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Allen-Bradley 20G1ABD740JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The 20G1ABD740JN0NNNNN is a high-power, air-cooled AC drive in the PowerFlex 755 series. It is designed for large industrial motor-control applications where high output current, substantial horsepower capacity, controlled acceleration and deceleration, process-speed regulation, and integration with an industrial automation system are required.

This configuration is rated for a 480 VAC, three-phase input and provides a substantial 740 A output-current rating. Its approximate motor-duty ratings are 700 HP for Light Duty, 650 HP for Normal Duty, and 500 HP for Heavy Duty.

The combination of 740 A output capacity and Frame 8 construction places this drive in the high-power industrial category. It is intended for equipment such as large conveyors, crushers, pumps, fans, blowers, mixers, material-handling machinery, mining equipment, cement and aggregate machinery, and other large process machines.

A particularly important feature of the 20G1ABD740JN0NNNNN is its Blank / No HIM configuration. Unlike versions fitted with a handheld or door-mounted Human Interface Module, this configuration is intended for installations where the main operator interface is provided by a PLC, HMI, SCADA system, or other centralized control architecture.

This arrangement is often desirable in large automated plants because the drive itself does not need a permanent local display on the cabinet door. The control system can provide the operator with motor speed, current, status, alarm, fault, and process information through the plant automation network.

The drive uses forced-air cooling, an AC input with precharge, no DC terminals, EMC filtering, and a CM jumper installed configuration. Internal dynamic braking is not included.

The model is an active J-series configuration and is the direct replacement for the earlier 20G1ABD740AN0NNNNN A-series configuration.

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2. Brand and Product Series

Category	Description
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Sub-Product	PowerFlex 755 AC Packaged Drive
Catalog Number	20G1ABD740JN0NNNNN
Drive Class	High-Power Industrial AC Drive
Cooling	Forced Air
Frame	Frame 8
Input Voltage	480 VAC
Input Phase	3 Phase
Output Current	740 A
HIM Configuration	Blank / No HIM
Lifecycle	Active
Related Previous Model	20G1ABD740AN0NNNNN
Direct Replacement Relationship	20G1ABD740JN0NNNNN replaces 20G1ABD740AN0NNNNN

The PowerFlex 755 series is intended for architecture-level industrial motor control. It provides a considerably broader power range and application capability than compact machine-level variable-frequency drives.

The 20G1ABD740JN0NNNNN is specifically configured for a very large motor-control application, making it more appropriate for centralized industrial systems than small machine panels.

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3. Detailed Technical Parameters

Parameter	Specification
Catalog Number	20G1ABD740JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Family	PowerFlex 750-Series
Product Type	Air-Cooled AC Drive
Input Voltage	480 VAC
Input Frequency	50/60 Hz industrial power system
Input Phase	3 Phase
Output Current	740 A
Light-Duty Rating	700 HP
Normal-Duty Rating	650 HP
Heavy-Duty Rating	500 HP
Approx. Light-Duty Power	522 kW
Approx. Normal-Duty Power	485 kW
Approx. Heavy-Duty Power	373 kW
Input Type	AC Input with Precharge
DC Terminals	None
Cooling Method	Forced Air
Enclosure	Type 1 / IP20
Installation Style	600 mm Deep MCC Style
Frame Size	Frame 8
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Human Interface Module	Blank / No HIM
Local Display	Not included
Communication	Embedded EtherNet/IP
Typical Installation	MCC / Industrial Electrical Room / Large Control System
Approx. Height	2100 mm
Approx. Width	610 mm
Approx. Depth	600 mm
Approx. Dimensions	2100 × 610 × 600 mm
Approx. Weight	634 kg
Approx. Weight in Pounds	1397 lb
Cooling Fan Type	Backward-Curved Centrifugal
Approx. Fan Airflow	1805 m³/h
Approx. Fan Electrical Input	0.45 kW
Dynamic Braking Resistor	Not Included
Intended Motor Class	Large Industrial Motors

The dimensions and weight above should be treated as approximate engineering values. The final installation should be based on the applicable mechanical drawing, actual equipment configuration, shipping arrangement, and nameplate information.

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4. Electrical Performance

The most important electrical characteristic of the 20G1ABD740JN0NNNNN is its 740 A output current capacity.

For large motors, current rating is a critical selection parameter because the actual motor current depends on voltage, motor efficiency, power factor, operating speed, motor construction, and load characteristics.

The drive is designed for a 480 VAC three-phase system and provides approximately the following horsepower ratings:

• 700 HP Light Duty
• 650 HP Normal Duty
• 500 HP Heavy Duty

The approximate metric equivalents are:

• 700 HP ≈ 522 kW
• 650 HP ≈ 485 kW
• 500 HP ≈ 373 kW

These values are useful for general product comparison, but final drive selection should be based on the motor nameplate current and the required application duty rather than horsepower conversion alone.

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

The three duty classifications provide flexibility when selecting the drive for different load profiles.

Light Duty – 700 HP

The Light-Duty rating provides the highest horsepower capability of approximately 700 HP.

This rating is suitable for applications where the motor load does not require the more demanding overload capability associated with Heavy-Duty service.

Typical examples include large fans, certain pumps, and other relatively smooth-torque applications.

Normal Duty – 650 HP

The Normal-Duty rating is approximately 650 HP.

This provides a balance between motor capacity and industrial overload requirements and can be appropriate for many continuous-production machines.

Heavy Duty – 500 HP

The Heavy-Duty rating is approximately 500 HP.

Heavy-duty applications generally involve greater starting torque, more demanding acceleration, higher cyclic loading, or greater overload requirements.

The lower horsepower rating in Heavy-Duty operation reflects the additional thermal and current margin required for demanding loads.

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6. No-HIM Configuration

One of the defining characteristics of 20G1ABD740JN0NNNNN is the Blank / No HIM configuration.

This means that the drive does not have a local Human Interface Module installed as part of the catalog configuration.

For a large automated production line, this can actually be an advantage.

Instead of relying on a local drive display, the drive can be controlled and monitored from the plant automation system.

Typical centralized functions include:

• Start and stop commands
• Speed reference
• Actual motor speed
• Output current monitoring
• Drive status
• Fault indication
• Alarm monitoring
• Operating-condition monitoring
• Parameter management
• Process control

This configuration is especially suitable for applications where the drive is located inside a controlled electrical room and operators normally interact with the machine through a central HMI or SCADA station.

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7. Why a No-HIM Drive Can Be Advantageous

A no-HIM configuration is not simply a reduced version of a drive.

In a properly designed automation system, the PLC and supervisory HMI may already provide all the information an operator needs.

Removing the local HIM can provide several practical benefits.

First, the cabinet front can remain cleaner and simpler.

Second, operators are less likely to make unauthorized local parameter changes.

Third, the automation system can become the single operating interface for the complete machine.

Fourth, large drive systems often contain multiple motors and multiple control devices. Centralized operation allows all of these devices to be viewed through a common HMI structure.

For a large conveyor, pumping station, mining machine, or process plant, this can be a very practical architecture.

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8. Embedded EtherNet/IP Communication

The 20G1ABD740JN0NNNNN includes embedded EtherNet/IP communication.

This allows the drive to become part of a larger industrial automation network.

Instead of controlling the drive exclusively through hardwired signals, the automation system can exchange operating information through the network.

Typical network-controlled functions can include:

• Run command
• Stop command
• Speed reference
• Frequency reference
• Current monitoring
• Speed feedback
• Drive status
• Fault status
• Alarm status
• Diagnostic information
• Selected parameter information

This is especially valuable in large plants where multiple drives are controlled from a centralized PLC or supervisory system.

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9. Input Configuration

The drive uses an AC input with precharge and does not provide DC terminals in this configuration.

Precharge is important for a high-power drive because the internal DC bus contains substantial energy-storage capacitors.

When the drive is energized, the precharge system limits the initial charging current to the DC bus.

This reduces the electrical stress associated with energizing a large drive and allows the DC bus to reach its operating voltage in a controlled manner.

The absence of DC terminals makes this configuration suitable for conventional AC-fed installations where an external DC bus connection is not required.

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10. EMC Filter and CM Jumper

The 20G1ABD740JN0NNNNN uses a filtered configuration with the CM jumper installed.

The EMC filter helps reduce conducted electromagnetic interference associated with high-frequency switching inside the drive.

This can be important in industrial environments containing:

• PLC systems
• Instrumentation
• Industrial Ethernet
• Sensors
• Measurement equipment
• Communication systems
• Control electronics

The CM jumper configuration is also important when replacing an older A-series drive.

The earlier 20G1ABD740AN0NNNNN used the older CM-jumper-removed configuration, while the newer 20G1ABD740JN0NNNNN uses the CM-jumper-installed configuration.

For a replacement project, this distinction should be considered as part of the electrical system and grounding design.

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11. Cooling System

The 20G1ABD740JN0NNNNN uses forced-air cooling.

At a 740 A current rating, substantial heat is generated by the power electronics during operation.

The drive therefore requires an appropriate thermal-management system.

The related Frame 8 configuration uses a backward-curved centrifugal fan arrangement.

A representative cooling configuration has approximately:

• 1805 m³/h airflow
• 0.5 m³/s airflow
• 0.45 kW fan electrical input
• 63.7% fan efficiency
• Approximately 527 Pa applicable pressure difference

These values provide a useful indication of the scale of the cooling system required for a drive of this size.

The actual installation must provide suitable ventilation and must not obstruct the cooling-air path.

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12. Mechanical Dimensions

The 20G1ABD740JN0NNNNN is a large Frame 8 industrial drive.

An approximate mechanical envelope is:

Height: approximately 2100 mm

Width: approximately 610 mm

Depth: approximately 600 mm

Therefore, the approximate overall size can be represented as:

2100 × 610 × 600 mm

This is a substantial piece of industrial electrical equipment and should not be treated like a conventional small wall-mounted VFD.

Adequate space should be provided for:

• Power-cable installation
• Motor-cable installation
• Ventilation
• Inspection
• Maintenance
• Electrical clearance
• Grounding
• Lifting and handling
• Cooling-air circulation

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13. Weight

The approximate product weight is:

634 kg

or approximately:

1,397 lb

Because large Frame 8 equipment can be supplied with different accessories, packaging, shipping arrangements, and installation hardware, the actual shipping weight may differ from the nominal product weight.

For lifting and transportation, the final mechanical documentation and actual equipment identification should be used.

The weight also means that floor loading and handling arrangements should be considered during the original engineering design.

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14. Dimensions and Weight Table

Mechanical Parameter	Approximate Specification
Model	20G1ABD740JN0NNNNN
Frame	Frame 8
Enclosure	Type 1 / IP20
Installation Style	600 mm Deep MCC Style
Height	Approx. 2100 mm
Width	Approx. 610 mm
Depth	Approx. 600 mm
Overall Dimensions	Approx. 2100 × 610 × 600 mm
Weight	Approx. 634 kg
Weight in Pounds	Approx. 1397 lb
Cooling	Forced Air
Fan Type	Backward-Curved Centrifugal
Approx. Airflow	1805 m³/h

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15. Typical Applications

Large Conveyor Systems

Large conveyors frequently require high-power motors and controlled acceleration.

The 20G1ABD740JN0NNNNN can be used for conveyor systems where motor current falls within its 740 A capability.

Potential applications include:

• Mining conveyors
• Bulk-material conveyors
• Aggregate conveyors
• Cement conveyors
• Port material-handling systems
• Heavy industrial transfer systems

The drive can regulate conveyor speed while providing controlled acceleration and deceleration.

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Mining Machinery

Mining equipment often requires large motors and robust motor-control systems.

Potential applications include:

• Mining conveyors
• Crushers
• Large fans
• Dewatering pumps
• Material-processing machinery
• Grinding-related machinery
• Bulk-material handling systems

The 740 A configuration is particularly relevant to large mechanical loads where motor power is substantial.

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Crushers

Crushers can produce significant mechanical loading and may require careful control during acceleration.

A high-power variable-frequency drive can help control the motor during startup and allow the machine speed to be coordinated with the production process.

The 20G1ABD740JN0NNNNN is suitable for crusher applications when the motor’s current and overload requirements fall within the applicable drive rating.

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Large Pumps

Large pumps are common in water, mining, industrial processing, and utility applications.

Typical applications include:

• Water-treatment pumps
• Industrial circulation pumps
• Cooling-water pumps
• Mining dewatering pumps
• Process pumps
• Wastewater pumping systems

Variable-speed operation can help match pump output to changing process requirements.

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Large Fans

Large fans and blowers can require hundreds of horsepower.

Potential applications include:

• Industrial ventilation
• Dust collection
• Furnace air systems
• Cement-process fans
• Mining ventilation
• Process-air systems
• Large exhaust systems

For fan applications, variable-speed operation can provide useful process control while avoiding unnecessary operation at full speed.

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Cement and Aggregate Equipment

Cement and aggregate plants contain many large motor loads.

The drive can be applied to:

• Large conveyors
• Crushers
• Fans
• Pumps
• Mixers
• Material-handling systems
• Process equipment

The centralized no-HIM configuration can be particularly suitable for plants where the complete process is controlled from a central automation room.

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Process Machinery

Large process machines can also benefit from a high-power PowerFlex 755 configuration.

Potential applications include:

• Mixers
• Agitators
• Large pumps
• Blowers
• Material-handling machinery
• Process machinery
• Large production equipment

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16. Main Product Advantages

1. 740 A High-Current Capability

The 740 A output rating is the primary strength of this model.

It allows the drive to control very large motors without requiring multiple smaller drives to be combined for the same motor.

For high-power equipment, this provides a straightforward single-drive architecture.

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2. Up to Approximately 700 HP Light-Duty Capacity

The approximately 700 HP Light-Duty rating provides considerable motor capacity.

This makes the drive suitable for very large pumps, fans, conveyors, and other industrial machinery.

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3. 650 HP Normal-Duty Capability

The 650 HP Normal-Duty rating gives the drive a strong continuous-duty capability.

This is particularly useful for industrial machines that operate for long periods under relatively stable load conditions.

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4. 500 HP Heavy-Duty Capability

The 500 HP Heavy-Duty rating provides a useful option for applications with more demanding overload requirements.

This can include equipment that requires high starting torque, repeated acceleration, or substantial cyclic loading.

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5. No-HIM Architecture

The no-HIM configuration is particularly advantageous for centralized automation systems.

The drive can be controlled through a plant PLC, HMI, or SCADA system without requiring a local display on the drive itself.

This can simplify the physical arrangement of the electrical cabinet.

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6. Embedded EtherNet/IP

Embedded EtherNet/IP allows the drive to communicate with the automation system.

This makes centralized monitoring and control practical and can reduce the amount of hardwired control wiring required for some applications.

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7. Frame 8 High-Power Construction

Frame 8 provides a mechanical and electrical platform appropriate for high-current industrial applications.

It provides the physical architecture required for high-power semiconductors, cooling equipment, bus structures, and associated drive components.

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8. Forced-Air Cooling

The forced-air cooling architecture provides the thermal-management capacity needed by a 740 A drive.

This is essential for maintaining stable operating temperatures under high-power continuous operation.

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9. EMC Filtering

The filtered configuration helps manage electromagnetic interference.

This can be particularly useful in plants with extensive automation and instrumentation.

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10. AC Precharge

The AC input with precharge provides controlled energization of the drive’s internal DC bus.

This is an important feature in high-power drive systems.

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17. Product Selection Considerations

The 20G1ABD740JN0NNNNN should not be selected solely by comparing horsepower.

The most important engineering checks include:

1. Motor nameplate voltage.
2. Motor full-load current.
3. Required overload current.
4. Duty cycle.
5. Acceleration and deceleration requirements.
6. Motor speed range.
7. Required braking performance.
8. Ambient temperature.
9. Altitude.
10. Installation ventilation.
11. Cable length.
12. Grounding system.
13. Harmonic requirements.
14. EMC requirements.
15. Network architecture.
16. Required local operator interface.

For this particular model, the No HIM configuration should also be considered carefully.

If operators require local adjustment and monitoring directly from the drive cabinet, a HIM-equipped configuration may be more appropriate.

If the plant already uses centralized PLC/HMI/SCADA control, the no-HIM configuration can be an excellent fit.

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18. Comparison With 740 A HIM Configurations

Model	Current	LD	ND	HD	HIM	CM Configuration	Typical Architecture
20G1ABD740JN0NNNNN	740 A	700 HP	650 HP	500 HP	No HIM	Jumper Installed	Centralized control
20G1ABD740JN2NNNNN	740 A	700 HP	650 HP	500 HP	Handheld / Local LCD	Jumper Installed	Local maintenance
20G1ABD740JN4NNNNN	740 A	700 HP	650 HP	500 HP	Door-Mounted LCD	Jumper Installed	Local operator access
20G1ABD740AN0NNNNN	740 A	700 HP	650 HP	500 HP	No HIM	Older configuration	Existing installations
20G1ABD740AN4NNNNN	740 A	700 HP	650 HP	500 HP	Door-Mounted LCD	Older configuration	Existing installations

The three J-series configurations are especially useful to compare because their basic power capability is essentially the same while the HIM arrangement changes.

The JN0 is the centralized-control choice.

The JN2 is the local/handheld choice.

The JN4 is the door-mounted operator-interface choice.

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19. Five Recommended Related Models

The following five models are closely related to the 20G1ABD740JN0NNNNN and are useful for system design, replacement planning, and power-rating comparison.

Model	Series	Input	Current	LD	ND	HD	HIM	Frame	Approx. Dimensions	Approx. Weight
20G1ABD740JN4NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 HP	650 HP	500 HP	Door Mounted	8	~2100 × 610 × 600 mm	~634 kg
20G1ABD740JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 HP	650 HP	500 HP	Handheld / Local	8	~2100 × 610 × 600 mm	~634 kg
20G1ABD710JN0NNNNN	PowerFlex 755	480 VAC, 3 PH	710 A	650 HP	600 HP	450 HP	No HIM	8	~2100 × 610 × 600 mm	~634 kg class
20G1ABD617JN0NNNNN	PowerFlex 755	480 VAC, 3 PH	617 A	600 HP	500 HP	400 HP	No HIM	8	~2100 × 610 × 600 mm	~623–635 kg class
20G1ABD545JN0NNNNN	PowerFlex 755	480 VAC, 3 PH	545 A	500 HP	450 HP	350 HP	No HIM	8	Large Frame 8	~620 kg class

20G1ABD740JN4NNNNN

This is the closest configuration when the same 740 A drive is required but local operation through a door-mounted LCD interface is preferred.

It provides the same general 480 VAC, 740 A, Frame 8, 700/650/500 HP rating structure.

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20G1ABD740JN2NNNNN

This is the handheld/local HIM version of the same 740 A drive class.

It is appropriate when maintenance personnel need direct local access but a permanent door-mounted interface is not required.

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20G1ABD710JN0NNNNN

The 710 A version provides slightly less output current but remains a very large Frame 8 drive.

Its approximate ratings are:

• 650 HP LD
• 600 HP ND
• 450 HP HD

It can be a more appropriately sized selection when the motor does not require the full 740 A capacity.

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20G1ABD617JN0NNNNN

The 617 A version steps down further in output current.

Its approximate ratings are:

• 600 HP LD
• 500 HP ND
• 400 HP HD

This model is useful when the motor’s actual nameplate current is comfortably below the 740 A requirement.

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20G1ABD545JN0NNNNN

The 545 A configuration provides another lower-current option in the same PowerFlex 755 high-power family.

It is approximately:

• 500 HP LD
• 450 HP ND
• 350 HP HD

It can be considered when a high-power drive is still required but the 617 A, 710 A, or 740 A configurations would provide more capacity than necessary.

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20. Five Popular Allen-Bradley Models

The following five models are useful popular comparison points across the same broad Allen-Bradley drive portfolio.

Model	Product Series	Typical Voltage Class	Approx. Current / Capacity	Typical Application Level	Approx. Dimensions	Approx. Weight
25B-D030N114	PowerFlex 525	480 VAC class	30 A class	Compact industrial machines	Compact enclosure	Several kg class
25C-D030N114	PowerFlex 527	480 VAC class	30 A class	Machine automation	Compact enclosure	Several kg class
20G1ABC302JN4NNNNN	PowerFlex 755	400 VAC class	302 A	Large industrial machinery	Large Frame 8 class	Hundreds of kg
20G1ABC460JN4NNNNN	PowerFlex 755	400 VAC class	460 A	Large industrial machinery	Large Frame 8 class	Hundreds of kg
20G1ABC650JN4NNNNN	PowerFlex 755	400 VAC class	650 A	Very large industrial machinery	Large Frame 8 class	Hundreds of kg

The first two models are considerably smaller than the 20G1ABD740JN0NNNNN and are intended for a different scale of machinery.

The 20G1ABC302JN4NNNNN, 20G1ABC460JN4NNNNN, and 20G1ABC650JN4NNNNN are much closer in architecture and application class because they belong to the PowerFlex 755 high-power family.

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21. Application Selection Guide

Application	Suitability	Reason
Large Conveyor	Excellent	High current and controlled acceleration
Mining Conveyor	Excellent	High-power motor control
Crusher	Excellent	High motor capacity and demanding load control
Large Pump	Excellent	Large motor and variable-speed operation
Large Fan	Excellent	High-power speed control
Industrial Blower	Excellent	Large motor control
Cement Equipment	Excellent	Heavy industrial application
Aggregate Equipment	Excellent	Large motor and process control
Material Handling	Excellent	Centralized drive control
Large Mixer	Excellent	High-power motor control
Process Machinery	Excellent	Networked motor control
Small Machine	Generally oversized	740 A capacity is excessive
Small Pump	Generally oversized	More economical smaller drive may be preferable

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22. Centralized Automation Application

One of the strongest use cases for the 20G1ABD740JN0NNNNN is a centralized automation architecture.

For example, a large production facility may have:

• Multiple PowerFlex drives
• PLC controllers
• Operator HMIs
• SCADA systems
• Industrial Ethernet
• Motor protection
• Process instrumentation
• Remote I/O

In this arrangement, the individual drive does not necessarily need its own operator display.

The PLC can issue commands to the drive while the HMI provides the operator with the complete machine interface.

The no-HIM configuration therefore fits naturally into a large automated process.

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23. Maintenance Considerations

Although the drive does not have a local HIM, maintenance can still be managed through the plant automation architecture and appropriate service tools.

The design should provide sufficient diagnostic access through the control system.

Useful maintenance information includes:

• Drive operating state
• Motor current
• Motor speed
• Fault codes
• Alarm status
• Temperature information
• Communication status
• Process interlocks
• Run permissives

For installations where maintenance personnel require direct local access, a handheld or door-mounted HIM configuration may be more appropriate.

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24. Installation Environment

The 20G1ABD740JN0NNNNN has a Type 1 / IP20 configuration.

This means that the drive should be installed in an appropriate protected industrial environment.

It is not intended to be treated as a fully sealed outdoor drive.

The installation should protect the equipment from:

• Water
• Excessive dust
• Condensation
• Corrosive contaminants
• Excessive vibration
• Uncontrolled ambient temperatures

For harsh environments, the drive should be installed inside an appropriately engineered enclosure or electrical room.

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25. Important Engineering Advantages

The overall value of the 20G1ABD740JN0NNNNN comes from the combination of several features rather than from one specification alone.

The 740 A output rating provides substantial motor capacity.

The 700 HP Light-Duty rating allows the drive to handle very large motors.

The 650 HP Normal-Duty rating provides strong continuous-duty capability.

The 500 HP Heavy-Duty rating supports applications with more demanding overload requirements.

The Frame 8 architecture provides a suitable physical platform for high-current operation.

The forced-air cooling system manages the thermal load associated with high-power operation.

The embedded EtherNet/IP interface allows integration into a centralized automation system.

The No-HIM configuration is well suited to centralized control architectures.

The EMC filter helps address electromagnetic compatibility requirements.

The AC input with precharge provides controlled energization of the drive’s DC bus.

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26. Direct Replacement Relationship

The 20G1ABD740JN0NNNNN is particularly important because it serves as the direct replacement for the older:

20G1ABD740AN0NNNNN

The two models share the same basic:

• 480 VAC rating
• Three-phase architecture
• 740 A current class
• 700 HP LD rating
• 650 HP ND rating
• 500 HP HD rating
• Frame 8 construction
• No-HIM configuration
• High-power industrial application class

The main configuration difference is associated with the filtering and CM-jumper arrangement.

The older A-series model used the CM jumper removed configuration, while the J-series model uses the CM jumper installed configuration.

When replacing an existing unit, the entire electrical installation should therefore be reviewed rather than assuming the two catalog numbers are mechanically and electrically identical in every detail.

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27. Summary Parameter Table

Category	20G1ABD740JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	Air-Cooled AC Drive
Catalog Number	20G1ABD740JN0NNNNN
Input Voltage	480 VAC
Phase	3 Phase
Output Current	740 A
Light Duty	700 HP
Normal Duty	650 HP
Heavy Duty	500 HP
Approx. LD Power	522 kW
Approx. ND Power	485 kW
Approx. HD Power	373 kW
Input Type	AC Input with Precharge
DC Terminals	None
Cooling	Forced Air
Enclosure	Type 1 / IP20
MCC Style	600 mm Deep
Frame	Frame 8
Filtering	EMC Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Communication	Embedded EtherNet/IP
Fan Type	Backward-Curved Centrifugal
Approx. Fan Airflow	1805 m³/h
Approx. Fan Input Power	0.45 kW
Approx. Dimensions	2100 × 610 × 600 mm
Approx. Weight	634 kg
Approx. Weight	1397 lb
Lifecycle	Active
Previous A-Series Model	20G1ABD740AN0NNNNN
Application Level	High-Power Industrial
Typical Loads	Conveyors, Pumps, Fans, Crushers, Blowers, Mixers, Process Machinery

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28. Final Product Assessment

The 20G1ABD740JN0NNNNN is a high-power PowerFlex 755 AC drive intended for applications where motor capacity, centralized automation, and reliable industrial operation are more important than compact physical size.

Its 740 A output rating, 700 HP Light-Duty capacity, 650 HP Normal-Duty capacity, and 500 HP Heavy-Duty capacity make it appropriate for very large industrial motors.

The No-HIM configuration is one of its most distinctive characteristics. Rather than providing a local display, the drive is intended to fit naturally into an automation architecture where the PLC, HMI, SCADA system, or plant control network handles normal operator interaction.

This makes the model particularly attractive for large automated facilities.

For a conveyor system, mining machine, crusher, pump station, large fan, cement plant, aggregate facility, or process machine, the drive can provide the current capacity and control architecture required by a large motor.

The Frame 8, 600 mm deep MCC-style construction also makes it appropriate for centralized electrical rooms and large motor-control installations.

From a maintenance and system-design perspective, the most important points are the 740 A current capacity, the duty-dependent horsepower ratings, the no-HIM configuration, the embedded EtherNet/IP capability, the forced-air cooling system, the EMC filtering, and the CM-jumper-installed configuration.

For existing systems using 20G1ABD740AN0NNNNN, the J-series 20G1ABD740JN0NNNNN provides the direct replacement path while retaining the same general 740 A / 480 VAC / Frame 8 / no-HIM application concept.

Overall, this model is best regarded as a large-frame, high-current, centralized-control AC drive for large industrial motor applications, rather than a general-purpose compact VFD.