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1. Product Overview

The Allen-Bradley 20G11BE595AN0NNNNN is a high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications.

This model belongs to the high-power section of the PowerFlex 755 family and is designed for 600 VAC, three-phase electrical systems. It has a rated output current of 595 A and is specified for approximately 700 HP Light Duty, 600 HP Normal Duty and 500 HP Heavy Duty applications.

The drive uses a Frame 9 construction and a 600 mm deep MCC-style package. It is an air-cooled, Type 1 / IP20 industrial drive with embedded Ethernet/IP communication.

The catalog configuration includes AC input with DC terminals, EMC filtering, CM jumper removed, no dynamic-braking transistor and no local HIM.

The model is particularly suitable for large pumps, fans, blowers, conveyors, material-handling equipment and other industrial machinery requiring high-power variable-speed motor control.

The original 20G11BE595AN0NNNNN configuration has been discontinued, with the corresponding replacement configuration identified as 20G11BE595JN0NNNNN. This distinction is important when the drive is being specified for a new project or used as a replacement in an existing installation.

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2. Brand and Product Family

Item	Specification
Model	20G11BE595AN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Series Group	PowerFlex 750-Series
Product Type	High-Power AC Variable Frequency Drive
Product Description	PowerFlex 755 Air-Cooled AC Drive
Voltage Class	600 VAC
Phase	3 Phase
Output Current	595 A
Light-Duty Rating	700 HP
Normal-Duty Rating	600 HP
Heavy-Duty Rating	500 HP
Frame	9
Cooling	Air Cooled / Forced Air
Enclosure	Type 1
Protection	IP20
Package	600 mm Deep MCC Style
Input Configuration	AC Input with Precharge / DC Terminals
Dynamic Braking	None
EMC Filter	Yes
CM Jumper	Removed
HIM	None / Blank
Communication	Embedded Ethernet/IP
Installation	Indoor Industrial / MCC
Product Status	Discontinued
Direct Replacement	20G11BE595JN0NNNNN

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3. Main Technical Parameters

Technical Parameter	Specification
Model	20G11BE595AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Drive Type	AC Variable Frequency Drive
Input Voltage	600 VAC
Input Phase	3 Phase
Output Current	595 A
Light-Duty Rating	700 HP
Normal-Duty Rating	600 HP
Heavy-Duty Rating	500 HP
Approx. LD Power	522 kW
Approx. ND Power	448 kW
Approx. HD Power	373 kW
Frame	9
Cooling	Forced Air
Enclosure	Type 1
Protection Rating	IP20
Package Style	600 mm Deep MCC Style
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Approx. Weight	About 1,246 kg
Input Arrangement	AC Input with Precharge
DC Terminals	Yes
Dynamic Braking	None
Internal Braking Transistor	None
EMC Filter	Yes
CM Jumper	Removed
HIM	None / Blank
Ethernet/IP	Embedded
Local Keypad	None
Cooling Method	Air Cooled / Forced Air
Typical Installation	Indoor Electrical Room / MCC
Typical Application	Pumps, Fans, Blowers, Conveyors, Process Equipment
Product Status	Discontinued
Direct Replacement	20G11BE595JN0NNNNN

The horsepower-to-kilowatt figures above are approximate conversions using approximately 0.746 kW per horsepower. Actual motor selection should always be based on motor nameplate current, voltage, duty and application requirements rather than horsepower conversion alone.

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4. Electrical Rating

The 595 A output rating is the most important electrical characteristic of this model.

With a 600 VAC three-phase system, the drive is designed for large industrial motors rather than small machine applications.

Its duty ratings are:

Duty	Rating	Approx. kW
Light Duty	700 HP	522 kW
Normal Duty	600 HP	448 kW
Heavy Duty	500 HP	373 kW

The three duty categories are useful because industrial loads do not all require the same overload capability.

A centrifugal pump or fan may operate primarily as a variable-torque load, while a conveyor or heavy material-handling machine may require greater starting and overload capability.

For that reason, a 500 HP Heavy-Duty rating does not mean the drive is simply a smaller version of a 700 HP Light-Duty drive.

The correct rating must be selected according to the actual load profile.

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5. 600 VAC Three-Phase Configuration

The 600 VAC three-phase configuration is intended for industrial power systems operating in the 600 VAC class.

This voltage class is commonly used for large motor installations because higher operating voltage can help control current requirements compared with lower-voltage systems.

The complete motor system still needs to be evaluated for:

• Motor rated voltage
• Motor full-load current
• Motor frequency
• Motor power factor
• Motor efficiency
• Motor starting torque
• Motor acceleration time
• Load inertia
• Overload requirements
• Cable length
• Grounding arrangement

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6. 595 Amp Output Capability

The 595 A output capacity places this drive firmly in the large-industrial-drive category.

This current capability is suitable for substantial motors used in applications such as:

• Large water pumps
• Industrial pumps
• Cooling-water systems
• Large fans
• Blowers
• Conveyors
• Mining equipment
• Material handling
• Cement equipment
• Process machinery

The 595 A rating should not be interpreted as a universal motor size.

The actual motor nameplate current should be compared with the drive’s continuous and overload capabilities.

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7. Frame 9 Construction

The 20G11BE595AN0NNNNN uses Frame 9 construction.

Frame 9 is a large physical platform designed to accommodate the power components, cooling system and electrical connections required for high-power operation.

Compared with compact drives, this type of construction requires considerably more attention to:

• Cabinet arrangement
• Cable routing
• Airflow
• Maintenance access
• Equipment transportation
• Floor loading
• Electrical clearance
• Heat dissipation

The frame designation should therefore be considered a mechanical and thermal characteristic as well as an electrical classification.

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8. 600 mm Deep MCC-Style Package

One of the key mechanical characteristics of the model is its 600 mm deep MCC-style package.

Mechanical Parameter	Specification
Model	20G11BE595AN0NNNNN
Frame	9
Package Style	MCC Style
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Enclosure	Type 1
Protection	IP20
Cooling	Forced Air
Installation	Indoor Industrial
Cable Access	Required
Maintenance Clearance	Required
Ventilation Space	Required
Floor Loading	Must Be Evaluated

The 600 mm depth should not be considered the complete installation footprint.

Large power cables need sufficient bending and termination space.

The final cabinet dimensions should therefore be taken from the mechanical documentation for the actual installation configuration.

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9. Dimensions

The drive is designed as a large MCC-style package.

The available general mechanical information can be summarized as follows:

Dimension	Specification
Model	20G11BE595AN0NNNNN
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Overall Footprint	Configuration Dependent
Cable Bending Space	Required
Service Access	Required
Front Clearance	Required
Cooling Clearance	Required
Installation Type	MCC / Indoor Industrial

The 600 mm depth is the principal package dimension associated with this configuration.

Height and width can vary depending on the complete packaged arrangement.

For an engineering drawing, transportation plan or cabinet layout, the configuration-specific dimensional drawing should be used instead of relying on a generic Frame 9 dimension.

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10. Weight

This is a substantial industrial drive.

A listed equipment weight of approximately 1,246.47 kg is associated with this model.

For practical engineering purposes, the equipment can therefore be treated as approximately 1.25 metric tons.

Weight Parameter	Specification
Model	20G11BE595AN0NNNNN
Approx. Equipment Weight	1,246 kg
Approx. Metric Tons	1.25 metric tons
Shipping Weight	Configuration / Packaging Dependent
Floor Loading	Must Be Evaluated
Transportation	Heavy Industrial Equipment
Lifting	Heavy-Duty Equipment Required
Installation	Professional Handling Recommended

The actual shipping weight can be higher than the equipment-only weight because of packaging, accessories and transportation materials.

For structural calculations and lifting operations, the actual shipping documentation should be used.

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11. Air-Cooled Design

The 20G11BE595AN0NNNNN uses air cooling / forced-air cooling.

High-power switching devices generate considerable heat during normal operation.

The cooling system moves air through the power section to remove heat and maintain acceptable operating temperatures.

The electrical room should therefore provide:

• Adequate ventilation
• Controlled ambient temperature
• Clean cooling air
• Sufficient airflow
• Adequate heat-removal capacity
• Proper spacing between equipment

The cooling system should be inspected periodically because blocked airflow and accumulated dust can increase operating temperature.

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12. Type 1 / IP20 Protection

The drive is configured for Type 1 / IP20 protection.

This is intended primarily for indoor industrial environments.

It is not a weatherproof or outdoor enclosure.

The installation should protect the drive from:

• Rain
• Water spray
• Condensation
• Direct moisture
• Excessive dust
• Conductive contamination
• Corrosive gases
• Chemical contamination
• Extreme environmental conditions

The surrounding electrical room or enclosure is therefore an important part of the overall protection system.

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13. AC Input With Precharge

The model uses an AC input with precharge configuration.

The precharge system manages the initial charging of the DC bus when the drive is energized.

A simplified power flow is:

600 VAC Three-Phase Input

↓

Input / Precharge Section

↓

DC Bus

↓

Power Inverter

↓

Variable-Frequency AC Output

↓

Large Industrial Motor

The precharge arrangement is especially important in large drives because the DC bus contains substantial stored energy.

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14. DC Terminals

The configuration includes DC terminals.

DC-bus access is useful in certain industrial system architectures and can also be relevant when considering braking or common DC-bus arrangements.

However, DC terminals should never be treated as ordinary low-voltage terminals.

The DC bus can retain dangerous energy after incoming power has been disconnected.

Proper electrical isolation, discharge time and safety procedures are essential during maintenance.

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15. EMC Filter

The drive is supplied with an EMC-filtered configuration.

EMC management is important because variable-frequency drives use high-speed switching to generate the required motor waveform.

This switching can create electrical noise.

The internal filtering contributes to conducted-noise management, while the complete installation must also address:

• Grounding
• Shielding
• Cable routing
• Motor cable selection
• Bonding
• Cabinet construction
• Signal-cable separation
• Motor-frame grounding

A good EMC result depends on the entire installation rather than the drive alone.

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16. CM Jumper Removed

The 20G11BE595AN0NNNNN is configured with the CM jumper removed.

This is a significant configuration detail.

Common-mode configuration can affect the electrical relationship between the drive, motor, grounding system and EMC characteristics.

It is therefore important to preserve the intended configuration when replacing an existing drive.

Two drives with the same voltage and current rating can still have different catalog configurations.

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17. No Dynamic Braking

This model is specified with no dynamic braking.

Parameter	Specification
Model	20G11BE595AN0NNNNN
Dynamic Braking	None
Internal Braking Transistor	None
High-Inertia Load	Application Evaluation Required
Rapid Deceleration	Additional Braking Solution May Be Required
Regenerative Load	Additional Engineering Required

This is particularly important for high-inertia machines.

If the motor needs to decelerate rapidly, mechanical energy can return toward the drive.

Depending on the application, the system may require:

• Longer deceleration time
• External braking equipment
• Mechanical braking
• Regenerative equipment

The correct solution depends on the load inertia and stopping requirements.

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18. Blank Configuration — No HIM

The model is supplied as a Blank configuration with no HIM.

HIM means Human Interface Module.

The absence of a local keypad is not necessarily a disadvantage.

For large industrial installations, the drive is often located inside an electrical room where local operator access is not required.

Control can instead be provided through:

• PLC
• HMI
• SCADA
• DCS
• Ethernet/IP
• Plant control system

This makes the no-HIM configuration particularly suitable for centralized automation.

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19. Embedded Ethernet/IP

Embedded Ethernet/IP communication is one of the major advantages of the PowerFlex 755 platform.

The drive can exchange operating information with an industrial control system.

Typical information includes:

• Start command
• Stop command
• Speed reference
• Actual speed
• Output current
• Drive status
• Fault information
• Alarm information
• Diagnostic information
• Parameter information

This makes the drive suitable for integrated plant automation.

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20. Pump Applications

The 20G11BE595AN0NNNNN is a strong candidate for large pump applications.

Potential applications include:

• Water-transfer pumps
• Cooling-water pumps
• Raw-water pumps
• Industrial circulation pumps
• Wastewater pumps
• Mine dewatering pumps
• Process pumps
• Large booster pumps

Variable-speed operation allows the pump to respond to process demand.

For example, instead of continuously operating at full speed, the drive can reduce motor speed when the required flow decreases.

This can provide significant energy-saving potential in suitable variable-torque systems.

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21. Fan Applications

Large fans can require several hundred horsepower.

The drive can be used for:

• Industrial exhaust fans
• Cooling fans
• Mine ventilation
• Process ventilation
• Dust-collection fans
• Furnace ventilation
• Large air-handling equipment

Fan applications can benefit from variable-speed operation because airflow can be adjusted according to actual process demand.

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22. Blower Applications

Large industrial blowers are another suitable application.

Examples include:

• Wastewater aeration
• Industrial air systems
• Process-air blowers
• Pneumatic conveying
• Combustion air
• Drying systems
• Chemical process ventilation

The 595 A output capability gives the drive enough capacity for large blower motors.

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23. Conveyor Applications

Large conveyors often have substantial inertia.

Controlled acceleration can reduce mechanical stress during startup.

The drive can gradually increase motor speed rather than applying an abrupt full-speed command.

This can reduce mechanical shock on:

• Belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Conveyor structures

For especially heavy conveyors, the Heavy-Duty rating should be checked carefully.

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24. Mining Applications

Mining facilities frequently require large motors for material movement and water management.

Potential applications include:

• Mine dewatering
• Ventilation
• Conveyors
• Bulk material handling
• Processing systems
• Crushing auxiliaries
• Pumping systems

The PowerFlex 755 platform can provide centralized control and diagnostic information for these large motor systems.

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25. Cement Industry Applications

Cement plants use many high-power motors.

The drive can be considered for:

• Large process fans
• Exhaust systems
• Blowers
• Cooling systems
• Material conveyors
• Large pumps
• Dust-collection systems
• Auxiliary process machinery

The ability to integrate the drive into a plant automation system is particularly useful in large cement facilities.

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26. Steel and Metal Processing Applications

Large steel and metal-processing plants can use high-power drives for:

• Cooling-water pumps
• Large ventilation systems
• Process fans
• Blowers
• Material handling
• Conveyors
• Auxiliary machinery

The 595 A capacity gives the model a considerable advantage over medium-power drives when large motors are involved.

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27. Water and Wastewater Applications

The drive can be used for large water and wastewater equipment.

Typical applications include:

• Intake pumps
• Transfer pumps
• Distribution pumps
• Wastewater pumps
• Aeration blowers
• Flood-control pumps
• Industrial water circulation

These systems often operate continuously, making reliability, thermal management and controlled motor operation important considerations.

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28. Main Product Advantages

28.1 High Current Capacity

The 595 A output rating makes the drive suitable for large industrial motors.

It is substantially more capable than compact VFD products intended for smaller machines.

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28.2 High Horsepower Capability

The model supports:

• 700 HP Light Duty
• 600 HP Normal Duty
• 500 HP Heavy Duty

This provides flexibility for different industrial load types.

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28.3 600 VAC Operation

The 600 VAC voltage class makes the drive suitable for large industrial electrical systems.

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28.4 PowerFlex 755 Platform

The PowerFlex 755 architecture provides a broad set of industrial motor-control functions and communication capabilities.

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28.5 Embedded Ethernet/IP

The integrated communication capability makes it easier to incorporate the drive into a modern automation network.

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28.6 No-HIM Configuration

The no-HIM configuration is useful for centralized control applications.

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28.7 Air-Cooled Construction

Air cooling provides a practical approach to thermal management for large indoor industrial installations.

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28.8 EMC Filtering

The filtered configuration supports electrical-noise management when combined with proper installation practices.

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28.9 MCC-Style Construction

The 600 mm deep MCC-style package is appropriate for centralized industrial electrical installations.

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28.10 High-Power Motor Control

The combination of 595 A output current and up to 700 HP Light-Duty capacity makes the drive suitable for substantial industrial motors.

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29. Energy-Saving Potential

Variable-speed operation can provide considerable energy-saving potential in appropriate applications.

This is especially relevant to:

• Pumps
• Fans
• Blowers

In variable-torque systems, reducing motor speed can reduce power consumption significantly.

For example, if a pump does not need to operate at full capacity, reducing motor speed can lower energy consumption while maintaining the required process flow.

Actual savings depend on:

• Motor efficiency
• Pump efficiency
• Fan characteristics
• System resistance
• Operating hours
• Load profile
• Control strategy

The energy-saving potential should therefore be calculated from actual operating conditions.

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30. Centralized Control Architecture

A typical system can be organized as:

Plant PLC / Control System

↓

Ethernet/IP Network

↓

PowerFlex 755 Drive

↓

595 A-Class Motor

↓

Pump / Fan / Conveyor / Blower

This architecture reduces the need for operators to physically access the drive.

It also makes centralized monitoring easier.

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31. Maintenance Considerations

A drive of this size requires regular inspection.

Recommended inspection areas include:

• Cooling fans
• Airflow
• Power terminals
• Electrical connections
• Grounding
• Cable terminations
• Cabinet cleanliness
• Ambient temperature
• Fault history
• Alarm history
• Communication status
• Motor condition
• Insulation condition

The cooling system deserves particular attention.

Dust buildup can restrict airflow and increase the operating temperature of the power section.

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32. Thermal Management

Large VFDs produce significant heat.

This becomes particularly important when several large drives are installed in one electrical room.

The room should be designed with sufficient:

• HVAC capacity
• Ventilation
• Air circulation
• Cooling capacity
• Equipment spacing

The total heat load should be considered for the entire electrical room.

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33. Mechanical Installation

With an equipment weight of approximately 1,246 kg, the drive requires proper mechanical planning.

Before installation, engineers should evaluate:

• Floor loading
• Transportation route
• Door dimensions
• Lifting equipment
• Forklift capacity
• Crane access
• Lifting points
• Maintenance access
• Final equipment position

The drive should be treated as heavy industrial equipment rather than as a conventional small cabinet-mounted VFD.

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34. Electrical Installation

A 595 A drive represents a significant electrical installation.

The complete system should be designed around:

• Incoming feeder capacity
• Short-circuit rating
• Protective devices
• Busbar capacity
• Conductor ampacity
• Motor cable sizing
• Grounding
• EMC
• Harmonics
• Motor compatibility
• Electrical clearances

The VFD should always be considered as one part of the complete power-distribution system.

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35. Motor Selection

The motor should be checked against the drive’s electrical ratings.

Motor Parameter	Importance
Motor Voltage	Must be compatible with the drive
Motor Full-Load Current	Primary drive-sizing parameter
Motor Horsepower	Determines approximate power class
Motor Frequency	Important for speed control
Motor Speed	Determines operating range
Motor Power Factor	Affects current
Motor Efficiency	Affects power requirement
Motor Inertia	Important for acceleration
Starting Torque	Important for heavy loads
Overload Requirement	Determines duty selection
Cooling Method	Important at reduced speed

For final engineering selection, the motor nameplate should always be checked.

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36. Duty Selection

Application	Recommended Evaluation	Reason
Large Centrifugal Pump	LD / ND	Variable-torque load
Large Fan	LD / ND	Usually continuous operation
Large Blower	LD / ND	Process-air application
Large Conveyor	ND / HD	Higher starting torque
Mining Conveyor	ND / HD	High inertia
Material Handling	ND / HD	Heavy mechanical load
Large Pump Station	LD / ND	Variable process demand
Industrial Fan	LD / ND	Variable-speed operation
High-Inertia Machine	HD	Greater overload demand

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37. Five Recommended Same-Series / Related Models

The following models are useful when comparing the 20G11BE595AN0NNNNN with other PowerFlex 755 configurations in the same 600 VAC family.

No.	Model	Voltage	Current	LD Rating	ND Rating	HD Rating	Frame	Depth
1	20G11BE630AN0NNNNN	600 VAC	630 A	800 HP	700 HP	600 HP	9	Approx. 600 mm
2	20G11BE760AN0NNNNN	600 VAC	760 A	900 HP	800 HP	700 HP	9	Approx. 600 mm
3	20G11BE825AN0NNNNN	600 VAC	825 A	950 HP	900 HP	750 HP	9	Approx. 600 mm
4	20G11BE900AN0NNNNN	600 VAC	900 A	1,000 HP	950 HP	800 HP	9	Approx. 600 mm
5	20G11BE980AN0NNNNN	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	9	Approx. 600 mm

These models form a useful progression from approximately 600 A to approximately 1,000 A.

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38. Same-Series Electrical Comparison

Model	Voltage	Output Current	LD	ND	HD	Frame	Cooling
20G11BE595AN0NNNNN	600 VAC	595 A	700 HP	600 HP	500 HP	9	Air Cooled
20G11BE630AN0NNNNN	600 VAC	630 A	800 HP	700 HP	600 HP	9	Air Cooled
20G11BE760AN0NNNNN	600 VAC	760 A	900 HP	800 HP	700 HP	9	Air Cooled
20G11BE825AN0NNNNN	600 VAC	825 A	950 HP	900 HP	750 HP	9	Air Cooled
20G11BE900AN0NNNNN	600 VAC	900 A	1,000 HP	950 HP	800 HP	9	Air Cooled
20G11BE980AN0NNNNN	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	9	Air Cooled

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39. Mechanical Comparison of Related Models

Model	Frame	Depth	Width	Height	Approx. Weight
20G11BE595AN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Approx. 1,246 kg
20G11BE630AN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE760AN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE825AN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE900AN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE980AN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent

The mechanical dimensions and weight of related configurations can vary with the complete catalog arrangement.

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40. Five Same-Brand Popular / Related Models

No.	Model	Product Series	Voltage Class	Approximate Application Level	Typical Application
1	25B-D017N104	PowerFlex 525	480 VAC Class	Small / Medium	Pumps, Fans, Conveyors
2	25C-D017N114	PowerFlex 527	480 VAC Class	Small / Medium	Machine Automation
3	20F11NC2P1JA0NNNNN	PowerFlex 753	480 VAC Class	Medium / High	Industrial Equipment
4	20G11NC2P1JA0NNNNN	PowerFlex 755	480 VAC Class	High	Industrial Process Equipment
5	20G11BE1K1AN0NNNNN	PowerFlex 755	600 VAC	Very High	Large Industrial Motors

These five models cover significantly different power levels.

The smaller PowerFlex models are more appropriate for compact machinery, while the PowerFlex 753 and 755 families are intended for more demanding industrial applications.

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41. Same-Brand Technical Comparison

Model	Series	Voltage Class	Typical Scale	Cooling	Typical Control
25B-D017N104	PowerFlex 525	480 VAC	Small / Medium	Air Cooled	Local / Network
25C-D017N114	PowerFlex 527	480 VAC	Small / Medium	Air Cooled	Automation Network
20F11NC2P1JA0NNNNN	PowerFlex 753	480 VAC	Medium / High	Air Cooled	Industrial Control
20G11NC2P1JA0NNNNN	PowerFlex 755	480 VAC	High	Air Cooled	Industrial Network
20G11BE1K1AN0NNNNN	PowerFlex 755	600 VAC	Very High	Forced Air	Industrial Network

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42. Application Suitability

Application	Suitability	Reason
Large Centrifugal Pumps	Excellent	High current and variable-speed capability
Large Fans	Excellent	Variable-speed airflow control
Large Blowers	Excellent	High-power motor control
Mining Conveyors	Excellent	Controlled acceleration
Mine Dewatering	Excellent	Large pump capacity
Cement Plants	Excellent	High-power process equipment
Steel Plants	Excellent	Large auxiliary motors
Water Treatment	Excellent	Pumping applications
Wastewater Plants	Excellent	Pumps and blowers
Industrial Ventilation	Excellent	Large fan applications
Bulk Material Handling	Excellent	High-power conveyors
Small Pumps	Oversized	Excessive drive capacity
Small Fans	Oversized	Smaller drive recommended
Small Machinery	Oversized	Power level is excessive

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43. Advantages Compared With Smaller VFDs

The main advantage of the 20G11BE595AN0NNNNN is its ability to control large motors while maintaining the communication and control functions expected from a modern industrial drive.

Compared with a compact VFD, this model offers:

• Much higher output current
• Much higher horsepower capability
• 600 VAC operation
• Frame 9 construction
• High-power cooling
• Industrial MCC-style packaging
• Embedded Ethernet/IP
• High-power motor control
• Centralized automation integration

This makes it particularly appropriate for large-scale industrial facilities.

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44. Replacement Consideration

The original 20G11BE595AN0NNNNN has been discontinued.

The corresponding direct replacement is:

20G11BE595JN0NNNNN

The two configurations belong to the same PowerFlex 755 high-power platform.

Parameter	Original	Replacement
Model	20G11BE595AN0NNNNN	20G11BE595JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	600 VAC	600 VAC
Current	595 A	595 A
LD	700 HP	700 HP
ND	600 HP	600 HP
HD	500 HP	500 HP
Frame	9	9
Cooling	Air Cooled	Air Cooled
Package	600 mm MCC Style	600 mm MCC Style
EMC Filter	Yes	Yes
Dynamic Braking	None	None
HIM	None	None
Main Configuration Difference	A Configuration	J Configuration

The replacement should still be evaluated at the system level.

Before replacement, engineers should verify:

• Motor parameters
• Input voltage
• Output current
• Grounding arrangement
• CM configuration
• Control wiring
• Communication configuration
• Mechanical dimensions
• Cable arrangement
• Drive parameters
• Application duty

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45. Importance of the AN0 Configuration

The catalog number contains multiple configuration elements.

The AN0 portion is important because it identifies a particular combination of input, common-mode and operator-interface characteristics.

In particular, this configuration is associated with:

• AC input with precharge
• CM jumper removed
• No dynamic-braking transistor
• No HIM
• EMC filtering

This is why replacing a drive based solely on voltage and horsepower is not recommended.

The complete catalog number should be compared.

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46. Why the No-HIM Configuration Is Useful

The blank/no-HIM configuration is particularly suitable for centralized control.

In a large plant, the drive may be installed inside an electrical room while the operator controls the motor from a remote HMI.

A typical arrangement is:

Operator HMI

↓

PLC

↓

Ethernet/IP

↓

PowerFlex 755

↓

595 A Motor

↓

Process Equipment

This reduces the need for local operator interaction with the drive cabinet.

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47. Energy Management Benefits

Large motors can represent a major portion of the electrical consumption of an industrial facility.

Variable-speed operation can improve energy utilization in appropriate applications.

For example:

Pump at full speed

→ Maximum flow

→ High motor power

versus:

Pump at reduced speed

→ Lower flow

→ Lower motor power

This is especially effective for variable-torque loads.

The largest potential benefits are generally associated with:

• Pumping systems
• Fans
• Blowers
• Cooling systems

The actual savings depend on the process and operating profile.

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48. Maintenance Strategy

A suitable maintenance program should include periodic inspection of:

Cooling System

Check fan operation, airflow and contamination.

Power Connections

Inspect terminals and connections for signs of overheating or looseness.

Electrical Environment

Monitor temperature, humidity and contamination.

Communication

Verify Ethernet/IP communication and control-system status.

Fault History

Review recurring faults rather than simply clearing them.

Motor

Inspect the motor, bearings, insulation and mechanical coupling.

Grounding

Verify grounding and bonding integrity.

A preventive-maintenance program can help reduce unexpected downtime.

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49. Thermal and Environmental Requirements

Because this is a high-power air-cooled drive, environmental conditions have a direct effect on reliability.

Important factors include:

• Ambient temperature
• Cooling-air quality
• Airflow
• Dust
• Humidity
• Corrosive atmosphere
• Altitude
• Electrical-room ventilation

The drive should not be installed where hot exhaust air from another drive is continuously recirculated.

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50. Mechanical Handling

The approximately 1,246 kg equipment weight makes transportation and installation an important part of the project.

A complete installation plan should consider:

• Factory shipping dimensions
• Doorway dimensions
• Floor loading
• Lifting equipment
• Forklift capacity
• Crane capacity
• Equipment orientation
• Final placement
• Maintenance access
• Future replacement

A heavy-duty lifting plan should be prepared before the equipment arrives at the site.

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51. Complete Product Specification Table

Parameter	20G11BE595AN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Series Group	PowerFlex 750-Series
Product Type	High-Power AC Variable Frequency Drive
Input Voltage	600 VAC
Input Phase	3 Phase
Output Current	595 A
Light-Duty Rating	700 HP
Normal-Duty Rating	600 HP
Heavy-Duty Rating	500 HP
Approx. LD Power	522 kW
Approx. ND Power	448 kW
Approx. HD Power	373 kW
Frame	9
Cooling	Air Cooled / Forced Air
Enclosure	Type 1
Protection Rating	IP20
Package Style	600 mm Deep MCC Style
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Approx. Equipment Weight	1,246 kg
Approx. Metric Weight	1.25 metric tons
Input Arrangement	AC Input with Precharge
DC Terminals	Yes
Dynamic Braking	None
Internal Braking Transistor	None
EMC Filter	Yes
CM Jumper	Removed
HIM	None / Blank
Local Keypad	None
Ethernet/IP	Embedded
Installation Style	Industrial MCC
Typical Application	Pumps, Fans, Blowers, Conveyors, Mining, Cement, Water and Process Equipment
Lifecycle	Discontinued
Direct Replacement	20G11BE595JN0NNNNN

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52. Quick Selection Guide

Requirement	Recommended Choice
Motor around 500 HP with heavy-duty requirements	20G11BE595AN0NNNNN
Motor around 600 HP for normal-duty operation	20G11BE595AN0NNNNN
Motor around 700 HP for light-duty operation	20G11BE595AN0NNNNN
Need more current capacity	20G11BE630AN0NNNNN or higher
Need approximately 760 A	20G11BE760AN0NNNNN
Need approximately 825 A	20G11BE825AN0NNNNN
Need approximately 900 A	20G11BE900AN0NNNNN
Need approximately 980 A	20G11BE980AN0NNNNN
Need a current replacement for this model	20G11BE595JN0NNNNN
Need a smaller compact VFD	PowerFlex 525 class
Need a medium/high-power industrial drive	PowerFlex 753 class
Need a very high-power drive	PowerFlex 755 class

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53. Overall Product Assessment

The Allen-Bradley 20G11BE595AN0NNNNN is a substantial industrial AC drive intended for large motor applications.

Its key electrical characteristics are 600 VAC, three-phase input, 595 A output current, 700 HP Light Duty, 600 HP Normal Duty and 500 HP Heavy Duty.

The Frame 9, forced-air cooling and 600 mm deep MCC-style construction make it appropriate for centralized industrial electrical installations.

The drive’s embedded Ethernet/IP capability is another major advantage because it allows the motor-control system to be integrated into a larger automation architecture.

The no-HIM configuration is particularly suitable for plants where operators control equipment through PLC, HMI or SCADA systems rather than from the front of the drive.

The EMC-filtered configuration and CM jumper removed arrangement are also important when integrating the drive into an industrial grounding and motor-cable system.

The model is well suited to large pumps, fans, blowers, conveyors, mining equipment, cement machinery, water-treatment systems, wastewater equipment, industrial ventilation and heavy material-handling systems.

From a mechanical standpoint, the approximately 600 mm package depth and approximately 1,246 kg equipment weight make this a serious piece of industrial equipment that requires proper transportation, floor-loading, ventilation and maintenance planning.

For applications around the 500–700 HP range, this model provides a strong combination of current capacity, industrial networking, high-power construction and variable-speed control.

Because the original AN0 configuration is discontinued, the 20G11BE595JN0NNNNN should be considered when planning a replacement. However, a replacement project should verify the complete catalog configuration rather than matching only horsepower and voltage.

In practical terms, the 20G11BE595AN0NNNNN can be summarized as a 600 VAC, 595 A, Frame 9 PowerFlex 755 high-power AC drive designed for approximately 373–522 kW-class motor applications depending on duty, with 600 mm MCC-style construction, forced-air cooling, embedded Ethernet/IP, EMC filtering and no local HIM.