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Allen-Bradley 20G1F3C367LNDNNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1F3C367LNDNNNNN is a high-power PowerFlex 755 AC Drive designed for demanding industrial motor-control applications.

It belongs to the PowerFlex 755 family, a range intended for larger industrial machines where accurate speed control, torque control, regenerative operation, network integration, and flexible control architecture are important.

The 20G1F3C367LNDNNNNN is an air-cooled PowerFlex 755 configuration. Product listings identify this exact catalog number as a PowerFlex 755 AC Drive and also associate it with the air-cooled 755 product group.

The “367” portion of the catalog number identifies the drive-current class. This places the unit in the high-power range of the PowerFlex 755 platform and makes it suitable for large motors and heavy industrial equipment.

The model is particularly relevant to applications where a conventional small or medium-duty variable-frequency drive is not sufficient and where the drive must provide considerably more control capability, I/O flexibility, and system integration.

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2. Basic Product Information

Item	Specification
Model	20G1F3C367LNDNNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 755
Product Type	AC Drive / Variable Frequency Drive
Drive Series	PowerFlex 755
Cooling	Air cooled
Application Class	High-power industrial motor control
Current Class	Approximately 367 A
Supply Class	400 V-class configuration
Input Configuration	Regenerative / Active Front End configuration
Motor Control	Adjustable-frequency AC motor control
Typical Motor Type	Three-phase induction and permanent-magnet motor applications, subject to configuration
Installation	Industrial control cabinet / drive system
Communication	Network and communication options depend on installed option modules
Feedback	Encoder and other feedback options can be configured
Braking	Configuration dependent; regenerative versions can return energy to the supply
Frame	Large-frame PowerFlex 755 configuration; final frame/mechanical details should be confirmed against the exact mechanical configuration
Physical Construction	Industrial enclosed drive assembly
Approximate Dimensions	See mechanical specification section below
Approximate Weight	See mechanical specification section below

The exact model number 20G1F3C367LNDNNNNN appears in PowerFlex 755 product listings and price/catalog records as a PowerFlex 755 AC Drive.

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3. Main Technical Parameters

The following table summarizes the principal characteristics of the 20G1F3C367LNDNNNNN.

Parameter	Specification
Model	20G1F3C367LNDNNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	AC variable-frequency drive
Rated Current Class	367 A
Voltage Class	400 V AC class
Input	Three-phase industrial AC supply
Output	Variable-frequency three-phase AC
Drive Construction	Air cooled
Regeneration	Active Front End / regenerative configuration
Motor Control	Vector-oriented / advanced AC motor control
Intended Motor Range	Large industrial motors
Feedback Capability	Encoder and other feedback options available depending on configuration
Dynamic Braking	Application/configuration dependent
Communication	Optional industrial network interfaces
Mounting	Industrial cabinet or drive-system installation
Enclosure	Configuration dependent
Approx. Dimensions	Large-frame configuration; see dimensional section
Approx. Weight	Approximately 100–130 kg class, configuration dependent

Because the PowerFlex 755 catalog number contains multiple configuration fields, the final mechanical dimensions and shipping weight can vary with enclosure, options, filters, control hardware, and other selections. For purchasing or replacement work, the physical drawing for the exact suffix should be checked before installation.

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4. Understanding the Model Number

The catalog number 20G1F3C367LNDNNNNN contains a number of configuration identifiers rather than being simply a basic model number.

The important part for identifying the product family is the 20G1 designation, which places the unit within the PowerFlex 755 drive platform.

The F3 section is associated with the drive’s voltage/input configuration.

The C367 section identifies the current class, with approximately 367 A being the key rating represented by this configuration.

The remaining letters and numbers define additional construction and configuration details.

This is important when replacing a PowerFlex 755 drive. Two drives can have similar current ratings while having different input arrangements, enclosure requirements, regenerative capabilities, filtering, control options, or mechanical configurations.

Therefore, replacing a 20G1F3C367LNDNNNNN should not be based on current rating alone.

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5. Product Introduction

The PowerFlex 755 is designed for applications that require more than basic variable-speed operation.

A conventional VFD may simply control the speed of a motor. A PowerFlex 755 system can be configured as part of a much larger machine-control architecture, where the drive communicates with a PLC, receives speed or torque commands, uses encoder feedback, manages acceleration and deceleration, and provides diagnostic information to the control system.

The 20G1F3C367LNDNNNNN is therefore better viewed as a complete industrial motor-control component rather than simply a frequency converter.

Its high current rating makes it appropriate for large motors used in machinery such as conveyors, cranes, pumps, fans, compressors, extruders, process lines, and other heavy-duty equipment.

The regenerative configuration is particularly useful in machinery where the motor frequently decelerates or operates as a generator.

During conventional braking, motor energy can be converted into heat through a braking resistor. With regenerative operation, braking energy can instead be transferred back toward the electrical supply.

This can be especially useful in applications with frequent acceleration and deceleration cycles.

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6. Regenerative / Active Front End Configuration

One of the major characteristics associated with this configuration is its regenerative input architecture.

In a conventional drive, energy normally flows from the AC supply into the drive and then into the motor.

During motor deceleration, the motor can return energy to the DC bus. If the drive has no regenerative path, that energy normally has to be dissipated.

An Active Front End configuration changes this operating principle.

The front end can control the relationship between the drive and the incoming AC supply, allowing regenerative energy to be returned to the electrical system rather than being dissipated entirely as heat.

This makes regenerative PowerFlex 755 configurations useful in applications such as:

• Cranes
• Hoists
• Elevators
• Large conveyors
• Test stands
• Unwind/rewind machines
• Centrifuges
• Material-handling systems
• Large rotating machinery
• High-inertia production equipment
• Machines with frequent braking cycles

For machinery with long deceleration periods, the regenerative architecture can also reduce the amount of heat that would otherwise have to be removed from the drive cabinet.

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7. Main Advantages

7.1 High-Power Motor Control

The 367 A current class places this drive in the high-power segment of the PowerFlex 755 family.

It is intended for substantially larger motors than compact industrial drives.

This makes the model suitable for machines where high starting torque, controlled acceleration, precise speed regulation, and reliable operation are required.

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7.2 Regenerative Energy Handling

A major advantage of a regenerative configuration is the ability to handle energy generated by the motor during braking.

Instead of relying entirely on a braking resistor, regenerative operation can transfer energy back toward the incoming electrical system.

This is particularly valuable when braking occurs frequently.

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7.3 Advanced Motor Control

The PowerFlex 755 platform provides more advanced control functionality than basic VFD products.

Depending on the selected control configuration and installed options, the system can support speed control, torque control, feedback-based control, and sophisticated acceleration/deceleration profiles.

This allows the drive to be integrated into machines where motor behavior must be controlled accurately.

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7.4 Flexible Feedback

Large industrial machines sometimes require feedback from the motor.

Encoder feedback can be used when the application requires better low-speed control, improved positioning behavior, or more accurate speed regulation.

The PowerFlex 755 family supports various feedback arrangements depending on the selected hardware.

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7.5 Industrial Communication

The PowerFlex 755 platform is designed to integrate with industrial automation systems.

Depending on the installed communication options, the drive can exchange control commands, speed references, status information, alarms, and diagnostic information with the machine control system.

This makes it suitable for centralized PLC-based automation architectures.

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7.6 Suitable for Large Machinery

The drive is designed for applications where motor power and machine inertia are considerably higher than those normally handled by compact VFDs.

Typical equipment can include large conveyors, material-handling systems, pumps, fans, compressors, processing machinery, and production equipment.

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7.7 Flexible System Configuration

One of the strengths of the PowerFlex 755 architecture is that it can be configured according to the requirements of the machine.

Options can include feedback, communications, I/O, safety functions, filtering, and other system-level features.

This allows one drive family to be used across many different machine designs.

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8. Dimensions and Weight

For a high-power PowerFlex 755 configuration in this current range, the drive uses a substantially larger mechanical package than compact PowerFlex products.

Because the exact mechanical arrangement can change according to the selected enclosure and options, the dimensions below should be treated as representative installation values rather than a guaranteed shipping dimension for every suffix configuration.

Mechanical Parameter	Approximate Value
Model	20G1F3C367LNDNNNNN
Height	Approximately 1,000–1,100 mm
Width	Approximately 500–600 mm
Depth	Approximately 350–400 mm
Approx. Weight	Approximately 100–130 kg
Cooling	Air cooled
Installation	Vertical industrial installation
Cabinet Space	Large cabinet / equipment-room installation
Service Clearance	Additional clearance required for ventilation and maintenance

For equipment layout work, it is important not to use the approximate dimensions above as the final cabinet drawing.

The actual installation dimensions should be confirmed from the mechanical drawing corresponding to the exact catalog configuration.

For transportation and logistics, the packed weight can also be higher than the drive’s net equipment weight because packaging, mounting hardware, and accessories add additional mass.

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9. Typical Applications

9.1 Cranes and Hoists

The regenerative architecture is well suited to cranes and hoists because these machines repeatedly accelerate and decelerate.

When a heavy load is lowered, the motor can operate in a regenerative condition.

Returning energy to the supply can be more suitable than continuously converting that energy into heat.

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9.2 Large Conveyors

Long conveyors can require large motors because of the mass of the belt and transported material.

The PowerFlex 755 can provide controlled acceleration and deceleration while reducing mechanical shock to the conveyor system.

This is useful in mining, material handling, bulk processing, and manufacturing.

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9.3 Pumps

Large process pumps can require precise speed control.

Variable-speed operation allows the pump output to be adjusted according to process requirements instead of running continuously at full speed.

This can improve process control and may reduce unnecessary motor energy consumption.

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9.4 Fans and Blowers

Large industrial fans can have substantial inertia.

A controlled frequency drive allows the motor to accelerate and decelerate smoothly while providing adjustable operating speed.

The PowerFlex 755 is suitable for large ventilation and process-air systems.

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9.5 Compressors

Industrial compressors often require stable speed control and controlled acceleration.

The PowerFlex 755 can be integrated into a larger control system to manage motor speed according to the process demand.

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9.6 Extruders

Extrusion machinery often requires controlled motor torque and stable operating speed.

The PowerFlex 755 platform can provide the control functions needed for large extrusion motors.

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9.7 Test Stands

Large motor test systems may repeatedly accelerate and decelerate motors.

This makes regenerative power handling particularly attractive.

The drive can become part of a controlled test platform where speed, torque, acceleration, and braking are managed from the automation system.

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9.8 Material Handling

Large material-handling systems often use multiple motors.

The PowerFlex 755 can be used as part of a coordinated drive system where individual motor speed and torque must be controlled.

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10. Installation Considerations

A drive of this size requires substantially more installation planning than a compact VFD.

The cabinet must provide sufficient airflow.

The incoming electrical system must be correctly sized for the drive current and application.

Cable selection, grounding, EMC considerations, motor cable length, thermal management, and cabinet ventilation should all be considered during system design.

The regenerative front-end configuration also means that the incoming power system needs to be compatible with the selected regenerative arrangement.

The drive should be installed in accordance with the applicable electrical standards and the machine manufacturer’s engineering requirements.

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11. Recommended Related Models – Same PowerFlex 755 Family

The following models are closely related PowerFlex 755 configurations and are useful when comparing current ratings, voltage configurations, or application requirements. Catalog listings show the 367 A configuration alongside 302 A, 460 A, and other PowerFlex 755 variants.

Model	Series	Current Class	Typical Application	Approx. Dimensions	Approx. Weight
20G1F3C302LNDNNNNN	PowerFlex 755	302 A	Large industrial motor control	Large-frame	Approx. 80–100 kg
20G1F3C367LNDNNNNN	PowerFlex 755	367 A	High-power / regenerative applications	Approx. 1,000–1,100 × 500–600 × 350–400 mm	Approx. 100–130 kg
20G1F3C460LNDNNNNN	PowerFlex 755	460 A	Higher-power industrial equipment	Large-frame	Approx. 120–150 kg
20G1F3C2K8LNDNNNNN	PowerFlex 755	2.8 kA class	Very high-power drive system	System/enclosure dependent	System dependent
20G1F3C1K4LNDNNNNN	PowerFlex 755	1.4 kA class	High-power industrial system	System/enclosure dependent	System dependent

The 302 A, 367 A, and 460 A models are especially useful for engineers comparing nearby current ratings within the PowerFlex 755 family. The 1.4 kA and 2.8 kA configurations move into substantially larger system-level applications and should not be treated as simple drop-in replacements.

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12. Related Model: 20G1F3C302LNDNNNNN

The 20G1F3C302LNDNNNNN is a lower-current configuration within the same PowerFlex 755 family.

It is suitable when the required motor current is below the 367 A class.

This model is particularly useful when the original machine does not require the full current capacity of the 20G1F3C367LNDNNNNN.

Parameter	20G1F3C302LNDNNNNN
Model	20G1F3C302LNDNNNNN
Series	PowerFlex 755
Current	302 A class
Voltage Class	400 V class
Cooling	Air cooled
Application	Large industrial motor control
Regenerative Configuration	Yes, configuration dependent
Approx. Dimensions	Large-frame
Approx. Weight	Approx. 80–100 kg

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13. Related Model: 20G1F3C460LNDNNNNN

The 20G1F3C460LNDNNNNN is a higher-current member of the same PowerFlex 755 family.

It can be considered where the motor load requires more current than the 367 A configuration.

Parameter	20G1F3C460LNDNNNNN
Model	20G1F3C460LNDNNNNN
Series	PowerFlex 755
Current	460 A class
Voltage Class	400 V class
Cooling	Air cooled
Application	Large and heavy-duty motor systems
Regenerative Configuration	Configuration dependent
Approx. Dimensions	Large-frame
Approx. Weight	Approx. 120–150 kg

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14. Related Model: 20G1F3C1K4LNDNNNNN

The 20G1F3C1K4LNDNNNNN belongs to the same general PowerFlex 755 architecture but represents a much higher-current configuration.

It is intended for very large industrial drive systems rather than ordinary machine drives.

Parameter	20G1F3C1K4LNDNNNNN
Model	20G1F3C1K4LNDNNNNN
Series	PowerFlex 755
Current	Approximately 1.4 kA class
Voltage Class	High-power industrial configuration
Cooling	Air cooled / system dependent
Application	Very large motors and industrial systems
Control	Advanced AC motor control
Approx. Dimensions	System dependent
Approx. Weight	System dependent

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15. Related Model: 20G1F3C2K8LNDNNNNN

The 20G1F3C2K8LNDNNNNN is another high-current PowerFlex 755 configuration.

It is intended for very large drive applications where the current requirement is far beyond the range of conventional compact drives.

Parameter	20G1F3C2K8LNDNNNNN
Model	20G1F3C2K8LNDNNNNN
Series	PowerFlex 755
Current	Approximately 2.8 kA class
Voltage Class	High-power industrial configuration
Cooling	System dependent
Application	Very large industrial motors
Control	Advanced industrial AC drive control
Approx. Dimensions	System/enclosure dependent
Approx. Weight	System/enclosure dependent

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16. Five Popular Models from the Same Brand

The following products are useful comparison points within the same brand portfolio. They cover compact drives, general-purpose industrial drives, larger PowerFlex drives, and motion-control equipment.

Model	Product Family	Main Function	Typical Voltage Class	Current / Power Range	Approx. Dimensions	Approx. Weight
25B-D010N114	PowerFlex 525	Compact AC drive	480 V class	Small motor applications	Approx. 200 × 100 × 150 mm	Approx. 2–5 kg
25C-D010N114	PowerFlex 527	Compact industrial AC drive	480 V class	Small motor applications	Approx. 200 × 100 × 150 mm	Approx. 2–5 kg
20F1AND302JN0NNNNN	PowerFlex 753	Large industrial AC drive	480 V class	302 A class	Large-frame	Approx. 80–100 kg
20G1ANC302JA0NNNNN	PowerFlex 755	Industrial AC drive	400 V class	302 A class	Approx. 881.5 × 430 × 349.6 mm	Approx. 82 kg
2094 Series Drive	Kinetix Motion	Servo / motion control	Application dependent	Application dependent	Modular	Application dependent

The five models above are not direct equivalents to the 20G1F3C367LNDNNNNN.

They represent different areas of the product portfolio and are useful primarily for understanding the differences between compact VFDs, large industrial drives, and motion-control systems.

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17. PowerFlex 525 Compared with PowerFlex 755

The PowerFlex 525 is much smaller and is generally intended for compact machine applications.

The PowerFlex 755 is designed for much larger and more sophisticated industrial equipment.

Feature	PowerFlex 525	PowerFlex 755
Application Size	Small / medium machines	Large industrial machinery
Drive Power	Low to medium	High
Physical Size	Compact	Large
Cabinet Requirement	Small	Large
Feedback	More limited	Extensive configuration capability
Communication	Integrated/optional depending on model	Broad industrial communication options
Regeneration	Limited compared with AFE systems	Advanced regenerative configurations
Control Complexity	Moderate	Advanced
Typical Installation	Machine cabinet	Industrial equipment / large cabinet
Maintenance	Relatively simple	Requires more specialized service

For a 367 A application, a compact PowerFlex 525 should not be considered a replacement simply because both products are variable-frequency drives.

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18. PowerFlex 753 Compared with PowerFlex 755

The PowerFlex 753 and PowerFlex 755 are much closer in application range.

Both are intended for industrial motor control, but the PowerFlex 755 architecture provides a broader range of high-end configuration possibilities.

The PowerFlex 755 is particularly attractive when the machine requires advanced feedback, communications, regenerative operation, and sophisticated system integration.

Feature	PowerFlex 753	PowerFlex 755
Product Level	Industrial	High-end industrial
Large Motor Applications	Yes	Yes
Advanced Feedback	Available	Extensive
Regenerative Options	Configuration dependent	Extensive configuration capability
Network Integration	Available	Extensive
Machine Complexity	Medium to high	High
Large Process Equipment	Suitable	Very suitable
High-Inertia Loads	Suitable	Particularly suitable
Engineering Flexibility	High	Very high

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19. Key Selection Points for 20G1F3C367LNDNNNNN

When selecting or replacing this drive, current rating is only one part of the decision.

The following points should be checked.

Motor Rated Current

The motor’s nameplate current must be compared with the drive’s continuous output-current rating.

The drive should not be selected simply by motor horsepower.

Motor current, overload requirements, ambient temperature, altitude, duty cycle, and application type all influence the correct selection.

Normal-Duty and Heavy-Duty Operation

The required overload rating is important.

A conveyor or pump may have very different overload requirements from a crane, hoist, extruder, or crusher.

The drive must be selected according to the actual duty cycle.

Regenerative Requirements

If the machine frequently regenerates energy, the input configuration becomes especially important.

A standard non-regenerative drive and a regenerative drive are not interchangeable simply because their output current ratings are similar.

Motor Feedback

If encoder feedback is used on the existing machine, the replacement drive must support the same feedback arrangement or an appropriate alternative.

Communication

The existing PLC or automation system should be checked for its communication architecture.

Changing the drive may require changes to network configuration, control logic, parameter mapping, or commissioning procedures.

Physical Installation

Cabinet dimensions, mounting holes, cable-entry locations, ventilation, heat dissipation, and service access must all be checked.

This is especially important for a drive in the 367 A class.

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20. Advantages in Heavy Industrial Equipment

The 20G1F3C367LNDNNNNN is most valuable in systems where the drive itself is a major part of the machine-control architecture.

For a simple small pump, a drive of this size would be unnecessary.

For a large conveyor, hoist, compressor, extruder, or test stand, however, the combination of high current capacity, advanced control, feedback capability, industrial communications, and regenerative operation can provide the functionality required by the machine.

Another important advantage is system scalability.

Because the PowerFlex 755 family contains many current and configuration variants, engineers can often maintain a similar control architecture while selecting a different drive size for another motor.

This simplifies standardization across large industrial plants.

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21. Maintenance Considerations

Large air-cooled drives require regular attention to airflow and cooling.

Dust accumulation can reduce cooling performance and increase internal temperature.

Cooling fans and ventilation paths should therefore be inspected during scheduled maintenance.

Electrical connections should also be checked according to the equipment maintenance procedure.

The DC bus and other internal power components can retain hazardous voltage after power has been removed.

Maintenance personnel should follow the correct lockout/tagout procedure and verify that the equipment is electrically safe before opening the drive cabinet.

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22. Summary Specification Table

Category	20G1F3C367LNDNNNNN
Model	20G1F3C367LNDNNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	AC Drive
Configuration	Air-cooled industrial drive
Current Class	367 A
Voltage Class	400 V
Input	Three-phase AC
Output	Variable-frequency three-phase AC
Regeneration	Active Front End / regenerative configuration
Motor Control	Advanced AC motor control
Feedback	Available depending on configuration
Communications	Available through configured communication options
Typical Application	Large industrial machinery
Typical Motors	Large induction / PM motor applications
Cooling	Air cooled
Approx. Height	1,000–1,100 mm
Approx. Width	500–600 mm
Approx. Depth	350–400 mm
Approx. Weight	100–130 kg
Installation	Industrial cabinet / drive system
Application Level	High-power industrial
Replacement Selection	Must match voltage, current, duty, regeneration, feedback and mechanical configuration

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23. Final Product Assessment

The Allen-Bradley 20G1F3C367LNDNNNNN is a high-power configuration within the PowerFlex 755 family.

Its main characteristics are the approximately 367 A current class, 400 V-class industrial application, air-cooled construction, and advanced drive architecture.

The product is intended for large machines rather than small standalone motor applications.

Its strongest application area is equipment that needs substantial motor power together with sophisticated control functions.

The regenerative configuration is particularly relevant to machines with high inertia or frequent braking, because regenerative operation can provide a controlled path for returning braking energy to the electrical system.

The PowerFlex 755 architecture also provides considerable flexibility for industrial automation. Feedback devices, communication interfaces, I/O, and other options can be selected according to the machine requirements.

For a replacement project, the most important point is to compare the complete catalog configuration rather than looking only at the “367 A” rating.

Voltage class, motor current, normal-duty/heavy-duty requirements, regenerative capability, feedback hardware, communication modules, enclosure, dimensions, cooling, and installation requirements should all be matched before ordering.

In practical terms, the 20G1F3C367LNDNNNNN is best understood as a large industrial PowerFlex 755 drive intended for demanding motor-control applications where ordinary compact VFDs are not adequate.

Its combination of high current capacity, advanced control, regenerative capability, industrial communication, and flexible configuration makes it suitable for large-scale machinery such as conveyors, cranes, hoists, pumps, fans, compressors, extruders, material-handling systems, and industrial test equipment.

For mechanical planning, use the approximate 1,000–1,100 mm height, 500–600 mm width, 350–400 mm depth, and approximately 100–130 kg weight only as preliminary engineering values. The exact final dimensions and net/shipping weight should be confirmed against the mechanical documentation for the exact configured unit before cabinet fabrication, transportation, or replacement work.