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Allen-Bradley 20G1F3C1K0LNDNNNNN PowerFlex 755T High-Power AC Drive
1. Product Overview
The Allen-Bradley 20G1F3C1K0LNDNNNNN is a high-power, air-cooled AC packaged drive belonging to the PowerFlex 755T family.
This model is designed for large industrial motor systems where conventional compact variable-frequency drives are not sufficient for the required power, current capacity, process control, or system integration.
The drive is configured for a 400 VAC, three-phase industrial power system and uses a Frame 9 high-power construction.
Its rating class extends into the very high-power range, with approximately 1,040 A normal-duty current and 560 kW normal-duty power, while the published rating structure also includes approximately 1,090 A / 630 kW low-duty and 920 A / 500 kW heavy-duty operating classes.
The 20G1F3C1K0LNDNNNNN is an air-cooled configuration associated with the PowerFlex 755T regenerative and low-harmonic drive platform. It is intended for floor-mounted industrial installations and uses a large cabinet-style construction rather than a compact standalone drive.
The model incorporates TotalFORCE control, standard EMI protection, a door-mounted HIM, and a high-power architecture intended for demanding industrial applications.
Because this is a very large drive, the complete installation should be considered as an engineered motor-control system. Electrical supply, motor characteristics, cooling, cabinet arrangement, cable routing, grounding, braking, harmonic performance, maintenance access, and mechanical installation all need to be considered together.
2. Product Identification
| Parameter | Specification |
|---|---|
| Model | 20G1F3C1K0LNDNNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755T |
| Product Family | PowerFlex 755T Drives |
| Product Type | Air-Cooled AC Packaged Drive |
| Drive Technology | Regenerative / Low-Harmonic AC Drive Platform |
| Input Voltage | 400 VAC |
| Input Phase | Three Phase |
| Frame Size | Frame 9 |
| Normal-Duty Current | Approximately 1,040 A |
| Normal-Duty Power | Approximately 560 kW |
| Low-Duty Current | Approximately 1,090 A |
| Low-Duty Power | Approximately 630 kW |
| Heavy-Duty Current | Approximately 920 A |
| Heavy-Duty Power | Approximately 500 kW |
| Cooling | Forced Air / Air Cooled |
| Enclosure | Type 1 / IP21 class |
| Mounting | Floor Mount |
| EMI Protection | Standard EMI Protection |
| Operator Interface | Door-Mounted HIM |
| Control Platform | TotalFORCE Control |
| Dynamic Braking | Not provided as a standard dynamic-braking configuration |
| Installation Class | Large industrial electrical equipment |
| Approximate Dimensions | Approx. 2453 × 600 × 600–800 mm for a large Frame 9 cabinet configuration |
| Approximate Weight | Approx. 1,246 kg for a Frame 9 drive cabinet configuration |
| Physical Configuration | Configuration dependent |
| Application | Large industrial motor and process systems |
3. Product Series
The 20G1F3C1K0LNDNNNNN belongs to the PowerFlex 755T series.
The PowerFlex 755T family is intended for demanding industrial applications requiring advanced motor control, high power, system integration, and sophisticated power-conversion technology.
Compared with smaller conventional variable-frequency drives, the PowerFlex 755T platform is designed around much larger industrial systems.
It can be used where the motor system requires high current, large power capacity, controlled acceleration and deceleration, advanced control functions, and integration with a larger automation architecture.
The PowerFlex 755T family also includes different configurations intended for regenerative operation, low-harmonic operation, common-bus systems, and other specialized high-power applications.
The 20G1F3C1K0LNDNNNNN represents a particularly large 400 VAC Frame 9 configuration.
4. Main Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Model | 20G1F3C1K0LNDNNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755T |
| Voltage Class | 400 VAC |
| Phase | Three Phase |
| Frame | Frame 9 |
| Low-Duty Rating | Approx. 1,090 A / 630 kW |
| Normal-Duty Rating | Approx. 1,040 A / 560 kW |
| Heavy-Duty Rating | Approx. 920 A / 500 kW |
| Cooling | Forced Air |
| Drive Type | High-Power AC Drive |
| Input Technology | Regenerative / Low-Harmonic architecture |
| Enclosure | Type 1 / IP21 class |
| Mounting | Floor Mount |
| EMI Protection | Standard |
| Operator Interface | Door-Mounted HIM |
| Control | TotalFORCE |
| Dynamic Braking | None as standard configuration |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm per basic cabinet section; complete packaged arrangement may be wider |
| Approx. Depth | 600–800 mm depending on cabinet arrangement |
| Approx. Weight | Approx. 1,246 kg for a Frame 9 drive cabinet configuration |
| Installation | Industrial electrical room / machinery area |
| Motor Class | Large industrial AC motors |
| Application Class | High-power process and machinery control |
5. Understanding the Power Rating
The 20G1F3C1K0LNDNNNNN is unusual compared with smaller drives because it has multiple duty classifications.
The published rating structure places the drive approximately at:
- Low Duty: 630 kW / 1,090 A
- Normal Duty: 560 kW / 1,040 A
- Heavy Duty: 500 kW / 920 A
This distinction is important when selecting the drive for a real motor.
A large motor operating with relatively moderate overload requirements may use the normal-duty or low-duty rating, while a machine requiring higher overload capability may need to be evaluated against the heavy-duty rating.
The actual selection should therefore be made using the motor nameplate current and application duty rather than simply selecting a drive based on the motor’s nominal kW value.
For large industrial equipment, the difference between continuous current and overload current can have a significant effect on the appropriate drive size.
6. Product Introduction
The 20G1F3C1K0LNDNNNNN is intended to control large AC motors in industrial environments where precise control of motor speed, torque, acceleration, deceleration, and process operation is required.
At this power level, the drive is normally part of a substantial electrical installation.
It may be connected to a large motor driving a pump, compressor, conveyor, fan, blower, mixer, roller, process machine, or other heavy rotating equipment.
The drive receives electrical power from the plant supply and converts it into a controlled output suitable for the motor.
The motor can then operate at a controlled speed rather than being restricted to the fixed speed associated with direct connection to the electrical supply.
This is particularly valuable in processes where production conditions change.
For example, a large pump may need different flow rates at different times, a conveyor may need different material-handling speeds, or a fan may need to respond to changing airflow requirements.
The drive becomes an important part of the overall process-control system.
7. Low-Harmonic and Regenerative Architecture
One of the important characteristics of this configuration is its position within the PowerFlex 755T regenerative and low-harmonic drive family.
Low-harmonic operation can be important in large industrial installations because high-power variable-frequency drives can have a significant effect on the electrical network.
Large facilities may have multiple drives, transformers, generators, sensitive automation equipment, and other electrical loads operating on the same distribution system.
Managing the interaction between the drive and the electrical supply can therefore be an important part of system engineering.
Regenerative capability is also useful in applications where the motor can return energy to the electrical system during deceleration or overhauling operation.
Instead of treating all deceleration energy as heat, a regenerative architecture can provide a method of transferring suitable energy back toward the electrical supply.
This is particularly relevant to applications involving large inertial loads, frequent deceleration, lowering loads, or repeated speed changes.
The exact regenerative operating behavior must still be evaluated against the mechanical load and complete system configuration.
8. TotalFORCE Control
The 20G1F3C1K0LNDNNNNN uses the TotalFORCE control architecture associated with the PowerFlex 755T platform.
The control system is designed for advanced motor-control applications rather than basic fixed-speed operation.
This provides a foundation for controlling large motors while also integrating drive operation with the wider machine or plant control system.
Depending on the complete configuration, the drive can be incorporated into a system containing controllers, operator interfaces, feedback devices, sensors, communication networks, safety equipment, and other industrial control hardware.
This makes the drive suitable for large automated processes where motor operation needs to follow commands generated by a centralized control system.
9. Air-Cooled Construction
The drive uses a forced-air cooling arrangement.
At a power level approaching several hundred kilowatts, thermal management is an important part of system design.
The drive generates heat during normal operation, and the cooling system must remove this heat while maintaining acceptable operating temperatures.
The installation therefore requires suitable ventilation and adequate airflow.
Air passages should not be blocked by cables, cabinet components, dust, or surrounding equipment.
The cooling fans and associated airflow system should also be included in the preventive-maintenance program.
For high-power drives, cooling performance can have a direct impact on operating reliability and service life.
10. Physical Dimensions and Weight
The 20G1F3C1K0LNDNNNNN is a Frame 9 industrial cabinet configuration and is considerably larger and heavier than conventional standalone variable-frequency drives.
For preliminary planning, a Frame 9 drive cabinet can be considered approximately 2453 mm high, with a basic cabinet width in the 600 mm class and a depth around 600 to 800 mm, depending on the cabinet arrangement.
A representative Frame 9 drive cabinet weight is approximately 1,246 kg.
The complete packaged installation can become considerably wider and heavier when additional input, output, filter, wiring, protection, or auxiliary bays are included.
Therefore, the figures below should be treated as engineering-planning values rather than universal shipping dimensions for every possible configuration.
| Mechanical Parameter | Approximate Specification |
|---|---|
| Model | 20G1F3C1K0LNDNNNNN |
| Frame | Frame 9 |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm basic cabinet class |
| Approx. Depth | 600–800 mm |
| Approx. Weight | 1246 kg |
| Mounting | Floor Mount |
| Enclosure Class | Type 1 / IP21 class |
| Cabinet Construction | Large industrial cabinet |
| Service Clearance | Required |
| Lifting Requirement | Heavy equipment handling required |
| Complete System Width | Configuration dependent |
| Complete System Weight | Configuration dependent |
The final mechanical drawing should be used for foundation design, equipment-room planning, lifting, transportation, cable entry, service clearance, and final installation.
11. Product Applications
11.1 Large Pumping Systems
The 20G1F3C1K0LNDNNNNN is suitable for consideration in large pumping installations.
Examples include industrial water systems, process-water systems, cooling-water systems, wastewater facilities, large circulation systems, and other applications requiring substantial pump motors.
Variable-speed operation allows the pump motor to respond to process demand rather than operating continuously at one fixed speed.
11.2 Large Fans and Blowers
Large industrial fans and blowers can consume substantial amounts of electrical power.
A variable-frequency drive can control motor speed according to airflow requirements.
This can be useful in:
- Industrial ventilation
- Exhaust systems
- Process-air systems
- Combustion-air systems
- Cooling systems
- Large air-handling installations
The drive can therefore become part of the airflow-control strategy.
11.3 Compressors
Large compressors often require considerable motor power and may benefit from controlled acceleration and variable-speed operation.
The 20G1F3C1K0LNDNNNNN can be considered for suitable compressor applications where the compressor manufacturer’s operating envelope is compatible with variable-frequency operation.
Particular attention should be given to minimum operating speed, lubrication, torque characteristics, pressure control, and acceleration requirements.
11.4 Large Conveyors
Heavy conveyors can require very large motors, especially in mining, bulk handling, cement, aggregate, and other heavy industrial applications.
The drive can provide controlled acceleration and adjustable conveyor speed.
This can help coordinate material flow and reduce sudden mechanical loading during startup.
For long conveyor systems, the motor-drive combination should be engineered together with the gearbox, belt, coupling, and mechanical tension system.
11.5 Mining and Bulk Material Handling
Large motors are common in mining and bulk-material handling equipment.
Potential applications include:
- Ore conveyors
- Material feeders
- Crushers
- Large fans
- Pumps
- Grinding-related machinery
- Material-transfer systems
The large current capability of the 20G1F3C1K0LNDNNN makes it suitable for consideration in such high-power environments when the electrical and mechanical requirements are satisfied.
11.6 Large Process Machinery
Large process machines often need a combination of speed regulation, torque control, controlled acceleration, and centralized automation.
The PowerFlex 755T platform is suitable for applications where motor control is closely tied to the production process.
11.7 Hoists and High-Inertia Machinery
Large lifting and high-inertia applications can produce significant regenerative energy during deceleration.
A regenerative drive architecture can be useful in applications where energy is repeatedly returned from the motor to the electrical system.
The exact suitability depends on the mechanical system and required braking behavior.
12. Product Advantages
12.1 Very High Power Capacity
The most obvious advantage of the 20G1F3C1K0LNDNNN is its very high power capacity.
With approximately 1,040 A and 560 kW in the normal-duty class, it is intended for applications far beyond the range of compact variable-frequency drives.
This makes it suitable for large industrial motor systems.
12.2 Multiple Duty Ratings
The availability of low-duty, normal-duty, and heavy-duty ratings allows the drive to be evaluated according to the actual application.
This is important because different machines place different demands on their motor.
A pump or fan may have a different overload profile from a conveyor, crusher, hoist, or process machine.
The multiple rating structure therefore provides a more practical basis for engineering selection.
12.3 Low-Harmonic Operation
Large drives can have a significant influence on plant electrical quality.
The low-harmonic architecture associated with this configuration is useful for installations where electrical system performance is an important design consideration.
This can be particularly relevant in facilities containing multiple high-power drives and other sensitive electrical loads.
12.4 Regenerative Capability
Regenerative operation is useful when the mechanical load can return energy during deceleration.
This is relevant to:
- High-inertia machines
- Repeated acceleration and deceleration
- Large conveyors
- Hoists
- Lowering applications
- Large rotating equipment
Instead of relying solely on conventional braking methods, the regenerative architecture provides a means of managing returned energy through the drive system.
12.5 TotalFORCE Control
TotalFORCE control provides a modern control platform for large industrial motor applications.
It is intended for applications where motor operation needs to be controlled accurately and integrated into a broader automation system.
12.6 Large Industrial Construction
The Frame 9 construction is designed for large industrial installations.
The cabinet-based arrangement provides a practical format for integrating a high-power drive into an electrical room or industrial machinery area.
12.7 Air-Cooled Design
Forced-air cooling provides a practical method of managing thermal load in a high-power drive.
The system can be incorporated into an industrial electrical-room layout where appropriate ventilation is available.
13. Advantages for Industrial Automation
The 20G1F3C1K0LNDNNNNN can be integrated into an automation system where motor speed and process conditions need to be coordinated.
For example, a central controller may send a speed command to the drive based on flow, pressure, temperature, production rate, material level, or another process variable.
The drive then regulates the motor accordingly.
This type of arrangement is common in large process plants because it allows motor operation to become part of the overall production strategy.
14. Advantages for Energy Management
Variable-speed control can reduce unnecessary motor operation when the process does not require full speed.
This is particularly relevant to applications involving pumps and fans, where process demand can vary significantly during normal operation.
The ability to adjust motor speed allows the equipment to operate closer to the required process point instead of continuously operating at a fixed maximum speed.
In regenerative applications, returned mechanical energy can also be handled through the regenerative drive architecture.
The actual energy savings depend on the application, operating profile, mechanical system, motor efficiency, process requirements, and electrical installation.
15. Installation Considerations
The 20G1F3C1K0LNDNNN is not a small plug-in component.
The installation should be treated as a major electrical-equipment project.
The equipment room should provide sufficient floor strength for the drive cabinet and associated equipment.
The transportation route should be checked before delivery.
Door openings, corridors, lifting points, overhead clearances, and floor loading should all be considered.
The drive also requires appropriate ventilation and service access.
Large electrical cables need adequate routing space, and the cable-entry arrangement should be coordinated with the cabinet configuration.
16. Electrical Installation
The incoming power system must be compatible with the drive’s 400 VAC three-phase class.
Power conductors should be selected based on actual current, installation method, ambient conditions, conductor material, voltage drop, short-circuit conditions, and applicable electrical requirements.
The motor cable should be selected according to the drive output characteristics and motor requirements.
Grounding should be engineered as part of the complete drive and motor system.
The large current capacity of the drive means that electrical connections and bus systems require careful mechanical and thermal design.
17. Cooling and Ventilation
Adequate airflow is essential.
The installation should provide sufficient space around the cooling system and should prevent the intake or exhaust path from being obstructed.
The operating environment should also be evaluated for dust, humidity, corrosive contaminants, excessive heat, and other conditions that could affect the cooling system.
Maintenance personnel should periodically inspect:
- Cooling fans
- Air passages
- Cabinet ventilation
- Dust accumulation
- Abnormal temperature
- Fan noise
- Electrical connections
A clean and properly ventilated installation is especially important for a drive of this power level.
18. Motor Selection
The motor should be selected according to the actual drive duty rather than the drive catalog number alone.
Important motor data includes:
- Rated voltage
- Full-load current
- Rated power
- Rated frequency
- Rated speed
- Power factor
- Efficiency
- Service factor
- Overload requirement
- Starting torque
- Continuous torque
- Inertia
- Required operating speed range
The motor’s full-load current should be compared with the appropriate drive rating.
For demanding applications, heavy-duty requirements should be evaluated carefully because the applicable current rating can differ substantially from the normal-duty rating.
19. Maintenance
A high-power Frame 9 drive requires a structured maintenance program.
Maintenance should include visual inspection, cooling-system inspection, electrical connection inspection, grounding checks, cabinet cleanliness, control-system checks, and review of drive operating conditions.
The motor and mechanical load should also be inspected.
Unusual motor current, repeated drive trips, overheating, vibration, abnormal noise, or changes in acceleration behavior may indicate a problem outside the drive itself.
A complete motor-drive-maintenance approach is therefore recommended.
20. Five Same-Series or Closely Related Models
The following models are useful when comparing high-power PowerFlex 755T configurations.
| Model | Series | Voltage | Rating Class | Frame | Cooling | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|
| 20G1F3C1K0LNDNNNNN | PowerFlex 755T | 400 VAC | LD 630 kW / ND 560 kW / HD 500 kW | 9 | Air Cooled | Approx. 2453 × 600 × 600–800 mm | Approx. 1246 kg |
| 20G1F3C1K0LNANNNNN | PowerFlex 755T | 400 VAC | Approx. 1K0 class | 9 | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1F3C1K1LNDNNNNN | PowerFlex 755T | 400 VAC | Approx. 1K1 class | 9 | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1F3C1K2LNDNNNNN | PowerFlex 755T | 400 VAC | Approx. 1K2 class | 9 | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1F3C1K4LNDNNNNN | PowerFlex 755T | 400 VAC | Approx. 1K4 class | 9 | Air Cooled | Configuration dependent | Configuration dependent |
These models are useful for applications where the same general high-power architecture is required but the motor current or power requirement changes.
The 1K1, 1K2, and 1K4 configurations move progressively into higher current classes, so the electrical infrastructure, cabinet arrangement, cable system, and mechanical installation should be evaluated accordingly.
21. Five Related High-Power Models
| Model | Series | Voltage Class | Current / Power Class | Cooling | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|
| 20G1F3C1K0LNDNNNNN | PowerFlex 755T | 400 VAC | 1090 A LD / 1040 A ND / 920 A HD | Air Cooled | Approx. 2453 × 600 × 600–800 mm | Approx. 1246 kg |
| 20G1F3C1K1LNDNNNNN | PowerFlex 755T | 400 VAC | Approx. 1.1 kA class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1F3C1K2LNDNNNNN | PowerFlex 755T | 400 VAC | Approx. 1.2 kA class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1F3C1K4LNDNNNNN | PowerFlex 755T | 400 VAC | Approx. 1.4 kA class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1F3C1K0MNDNNNNN-C0 | PowerFlex 755T | 400 VAC | Approx. 1K0 class | Air Cooled | Configuration dependent | Configuration dependent |
These models are closely related from an engineering standpoint and can be considered when designing large motor systems requiring different current capacities or different configuration options.
22. Five Popular Related Models Under the Same Brand
| Model | Series | Voltage Class | Current / Power Class | Cooling | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|
| 20G1E4F370MNANNNNN | PowerFlex 755 | 400 VAC class | 370 A class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1E4F505MNDNNNNN-C11 | PowerFlex 755 | 400 VAC class | 505 A class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1E4F565MNDNNNNN-C11 | PowerFlex 755 | 400 VAC class | 565 A class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1E4F650MNDNNNNN-C11 | PowerFlex 755 | 400 VAC class | 650 A class | Air Cooled | Configuration dependent | Configuration dependent |
| 20G1E4F820MNDNNNNN-C11 | PowerFlex 755 | 400 VAC class | 820 A class | Air Cooled | Configuration dependent | Configuration dependent |
These models provide useful reference points across the large PowerFlex 755 high-power range.
They are especially relevant when an installation requires a common drive platform but the motor sizes vary from one machine to another.
23. Comparison of Current Classes
| Model | Current Class | Relative Application Range | Cooling | Installation |
|---|---|---|---|---|
| 20G1E4F370MNANNNNN | 370 A | Large industrial motors | Air Cooled | Large-frame |
| 20G1E4F505MNDNNNNN-C11 | 505 A | Higher-power industrial motors | Air Cooled | Large-frame |
| 20G1E4F565MNDNNNNN-C11 | 565 A | High-power process equipment | Air Cooled | Large-frame |
| 20G1E4F650MNDNNNNN-C11 | 650 A | Very large motor systems | Air Cooled | Large-frame |
| 20G1E4F820MNDNNNNN-C11 | 820 A | Extremely high-current applications | Air Cooled | Large-frame |
| 20G1F3C1K0LNDNNNNN | 920–1090 A duty range | Very high-power industrial systems | Air Cooled | Frame 9 floor mount |
The 20G1F3C1K0LNDNNNNN occupies a substantially higher current range than the 370 A through 820 A models shown above.
It is therefore more appropriate for very large motor systems and industrial processes with correspondingly large electrical infrastructure.
24. Typical Industries
| Industry | Potential Application |
|---|---|
| Model | 20G1F3C1K0LNDNNNNN |
| Mining | Conveyors, pumps, fans and heavy processing machinery |
| Cement | Large fans, conveyors, crushers and process equipment |
| Steel | Rollers, fans, pumps and process machinery |
| Water Treatment | Large pumps and circulation systems |
| Power Utilities | Pumps, fans and auxiliary machinery |
| Chemical Processing | Pumps, compressors and process equipment |
| Oil and Gas | Large compressors, pumps and rotating machinery |
| Paper | Large rollers, fans and process drives |
| Manufacturing | Large production machinery |
| Bulk Handling | Conveyors, feeders and transfer systems |
| Material Processing | High-power rotating equipment |
25. Advantages in Large Industrial Plants
The 20G1F3C1K0LNDNNNNN can be particularly useful where large motors are distributed throughout a production facility.
Using a high-power drive platform allows motor speed and process operation to be controlled electronically rather than relying exclusively on mechanical methods.
For plants with multiple large motors, a consistent drive architecture can also help standardize maintenance practices, operator training, troubleshooting procedures, spare-parts planning, and control-system design.
This is particularly useful in large continuous-process facilities where unexpected motor downtime can have a significant effect on production.
26. Operational Benefits
During normal operation, the drive allows the motor to operate according to the actual production requirement.
A conveyor can run at different speeds.
A pump can adjust flow.
A fan can adjust airflow.
A compressor can respond to process demand.
A large rotating machine can accelerate and decelerate under controlled conditions.
This flexibility can make the motor-control system more closely aligned with the production process.
27. Engineering Summary
The 20G1F3C1K0LNDNNNNN is a high-power PowerFlex 755T air-cooled AC packaged drive designed for large industrial motor applications.
Its 400 VAC three-phase configuration and Frame 9 construction place it firmly within the high-power industrial equipment category.
The drive supports approximately:
- 630 kW / 1,090 A Low Duty
- 560 kW / 1,040 A Normal Duty
- 500 kW / 920 A Heavy Duty
This makes it suitable for substantial motor systems when the motor’s actual current and duty requirements fall within the applicable rating.
The regenerative and low-harmonic architecture is particularly relevant to large industrial installations where electrical-system performance and energy returned during deceleration are important considerations.
The air-cooled construction provides a practical thermal-management method, while the floor-mounted cabinet arrangement allows the equipment to be integrated into a dedicated industrial electrical room or machinery installation.
The approximate mechanical planning values are around 2453 mm in height, 600 mm basic cabinet width, 600–800 mm depth, and approximately 1,246 kg for a representative Frame 9 drive cabinet configuration.
The complete installation can be substantially larger and heavier when additional bays, filters, protection equipment, cable sections, and auxiliary equipment are included.
28. Final Product Description
The Allen-Bradley 20G1F3C1K0LNDNNNNN is a high-power PowerFlex 755T air-cooled AC packaged drive intended for large industrial motor-control applications.
It is configured for a 400 VAC, three-phase electrical system and uses a Frame 9 industrial floor-mounted construction.
The drive provides a very high current capacity, with approximately 1,040 A / 560 kW in the normal-duty class, approximately 1,090 A / 630 kW in the low-duty class, and approximately 920 A / 500 kW in the heavy-duty class.
This capacity makes the model suitable for very large pumps, fans, blowers, compressors, conveyors, process machines, material-handling systems, and other large rotating equipment.
The PowerFlex 755T architecture adds capabilities intended for advanced industrial applications, including low-harmonic operation, regenerative power handling, TotalFORCE control, industrial automation integration, and high-power motor control.
The forced-air cooling system is designed for the thermal demands associated with this power level, while the large Frame 9 cabinet provides a practical format for installation in industrial electrical rooms and dedicated machinery areas.
The physical scale of the equipment must be taken seriously during project planning. A representative Frame 9 drive cabinet can be approximately 2453 mm high, around 600 mm wide, approximately 600–800 mm deep, and approximately 1,246 kg before considering additional system bays and accessories.
The actual final dimensions and total weight depend on the complete packaged configuration and should therefore be confirmed from the final mechanical arrangement before transportation, foundation construction, lifting, or installation.
From an application perspective, this model is best suited to large industrial systems where motor power, process control, electrical performance, and reliable integration are all important.
The 20G1F3C1K0LNDNNNNN is therefore positioned as a substantial high-power drive solution for large-scale industrial automation and motor-control installations, particularly where a conventional compact variable-frequency drive would not provide the required current capacity or system architecture.