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PowerFlex 755 Air-Cooled AC Drive

Model 20G11LF960JN0NNNNN

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1. Product Overview

The 20G11LF960JN0NNNNN is a high-power industrial AC variable-frequency drive from the PowerFlex 755 product family.

It is designed for large three-phase motor applications where high output current, controlled motor speed, controlled acceleration and integration with an industrial automation system are required.

This model is a 690 VAC, 960 A, three-phase PowerFlex 755 AC packaged drive. It is intended for very large motor systems and belongs to the high-power end of the PowerFlex 755 range.

The drive is particularly suitable for large pumps, fans, blowers, conveyors, compressors, material-handling systems, mining equipment and other heavy industrial machinery.

The complete catalog number is important because the individual characters identify the drive’s electrical and mechanical configuration. Therefore, 20G11LF960JN0NNNNN should be used as the complete identification when comparing equipment, preparing a replacement or checking compatibility.

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2. Brand and Product Series

Category	Specification
Model	20G11LF960JN0NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Platform	PowerFlex 750-Series
Product Type	AC Variable-Frequency Drive
Package Type	AC Packaged Drive
Voltage Class	690 VAC
Rated Current	960 A
Cooling	Air Cooled
Mechanical Style	MCC Style
Frame	Frame 9
Mechanical Size	800 mm class
Enclosure	Type 1
Protection	IP20
Communication	Embedded EtherNet/IP
Input Configuration	AC Input with Precharge
DC Terminals	Yes
Dynamic Braking	None
Filtering	Filtered
CM Capacitor Configuration	CM Jumper Installed
Operator Interface	Blank / No HIM

The product belongs to the PowerFlex 755 series, which is designed for demanding industrial motor-control applications.

Compared with smaller variable-frequency drives, the PowerFlex 755 platform is intended for larger machines where motor control, diagnostics, networking and application flexibility are important.

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3. Basic Technical Parameters

Parameter	Specification
Model	20G11LF960JN0NNNNN
Product Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	High-Power AC Drive
Input Voltage	690 VAC
Input Phase	3 Phase
Output Phase	3 Phase
Rated Output Current	960 A
Light-Duty Power	1,000 kW
Normal-Duty Power	900 kW
Heavy-Duty Power	800 kW
Input Frequency	50/60 Hz class
Input Type	AC Input with Precharge
DC Terminals	Yes
Cooling	Air Cooled
Frame	Frame 9
Mechanical Style	MCC Style
Mechanical Depth	800 mm class
Enclosure	Type 1
Protection Rating	IP20
Filtering	Yes
CM Jumper	Installed
Dynamic Braking	None
Operator Interface	Blank / No HIM
Communication	Embedded EtherNet/IP
Output	Variable-frequency three-phase AC
Mounting	Cabinet / MCC
Dimensions	Configuration-dependent, 800 mm depth class
Weight (kg)	Configuration-dependent
Typical Application	Large industrial motors

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4. Electrical Power Rating

The 960 A rated output current is the most important electrical characteristic of this model.

The drive is designed for large motor systems where the motor current can reach several hundred amperes.

Its approximate duty ratings can be summarized as follows:

Duty Rating	Power Rating
Light Duty	1,000 kW
Normal Duty	900 kW
Heavy Duty	800 kW
Rated Current	960 A
Rated Voltage	690 VAC

The distinction between the different duty ratings is important when selecting a drive.

A centrifugal pump or fan normally has different overload characteristics from a conveyor or high-inertia constant-torque machine.

For a variable-torque application, the 1,000 kW light-duty rating may be relevant.

For a more demanding constant-torque application, the 800 kW heavy-duty rating may be the appropriate reference.

The actual motor full-load current should always be checked before final selection.

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5. Mechanical Specifications

The 20G11LF960JN0NNNNN is a large industrial drive and is not comparable in physical size with compact wall-mounted drives.

It is an 800 mm deep MCC-style configuration.

Mechanical Parameter	Specification
Model	20G11LF960JN0NNNNN
Mechanical Style	MCC Style
Frame	Frame 9
Depth	800 mm class
Width	Configuration-dependent
Height	Configuration-dependent
Overall H × W × D	Configuration-dependent
Enclosure	Type 1
Protection	IP20
Cooling	Air Cooled
Mounting	Cabinet / MCC
Cable Entry	Industrial cabinet arrangement
Service Space	Required
Ventilation Space	Required
Weight (kg)	Configuration-dependent
Shipping Weight (kg)	Configuration-dependent

The 800 mm dimension refers to the mechanical depth class.

It should not be interpreted as meaning that the entire installed assembly is exactly 800 mm high by 800 mm wide by 800 mm deep.

The complete installation can require additional space for cables, ventilation, maintenance and electrical connections.

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6. Dimensions and Weight

For engineering and purchasing purposes, the mechanical information should be treated carefully.

The exact width and height can depend on the complete physical arrangement.

The same applies to the final shipping weight.

Item	Specification
Model	20G11LF960JN0NNNNN
Mechanical Depth	800 mm class
Width	Configuration-dependent
Height	Configuration-dependent
Complete Dimensions	Configuration-dependent
Basic Equipment Weight (kg)	Configuration-dependent
Packaged Assembly Weight (kg)	Configuration-dependent
Shipping Weight (kg)	Configuration-dependent
Cabinet Weight (kg)	Configuration-dependent
Required Clearance	Additional space required
Installation Space	Larger than basic drive dimensions

For this type of large industrial drive, assigning one exact weight without knowing the complete physical package can be misleading.

The final installation should therefore use the mechanical configuration and dimensional information associated with the actual unit being purchased or replaced.

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7. Product Configuration

The catalog number identifies several important characteristics of the product.

Configuration Feature	20G11LF960JN0NNNNN
AC Input	Yes
Precharge	Yes
DC Terminals	Yes
Air Cooling	Yes
Filtering	Yes
CM Jumper	Installed
Dynamic Braking	None
Operator Interface	Blank / No HIM
Mechanical Style	MCC Style
Mechanical Depth	800 mm
Frame	Frame 9
Voltage	690 VAC
Current	960 A
Duty Class	1,000 / 900 / 800 kW LD/ND/HD class
Industrial Communication	Embedded EtherNet/IP

The JN0NNNNN configuration should not be casually treated as interchangeable with every other 960 A PowerFlex 755 model.

Models with different suffixes can have different configuration options.

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8. Product Introduction

The PowerFlex 755 platform is designed for large industrial motor-control applications.

The 20G11LF960JN0NNNNN is one of the high-current configurations within this family.

Its main function is to control the speed and operating behavior of a large three-phase AC motor.

Instead of supplying the motor with fixed-frequency power continuously, the drive produces a controlled output whose frequency and voltage can be adjusted according to the required operating condition.

This allows a large motor to operate at different speeds.

For industrial equipment, this can provide much greater control over the process.

For example, a large pump may not need maximum flow throughout the entire production cycle.

A large ventilation fan may need different airflow depending on the production load.

A conveyor may require slow acceleration when heavily loaded.

A blower may need to respond to changing process pressure.

A large process motor may need a specific speed profile rather than simply running continuously at full speed.

The drive provides the electrical control required for these applications.

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9. How the Drive Works

The basic operating arrangement can be represented as:

690 VAC Three-Phase Supply → PowerFlex 755 → Variable-Frequency Output → AC Motor → Mechanical Load

The drive receives the incoming electrical supply and controls the electrical power delivered to the motor.

The motor can then operate at a controlled speed.

A typical automated system can be arranged as:

PLC / Controller → Industrial Network → PowerFlex 755 → Motor

The controller can send:

• Start commands
• Stop commands
• Speed references
• Direction commands
• Reset commands
• Process references
• Operating-mode commands

The drive can return:

• Running status
• Speed feedback
• Current information
• Fault status
• Alarm information
• Drive status
• Diagnostic information

This makes the drive an active part of the overall automation system.

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10. Main Applications

10.1 Large Water Pumps

Large water pumps are an important application for this drive.

Potential applications include:

• Water-transfer stations
• Industrial water circulation
• Cooling-water systems
• Water treatment
• Wastewater pumping
• Mine dewatering
• Process-water systems
• Large irrigation systems
• Utility pumping

Variable-speed operation allows the pump to respond to changing flow requirements.

Instead of continuously operating at maximum speed, the motor can be controlled according to the required process condition.

This can also reduce mechanical stress and improve operating flexibility.

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11. Large Fans and Ventilation Systems

Large industrial fans can require hundreds of kilowatts of motor power.

The drive is well suited to large variable-torque fan applications.

Typical examples include:

• Mine ventilation
• Furnace fans
• Exhaust systems
• Combustion-air fans
• Cooling fans
• Industrial ventilation
• Large air-handling systems
• Process ventilation

The ability to control fan speed allows the airflow to follow the actual process requirement.

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12. Mining Conveyors

Large mining conveyors can have substantial mechanical inertia.

Starting a heavily loaded conveyor directly can place considerable stress on the belt, gearbox, coupling and drive system.

A variable-frequency drive allows the motor to accelerate gradually.

Potential applications include:

• Ore conveyors
• Coal conveyors
• Aggregate conveyors
• Bulk-material handling
• Port conveyors
• Mining transfer systems
• Long-distance belt conveyors

Controlled acceleration is particularly useful when the mechanical system needs a smooth torque transition.

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13. Large Blowers

Large industrial blowers can also require high-power motors.

Typical applications include:

• Furnace air
• Combustion air
• Process air
• Dust collection
• Exhaust systems
• Industrial ventilation
• Material-processing equipment

The drive can adjust blower speed to match changing process requirements.

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14. Compressors

Large compressors can require substantial motor current.

The drive can be considered for compressor applications where variable-speed motor control is appropriate.

The final application should take into account:

• Compressor type
• Motor rating
• Starting torque
• Acceleration time
• Speed range
• Process requirements
• Mechanical inertia
• Deceleration requirements

A drive that is electrically suitable may still require additional application analysis for a particular compressor.

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15. Heavy Industrial Machinery

The product can also be considered for large rotating machinery and process equipment.

Possible applications include:

• Heavy process machines
• Large mixers
• Industrial mills
• Material-processing equipment
• Large production machines
• Bulk-material equipment
• Heavy-duty auxiliary systems

The exact suitability depends on the motor and mechanical load.

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16. Main Product Advantages

16.1 960 A High-Current Capability

The 960 A rating is the defining feature of this model.

It allows the drive to operate large industrial motors that require very high current.

This makes the model appropriate for applications where smaller drive frames are no longer sufficient.

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16.2 690 VAC Industrial Voltage

The 690 VAC class is suitable for high-power industrial motor systems.

Large motors can require very high current, and using a higher voltage class helps keep the current within a practical range for high-power installations.

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16.3 Megawatt-Class Power

The approximately 1,000 kW light-duty rating places this drive in the megawatt-class range.

This makes it appropriate for very large pumps, fans and other variable-torque equipment.

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16.4 Variable-Speed Operation

A major benefit of the drive is the ability to vary motor speed.

This allows the machine to operate according to actual process requirements rather than being limited to a fixed motor speed.

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16.5 Controlled Acceleration

Large motors can have substantial inertia.

Gradual acceleration can reduce mechanical shock.

This can be particularly useful for:

• Conveyors
• Pumps
• Fans
• Blowers
• Large rotating equipment

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16.6 Controlled Deceleration

The drive can also provide controlled stopping.

This can reduce sudden mechanical stress and allow the machine to follow a defined stopping profile.

Applications involving very high inertia should be evaluated separately because deceleration can produce significant energy on the DC bus.

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16.7 Industrial Communication

The PowerFlex 755 platform includes industrial communication capability.

This allows the drive to be incorporated into an automated production system.

The controller can monitor the drive and issue operating commands without requiring every operation to be performed locally.

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16.8 Diagnostic Information

A large drive can provide considerably more information than a conventional starter.

Diagnostic information can assist maintenance personnel in identifying problems related to:

• Current
• Voltage
• Motor operation
• Drive faults
• Communication
• Overload
• Thermal conditions

This can reduce troubleshooting time.

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17. Filtering and CM Jumper Configuration

The 20G11LF960JN0NNNNN uses a filtered configuration with the CM jumper installed.

This characteristic should be considered during system design.

The filter and common-mode configuration interact with the overall electrical system, including:

• Grounding
• Motor cable construction
• Cable length
• Motor insulation
• EMC requirements
• Leakage current
• Electrical-system topology

The factory configuration should therefore be considered as part of the complete installation rather than being treated as an isolated feature.

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18. Dynamic Braking

The model is specified with no dynamic braking.

This is an important consideration for applications with high mechanical inertia or frequent rapid stopping.

Examples include:

• Large conveyors
• Large fans
• Centrifugal machines
• High-inertia process equipment
• Certain rotating production machines

When a large motor decelerates, mechanical energy can be transferred back into the electrical system.

If the application requires rapid deceleration, the braking and regenerative-energy requirements should be evaluated during engineering.

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19. Operator Interface

The model is configured with a blank / no HIM arrangement.

This means the drive should be considered primarily as an integrated industrial control component rather than as a unit selected around a permanently installed local operator panel.

In an automated plant, control can instead be handled through:

• PLC
• Industrial network
• External HMI
• Control cabinet
• Remote operator station

This configuration can be useful where the machine is centrally controlled.

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20. Communication and Control

The PowerFlex 755 architecture is suitable for industrial automation.

A typical arrangement can be represented as:

Component	Function
PLC	Main machine controller
Industrial Ethernet	Drive communication
PowerFlex 755	Motor speed and torque control
Motor	Mechanical power generation
Process Equipment	Pump, fan, conveyor, blower or other load
HMI	Operator monitoring and control

The drive can receive speed references and operating commands while returning status and diagnostic information.

This is particularly useful in large plants where many drives must be monitored from a central control room.

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21. Cooling System

The drive uses air cooling.

Because the unit handles very high electrical power, thermal management is an important part of the installation.

The electrical room or cabinet should provide sufficient airflow.

Hot exhaust air should not be allowed to circulate back into the drive’s cooling intake.

The installation should therefore consider:

• Airflow
• Cabinet ventilation
• Room temperature
• Dust
• Filter maintenance
• Fan condition
• Heat dissipation
• Service access

Poor ventilation can shorten the service life of power electronics.

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22. Environmental Considerations

Environmental Factor	Consideration
Cooling	Air cooled
Enclosure	Type 1
Protection	IP20
Water Exposure	Additional protection required
Dust	Appropriate enclosure/environment required
Chemical Exposure	Evaluate before installation
Ambient Temperature	Must remain within applicable limits
Humidity	Must remain within applicable limits
Vibration	Application dependent
Altitude	Application dependent
Ventilation	Required
Maintenance Access	Required

The IP20 / Type 1 arrangement should not be regarded as a sealed outdoor enclosure.

For outdoor, wet, dusty or chemically aggressive environments, suitable additional protection should be provided.

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23. Installation Requirements

A drive of this size requires careful mechanical and electrical planning.

The installation should include adequate space for:

• Incoming power cables
• Motor cables
• Grounding
• Ventilation
• Maintenance
• Control wiring
• Network wiring
• Protection equipment
• Lifting
• Cable bending radius

The physical space around the equipment should not be designed only around the nominal drive dimensions.

Large power cables and service access can require substantial additional space.

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24. Motor Selection

The motor should be checked for the following parameters before using this drive:

Motor Parameter	Why It Matters
Rated Voltage	Must be compatible with the drive system
Full-Load Current	Primary drive-sizing parameter
Rated Power	Determines approximate drive capacity
Frequency	Determines operating range
Speed	Determines control requirements
Torque	Determines duty selection
Starting Torque	Important for acceleration
Inertia	Important for acceleration/deceleration
Insulation	Important for inverter operation
Cable Length	Important for output-waveform effects
Maximum Speed	Important for mechanical safety

The motor’s actual current should be compared with the applicable drive duty rating.

The largest available kW number should not automatically be used as the selection basis.

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25. Same-Series / Closely Related Models

The following five models are useful when comparing high-power PowerFlex 755 configurations around the 960 A class.

Model	Series	Voltage	Current	LD Power Class	ND Power Class	HD Power Class	Dimensions	Weight (kg)
20G11LF710JN0NNNNN	PowerFlex 755	690 VAC	710 A	800 kW class	710 kW class	590 kW class	800 mm class	Configuration-dependent
20G11LF765JN0NNNNN	PowerFlex 755	690 VAC	765 A	850 kW class	750 kW class	630 kW class	800 mm class	Configuration-dependent
20G11LF795JN0NNNNN	PowerFlex 755	690 VAC	795 A	900 kW class	800 kW class	710 kW class	800 mm class	Configuration-dependent
20G11LF825JN0NNNNN	PowerFlex 755	690 VAC	825 A	High-power class	High-power class	High-power class	800 mm class	Configuration-dependent
20G11LF960JN2NNNNN	PowerFlex 755	690 VAC	960 A	1,000 kW class	900 kW class	800 kW class	800 mm class	Configuration-dependent

These models are useful as comparison points because they remain within the same broad high-power platform.

The 710 A, 765 A, 795 A and 825 A versions can be considered where the motor’s actual current requirement is lower than the 960 A requirement.

The 960 A versions provide the highest current capacity among these examples.

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26. Comparison of Related Models

Model	Rated Current	Voltage	Typical Position	Dimensions	Weight (kg)
20G11LF710JN0NNNNN	710 A	690 VAC	Lower high-power option	800 mm class	Configuration-dependent
20G11LF765JN0NNNNN	765 A	690 VAC	Intermediate option	800 mm class	Configuration-dependent
20G11LF795JN0NNNNN	795 A	690 VAC	High-power option	800 mm class	Configuration-dependent
20G11LF825JN0NNNNN	825 A	690 VAC	Higher-current option	800 mm class	Configuration-dependent
20G11LF960JN2NNNNN	960 A	690 VAC	960 A alternative configuration	800 mm class	Configuration-dependent

The closest comparison is the 20G11LF960JN2NNNNN, because it retains the same 690 VAC / 960 A class while using a different catalog configuration.

For replacement purposes, however, similar electrical ratings do not automatically mean that the two complete catalog numbers are interchangeable.

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27. Five Popular Models from the Same Brand

The following models cover smaller and medium-power applications within the broader product portfolio.

Model	Product Series	Voltage Class	Current Class	Typical Application	Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	480 VAC class	10 A class	Small pumps and fans	Compact frame	Configuration-dependent
25B-D017N104	PowerFlex 525	480 VAC class	17 A class	Small machinery	Compact frame	Configuration-dependent
25B-D027N114	PowerFlex 525	480 VAC class	27 A class	Conveyors, pumps and fans	Compact frame	Configuration-dependent
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	77 A class	Medium/high-power machinery	Frame-dependent	Configuration-dependent
20G11LF960JN2NNNNN	PowerFlex 755	690 VAC	960 A	Very large industrial motors	800 mm class	Configuration-dependent

These products should not be treated as direct replacements for one another.

They represent different motor-power ranges and application categories.

The smaller models are more suitable for compact machinery, while the PowerFlex 753 and PowerFlex 755 platforms address substantially larger industrial systems.

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28. Application Comparison

Application	Suitable Model	Main Reason
Small pump	25B-D010N104	Compact lower-power drive
Small fan	25B-D017N104	Suitable for smaller motor systems
Small conveyor	25B-D027N114	General-purpose industrial control
Medium industrial motor	20F11ND077AA0NNNNN	Higher-power capability
Large pump	20G11LF795JN0NNNNN	High-current 690 VAC class
Large fan	20G11LF825JN0NNNNN	Higher-current high-power configuration
Very large pump	20G11LF960JN0NNNNN	960 A capacity
Large mining conveyor	20G11LF960JN0NNNNN	High-current controlled motor operation
Large blower	20G11LF960JN0NNNNN	High-power variable-speed control
Very large process motor	20G11LF960JN0NNNNN	Megawatt-class drive capacity

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29. Maintenance Recommendations

Large industrial drives should be included in a structured preventive-maintenance program.

The cooling system is particularly important because high-power semiconductor equipment produces significant heat during operation.

Typical maintenance activities include:

• Inspecting cooling fans
• Checking ventilation passages
• Removing accumulated dust
• Checking electrical connections
• Checking grounding connections
• Inspecting motor cables
• Reviewing fault history
• Checking communication status
• Monitoring operating temperature
• Inspecting cabinet conditions
• Checking unusual vibration or noise
• Inspecting control wiring

The maintenance interval should be determined according to operating environment, load, temperature, dust level and plant maintenance policy.

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30. Benefits in Large Pump Applications

Large pumps frequently operate under changing process requirements.

Running a large motor continuously at full speed may not always be necessary.

With variable-speed control, the motor speed can be adjusted according to:

• Flow requirement
• Pressure requirement
• Water demand
• Process demand
• Production schedule

This can provide better process control and can potentially reduce energy consumption in suitable variable-torque systems.

The actual energy benefit depends on the hydraulic system and operating profile.

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31. Benefits in Large Fan Applications

Fan systems can also benefit significantly from variable-speed operation.

Instead of using a fixed-speed motor and controlling airflow mainly through mechanical restriction, the drive can adjust motor speed.

Possible benefits include:

• Flexible airflow
• Smoother operation
• Reduced mechanical stress
• Better process control
• Potential energy reduction
• Easier automation

These advantages are especially relevant in systems where airflow changes frequently.

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32. Benefits in Conveyor Applications

Large conveyors can be mechanically demanding.

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

This can reduce mechanical shock.

Potential benefits include:

• Reduced belt stress
• Reduced gearbox shock
• Reduced coupling stress
• Smoother starting
• Better control of loaded starts
• Improved process coordination

The drive can also provide controlled stopping where the application requires it.

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33. Benefits in Mining Applications

Mining equipment often combines very large motors with difficult operating conditions.

Typical requirements include:

• High starting torque
• Long acceleration times
• Large mechanical inertia
• Variable production rates
• Continuous operation
• High availability

The high current capacity of the 20G11LF960JN0NNNNN makes it suitable for consideration in large mining motor applications.

However, the installation environment should be evaluated carefully.

Dust, vibration, temperature and electrical-room conditions can all influence the final system design.

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34. Benefits in Process Industries

In process industries, motor speed often needs to follow a process variable.

Examples include:

• Pressure
• Flow
• Temperature
• Production rate
• Material level
• Air demand

The drive can receive a speed reference from a control system and adjust motor operation accordingly.

This makes it possible to integrate the motor into a larger automatic process-control strategy.

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35. Key Selection Advantages

Selection Factor	Benefit of 20G11LF960JN0NNNNN
High Motor Current	Supports 960 A class motors
High Motor Voltage	690 VAC industrial class
Large Motor Power	Approximately 1 MW light-duty class
Speed Control	Yes
Acceleration Control	Yes
Deceleration Control	Yes
Network Integration	Yes
Industrial Diagnostics	Yes
Air Cooling	Yes
High-Power Application	Yes
Large Pump Capability	Excellent fit
Large Fan Capability	Excellent fit
Large Conveyor Capability	Suitable with application evaluation
Large Blower Capability	Suitable
Large Process Machinery	Suitable

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36. Technical Specification Summary

Specification	Value
Model	20G11LF960JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Platform	PowerFlex 750-Series
Product Type	PowerFlex Air-Cooled 755 AC Drive
Configuration	AC Packaged Drive
Voltage	690 VAC
Phases	3 Phase Input / 3 Phase Output
Rated Current	960 A
Light-Duty Rating	1,000 kW
Normal-Duty Rating	900 kW
Heavy-Duty Rating	800 kW
Input	AC Input with Precharge
DC Terminals	Yes
Cooling	Air Cooled
Frame	Frame 9
Mechanical Style	MCC Style
Mechanical Size	800 mm
Enclosure	Type 1
IP Rating	IP20
Filtering	Filtered
CM Configuration	Jumper Installed
Dynamic Braking	None
HIM	Blank / No HIM
Network	Embedded EtherNet/IP
Input Frequency	50/60 Hz class
Output	Variable-frequency three-phase AC
Dimensions	800 mm depth class; complete dimensions configuration-dependent
Weight (kg)	Configuration-dependent
Typical Load	Large AC motor
Typical Industries	Mining, water, manufacturing, process industries
Main Function	Variable-speed motor control

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37. Final Product Assessment

The 20G11LF960JN0NNNNN is a high-power PowerFlex 755 AC drive designed for very large industrial motor applications.

Its 960 A current rating, 690 VAC three-phase architecture, and approximately 1,000 kW light-duty / 900 kW normal-duty / 800 kW heavy-duty power class place it firmly in the high-power industrial category.

The drive is especially well suited to applications where motor speed needs to be controlled rather than simply switched on and off.

Large pumps, fans, blowers, conveyors and process machines can all benefit from controlled acceleration, variable-speed operation and automated process control.

Another important advantage is its ability to operate as part of a larger industrial automation system.

The drive can be incorporated into a control architecture where the PLC or process controller provides speed and operating commands while the drive supplies motor status and diagnostic information.

The air-cooled construction makes the unit suitable for appropriately designed industrial electrical rooms and cabinet installations.

Because the equipment operates at very high power, thermal management and installation engineering are important.

The 800 mm mechanical size also means that the product should be treated as large electrical equipment rather than as a compact inverter.

For mechanical planning, the complete width, height and final equipment weight should be confirmed for the exact physical configuration.

The same principle applies to transportation and lifting.

The model is also configured with no dynamic braking, so applications involving rapid stopping or large rotating inertia should be evaluated carefully.

The filtering and CM-jumper configuration should likewise be considered together with the motor cable, grounding arrangement and overall electrical system.

Overall, the 20G11LF960JN0NNNNN is a strong choice for very large industrial AC motors where high current capacity, 690 VAC operation, variable-speed control and industrial automation integration are required.

Its primary strengths are its large current capacity, megawatt-class power capability, industrial control functions, networking capability and suitability for large process machinery.

For replacement work, the complete catalog number should always be matched.

A visually similar 960 A drive with a different suffix may have different configuration options and should not automatically be assumed to be a direct substitute.

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38. Quick Reference Table

Item	Specification
Model	20G11LF960JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Platform	PowerFlex 750-Series
Voltage	690 VAC
Current	960 A
Light-Duty Power	1,000 kW
Normal-Duty Power	900 kW
Heavy-Duty Power	800 kW
Input	3 Phase AC with Precharge
Output	3 Phase Variable-Frequency AC
Cooling	Air Cooled
Frame	Frame 9
Mechanical Size	800 mm
Mechanical Style	MCC Style
Enclosure	Type 1
IP Rating	IP20
Filter	Yes
CM Jumper	Installed
Dynamic Braking	None
DC Terminals	Yes
Network	Embedded EtherNet/IP
Operator Interface	Blank / No HIM
Dimensions	800 mm depth class; other dimensions configuration-dependent
Weight (kg)	Configuration-dependent
Primary Applications	Pumps, fans, conveyors, blowers, compressors
Application Level	High-power industrial
Power Class	Approximately 1 MW
Main Advantage	High-current variable-speed control for very large AC motors