• Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive
  • Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive
  • Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive
  • Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive
Allen-Bradley 20G1G4C1K1JNDNNNNN — PowerFlex 755TL Low-Harmonic AC Drive 1. Product Overview The Allen-Bradley 20G1G4C1K1JNDNNNNN is a high-power, air-cooled AC drive from the PowerFlex 755T family and ……
Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive
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Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive

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Allen Bradley 20G1G4C1K1JNDNNNNN PowerFlex AC Drive

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Allen-Bradley 20G1G4C1K1JNDNNNNN — PowerFlex 755TL Low-Harmonic AC Drive

1. Product Overview

The Allen-Bradley 20G1G4C1K1JNDNNNNN is a high-power, air-cooled AC drive from the PowerFlex 755T family and the PowerFlex 755TL low-harmonic drive series.

It is designed for large industrial motor applications where high power, controlled acceleration and deceleration, variable-speed operation, low-harmonic performance, and integration with an industrial automation system are required.

The exact configuration is a 400 VAC, three-phase, Frame 9, Type 12/IP54 floor-mounted drive. It is rated at 710 kW / 1182 A for LD, 630 kW / 1112 A for ND, and 500 kW / 1040 A for HD operation. The JND configuration includes a door-mounted HIM (20-750-C6S) together with TotalFORCE control.

This makes the model particularly appropriate for large pumps, fans, compressors, conveyors, crushers, mills, blowers, process machinery, mining equipment, water-treatment systems, and other heavy industrial motor-driven equipment.

2. Brand and Series

Item Description
Brand Allen-Bradley
Product Family PowerFlex
Main Series PowerFlex 755T
Sub-Series PowerFlex 755TL
Product Type Air-Cooled Low-Harmonic AC Drive
Model 20G1G4C1K1JNDNNNNN
Drive Classification PowerFlex 755 AC Drive
Mounting Floor Mount
Enclosure Type 12 / IP54
Frame Frame 9
Input Voltage Class 400 VAC
Input Phase 3 Phase
Cooling Air Cooled
Control Platform TotalFORCE
Human Interface Door-Mounted HIM, 20-750-C6S
EMI Configuration Auxiliary EMI Protection
Primary Application Large Industrial Variable-Speed Motors

The exact catalog description identifies the model as an air-cooled PowerFlex 755T low-harmonic drive, Type 12/IP54, floor mounted, with the three duty ratings listed above and a door-mounted 20-750-C6S HIM.

3. Main Technical Parameters

Parameter Specification
Model 20G1G4C1K1JNDNNNNN
Brand Allen-Bradley
Series PowerFlex 755T
Sub-Series PowerFlex 755TL
Drive Type Low-Harmonic AC Drive
Construction Air-Cooled Packaged Drive
Input Voltage 400 VAC Class
Nominal Mains Range 380–480 VAC
Input Phase 3 Phase
Mains Frequency 50/60 Hz
LD Rating 710 kW / 1182 A
ND Rating 630 kW / 1112 A
HD Rating 500 kW / 1040 A
Enclosure Type 12 / IP54
Mounting Floor Mount
Frame Frame 9
Cooling Air Cooled
Control TotalFORCE
HIM Door-Mounted 20-750-C6S
EMI Protection Auxiliary EMI Protection
Maximum Output Frequency Up to approximately 590 Hz, configuration dependent
Industrial Ethernet Supported
Typical Motor Control V/Hz and vector-based control modes, depending on configuration
Application Class Large Industrial Motor Control
Approx. Dimensions 2,000–2,300 mm H × 1,000–1,400 mm W × 900–1,200 mm D
Approx. Weight 600–900 kg
Installation Indoor Industrial / Electrical Room
Mounting Orientation Vertical Floor Mounted

The electrical ratings, 400 VAC class, Frame 9 construction, Type 12/IP54 enclosure, TotalFORCE control, and door-mounted HIM configuration are associated with this exact model designation.

The dimensions and weight shown above are engineering planning estimates, not guaranteed shipping dimensions. A final installation should use the applicable mechanical drawing for the exact configured unit.

4. Understanding the Model Number

The model number 20G1G4C1K1JNDNNNNN contains configuration information that distinguishes this drive from other PowerFlex 755T models.

The 20G designation identifies the PowerFlex 755 AC drive family.

The 1G4 portion is associated with the Type 12/IP54 floor-mounted packaged-drive configuration.

The C1K1 portion corresponds to the high-power 400 V class rating of the unit.

The JND configuration is particularly important because it identifies the selected HIM and control arrangement. For this model, the drive is specified with a door-mounted 20-750-C6S HIM and TotalFORCE control.

The remaining NNNNN positions represent additional configuration selections and options.

For purchasing, replacement, or engineering purposes, the complete catalog number should always be retained rather than shortening the model to only the PowerFlex family name.

5. Product Introduction

The 20G1G4C1K1JNDNNNNN is built for applications where a large motor needs electronic speed and torque control instead of simply operating continuously at fixed line frequency.

At this power level, the drive is intended for major industrial machinery rather than small machine automation.

A large pump, fan, compressor, conveyor, mill, or process motor can have substantially different operating requirements at different points in a production cycle.

Variable-speed control allows the motor to operate closer to the speed actually required by the process.

The drive can control acceleration, deceleration, operating speed, torque, and other motor-related parameters while exchanging information with a higher-level automation system.

The PowerFlex 755TL architecture also focuses on low-harmonic operation, which becomes increasingly important when large electronic drives are connected to the same electrical distribution network.

The combination of high power and low-harmonic architecture makes the model suitable for large industrial facilities where the motor drive is an important part of both the process-control system and the plant electrical system.

6. Low-Harmonic Architecture

The PowerFlex 755TL designation indicates the low-harmonic version of the PowerFlex 755T platform.

High-power variable-frequency drives can produce harmonic currents on the incoming electrical system.

When a facility contains several large drives, the resulting electrical distortion can become an important engineering consideration.

The low-harmonic architecture of the PowerFlex 755TL is intended to reduce the harmonic impact associated with high-power variable-speed drive operation.

This can be particularly useful in large manufacturing plants, mining facilities, cement plants, water-treatment installations, and process plants where multiple high-power loads operate from a common electrical distribution system.

The actual harmonic performance of a complete installation still depends on the transformer, supply impedance, operating point, other loads, cable arrangement, and overall electrical architecture.

For large projects, a plant-level harmonic study should therefore be performed rather than evaluating the drive in isolation.

7. 400 VAC Class

The 20G1G4C1K1JNDNNNNN is a 400 VAC class, three-phase drive.

The associated mains range is approximately 380 to 480 VAC, making it suitable for many industrial low-voltage electrical distribution systems.

At very high motor power, selecting the appropriate motor voltage can have a significant impact on current levels, cable sizing, switchgear requirements, transformer loading, and installation cost.

The 400 V class configuration is therefore most appropriate where the motor and plant electrical system are designed around this voltage range.

8. High-Power Capability

The model provides three principal duty ratings.

Duty Current Rating Power Rating Typical Load Type
LD — Light Duty 1182 A 710 kW Variable-torque or comparatively moderate-load applications
ND — Normal Duty 1112 A 630 kW General industrial applications
HD — Heavy Duty 1040 A 500 kW Higher-torque and more demanding applications

The three ratings allow the same drive platform to be applied to different types of machinery.

The maximum LD figure should not automatically be used as the motor-selection value.

If the machine requires substantial overload capacity, high starting torque, frequent acceleration, or continuous heavy mechanical loading, the HD rating may be the more appropriate reference.

9. Door-Mounted HIM

A major difference between the 20G1G4C1K1JNDNNNNN and closely related configurations is the inclusion of a door-mounted 20-750-C6S HIM.

The Human Interface Module provides local access to drive setup, status information, diagnostics, parameters, and operating functions.

A door-mounted interface can be convenient for large floor-mounted drives because technicians can access the drive interface without necessarily opening the main enclosure.

This is particularly useful in industrial electrical rooms where the drive is installed as a large packaged unit.

The local interface can also be useful during commissioning, troubleshooting, inspection, and maintenance.

10. TotalFORCE Control

The model uses TotalFORCE control.

This control platform is designed for high-performance motor-control applications and supports the requirements of large industrial rotating equipment.

Depending on the selected motor and control arrangement, the drive can provide sophisticated control of speed, torque, acceleration, deceleration, current, and other operating parameters.

For a large conveyor, for example, controlled acceleration can help reduce sudden mechanical stress.

For a pump, precise speed regulation can help match motor output to changing process requirements.

For a compressor, controlled speed and torque can help coordinate motor operation with the process-control system.

The actual performance depends on correct motor data, commissioning, tuning, feedback configuration, and mechanical-system characteristics.

11. Air-Cooled Construction

The 20G1G4C1K1JNDNNNNN uses an air-cooled architecture.

At several hundred kilowatts of motor power, the drive itself generates a significant amount of heat.

Cooling fans and airflow paths therefore become important parts of the overall installation.

The electrical room must provide sufficient ventilation and heat removal.

The drive should not be installed where hot exhaust air can be drawn back into the cooling intake.

Dust accumulation around cooling paths should also be controlled.

For harsh industrial environments, the environmental conditions should be reviewed carefully before installation.

12. Type 12 / IP54 Enclosure

The exact model uses a Type 12/IP54 enclosure.

This provides a substantially enclosed industrial installation compared with an open-style drive arrangement.

The IP54 classification provides protection against limited dust ingress and water splashing under the applicable test conditions.

The enclosure should nevertheless be installed in an environment compatible with the drive’s temperature, humidity, corrosion, altitude, and contamination limits.

IP54 does not mean that the drive can simply be exposed to outdoor weather, high-pressure water, flooding, or severe chemical contamination without additional protection.

13. Typical Applications

Large Pump Systems

Large centrifugal pumps are one of the most common applications for high-power variable-frequency drives.

The drive can adjust pump speed according to flow and pressure requirements.

This can be useful in water treatment, industrial cooling systems, process-water systems, irrigation, municipal pumping, and large fluid-transfer installations.

Large Fans and Blowers

Large fans can consume substantial electrical power when operated continuously at full speed.

Variable-speed control allows the fan to operate according to the actual ventilation or process requirement.

Typical applications include industrial ventilation, furnace systems, cooling towers, exhaust systems, combustion-air systems, and process blowers.

Compressors

Large compressors often require controlled starting and variable operating speed.

The drive can provide controlled acceleration while allowing the compressor motor to operate according to process requirements.

Typical applications include industrial air systems, process compressors, refrigeration-related machinery, and other large rotating compressor systems.

Conveyor Systems

Mining, cement, aggregate, ports, logistics, and heavy manufacturing facilities often use large conveyors.

The drive can provide controlled acceleration and deceleration.

This can reduce mechanical shock to belts, couplings, gearboxes, shafts, and other components.

Crushers

Crushers can impose high mechanical loads during starting and normal operation.

The high-power and heavy-duty capabilities of the drive make it suitable for large crusher motor applications when the motor and mechanical system are correctly matched to the drive.

Mills and Grinding Equipment

Large mills, grinders, refiners, and similar machinery can require substantial motor torque.

The drive can provide controlled motor operation and can be integrated with the plant automation system.

Mining Equipment

Mining facilities commonly use high-power motors for conveyors, crushers, pumps, fans, mills, and material-handling systems.

The PowerFlex 755TL platform is suitable for many of these applications where high power and low-harmonic operation are required.

Cement Plants

Cement plants use large motors throughout the production process.

Typical applications include raw-material conveyors, grinding mills, exhaust fans, kiln-related equipment, crushers, pumps, and cooling systems.

A high-power variable-speed drive can provide more flexible control of these machines.

Steel Processing

Steel and metal-processing facilities use large motors for rollers, pumps, fans, cooling systems, conveyors, and other machinery.

The drive can provide controlled motor speed and torque while communicating with the wider plant-control system.

Water and Wastewater

Large water and wastewater facilities often use high-power pumps and blowers.

Variable-speed operation can help match the motor to changing flow requirements.

This can be particularly useful where demand changes significantly throughout the day or production cycle.

Chemical and Process Industries

Process plants frequently require continuous operation of pumps, compressors, fans, mixers, and other rotating machinery.

The drive can become part of the overall process-control system, allowing motor speed to respond to pressure, flow, temperature, level, or production requirements.

14. Main Product Advantages

14.1 High Power in a Single Drive

The 20G1G4C1K1JNDNNNNN is designed for very large motor applications.

Its 710 kW LD, 630 kW ND, and 500 kW HD ratings place it firmly in the high-power industrial-drive category.

14.2 Low-Harmonic Operation

The PowerFlex 755TL platform is intended for low-harmonic operation.

This is a significant consideration in plants with multiple large variable-speed drives connected to a common electrical network.

14.3 400 V Industrial Compatibility

The 400 VAC class configuration allows the drive to be used with industrial motor systems designed around the 380–480 V range.

This makes it suitable for many large industrial plants where 400 V-class motor systems are already established.

14.4 Heavy-Duty Capability

The 500 kW HD rating provides a substantial capacity for demanding mechanical loads.

This makes the drive relevant to machinery where starting torque and overload requirements are more demanding than those of simple variable-torque loads.

14.5 Local Door-Mounted Operation

The integrated door-mounted HIM provides convenient access to drive information and operating functions.

This is especially useful for a large floor-mounted drive installed inside an electrical room.

14.6 Advanced Motor Control

TotalFORCE control provides a flexible platform for speed and torque control.

This can be particularly useful when the motor must respond accurately to changing process conditions.

14.7 Industrial Automation Integration

The PowerFlex platform can be integrated into industrial automation networks.

This allows motor-control commands, operating data, alarms, status information, and diagnostics to become part of the plant control architecture.

14.8 Enclosed Floor-Mounted Design

The Type 12/IP54 construction provides an enclosed industrial arrangement suitable for many electrical-room applications.

The floor-mounted construction is also practical for high-power equipment that would be too large or heavy for conventional wall mounting.

14.9 Controlled Acceleration and Deceleration

Large motors and machines can have substantial mechanical inertia.

Controlled acceleration and deceleration can reduce sudden mechanical loading on couplings, shafts, gearboxes, belts, and other mechanical components.

14.10 Flexible Industrial Applications

The same drive platform can be used for pumps, fans, compressors, conveyors, mills, crushers, and process equipment.

This makes it a flexible choice for large plants that want a common drive architecture across multiple equipment types.

15. Dimensions and Weight

For large packaged drives, the exact dimensions depend on the complete configuration.

The following values are suitable only as preliminary layout estimates.

Mechanical Parameter Estimated Value
Model 20G1G4C1K1JNDNNNNN
Mounting Floor Mount
Enclosure Type 12 / IP54
Frame Frame 9
Approx. Height 2,000–2,300 mm
Approx. Width 1,000–1,400 mm
Approx. Depth 900–1,200 mm
Approx. Weight 600–900 kg
Cooling Air Cooled
Installation Direction Vertical
Cable Entry Configuration Dependent
Service Access Front / configuration dependent
Lifting Industrial lifting equipment required for handling

These values should not be used as final foundation, shipping, or lifting specifications.

For actual installation, the dimensional drawing for the configured drive should be used because options, enclosure construction, cable arrangements, auxiliary equipment, and other configuration choices can change the final physical dimensions and weight.

16. Installation Requirements

The drive should be installed on a suitable level floor or supporting structure capable of carrying its operating and transportation weight.

Adequate clearance should be provided around the enclosure.

The front of the drive needs sufficient working space for operation of the door-mounted HIM and for maintenance activities.

Airflow must also be considered carefully.

Because the drive is air cooled, the room ventilation system should be capable of removing the heat generated by the drive and associated equipment.

The drive should not be positioned so that hot exhaust air is recirculated back into the cooling intake.

17. Electrical Installation Considerations

A drive of this size requires careful electrical-system engineering.

The incoming supply, transformer, switchgear, circuit protection, grounding system, cables, motor, and motor disconnecting equipment must be considered together.

The available short-circuit current should be evaluated before selecting the associated electrical equipment.

Motor cable size should be selected according to current, installation method, ambient temperature, cable length, voltage drop, and applicable electrical regulations.

The motor cable routing should also be considered from the perspective of electromagnetic compatibility and motor insulation.

18. Motor Selection

The drive should be matched to the actual motor rather than selected only from the motor’s nominal kW value.

Important motor data includes:

Motor Parameter Importance
Rated Power Determines approximate drive capacity
Rated Current Critical for drive selection
Rated Voltage Must match drive output system
Frequency Usually 50 or 60 Hz
Rated Speed Determines operating range
Motor Type Induction, PM, synchronous, etc.
Starting Torque Important for heavy-duty applications
Overload Determines LD/ND/HD suitability
Encoder Required for applications needing feedback
Insulation Important for inverter operation
Cable Length Can affect motor-drive installation
Cooling Important at reduced speed
Mechanical Load Determines actual torque requirement

The motor’s full-load current should always be checked against the drive rating.

19. Maintenance Considerations

Maintenance of a high-power drive should include inspection of cooling equipment, electrical connections, fans, enclosure condition, filters where applicable, control hardware, and diagnostic information.

Cooling fans are especially important.

A fan failure or blocked airflow path can increase internal component temperature.

The enclosure should be inspected for dust accumulation, moisture, corrosion, and physical damage.

High-current electrical connections should also be inspected according to the maintenance schedule.

Any abnormal temperature rise, unusual noise, repeated alarms, or unexpected trips should be investigated before the equipment is returned to full production duty.

20. Five Same-Series or Closely Related Models

Model Voltage LD Rating ND Rating HD Rating Enclosure Main Difference / Use
20G1G4C1K0LNANNNNN 400 VAC 630 kW / 1090 A 560 kW / 1040 A 500 kW / 920 A Type 12/IP54 Slightly lower power class
20G1G4C1K1JNANNNNN 400 VAC 710 kW / 1182 A 630 kW / 1112 A 500 kW / 1040 A Type 12/IP54 Similar rating with alternate HIM configuration
20G1G4C1K1JNDNNNNN 400 VAC 710 kW / 1182 A 630 kW / 1112 A 500 kW / 1040 A Type 12/IP54 Door-mounted HIM
20G1G4C1K2JNDNNNNN 400 VAC 800 kW / 1465 A 710 kW / 1175 A 560 kW / 1090 A Type 12/IP54 Higher-power version
20G1G4C1K4LNANNNNN 400 VAC 850 kW / 1581 A 800 kW / 1465 A 630 kW / 1175 A Type 12/IP54 Very high-power configuration

The related models above are within the same PowerFlex 755TL 400 V class and provide useful alternatives when comparing power levels and configuration options. The published ratings for the 1K0, 1K1, 1K2, and 1K4 configurations show a progression toward higher motor power and current capacity.

21. Five Same-Brand Models for Comparison

Model Series Voltage Class Power / Duty Class Enclosure Typical Application
20G1G4C650LNDNNNNN PowerFlex 755TL 400 VAC LD 400 kW / ND 355 kW / HD 315 kW Type 12/IP54 Pumps, fans, conveyors
20G1G4C750JNDNNNNN PowerFlex 755TL 400 VAC LD 450 kW / ND 400 kW / HD 315 kW Type 12/IP54 Process machinery
20G1G4C920JNDNNNNN PowerFlex 755TL 400 VAC LD 560 kW / ND 500 kW / HD 400 kW Type 12/IP54 Large pumps and compressors
20G1G4C1K1JNDNNNNN PowerFlex 755TL 400 VAC LD 710 kW / ND 630 kW / HD 500 kW Type 12/IP54 Heavy industrial machinery
20G1G4C1K2JNDNNNNN PowerFlex 755TL 400 VAC LD 800 kW / ND 710 kW / HD 560 kW Type 12/IP54 Very large industrial motors

The 650, 750, 920, 1K1, and 1K2 configurations form a useful comparison range for large 400 V-class PowerFlex 755TL applications. The published catalog listings identify their corresponding LD, ND, and HD ratings.

22. Related 690 V Models

For plants using higher-voltage motors, the PowerFlex 755TL family also includes 690 VAC-class configurations.

Model Voltage LD Rating ND Rating HD Rating Enclosure
20G1G4F565LNDNNNNN 690 VAC 630 kW / 650 A 560 kW / 565 A 500 kW / 505 A Type 12/IP54
20G1G4F650LNDNNNNN 690 VAC 710 kW / 735 A 630 kW / 650 A 560 kW / 565 A Type 12/IP54
20G1G4F735LNDNNNNN 690 VAC 800 kW / 820 A 710 kW / 735 A 630 kW / 650 A Type 12/IP54
20G1G4F820KNDNNNNN 690 VAC 900 kW / 920 A 800 kW / 820 A 710 kW / 735 A Type 12/IP54
20G1G4F920LNDNNNNN 690 VAC 1,000 kW / 1,074 A 900 kW / 920 A 800 kW / 820 A Type 12/IP54

These models are useful when the motor voltage is 690 VAC rather than the 400 VAC class used by the 20G1G4C1K1JNDNNNNN.

23. 400 V Class Power Comparison

Model LD Power ND Power HD Power LD Current ND Current HD Current
20G1G4C650LNDNNNNN 400 kW 355 kW 315 kW 750 A 650 A 540 A
20G1G4C750JNDNNNNN 450 kW 400 kW 315 kW 796 A 750 A 585 A
20G1G4C920JNDNNNNN 560 kW 500 kW 400 kW 1040 A 920 A 770 A
20G1G4C1K1JNDNNNNN 710 kW 630 kW 500 kW 1182 A 1112 A 1040 A
20G1G4C1K2JNDNNNNN 800 kW 710 kW 560 kW 1465 A 1175 A 1090 A

This range shows how the PowerFlex 755TL 400 V class increases in power and current capacity as the frame configuration changes.

24. Typical Industry Selection

Industry Suitable Equipment
Mining Crushers, conveyors, pumps, fans, mills
Cement Mills, conveyors, fans, crushers
Steel Rollers, pumps, fans, cooling equipment
Water Treatment High-capacity pumps and blowers
Wastewater Pumps, aeration blowers
Chemical Processing Pumps, compressors, mixers
Pulp and Paper Fans, pumps, refiners, conveyors
Power Plants Cooling equipment, pumps, fans
Material Handling Conveyors, feeders, elevators
Industrial Manufacturing Large process motors
HVAC Large fans and pumps
Aggregate Processing Crushers, screens, conveyors

25. Practical Advantages by Application

Application Main Benefit of Variable-Speed Drive
Pump Flow and pressure adjustment
Fan Airflow control
Compressor Controlled speed and starting
Conveyor Smooth acceleration and deceleration
Crusher High-power motor control
Mill Controlled speed and torque
Blower Process airflow regulation
Mixer Controlled speed and torque
Material Handling Controlled starting and stopping
Process Line Integration with centralized automation

The advantage of a high-power drive is not simply that it changes motor speed.

It allows the motor, mechanical equipment, and production process to operate as a coordinated system.

26. Recommended Selection Procedure

The first step is to obtain the actual motor nameplate information.

The motor voltage and current should then be compared with the drive’s output capabilities.

The second step is to determine the mechanical load type.

A centrifugal pump or fan normally has very different torque characteristics from a crusher, conveyor, or mill.

The third step is to determine the required duty.

If the machine has significant overload requirements, frequent acceleration, or high starting torque, the HD rating should receive particular attention.

The fourth step is to examine the electrical distribution system.

The transformer, incoming switchgear, available fault current, harmonic limits, grounding system, and motor cables should all be evaluated.

The fifth step is to determine the control architecture.

If the machine requires local operation, a door-mounted HIM can be useful.

If the plant is centrally controlled, EtherNet/IP and the automation system can become the primary interface.

The final step is to verify the mechanical dimensions, enclosure, cooling, environmental conditions, cable entry, and maintenance clearances.

27. Key Technical Characteristics at a Glance

Category 20G1G4C1K1JNDNNNNN
Brand Allen-Bradley
Series PowerFlex 755T
Sub-Series PowerFlex 755TL
Type Low-Harmonic AC Drive
Voltage 400 VAC Class
Phase 3 Phase
LD 710 kW / 1182 A
ND 630 kW / 1112 A
HD 500 kW / 1040 A
Enclosure Type 12 / IP54
Frame Frame 9
Cooling Air Cooled
HIM Door Mounted 20-750-C6S
Control TotalFORCE
Mounting Floor Mount
Harmonic Design Low Harmonic
Approx. Height 2,000–2,300 mm
Approx. Width 1,000–1,400 mm
Approx. Depth 900–1,200 mm
Approx. Weight 600–900 kg
Main Application Large Industrial Motors
Typical Industries Mining, Cement, Steel, Water, Chemical, Manufacturing

28. Final Product Description

The Allen-Bradley 20G1G4C1K1JNDNNNNN is a high-power PowerFlex 755TL low-harmonic AC drive designed for large industrial motor-control applications.

Its configuration combines a 400 VAC three-phase supply class, air-cooled construction, Type 12/IP54 enclosure, Frame 9 floor-mounted packaging, TotalFORCE control, and a door-mounted 20-750-C6S HIM.

Its published duty ratings reach 710 kW at 1182 A in LD operation, 630 kW at 1112 A in ND operation, and 500 kW at 1040 A in HD operation.

The drive is particularly well suited to large pumps, fans, compressors, conveyors, crushers, mills, blowers, water-treatment equipment, mining machinery, cement-production equipment, steel-processing machinery, and other high-power rotating equipment.

Its low-harmonic architecture is useful in installations where electrical power quality is an important consideration.

The door-mounted HIM provides convenient local access to drive information and operation, while TotalFORCE control provides the control platform required for demanding motor applications.

For large industrial installations, the most important selection factors are the actual motor current, voltage, mechanical load, overload requirement, speed range, starting torque, harmonic requirements, environmental conditions, cooling arrangement, automation architecture, and physical installation requirements.

The model is therefore best viewed not simply as a high-power frequency converter, but as a complete industrial motor-control component intended to operate as part of a larger electrical, mechanical, and automation system.



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