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20G11LE900JN0NNNNN

PowerFlex 755 High-Power Air-Cooled AC Drive

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1. Product Overview

The 20G11LE900JN0NNNNN is a high-power industrial AC variable frequency drive designed for large three-phase motor applications.

It belongs to the PowerFlex 755 series and is intended for applications where a large motor requires adjustable speed, controlled acceleration, high current capacity, reliable industrial communication and integration with a centralized automation system.

This model is rated at 900 A and is designed for a 600 VAC, three-phase electrical system.

Its published motor ratings are:

• 1,000 HP Light Duty
• 950 HP Normal Duty
• 800 HP Heavy Duty

The drive uses a Frame 9 construction with forced-air cooling and an 800 mm deep MCC-style Type 1 / IP20 configuration.

The model includes embedded EtherNet/IP, making it suitable for integration with industrial controllers, operator interfaces and plant-level automation systems.

The catalog configuration also specifies AC input with precharge and DC terminals, filtered construction, CM jumper installed, no dynamic braking and no local HIM.

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2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	High-Power AC Variable Frequency Drive
Catalog Number	20G11LE900JN0NNNNN
Construction	Air-Cooled
Voltage Class	600 VAC
Phase	3 Phase
Rated Current	900 A
Frame	Frame 9
Installation Style	MCC Style
Cooling	Forced Air
Enclosure	Type 1 / IP20
Communication	Embedded EtherNet/IP
Input	AC Input with Precharge and DC Terminals
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM

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3. Main Technical Parameters

Parameter	Specification
Model	20G11LE900JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	High-Power AC Drive
Voltage	600 VAC
Input Phase	3 Phase
Rated Current	900 A
Light Duty Rating	1,000 HP
Normal Duty Rating	950 HP
Heavy Duty Rating	800 HP
Frame Size	Frame 9
Cooling Method	Forced Air
Enclosure	Type 1 / IP20
Installation Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Input Configuration	AC Input with Precharge and DC Terminals
Communication	Embedded EtherNet/IP
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Motor Type	Three-Phase AC Motor
Intended Application	Large Industrial Motor Control

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4. Electrical Rating

The 900 A current rating is the most important electrical characteristic of this model.

This places the drive in the high-power category and makes it suitable for very large industrial motors.

The drive’s published ratings vary according to duty classification.

Duty Classification	Rated Motor Capacity
Light Duty	1,000 HP
Normal Duty	950 HP
Heavy Duty	800 HP
Current Rating	900 A
Voltage Class	600 VAC
Input	3 Phase AC

The difference between Light Duty, Normal Duty and Heavy Duty is important.

A motor driving a centrifugal pump may have a very different load profile from a crusher or heavily loaded conveyor.

Therefore, the motor’s actual nameplate current and mechanical duty should always be considered together with the horsepower rating.

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5. Product Introduction

The 20G11LE900JN0NNNNN is designed to control the speed and operation of large AC motors in industrial environments.

A conventional motor starter generally provides basic starting and stopping.

A variable frequency drive provides considerably more control.

The drive can regulate the electrical power supplied to the motor so that the motor can operate at different speeds.

This allows the motor to better match the requirements of the machinery and production process.

The drive can be used as the central motor-control component between the plant electrical system and the motor.

A typical arrangement is:

Three-Phase Power → Variable Frequency Drive → AC Motor

The drive can also communicate with a plant automation system:

PLC / Controller → EtherNet/IP → Drive → Motor

This architecture is particularly useful for large automated industrial installations.

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6. PowerFlex 755 Series

The PowerFlex 755 series is designed for demanding industrial motor-control applications.

The series covers a wide range of motor sizes and electrical configurations.

The 20G11LE900JN0NNNNN represents one of the large-frame configurations intended for high-power applications.

The series can be configured according to different requirements, including:

• Motor voltage
• Motor current
• Power rating
• Duty classification
• Enclosure type
• Cooling arrangement
• Communication
• Filtering
• Braking
• Safety
• Operator interface
• Installation method

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7. Configuration Details

The model number identifies a specific configuration.

Configuration Item	Specification
Series	PowerFlex 755
Current	900 A
Voltage Class	600 VAC
Phase	Three Phase
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Installation	800 mm Deep MCC Style
Input	AC Input with Precharge and DC Terminals
Communication	Embedded EtherNet/IP
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM

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8. Physical Dimensions

The specified configuration is identified as an 800 mm deep MCC-style drive.

The 800 mm dimension is therefore the most clearly defined physical dimension for this configuration.

Dimension / Mechanical Parameter	Specification
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Frame	Frame 9
Installation Style	MCC Style
Enclosure	Type 1 / IP20
Cooling	Forced Air
Service Clearance	Installation-dependent
Cable Entry Space	Installation-dependent
Weight (kg)	Configuration-dependent

For a large-frame industrial drive, the complete mechanical package should be considered when preparing an installation layout.

The actual width and height should be taken from the applicable mechanical drawing for the exact assembly rather than estimated from the catalog number alone.

This is particularly important when several high-power drives are installed side by side.

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9. Weight

The exact equipment weight should not be treated as a universal fixed number for every installation.

The final weight can be affected by the packaged mechanical arrangement, enclosure construction and installed accessories.

Weight Category	Specification
Drive Weight	Configuration-dependent
Cabinet / MCC Assembly Weight	Configuration-dependent
Shipping Weight	Configuration-dependent
Installed Assembly Weight	Configuration-dependent
Weight (kg)	Configuration-dependent

For transportation, lifting, floor-loading and installation planning, the actual equipment documentation should be used.

Using an estimated weight for a Frame 9 high-power drive could lead to incorrect lifting or structural calculations.

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10. Cooling System

The drive uses forced-air cooling.

Large power semiconductor components generate substantial heat during operation.

The cooling system is designed to move air through the power section and remove heat from the drive.

Good airflow is therefore an important part of installation.

The surrounding environment should be evaluated for:

• Ambient temperature
• Dust
• Moisture
• Ventilation
• Airflow
• Altitude
• Cabinet arrangement
• Cooling-fan condition
• Maintenance access

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11. Enclosure and Installation

The specified model uses a Type 1 / IP20 configuration.

It is intended for suitable industrial electrical environments where the drive can be protected from unsuitable environmental exposure.

Typical installation locations include:

• Electrical rooms
• Motor-control centers
• Industrial control rooms
• Manufacturing plants
• Process facilities
• Utility equipment rooms
• Large machinery control areas

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12. 600 VAC Industrial System

The 600 VAC class makes this model appropriate for high-power industrial electrical systems.

Large industrial motors may use higher voltage systems to support substantial power transmission.

The 900 A rating combined with the 600 VAC class places this drive among the high-capacity configurations in the PowerFlex 755 family.

This combination is particularly useful for large motors where both voltage and current requirements are substantial.

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13. 900 A Current Capability

The 900 A rating gives the drive substantial capacity for high-power motors.

This allows the drive to be considered for machinery requiring hundreds of amperes of motor current.

Potential applications include:

• Large pumps
• Large fans
• Large conveyors
• Compressors
• Crushers
• Mixers
• Mining equipment
• Bulk-material systems
• Large process machinery

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14. Application — Large Pumps

Large pumps are an important application for high-power variable frequency drives.

Pump demand can change according to production conditions.

A drive allows the pump motor to operate at different speeds.

For example, the motor can run faster when more flow is required and slower when process demand is reduced.

Potential applications include:

• Water-transfer systems
• Cooling-water systems
• Industrial process pumps
• Wastewater systems
• Mining-water systems
• Large utility pumps
• Process-fluid circulation

Main Pumping Benefits

Benefit	Description
Variable Speed	Matches pump speed to process demand
Smooth Start	Reduces abrupt motor acceleration
Flow Control	Helps regulate process flow
Pressure Control	Supports pressure-based control
Mechanical Stress Reduction	Reduces sudden starting torque
Process Flexibility	Allows different operating points
Energy Potential	Can reduce unnecessary full-speed operation

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15. Application — Large Fans and Blowers

Large fans can consume significant amounts of electrical power.

In many applications, airflow requirements vary throughout the production process.

Operating a fan continuously at maximum speed may therefore be unnecessary.

The drive can regulate the motor speed to match the required airflow.

Typical applications include:

• Industrial ventilation
• Dust collection
• Furnace ventilation
• Process-air systems
• Cooling systems
• Mining ventilation
• Large exhaust systems
• Industrial blowers

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16. Application — Conveyors

Large conveyors can contain significant mechanical inertia.

A direct start can create a sudden torque increase throughout the mechanical system.

A variable frequency drive can provide a controlled acceleration profile.

This can be particularly valuable for:

• Long conveyors
• Heavy-load conveyors
• Mining conveyors
• Bulk-material conveyors
• Ore conveyors
• Industrial transfer systems

Conveyor Benefits

• Controlled acceleration
• Reduced mechanical shock
• Reduced belt stress
• Reduced coupling stress
• Reduced gearbox stress
• Better material-flow control
• Adjustable operating speed

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17. Application — Mining Equipment

Mining machinery often uses large motors.

The 900 A drive is suitable for evaluation in applications where the motor electrical characteristics fall within the drive’s rating.

Potential applications include:

• Ore conveyors
• Crushers
• Large pumps
• Ventilation fans
• Material-handling systems
• Processing machinery
• Bulk-material equipment

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18. Application — Crushers

Crushers can create demanding motor loads.

The mechanical system may experience significant torque during startup and changes in material load.

Variable-speed control can provide a more controlled motor-starting process.

Potential applications include:

• Aggregate processing
• Mineral processing
• Mining
• Cement processing
• Bulk-material processing

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19. Application — Compressors

Large compressors can require substantial motor power.

A variable frequency drive allows the motor speed to be adjusted according to process requirements.

This can provide:

• Controlled startup
• Adjustable speed
• Process flexibility
• Centralized monitoring
• Networked control
• Reduced mechanical shock

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20. Application — Mixers

Large mixers may require considerable starting torque.

The motor can be accelerated in a controlled manner instead of immediately reaching full operating speed.

This is useful when the mixer contains material before startup.

Potential applications include:

• Chemical processing
• Cement production
• Mineral processing
• Industrial blending
• Bulk-material processing
• Manufacturing systems

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21. Application — Material Handling

High-power variable frequency drives can be used in large material-handling systems.

Typical equipment includes:

• Conveyors
• Transfer systems
• Bulk-material equipment
• Mining material handling
• Industrial production lines
• Processing equipment

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22. Application — Process Machinery

The drive is suitable for process machinery where motor speed needs to change according to production requirements.

Examples include:

• Process pumps
• Fans
• Blowers
• Compressors
• Mixers
• Conveyors
• Large rotating machinery

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23. Main Product Advantages

23.1 High Current Capacity

The 900 A current rating is the most obvious advantage.

It provides enough capacity for very large industrial motors.

This makes the product substantially different from compact machine-level drives.

23.2 High Horsepower Capability

The drive provides approximately:

• 1,000 HP Light Duty
• 950 HP Normal Duty
• 800 HP Heavy Duty

This makes it suitable for substantial industrial equipment.

23.3 Variable-Speed Operation

The motor can operate at different speeds.

This allows the machinery to respond more closely to changing process requirements.

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

23.4 Controlled Acceleration

Controlled acceleration can reduce sudden mechanical loading.

This is especially useful for large:

• Conveyors
• Fans
• Pumps
• Mixers
• Compressors
• Rotating machinery

23.5 Industrial Network Integration

Embedded EtherNet/IP allows the drive to communicate with an industrial automation system.

The drive can exchange commands, status information and diagnostic information with the controller.

23.6 Large-Scale Industrial Installation

The 800 mm deep MCC-style configuration is suitable for large electrical installations.

It is designed more for plant-level equipment than for small machine-mounted applications.

23.7 Forced-Air Cooling

Forced-air cooling provides a practical method of removing heat from a high-power drive.

Proper ventilation remains essential for reliable operation.

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24. EtherNet/IP Communication

The embedded EtherNet/IP function allows the drive to become part of a networked automation system.

Typical information exchanged with a controller can include:

Data	Purpose
Run Command	Start motor
Stop Command	Stop motor
Speed Reference	Set speed
Actual Speed	Monitor speed
Output Frequency	Monitor drive operation
Motor Current	Monitor motor load
Drive Status	Monitor operating state
Warning	Monitor abnormal conditions
Fault	Monitor faults
Diagnostic Information	Assist troubleshooting

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25. Centralized Control

The drive is suitable for centralized control architectures.

A typical system can be structured as:

PLC / Controller → EtherNet/IP → 20G11LE900JN0NNNNN → Large AC Motor

An HMI or SCADA system can then provide a centralized interface.

Operators can monitor:

• Speed
• Current
• Frequency
• Status
• Warning conditions
• Fault conditions
• Operating commands

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26. Blank / No HIM Configuration

The specified model has a Blank / No HIM configuration.

HIM means Human Interface Module.

A local HIM can provide a display and keypad for operating and configuring the drive.

The absence of a local HIM can be advantageous when the drive is intended to be controlled centrally through:

• PLC
• HMI
• SCADA
• Control room
• Industrial network

This type of arrangement is common when many drives are managed from one central control system.

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27. Dynamic Braking

The specified configuration has no dynamic braking.

This should be considered during application selection.

If the load has high inertia or requires rapid stopping, the braking requirements should be evaluated separately.

Particular attention is recommended for:

• High-inertia loads
• Rapid deceleration
• Frequent stopping
• Regenerative loads
• Vertical machinery
• High-speed rotating equipment

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28. CM Jumper

The specified configuration has the CM jumper installed.

This is a configuration detail associated with the drive’s common-mode and grounding arrangement.

It should be considered together with the overall grounding system.

The installation should be designed consistently with the electrical system, motor cable arrangement and grounding requirements.

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29. EMC Filtering

The model includes a filtered configuration.

Electromagnetic compatibility is important when installing large variable frequency drives.

A complete installation should pay attention to:

• Grounding
• Bonding
• Motor cable routing
• Cable shielding
• Control-cable routing
• Power-cable separation
• Cabinet design
• Motor cable length

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30. Input Configuration

The model uses an AC input with precharge and DC terminals.

This configuration is intended for high-power drive installations where the input and DC bus arrangement form part of the overall system design.

The electrical installation should be designed around the drive’s rated input characteristics and the applicable protection equipment.

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31. Maintenance Requirements

A large industrial drive should be included in the plant’s preventive-maintenance program.

Maintenance Area	Inspection
Cooling Fans	Check fan operation
Airflow	Confirm unobstructed airflow
Cabinet	Check cleanliness
Power Connections	Inspect for signs of overheating or looseness
Grounding	Verify grounding integrity
Motor Cables	Inspect connections and insulation
Control Wiring	Inspect connections
Network	Check communication
Fault History	Review recurring faults
Environment	Monitor temperature and contamination
Ventilation	Confirm sufficient cooling
Mechanical Assembly	Check installation condition

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32. Installation Environment

The drive should be installed in a suitable industrial environment.

Important considerations include:

• Ambient temperature
• Humidity
• Dust
• Air quality
• Ventilation
• Altitude
• Electrical noise
• Grounding
• Cable routing
• Service clearance

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33. Physical Installation Summary

Mechanical Parameter	Specification
Frame	Frame 9
Enclosure	Type 1 / IP20
Installation Style	MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Cooling	Forced Air
Mounting	Industrial MCC Installation
Weight (kg)	Configuration-dependent
Service Space	Must be determined from installation arrangement
Cable Space	Must be considered during cabinet planning

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34. Five Same-Series / Related Models

The following models are useful for comparison within the high-power PowerFlex 755 family.

Model	Series	Voltage	Current	Light Duty	Normal Duty	Heavy Duty	Depth	Weight (kg)
20G11LE760JN0NNNNN	PowerFlex 755	600 VAC	760 A	900 HP	800 HP	700 HP	800 mm	Configuration-dependent
20G11LE825JN0NNNNN	PowerFlex 755	600 VAC	825 A	950 HP	900 HP	750 HP	800 mm	Configuration-dependent
20G11LE900JN2NNNNN	PowerFlex 755	600 VAC	900 A	1,000 HP	950 HP	800 HP	800 mm	Configuration-dependent
20G11LE900JN4NNNNN	PowerFlex 755	600 VAC	900 A	1,000 HP	950 HP	800 HP	800 mm	Configuration-dependent
20G11LE980JN0NNNNN	PowerFlex 755	600 VAC	980 A	1,100 HP	1,000 HP	900 HP	800 mm	Configuration-dependent

These five models are closely related to the target model.

The 760 A and 825 A versions are lower-current alternatives.

The 900 A JN2 and JN4 versions retain the same basic current and horsepower class while using different catalog configurations.

The 980 A version provides additional current capacity for larger motor requirements.

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35. Comparison — 760 A Model

Parameter	20G11LE760JN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Current	760 A
Light Duty	900 HP
Normal Duty	800 HP
Heavy Duty	700 HP
Cooling	Forced Air
Frame	High-Power Frame
Enclosure	Type 1 / IP20
Depth	800 mm
Communication	Embedded EtherNet/IP
Weight (kg)	Configuration-dependent

This model is useful when the motor current requirement is lower than 900 A.

It can reduce unnecessary oversizing when the actual motor load is suitable for the lower current rating.

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36. Comparison — 825 A Model

Parameter	20G11LE825JN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Current	825 A
Light Duty	950 HP
Normal Duty	900 HP
Heavy Duty	750 HP
Cooling	Forced Air
Frame	High-Power Frame
Enclosure	Type 1 / IP20
Depth	800 mm
Communication	Embedded EtherNet/IP
Weight (kg)	Configuration-dependent

This is a particularly close alternative to the 900 A model.

It provides a slightly lower current capacity while remaining within the same high-power family.

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37. Comparison — 900 A JN2

Parameter	20G11LE900JN2NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Current	900 A
Light Duty	1,000 HP
Normal Duty	950 HP
Heavy Duty	800 HP
Cooling	Forced Air
Frame	Frame 9
Enclosure	Type 1 / IP20
Depth	800 mm
Communication	Embedded EtherNet/IP
Weight (kg)	Configuration-dependent

This model has the same principal 900 A electrical class.

The difference is primarily the configuration represented by the catalog number.

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38. Comparison — 900 A JN4

Parameter	20G11LE900JN4NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Current	900 A
Light Duty	1,000 HP
Normal Duty	950 HP
Heavy Duty	800 HP
Cooling	Forced Air
Frame	Frame 9
Enclosure	Type 1 / IP20
Depth	800 mm
Communication	Embedded EtherNet/IP
Weight (kg)	Configuration-dependent

This is another close configuration within the same high-power 900 A family.

It can be considered when a different option arrangement is required.

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39. Comparison — 980 A Model

Parameter	20G11LE980JN0NNNNN
Series	PowerFlex 755
Voltage	600 VAC
Current	980 A
Light Duty	1,100 HP
Normal Duty	1,000 HP
Heavy Duty	900 HP
Cooling	Forced Air
Frame	High-Power Frame
Enclosure	Type 1 / IP20
Depth	800 mm
Communication	Embedded EtherNet/IP
Weight (kg)	Configuration-dependent

The 980 A model is the higher-capacity alternative in this comparison group.

It is suitable for applications where the motor current requirement exceeds the practical range of the 900 A drive.

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40. Five Commonly Selected Models from the Same Brand

The following models represent different capacity levels within the same brand’s industrial AC-drive portfolio.

They are useful as comparison points when selecting a drive for a particular motor size.

Model	Product Family	Voltage Class	Current / Capacity	Typical Application	Dimensions	Weight (kg)
25B-D010N104	PowerFlex 525	480 VAC class	10 A class	Small machinery	Configuration-dependent	Configuration-dependent
25B-D017N104	PowerFlex 525	480 VAC class	17 A class	Small / medium machinery	Configuration-dependent	Configuration-dependent
25B-D027N114	PowerFlex 525	480 VAC class	27 A class	Medium machinery	Configuration-dependent	Configuration-dependent
20F11ND077AA0NNNNN	PowerFlex 753	480 VAC class	77 A class	Medium / large motors	Configuration-dependent	Configuration-dependent
20G11LE900JN0NNNNN	PowerFlex 755	600 VAC	900 A	Very large motors	800 mm depth; other dimensions configuration-dependent	Configuration-dependent

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41. Product Size Comparison

Model	Relative Capacity	Typical Application
25B-D010N104	Small	Small pumps, fans and machines
25B-D017N104	Small / Medium	General machinery
25B-D027N114	Medium	Medium industrial equipment
20F11ND077AA0NNNNN	Medium / Large	Process equipment
20G11LE900JN0NNNNN	Very Large	Large industrial motor systems

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42. Application Matching

Application	Suitable Capacity Consideration
Large Pump	760–900 A class depending on motor
Large Fan	760–900 A class depending on motor
Heavy Conveyor	825–900 A class
Very Large Conveyor	900 A or higher
Large Compressor	825–900 A class
Large Crusher	900 A class or higher
Mining Equipment	825–980 A class depending on motor
Large Mixer	825–900 A class
Bulk Material Handling	825–980 A class
Small Machine	Smaller drive recommended

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43. Advantages Compared with a Conventional Starter

Feature	Conventional Starter	20G11LE900JN0NNNNN
Variable Speed	Limited	Yes
Controlled Acceleration	Limited	Yes
Controlled Deceleration	Limited	Yes
Network Communication	Limited	Yes
Motor Current Monitoring	Limited	Yes
Drive Diagnostics	Limited	Yes
Process Speed Control	Limited	Yes
Centralized Monitoring	Limited	Yes
Large Motor Control	Yes	Yes
Automation Integration	Limited	High

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44. Large-Motor Starting

Large motors can produce substantial electrical and mechanical effects during starting.

The drive provides a controlled acceleration process.

Instead of immediately applying the full operating condition, the drive can gradually increase motor speed.

This can reduce sudden mechanical stress on:

• Shafts
• Couplings
• Gearboxes
• Belts
• Bearings
• Drive pulleys
• Other rotating components

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45. Process Control Benefits

Variable-speed operation can make a major difference in industrial processes.

A pump can adjust flow.

A fan can adjust airflow.

A conveyor can adjust material speed.

A compressor can adjust capacity.

A mixer can adjust operating speed.

This means the drive can become an important part of the process-control system rather than simply functioning as a motor starter.

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46. Energy Efficiency Potential

The drive can create opportunities for energy reduction in applications where motor speed can be reduced according to actual process requirements.

However, energy savings depend on the specific application.

Important factors include:

• Load type
• Operating speed
• Motor efficiency
• Operating hours
• Process demand
• Mechanical efficiency
• Pump or fan characteristics
• Control strategy

Variable-torque applications such as centrifugal pumps and fans can offer particularly attractive opportunities for speed-based energy optimization.

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47. Control Architecture

A typical industrial control arrangement can be represented as:

Power System

↓

20G11LE900JN0NNNNN

↓

Large Three-Phase AC Motor

At the automation level:

PLC / Controller

↓

EtherNet/IP

↓

Drive

↓

Motor

An HMI or SCADA system can provide the operator interface.

This arrangement allows motor operation to be managed centrally.

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48. Recommended Selection Checklist

Before selecting the 20G11LE900JN0NNNNN for an actual installation, verify the following.

Selection Item	What to Check
Motor Voltage	Confirm 600 VAC-class compatibility
Motor Current	Confirm current does not exceed applicable rating
Motor HP	Compare against duty rating
Duty	Light, Normal or Heavy Duty
Load Type	Variable torque or constant torque
Starting Torque	Determine actual requirement
Overload	Determine required overload
Acceleration	Determine required acceleration time
Deceleration	Determine stopping requirements
Braking	Determine whether external braking is required
Environment	Temperature, humidity and contamination
Cooling	Confirm airflow
Installation	Confirm MCC arrangement
Communication	Confirm EtherNet/IP architecture
Cabinet Space	Confirm width, height and depth
Depth	800 mm
Weight (kg)	Confirm actual equipment weight
Service Space	Provide sufficient maintenance access

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49. Detailed Technical Specification

Category	20G11LE900JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	High-Power AC Variable Frequency Drive
Voltage Class	600 VAC
Phase	3 Phase
Rated Current	900 A
Light Duty	1,000 HP
Normal Duty	950 HP
Heavy Duty	800 HP
Frame	Frame 9
Cooling	Forced Air
Enclosure	Type 1 / IP20
Installation Style	800 mm Deep MCC Style
Depth	800 mm
Width	Configuration-dependent
Height	Configuration-dependent
Weight (kg)	Configuration-dependent
Input	AC Input with Precharge and DC Terminals
Communication	Embedded EtherNet/IP
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Motor Type	Three-Phase AC Motor
Primary Applications	Pumps, fans, conveyors, compressors, crushers, mixers and process equipment

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50. Key Advantages Summary

Advantage	Description
900 A Capacity	Suitable for very large motors
1,000 HP LD	High light-duty power capability
950 HP ND	High normal-duty capability
800 HP HD	Suitable for demanding heavy-duty applications
600 VAC	High-power industrial electrical class
Variable Speed	Flexible motor operation
Controlled Acceleration	Smoother machine starting
EtherNet/IP	Networked industrial control
Forced Air	High-power cooling
MCC Style	Suitable for large electrical installations
800 mm Depth	Defined mechanical installation depth
Filtered	Supports EMC-oriented installation
No HIM	Appropriate for centralized control
No Dynamic Braking	Clear braking configuration for system planning

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51. Difference Between 20G11LE900AN0NNNNN and 20G11LE900JN0NNNNN

The 20G11LE900JN0NNNNN is especially important because it is closely related to the 20G11LE900AN0NNNNN.

Both are 900 A, 600 VAC-class PowerFlex 755 configurations.

The JN0 model represents the newer configuration associated with the replacement of the earlier AN0 version.

Parameter	20G11LE900AN0NNNNN	20G11LE900JN0NNNNN
Series	PowerFlex 755	PowerFlex 755
Current	900 A	900 A
Voltage	600 VAC	600 VAC
Light Duty	1,000 HP	1,000 HP
Normal Duty	950 HP	950 HP
Heavy Duty	800 HP	800 HP
Frame	Frame 9	Frame 9
Cooling	Forced Air	Forced Air
Depth	800 mm	800 mm
Communication	Embedded EtherNet/IP	Embedded EtherNet/IP
Filtering	Filtered	Filtered
CM Jumper	Configuration-specific	Installed
Dynamic Braking	None	None
HIM	Blank / No HIM	Blank / No HIM
Weight (kg)	Configuration-dependent	Configuration-dependent

For replacement planning, the JN0 catalog number should be evaluated against the complete existing installation rather than assuming that every accessory, parameter and mechanical detail is automatically interchangeable.

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52. Why Select the 20G11LE900JN0NNNNN?

The model is a strong candidate when the application has several of the following characteristics:

• Very large AC motor
• 600 VAC-class electrical system
• Motor current approaching 900 A
• Large pump
• Large fan
• Heavy conveyor
• Crusher
• Compressor
• Mining machinery
• Material-handling equipment
• Need for adjustable motor speed
• Need for controlled acceleration
• EtherNet/IP automation
• Centralized motor control
• MCC-style installation

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53. Overall Product Advantages

The most important advantage of the 20G11LE900JN0NNNNN is its combination of very high current capability and industrial automation functionality.

A 900 A drive is intended for machinery far larger than the typical compact inverter.

The drive can control motor speed, provide controlled acceleration and communicate with a centralized automation system.

The PowerFlex 755 platform also provides a broad family of related configurations, allowing engineers to move upward or downward in current capacity without changing to a completely different product family.

This can simplify standardization in plants where multiple motor sizes are used.

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54. Product Application Summary

Industry / Area	Possible Application
Water Treatment	Large pumps
Utilities	Large pumps and fans
Mining	Conveyors, crushers, pumps and fans
Cement	Crushers, fans and process machinery
Steel	Fans, pumps and process equipment
Chemical Processing	Pumps, mixers and compressors
Manufacturing	Large production machinery
Material Handling	Heavy conveyors
Process Industry	Pumps, compressors and fans
Bulk Materials	Conveyors and transfer systems

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55. Final Product Summary

The 20G11LE900JN0NNNNN is a high-power PowerFlex 755 AC variable frequency drive designed for large three-phase industrial motors.

Its principal electrical rating is 900 A at the 600 VAC class.

The drive is rated for approximately 1,000 HP Light Duty, 950 HP Normal Duty and 800 HP Heavy Duty.

It uses a Frame 9, forced-air-cooled construction with an 800 mm deep MCC-style Type 1 / IP20 configuration.

The drive includes embedded EtherNet/IP, making it suitable for integration into a modern industrial automation network.

The model uses AC input with precharge and DC terminals, a filtered configuration, an installed CM jumper, no dynamic braking and a blank/no-HIM configuration.

Its high current capacity makes it appropriate for large industrial machinery such as pumps, fans, conveyors, compressors, crushers, mixers, mining equipment and material-handling systems.

The product’s variable-speed capability allows motor speed to be matched to process requirements.

Controlled acceleration can also reduce mechanical stress during startup, which can be valuable for large conveyors, pumps and other high-inertia machinery.

The embedded EtherNet/IP capability provides a practical method of integrating the drive into centralized control systems.

The 800 mm depth should be considered carefully during electrical-room and MCC planning.

The exact width, height and complete equipment weight should be confirmed from the mechanical configuration used for the particular installation. Therefore, Weight (kg) is listed as configuration-dependent rather than assigning an unreliable estimated value.

For lower current requirements, the 20G11LE760JN0NNNNN and 20G11LE825JN0NNNNN are logical related models.

For the same 900 A electrical class with different configuration options, the 20G11LE900JN2NNNNN and 20G11LE900JN4NNNNN are useful alternatives.

For applications requiring additional capacity, the 20G11LE980JN0NNNNN can be considered.

For smaller motors, the PowerFlex 525 and PowerFlex 753 families provide more appropriately sized solutions.

Overall, the 20G11LE900JN0NNNNN is best suited to large industrial motor systems where high current capacity, variable-speed operation, controlled starting, centralized automation and industrial network communication are required.

It is particularly appropriate for applications where the motor is large enough that a conventional low-power drive would not provide sufficient current capacity.

When replacing an existing drive, the motor nameplate current, voltage, duty cycle, overload requirement, braking requirement, control architecture, cabinet dimensions and actual installed weight should all be checked before final selection.