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20G11BE900AN0NNNNN — Detailed Product Information

1. Product Overview

The 20G11BE900AN0NNNNN is a high-power AC variable frequency drive belonging to the PowerFlex 755 series. It is designed for large industrial motor-control applications where high current capacity, controlled motor speed, reliable acceleration and deceleration, and integration with industrial automation systems are required.

This model is configured for 600 VAC, three-phase power and has a rated output current of 900 A. Its published power ratings are approximately 1,000 HP for light-duty operation, 950 HP for normal-duty operation, and 800 HP for heavy-duty operation. It is a Frame 9, air-cooled, 600 mm deep MCC-style packaged drive with IP20 / Type 1 construction.

The model is equipped with embedded EtherNet/IP, AC input with DC terminals, filtering, and no dynamic braking. The AN0 configuration corresponds to the version supplied with a blank/no HIM arrangement, which distinguishes it from JN-series configurations that may include different operator-interface arrangements.

An important lifecycle point is that this exact catalog number has been discontinued, with the discontinuation date listed as June 30, 2024. A direct replacement is identified as 20G11BE900JN0NNNNN. Therefore, this model is best regarded as an existing, legacy, replacement, spare-parts, or installed-base product rather than a current new-design selection.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Sub-Series	PowerFlex 755 AC Packaged Drive
Product Type	High-Power AC Variable Frequency Drive
Model	20G11BE900AN0NNNNN
Application	Industrial Motor Speed and Torque Control
Input Voltage	600 VAC
Input Phase	3 Phase
Rated Output Current	900 A
Frame	Frame 9
Cooling	Air Cooled
Enclosure	Type 1
IP Rating	IP20
Installation Style	600 mm Deep MCC Style
Network	Embedded EtherNet/IP
Dynamic Braking	None
Filtering	EMC Filter
Operator Interface	Blank / No HIM
Input Configuration	AC Input with DC Terminals

The PowerFlex 755 series is a high-performance industrial drive platform intended for applications requiring substantially more control capability than a basic general-purpose inverter.

The 20G11BE900AN0NNNNN sits near the high-current end of the 600 V PowerFlex 755 range. Its 900 A rating places it above the 760 A and 825 A configurations and below the 980 A configuration within the same 600 V high-power group.

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3. Detailed Technical Parameters

Parameter	20G11BE900AN0NNNNN
Model	20G11BE900AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Drive Configuration	755 AC Packaged Drive
Input Voltage	600 VAC
Input Phase	3 Phase
Input Frequency	47–63 Hz class
Rated Output Current	900 A
Light-Duty Rating	1,000 HP
Normal-Duty Rating	950 HP
Heavy-Duty Rating	800 HP
Approx. Light-Duty Power	746 kW
Approx. Normal-Duty Power	708 kW
Approx. Heavy-Duty Power	597 kW
Frame	Frame 9
Cooling	Air Cooled
Airflow	Forced-air cooling
Enclosure	Type 1
Protection	IP20
Cabinet Style	600 mm Deep MCC Style
Depth	600 mm
Complete Dimensions	Exact H × W × D configuration-dependent
Weight	Approximately 1,270 kg class
Input Configuration	AC Input with DC Terminals
Filtering	EMC Filter
Common-Mode Configuration	CM jumper configuration applies to catalog option
Dynamic Braking	None
Network	Embedded EtherNet/IP
HIM	Blank / No HIM
Installation	Large Industrial Electrical System
Motor Application	Large AC Motors
Typical Power Range	Several hundred HP to approximately 1,000 HP
Duty	Light, Normal and Heavy Duty

The 900 A version is listed with 1,000 HP LD, 950 HP ND and 800 HP HD ratings at 600 VAC, three phase, Frame 9. The same catalog group is described as an air-cooled, 600 mm deep MCC-style PowerFlex 755 drive with embedded EtherNet/IP and DC terminals.

Dimension and Weight Explanation

The 600 mm dimension refers to the specified MCC-style enclosure depth. It should not be interpreted as the complete external envelope of the equipment.

For engineering purposes, the final height, width, clearance requirements, lifting dimensions, and center of gravity should be taken from the mechanical drawing for the exact packaged configuration.

The equipment belongs to the very-large Frame 9 class. A practical planning value for the packaged assembly is approximately 1,270 kg, but the exact shipping or installed weight should be confirmed from the equipment-specific documentation and nameplate before transportation, lifting, or floor-loading calculations.

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4. Electrical Performance

The most important electrical characteristic of this model is its 900 A output-current capability.

At 600 VAC, a 900 A industrial drive is intended for very large three-phase motors and equipment.

The published duty ratings can be summarized as follows:

Duty	Power Rating	Approx. kW Equivalent
Light Duty	1,000 HP	746 kW
Normal Duty	950 HP	708 kW
Heavy Duty	800 HP	597 kW

The distinction between these ratings is important.

A motor that operates under relatively stable loading conditions may be evaluated using the normal-duty rating.

A machine with frequent overloads, high starting torque, or demanding acceleration characteristics may need to be evaluated using the heavy-duty rating.

Light-duty applications can utilize the higher light-duty horsepower rating when the load profile is suitable.

The correct selection should always be based on motor nameplate current and the actual load profile rather than horsepower alone.

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5. Product Introduction

The 20G11BE900AN0NNNNN is designed to control the speed and torque of large AC motors used in industrial machinery.

A conventional fixed-speed motor receives power at the available line frequency and normally operates around its designed speed.

A variable frequency drive changes the electrical frequency and voltage supplied to the motor, allowing the motor to operate at different speeds.

For large industrial equipment, this capability can provide several practical advantages.

The machine can accelerate gradually instead of applying full mechanical force immediately.

The motor can operate at reduced speed when full production capacity is not required.

The control system can change motor speed according to process conditions.

The drive can provide operating information and fault information to a plant automation system.

These characteristics make the PowerFlex 755 platform suitable for large pumps, fans, conveyors, compressors, process machinery, material-handling equipment, and other heavy industrial applications.

The AN0 version is particularly straightforward from an operator-interface perspective because the catalog configuration is listed with Blank / No HIM. This means that local operator interaction is generally handled through the surrounding control system or by adding the appropriate interface arrangement rather than relying on a factory-supplied local HIM.

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6. Main Product Functions

6.1 Variable-Speed Motor Control

The primary purpose of the drive is to provide controlled variable-speed operation for large AC motors.

Instead of operating the motor continuously at a fixed speed, the drive can adjust its output according to the required process conditions.

This is particularly useful for equipment whose required output changes throughout the day.

For example, a pump may need full flow during one stage of a process and considerably less flow during another.

A large ventilation fan may operate at different speeds depending on temperature or production conditions.

A conveyor may require different speeds depending on material flow.

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6.2 Controlled Motor Acceleration

Large motors can draw significant current and create considerable mechanical stress during startup.

Using controlled acceleration, the drive can gradually bring the motor from zero speed toward the required operating speed.

This can reduce mechanical shock on:

• Gearboxes
• Couplings
• Shafts
• Belts
• Chains
• Conveyor systems
• Pump assemblies
• Fan assemblies

Controlled acceleration can also make the entire production process smoother.

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6.3 Controlled Deceleration

The drive can also manage the motor’s deceleration.

The exact stopping behavior depends on motor inertia, load characteristics, programmed parameters, and whether the application requires an external braking solution.

This particular AN0 configuration does not include dynamic braking.

For applications involving very high inertia or rapid stopping requirements, the braking strategy should therefore be evaluated during system design.

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7. Product Applications

7.1 Large Pumps

Large pumps are one of the most common applications for high-power variable frequency drives.

Industrial pumping systems rarely require exactly the same flow rate at every moment.

The drive allows pump speed to be adjusted according to actual process requirements.

Typical applications include:

• Water treatment
• Wastewater treatment
• Cooling-water circulation
• Industrial process water
• Chemical processing
• Mining water systems
• Large-scale irrigation
• Process-fluid transfer

For centrifugal pumps, variable-speed control can also provide significant energy-saving potential because pump power decreases rapidly as speed is reduced.

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7.2 Large Fans and Blowers

Industrial fans can consume very large amounts of electrical power when operated continuously at full speed.

A variable frequency drive can adjust fan speed according to actual airflow requirements.

Typical applications include:

• Furnace ventilation
• Industrial exhaust
• Cooling systems
• Dust collection
• Forced-draft fans
• Induced-draft fans
• Large ventilation systems
• Process-air systems

The 900 A current class makes this model appropriate for very large fan motors.

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7.3 Conveyor Systems

Heavy-duty conveyors frequently require high-power motors.

Examples include conveyors used in:

• Mining
• Cement production
• Steel production
• Ports
• Warehouses
• Bulk-material handling
• Aggregate processing

Controlled acceleration is particularly valuable on conveyors because a heavily loaded belt can have substantial mechanical inertia.

Starting the conveyor too aggressively can place unnecessary stress on the belt, gearbox, coupling, and drive train.

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7.4 Compressors

Large industrial compressors can also require several hundred horsepower or more.

A variable-speed drive can adjust compressor speed according to process requirements.

This can be useful where demand changes substantially during normal operation.

The final drive selection should take compressor characteristics, motor current, starting requirements, overload requirements, and manufacturer recommendations into consideration.

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7.5 Crushers and Mills

Crushers, grinders, mills, mixers, and similar heavy machines can require considerable motor torque.

A large industrial drive provides a controlled method of managing motor speed and torque.

For such applications, the heavy-duty rating is especially important.

A machine that repeatedly experiences high transient loads should not be evaluated solely on its average operating horsepower.

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7.6 Mining Applications

Mining operations are particularly well suited to large variable frequency drives.

Potential equipment includes:

• Ore conveyors
• Crushers
• Large dewatering pumps
• Ventilation fans
• Processing machinery
• Material-handling equipment

The 900 A / 600 VAC configuration is suitable for large motor systems where significant power and controlled operation are required.

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8. Product Advantages

8.1 900 A High-Current Capability

The biggest advantage of the model is its 900 A output-current rating.

This gives it enough capacity for very large industrial motors.

It is not intended for small machinery or ordinary building equipment.

Instead, it is designed for large-scale industrial motor-control systems.

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8.2 Up to 1,000 HP Light-Duty Capability

The published 1,000 HP light-duty rating makes the model suitable for very large motor applications.

The 950 HP normal-duty and 800 HP heavy-duty ratings provide additional selection references for more demanding operating conditions.

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8.3 600 VAC Industrial Configuration

The 600 VAC input class is particularly useful for high-power installations.

At a given power level, increasing system voltage can help manage current requirements at the upstream electrical-distribution level.

The 600 V class is therefore common in large industrial electrical systems.

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8.4 Embedded EtherNet/IP

Embedded EtherNet/IP makes the drive suitable for integration into an industrial automation network.

The control system can use the network to exchange information such as:

• Start commands
• Stop commands
• Speed references
• Actual speed
• Output current
• Drive status
• Fault conditions
• Alarms
• Diagnostic information

This can reduce the amount of separate hardwired control wiring required for many applications.

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8.5 Air-Cooled Construction

The drive uses forced-air cooling.

This is a practical approach for high-power industrial drives because significant heat is produced by the power electronics during operation.

Proper ventilation and airflow are therefore important parts of installation design.

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8.6 600 mm MCC-Style Construction

The 600 mm deep MCC-style configuration is designed for integration into large industrial electrical installations.

This arrangement can be convenient where multiple drives and electrical components are organized in a structured MCC or switchgear environment.

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8.7 EMC Filtering

The catalog configuration is identified with an EMC filter.

This is useful in industrial environments where electrical noise and electromagnetic compatibility need to be managed.

High-power drives can coexist with PLCs, instrumentation, communication networks, sensors, and other sensitive equipment, so system-level EMC planning remains important.

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9. Important Lifecycle Consideration

The exact 20G11BE900AN0NNNNN catalog number is listed as discontinued, with a discontinuation date of June 30, 2024.

A direct replacement is identified as 20G11BE900JN0NNNNN.

This distinction is important when preparing a new project.

For an existing machine, the AN0 version can still be relevant because the installed equipment may require maintenance, repair, refurbishment, or replacement.

For a new machine design, the replacement catalog number should generally be evaluated instead of assuming that the discontinued catalog number remains available as new equipment.

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10. Five Same-Series or Closely Related Models

The following models are strong comparison choices because they are in the same PowerFlex 755 high-power family and share the 600 V / large-frame architecture.

Recommended Model	Series	Voltage	Current	LD Rating	ND Rating	HD Rating	Dimensions	Weight (kg)
20G11BE760AN0NNNNN	PowerFlex 755	600 VAC	760 A	900 HP	800 HP	700 HP	600 mm depth, Frame 9	Approx. 1,270 kg class
20G11BE825AN0NNNNN	PowerFlex 755	600 VAC	825 A	950 HP	900 HP	750 HP	600 mm depth, Frame 9	Approx. 1,270 kg class
20G11BE900JN0NNNNN	PowerFlex 755	600 VAC	900 A	1,000 HP	950 HP	800 HP	600 mm depth, Frame 9	Approx. 1,270 kg class
20G11BE980AN0NNNNN	PowerFlex 755	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	600 mm depth, Frame 9	Configuration dependent
20G11BE980JN0NNNNN	PowerFlex 755	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	600 mm depth, Frame 9	Configuration dependent

The 760 A, 825 A, 900 A, and 980 A models form a particularly useful progression for selecting a drive based on motor current. The published ratings identify 760 A as 900/800/700 HP, 825 A as 950/900/750 HP, 900 A as 1,000/950/800 HP, and 980 A as 1,100/1,000/900 HP for light, normal, and heavy duty respectively.

The 20G11BE900JN0NNNNN deserves special attention because it is identified as the direct replacement for the discontinued AN0 model.

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11. Comparison of the 760 A, 825 A, 900 A and 980 A Versions

Model	Current	Light Duty	Normal Duty	Heavy Duty	Typical Selection Position
20G11BE760AN0NNNNN	760 A	900 HP	800 HP	700 HP	When 900 A is more capacity than required
20G11BE825AN0NNNNN	825 A	950 HP	900 HP	750 HP	Large motor applications below the 900 A class
20G11BE900AN0NNNNN	900 A	1,000 HP	950 HP	800 HP	Target model
20G11BE900JN0NNNNN	900 A	1,000 HP	950 HP	800 HP	Direct replacement configuration
20G11BE980AN0NNNNN	980 A	1,100 HP	1,000 HP	900 HP	When additional capacity is required

This progression is useful because it shows how the drive can be selected according to actual motor current rather than simply choosing the largest available model.

For example, if the motor’s operating current is comfortably below the 760 A range, selecting a 900 A drive may be unnecessary.

If the motor approaches the 900 A class and the load is demanding, the 900 A configuration may be appropriate.

If the process requires additional current headroom, the 980 A version becomes a logical comparison.

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12. Five Popular Models Under the Same Brand

The following models provide a broader selection across the same brand’s industrial variable-frequency-drive range.

Model	Series	Voltage Class	Current / Power Class	Main Application	Dimensions	Weight (kg)
25B-D024N104	PowerFlex 525	480 VAC class	Approx. 24 A	Small and medium machinery	Compact frame; frame dependent	Approx. 4–8 kg
20F11NC072JA0NNNNN	PowerFlex 753	480 VAC class	Approx. 72 A	General industrial machinery	Frame dependent	Approx. 20–40 kg
20G11NC072JA0NNNNN	PowerFlex 755	480 VAC class	Approx. 72 A	High-performance industrial machinery	Frame dependent	Approx. 20–40 kg
20G11BE825AN0NNNNN	PowerFlex 755	600 VAC	825 A / 950 HP LD	Large industrial equipment	600 mm depth, Frame 9	Approx. 1,270 kg class
20G11BE900AN0NNNNN	PowerFlex 755	600 VAC	900 A / 1,000 HP LD	Very large industrial equipment	600 mm depth, Frame 9	Approx. 1,270 kg class

The smaller PowerFlex 525 and PowerFlex 753/755 configurations are intended for substantially lower motor-power ranges.

They should therefore be viewed as alternatives for different machine sizes rather than direct replacements for the 900 A model.

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13. Typical Industries and Equipment

Industry	Equipment	Application of the Drive
Mining	Crushers	Controlled motor speed and torque
Mining	Conveyors	Smooth starting and speed adjustment
Mining	Dewatering Pumps	Flow adjustment
Cement	Large Fans	Airflow control
Cement	Conveyors	Controlled acceleration
Steel	Process Fans	Variable-speed operation
Steel	Pumps	Process-flow control
Water Treatment	Large Pumps	Flow and pressure management
Wastewater	Blowers	Airflow control
Chemical Processing	Pumps	Process control
Oil & Gas	Compressors	Speed regulation
Manufacturing	Large Process Machines	Motor-speed control
Bulk Handling	Conveyors	Controlled acceleration
Power Generation	Auxiliary Pumps and Fans	Process regulation

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14. Energy Management Benefits

For suitable applications, one of the most attractive benefits of a variable frequency drive is the ability to reduce motor speed when full output is unnecessary.

This is particularly valuable for centrifugal pumps and fans.

Running a large motor continuously at full speed can consume substantial electrical power.

If the process only requires partial flow or airflow, reducing motor speed can reduce energy consumption.

For a motor in the 800–1,000 HP range, even a relatively small improvement in operating efficiency can have a meaningful effect on annual electricity consumption.

The actual savings depend on:

• Motor efficiency
• Load characteristics
• Operating hours
• Required flow
• Required pressure
• Mechanical losses
• Process control strategy
• Actual speed profile

Therefore, energy savings should be calculated from the actual machine operating curve rather than estimated from the drive rating alone.

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15. Installation Considerations

The physical size and weight of this model are important.

A drive in the Frame 9 / 600 mm MCC-style class is not a lightweight panel component.

The following items should be considered before installation:

Installation Area	Requirement
Floor Loading	Confirm the supporting structure can handle approximately 1,270 kg class equipment
Transportation	Verify route, doorway, floor, and turning clearance
Lifting	Use appropriate lifting equipment
Cabinet Clearance	Provide sufficient service space
Ventilation	Maintain adequate airflow
Ambient Temperature	Keep within applicable operating limits
Cable Routing	Plan high-current input and motor cables carefully
Grounding	Establish appropriate protective grounding
EMC	Consider motor cable routing and noise management
Maintenance	Provide access to fans and electrical components
Anchoring	Follow the applicable mechanical installation requirements
Heat Dissipation	Account for drive losses in room HVAC calculations

The 600 mm depth is especially relevant to cabinet and electrical-room planning.

However, it should not be used as the complete product size.

The actual height and width should be confirmed using the applicable mechanical drawing for the exact configuration.

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16. Maintenance Considerations

A high-power drive requires a more structured maintenance approach than a small machine inverter.

Cooling System

The cooling system should be kept clean and unobstructed.

Restricted airflow can cause the drive’s internal temperature to rise.

Fans should be inspected for abnormal noise, vibration, reduced airflow, and signs of wear.

Electrical Connections

High-current electrical connections deserve particular attention.

Loose or degraded connections can create localized heating, which can eventually result in equipment damage.

Inspection intervals should follow the applicable maintenance program.

Environmental Conditions

The drive should be protected from excessive dust, moisture, corrosive substances, and other contaminants.

A clean electrical environment can significantly improve long-term reliability.

Fault History

Drive fault history can provide useful information about developing problems.

Repeated over-temperature, over-current, DC-bus, or communication faults should be investigated rather than repeatedly reset without identifying the underlying cause.

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17. Advantages of the 20G11BE900AN0NNNNN in Practical Applications

The practical advantages of this model can be summarized in several areas.

First, its 900 A current capability provides sufficient capacity for very large motors.

Second, the 1,000 HP light-duty rating allows it to cover a substantial motor-power range.

Third, the 950 HP normal-duty rating makes it suitable for large continuous industrial loads.

Fourth, the 800 HP heavy-duty rating provides a useful reference for applications requiring greater overload capability.

Fifth, the 600 VAC three-phase configuration is appropriate for high-power industrial electrical systems.

Sixth, the embedded EtherNet/IP capability makes integration with plant automation easier.

Seventh, the air-cooled Frame 9 construction is designed for large industrial installations.

Finally, the 600 mm MCC-style arrangement allows the drive to be incorporated into larger electrical distribution and control systems.

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18. Target Model Versus Direct Replacement

Item	20G11BE900AN0NNNNN	20G11BE900JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	600 VAC	600 VAC
Current	900 A	900 A
Light Duty	1,000 HP	1,000 HP class
Normal Duty	950 HP	950 HP class
Heavy Duty	800 HP	800 HP class
Frame	Frame 9	Frame 9 class
Installation	600 mm MCC style	Related packaged configuration
Status	Discontinued	Replacement model
Main Reason to Select	Existing installed equipment / legacy replacement	Current replacement consideration

The most important point is that the 20G11BE900JN0NNNNN is identified as the direct replacement for the discontinued 20G11BE900AN0NNNNN.

However, in an actual replacement project, the complete catalog number, enclosure arrangement, operator interface, wiring, control architecture, mounting arrangement, and application parameters should all be checked before substitution.

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19. Recommended Selection Strategy

For an existing installation that already uses 20G11BE900AN0NNNNN, the first comparison should be the 20G11BE900JN0NNNNN.

For a new application with a motor below the 900 A requirement, the 760 A and 825 A versions may be more appropriate.

For a motor requiring more current capacity, the 980 A version is a logical next step.

The selection should always begin with the motor nameplate rather than the desired horsepower alone.

The following information should be collected:

1. Motor rated voltage
2. Motor rated current
3. Motor rated power
4. Motor base frequency
5. Motor speed
6. Load type
7. Required acceleration time
8. Required deceleration time
9. Overload requirement
10. Operating environment
11. Required enclosure
12. Communication requirements
13. Braking requirements
14. Cabinet dimensions
15. Available floor loading

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20. Overall Evaluation

The 20G11BE900AN0NNNNN is a very large, high-power industrial AC variable frequency drive in the PowerFlex 755 series.

Its defining characteristics are its 900 A current rating, 600 VAC three-phase input class, 1,000 HP light-duty capacity, 950 HP normal-duty capacity, 800 HP heavy-duty capacity, Frame 9 construction, air cooling, 600 mm MCC-style enclosure depth, IP20 / Type 1 protection, embedded EtherNet/IP, EMC filtering, and AC input with DC terminals.

Its strongest applications are large pumps, fans, conveyors, compressors, crushers, mining machinery, process equipment, material-handling systems, and other industrial machines requiring controlled operation of very large AC motors.

The main technical advantage is the combination of high current capacity and flexible industrial motor control.

The model is especially attractive where a motor is operating in the several-hundred-horsepower range and where speed control, smooth acceleration, process adjustment, and industrial-network integration are important.

The large physical size and approximately 1,270 kg class weight should be taken seriously during installation planning. Floor loading, transportation, lifting, ventilation, service clearance, and cable routing all need to be considered.

There is also an important product-lifecycle consideration: the exact 20G11BE900AN0NNNNN catalog number is discontinued, so for a new project the replacement configuration should be evaluated rather than assuming that the legacy AN0 model remains available as a new product.

For an existing system, however, this catalog number remains highly relevant for identifying installed equipment, maintenance requirements, spare-drive planning, repair, refurbishment, and replacement engineering.

In practical terms, the 20G11BE900AN0NNNNN is best characterized as a high-current, high-power, large-frame industrial VFD intended for very large motor-driven equipment, with the PowerFlex 755 architecture providing the control, communication, and application flexibility expected in demanding industrial installations.