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Allen-Bradley 20G1F3C650LNDNNNNN PowerFlex 755 AC Drive

1. Product Introduction

The Allen-Bradley 20G1F3C650LNDNNNNN is a large-frame PowerFlex 755 AC Drive designed for high-power industrial motor-control applications.

It is an air-cooled, regenerative and low-harmonic drive configuration intended for demanding three-phase industrial systems. The catalog configuration is associated with a 400 VAC, three-phase supply, a 650 A normal-duty rating, and a large Frame 8 installation arrangement. The packaged-drive description also identifies a floor-mounted construction, Type 1/IP21 protection, a door-mounted HIM and TotalFORCE control.

The 20G1F3C650LNDNNNNN is therefore considerably different from a small general-purpose frequency inverter. It is intended for large motors and machinery where current capacity, controlled acceleration, controlled deceleration, regenerative energy handling and integration with an industrial automation system are important.

The model is part of a broad PowerFlex 755 catalog family. Closely related catalog numbers include 585 A, 650 A, 750 A and 770 A configurations, along with several variations of the 650 A configuration itself.

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2. Brand and Product Series

Item	Specification
Model	20G1F3C650LNDNNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Configuration	Air-Cooled AC Packaged Drive
Drive Architecture	Regenerative / Low Harmonic
Input Voltage	400 VAC class
Input Phase	3 Phase
Current Class	650 A
Normal-Duty Rating	650 A / 355 kW class
Light-Duty Rating	Approximately 400 kW / 750 A class
Heavy-Duty Rating	Approximately 315 kW / 540 A class
Frame	Frame 8
Cooling	Air Cooled
Installation	Floor Mount
Enclosure Classification	Type 1 / IP21
Control	TotalFORCE
Operator Interface	Door-Mounted HIM
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

The exact packaged-drive description identifies this model as a PowerFlex 755T regenerative and low-harmonic drive, with 400 VAC, three-phase input and Frame 8 construction. It is listed with 750 A light-duty, 650 A normal-duty and 540 A heavy-duty current classes, corresponding to approximately 400 kW, 355 kW and 315 kW, respectively.

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3. Basic Technical Parameters

Parameter	20G1F3C650LNDNNNNN
Model	20G1F3C650LNDNNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	AC Drive
Drive Configuration	Air-Cooled Packaged Drive
Input Voltage	400 VAC
Input Phase	3 Phase
Light-Duty Current	750 A
Normal-Duty Current	650 A
Heavy-Duty Current	540 A
Light-Duty Power	400 kW
Normal-Duty Power	355 kW
Heavy-Duty Power	315 kW
Input Architecture	Regenerative / Active Front End type architecture
Harmonic Performance	Low-Harmonic configuration
Frame	8
Cooling	Air Cooled
Installation	Floor Mount
Enclosure	Type 1 / IP21
HIM	Door-Mounted HIM
Control	TotalFORCE
EMI/Filtering	Standard EMI protection configuration
Motor Type	Three-Phase AC Motor
Speed Control	Yes
Torque Control	Yes
Regenerative Operation	Yes
Communication	Configuration-dependent
Feedback	Configuration-dependent
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

The key rating point is that 650 A is the normal-duty current designation, rather than the only current figure associated with the drive. The same packaged configuration is listed with different duty ratings, which is important when selecting the drive for a particular motor and load profile.

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4. Understanding the Duty Ratings

Large industrial drives are often selected according to the actual operating duty of the machine rather than simply the motor’s nominal horsepower.

For this model, the published packaged configuration identifies three important current levels.

Duty Category	Current	Approx. Power	Typical Interpretation
Light Duty	750 A	400 kW	Applications with relatively moderate overload requirements
Normal Duty	650 A	355 kW	General industrial variable-speed applications
Heavy Duty	540 A	315 kW	Applications requiring greater overload capability
Model	20G1F3C650LNDNNNNN	—	Reference catalog configuration

This distinction is useful because a drive’s maximum current is not necessarily the correct continuous motor current for every application.

A machine with high starting torque, frequent acceleration, frequent braking or sustained overload may need to be evaluated using the heavy-duty rating rather than simply using the highest light-duty current value.

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5. Regenerative and Low-Harmonic Design

One of the most important features of the 20G1F3C650LNDNNNNN is its regenerative and low-harmonic architecture.

A conventional variable-frequency drive normally converts incoming AC power into DC and then converts that DC power back into controlled AC for the motor.

A regenerative architecture adds active control to the input side so that energy generated by the motor during suitable operating conditions can be returned toward the AC supply.

This becomes especially useful when the driven machinery has significant stored mechanical energy.

Typical examples include:

• Cranes
• Hoists
• Large conveyors
• Downhill conveyors
• High-inertia machines
• Test equipment
• Frequent acceleration/deceleration machinery
• Overhauling loads

The low-harmonic characteristics are also useful in industrial installations where the quality of the incoming electrical supply is an important consideration.

The exact catalog description identifies the model as a regenerative and low-harmonic PowerFlex 755T configuration.

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6. Main Electrical Specifications

Electrical Parameter	Specification
Model	20G1F3C650LNDNNNNN
Input Voltage	400 VAC
Input Phase	Three Phase
Light-Duty Current	750 A
Normal-Duty Current	650 A
Heavy-Duty Current	540 A
Light-Duty Power	400 kW
Normal-Duty Power	355 kW
Heavy-Duty Power	315 kW
Input Architecture	Regenerative
Harmonic Design	Low Harmonic
Motor Output	Variable-frequency three-phase AC
Motor Speed Control	Yes
Motor Torque Control	Yes
Acceleration Control	Programmable
Deceleration Control	Programmable
Regenerative Energy Handling	Yes
Cooling	Air Cooled
Frame	8
Installation	Floor Mount
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent

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7. Product Construction

The 20G1F3C650LNDNNNNN is a large industrial drive and uses a Frame 8 construction.

This is important from both an electrical and mechanical standpoint.

A drive of this size normally requires considerably more installation space than a small wall-mounted inverter.

The installation may require dedicated floor space, a suitable enclosure or cabinet arrangement, substantial incoming power connections, motor-output cabling and adequate ventilation.

The packaged configuration is described as floor mount and Type 1/IP21, which makes it appropriate for an industrial indoor installation when the surrounding environment is suitable.

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8. Dimensions and Weight

Mechanical Parameter	Specification
Model	20G1F3C650LNDNNNNN
Frame	8
Mounting	Floor Mount
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Overall Dimensions	Confirm from exact mechanical drawing
Cabinet Footprint	Configuration-dependent
Mounting Pattern	Confirm from mechanical drawing
Cooling	Air Cooled
Net Weight (kg)	Configuration-dependent
Shipping Weight (kg)	Configuration-dependent
Lifting Requirement	Confirm before handling
Service Clearance	Required
Ventilation Clearance	Required

For this particular large-frame configuration, it would be misleading to provide a single generic width, height, depth or weight without the exact mechanical drawing.

The catalog information confirms the Frame 8 and floor-mounted arrangement, but related PowerFlex 755 configurations can have different mechanical arrangements and options.

For purchasing, cabinet fabrication and transportation, the exact 20G1F3C650LNDNNNNN mechanical drawing should be treated as the controlling information.

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9. Enclosure and Environmental Characteristics

The packaged configuration is associated with Type 1 / IP21 protection.

This type of protection is generally intended for controlled industrial indoor environments rather than exposed outdoor installations.

The installation location should therefore be evaluated for:

• Dust
• Moisture
• Condensation
• Corrosive gases
• Ambient temperature
• Airborne contaminants
• Cooling-air quality
• Vibration

Where the environment is more severe, additional enclosure or environmental protection may be required.

The catalog description identifies the standard packaged configuration as Type 1/IP21.

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10. Cooling System

The drive is air cooled.

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

The power semiconductor section produces heat while the drive is operating.

The cooling system must therefore be able to remove that heat continuously.

A suitable installation should provide:

• Adequate airflow
• Proper ventilation
• Clean cooling paths
• Appropriate ambient temperature
• Correct fan operation
• Sufficient cabinet volume
• Maintenance access
• Suitable spacing around the drive

A blocked air path can increase internal temperature and reduce the reliability of the power electronics.

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11. Product Applications

11.1 Large Conveyor Systems

Large conveyors are one of the most suitable application categories for a high-current PowerFlex 755 configuration.

Mining, cement, steel, port, aggregate and bulk-material facilities often use large motors to drive conveyors over long distances.

Controlled acceleration can reduce mechanical shock on:

• Gearboxes
• Couplings
• Shafts
• Belts
• Chains
• Conveyor structures

The regenerative capability can also become useful in downhill or overhauling conveyor applications.

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11.2 Mining Equipment

Mining operations often contain large rotating machinery.

Potential applications include:

• Ore conveyors
• Feeders
• Pumps
• Fans
• Material-handling systems
• Processing machinery
• Ventilation systems

The high current capacity makes this type of drive suitable for large motors used in demanding industrial environments.

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11.3 Cement and Aggregate Equipment

Cement and aggregate plants use many large motors.

Typical equipment includes:

• Conveyors
• Fans
• Blowers
• Feeders
• Grinding equipment
• Material-handling machinery
• Process equipment

The ability to control motor speed can help match the equipment’s operation to production requirements.

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11.4 Large Pumps

Large industrial pumps are another important application.

The drive can be used where variable motor speed is needed for:

• Water transfer
• Cooling systems
• Process circulation
• Industrial water treatment
• Utility systems
• Chemical processes

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

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11.5 Large Fans and Blowers

Industrial fans can consume large amounts of electrical power.

Variable-speed operation can allow the fan motor to operate at the speed actually required by the process.

Applications include:

• Industrial ventilation
• Combustion air
• Process exhaust
• Cooling systems
• Dust collection
• Furnace systems
• Large air-handling equipment

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11.6 Compressors

Large compressors often require carefully controlled acceleration.

A high-current drive can provide controlled motor starting and adjustable-speed operation where the compressor and motor are suitable for variable-frequency control.

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11.7 Cranes and Hoists

The regenerative capability is particularly relevant to crane and hoist systems.

During lowering, the mechanical load can drive the motor.

During deceleration, stored kinetic energy can also return toward the drive.

An active regenerative front end can handle this type of energy flow differently from a conventional non-regenerative drive.

The mechanical braking and safety system must still be engineered separately.

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12. Product Advantages

12.1 High Current Capacity

The 650 A normal-duty rating places the model in the large industrial-drive category.

It is intended for applications where a small or medium-sized frequency converter would not provide sufficient current capacity.

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12.2 Regenerative Operation

Regenerative operation is one of the main reasons to consider this configuration.

When the motor becomes a generator under suitable operating conditions, the drive can manage the returned energy through the regenerative input architecture.

This is useful for high-inertia or overhauling applications.

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12.3 Low-Harmonic Architecture

The low-harmonic design can be useful in facilities where electrical power quality matters.

Reducing input-current distortion can help the drive integrate more effectively into a larger industrial electrical system.

The exact harmonic performance still depends on the complete system design and installation conditions.

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12.4 Large Motor Capability

The normal-duty rating of approximately 355 kW at 650 A makes this configuration suitable for substantial industrial motors.

The heavy-duty rating is lower because heavy-duty operation requires greater overload capability.

This is a normal consideration when selecting a large drive.

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12.5 Controlled Acceleration

The drive can gradually increase motor speed.

This can reduce the mechanical shock associated with direct-on-line starting.

For large machinery, this can be an important factor in extending the life of mechanical components.

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12.6 Controlled Deceleration

Controlled deceleration allows the machine to slow down according to a programmed profile.

This is particularly useful for:

• High-inertia machinery
• Conveyors
• Fans
• Large pumps
• Cranes
• Hoists
• Process equipment

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12.7 Industrial Automation Integration

The PowerFlex 755 platform is designed for integration with larger industrial control systems.

Depending on the exact configuration, the drive can exchange commands, status information, diagnostics and feedback with other control equipment.

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12.8 TotalFORCE Control

The packaged configuration is identified with TotalFORCE control.

This control architecture provides a more advanced platform for motor-control applications than a basic variable-frequency inverter.

It is intended for applications where control flexibility and system integration are important.

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13. Operator Interface

The packaged configuration is specified with a door-mounted HIM, allowing the operator interface to be accessible from the front of the installation.

This can be useful for:

• Viewing drive status
• Checking parameters
• Monitoring operating conditions
• Reviewing fault information
• Adjusting selected settings
• Performing commissioning tasks

The catalog description identifies a door-mounted HIM as part of the packaged configuration.

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14. Typical Industries

Industry	Equipment	Typical Drive Requirement
Mining	Conveyors, feeders, pumps	High current and variable speed
Cement	Conveyors, fans, process machinery	Large motor control
Steel	Fans, conveyors, production equipment	High-power motor control
Water	Pumps, blowers	Variable-speed operation
Chemical	Pumps, mixers, fans	Process control
Oil & Gas	Pumps and rotating equipment	High-power motor control
Ports	Cranes and conveyors	Regenerative operation
Manufacturing	Large production machinery	Speed and torque control
Utilities	Pumps and fans	Continuous operation
Material Handling	Conveyors and hoists	Acceleration and deceleration control

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15. Five Related PowerFlex 755 Models

The following models are closely related to 20G1F3C650LNDNNNNN and are useful for comparison.

Model	Series	Current Class	Voltage Class	Configuration	Cooling	Dimensions	Weight (kg)
20G1F3C585LNDNNNNN	PowerFlex 755	585 A class	400 V class	Air-Cooled Packaged Drive	Air cooled	Configuration-dependent	Configuration-dependent
20G1F3C650KNANNNNN	PowerFlex 755	650 A class	400 V class	Air-Cooled Packaged Drive	Air cooled	Configuration-dependent	Configuration-dependent
20G1F3C650LNANNNNN	PowerFlex 755	650 A class	400 V class	Air-Cooled Packaged Drive	Air cooled	Configuration-dependent	Configuration-dependent
20G1F3C650MNDNNNNN	PowerFlex 755	650 A class	400 V class	Air-Cooled Packaged Drive	Air cooled	Configuration-dependent	Configuration-dependent
20G1F3C750LNDNNNNN	PowerFlex 755	750 A class	400 V class	Air-Cooled Packaged Drive	Air cooled	Configuration-dependent	Configuration-dependent

These catalog numbers appear as separate configurations within the PowerFlex 755 family. The catalog family includes several 650 A variants as well as nearby 585 A and 750 A models.

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16. Related Model Parameter Comparison

Model	Normal / Main Current	Voltage	Drive Type	Typical Application	Dimensions	Weight (kg)
20G1F3C585LNDNNNNN	585 A class	400 V class	PowerFlex 755 AC Drive	Large pumps, fans, conveyors	Configuration-dependent	Configuration-dependent
20G1F3C650KNANNNNN	650 A class	400 V class	PowerFlex 755 AC Drive	Large industrial machinery	Configuration-dependent	Configuration-dependent
20G1F3C650LNANNNNN	650 A class	400 V class	PowerFlex 755 AC Drive	Large motor control	Configuration-dependent	Configuration-dependent
20G1F3C650LNDNNNNN	650 A ND	400 VAC	Regenerative / Low Harmonic	Large industrial machinery	Configuration-dependent	Configuration-dependent
20G1F3C650MNDNNNNN	650 A class	400 V class	PowerFlex 755 AC Drive	Large industrial applications	Configuration-dependent	Configuration-dependent
20G1F3C750LNDNNNNN	750 A class	400 V class	PowerFlex 755 AC Drive	Higher-current applications	Configuration-dependent	Configuration-dependent

The exact catalog family contains these neighboring configurations, but the models should not be considered automatic drop-in replacements simply because their current ratings are similar.

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17. Five Same-Brand Popular Models

For broader comparison, the following are useful Allen-Bradley drive models from the same general industrial-drive portfolio.

Model	Series	Product Type	Typical Application	Current / Rating	Voltage	Cooling	Dimensions	Weight (kg)
20F1AGC260JA0NNNNN	PowerFlex 753	AC Drive	Pumps, fans, conveyors	Configuration-dependent	Configuration-dependent	Air cooled	Configuration-dependent	Configuration-dependent
20F1AGC302JN0NNNNN	PowerFlex 753	AC Drive	Industrial motor control	Configuration-dependent	Configuration-dependent	Air cooled	Configuration-dependent	Configuration-dependent
20F1AGC367JA0NNNNN	PowerFlex 753	AC Drive	Large industrial machinery	Configuration-dependent	Configuration-dependent	Air cooled	Configuration-dependent	Configuration-dependent
20G1F3C650KNANNNNN	PowerFlex 755	AC Drive	Large industrial motors	650 A class	400 V class	Air cooled	Configuration-dependent	Configuration-dependent
20G1F3C750LNDNNNNN	PowerFlex 755	AC Packaged Drive	Large high-current equipment	750 A class	400 V class	Air cooled	Configuration-dependent	Configuration-dependent

The PowerFlex 753 and PowerFlex 755 catalog families contain numerous industrial AC-drive configurations. The listed 753 examples and related 755 configurations appear in the same broader product catalog.

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18. PowerFlex 755 and PowerFlex 753 Comparison

The PowerFlex 753 and PowerFlex 755 families are both designed for industrial AC motor control, but their configurations and intended application ranges are different.

For smaller and medium industrial machines, a PowerFlex 753 configuration may be more appropriate.

For larger, more demanding machinery, the PowerFlex 755 platform provides a broader range of high-current configurations.

The 20G1F3C650LNDNNNNN is clearly positioned toward the large-motor end of this range.

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19. Installation Requirements

Before installation, the following points should be checked.

Item	Required Check
Supply Voltage	Confirm 400 VAC system
Supply Phase	Confirm three-phase supply
Motor Current	Compare with actual motor nameplate
Motor Power	Compare with appropriate duty rating
Duty Cycle	Determine normal and overload conditions
Acceleration	Establish required ramp time
Deceleration	Establish stopping requirements
Regeneration	Evaluate returned energy
Grounding	Confirm protective-earth arrangement
Power Cables	Select suitable current rating
Motor Cables	Check insulation and length
Cabinet	Confirm physical space
Cooling	Confirm airflow and heat removal
Ambient Temperature	Confirm suitability
Protection	Coordinate upstream protective devices
Communication	Confirm network requirements
Feedback	Confirm encoder/feedback needs
Maintenance Access	Provide sufficient clearance
Weight	Confirm actual equipment weight before transport

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20. Cabinet Design Considerations

A drive of this size requires careful cabinet planning.

The cabinet or installation area must provide sufficient room for the drive and associated electrical equipment.

The design may need to accommodate:

• Input protection
• Disconnect devices
• Power terminals
• Motor terminals
• Grounding equipment
• Control wiring
• Communication hardware
• Cooling equipment
• Auxiliary equipment
• Service access

Cable bending radius can also become significant because large motors require substantial power conductors.

The cabinet must therefore be designed around the actual installation rather than around the drive dimensions alone.

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21. Motor Selection

The correct motor should be selected according to the actual machine requirements.

Important motor information includes:

• Rated voltage
• Rated current
• Rated frequency
• Rated speed
• Rated power
• Service factor
• Motor type
• Starting torque
• Maximum operating speed
• Insulation system
• Encoder requirement
• Cable length

The drive should not be selected by converting motor horsepower into current alone.

The actual motor nameplate current and application duty are more useful for final drive sizing.

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22. Heavy-Duty Applications

The heavy-duty rating of this configuration is approximately 540 A / 315 kW.

This is lower than the 650 A normal-duty rating because the heavy-duty operating class allows for more demanding overload conditions.

This distinction is particularly important for:

• Crushers
• Hoists
• High-inertia conveyors
• Mixers
• Extruders
• Heavy-duty process equipment
• Machinery with frequent starts and stops

The actual application should be evaluated using the applicable drive duty curve and motor requirements.

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23. Normal-Duty Applications

The normal-duty rating is approximately 650 A / 355 kW.

This rating is more representative of applications with relatively steady loading and normal acceleration requirements.

Typical examples include:

• Large pumps
• Fans
• Blowers
• Conveyors
• Process machinery
• Continuous production equipment

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24. Light-Duty Applications

The light-duty configuration is listed at approximately 750 A / 400 kW.

This rating can be useful for applications where the motor load does not require the same level of overload capability as a heavy-duty machine.

The appropriate duty category should always be selected according to the actual operating conditions.

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25. Regenerative Energy Management

The regenerative architecture is especially useful when energy flows from the motor back toward the drive.

This can happen when:

• A crane lowers a load.
• A conveyor runs downhill.
• A large rotating machine decelerates.
• A high-inertia system stops.
• The driven equipment temporarily becomes the energy source.

In a regenerative system, the returned energy can be handled through the active front-end architecture.

This is one of the major functional differences between this configuration and a conventional non-regenerative drive.

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26. Low-Harmonic Operation

The low-harmonic design is useful in industrial facilities where the electrical distribution system must accommodate multiple large power-electronic loads.

Large drives can influence the electrical system if their input current contains significant harmonic components.

A low-harmonic architecture can help reduce that effect.

This can be particularly relevant in facilities containing:

• Multiple large drives
• Large transformers
• Sensitive electrical equipment
• Large production lines
• Process-control systems
• Utility equipment

Actual system performance depends on the complete electrical installation.

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27. Maintenance

Regular maintenance is important for large air-cooled drives.

Cooling System

Check cooling fans and airflow paths.

Dust and contamination should not be allowed to accumulate excessively.

Electrical Connections

High-current connections should be inspected according to the applicable maintenance procedure.

Cabinet

The cabinet should remain clean and dry.

Diagnostics

Drive alarms and faults should be investigated rather than repeatedly reset without identifying the cause.

Motor

Motor insulation, bearings, cables and grounding should also be inspected.

The drive is only one part of the complete motor-control system.

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28. Product Lifecycle

The exact catalog number 20G1F3C650LNDNNNNN belongs to the older PowerFlex 755 product generation.

The related PowerFlex 755 catalog listings show the product family as discontinued, with replacement configurations available in the newer generation.

This is important when purchasing the product today.

Existing installations may still use this model and require original or compatible replacement equipment.

For a new machine, however, it is sensible to evaluate the current replacement platform rather than assuming that the discontinued catalog number remains a standard new-production product.

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29. Replacement Considerations

If an existing machine contains 20G1F3C650LNDNNNNN, replacement should begin with the complete catalog number.

Do not select a replacement solely because it says:

PowerFlex 755

or:

650 A

The following related catalog numbers are different configurations:

Model	Relationship
20G1F3C650KNANNNNN	Related 650 A PowerFlex 755 configuration
20G1F3C650LNANNNNN	Related 650 A PowerFlex 755 configuration
20G1F3C650LNDNNNNN	Reference model
20G1F3C650LNDNNNNN-C0	Related configured variant
20G1F3C650LNDNNNNN-P15	Related configured variant
20G1F3C650LNDNNNNN-P17	Related configured variant
20G1F3C750LNDNNNNN	Higher-current related configuration

These related catalog numbers are documented within the same PowerFlex 755 family.

The suffix and option structure should be checked carefully before treating another model as a replacement.

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30. Detailed Parameter Table

Parameter	Detailed Specification
Model	20G1F3C650LNDNNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 755
Product Type	AC Drive
Packaged Configuration	Air-Cooled 755 AC Packaged Drive
Input Architecture	Regenerative
Harmonic Configuration	Low Harmonic
Input Voltage	400 VAC
Input Phase	3 Phase
Light-Duty Current	750 A
Normal-Duty Current	650 A
Heavy-Duty Current	540 A
Light-Duty Power	400 kW
Normal-Duty Power	355 kW
Heavy-Duty Power	315 kW
Frame	8
Cooling	Air Cooled
Mounting	Floor Mount
Enclosure	Type 1 / IP21
EMI Protection	Standard EMI configuration
Operator Interface	Door-Mounted HIM
Control Architecture	TotalFORCE
Motor Type	Three-Phase AC Motor
Speed Control	Yes
Torque Control	Yes
Regenerative Operation	Yes
Communication	Configuration-dependent
Feedback	Configuration-dependent
Dimensions	Configuration-dependent
Width	Configuration-dependent
Height	Configuration-dependent
Depth	Configuration-dependent
Net Weight (kg)	Configuration-dependent
Shipping Weight (kg)	Configuration-dependent
Product Status	Discontinued

The principal electrical and mechanical characteristics above correspond to the catalog description for the exact 20G1F3C650LNDNNNNN configuration.

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31. Quick Reference

Specification	Value
Model	20G1F3C650LNDNNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product	Air-Cooled AC Packaged Drive
Input	400 VAC, 3 Phase
Light Duty	750 A / 400 kW
Normal Duty	650 A / 355 kW
Heavy Duty	540 A / 315 kW
Drive Architecture	Regenerative / Low Harmonic
Frame	8
Mounting	Floor Mount
Enclosure	Type 1 / IP21
Cooling	Air Cooled
Control	TotalFORCE
HIM	Door Mounted
Main Applications	Pumps, fans, conveyors, compressors, cranes, hoists, process machinery
Dimensions	Configuration-dependent
Weight (kg)	Configuration-dependent
Lifecycle	Discontinued

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32. Final Product Summary

The Allen-Bradley 20G1F3C650LNDNNNNN is a large industrial PowerFlex 755 AC Drive designed for high-power motor-control applications.

Its key configuration is based around a 400 VAC three-phase supply, regenerative and low-harmonic operation, 650 A normal-duty current, 355 kW normal-duty power, 540 A heavy-duty current, 315 kW heavy-duty power and 750 A light-duty current.

The drive uses an air-cooled Frame 8 floor-mounted construction, making it suitable for large industrial installations rather than compact machine applications.

Its regenerative architecture is particularly useful for applications where the motor can return energy during deceleration or when the driven load can drive the motor.

This makes the model relevant to cranes, hoists, downhill conveyors, high-inertia machines and other equipment with substantial regenerative energy.

The low-harmonic design is another important characteristic for large industrial installations where the electrical distribution system must support high-power electronic loads.

Typical applications include mining equipment, cement machinery, steel production systems, large pumps, fans, blowers, compressors, conveyors, material-handling equipment and large process machines.

The PowerFlex 755 platform also provides a flexible industrial control architecture, while the packaged configuration includes a door-mounted HIM and TotalFORCE control.

When comparing alternatives, the closest models are other PowerFlex 755 configurations in the 585 A, 650 A, 750 A and 770 A ranges. Several additional suffix variations exist around the 650 A configuration, so the full catalog number should always be checked before purchasing a replacement.

For physical installation, the most important point is that the exact dimensions and weight in kg are configuration-dependent. The drive is a large Frame 8 floor-mounted unit, but a fixed generic weight or dimensional figure should not be substituted for the actual mechanical drawing.

For an existing installation, matching the complete catalog number is the safest starting point.

For a new system, the current replacement platform, motor nameplate data, load profile, duty class, regenerative requirements, cabinet design and electrical-system requirements should all be evaluated before final drive selection.

In practical terms, 20G1F3C650LNDNNNNN is a high-current, regenerative, low-harmonic PowerFlex 755 configuration intended for serious industrial motor-control work where a smaller standard VFD would not provide the required current capacity or energy-management capability.