended to be installed inside an appropriate electrical cabinet or protected equipment enclosure.

The open construction provides flexibility for system integrators because the drive can become part of a larger electrical assembly.

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8. Product Applications

8.1 Conveyor Systems

Large conveyors are one of the most suitable application areas for a high-power AC drive.

The drive can control motor speed, provide controlled acceleration and deceleration, and allow conveyor operating speed to be adjusted according to production requirements.

Typical applications include:

• Mining conveyors
• Aggregate conveyors
• Bulk material handling
• Manufacturing conveyors
• Warehouse material transport
• Cement production
• Port material handling
• Heavy industrial transfer systems

For long conveyors, controlled acceleration can also help reduce mechanical shock to belts, couplings, gearboxes and other transmission components.

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9. Pump Applications

Large pumps frequently operate under changing process conditions.

Using a variable-frequency drive allows the motor speed to be adjusted according to the required flow or pressure.

Potential applications include:

• Water treatment
• Industrial water circulation
• Cooling-water systems
• Process pumps
• Mining dewatering
• Irrigation
• Industrial pumping stations
• Chemical-process equipment

For variable-torque pump applications, adjusting motor speed can provide significant operational advantages compared with continuously operating the motor at full speed.

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10. Fan and Blower Applications

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

Applications include:

• Industrial ventilation
• Furnace ventilation
• Exhaust systems
• Dust collection
• Process-air systems
• Large cooling fans
• Mining ventilation
• Industrial combustion-air systems

Fan speed can be adjusted to match airflow requirements, which can improve process control and potentially reduce unnecessary energy use during periods of lower demand.

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11. Compressor Applications

Large compressors can require controlled motor acceleration and stable speed regulation.

A high-power AC drive can help manage motor starting and provide adjustable operating speed where the compressor and process are designed for variable-speed operation.

Potential applications include:

• Industrial air compressors
• Process compressors
• Gas-handling equipment
• Manufacturing systems
• Large pneumatic systems

The actual suitability must be evaluated together with the compressor manufacturer’s operating requirements.

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12. Mining Applications

The 20G11TD430AN0NNNNN is particularly well suited to large mining and material-processing machinery because of its high current and horsepower capability.

Potential applications include:

• Mining conveyors
• Crushers
• Screens
• Large pumps
• Fans
• Feeders
• Material transport systems
• Processing machinery

Mining machinery often experiences substantial load changes, so drive sizing should take into account starting torque, overload duration and mechanical shock.

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13. Material Handling

Large material-handling systems can benefit from adjustable motor speed and controlled acceleration.

The drive can be used in:

• Bulk material systems
• Transfer equipment
• Conveyor lines
• Heavy-duty feeders
• Industrial elevators
• Processing-line transport systems
• Large rotating material-handling equipment

The exact suitability depends on the mechanical arrangement and whether additional braking or feedback functions are required.

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14. Industrial Processing Machinery

The drive can also be used in large industrial processing systems.

Potential applications include:

• Mixers
• Agitators
• Extrusion machinery
• Large production machines
• Process equipment
• Industrial rotating equipment
• Large machine systems
• Production-line machinery

Where process speed needs to be adjusted continuously, a high-performance AC drive can provide considerably more flexibility than a fixed-speed motor starter.

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15. Main Advantages

15.1 High-Power Industrial Performance

The most obvious advantage is its ability to handle large motors.

With approximately 350 HP / 260 kW Normal Duty capacity, the drive is suitable for equipment that would be outside the range of compact VFD products.

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15.2 High Current Capacity

The 430 A Normal Duty rating provides substantial output-current capability.

This is especially valuable for large motors with high full-load current and for applications where acceleration and load changes require significant motor current.

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15.3 Flexible Motor Speed Control

The drive allows motor speed to be adjusted according to process requirements.

This can provide advantages in:

• Process control
• Production adjustment
• Acceleration control
• Deceleration control
• Mechanical stress reduction
• Flow control
• Airflow control
• Conveyor speed control

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15.4 Suitable for Heavy Industrial Equipment

The PowerFlex 755 platform is intended for demanding industrial applications rather than small machinery.

This makes the product particularly appropriate for large production facilities and heavy mechanical systems.

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15.5 Multiple Duty Ratings

The drive offers Light Duty, Normal Duty and Heavy Duty classifications.

This allows the same general drive family to be evaluated for different load conditions.

The final selection should always be based on the actual application rather than simply selecting the largest horsepower number.

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15.6 DC-Bus Flexibility

The presence of DC terminals can provide additional possibilities for large coordinated drive systems.

This is particularly useful in installations where multiple drives or specialized DC-bus architectures are required.

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15.7 Industrial Automation Integration

The PowerFlex 755 family is intended to work as part of a larger industrial automation environment.

This makes it suitable for applications where motor control needs to interact with PLC systems, production controls, operator interfaces and industrial communication networks.

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16. Important Installation Considerations

Because this is a large Frame 8 drive, installation requires significantly more planning than a small VFD.

The electrical system should be designed around the correct three-phase voltage, current rating, branch protection, grounding, motor cabling, short-circuit requirements and installation environment.

Thermal management is also important.

The drive generates heat during operation, and the cabinet must provide appropriate airflow and heat dissipation.

Mechanical handling is another important consideration.

At approximately 315.7 kg for the drive assembly, suitable lifting and transportation equipment may be required.

If the drive is installed inside a complete cabinet, the total cabinet weight can be considerably greater.

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17. Five Recommended Models in the Same Series

The following models are closely related to the 20G11TD430AN0NNNNN and belong to the same PowerFlex 755 480 VAC three-phase product range.

Model	Voltage	Light Duty	Normal Duty	Heavy Duty	Frame	Approx. Dimensions	Weight
20G11TD485AN0NNNNN	480 VAC	450 HP	400 HP	350 HP	8	Approx. Frame 8 class	Approx. 315.7 kg class
20G11TD545AN0NNNNN	480 VAC	500 HP	450 HP	350 HP	8	Approx. Frame 8 class	Approx. 315.7 kg class
20G11TD617AN0NNNNN	480 VAC	600 HP	500 HP	400 HP	8	Approx. Frame 8 class	Approx. 315.7 kg class
20G11TD710AN0NNNNN	480 VAC	650 HP	600 HP	450 HP	8	Approx. Frame 8 class	Approx. 315.7 kg class
20G11TD740AN0NNNNN	480 VAC	700 HP	650 HP	500 HP	8	Approx. Frame 8 class	Approx. 315.7 kg class

These models increase the available current and horsepower capacity while maintaining the same general 480 VAC PowerFlex 755 platform.

The most suitable model should be selected according to the motor full-load current, required overload capability and actual mechanical duty.

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18. Comparison of Same-Series Models

Model	Normal Duty Current	Normal Duty Power	Typical Position
20G11TD430AN0NNNNN	430 A	350 HP	Base reference model
20G11TD485AN0NNNNN	485 A	400 HP	One step higher
20G11TD545AN0NNNNN	545 A	450 HP	Medium-high power
20G11TD617AN0NNNNN	617 A	500 HP	High power
20G11TD710AN0NNNNN	710 A	600 HP	Very high power
20G11TD740AN0NNNNN	740 A	650 HP	Higher-power configuration

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19. Five Related Models From the Same Brand

The following models are useful related choices when the application requires either a direct replacement, a different voltage class or a different power level.

Model	Series	Voltage Class	Current / Power Class	Main Use	Approx. Dimensions	Weight
20G11TD430JN0NNNNN	PowerFlex 755	480 VAC	430 A / 350 HP ND	Replacement for 20G11TD430AN0NNNNN	Frame 8 class	Approx. 315.7 kg class
20G11TD485JN0NNNNN	PowerFlex 755	480 VAC	485 A / 400 HP ND	Higher-power replacement configuration	Frame 8 class	Approx. 315.7 kg class
20G11TE395AN0NNNNN	PowerFlex 755	600 VAC	395 A / 400 HP ND class	Large 600 V motor applications	Large Frame class	Configuration dependent
20G11TF370AN0NNNNN	PowerFlex 755	690 VAC	370 A / 355 kW ND class	High-voltage large motor applications	Large Frame class	Configuration dependent
20G11TE435AN0NNNNN	PowerFlex 755	600 VAC	435 A / 450 HP ND class	Higher-power 600 V applications	Large Frame class	Configuration dependent

The first model in this table, 20G11TD430JN0NNNNN, is the most important one when the objective is to replace the original 20G11TD430AN0NNNNN.

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20. Direct Replacement Consideration

For an existing system using 20G11TD430AN0NNNNN, the most relevant replacement model is:

20G11TD430JN0NNNNN

The replacement retains the same general application position:

Parameter	Original Model	Replacement Model
Model	20G11TD430AN0NNNNN	20G11TD430JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	480 VAC	480 VAC
Input	AC with Precharge	AC with Precharge
Normal Duty Current	430 A	430 A class
Normal Duty Power	350 HP	350 HP class
Frame	8	8
Cooling	Air Cooled	Air Cooled
Application	Large Industrial Motor Control	Large Industrial Motor Control

Even when a replacement has the same current and horsepower rating, the complete catalog configuration should be checked before installation.

Particular attention should be paid to:

• Motor data
• Control method
• Communication requirements
• Feedback requirements
• Braking requirements
• Input configuration
• EMC filtering
• Cabinet dimensions
• Wiring
• PLC integration
• Existing parameter settings
• Firmware compatibility
• Safety requirements

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21. Product Selection by Application

Application	Recommended PowerFlex 755 Range	Selection Consideration
Large Conveyor	430–617 A class	Starting torque and load profile
Mining Conveyor	430–710 A class	Heavy mechanical duty
Large Pump	430–545 A class	Variable-torque operation
Large Fan	430–545 A class	Variable-speed airflow control
Large Blower	430–617 A class	Continuous operation
Compressor	430–617 A class	Acceleration and load requirements
Crusher	545–710 A class	High overload and mechanical shock
Large Feeder	430–617 A class	Starting and torque requirements
Material Handling	430–710 A class	Acceleration/deceleration
Large Process Machine	430–617 A class	Speed regulation and automation
Existing 20G11TD430AN0NNNNN	20G11TD430JN0NNNNN	Replacement evaluation

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22. Why the 20G11TD430AN0NNNNN Is Suitable for Large Industrial Applications

The main strength of this model is the combination of high current capacity and high motor-power capability.

A 430 A Normal Duty rating provides sufficient capacity for large motors while maintaining the flexibility required by industrial applications.

The drive is also not limited to a single type of machine.

The same basic drive platform can be used for conveyors, pumps, fans, compressors and processing equipment, provided the motor and mechanical load are correctly matched to the drive.

This versatility makes the PowerFlex 755 family particularly useful for large facilities where many different types of motor-driven equipment are installed.

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23. Energy and Process Control Advantages

A variable-frequency drive can provide more than simple motor starting.

For variable-torque applications such as pumps and fans, reducing motor speed can significantly reduce the mechanical power required by the system.

For conveyors, adjustable speed can allow production rates to be matched to actual process requirements.

For fans and blowers, speed control can help regulate airflow.

For pumps, speed control can help regulate flow and pressure.

For processing machines, adjustable motor speed can provide better control over production conditions.

The actual energy savings depend heavily on the mechanical system, operating hours, load profile and control strategy.

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24. Maintenance Considerations

Large air-cooled drives require appropriate maintenance.

Important areas include:

• Cooling fans
• Airflow passages
• Electrical connections
• Cabinet ventilation
• Heat accumulation
• DC-bus condition
• Power connections
• Grounding
• Control wiring
• Motor cables
• Environmental contamination

Dust and other contaminants can reduce cooling performance, particularly in mining, cement, aggregate and other harsh industrial environments.

Regular inspection of the cooling system is therefore important.

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25. Advantages and Limitations at a Glance

Item	Assessment
Power Capacity	Excellent for large motors
Current Capacity	High
Motor Speed Control	Excellent
Industrial Application Range	Very Broad
Conveyor Applications	Highly Suitable
Pump Applications	Highly Suitable
Fan Applications	Highly Suitable
Mining Applications	Suitable with correct duty selection
Cabinet Integration	Suitable
DC-Bus Capability	Available
Cooling	Forced Air
Physical Size	Large
Weight	Heavy
Installation Complexity	High
Small Machine Applications	Generally excessive
Existing-System Replacement	Very relevant
New Installation	Consider current replacement configuration

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26. Overall Product Evaluation

The Allen-Bradley 20G11TD430AN0NNNNN is a high-power PowerFlex 755 AC drive designed for large three-phase industrial motors.

Its principal electrical characteristics are a 480 VAC three-phase input, 430 A Normal Duty output current, approximately 350 HP / 260 kW Normal Duty capability, air cooling, Frame 8 construction, AC input with precharge and DC terminals.

Its strongest application areas include large conveyors, pumps, fans, blowers, compressors, mining equipment, bulk material handling and large industrial process machinery.

The product’s main advantages are its high current capability, high horsepower rating, flexible speed control, industrial-duty construction, multiple duty classifications and ability to integrate into larger automated motor-control systems.

Its main disadvantages are its substantial physical size, high weight, installation complexity and the need for proper cabinet cooling and electrical engineering.

For the original model, the approximate drive assembly weight is 315.7 kg, while the physical envelope is in the large Frame 8 category. A complete cabinet installation can be heavier and larger, so the final mechanical configuration must be checked before transportation, installation and foundation planning.

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27. Recommended Model Ranking

Rank	Model	Recommendation
1	20G11TD430JN0NNNNN	Best choice to investigate for replacement of the original model
2	20G11TD485AN0NNNNN	Recommended when approximately 400 HP Normal Duty is required
3	20G11TD545AN0NNNNN	Recommended when approximately 450 HP Normal Duty is required
4	20G11TD617AN0NNNNN	Recommended when approximately 500 HP Normal Duty is required
5	20G11TD710AN0NNNNN	Recommended when approximately 600 HP Normal Duty is required
6	20G11TD740AN0NNNNN	Recommended for still higher-power applications

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28. Final Summary

The 20G11TD430AN0NNNNN belongs to the PowerFlex 755 series and is a large-frame, air-cooled, high-performance AC drive intended for industrial motor-control applications.

Its 480 VAC three-phase voltage class, 430 A Normal Duty output, 350 HP Normal Duty rating, 400 HP Light Duty rating and 300 HP Heavy Duty rating make it a strong choice for large industrial motors.

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

Its Frame 8 design provides a high-power platform, while the AC input with precharge and DC terminals provides additional flexibility for large industrial electrical systems.

For physical planning, the drive assembly is approximately 315.7 kg, with an approximate Frame 8 open-type envelope of 2145 × 778 × 425 mm. A complete cabinet installation may have substantially different dimensions and a higher total weight.

For applications requiring a replacement of the original model, 20G11TD430JN0NNNNN should be the first related model to evaluate.

For applications requiring more power, 20G11TD485AN0NNNNN, 20G11TD545AN0NNNNN, 20G11TD617AN0NNNNN, 20G11TD710AN0NNNNN and 20G11TD740AN0NNNNN provide progressively higher current and motor-power capabilities.

In practical terms, the 20G11TD430AN0NNNNN is best regarded as a large industrial motor-control drive for high-power applications, rather than a general-purpose compact inverter. Its combination of current capacity, horsepower capability, adjustable speed control and industrial system integration makes it particularly valuable for large machines where reliable and controllable motor operation is required.