Company Information
E-mail		[email protected]
Mobile		+8615980777398
Whatsapp		+8615980777398
WeChat		15980777398

Allen-Bradley 20G1G4C302JNDNNNNN PowerFlex 755T Low Harmonic AC Drive

1. Product Overview

The Allen-Bradley 20G1G4C302JNDNNNNN is a high-performance air-cooled AC drive belonging to the PowerFlex 755T family and, more specifically, the PowerFlex 755TL low-harmonic drive range.

It is designed for industrial motor-control applications where variable-speed operation, high motor power, controlled acceleration and deceleration, and improved input power quality are important.

The catalog configuration identifies this model as an air-cooled PowerFlex 755 AC packaged drive, with a 400 VAC, three-phase input, Type 12/IP54 enclosure, and floor-mounted construction. The published rating associated with the C302 configuration is 200 kW Light Duty, 160 kW Normal Duty, and 132 kW Heavy Duty.

The model is particularly suitable for larger industrial machines and process equipment where a conventional small cabinet-mounted inverter would not provide sufficient power, environmental protection, or system integration capability.

---

2. Brand and Product Series

Item	Description
Brand	Allen-Bradley
Product Family	PowerFlex
Main Series	PowerFlex 755
Technology Series	PowerFlex 755T
Sub-Series	PowerFlex 755TL
Product Type	Low-Harmonic AC Drive
Cooling Method	Air Cooled
Installation Type	Floor Mount
Enclosure	Type 12 / IP54
Input Power	400 VAC, 3 Phase
Target Model	20G1G4C302JNDNNNNN
Configuration Type	Air-Cooled Packaged Drive
Primary Function	Variable-Frequency Motor Control

The 20G1G4C302JNDNNNNN is not simply a basic variable-frequency drive. Its configuration belongs to the large-frame PowerFlex 755T platform, which is intended for demanding industrial applications where drive performance, system integration, and input power quality are important considerations.

Catalog records identify 20G1G4C302JNDNNNNN specifically as an Air Cooled 755 AC Packaged Drive, while PowerFlex 755T listings classify the C302 configuration within the 400 VAC low-harmonic PowerFlex 755TL family.

---

3. Main Technical Parameters

Parameter	Specification
Model	20G1G4C302JNDNNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 755
Product Series	PowerFlex 755T
Sub-Series	PowerFlex 755TL
Drive Type	Low-Harmonic AC Drive
Cooling	Air Cooled
Input Voltage	400 VAC
Input Phase	3 Phase
Frequency	50/60 Hz industrial supply applications
Enclosure	Type 12 / IP54
Installation	Floor Mount
Light-Duty Rating	200 kW / 367 A
Normal-Duty Rating	160 kW / 302 A
Heavy-Duty Rating	132 kW / 260 A
Approximate LD Horsepower	Approximately 268 HP
Approximate ND Horsepower	Approximately 215 HP
Approximate HD Horsepower	Approximately 177 HP
Harmonic Technology	Low-Harmonic
Construction	Packaged industrial drive
Application Class	Heavy industrial / process machinery
Dimensions	Configuration-dependent; approximately 2000–2400 H × 700–1000 W × 800–1100 D mm for planning
Approximate Weight	Approximately 400–650 kg for planning purposes
Mounting Orientation	Vertical floor-mounted cabinet
Motor Control	Variable-speed AC motor control
Typical Motor Type	Three-phase AC induction and compatible industrial AC motors
Typical Application	Pumps, fans, compressors, conveyors, process machinery, material handling
Power Range	Medium-to-high-power industrial drive class

The published C302 configuration is rated at 200 kW LD / 367 A, 160 kW ND / 302 A, and 132 kW HD / 260 A at 400 VAC, three phase.

The dimensional and weight figures above should be treated as engineering planning estimates rather than guaranteed catalog dimensions. Large packaged drives can change in cabinet width, depth, height, and total mass depending on enclosure arrangement, options, incoming power equipment, disconnect configuration, cooling arrangement, and other selected components. The final mechanical drawing should therefore be used for transportation, foundation, lifting, and cabinet-clearance calculations.

---

4. Understanding the Model Number

The catalog number 20G1G4C302JNDNNNNN contains configuration information that identifies the general construction, voltage class, current rating, interface arrangement, and other drive options.

A simplified engineering interpretation is shown below.

Model Section	General Meaning
20	PowerFlex 755 product designation
G1	PowerFlex 755T drive platform configuration
G4	Type 12 / IP54 packaged floor-mount configuration
C	400 VAC class
302	302 A normal-duty current designation
J	Configuration/interface option code
NNNNN	Additional factory configuration selections

The exact catalog-number decoding should always be interpreted as a complete catalog number rather than by treating every individual character as an independent product specification.

This is especially important for PowerFlex 755T equipment because options can affect the final electrical, mechanical, environmental, and control configuration.

---

5. Product Introduction

The 20G1G4C302JNDNNNNN is intended for industrial motor-control systems where a substantial amount of motor power must be controlled continuously and accurately.

Instead of operating a motor directly from a fixed-frequency electrical supply, the drive regulates the electrical conditions supplied to the motor. This allows the motor speed to be adjusted according to the actual operating requirements of the machine.

For example, a pump does not necessarily need to operate at full speed all the time. A fan may need different operating speeds during different production stages. A conveyor may need controlled acceleration when heavily loaded and controlled deceleration when the production line stops.

The drive provides the electrical control platform required for these types of applications.

The PowerFlex 755TL version adds low-harmonic functionality to the drive system. This is particularly useful in facilities where large variable-speed drives operate alongside sensitive electrical equipment, transformers, generators, PLC systems, instrumentation, and other industrial loads.

The model is built for industrial environments rather than small commercial motor-control installations. Its floor-mounted Type 12/IP54 construction makes it appropriate for installation as part of a larger electrical control system.

---

6. Low-Harmonic Drive Technology

One of the major characteristics of this model is its association with the PowerFlex 755TL low-harmonic drive platform.

Large variable-frequency drives can introduce harmonic currents into the electrical supply if conventional rectifier arrangements are used. As the number and size of drives in a plant increases, harmonic distortion can become an important engineering consideration.

Low-harmonic drive technology is intended to reduce the harmonic impact associated with the drive input stage.

This can be particularly valuable in facilities with:

• Large numbers of variable-speed drives
• Limited transformer capacity
• Sensitive instrumentation
• Large PLC and automation systems
• Generator-based electrical systems
• Large process motors
• Multiple high-power pumps
• Large ventilation systems
• Semiconductor or electronic manufacturing equipment
• Water-treatment facilities
• Chemical processing systems
• Steel and metal-processing equipment

The C302 model is therefore more than a conventional speed controller. It is intended to form part of a larger industrial electrical system where power quality can be an important design consideration.

---

7. 400 VAC Three-Phase Operation

The 20G1G4C302JNDNNNNN belongs to the 400 VAC class.

Its catalog rating is specified for 400 VAC, three-phase operation, with the C302 configuration providing:

Duty Rating	Power	Current
Light Duty	200 kW	367 A
Normal Duty	160 kW	302 A
Heavy Duty	132 kW	260 A

These three ratings are important because the appropriate drive size depends not only on the motor’s nameplate horsepower or kilowatts, but also on the application’s duty cycle.

A pump operating with relatively stable loading may use a different duty classification from a crusher, conveyor, extruder, or machine that repeatedly accelerates heavy loads.

The 200 kW LD rating therefore should not automatically be interpreted as the correct rating for every 200 kW motor application.

---

8. Light-Duty, Normal-Duty and Heavy-Duty Ratings

The drive provides different output capabilities according to the application duty classification.

Light Duty

The Light-Duty rating is approximately 200 kW / 367 A.

This rating is generally associated with applications where the motor does not experience the same level of continuous overload demand as a heavy-duty machine.

Typical examples include certain centrifugal pump and fan applications.

Normal Duty

The Normal-Duty rating is 160 kW / 302 A.

This provides a useful reference point for many general-purpose industrial variable-speed applications.

Heavy Duty

The Heavy-Duty rating is 132 kW / 260 A.

Heavy-duty applications can involve frequent acceleration, high starting torque, substantial load inertia, or repeated overload requirements.

For that reason, the appropriate drive rating should be selected according to actual motor current, torque requirements, acceleration time, overload profile, and application duty rather than simply comparing horsepower values.

---

9. Type 12 / IP54 Enclosure

The model is listed with a Type 12/IP54 enclosure configuration.

This is important for industrial installations because the drive is intended to be installed as a protected packaged electrical assembly rather than as an open chassis component.

The enclosure concept helps provide protection against environmental contamination encountered in many industrial facilities.

Typical locations can include:

• Manufacturing plants
• Pump stations
• Process plants
• Utility facilities
• Material-handling areas
• Industrial production rooms
• Mechanical equipment rooms
• Water-treatment facilities
• Heavy machinery areas

The actual environmental suitability still depends on temperature, humidity, corrosive substances, dust characteristics, altitude, ventilation, and other site conditions.

---

10. Air-Cooled Construction

The 20G1G4C302JNDNNNNN uses an air-cooled construction.

Air cooling is widely used in industrial drive systems because it provides a relatively straightforward thermal-management approach for large electrical equipment.

The cooling system must be considered during cabinet and room design.

Adequate airflow should be maintained around the drive system, and the installation should prevent recirculation of hot exhaust air back into the cooling intake.

The electrical room should also be evaluated for total heat generation. A large drive system can produce a significant amount of heat, particularly when operated continuously at high load.

For installations involving multiple large drives, the total room heat load should be included in HVAC calculations.

---

11. Typical Industrial Applications

11.1 Pump Systems

The drive can be used for large industrial pumps where variable-speed control is required.

Applications include:

• Water supply pumps
• Wastewater pumps
• Cooling-water pumps
• Process pumps
• Circulation pumps
• Booster pumps
• Industrial pumping stations

Variable-speed control can allow the pump system to adjust its operating point according to process requirements rather than continuously operating at maximum speed.

---

11.2 Fan and Blower Systems

Large industrial fans and blowers are another common application.

Examples include:

• Factory ventilation
• Industrial exhaust systems
• Combustion-air systems
• Cooling fans
• Furnace ventilation
• Dust-collection systems
• Process-air systems
• HVAC equipment

The drive can adjust fan speed to match the required airflow.

---

11.3 Compressors

Large compressors can require controlled acceleration and carefully managed operating speed.

The PowerFlex 755T platform is suitable for applications where precise motor speed control is required and where the electrical system benefits from low-harmonic drive technology.

Potential applications include:

• Process compressors
• Air compressors
• Gas-handling equipment
• Industrial refrigeration compressors
• Production compressors

---

11.4 Conveyors

The drive can also be applied to heavy-duty conveyor systems.

A conveyor motor may need controlled acceleration because sudden application of full torque can create mechanical stress on:

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

Variable-speed operation also allows the production system to coordinate material movement with upstream and downstream equipment.

---

11.5 Material Handling

Large material-handling systems frequently require variable-speed motor control.

Examples include:

• Bulk-material conveyors
• Mining conveyors
• Transfer systems
• Hoisting-related machinery
• Large processing conveyors
• Storage and reclaim systems

The ability to control acceleration and deceleration can improve mechanical operation and reduce unnecessary shock loading.

---

11.6 Industrial Process Equipment

The model can also be considered for general process machinery.

Potential sectors include:

• Water and wastewater
• Cement
• Mining
• Steel
• Chemical processing
• Food processing
• General manufacturing
• Utilities
• Material handling
• Heavy industrial production

---

12. Main Product Advantages

12.1 High Power Capability

With a Light-Duty rating of 200 kW and a Normal-Duty rating of 160 kW, the C302 configuration is intended for substantial industrial motor loads.

It is significantly more capable than compact machine-level VFDs and is better suited to centralized industrial motor-control systems.

---

12.2 Low-Harmonic Architecture

The low-harmonic PowerFlex 755TL architecture is a major advantage for installations where input current quality is important.

This can simplify electrical-system planning when multiple large variable-speed drives are installed within the same facility.

---

12.3 Industrial Enclosure

The Type 12/IP54 construction provides a more suitable physical package for industrial environments than an open-frame drive.

This is particularly valuable when the drive is installed as part of a dedicated electrical room or industrial control area.

---

12.4 Floor-Mounted Construction

Floor mounting makes the equipment suitable for large drive installations where the electrical system is designed as a dedicated floor-mounted package.

This approach can simplify integration with:

• Main incoming power
• Motor output connections
• Control wiring
• Grounding
• External disconnect equipment
• Industrial cable systems

---

12.5 Multiple Duty Ratings

The availability of LD, ND, and HD ratings allows engineers to select the appropriate operating class based on the actual mechanical load.

This is more useful than selecting a drive purely according to nominal motor horsepower.

---

12.6 Suitable for Large Industrial Motors

The 302 A normal-duty class allows the model to control considerably larger motors than standard small-frame VFD products.

This makes it appropriate for industrial machinery requiring substantial continuous motor power.

---

12.7 Better Process Control

Variable-speed operation can provide more precise control of industrial processes.

Instead of controlling flow or pressure solely through mechanical devices such as throttling valves or dampers, motor speed can become part of the process-control strategy.

---

12.8 Controlled Acceleration and Deceleration

Controlled motor acceleration can reduce mechanical shock.

Controlled deceleration can also help coordinate machinery shutdown sequences and reduce abrupt stopping behavior.

---

12.9 Industrial Automation Integration

The PowerFlex 755 platform is designed for integration into larger industrial automation systems.

This makes the drive suitable for applications where motor control must be coordinated with PLCs, distributed control systems, process instrumentation, and plant-level automation.

---

13. Detailed Parameter Table

Parameter	20G1G4C302JNDNNNNN
Brand	Allen-Bradley
Series	PowerFlex 755T
Sub-Series	PowerFlex 755TL
Product Category	Low-Harmonic AC Drive
Catalog Type	Air-Cooled 755 AC Packaged Drive
Input Voltage	400 VAC
Input Configuration	Three Phase
LD Rating	200 kW / 367 A
ND Rating	160 kW / 302 A
HD Rating	132 kW / 260 A
Enclosure	Type 12 / IP54
Cooling	Air Cooled
Mounting	Floor Mount
Application	Industrial Variable-Speed Motor Control
Motor Type	Three-Phase AC Motor
Typical Frequency	50/60 Hz supply applications
Harmonic Performance	Low-Harmonic Drive Architecture
Cabinet Style	Packaged Industrial Floor-Mounted Assembly
Dimensions	Approx. 2000–2400 H × 700–1000 W × 800–1100 D mm, planning estimate
Weight	Approx. 400–650 kg, planning estimate
Installation Environment	Industrial Electrical Room / Protected Industrial Area
Main Function	Motor Speed, Torque and Process Control
Typical Load	Pump, Fan, Compressor, Conveyor and Process Machinery
Recommended Engineering Approach	Verify final catalog configuration and mechanical drawing before installation

The exact catalog data confirms the 400 VAC three-phase class and the 200 kW / 367 A LD, 160 kW / 302 A ND, and 132 kW / 260 A HD ratings.

The dimensions and weight shown here are deliberately identified as planning estimates because the complete mechanical dimensions and shipping mass can vary with the final packaged configuration.

---

14. Installation Considerations

The 20G1G4C302JNDNNNNN should be installed on a suitable structural foundation capable of supporting a large industrial electrical assembly.

The floor should be level and capable of handling the concentrated load generated by the cabinet and associated equipment.

Adequate clearance should be provided around ventilation openings, service areas, cable-entry points, and access panels.

The installation should also take into account:

• Incoming feeder size
• Motor cable size
• Grounding conductors
• Control wiring
• Communication wiring
• Heat dissipation
• Ambient temperature
• Ventilation
• Service access
• Lifting requirements
• Cable bending radius
• Electrical clearances
• Maintenance access

The final installation arrangement should always follow the complete configuration drawing for the actual drive package.

---

15. Motor Selection Considerations

When pairing this drive with a motor, the motor nameplate current should be treated as a primary selection parameter.

For a nominally similar motor power, two motors can have different full-load current values depending on:

• Motor efficiency
• Motor power factor
• Motor design
• Motor speed
• Motor voltage
• Motor duty
• Motor temperature rating
• Service factor

Therefore, selecting the drive only by kW or horsepower can produce an incorrect result.

For the C302 configuration, the published current values are:

Duty	Output Current
Light Duty	367 A
Normal Duty	302 A
Heavy Duty	260 A

These values should be compared with the motor’s actual rated current and the application’s overload requirements.

---

16. Power Quality Considerations

Large variable-frequency drives can have a significant effect on an industrial electrical distribution system.

This is one reason why the low-harmonic architecture of the PowerFlex 755TL family is important.

In large plants, the drive may share an electrical distribution system with:

• Transformers
• Other VFDs
• PLC systems
• Industrial computers
• Measurement instruments
• Control systems
• Lighting
• Motors
• Generators
• UPS systems
• Sensitive electronic equipment

Reducing harmonic current effects can help engineers manage the electrical environment more effectively.

A complete power-quality study may still be required for large facilities, especially where multiple high-power converters operate simultaneously.

---

17. Maintenance Considerations

Because this is a large air-cooled industrial drive, maintenance planning should focus strongly on cooling performance and electrical connections.

Typical maintenance activities can include:

• Inspecting cooling-air passages
• Checking fan operation
• Inspecting cabinet ventilation
• Checking electrical connections
• Inspecting grounding connections
• Checking for excessive dust accumulation
• Reviewing drive fault history
• Monitoring operating temperature
• Inspecting cable terminations
• Checking cabinet cleanliness
• Inspecting external signs of overheating
• Reviewing motor current and load trends

Preventive maintenance is particularly important for drives operating continuously under high load.

A clean cooling path is essential because restricted airflow can increase internal component temperatures and reduce operating reliability.

---

18. Five Same-Series or Closely Related Models

The following models belong to the same PowerFlex 755T / PowerFlex 755TL family or are very closely related configurations.

Model	Voltage	LD Rating	ND Rating	HD Rating	Enclosure / Mounting
20G1G4C302LNANNNNN	400 VAC	200 kW / 367 A	160 kW / 302 A	132 kW / 260 A	Type 12/IP54, Floor Mount
20G1G4C367LNDNNNNN	400 VAC	250 kW / 460 A	200 kW / 367 A	160 kW / 302 A	Type 12/IP54, Floor Mount
20G1G4C460LNDNNNNN	400 VAC	315 kW / 540 A	250 kW / 460 A	200 kW / 367 A	Type 12/IP54, Floor Mount
20G1G4C650LNDNNNNN	400 VAC	400 kW / 750 A	355 kW / 650 A	315 kW / 540 A	Type 12/IP54, Floor Mount
20G1G4C920LNANNNNN	400 VAC	560 kW / 1040 A	500 kW / 920 A	400 kW / 770 A	Type 12/IP54, Floor Mount

These configurations illustrate how the same product family extends from approximately 200 kW into the several-hundred-kilowatt range while maintaining the same general 400 VAC low-harmonic platform.

The closest lower-power configuration is the C302 family, while C367 and C460 provide progressively higher current capability. The C650 and C920 configurations move substantially further into large industrial motor applications.

---

19. Five Commonly Encountered Same-Brand Models

The following are five related Allen-Bradley models that are useful for comparison when evaluating the 20G1G4C302JNDNNNNN.

Model	Product Family	Voltage	Main Rating Information	Typical Position
20G1G4C302JNDNNNNN	PowerFlex 755T / 755TL	400 VAC	LD 200 kW / ND 160 kW / HD 132 kW	Target model
20G1G4C367LNDNNNNN	PowerFlex 755T / 755TL	400 VAC	LD 250 kW / ND 200 kW / HD 160 kW	Higher-power step
20G1G4C460LNDNNNNN	PowerFlex 755T / 755TL	400 VAC	LD 315 kW / ND 250 kW / HD 200 kW	Higher-power step
20G1G4C650LNDNNNNN	PowerFlex 755T / 755TL	400 VAC	LD 400 kW / ND 355 kW / HD 315 kW	Large industrial drive
20G1G4C1K1JNDNNNNN	PowerFlex 755T / 755TL	400 VAC	LD 710 kW / ND 630 kW / HD 500 kW	Very high-power class

The C302, C367, C460, C650, and C1K1 configurations demonstrate the broad power range available within the same general PowerFlex 755T architecture. Catalog listings identify the C302, C367, C460, C650 and C1K1 configurations as PowerFlex 755T air-cooled low-harmonic drives.

---

20. Related Higher-Power Configurations

For applications that require substantially more motor power than the C302, the same general family contains larger 400 VAC configurations.

Model	Voltage	LD	ND	HD
20G1G4C1K0LNANNNNN	400 VAC	630 kW / 1090 A	560 kW / 1040 A	500 kW / 920 A
20G1G4C1K1JNDNNNNN	400 VAC	710 kW / 1182 A	630 kW / 1112 A	500 kW / 1040 A
20G1G4C1K2JNDNNNNN	400 VAC	800 kW / 1465 A	710 kW / 1175 A	560 kW / 1090 A
20G1G4C1K4LNANNNNN	400 VAC	850 kW / 1581 A	800 kW / 1465 A	630 kW / 1175 A
20G1G4F735LNDNNNNN	690 VAC	800 kW / 820 A	710 kW / 735 A	630 kW / 650 A

These larger configurations show that the PowerFlex 755T platform can be used for applications far beyond the C302 power range. The published listings provide the corresponding voltage and duty ratings for these configurations.

---

21. C302 Compared with C367

The 20G1G4C302JNDNNNNN and 20G1G4C367 configurations are particularly close in the PowerFlex 755TL range.

Characteristic	20G1G4C302JNDNNNNN	20G1G4C367LNDNNNNN
Voltage	400 VAC	400 VAC
LD	200 kW / 367 A	250 kW / 460 A
ND	160 kW / 302 A	200 kW / 367 A
HD	132 kW / 260 A	160 kW / 302 A
Enclosure	Type 12/IP54	Type 12/IP54
Cooling	Air Cooled	Air Cooled
Mounting	Floor Mount	Floor Mount
Series	PowerFlex 755TL	PowerFlex 755TL

The C367 provides a higher current and power capability and can therefore be considered when the C302 does not provide sufficient current margin for the motor or application.

---

22. C302 Compared with C460

The 20G1G4C460 configuration moves further into the large-motor range.

Characteristic	20G1G4C302JNDNNNNN	20G1G4C460LNDNNNNN
Input Voltage	400 VAC	400 VAC
LD Rating	200 kW / 367 A	315 kW / 540 A
ND Rating	160 kW / 302 A	250 kW / 460 A
HD Rating	132 kW / 260 A	200 kW / 367 A
Enclosure	Type 12/IP54	Type 12/IP54
Cooling	Air Cooled	Air Cooled
Mounting	Floor Mount	Floor Mount
Application	Industrial motor control	Larger industrial motor control

This comparison demonstrates the scalability of the product family.

---

23. Application Advantages in Pumping Systems

For pumping applications, variable-speed control can provide a more flexible method of controlling process flow.

Instead of running the pump continuously at maximum speed and reducing flow through mechanical throttling, the motor speed can be adjusted according to the process requirement.

This can be useful in:

• Water treatment
• Cooling water
• Industrial circulation
• Process pumping
• Utility systems
• Booster stations

The low-harmonic architecture can also be beneficial where large pumping systems are installed on relatively sensitive electrical networks.

---

24. Application Advantages in Conveyor Systems

Conveyor systems often benefit from controlled acceleration.

A heavily loaded conveyor can place significant mechanical stress on the drive train if acceleration is too abrupt.

Variable-speed control can provide a smoother acceleration profile and allow the conveyor to coordinate with other production equipment.

The drive can also be incorporated into automated production systems where speed references come from PLC or supervisory control systems.

---

25. Application Advantages in Fan Systems

Large fans can consume substantial motor power.

Fan speed control can allow the process to operate closer to the required airflow rather than continuously running at maximum speed.

Applications include:

• Industrial ventilation
• Furnace air
• Exhaust systems
• Cooling systems
• Dust extraction
• Process ventilation

The C302 power class is appropriate for many medium-to-large industrial fan applications, subject to the actual motor current and load profile.

---

26. Application Advantages in Compressor Systems

Compressors can require carefully controlled motor operation.

The drive can provide controlled starting, speed adjustment, and coordinated shutdown.

For large process compressors, correct motor-drive sizing is especially important because compressor torque requirements can vary significantly depending on the compressor design and operating condition.

---

27. Mechanical and Electrical Design Considerations

Before installing the 20G1G4C302JNDNNNNN, engineers should review the complete electrical and mechanical design.

Important items include:

1. Incoming supply voltage.
2. Transformer capacity.
3. Available short-circuit current.
4. Motor rated current.
5. Motor voltage.
6. Motor insulation system.
7. Motor cable length.
8. Grounding arrangement.
9. Harmonic requirements.
10. Ambient temperature.
11. Installation altitude.
12. Cooling airflow.
13. Cabinet access.
14. Floor loading.
15. Lifting and transportation method.
16. Control-system interface.
17. Emergency-stop strategy.
18. Maintenance access.
19. Communication requirements.
20. Applicable electrical standards.

---

28. Dimensions and Weight

Because the requested model is a large packaged floor-mounted drive, its physical dimensions are considerably greater than those of compact wall-mounted VFDs.

For preliminary plant-layout work, the following values can be used only as approximate planning figures:

Mechanical Parameter	Planning Value
Height	Approximately 2000–2400 mm
Width	Approximately 700–1000 mm
Depth	Approximately 800–1100 mm
Approximate Weight	Approximately 400–650 kg
Mounting	Floor Mounted
Cabinet Orientation	Vertical
Cooling	Air Cooled
Enclosure	Type 12/IP54

These figures should not be treated as final certified shipping dimensions.

The final dimensions and weight can change according to the exact packaged-drive construction, selected options, cabinet arrangement, incoming power configuration, cooling equipment, control hardware, and other factory options.

For a purchasing specification, plant foundation drawing, lifting plan, or transportation document, the final mechanical drawing for the exact configuration should be used.

---

29. Recommended Engineering Applications

The 20G1G4C302JNDNNNNN can be considered for the following industrial applications:

Application	Suitability
Large Industrial Pumps	Very suitable
Water Treatment Pumps	Suitable
Cooling-Water Pumps	Suitable
Industrial Fans	Suitable
Large Blowers	Suitable
Compressors	Suitable with application verification
Conveyors	Suitable
Material Handling	Suitable
Process Machinery	Suitable
Cement Equipment	Suitable
Mining Equipment	Suitable with duty verification
Chemical Process Equipment	Suitable with environmental verification
Steel Processing Equipment	Suitable with duty verification
General Industrial Machinery	Suitable

The final suitability depends on the actual motor current, torque curve, overload profile, ambient environment, and electrical system.

---

30. Important Advantages for System Integrators

For system integrators, the major advantage of the 20G1G4C302JNDNNNNN is that it provides a substantial amount of motor-control capability in a dedicated industrial packaged format.

Instead of designing a high-power motor-control assembly completely from individual components, the packaged drive provides a more integrated solution.

This can simplify:

• Electrical engineering
• Panel integration
• Drive selection
• Motor control
• Factory testing
• Commissioning
• Maintenance planning
• Spare-parts management

The low-harmonic architecture also makes the product attractive for facilities where the electrical distribution system needs careful harmonic management.

---

31. Key Specification Summary

Specification	Value
Model	20G1G4C302JNDNNNNN
Brand	Allen-Bradley
Family	PowerFlex
Series	PowerFlex 755T
Sub-Series	PowerFlex 755TL
Product Type	Air-Cooled Low-Harmonic AC Drive
Input	400 VAC
Phase	3 Phase
LD	200 kW / 367 A
ND	160 kW / 302 A
HD	132 kW / 260 A
Enclosure	Type 12 / IP54
Installation	Floor Mount
Cooling	Air Cooled
Application	Industrial Variable-Speed Motor Control
Typical Motors	Large Three-Phase AC Motors
Dimensions	Approx. 2000–2400 × 700–1000 × 800–1100 mm, planning estimate
Weight	Approx. 400–650 kg, planning estimate
Main Technology	Low-Harmonic Drive Architecture
Typical Industries	Manufacturing, Water, Process, Mining, Cement, Utilities, Material Handling

The core electrical specification is documented as 400 VAC, three phase, 200 kW LD / 367 A, 160 kW ND / 302 A, and 132 kW HD / 260 A, with Type 12/IP54 floor-mounted air-cooled low-harmonic construction.

---

32. Final Product Description

The Allen-Bradley 20G1G4C302JNDNNNNN is a 400 VAC three-phase, air-cooled, floor-mounted low-harmonic AC drive within the PowerFlex 755T / PowerFlex 755TL family.

Its 200 kW Light-Duty, 160 kW Normal-Duty, and 132 kW Heavy-Duty ratings make it suitable for substantial industrial motor applications where a combination of variable-speed control, high current capability, low-harmonic operation, and industrial enclosure construction is required.

The Type 12/IP54 packaged construction makes the drive appropriate for protected industrial electrical installations, while the floor-mounted architecture is well suited to large motor-control systems.

Typical applications include pumps, fans, blowers, compressors, conveyors, material-handling systems, process machinery, water-treatment equipment, utility systems, and other industrial processes requiring controlled motor speed and torque.

The model is also a useful reference point within the broader PowerFlex 755TL range. Closely related configurations such as the C367, C460, C650, C920 and larger C1K-series models provide progressively higher power and current capabilities, allowing engineers to select a configuration according to actual motor current and application duty.

For engineering planning, the most important specifications to verify are the 400 VAC supply, three-phase configuration, 367 A Light-Duty current, 302 A Normal-Duty current, 260 A Heavy-Duty current, Type 12/IP54 enclosure, floor-mounted construction, cooling requirements, and final mechanical dimensions and weight.

The catalog listings also identify 20G1G4C302JNDNNNNN directly as an Air Cooled 755 AC Packaged Drive, confirming its position within the packaged PowerFlex 755 product range.

For procurement and installation, the final catalog configuration should be checked against the motor nameplate, application duty, electrical distribution system, mechanical installation requirements, and the final factory mechanical drawing before the equipment is ordered or installed.