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1. Product Overview

The 20G1ABD740JN2NNNNN is a high-power air-cooled AC drive belonging to the PowerFlex 755 series. It is designed for large industrial motor applications where high output current, substantial motor horsepower, precise speed control, reliable operation, and integration with an industrial automation system are required.

This model is rated for 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.

With a 740 A output rating and Frame 8 construction, this drive is intended for large motors and heavy industrial equipment rather than small machine applications. Typical installations include large conveyors, mining machinery, crushers, pumps, fans, blowers, mixers, material-handling systems, cement and aggregate equipment, and large process machines.

One of the defining features of the 20G1ABD740JN2NNNNN is its Enhanced LCD Full Numeric Handheld/Local HIM configuration. This gives maintenance personnel and operators the ability to access drive information locally when required.

Compared with the No-HIM version, the JN2 configuration is particularly useful when local commissioning, troubleshooting, parameter inspection, and maintenance are important.

The drive uses forced-air cooling, an AC input with precharge, no DC terminals, filtered EMC configuration, and a CM jumper installed configuration. Dynamic braking is not included in the standard configuration.

The model is an active J-series configuration and serves as the direct replacement for the earlier 20G1ABD740AN2NNNNN configuration.

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2. Brand and Series

Category	Specification
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	20G1ABD740JN2NNNNN
Drive Class	High-Power Industrial AC Drive
Cooling Method	Forced Air
Frame	Frame 8
Input Voltage	480 VAC
Input Phase	3 Phase
Output Current	740 A
HIM Configuration	Enhanced LCD Full Numeric Handheld/Local HIM
Enclosure	Type 1 / IP20
Installation Style	600 mm Deep MCC Style
Lifecycle	Active
Previous Related Model	20G1ABD740AN2NNNNN
Replacement Relationship	Direct replacement configuration

The PowerFlex 755 series is an architecture-class low-voltage AC drive platform intended for applications requiring considerably more capability than a compact general-purpose VFD.

The 20G1ABD740JN2NNNNN represents a very high-power configuration within the 480 VAC range and is particularly appropriate for large centralized industrial motor-control systems.

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3. Detailed Technical Parameters

Parameter	Specification
Catalog Number	20G1ABD740JN2NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	Air-Cooled AC Drive
Input Voltage	480 VAC
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 Configuration	AC Input with Precharge
DC Terminals	None
Cooling	Forced Air
Enclosure	Type 1 / IP20
MCC Installation	600 mm Deep MCC Style
Frame	Frame 8
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Enhanced LCD Full Numeric
HIM Type	Handheld / Local HIM
Communication	Embedded EtherNet/IP
Fan Type	Backward-Curved Centrifugal
Approx. Fan Airflow	1805 m³/h
Approx. Fan Electrical Input	0.45 kW
Approx. Overall Height	2100 mm
Approx. Overall Width	610 mm
Approx. Overall Depth	600 mm
Approx. Dimensions	2100 × 610 × 600 mm
Approx. Weight	634 kg
Approx. Weight in Pounds	1397 lb
Application Class	High-Power Industrial
Typical Loads	Conveyors, Pumps, Fans, Crushers, Blowers, Mixers, Process Machinery

The dimensional and weight figures should be treated as approximate engineering values for this large Frame 8 configuration. Actual installation, shipping, lifting, and floor-loading calculations should be based on the applicable mechanical documentation and the actual equipment configuration.

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4. Electrical Rating

The most important specification of the 20G1ABD740JN2NNNNN is its 740 A output-current capacity.

For large industrial motors, current rating is more useful for final drive selection than horsepower conversion alone. Motor current depends on motor voltage, efficiency, power factor, motor design, operating conditions, and load characteristics.

At 480 VAC three-phase operation, this configuration provides approximately:

• 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 conversions are useful for general comparison. Actual drive sizing should be based on the motor nameplate current and the application’s duty requirements.

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

The three duty classifications allow the same basic drive platform to be used across different load characteristics.

Light Duty — Approximately 700 HP

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

This is suitable for applications where the load is relatively smooth and the motor does not require the higher overload capability associated with heavy-duty service.

Large fans and certain pump applications are examples where Light-Duty capacity may be useful.

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Normal Duty — Approximately 650 HP

The Normal-Duty rating is approximately 650 HP.

This provides a strong continuous-duty capability for large industrial machines that operate for extended periods.

Applications may include conveyors, process machinery, pumps, and other continuously operating equipment.

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Heavy Duty — Approximately 500 HP

The Heavy-Duty rating is approximately 500 HP.

Heavy-Duty applications generally require greater overload capability, higher starting torque, more demanding acceleration, or repeated load changes.

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

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6. Enhanced LCD Full Numeric Handheld/Local HIM

The 20G1ABD740JN2NNNNN includes an Enhanced LCD Full Numeric Handheld/Local HIM.

This is one of the most important differences between the JN2 and JN0 configurations.

The JN0 configuration is designed without a local HIM, whereas the JN2 provides a local operator interface for commissioning, maintenance, and troubleshooting.

The local HIM can be used to perform functions such as:

• Drive status monitoring
• Fault inspection
• Alarm inspection
• Parameter viewing
• Parameter adjustment
• Local commissioning
• Motor operating-status checking
• Troubleshooting
• Drive configuration
• Maintenance support

For a large industrial drive, having a local interface can significantly reduce maintenance time.

Instead of requiring an engineer to connect through the plant control system every time drive information is needed, personnel can access important information directly at the drive.

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7. Why the JN2 HIM Configuration Is Useful

The handheld/local HIM configuration is particularly useful for applications where the drive is installed in an electrical room but local service access is still required.

For example, a mining conveyor may be controlled automatically by a PLC during normal production.

However, when maintenance personnel need to investigate a fault, check a parameter, or confirm the drive operating state, the local HIM can provide a convenient interface.

The same principle applies to:

• Large pumping stations
• Mining equipment
• Crushers
• Cement machinery
• Large fans
• Process equipment
• Material-handling systems

The HIM therefore complements rather than replaces centralized automation.

The PLC can remain responsible for normal machine control while the local HIM provides a useful maintenance and commissioning interface.

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8. Embedded EtherNet/IP Communication

The 20G1ABD740JN2NNNNN includes embedded EtherNet/IP communication.

This allows the drive to participate directly in a modern industrial control architecture.

A PLC or supervisory control system can exchange operating information with the drive through the industrial network.

Typical information may include:

• Start command
• Stop command
• Speed reference
• Actual speed
• Output current
• Drive status
• Fault information
• Alarm information
• Diagnostic information
• Selected parameter information

For a large facility with many drives, network communication makes it possible to monitor multiple motors from a common automation system.

This is particularly valuable for large production lines where the motor drive is only one part of a larger automated process.

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9. AC Input With Precharge

The drive uses an AC input with precharge.

The precharge function controls the initial charging of the internal DC bus capacitors when the drive is energized.

This is particularly important for a drive of this size because the DC bus contains substantial energy-storage components.

Controlled precharge helps limit the initial charging current and reduces unnecessary electrical stress during energization.

The configuration does not provide DC terminals, so it is intended for conventional AC-fed operation rather than applications requiring direct access to the external DC bus.

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10. EMC Filtering

The 20G1ABD740JN2NNNNN uses a filtered configuration.

EMC filtering helps control conducted electromagnetic interference generated by the drive’s high-frequency switching operation.

This is useful in industrial plants containing sensitive electronic equipment such as:

• PLCs
• Industrial Ethernet equipment
• Instrumentation
• Sensors
• Measurement systems
• Control modules
• Communication equipment

The filter is especially relevant when large motor drives are installed in the same electrical environment as sensitive automation equipment.

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11. CM Jumper Configuration

The JN2 configuration uses the CM jumper installed arrangement.

This is an important distinction between the newer J-series configuration and the older A-series version.

The older:

20G1ABD740AN2NNNNN

used the earlier CM-jumper-removed configuration.

The newer:

20G1ABD740JN2NNNNN

uses the CM-jumper-installed configuration.

This difference should be considered during replacement planning because grounding, common-mode behavior, EMC performance, and system configuration may all be relevant to the installation.

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12. Cooling System

The 20G1ABD740JN2NNNNN is an air-cooled, forced-air drive.

At 740 A, the drive operates with a substantial amount of electrical power flowing through the power semiconductor section.

Heat generated by conduction and switching losses must therefore be removed continuously.

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

Representative cooling characteristics include:

Cooling Parameter	Approximate Value
Fan Type	Backward-Curved Centrifugal
Airflow	1805 m³/h
Airflow	0.5 m³/s
Electrical Fan Input	0.45 kW
Fan Efficiency	63.7%
Applicable Pressure Difference	Approx. 527 Pa
Cooling Method	Forced Air

The installation must provide sufficient ventilation and should not obstruct the intake or exhaust airflow.

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13. Mechanical Construction

The 20G1ABD740JN2NNNNN is a Frame 8 high-power drive with a 600 mm deep MCC-style construction.

This is a substantial industrial device and normally requires an appropriately designed electrical room, MCC lineup, or large control cabinet.

The approximate physical envelope is:

2100 mm high × 610 mm wide × 600 mm deep

The large dimensions are necessary to accommodate the power section, bus structures, cooling system, protective components, and associated high-power electrical hardware.

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14. Dimensions and Weight

Mechanical Parameter	Approximate Specification
Model	20G1ABD740JN2NNNNN
Frame	Frame 8
Enclosure	Type 1 / IP20
MCC Style	600 mm Deep
Height	Approx. 2100 mm
Width	Approx. 610 mm
Depth	Approx. 600 mm
Overall Dimensions	Approx. 2100 × 610 × 600 mm
Approx. Weight	634 kg
Approx. Weight	1397 lb
Cooling	Forced Air
Fan Type	Backward-Curved Centrifugal
Approx. Airflow	1805 m³/h

The approximate 634 kg weight should be considered when planning transportation, floor loading, lifting, installation, and maintenance access.

For actual lifting operations, the equipment’s final mechanical documentation and shipping information should be used rather than relying solely on an approximate product weight.

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15. Product Applications

Large Conveyor Systems

Large conveyors are one of the most suitable application areas for this drive.

Conveyor motors can be very large, particularly in mining, cement, aggregate, port, and bulk-material handling operations.

The drive can provide controlled acceleration and speed regulation while the automation system manages the overall production sequence.

Typical applications include:

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

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Mining Applications

Mining operations frequently contain some of the largest industrial motor loads.

The 20G1ABD740JN2NNNNN can be considered for:

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

The local HIM is particularly useful in mining because maintenance personnel may need to diagnose drive conditions directly at the equipment.

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Crusher Systems

Crushers can produce highly variable mechanical loading.

The motor may experience demanding acceleration conditions and load changes.

A high-power AC drive can provide controlled acceleration and speed regulation while allowing the crusher to be integrated into the overall plant automation system.

The actual motor current and overload requirement must remain within the applicable drive rating.

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Large Pumping Systems

Large pumps are another major application.

Typical installations include:

• Water-treatment plants
• Wastewater systems
• Mining dewatering
• Cooling-water systems
• Industrial process pumps
• Large circulation pumps
• Utility pumping systems

Variable-speed control allows pump operation to be adjusted according to process requirements.

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Large Fans and Blowers

Large fans can require hundreds of horsepower.

Typical applications include:

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

For these applications, variable-speed control can help match airflow to production requirements.

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Cement and Aggregate Equipment

Cement and aggregate plants often contain multiple large motors.

The drive can be used for:

• Conveyors
• Crushers
• Fans
• Pumps
• Mixers
• Material-handling equipment
• Process machinery

The combination of high current, local HIM, and network communication makes it well suited to centralized industrial facilities.

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Large Mixers and Agitators

Large mixers and agitators may require significant starting torque and controlled acceleration.

The PowerFlex 755 platform can provide a suitable high-power motor-control architecture when the motor and load characteristics fall within the applicable rating.

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16. Main Product Advantages

1. Very High 740 A Output Rating

The biggest advantage of this model is its 740 A output capacity.

This makes it suitable for very large motors and heavy industrial machinery.

It provides a single-drive solution for applications where smaller drives would not have sufficient current capacity.

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2. High Horsepower Capability

The approximately 700 HP Light-Duty rating is substantial.

The 650 HP Normal-Duty and 500 HP Heavy-Duty ratings also provide flexibility across different application types.

This allows the same basic drive platform to be applied to a range of large industrial loads.

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3. Local Handheld HIM

The Enhanced LCD Full Numeric Handheld/Local HIM is particularly useful for maintenance.

It provides local access to operating information without requiring a technician to rely exclusively on the plant PLC or SCADA system.

This can simplify:

• Commissioning
• Parameter setup
• Troubleshooting
• Fault diagnosis
• Maintenance
• Local status checking

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4. Centralized Automation Integration

Although the drive has a local HIM, it also supports embedded EtherNet/IP.

This allows the drive to function both as a locally serviceable device and as part of a centralized automation system.

That combination is useful in large industrial facilities.

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5. Frame 8 High-Power Architecture

Frame 8 construction provides the physical scale necessary for a high-current drive.

It allows the drive to accommodate high-power semiconductors, bus structures, cooling systems, and associated components.

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6. Forced-Air Thermal Management

The forced-air cooling architecture is designed for high-power operation.

Proper airflow helps remove heat from the drive’s power section and supports reliable continuous operation.

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7. EMC Filtering

The filtered configuration helps control conducted electrical noise.

This is useful where the drive shares an electrical environment with automation, instrumentation, and communication equipment.

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8. AC Precharge

The precharge system provides controlled energization of the internal DC bus.

This is particularly important for a high-power drive because the DC bus capacitors represent a substantial electrical load during startup.

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9. Flexible Application Range

The combination of current capacity and multiple duty ratings makes the drive useful across many large-machine applications.

It can be considered for:

• Pumps
• Fans
• Conveyors
• Crushers
• Mixers
• Blowers
• Mining equipment
• Process machinery
• Material-handling systems

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17. JN2 Versus JN0 and JN4

The 740 A PowerFlex 755 configurations are particularly easy to compare by looking at the operator-interface arrangement.

Model	Output Current	LD	ND	HD	HIM Configuration	Main Advantage
20G1ABD740JN0NNNNN	740 A	700 HP	650 HP	500 HP	No HIM	Centralized automation
20G1ABD740JN2NNNNN	740 A	700 HP	650 HP	500 HP	Handheld / Local LCD	Local commissioning and maintenance
20G1ABD740JN4NNNNN	740 A	700 HP	650 HP	500 HP	Door-Mounted LCD	Operator access from enclosure exterior

The JN2 version is therefore the middle-ground configuration.

It provides a local interface without requiring the permanent door-mounted display arrangement of the JN4.

For maintenance-oriented installations, this can be a very practical configuration.

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18. Comparison With the Previous A-Series Model

Parameter	20G1ABD740AN2NNNNN	20G1ABD740JN2NNNNN
Series	PowerFlex 755	PowerFlex 755
Input	480 VAC, 3 PH	480 VAC, 3 PH
Output Current	740 A	740 A
Light Duty	700 HP	700 HP
Normal Duty	650 HP	650 HP
Heavy Duty	500 HP	500 HP
HIM	Handheld / Local LCD	Handheld / Local LCD
Cooling	Forced Air	Forced Air
Frame	8	8
MCC Depth	600 mm	600 mm
EMC Filtering	Filtered	Filtered
CM Jumper	Removed	Installed
Dynamic Braking	None	None
Input	AC with Precharge	AC with Precharge
DC Terminals	None	None
Approx. Dimensions	~2100 × 610 × 600 mm	~2100 × 610 × 600 mm
Approx. Weight	~544 kg class	~634 kg class
Lifecycle	Discontinued	Active
Relationship	Previous configuration	Direct replacement

The basic power capability is very similar between the two models.

The most important configuration difference is the CM-jumper arrangement associated with the newer J-series configuration.

For replacement projects, the complete electrical system should be reviewed before installation.

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19. Five Recommended Related Models

The following five models are closely related to the 20G1ABD740JN2NNNNN and are useful when selecting an alternative configuration or comparing different current ratings.

Model	Series	Input	Current	LD Rating	ND Rating	HD Rating	HIM	Frame	Approx. Dimensions	Approx. Weight
20G1ABD740JN0NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 HP	650 HP	500 HP	No HIM	8	~2100 × 610 × 600 mm	~634 kg
20G1ABD740JN4NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 HP	650 HP	500 HP	Door-Mounted LCD	8	~2100 × 610 × 600 mm	~634 kg
20G1ABD710JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	710 A	650 HP	600 HP	450 HP	Handheld / Local LCD	8	~2100 × 610 × 600 mm	~634 kg class
20G1ABD617JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	617 A	600 HP	500 HP	400 HP	Handheld / Local LCD	8	~2100 × 610 × 600 mm	~623–635 kg class
20G1ABD545JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	545 A	500 HP	450 HP	350 HP	Handheld / Local LCD	8	Large Frame	~620 kg class

20G1ABD740JN0NNNNN

This is the no-HIM version of the same 740 A drive.

It is ideal when the PLC, HMI, or SCADA system is the primary operator interface.

The power rating remains approximately 700 HP LD, 650 HP ND, and 500 HP HD.

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20G1ABD740JN4NNNNN

This is the door-mounted HIM version of the same 740 A configuration.

It is particularly suitable where operators need direct access to the display from outside the enclosure.

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20G1ABD710JN2NNNNN

The 710 A configuration provides slightly less current capacity while retaining the same general high-power Frame 8 architecture.

Its approximate ratings are:

• 650 HP LD
• 600 HP ND
• 450 HP HD

It can be considered where 740 A capacity is not required.

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20G1ABD617JN2NNNNN

The 617 A model provides another step down in current capacity.

Its approximate ratings are:

• 600 HP LD
• 500 HP ND
• 400 HP HD

This can be a better-sized selection for motors whose nameplate current is substantially below 740 A.

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20G1ABD545JN2NNNNN

The 545 A configuration is useful for somewhat smaller large-motor applications.

Its approximate ratings are:

• 500 HP LD
• 450 HP ND
• 350 HP HD

It remains within the same PowerFlex 755 architecture but provides a lower current capacity.

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20. Five Popular Allen-Bradley Models

The following models provide useful comparison points across the broader product portfolio.

Model	Product Series	Typical Voltage Class	Approx. Current / Capacity	Typical Application	Approx. Dimensions	Approx. Weight
25B-D030N114	PowerFlex 525	480 VAC class	30 A class	Compact machine control	Compact	Several kg class
25C-D030N114	PowerFlex 527	480 VAC class	30 A class	Machine automation	Compact	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 and belong to a different application class.

The last three are closer in architecture because they are high-power PowerFlex 755 configurations intended for large industrial motor applications.

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21. Application Selection Table

Application	Suitability	Typical Reason
Large Conveyor	Excellent	High current and controlled acceleration
Mining Conveyor	Excellent	Large motor and centralized control
Crusher	Excellent	High-power motor control
Large Pump	Excellent	Variable-speed flow control
Large Fan	Excellent	High-power speed regulation
Large Blower	Excellent	Process airflow control
Cement Equipment	Excellent	Heavy industrial motor loads
Aggregate Machinery	Excellent	High-power material processing
Material Handling	Excellent	Large motor and network control
Large Mixer	Excellent	Controlled acceleration and speed
Process Machinery	Excellent	High-power automated operation
Small Machine	Generally oversized	740 A capacity is excessive
Small Pump	Generally oversized	Smaller drive may be more economical

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22. Installation Requirements

Because the 20G1ABD740JN2NNNNN is a large Frame 8 drive, the installation should be planned as part of the complete electrical system.

Important considerations include:

Electrical Clearance

Adequate clearance should be provided around the drive for installation, cable termination, inspection, and maintenance.

Cooling Airflow

The forced-air cooling system requires sufficient air circulation.

The cabinet or electrical room should not restrict the cooling-air intake or exhaust.

Ambient Conditions

The surrounding environment should remain within the allowable temperature and humidity range for the drive.

High ambient temperatures can reduce available thermal capacity.

Grounding

Proper grounding is important for electrical safety, EMC performance, and reliable operation.

Motor Cable Installation

Motor cables should be selected and routed according to the drive installation requirements and the overall plant electrical design.

Maintenance Space

The large physical size and approximately 634 kg mass require careful planning for maintenance and replacement.

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23. Maintenance Advantages

The JN2 configuration is particularly attractive for maintenance-oriented installations.

The local HIM allows technicians to inspect drive conditions directly.

Useful information can include:

• Operating state
• Motor speed
• Output current
• Fault information
• Alarm information
• Parameter values
• Drive status
• Communication status
• Diagnostic information

This can reduce troubleshooting time, especially when the drive is located some distance from the main control room.

For a large mining machine or pumping station, direct local access can be extremely useful during commissioning and maintenance.

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24. No Dynamic Braking

The standard configuration of the 20G1ABD740JN2NNNNN does not include dynamic braking.

This is suitable for many applications where the motor does not require aggressive deceleration or significant dissipation of regenerative energy.

Applications with high-inertia loads or frequent rapid deceleration should be evaluated separately.

If the application requires substantial braking performance, the complete braking architecture should be designed around the actual motor inertia, deceleration time, load characteristics, and regeneration requirements.

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25. Product Advantages in Practical Terms

The 740 A current capacity means that the drive can handle very large motors.

The 700 HP Light-Duty rating makes it suitable for large fan, pump, conveyor, and similar applications.

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

The 500 HP Heavy-Duty rating provides useful capacity for more demanding loads.

The local HIM makes commissioning and troubleshooting easier.

The embedded EtherNet/IP interface makes integration with centralized automation straightforward.

The Frame 8 construction provides an appropriate platform for high-power industrial applications.

The forced-air cooling system provides the thermal capacity required for high-current operation.

The EMC-filtered configuration helps manage electrical interference.

The CM jumper installed configuration represents the newer preferred configuration associated with this J-series model.

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26. Catalog Number and Configuration

The catalog number is:

20G1ABD740JN2NNNNN

The complete catalog number should always be considered as a single configuration identifier.

The most useful practical characteristics represented by the model are its PowerFlex 755 family, 480 VAC class, 740 A current rating, filtered configuration, J-series CM-jumper arrangement, and local handheld HIM.

The final configuration should always be checked against the actual equipment nameplate before ordering a replacement.

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27. Overall Product Assessment

The 20G1ABD740JN2NNNNN is a high-power industrial AC drive designed for large motors and demanding variable-speed applications.

Its 740 A output capacity makes it suitable for some of the largest conventional low-voltage industrial motor applications.

The approximately 700 HP Light-Duty, 650 HP Normal-Duty, and 500 HP Heavy-Duty ratings provide considerable flexibility.

The Enhanced LCD Full Numeric Handheld/Local HIM is one of the most useful features for maintenance-oriented installations.

Unlike the JN0 version, which is intended primarily for centralized control without a local HIM, the JN2 allows technicians to work directly with the drive when commissioning or troubleshooting.

At the same time, embedded EtherNet/IP allows the drive to remain part of the plant-wide automation network.

This combination gives the JN2 configuration a practical balance between centralized automation and local maintenance access.

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28. Final Technical Summary

Category	20G1ABD740JN2NNNNN
Brand	Allen-Bradley
Product Family	PowerFlex 750-Series
Series	PowerFlex 755
Product Type	Air-Cooled AC Drive
Catalog Number	20G1ABD740JN2NNNNN
Input Voltage	480 VAC
Input Phase	3 Phase
Output Current	740 A
Light-Duty Rating	700 HP
Normal-Duty Rating	650 HP
Heavy-Duty Rating	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
Frame	Frame 8
Enclosure	Type 1 / IP20
MCC Style	600 mm Deep
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Enhanced LCD Full Numeric
HIM Configuration	Handheld / Local
Communication	Embedded EtherNet/IP
Fan Type	Backward-Curved Centrifugal
Approx. Airflow	1805 m³/h
Approx. Fan Input	0.45 kW
Approx. Dimensions	2100 × 610 × 600 mm
Approx. Weight	634 kg
Approx. Weight in Pounds	1397 lb
Lifecycle	Active
Related Previous Model	20G1ABD740AN2NNNNN
Application Level	High-Power Industrial
Typical Applications	Conveyors, Pumps, Fans, Crushers, Blowers, Mixers, Mining and Process Machinery

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29. Conclusion

The Allen-Bradley 20G1ABD740JN2NNNNN is a high-capacity PowerFlex 755 AC drive designed for large industrial motor-control applications.

Its core specifications — 480 VAC, three-phase input, 740 A output, 700 HP Light Duty, 650 HP Normal Duty, and 500 HP Heavy Duty — place it firmly in the large industrial-drive category.

The Frame 8, 600 mm deep MCC-style construction provides the physical architecture required for this power level, while the forced-air cooling system manages the thermal requirements of high-current operation.

The most distinctive feature of the JN2 configuration is its Enhanced LCD Full Numeric Handheld/Local HIM.

This makes the model especially attractive for plants where centralized PLC/HMI control is required during normal operation but maintenance personnel also need convenient local access to the drive.

Its embedded EtherNet/IP communication, EMC filtering, AC precharge, and CM-jumper-installed configuration further support its use in modern industrial automation systems.

For large conveyors, mining equipment, crushers, pumps, fans, blowers, cement machinery, aggregate equipment, mixers, and process machinery, this model provides a combination of high current capacity, flexible motor control, network integration, and practical local maintenance access.

In short, the 20G1ABD740JN2NNNNN can be regarded as a 740 A, 480 VAC, Frame 8 PowerFlex 755 high-power AC drive with local handheld operator capability, intended for large-scale industrial motor control where both centralized automation and local service access are important.