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Allen-Bradley 20G11TD545AN0NNNNN PowerFlex 755 AC Drive – Detailed Product Specifications, Applications, Advantages and Related Models

1. Product Overview

The Allen-Bradley 20G11TD545AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motors and demanding variable-speed applications.

It belongs to the PowerFlex 750-Series and is specifically part of the PowerFlex 755 product family. The drive is designed for high-performance industrial motor control where a conventional compact variable-frequency drive is not sufficient in terms of current capacity, overload capability, network integration, or application flexibility.

The model is designed for 480 VAC, three-phase industrial power systems and provides a 545 A maximum continuous output-current class within its specified duty ratings.

Under the standard rating structure, the drive provides approximately 500 HP for Light Duty, 450 HP for Normal Duty, and 350 HP for Heavy Duty applications.

This makes the 20G11TD545AN0NNNNN particularly suitable for large pumps, fans, blowers, conveyors, compressors, mixers, extruders, process machinery, and other high-power rotating equipment.

The catalog configuration is an air-cooled, open-type Frame 8 PowerFlex 755 drive with embedded Ethernet/IP, AC input with precharge and DC terminals, EMC filtering, a removed common-mode jumper, no internal dynamic-braking resistor/transistor arrangement, and no local HIM operator module.

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2. Brand and Series Information

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Product Series	PowerFlex 755
Product Type	Industrial AC Variable Frequency Drive
Catalog Number	20G11TD545AN0NNNNN
Drive Category	High-Power AC Drive
Voltage Class	480 VAC
Phase	Three Phase
Frame	Frame 8
Cooling	Forced Air / Air Cooled
Construction	Open Type / IP00
Communication	Embedded Ethernet/IP
Input Type	AC Input with Precharge
DC Terminals	Included
EMC Configuration	Filtered
CM Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Main Application	Large industrial motor control

The model number identifies a specific configuration rather than simply identifying the PowerFlex 755 family.

This is important when purchasing, replacing, or comparing drives because two PowerFlex 755 units with similar current ratings can have different filtering, common-mode capacitor, braking, enclosure, operator-interface, and communication configurations.

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3. Detailed Technical Specifications

Parameter	Specification
Model Number	20G11TD545AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	AC Variable Frequency Drive
Input Voltage	480 VAC
Input Phase	3 Phase
Input Frequency	60 Hz class
Input Voltage Range	Approximately 432–528 VAC
Light-Duty Current	545 A
Normal-Duty Current	545 A
Heavy-Duty Current	454 A
Light-Duty Horsepower	500 HP
Normal-Duty Horsepower	450 HP
Heavy-Duty Horsepower	350 HP
Approx. Normal-Duty Power	335 kW class
Approx. Light-Duty Power	373 kW class
Frame	Frame 8
Enclosure Type	Open Type / IP00
Cooling Method	Forced Air
Input Configuration	AC Input with Precharge
DC Terminals	Yes
Network	Embedded Ethernet/IP
EMC Filtering	Filtered
Common-Mode Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Installation	Industrial cabinet / drive enclosure
Output Frequency Capability	Application-dependent, up to high-frequency motor-control range
Intended Motor Class	Large industrial motors
Approx. Mechanical Width	487 mm reference
Approx. Mechanical Height	1984 mm without outlet ducting
Approx. Mechanical Height with Ducting	2064 mm
Approx. Mechanical Depth	425 mm reference
Weight	Configuration-dependent; final mechanical drawing should be used for exact kg
Reference Handling Weight	Large Frame 8 assembly; exact kg depends on final construction

The electrical rating information for this model places it at 545 A, 500 HP Light Duty, 450 HP Normal Duty, and 350 HP Heavy Duty at 480 VAC three-phase.

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4. Duty Rating Details

The 20G11TD545AN0NNNNN is not limited to a single horsepower rating.

The PowerFlex 755 rating system allows the drive to be applied differently according to the type of motor load and the required overload performance.

Duty Rating	Current Rating	Horsepower Rating	Typical Load Type
Light Duty	545 A	500 HP	Variable-torque and lighter overload applications
Normal Duty	545 A	450 HP	General industrial operation
Heavy Duty	454 A	350 HP	Higher torque / higher overload applications

The difference between these ratings is important.

A 450 HP motor used on a relatively stable industrial load should not automatically be treated in the same way as a 350 HP motor driving a highly demanding conveyor or other high-torque machine.

The final drive selection should be based on motor nameplate current, load characteristics, overload duration, acceleration requirements, ambient conditions, and the actual machine duty cycle.

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5. 480 VAC Three-Phase Electrical Design

The 20G11TD545AN0NNNNN is designed around a 480 VAC three-phase power system.

This voltage class is commonly used for large industrial motors in manufacturing facilities, processing plants, water systems, material-handling systems, HVAC installations, large pumping systems, and other industrial environments.

The input configuration includes AC input with precharge and DC terminals.

The precharge arrangement is important in high-power drives because the DC bus contains substantial energy and the input power section needs to be energized in a controlled manner.

The DC terminals also provide additional flexibility for applications where DC-bus connections or other specialized drive-system arrangements are required.

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6. High-Current Power Capability

The most obvious feature of this model is its large current rating.

A 545 A class drive is intended for large industrial motors and large mechanical systems.

At this power level, the drive is no longer simply a small motor-speed controller. It becomes a major component of the plant’s electrical and mechanical system.

The drive must therefore be considered together with the incoming power system, protective devices, motor cable, grounding system, cabinet ventilation, motor characteristics, braking requirements, and control architecture.

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7. Frame 8 Construction

The 20G11TD545AN0NNNNN is a Frame 8 PowerFlex 755 configuration.

Frame 8 is intended for large drive power levels and consequently has considerably larger mechanical dimensions than compact PowerFlex drives.

The drive is designed to be incorporated into an industrial electrical enclosure or suitable equipment lineup.

Because of its physical scale, the installation should include sufficient space for power connections, control wiring, airflow, service access, lifting, inspection, and maintenance.

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8. Mechanical Dimensions

The Frame 8 IP00 installation documentation gives reference mechanical dimensions for the drive unit.

The approximate drive-unit dimensions are in the range of 487 mm wide, approximately 1984 mm high without the outlet ducting kit, approximately 2064 mm high with the outlet ducting kit, and approximately 425 mm deep.

These figures should be regarded as mechanical reference dimensions rather than a replacement for the final equipment drawing.

Mechanical Parameter	Approximate Value
Model	20G11TD545AN0NNNNN
Frame	Frame 8
Construction	Open Type / IP00
Approx. Width	487 mm
Approx. Height Without Outlet Ducting	1984 mm
Approx. Height With Outlet Ducting	2064 mm
Approx. Depth	425 mm
Approx. Width	0.487 m
Approx. Height	1.984–2.064 m
Approx. Depth	0.425 m
Weight	Configuration-dependent
Weight Unit	kg
Recommended Reference	Final mechanical drawing / equipment assembly

The physical dimensions are especially important when designing a cabinet or electrical room because the drive is substantially taller than many conventional floor-mounted VFDs.

The outlet ducting arrangement should also be considered when determining the final cabinet height.

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9. Weight and Handling

The exact shipping or installed weight of a large Frame 8 configuration depends on the final equipment arrangement.

For that reason, the weight of the complete drive system should not be confused with the weight of a bare electronic power module.

A complete installation may include the power structure, control pod, bus structures, mounting hardware, cable compartments, protective devices, cabinet sections, and other components.

Weight Parameter	Specification
Model	20G11TD545AN0NNNNN
Frame	Frame 8
Weight	Configuration-dependent
Weight Unit	kg
Shipping Weight	Configuration-dependent
Cabinet Assembly Weight	Can be substantially higher than the drive power section
Lifting Requirement	Mechanical lifting equipment normally required for large assemblies
Final Reference	Equipment-specific mechanical / shipping drawing

For transportation, foundation loading, lifting, and installation planning, the final configured assembly weight should always be used rather than estimating the weight from the electrical current rating alone.

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10. Cooling System

The drive uses forced-air cooling.

At 545 A, thermal management becomes an important part of system design.

The drive power section generates heat during operation, and this heat must be removed from the electrical enclosure.

The cabinet designer therefore needs to consider airflow direction, inlet temperature, exhaust temperature, cabinet heat load, surrounding equipment, filters, ducting, and maintenance requirements.

Poor ventilation can reduce drive reliability and may cause unnecessary thermal protection trips.

For high-power installations, the cooling system should be designed at the same time as the electrical cabinet rather than treated as an afterthought.

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11. EMC Filtering

The 20G11TD545AN0NNNNN is configured as a filtered drive.

EMC filtering is useful in industrial systems where electrical noise needs to be controlled.

Large VFDs use high-speed switching power electronics, and this switching activity can produce common-mode and differential-mode electrical noise.

Proper EMC performance depends on more than the internal filter.

The installation should also pay attention to motor cable routing, cable shielding, grounding, cabinet bonding, control-cable separation, and the physical arrangement of power and communication wiring.

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12. CM Jumper Removed Configuration

One of the important details of the AN configuration is the CM jumper removed arrangement.

This differentiates it from later configurations where the common-mode jumper is installed.

The CM configuration can affect the drive’s relationship with the grounding system and motor-cable environment.

It should therefore be considered during replacement projects.

If an older AN drive is being replaced with a JN configuration, the engineer should not assume that the two units are electrically identical simply because the current and horsepower ratings are similar.

The grounding system, EMC requirements, motor cable arrangement, and replacement configuration should all be checked.

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13. Embedded Ethernet/IP

The 20G11TD545AN0NNNNN includes embedded Ethernet/IP capability.

This allows the drive to be integrated into Ethernet-based industrial control architectures.

In a typical system, the drive can exchange control commands and operating information with a PLC or automation controller.

Typical network information can include:

• Start and stop commands.
• Speed reference.
• Output frequency.
• Motor current.
• Drive status.
• Fault status.
• Alarm information.
• Operating condition.
• Control commands.

This is particularly useful in large manufacturing plants where many drives are controlled from a centralized automation system.

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14. Blank / No HIM Configuration

The catalog configuration specifies Blank / No HIM.

HIM means Human Interface Module.

A HIM can provide local access to drive parameters, operating status, diagnostics, and setup functions.

The absence of a HIM is not necessarily a disadvantage.

For large automated machines, local drive operation may not be required because the machine is controlled from an HMI, PLC, SCADA system, or centralized operator station.

This configuration can therefore provide a cleaner cabinet arrangement while allowing the drive to remain part of a larger automation system.

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15. Dynamic Braking

The standard configuration of the 20G11TD545AN0NNNNN specifies no dynamic braking.

Dynamic braking is normally considered when a large rotating load must be decelerated quickly and the resulting kinetic energy needs to be dissipated.

Applications involving high-inertia fans, conveyors, centrifuges, large unwind systems, hoists, or rapidly changing speed may require a more detailed braking analysis.

If rapid deceleration is required, the complete system should be reviewed to determine whether external braking equipment, regenerative operation, mechanical braking, or another solution is appropriate.

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16. Product Introduction

The Allen-Bradley 20G11TD545AN0NNNNN is designed for applications where high-power motor control, industrial automation integration, and flexible drive configuration are required.

It is significantly larger and more capable than compact machine-level VFDs.

Its main purpose is to convert fixed-frequency AC electrical power into controlled variable-frequency output power for large industrial motors.

By controlling motor frequency and voltage, the drive can regulate motor speed and support controlled acceleration and deceleration.

This allows a large motor to operate according to the actual machine requirement instead of simply operating at full speed continuously.

For industrial processes, this can improve process control and may reduce unnecessary mechanical and electrical stress.

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17. Main Applications

17.1 Large Industrial Pumps

Large pumps are one of the most natural applications for the PowerFlex 755.

The drive can regulate pump speed according to process demand.

Typical applications include:

• Water treatment.
• Cooling-water circulation.
• Industrial water systems.
• Process-water pumping.
• Large transfer pumps.
• Wastewater systems.
• Chemical process pumps.
• Mining and mineral-processing pumps.

For centrifugal pumps, variable-speed operation can provide substantial process flexibility because the pump does not necessarily need to operate continuously at full speed.

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17.2 Large Fans

Large industrial fans often require high motor power but do not necessarily require full speed at all times.

The PowerFlex 755 can regulate fan speed according to airflow requirements.

Typical applications include:

• Industrial ventilation.
• Furnace air systems.
• Exhaust systems.
• Cooling systems.
• Combustion-air fans.
• Large HVAC equipment.
• Process ventilation.

The ability to regulate speed can also reduce unnecessary mechanical stress during starting.

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17.3 Blowers

Large blowers used in industrial processes can require hundreds of horsepower.

The 20G11TD545AN0NNNNN is suitable for large blower applications where speed regulation and automation integration are required.

Examples include process-air blowers, combustion blowers, wastewater aeration blowers, and industrial air systems.

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17.4 Conveyors

Large conveyors can place significant demands on the motor during acceleration.

The drive can provide controlled acceleration and deceleration rather than applying full motor torque instantaneously.

This can help reduce mechanical shock to:

• Conveyor belts.
• Gearboxes.
• Couplings.
• Shafts.
• Bearings.
• Mechanical drive components.

For conveyor systems, drive selection should take account of conveyor length, belt mass, incline, material loading, starting torque, acceleration time, and stopping requirements.

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17.5 Compressors

Large compressors can also benefit from variable-speed operation.

The drive can regulate motor speed according to the required process operating point, provided the compressor itself is suitable for variable-frequency operation.

Typical applications include industrial air systems, process compressors, and other large rotating compressor equipment.

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17.6 Mixers and Agitators

Large mixers and agitators may require variable speed during different stages of a production process.

A PowerFlex 755 drive can provide the motor-speed control required for applications where the mixing process changes with production conditions.

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17.7 Extruders

Large extruders can require stable motor speed and continuous operation.

The drive can be integrated into an automation system where production speed, process conditions, and machine operation need to be coordinated.

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17.8 Material Handling Equipment

Large material-handling systems can require high motor power and controlled acceleration.

The drive can be used for heavy conveyors, bulk-material systems, and other high-power rotating equipment.

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18. Main Advantages

High Current Capacity

The 545 A class rating makes this drive suitable for large motors.

It is intended for applications where smaller PowerFlex drives would not provide sufficient output current.

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Large Horsepower Capability

The drive provides:

Duty	Horsepower
Light Duty	500 HP
Normal Duty	450 HP
Heavy Duty	350 HP

This gives the same drive platform considerable application flexibility.

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Flexible Industrial Architecture

The PowerFlex 755 platform is designed for engineered industrial systems rather than simple standalone speed control.

It can be integrated with PLCs, HMIs, industrial networks, feedback devices, and other automation equipment.

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Embedded Ethernet/IP

Embedded Ethernet/IP simplifies integration into Ethernet-based industrial control architectures.

This is particularly valuable in plants where many drives need to be monitored and controlled from a centralized system.

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Forced-Air Cooling

The forced-air design provides an established cooling method for large industrial drives.

When the cabinet airflow is properly engineered, it can support continuous high-power operation.

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Open-Type Construction

The open-type configuration provides flexibility for integration into custom electrical cabinets and industrial equipment lineups.

This is useful for system integrators that need to combine the drive with:

• Main disconnects.
• Protective devices.
• Control transformers.
• PLC equipment.
• Network switches.
• Contactors.
• Bus systems.
• Cable compartments.
• Auxiliary control equipment.

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Wide Application Range

The PowerFlex 755 family covers a wide range of industrial motor sizes.

This makes it possible for plants to standardize their drive architecture across different machines.

Such standardization can simplify:

• Spare-parts management.
• Engineering.
• Maintenance.
• Operator training.
• Troubleshooting.
• Drive replacement.

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19. Five Recommended Models from the Same PowerFlex 755 Series

The following models are closely related to the 20G11TD545AN0NNNNN and are particularly useful for comparing different current and horsepower requirements within the 480 VAC PowerFlex 755 family.

Model	Voltage	Normal-Duty Current	Normal-Duty HP	Light-Duty HP	Heavy-Duty HP	Frame
20G11TD430AN0NNNNN	480 VAC, 3 PH	430 A	350 HP	400 HP	300 HP	8
20G11TD485AN0NNNNN	480 VAC, 3 PH	485 A	400 HP	450 HP	350 HP	8
20G11TD545AN0NNNNN	480 VAC, 3 PH	545 A	450 HP	500 HP	350 HP	8
20G11TD617AN0NNNNN	480 VAC, 3 PH	617 A	500 HP	600 HP	400 HP	8
20G11TD710AN0NNNNN	480 VAC, 3 PH	710 A	600 HP	650 HP	450 HP	8

These models are closely related because they share the same basic PowerFlex 755 architecture and 480 VAC three-phase application class.

The primary difference is current and horsepower capacity.

For a motor near the upper limit of the 485 A model, the 545 A model provides additional capacity.

For an application requiring even greater current, the 617 A and 710 A versions can be considered.

The 430 A and 485 A versions are more appropriate when the motor current is lower.

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20. Five More Related PowerFlex 755 Models

For larger systems, the following models are also relevant when comparing the available 480 VAC high-power range.

Model	Voltage	Current Class	Light Duty	Normal Duty	Heavy Duty	Frame / Configuration
20G11TD545AN0NNNNN	480 VAC	545 A	500 HP	450 HP	350 HP	Frame 8
20G11TD617AN0NNNNN	480 VAC	617 A	600 HP	500 HP	400 HP	Frame 8
20G11TD710AN0NNNNN	480 VAC	710 A	650 HP	600 HP	450 HP	Frame 8
20G11TD740AN0NNNNN	480 VAC	740 A	700 HP	650 HP	500 HP	Frame 8
20G11TD545AN0NNNNN × 2	480 VAC	System configuration	Higher power	Higher power	Application-dependent	Frame 9 equivalent system

The larger configurations should not be treated simply as physically larger versions of the single Frame 8 unit.

When multiple power structures are used, the cabinet arrangement, current sharing, protection, bus structure, cooling, and installation requirements become part of the complete engineering design.

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21. Five Popular Allen-Bradley Models from Other Product Families

For applications where the PowerFlex 755 is too large, or where a more compact drive is preferred, the following Allen-Bradley models are useful comparison points.

Model	Series	Voltage Class	Phase	Current Class	Typical Application	Physical Class
25B-D024N114	PowerFlex 525	480 VAC class	3 PH	24 A class	General industrial machinery	Compact
25B-D6P0N114	PowerFlex 525	480 VAC class	3 PH	6 A class	Small industrial motors	Compact
20F11NC3P4JA0NNNNN	PowerFlex 753	480 VAC class	3 PH	Small / medium class	Industrial machinery	Modular
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	3 PH	77 A class	Pumps, fans, conveyors	Industrial
25C-D043N114	PowerFlex 523	480 VAC class	3 PH	43 A class	General-purpose machinery	Compact

These models should not be regarded as direct one-for-one replacements for the 20G11TD545AN0NNNNN.

The PowerFlex 523 and PowerFlex 525 families are generally intended for smaller motors.

The PowerFlex 753 is closer to the PowerFlex 755 in terms of industrial application flexibility, but the 20G11TD545AN0NNNNN is specifically intended for much higher motor power.

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22. PowerFlex 755 Versus Smaller Allen-Bradley Drive Families

Feature	PowerFlex 755	PowerFlex 753	PowerFlex 525	PowerFlex 523
Main Target	High-power industrial systems	Industrial machinery	Compact machinery	General-purpose compact machinery
Typical Power Range	Large motors	Small to large industrial motors	Small to medium motors	Small to medium motors
450 HP Application	Yes	Application-dependent	No	No
500 HP Application	Yes, depending on duty	Application-dependent	No	No
Embedded Ethernet/IP	Available	Available	Available	Available
Physical Size	Large	Small to large	Compact	Compact
Cabinet Integration	Strong	Strong	Good	Good
High-Power Pumps	Excellent	Very Good	Limited	Limited
Large Conveyors	Excellent	Very Good	Limited	Limited
Large Fans	Excellent	Very Good	Limited	Limited
Process Machinery	Excellent	Very Good	Good	Good
High-Power Industrial Control	Excellent	Very Good	Moderate	Moderate

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23. Recommended Applications by Motor Size

Motor Size	Recommended Approach	Comment
Below 50 HP	PowerFlex 523 / 525	20G11TD545 is substantially oversized
50–150 HP	PowerFlex 753 / 755	Select according to control requirements
150–250 HP	PowerFlex 753 / 755	Check current and overload requirements
250–350 HP	PowerFlex 755	Good high-power application range
Around 350 HP	PowerFlex 755	Duty selection is important
Around 400 HP	PowerFlex 755	20G11TD545 provides substantial capacity
Around 450 HP	20G11TD545AN0NNNNN	Strong Light/Normal Duty application range
Around 500 HP	Larger PowerFlex 755 configuration	Check duty rating carefully
600 HP and above	Larger PowerFlex 755 configuration	Detailed system engineering required

Horsepower should never be the only selection criterion.

Motor nameplate current is particularly important because two motors with the same nominal horsepower can have different current requirements depending on motor efficiency, voltage, design, service factor, and operating conditions.

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24. Important Selection Considerations

Motor Nameplate Current

The motor’s actual full-load current should be compared with the applicable drive current rating.

This is more reliable than selecting a drive simply by comparing horsepower numbers.

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Load Type

A centrifugal pump and a heavily loaded conveyor can have very different torque requirements even when their motors have similar horsepower ratings.

The application load curve should therefore be considered during drive selection.

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Overload Requirement

Heavy-duty machinery may require higher short-term overload capability.

If the machine experiences frequent acceleration, high starting torque, or high transient loads, the heavy-duty rating should be evaluated.

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Acceleration and Deceleration

The motor and machine inertia should be considered.

Large fans, blowers, centrifuges, and conveyors can have significant rotating inertia.

The required acceleration and stopping time may affect the drive selection and braking arrangement.

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Cooling

The cabinet must be designed to remove the heat generated by the drive.

The ventilation arrangement should be evaluated for the complete electrical system, not just the drive.

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Motor Cable

Large VFD installations require careful consideration of motor-cable length, shielding, grounding, insulation, EMC behavior, and cable routing.

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Grounding

The CM jumper configuration should be considered together with the plant grounding system.

The AN configuration uses the CM jumper removed arrangement, so replacement with another configuration should be checked carefully rather than assuming that all PowerFlex 755 versions have identical grounding characteristics.

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25. Replacement Consideration

The 20G11TD545AN0NNNNN represents an older configuration of the PowerFlex 755 platform.

When replacing an existing unit, the replacement should not be selected by current rating alone.

The following items should be compared:

Replacement Item	Check Required
Voltage	480 VAC
Phase	Three Phase
Current	Equal or greater than application requirement
Duty	LD / ND / HD requirement
Frame	Frame 8
Input Configuration	AC Input with Precharge
DC Terminals	Required / not required
EMC Filter	Required
CM Jumper	Configuration must match system requirements
Dynamic Braking	Check application
HIM	Existing control method
Ethernet/IP	Required
Cabinet Dimensions	Verify before installation
Cooling	Verify airflow requirements
Motor Cable	Verify installation
Grounding	Verify system configuration

A later JN configuration with the same basic current and horsepower class may appear very similar, but the filtering and CM-jumper configuration should still be checked during a replacement project.

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26. Product Advantages in Industrial Automation

The main advantage of the 20G11TD545AN0NNNNN is that it combines high-power motor control with the automation flexibility of the PowerFlex 755 architecture.

For large industrial plants, this combination is important because the drive is not isolated from the control system.

It can become an integrated part of the machine’s automation architecture.

This is particularly useful when a plant needs to monitor motor current, speed, faults, alarms, operating status, and other drive parameters from a central control system.

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27. Typical Industries

Industry	Typical Equipment	Suitability
Water Treatment	Large Pumps	Excellent
Wastewater	Pumps / Blowers	Excellent
Manufacturing	Conveyors / Process Machines	Excellent
Chemical Processing	Pumps / Mixers	Excellent
Mining	Conveyors / Pumps / Fans	Excellent
Metals	Fans / Pumps / Process Equipment	Excellent
Cement	Fans / Conveyors / Process Equipment	Excellent
Power Generation	Fans / Pumps / Auxiliary Systems	Excellent
HVAC	Large Fans / Pumps	Excellent
Food Processing	Large Mixers / Conveyors	Very Good
Material Handling	Heavy Conveyors	Excellent
General Industrial	Large Motors	Excellent

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28. Comparison of the Five Closest 480 VAC Models

Model	Current	LD HP	ND HP	HD HP	Relative Size
20G11TD430AN0NNNNN	430 A	400	350	300	Smaller
20G11TD485AN0NNNNN	485 A	450	400	350	Smaller
20G11TD545AN0NNNNN	545 A	500	450	350	Reference
20G11TD617AN0NNNNN	617 A	600	500	400	Larger
20G11TD710AN0NNNNN	710 A	650	600	450	Larger

This comparison makes the position of the 20G11TD545AN0NNNNN within the PowerFlex 755 family easy to understand.

It sits above the 430 A and 485 A configurations and below the 617 A and 710 A configurations.

For an application around 450 HP, the 20G11TD545AN0NNNNN is a particularly relevant model to evaluate.

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29. Quick Technical Reference

Category	20G11TD545AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Family	PowerFlex 750-Series
Product Type	High-Power AC Drive
Input Voltage	480 VAC
Phase	3 Phase
Current	545 A class
Light Duty	500 HP
Normal Duty	450 HP
Heavy Duty	350 HP
Frame	8
Cooling	Forced Air
Enclosure	Open Type / IP00
Input	AC with Precharge
DC Terminals	Yes
Communication	Embedded Ethernet/IP
EMC	Filtered
CM Jumper	Removed
Dynamic Braking	None
HIM	Blank / No HIM
Approx. Width	487 mm
Approx. Height	1984 mm without outlet ducting
Approx. Height with Ducting	2064 mm
Approx. Depth	425 mm
Weight	Configuration-dependent, kg
Main Applications	Pumps, fans, conveyors, blowers, compressors, mixers and process machinery

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30. Final Product Description

The Allen-Bradley 20G11TD545AN0NNNNN PowerFlex 755 AC Drive is a large-frame industrial variable-frequency drive designed for high-power 480 VAC three-phase motor applications.

With a 545 A current class, the drive provides approximately 500 HP Light Duty, 450 HP Normal Duty, and 350 HP Heavy Duty capacity.

Its Frame 8 construction, forced-air cooling, open-type design, embedded Ethernet/IP, AC input with precharge, DC terminals, EMC filtering, and CM-jumper-removed configuration make it suitable for engineered industrial drive systems.

The drive is particularly well suited to large pumps, fans, blowers, conveyors, compressors, mixers, extruders, process equipment, and material-handling systems.

One of the most important strengths of the PowerFlex 755 platform is its combination of high electrical capacity and industrial automation flexibility.

For a large plant, this means the drive can be used as part of a wider control architecture rather than functioning only as a standalone motor-speed controller.

The 20G11TD545AN0NNNNN is especially relevant for applications around the 450 HP normal-duty class, while its 500 HP light-duty capability gives additional flexibility for suitable variable-torque or lighter-duty applications.

For heavier-duty machines, the 350 HP heavy-duty rating should be considered carefully against the actual motor current and overload requirements.

The physical dimensions also need to be taken seriously. A Frame 8 drive is a substantial industrial component, with a reference mechanical height of approximately 1984 mm without outlet ducting and approximately 2064 mm with outlet ducting, and a reference width/depth in the vicinity of 487 mm × 425 mm.

The exact weight should be taken from the final configured mechanical or shipping documentation because the complete installation can include additional cabinet, bus, protection, control, and mounting components.

For applications that require more current, the 20G11TD617AN0NNNNN, 20G11TD710AN0NNNNN, and 20G11TD740AN0NNNNN are logical members of the same high-power family to evaluate.

For applications requiring less power, the 20G11TD430AN0NNNNN and 20G11TD485AN0NNNNN provide lower-current alternatives within the same 480 VAC PowerFlex 755 range.

Overall, the 20G11TD545AN0NNNNN is best suited to large industrial installations where high-power motor control, reliable speed regulation, automation-network integration, and flexible application control are required.

It is a drive intended for serious industrial equipment rather than small machine applications, and its selection should be based on the complete motor and load profile rather than horsepower alone.