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1. Product Introduction

The Allen-Bradley 20G11BE1K4JN0NNNNN is a very high-power PowerFlex 755 AC Drive designed for large industrial motor-control applications.

It is a 600 VAC, three-phase, air-cooled variable-frequency drive with an output current rating of approximately 1,430 A. The drive is intended for extremely large motor loads, with published ratings of approximately 1,500 HP Light Duty, 1,400 HP Normal Duty and 1,250 HP Heavy Duty.

This model uses a Frame 10 construction and a 600 mm deep MCC-style package. It is configured for Type 1 / IP20 protection, forced-air cooling, AC input with DC terminals, embedded Ethernet/IP, EMC filtering and a CM jumper installed configuration.

Unlike the earlier 20G11BE1K4AN0NNNNN, this model uses the JN0 configuration. The most noticeable catalog-level difference is the input/configuration arrangement represented by the “J” option, while the power rating remains in the same very-high-power class.

The model is also important from a replacement perspective because it is the current replacement configuration associated with the discontinued 20G11BE1K4AN0NNNNN.

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2. Brand and Product Series

Item	Specification
Model	20G11BE1K4JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Series Group	PowerFlex 750-Series
Product Type	High-Power AC Variable Frequency Drive
Drive Type	PowerFlex 755 AC Drive
Voltage Class	600 VAC
Phase	3 Phase
Output Current	1,430 A
Maximum Listed LD Rating	1,500 HP
Maximum Listed ND Rating	1,400 HP
Maximum Listed HD Rating	1,250 HP
Frame	10
Cooling	Forced Air
Enclosure	Type 1
Protection Rating	IP20
Package	600 mm Deep MCC Style
Input Arrangement	AC Input with Precharge / DC Terminals
Dynamic Braking	None
EMC Filter	Filtered
CM Jumper	Installed
HIM	None / Blank
Communication	Embedded Ethernet/IP
Installation	Industrial / MCC
Product Status	Active

The complete catalog number is important because PowerFlex 755 drives can be supplied in many combinations of voltage, current, frame, enclosure, braking, filtering, HIM and input configuration.

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3. Main Technical Specifications

Technical Parameter	Specification
Model	20G11BE1K4JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	High-Power AC Drive
Input Voltage	600 VAC
Input Phase	3 Phase
Output Current	1,430 A
Light-Duty Rating	1,500 HP
Normal-Duty Rating	1,400 HP
Heavy-Duty Rating	1,250 HP
Approx. LD Power	1,119 kW
Approx. ND Power	1,044 kW
Approx. HD Power	933 kW
Frame	10
Cooling	Forced Air
Enclosure	Type 1
Protection	IP20
Package Style	600 mm Deep MCC Style
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Planning Weight	Approx. 1,300–1,500 kg class
Final Weight	Configuration Dependent
Input	AC Three-Phase with Precharge
DC Terminals	Yes
Dynamic Braking	None
Internal Braking Transistor	None
EMC Filter	Yes
CM Jumper	Installed
HIM	None / Blank
Local Keypad	None
Ethernet/IP	Embedded
Cooling Method	Air Cooled / Forced Air
Installation	Industrial MCC / Electrical Room
Typical Motor Range	Approximately 1 MW class and above
Typical Applications	Pumps, Fans, Blowers, Conveyors, Mining, Cement, Water and Process Equipment
Product Status	Active

The official product configuration identifies the drive as a PowerFlex 755 AC Drive with embedded Ethernet/IP, forced air, AC input with DC terminals, Type 1/IP20, 600 mm deep MCC style, 1,430 A, 1,500 HP LD, 1,400 HP ND, 1,250 HP HD, 600 VAC, three-phase, Frame 10, filtered, CM jumper installed, no HIM.

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4. Electrical Rating

The electrical capacity of the 20G11BE1K4JN0NNNNN is its most significant characteristic.

The drive is rated for approximately 1,430 A at 600 VAC three-phase.

Its published horsepower ratings are:

Duty Rating	Horsepower	Approximate Power
Light Duty	1,500 HP	1,119 kW
Normal Duty	1,400 HP	1,044 kW
Heavy Duty	1,250 HP	933 kW

The kilowatt values are approximate conversions using 1 HP ≈ 0.746 kW.

For actual drive selection, the motor’s rated current should take priority over a simple horsepower comparison.

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5. 600 VAC Three-Phase Operation

The 600 VAC rating makes this drive suitable for industrial electrical systems using a 600 VAC class motor supply.

This voltage class is particularly useful for large industrial motor systems because higher voltage can help manage current requirements compared with lower-voltage systems.

However, at 1,430 A, this remains a very substantial electrical installation.

The incoming switchgear, feeder, protection, conductors, busbars and motor connection system all need to be designed around the actual operating conditions.

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6. 1,430 Amp Output Capacity

The 1,430 A output rating places the 20G11BE1K4JN0NNNNN in the very-high-power category.

It can be considered for motor applications around the one-megawatt level and above, depending on:

• Motor voltage
• Motor efficiency
• Motor power factor
• Motor rated current
• Duty cycle
• Overload requirement
• Acceleration requirements
• Process load

The drive should not be selected simply because the motor horsepower appears to be within the listed rating.

The motor nameplate current remains one of the most important selection parameters.

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7. Frame 10 Construction

The drive uses Frame 10 construction.

This is a large physical platform designed to accommodate the electrical and thermal requirements associated with very high-current operation.

A drive of this size contains substantially larger power components than compact VFDs.

The physical installation therefore needs to account for:

• Equipment weight
• Floor loading
• Cable routing
• Heat dissipation
• Airflow
• Service access
• Lifting
• Transportation
• Electrical clearance
• Maintenance access

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8. Forced-Air Cooling

The 20G11BE1K4JN0NNNNN uses forced-air cooling.

At this power level, thermal management is a major part of the installation.

The cooling system moves air through the power section to remove heat generated during operation.

The electrical room should therefore provide adequate:

• Ventilation
• HVAC capacity
• Air circulation
• Service clearance
• Ambient-temperature control
• Cooling-air quality

The drive should not be installed where hot exhaust air from another high-power device is continuously recirculated through the drive.

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9. Type 1 / IP20 Enclosure

The drive is configured as Type 1 / IP20.

This is an indoor industrial protection arrangement.

It should not be interpreted as a weatherproof enclosure.

The installation should protect the equipment against:

• Direct water
• Rain
• Condensation
• Excessive humidity
• Conductive dust
• Corrosive chemicals
• Excessive airborne contamination
• Abnormal environmental conditions

Where the installation environment is particularly harsh, additional enclosure or environmental protection may be required.

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10. 600 mm Deep MCC-Style Package

The model uses a 600 mm deep MCC-style package.

This is an important mechanical characteristic for electrical-room planning.

Mechanical Parameter	Specification
Model	20G11BE1K4JN0NNNNN
Frame	10
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
Service Space	Required
Ventilation Space	Required
Floor Loading	Must Be Evaluated

The 600 mm depth does not represent the complete installation footprint.

Large motor cables may require additional space for cable bending and termination.

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11. Dimensions

For this high-power packaged drive, the dimensions should be treated as configuration-specific rather than assumed from the frame number alone.

Dimension	Specification
Model	20G11BE1K4JN0NNNNN
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Overall Installation Footprint	Configuration Dependent
Cable Bending Space	Required
Service Clearance	Required
Door Clearance	Required
Ventilation Clearance	Required

The 600 mm depth is the primary package dimension available for general planning.

The final height and width should be taken from the mechanical drawing for the actual configuration.

For engineering documentation, it is much safer to state “configuration dependent” than to use an unverified cabinet dimension.

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12. Weight

This is a very large industrial drive and should be treated as heavy electrical equipment.

For preliminary planning, a reasonable classification is approximately 1,300–1,500 kg.

Weight Parameter	Specification
Model	20G11BE1K4JN0NNNNN
Planning Weight	Approx. 1,300–1,500 kg class
Final Equipment Weight	Configuration Dependent
Shipping Weight	Configuration Dependent
Floor Loading	Must Be Evaluated
Transportation	Heavy Industrial Equipment
Lifting	Suitable Heavy-Duty Lifting Equipment
Installation	Professional Mechanical Handling Recommended

The 1,300–1,500 kg figure is a planning-level estimate, not a certified shipping weight.

For structural calculations, transportation documents and lifting plans, the actual configuration-specific weight should be used.

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13. Input With Precharge

One important difference in the JN0 configuration is the AC input arrangement with precharge.

Precharge is used to manage the charging of the DC bus during energization.

The basic power path can be understood as:

600 VAC Three-Phase Input

↓

Input / Precharge Section

↓

DC Bus

↓

Power Inverter

↓

Variable-Frequency AC Output

↓

Large AC Motor

This arrangement helps manage the initial charging process of the DC bus and forms part of the drive’s high-power input architecture.

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14. CM Jumper Installed

The 20G11BE1K4JN0NNNNN is configured with the CM jumper installed.

This is an important distinction when comparing it with related catalog numbers.

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

When replacing another PowerFlex 755 drive, the complete catalog number should therefore be checked rather than assuming that two models with the same current rating are electrically identical.

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15. EMC Filter

The drive is configured as a filtered unit.

Electromagnetic compatibility is important in high-power switching equipment.

A VFD rapidly switches its output power devices to generate the required motor waveform.

This switching process can produce electrical disturbances.

The EMC filter contributes to controlling conducted disturbances within a properly designed installation.

However, the overall EMC design also depends on:

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

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16. No Dynamic Braking

The model is specified with no dynamic braking.

Parameter	Specification
Model	20G11BE1K4JN0NNNNN
Dynamic Braking	None
Internal Braking Transistor	None
High-Inertia Loads	Engineering Evaluation Required
Rapid Deceleration	Additional Solution May Be Required
Regenerative Loads	Application Dependent

This is an important selection point.

A drive may have enough current capacity for a motor but still require additional braking equipment because of the mechanical characteristics of the application.

For high-inertia loads, possible approaches include:

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

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

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17. No Local HIM

The N0 portion of the catalog configuration indicates a no-HIM arrangement.

HIM means Human Interface Module.

This configuration is well suited to large centralized automation systems.

Instead of using a local keypad, operators can interact with the drive through:

• PLC
• HMI
• SCADA
• DCS
• Ethernet/IP network
• Engineering workstation

This is especially useful in large industrial facilities where drives are installed inside electrical rooms rather than directly beside operators.

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18. Embedded Ethernet/IP

The PowerFlex 755 platform provides embedded Ethernet/IP connectivity.

This allows the drive to become part of a plant-wide automation network.

Typical information exchanged between the control system and drive can include:

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

This is one of the major advantages of using the PowerFlex 755 platform in an integrated industrial control system.

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19. Large Pump Applications

The 20G11BE1K4JN0NNNNN is particularly suitable for large pumping applications.

Examples include:

• Water-transfer pumps
• Raw-water pumps
• Mine dewatering pumps
• Cooling-water pumps
• Industrial process pumps
• Wastewater pumps
• Flood-control pumps
• Large circulation pumps

Variable-speed control can allow the pump to respond to actual process demand.

Instead of operating continuously at full speed, the motor speed can be adjusted according to the required flow or pressure.

This can also provide energy-saving potential in properly designed variable-torque systems.

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20. Large Fan Applications

Large fans can require extremely high motor power.

Potential applications include:

• Mine ventilation fans
• Industrial exhaust fans
• Cement-process fans
• Furnace ventilation
• Cooling fans
• Dust-collection systems
• Industrial air-handling systems

The drive allows fan speed to be controlled according to process requirements.

This can be much more flexible than operating a large motor at a fixed speed.

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21. Blower Applications

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

Potential applications include:

• Wastewater aeration
• Process-air systems
• Combustion air
• Pneumatic conveying
• Chemical process air
• Industrial ventilation
• Large drying systems

The high-current capability makes this model suitable for very large blower motors.

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22. Mining Applications

Mining facilities frequently use very large motors.

The drive can be considered for:

• Large conveyors
• Dewatering pumps
• Mine ventilation
• Material handling
• Processing systems
• Crushing-system auxiliaries
• Bulk material transportation

Mining applications often have high inertia and demanding mechanical conditions.

The drive should therefore be selected according to the actual torque and acceleration requirements rather than horsepower alone.

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23. Cement Industry Applications

Large cement plants use numerous high-power motors.

Possible applications include:

• Kiln auxiliary systems
• Large process fans
• Exhaust fans
• Blowers
• Cooling systems
• Material conveyors
• Large pumps
• Dust-collection equipment

The PowerFlex 755 platform is suitable for centralized control architectures in which large motors are integrated with plant automation.

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24. Steel and Metal Processing

Large metal-processing plants can require very high-power motors for:

• Cooling-water pumps
• Process fans
• Blowers
• Conveyors
• Material-handling equipment
• Ventilation
• Auxiliary process equipment

The 1,430 A rating provides the capacity required for very large motor systems.

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25. Water and Wastewater Applications

Water infrastructure can contain motors with very high horsepower ratings.

The drive can be considered for:

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

The variable-speed capability can help match pump operation to changing demand.

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26. Conveyor Applications

Large conveyors can have significant inertia.

A controlled acceleration profile can gradually bring the conveyor up to operating speed.

This can reduce mechanical shock to:

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

For very high-inertia conveyor systems, the acceleration time and torque requirements should be calculated before selecting the final drive configuration.

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27. Material-Handling Applications

High-power material-handling systems can include:

• Bulk-material conveyors
• Mining conveyors
• Ore handling
• Large feeders
• Processing conveyors
• Transfer systems
• Heavy industrial material transportation

The drive can provide controlled motor speed and acceleration while allowing the motor to be integrated into a larger automation system.

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28. Main Product Advantages

28.1 Very High Current Capacity

The 1,430 A rating is the most obvious advantage.

It allows the drive to control extremely large AC motors.

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28.2 High Horsepower Capability

The drive supports approximately:

• 1,500 HP Light Duty
• 1,400 HP Normal Duty
• 1,250 HP Heavy Duty

This places it in the very-high-power portion of the PowerFlex range.

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28.3 600 VAC Operation

The 600 VAC voltage class makes the model appropriate for large industrial power systems.

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28.4 Frame 10 Architecture

Frame 10 provides the physical and electrical architecture required for very high-current applications.

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28.5 Embedded Ethernet/IP

The integrated communication capability makes the drive easier to incorporate into modern industrial automation systems.

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28.6 No-HIM Configuration

The no-HIM arrangement is useful for centralized installations where local operator control is not necessary.

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28.7 Forced-Air Cooling

Forced-air cooling provides a practical solution for large indoor electrical-room installations.

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28.8 EMC-Filtered Configuration

The filtered configuration supports better electromagnetic compatibility when combined with proper installation practices.

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28.9 Precharge Input Configuration

The precharge arrangement provides controlled DC-bus energization for the high-power drive system.

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28.10 Suitable for Large Industrial Motors

The drive is specifically suited to applications where smaller VFDs cannot provide enough current or overload capability.

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29. Energy-Saving Potential

One of the most important benefits of variable-speed operation is the possibility of reducing energy consumption in suitable applications.

This is particularly relevant to:

• Pumps
• Fans
• Blowers

For variable-torque loads, operating at a lower speed can significantly reduce power consumption.

For example, a large water pump may not need to operate at full speed when demand is reduced.

The drive can reduce motor speed while maintaining the required process output.

Actual savings depend on:

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

Therefore, energy savings should be calculated from the actual process rather than assumed.

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30. Centralized Automation

A typical installation can be structured as:

Plant Control System

↓

Ethernet/IP Network

↓

PowerFlex 755 Drive

↓

Large AC Motor

↓

Pump / Fan / Conveyor / Blower

This arrangement allows the control system to supervise the motor without requiring operators to access the physical drive cabinet.

This is particularly useful in:

• Water plants
• Mining facilities
• Cement plants
• Steel plants
• Large manufacturing facilities
• Process industries

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31. Maintenance Considerations

A high-power drive requires a structured maintenance program.

Important inspection points include:

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

The cooling system deserves particular attention.

Dust accumulation can restrict airflow and increase operating temperature.

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32. Thermal Management

The drive produces significant heat during operation.

This is especially important when multiple high-power drives are installed in the same electrical room.

The room should provide:

• Adequate HVAC capacity
• Proper ventilation
• Controlled temperature
• Sufficient airflow
• Clean cooling air
• Appropriate equipment spacing

If the electrical room contains several drives of similar size, the combined heat load should be calculated rather than considering each drive independently.

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33. Mechanical Installation

The approximate 1,300–1,500 kg class planning weight means mechanical handling needs to be considered carefully.

Before installation, engineers should evaluate:

• Floor loading
• Door dimensions
• Transportation route
• Crane access
• Forklift capacity
• Lifting points
• Equipment positioning
• Maintenance access
• Future replacement route

The drive should be treated as heavy industrial electrical equipment.

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34. Electrical Installation

At 1,430 A, this is a major electrical installation.

The system should be engineered around:

• Incoming feeder rating
• Short-circuit current
• Circuit protection
• Busbar capacity
• Cable ampacity
• Motor cable sizing
• Grounding
• Termination requirements
• EMC
• Harmonics
• Motor compatibility
• Electrical clearances

The drive should be considered as part of the complete electrical distribution system rather than as an isolated component.

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35. Motor Selection

The motor should be checked carefully before selecting this drive.

Important parameters include:

Motor Parameter	Importance
Motor Rated Voltage	Must match the drive/application
Motor Full-Load Current	Critical for drive sizing
Motor Horsepower	Determines general power class
Motor Frequency	Important for speed control
Motor Speed	Determines operating range
Motor Power Factor	Affects current
Motor Efficiency	Affects actual 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 a very large motor, actual nameplate current should be checked before finalizing the drive.

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36. Duty Selection

Application	Typical Duty	Reason
Large Centrifugal Pump	LD / ND	Variable-torque load
Large Fan	LD / ND	Continuous operation
Large Blower	LD / ND	Process airflow
Large Conveyor	ND / HD	High starting load
Mining Conveyor	ND / HD	High inertia
Large Material Handling	ND / HD	Heavy mechanical load
Large Pump Station	LD / ND	Variable process demand
Cement Fan	LD / ND	Long continuous operation
High-Inertia Machine	HD	Greater overload requirement

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37. Five Recommended Same-Series or Closely Related Models

The following PowerFlex 755 models are useful comparison choices around the same high-power range.

No.	Model	Voltage	Current	LD Rating	ND Rating	HD Rating	Frame	Cooling
1	20G11BE760JN0NNNNN	600 VAC	760 A	900 HP	800 HP	700 HP	9	Air Cooled
2	20G11BE825JN0NNNNN	600 VAC	825 A	950 HP	900 HP	750 HP	9	Air Cooled
3	20G11BE980JN0NNNNN	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	9	Air Cooled
4	20G11BE1K1JN0NNNNN	600 VAC	1,110 A	1,200 HP	1,100 HP	1,000 HP	10	Air Cooled
5	20G11BE1K4JN0NNNNN	600 VAC	1,430 A	1,500 HP	1,400 HP	1,250 HP	10	Air Cooled

These models provide a useful progression from lower current capacity to the 1,430 A class.

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38. Same-Series Model Comparison

Model	Voltage	Output Current	LD	ND	HD	Frame	Depth
20G11BE760JN0NNNNN	600 VAC	760 A	900 HP	800 HP	700 HP	9	Approx. 600 mm
20G11BE825JN0NNNNN	600 VAC	825 A	950 HP	900 HP	750 HP	9	Approx. 600 mm
20G11BE980JN0NNNNN	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	9	Approx. 600 mm
20G11BE1K1JN0NNNNN	600 VAC	1,110 A	1,200 HP	1,100 HP	1,000 HP	10	Approx. 600 mm
20G11BE1K4JN0NNNNN	600 VAC	1,430 A	1,500 HP	1,400 HP	1,250 HP	10	Approx. 600 mm

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39. Mechanical Comparison of Related Models

Model	Frame	Depth	Width	Height	Approx. Weight
20G11BE760JN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE825JN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE980JN0NNNNN	9	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Configuration Dependent
20G11BE1K1JN0NNNNN	10	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Approx. 1,300 kg class
20G11BE1K4JN0NNNNN	10	Approx. 600 mm	Configuration Dependent	Configuration Dependent	Approx. 1,300–1,500 kg class

Exact height, width and final weight depend on the particular packaged configuration and should be confirmed before mechanical installation.

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40. Five Recommended Same-Brand Popular / Related Models

No.	Model	Series	Voltage Class	Power 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 Machinery
4	20G11NC2P1JA0NNNNN	PowerFlex 755	480 VAC Class	High	Industrial Process Equipment
5	20G11BE1K4JN0NNNNN	PowerFlex 755	600 VAC	Very High	Large Industrial Motors

These models represent different power ranges and product configurations.

They should not automatically be considered direct replacements for one another.

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41. Same-Brand Technical Comparison

Model	Series	Voltage Class	Typical Scale	Cooling	Interface
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	Configuration Dependent
20G11NC2P1JA0NNNNN	PowerFlex 755	480 VAC	High	Air Cooled	Configuration Dependent
20G11BE1K4JN0NNNNN	PowerFlex 755	600 VAC	Very High	Forced Air	Embedded Ethernet/IP

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42. Application Suitability

Application	Suitability	Reason
Large Centrifugal Pumps	Excellent	Very high current capability
Large Fans	Excellent	Variable-speed operation
Large Blowers	Excellent	High-power motor control
Mining Conveyors	Excellent	Controlled acceleration
Mine Dewatering	Excellent	Large pump capacity
Cement Plants	Excellent	Large process motors
Steel Plants	Excellent	High-power auxiliary systems
Water Treatment	Excellent	Large pumping systems
Wastewater Plants	Excellent	Pumps and blowers
Industrial Ventilation	Excellent	Large fan applications
Bulk Material Handling	Excellent	High-power motor control
Small Pumps	Oversized	Excessive current capacity
Small Fans	Oversized	Smaller drive more appropriate
Small Machinery	Oversized	Excessive power capability

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43. Advantages Compared With Smaller Drives

The main advantage of the 20G11BE1K4JN0NNNNN is not simply that it is a VFD.

Its value comes from being able to handle a very large motor while remaining part of an industrial automation architecture.

A smaller drive may be easier to install, but it may not have the necessary current capacity.

The 20G11BE1K4JN0NNNNN provides:

• Very high current capability
• High horsepower capacity
• 600 VAC operation
• PowerFlex 755 functionality
• Ethernet/IP integration
• Centralized control capability
• Forced-air cooling
• MCC-style industrial packaging
• EMC-filtered configuration
• No-HIM configuration

This combination makes it appropriate for large-scale industrial installations.

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44. Important Replacement Consideration

The 20G11BE1K4JN0NNNNN is the direct replacement configuration for the earlier 20G11BE1K4AN0NNNNN.

The two models have the same major power class:

Parameter	20G11BE1K4AN0NNNNN	20G11BE1K4JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	600 VAC	600 VAC
Current	1,430 A	1,430 A
LD	1,500 HP	1,500 HP
ND	1,400 HP	1,400 HP
HD	1,250 HP	1,250 HP
Frame	10	10
Cooling	Forced Air	Forced Air
Package	600 mm MCC Style	600 mm MCC Style
EMC Filter	Yes	Yes
Dynamic Braking	None	None
HIM	None	None
CM Jumper	Removed	Installed
Status	Discontinued	Active

The CM jumper configuration is a key difference.

Therefore, although the JN0 model is the direct replacement, an actual replacement project should still verify the electrical configuration, grounding requirements, control parameters, mechanical arrangement and application requirements before installation.

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45. Why the JN0 Model Is Important

The 20G11BE1K4JN0NNNNN is particularly relevant when an existing high-power PowerFlex installation needs to move from the older configuration to the newer active catalog configuration.

The drive maintains the same basic high-power capability:

600 VAC

1,430 A

1,500 HP LD

1,400 HP ND

1,250 HP HD

Frame 10

This makes it a logical choice for large installations where the existing motor and process requirements remain within the same electrical class.

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46. Installation Environment

A suitable installation environment should generally provide:

• Indoor industrial location
• Controlled ambient temperature
• Adequate ventilation
• Low contamination
• Appropriate electrical clearance
• Adequate cable access
• Sufficient floor capacity
• Adequate maintenance space
• Suitable lifting access
• Proper grounding

The Type 1 / IP20 construction means that the surrounding installation needs to provide environmental protection.

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47. Maintenance Advantages of Centralized Control

Because the drive can communicate through Ethernet/IP, maintenance personnel can obtain a large amount of operating information from the automation system.

Typical information can include:

• Drive running status
• Motor speed
• Motor current
• Fault condition
• Alarm condition
• Operating status
• Communication status

This can make troubleshooting more efficient.

Instead of starting every diagnostic process at the physical drive, technicians can first review the information available through the control system.

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48. Energy Management

The drive can also form part of a plant energy-management strategy.

For large motors, even a relatively small reduction in operating speed can have a substantial effect on energy consumption in suitable variable-torque applications.

For example:

Full Speed

→ High Pump Flow

→ High Energy Consumption

versus

Reduced Speed

→ Reduced Flow

→ Lower Energy Consumption

The actual relationship depends strongly on the application.

Pumps and fans generally provide the greatest potential for variable-speed energy optimization.

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49. Overall Product Strengths

Strength	Description
Very High Current	1,430 A output capability
High Horsepower	Up to approximately 1,500 HP LD
600 VAC	Suitable for large industrial systems
Frame 10	High-power mechanical platform
Ethernet/IP	Industrial network integration
No HIM	Suitable for centralized control
Forced Air	Practical cooling for large drives
EMC Filtered	Supports electrical-noise management
Precharge Input	Appropriate high-power input architecture
MCC Style	Suitable for centralized electrical installations
PowerFlex 755	Advanced industrial drive platform
Large Application Range	Pumps, fans, blowers, conveyors and process equipment

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50. Complete Technical Data Summary

Parameter	20G11BE1K4JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Series Group	PowerFlex 750-Series
Product Type	High-Power AC Variable Frequency Drive
Catalog Number	20G11BE1K4JN0NNNNN
Input Voltage	600 VAC
Input Phase	3 Phase
Output Current	1,430 A
Light-Duty Rating	1,500 HP
Normal-Duty Rating	1,400 HP
Heavy-Duty Rating	1,250 HP
Approx. LD Power	1,119 kW
Approx. ND Power	1,044 kW
Approx. HD Power	933 kW
Frame	10
Cooling	Forced Air / Air Cooled
Enclosure	Type 1
Protection Rating	IP20
Package Style	600 mm Deep MCC Style
Depth	Approx. 600 mm
Width	Configuration Dependent
Height	Configuration Dependent
Planning Weight	Approx. 1,300–1,500 kg class
Final Weight	Configuration Dependent
Input Arrangement	AC Input with Precharge
DC Terminals	Yes
Dynamic Braking	None
Internal Braking Transistor	None
EMC Filter	Yes
CM Jumper	Installed
HIM	None / Blank
Local Keypad	None
Ethernet/IP	Embedded
Cooling System	Forced Air
Installation Style	Industrial MCC
Typical Application	Large Pumps, Fans, Blowers, Conveyors, Mining, Cement, Water, Wastewater and Process Equipment
Product Status	Active

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51. Final Product Assessment

The Allen-Bradley 20G11BE1K4JN0NNNNN is a very-high-power PowerFlex 755 AC Drive designed for industrial motor applications that require extremely high current capacity.

Its 600 VAC three-phase input, 1,430 A output rating, 1,500 HP Light-Duty rating, 1,400 HP Normal-Duty rating and 1,250 HP Heavy-Duty rating make it suitable for large motors in the approximately one-megawatt and above range.

The Frame 10 platform, forced-air cooling and 600 mm deep MCC-style package are designed for large industrial electrical installations.

The JN0 configuration is especially useful for centralized control systems because it is supplied without a local HIM and can be integrated into an automation architecture using embedded Ethernet/IP.

The model also uses a CM jumper installed configuration and an input arrangement with precharge, which are important details when comparing it with earlier or alternative PowerFlex 755 catalog numbers.

The drive is well suited to large pumping stations, mine dewatering, industrial ventilation, large fans, blowers, cement plants, mining conveyors, water-treatment facilities, wastewater systems, steel plants and heavy material-handling equipment.

Its major strengths are its extremely high current capability, high horsepower capacity, industrial automation integration, 600 VAC voltage class, forced-air cooling and high-power Frame 10 construction.

For preliminary mechanical planning, the package can be considered approximately 600 mm deep, while the exact height and width should be treated as configuration-dependent.

For weight planning, an approximate 1,300–1,500 kg class should be allowed for this type of large packaged configuration, with the final configuration-specific weight used for transportation, structural and lifting calculations.

In practical terms, the 20G11BE1K4JN0NNNNN can be described as a 600 VAC, 1,430 A, Frame 10 PowerFlex 755 high-power AC drive for approximately 1.25–1.5 MW-class industrial motor applications, particularly where centralized automation and variable-speed control are required.