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Allen-Bradley 20G14NF263JA0NNNNN PowerFlex 755 AC Drive — Detailed Product Specifications, Applications, Advantages and Related Models

1. Product Overview

The Allen-Bradley 20G14NF263JA0NNNNN is a high-power PowerFlex 755 air-cooled AC drive designed for large industrial motor-control applications.

This model is rated for 690 VAC, three-phase operation, with a 263 A Normal Duty rating corresponding to 250 kW and a 200 kW Heavy Duty rating. It is a Frame 7 drive with forced-air cooling, an open-type construction, embedded Ethernet/IP capability, filtered configuration, an installed CM jumper, and a built-in dynamic braking transistor.

The JA0 configuration is particularly important because this version includes the internal dynamic braking transistor. The drive does not contain a built-in braking resistor; when dynamic braking is required, an appropriately selected external braking resistor is used with the drive’s braking circuit.

The drive uses a DC input with precharge arrangement and is intended primarily for installation inside an appropriately designed industrial cabinet or electrical enclosure.

Because of its 250 kW Normal Duty rating, this is not a compact general-purpose drive. It belongs to the high-power end of the PowerFlex 755 family and is intended for large pumps, fans, compressors, conveyors, process machinery, material-handling equipment, and other demanding industrial systems.

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2. Basic Product Identification

Parameter	Specification
Brand	Allen-Bradley
Product Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Product Type	PowerFlex Air-Cooled 755 AC Drive
Model / Part Number	20G14NF263JA0NNNNN
Voltage Class	690 VAC
Phase	3 Phase
Input Configuration	DC Input with Precharge
Normal Duty Current	263 A
Normal Duty Power	250 kW
Heavy Duty Current	212 A
Heavy Duty Power	200 kW
Cooling Method	Forced Air / Air Cooled
Frame Size	Frame 7
Enclosure	Open Type
Dynamic Braking	DB Transistor
Internal Dynamic Braking Transistor	Included
Internal Braking Resistor	Not Included
Filtering	Filtered
CM Jumper	Installed
Human Interface Module	Blank / No HIM
Network Capability	Embedded Ethernet/IP
Approx. Dimensions	430 × 881.5 × 349.6 mm
Approx. Weight	72.6–108.9 kg
Installation	Industrial Cabinet / Panel
Main Function	High-Power Variable-Speed Motor Control

The core product configuration identifies the unit as a PowerFlex 755 air-cooled AC drive with embedded Ethernet/IP, DC input with precharge, 263 A Normal Duty capability, 250 kW Normal Duty power, 200 kW Heavy Duty power, 690 VAC three-phase operation, Frame 7 construction, filtering, CM jumper installed, DB transistor, and no HIM.

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3. Detailed Electrical Specifications

The 20G14NF263JA0NNNNN is designed for high-power motor applications where a conventional small or medium-sized drive would not provide sufficient current capacity.

Its primary Normal Duty rating is 263 A and 250 kW.

The Heavy Duty rating is 212 A and 200 kW.

This distinction matters when selecting the drive for an actual machine. The motor’s nameplate kW should not be the only selection criterion.

For a continuous-duty pump or fan, the Normal Duty rating may be the primary reference.

For a conveyor, mixer, crusher, high-inertia machine, or another application with greater overload requirements, the Heavy Duty rating can become the more important value.

Electrical Parameter	Specification
Model / Part Number	20G14NF263JA0NNNNN
Rated Voltage	690 VAC
Phase	3 Phase
Input Type	DC Input with Precharge
Normal Duty Current	263 A
Normal Duty Power	250 kW
Heavy Duty Current	212 A
Heavy Duty Power	200 kW
Cooling	Forced Air
Frame	Frame 7
Dynamic Braking	DB Transistor
Filtering	Filtered
CM Jumper	Installed
HIM	Blank / No HIM
Network	Embedded Ethernet/IP
Enclosure Type	Open Type
Approx. Dimensions	430 × 881.5 × 349.6 mm
Approx. Weight	72.6–108.9 kg

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4. Normal Duty Rating

The 250 kW Normal Duty rating is the defining power characteristic of this model.

At 263 A, the drive is intended for large motors and industrial machinery that require substantial continuous power.

Normal Duty applications generally have more predictable load characteristics and less severe overload requirements than Heavy Duty applications.

Large centrifugal pumps, fans, blowers, and certain compressors are examples of equipment that can often be evaluated using the Normal Duty rating.

The actual motor current must still be checked before final selection.

A 250 kW motor should not automatically be paired with a 263 A drive simply because the kW figures appear to match.

Motor efficiency, power factor, voltage, service conditions, ambient temperature, altitude, operating speed, and load profile can all affect the final drive selection.

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5. Heavy Duty Rating

The Heavy Duty rating is 212 A / 200 kW.

Heavy Duty operation is intended for applications where the drive and motor system can experience greater overload requirements.

This can include high-inertia machinery, conveyors, mixers, material-handling systems, crushers, and other equipment where starting and acceleration require higher torque.

The Heavy Duty rating should be checked against the motor’s actual current and the machine’s required overload profile.

Duty Rating	Current	Power	Typical Load Characteristics
Normal Duty	263 A	250 kW	Relatively smooth industrial loads
Heavy Duty	212 A	200 kW	More demanding overload and acceleration conditions
Frame	—	Frame 7	High-power industrial drive

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6. Product Introduction

The 20G14NF263JA0NNNNN is a high-capacity industrial variable-frequency drive intended for applications where motor speed and torque need to be controlled electronically.

Instead of operating a large motor continuously at fixed speed, the drive allows the motor to operate according to process requirements.

This can be useful in large pumping systems, ventilation equipment, conveyors, compressors, mixers, and many other types of industrial machinery.

The PowerFlex 755 architecture is particularly useful in automated facilities because the drive can be integrated into a larger control system.

The embedded Ethernet/IP capability allows the drive to communicate with the plant’s control architecture, making it possible to coordinate motor operation with PLC logic, HMI functions, process sequencing, alarms, and diagnostics.

The 263 A version is a Frame 7 design, which places it physically and electrically in the high-power range of the product family.

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7. Product Series

The product belongs to the PowerFlex 755 series.

The PowerFlex 755 series is designed for industrial applications requiring more sophisticated motor control and system integration than small standalone drives.

The series provides a broad range of current and power ratings, making it possible to standardize drive architecture across different sections of a plant.

The 20G14NF263JA0NNNNN is one of the larger 690 VAC air-cooled configurations in the family.

Series Parameter	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Family	PowerFlex 750-Series
Model / Part Number	20G14NF263JA0NNNNN
Product Type	High-Power AC Drive
Voltage Class	690 VAC
Phase	3 Phase
Cooling	Air Cooled
Frame	Frame 7
Normal Duty Power	250 kW
Heavy Duty Power	200 kW

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8. Dynamic Braking Configuration

The JA0 configuration includes a dynamic braking transistor.

This is one of the most important features separating this model from the JN0 version.

When a motor is decelerated, especially when it is connected to a large rotating load, mechanical energy can be returned to the drive’s DC bus.

If the application requires rapid deceleration, that regenerative energy needs to be managed.

The dynamic braking transistor provides the switching interface used with an external braking resistor.

The braking resistor itself is not integrated into the drive.

Therefore, the braking system needs to be designed as a complete system, taking into account resistance value, power rating, pulse energy, braking frequency, duty cycle, thermal conditions, and protective requirements.

Dynamic Braking Parameter	Specification
Model / Part Number	20G14NF263JA0NNNNN
Dynamic Braking	DB Transistor
DB Transistor	Included
Internal Braking Resistor	Not Included
External Braking Resistor	Used when braking function is required
Typical Purpose	Dissipation of regenerative braking energy
Suitable Applications	High-inertia machinery, rapid deceleration, conveyors, rotating equipment
Braking Design	Application-specific

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9. JA0 Versus JN0

The closely related 20G14NF263JN0NNNNN has the same general 690 VAC, 263 A Normal Duty / 250 kW and 212 A Heavy Duty / 200 kW power class, but it does not include the internal dynamic braking transistor.

The JA0 model is therefore the more appropriate choice when dynamic braking capability is required as part of the drive configuration.

The JN0 model is suitable when the application does not require the internal DB transistor.

Parameter	20G14NF263JA0NNNNN	20G14NF263JN0NNNNN
Voltage	690 VAC	690 VAC
Normal Duty	263 A / 250 kW	263 A / 250 kW
Heavy Duty	212 A / 200 kW	212 A / 200 kW
Frame	7	7
Cooling	Forced Air	Forced Air
Input	DC Input with Precharge	DC Input with Precharge
Dynamic Braking Transistor	Included	Not Included
Internal Braking Resistor	No	No
Filtering	Filtered	Filtered
CM Jumper	Installed	Installed
HIM	Blank / No HIM	Blank / No HIM
Approx. Dimensions	430 × 881.5 × 349.6 mm	430 × 881.5 × 349.6 mm
Approx. Weight	72.6–108.9 kg	72.6–108.9 kg

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10. Mechanical Specifications

The 20G14NF263JA0NNNNN is a Frame 7 drive.

The approximate dimensions are:

430 mm × 881.5 mm × 349.6 mm

The approximate weight range is:

72.6–108.9 kg

These are substantial physical dimensions and weight values, so the drive should be treated as a major cabinet component.

The cabinet should provide adequate room for power wiring, motor connections, grounding, control wiring, network connections, ventilation, and service access.

The actual mechanical arrangement should also account for the surrounding components installed in the same enclosure.

Mechanical Parameter	Specification
Model / Part Number	20G14NF263JA0NNNNN
Frame	Frame 7
Width	Approx. 430 mm
Height	Approx. 881.5 mm
Depth	Approx. 349.6 mm
Overall Dimensions	Approx. 430 × 881.5 × 349.6 mm
Weight	Approx. 72.6–108.9 kg
Cooling	Forced Air
Enclosure	Open Type
Installation	Cabinet / Panel
Mounting	Vertical Industrial Installation
Thermal Management	Forced-Air Ventilation
Service Access	Required

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11. Environmental Specifications

A high-power forced-air drive needs a properly managed installation environment.

The typical operating temperature is approximately 0 to 50 °C, subject to the applicable rating conditions.

Relative humidity is approximately 5–95% non-condensing, while the storage temperature range is approximately -40 to +70 °C.

Condensation should be avoided.

Cabinet temperature should also be monitored because a high-power drive can produce significant heat during operation.

Environmental Parameter	Typical Specification / Consideration
Model / Part Number	20G14NF263JA0NNNNN
Cooling	Forced Air
Operating Temperature	Approx. 0 to 50 °C
Relative Humidity	Approx. 5–95%, non-condensing
Storage Temperature	Approx. -40 to +70 °C
Enclosure	Open Type
Condensation	Must be avoided
Cabinet Ventilation	Required
Dust	Appropriate environmental control required
High Ambient Temperature	Verify applicable derating
Altitude	Verify application requirements

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12. Main Applications

12.1 Large Industrial Pumps

Large pumps are one of the most common applications for high-power AC drives.

A variable-frequency drive allows pump speed to follow process demand.

Instead of continuously running the pump at full speed, the motor can be operated at a speed appropriate for the required flow and pressure.

The 250 kW Normal Duty rating gives the model enough capacity for large industrial pumping systems.

Typical applications include process water, cooling water, water treatment, industrial circulation systems, and large fluid-transfer equipment.

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12.2 Large Fans and Blowers

Industrial fans and blowers can require hundreds of kilowatts of motor power.

Variable-speed operation allows airflow to be adjusted without relying entirely on mechanical throttling.

This makes the drive useful for large ventilation systems, industrial exhaust equipment, process-air systems, combustion-air systems, and large cooling installations.

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12.3 Compressors

Large compressors often require substantial motor power and controlled acceleration.

The 690 VAC configuration is suitable for industrial facilities where high-voltage motor distribution is already part of the electrical architecture.

The drive’s communication capability also makes it suitable for compressor systems that are monitored and controlled from a central automation system.

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12.4 Large Conveyors

Large conveyors can require high motor power, especially in mining, bulk material handling, ports, processing plants, and large production facilities.

The drive can control conveyor acceleration, running speed, and deceleration.

For applications with substantial regenerative energy during deceleration, the JA0 dynamic braking configuration can be particularly useful.

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12.5 Mixers and Agitators

Large mixers and agitators can have demanding starting conditions.

Material viscosity, vessel loading, blade geometry, and process conditions can all influence motor torque requirements.

For such applications, the Heavy Duty rating of 200 kW should be evaluated carefully against the actual motor current and mechanical requirements.

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12.6 Centrifuges

Centrifuges can store substantial rotational energy.

Controlled acceleration and deceleration are therefore important.

The JA0 configuration is useful where a properly engineered dynamic braking system is required.

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12.7 Material Handling Equipment

Large material-handling equipment benefits from controlled motor operation.

Applications may include:

• Bulk material conveyors.
• Large feeders.
• Industrial transport systems.
• Processing equipment.
• Material transfer systems.
• Large lifting-related machinery, subject to application-specific drive selection.

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12.8 Industrial Process Lines

The drive can also be used as part of large automated production lines.

Typical industries may include:

• Metals processing.
• Paper production.
• Mining.
• Cement production.
• Water treatment.
• Chemical processing.
• General manufacturing.
• Bulk material processing.

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13. Major Product Advantages

13.1 High 250 kW Normal Duty Capacity

The most obvious advantage is its high power capacity.

At 263 A Normal Duty and 250 kW, the drive is designed for large industrial motors.

This makes it suitable for applications where compact drives are no longer practical.

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13.2 200 kW Heavy Duty Capability

The 200 kW Heavy Duty rating provides useful capacity for demanding machinery.

This makes the drive more versatile than a drive selected only for a low-overload continuous-duty application.

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13.3 690 VAC Operation

The 690 VAC rating is well suited to large industrial motor systems.

At high power levels, higher-voltage motor systems can reduce current requirements compared with equivalent lower-voltage systems.

This can influence cable sizing, switchgear selection, busbar design, and transformer arrangements.

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13.4 Integrated Dynamic Braking Transistor

The JA0 configuration includes the dynamic braking transistor.

This is a significant advantage when the machine requires controlled deceleration.

The system can be paired with a properly selected external braking resistor to manage regenerative energy.

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13.5 Embedded Ethernet/IP

Embedded Ethernet/IP provides a convenient connection between the drive and the industrial automation system.

The drive can become part of the plant control architecture rather than operating as a completely independent device.

Possible functions include:

• Run commands.
• Speed reference.
• Status feedback.
• Current monitoring.
• Fault monitoring.
• Warning monitoring.
• Diagnostic information.
• Process-related drive data.

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13.6 Forced-Air Cooling

Forced-air cooling is appropriate for a high-power drive of this size.

It allows the drive to handle substantial electrical power while maintaining a manageable thermal design.

The cooling system nevertheless depends on adequate cabinet ventilation and suitable ambient conditions.

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13.7 Filtered Configuration

The filtered configuration is useful for installations where electromagnetic compatibility is an important part of the system design.

The installed CM jumper also reflects the configured common-mode arrangement.

Correct grounding and motor-cable practices remain important even with filtering provisions.

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13.8 No HIM Configuration

The blank/no-HIM arrangement is useful when the machine is controlled remotely.

Many industrial systems use a PLC and remote HMI instead of requiring an operator keypad directly on every drive.

This can make the control architecture more centralized.

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14. Advantages for System Integrators

The PowerFlex 755 architecture gives system integrators a standardized platform for large motor-control applications.

The same general family can cover multiple motor sizes, allowing an engineering team to use familiar programming, commissioning, networking, and diagnostic concepts.

For a large facility, this can reduce the variety of drive platforms that maintenance personnel need to understand.

The embedded Ethernet/IP capability also makes the drive easier to incorporate into a networked automation system.

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15. Advantages for Machine Builders

Machine builders can use the 263 A PowerFlex 755 when a machine requires substantial motor power.

The JA0 configuration is especially useful when braking needs are known during the original machine design.

The absence of a factory-installed HIM also allows the machine builder to create a remote operator interface.

This is useful for large machines where the drive cabinet may be physically separated from the operator station.

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16. Advantages for End Users

For end users, the primary benefits are controlled motor speed, improved process flexibility, communication, diagnostics, and system standardization.

A properly sized variable-frequency drive can allow the motor to operate at the speed actually required by the process.

This can improve process control and, in suitable applications, reduce unnecessary energy consumption.

The network interface can also provide maintenance personnel with useful drive status and diagnostic information.

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17. Recommended Same-Series Models

The following models are useful alternatives within the same 690 VAC PowerFlex 755 family.

Model / Part Number	Voltage	Normal Duty	Heavy Duty	Frame	Braking	Dimensions	Weight
20G14NF142JA0NNNNN	690 VAC, 3 PH	142 A / 132 kW	119 A / 110 kW	6	DB Transistor	308 × 665.5 × 346.4 mm	Approx. 38.6 kg
20G14NF171JA0NNNNN	690 VAC, 3 PH	171 A / 160 kW	142 A / 132 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF212JA0NNNNN	690 VAC, 3 PH	212 A / 200 kW	171 A / 160 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF263JN0NNNNN	690 VAC, 3 PH	263 A / 250 kW	212 A / 200 kW	7	None	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF212JN0NNNNN	690 VAC, 3 PH	212 A / 200 kW	171 A / 160 kW	7	None	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg

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18. Five Closely Related PowerFlex 755 Models

For replacement planning and drive-family standardization, the following models are especially relevant.

Model / Part Number	Normal Duty	Heavy Duty	Frame	Dynamic Braking	Dimensions	Weight
20G14NF171JA0NNNNN	171 A / 160 kW	142 A / 132 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF212JA0NNNNN	212 A / 200 kW	171 A / 160 kW	7	DB Transistor	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF212JN0NNNNN	212 A / 200 kW	171 A / 160 kW	7	None	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF263JN0NNNNN	263 A / 250 kW	212 A / 200 kW	7	None	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF142JA0NNNNN	142 A / 132 kW	119 A / 110 kW	6	DB Transistor	308 × 665.5 × 346.4 mm	Approx. 38.6 kg

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19. Recommended Higher and Lower Power Models

The PowerFlex 755 690 VAC range provides a useful progression around the 263 A model.

The 171 A version is appropriate when the required Normal Duty rating is approximately 160 kW.

The 212 A version moves into the 200 kW Normal Duty range.

The 263 A version increases capacity to approximately 250 kW Normal Duty.

This makes the 263 A model useful when a 212 A drive does not provide enough current capacity.

Model / Part Number	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame	Dimensions	Weight
20G14NF171JA0NNNNN	171 A	160 kW	142 A	132 kW	7	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF212JA0NNNNN	212 A	200 kW	171 A	160 kW	7	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF263JA0NNNNN	263 A	250 kW	212 A	200 kW	7	430 × 881.5 × 349.6 mm	72.6–108.9 kg

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20. Five Popular Models From the Same Brand

The following products represent other commonly used models from the same brand.

They are not direct replacements for the 20G14NF263JA0NNNNN because their voltage classes, power levels, and physical configurations are different.

Model / Part Number	Series	Typical Voltage Class	Current Class	Approx. Power Class	Product Type	Dimensions	Weight
25B-D017N114	PowerFlex 525	480 VAC class	17 A	Approx. 7.5 kW class	Compact AC Drive	Configuration dependent	Configuration dependent
25B-D024N114	PowerFlex 525	480 VAC class	24 A	Approx. 11 kW class	Compact AC Drive	Configuration dependent	Configuration dependent
25B-D030N114	PowerFlex 525	480 VAC class	30 A	Approx. 15 kW class	Compact AC Drive	Configuration dependent	Configuration dependent
20G11NC5P0JA0NNNNN	PowerFlex 755	480 VAC class	50 A class	Approx. 37–45 kW class	Air-Cooled AC Drive	Configuration dependent	Configuration dependent
20G11NC072JA0NNNNN	PowerFlex 755	480 VAC class	72 A class	Approx. 55 kW class	Air-Cooled AC Drive	Configuration dependent	Configuration dependent

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21. Popular Model Comparison

The smaller PowerFlex 525 models are aimed at compact machine applications.

They are considerably smaller in power capacity than the 263 A PowerFlex 755.

The 20G11-series models are closer in architecture because they belong to the PowerFlex 755 family, although they use a different voltage class and much lower current range.

Therefore, they should be regarded as related products rather than direct replacements.

Model / Part Number	Primary Use	Relative Power	Voltage Class	Drive Family	Dimensions	Weight
25B-D017N114	Small/medium machinery	Low	480 VAC class	PowerFlex 525	Configuration dependent	Configuration dependent
25B-D024N114	Small/medium machinery	Low to medium	480 VAC class	PowerFlex 525	Configuration dependent	Configuration dependent
25B-D030N114	Medium machinery	Medium	480 VAC class	PowerFlex 525	Configuration dependent	Configuration dependent
20G11NC5P0JA0NNNNN	Industrial motor control	Medium	480 VAC class	PowerFlex 755	Configuration dependent	Configuration dependent
20G11NC072JA0NNNNN	Industrial motor control	Medium	480 VAC class	PowerFlex 755	Configuration dependent	Configuration dependent
20G14NF263JA0NNNNN	High-power industrial motor control	Very High	690 VAC	PowerFlex 755	430 × 881.5 × 349.6 mm	72.6–108.9 kg

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22. Catalog Number Breakdown

The catalog number 20G14NF263JA0NNNNN contains useful configuration information.

The 20G section identifies the PowerFlex 755 family.

The 14 section identifies the DC-input-with-precharge configuration.

The NF section identifies the 690 VAC configuration family.

The 263 section corresponds to the 263 A Normal Duty rating.

The J section identifies the filtered / CM jumper configuration.

The A section identifies the dynamic braking transistor configuration.

The 0 section indicates the blank/no-HIM configuration.

The remaining N positions indicate that additional options are not selected in those positions.

Catalog Number Section	General Meaning
20G	PowerFlex 755 family
14	DC Input with Precharge
NF	690 VAC configuration
263	263 A Normal Duty
J	Filtered / CM Jumper Installed
A	Dynamic Braking Transistor
0	Blank / No HIM
NNNNN	No additional selected options in those positions

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23. Cabinet Installation

The Frame 7 size requires careful cabinet planning.

The drive dimensions are approximately 430 × 881.5 × 349.6 mm, but the cabinet should be larger than the drive itself.

Space is required for incoming power connections, motor output cables, control wiring, communication cables, grounding, ventilation, and maintenance access.

The drive’s weight of approximately 72.6–108.9 kg should also be considered when designing the cabinet mounting structure.

Mechanical lifting provisions may be appropriate during installation.

Cabinet Parameter	Recommended Consideration
Model / Part Number	20G14NF263JA0NNNNN
Frame	Frame 7
Drive Width	Approx. 430 mm
Drive Height	Approx. 881.5 mm
Drive Depth	Approx. 349.6 mm
Drive Weight	Approx. 72.6–108.9 kg
Cooling	Forced Air
Cabinet Ventilation	Required
Motor Cable Space	Allow adequate termination and bending room
Control Wiring	Keep appropriately separated from power wiring
Network Wiring	Route to reduce electrical interference
Grounding	Proper industrial grounding required
Service Access	Maintain adequate maintenance space
Lifting	Plan for safe handling

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24. Thermal Management

A 250 kW-class drive can produce significant heat during normal operation.

The cabinet therefore needs an appropriate thermal management strategy.

The forced-air cooling system depends on adequate airflow through the drive and sufficient removal of heat from the enclosure.

Poor cabinet ventilation can increase internal temperature and reduce operating reliability.

For installations in hot environments, the actual application conditions should be evaluated carefully.

Thermal Parameter	Consideration
Model / Part Number	20G14NF263JA0NNNNN
Power Class	250 kW Normal Duty
Cooling	Forced Air
Frame	7
Cabinet Ventilation	Required
Ambient Temperature	Approximately 0–50 °C typical range
Heat Removal	Must be planned during cabinet design
Cabinet Filters	Maintain regularly where used
Fan Maintenance	Include in preventive maintenance
High Temperature	Check applicable derating

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25. Motor Selection Considerations

The motor should be checked carefully before pairing it with this drive.

The following information is particularly important:

• Motor rated voltage.
• Motor full-load current.
• Motor rated power.
• Motor frequency.
• Motor speed.
• Motor power factor.
• Motor efficiency.
• Starting torque.
• Required acceleration time.
• Required deceleration time.
• Maximum operating speed.
• Load inertia.
• Overload requirements.
• Braking requirements.

The drive’s 263 A Normal Duty rating should be compared directly with the actual motor current.

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26. Dynamic Braking Application Considerations

The JA0 version is a good choice when the machine requires controlled braking.

However, the presence of the DB transistor does not eliminate the need for proper braking-system engineering.

The external braking resistor must be selected according to the amount of regenerative energy and how often the machine brakes.

For a machine that brakes once every several minutes, the resistor duty may be very different from a machine that accelerates and stops every few seconds.

The braking system should therefore be designed around the actual machine cycle.

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27. Maintenance Recommendations

The cooling system should be included in regular preventive maintenance.

Fans should be inspected for abnormal noise, reduced airflow, contamination, or other signs of deterioration.

Cabinet ventilation should also be checked.

Dust buildup around ventilation paths can reduce heat transfer and increase operating temperature.

High-power electrical connections should be inspected as part of an appropriate maintenance program.

Communication connections should also be checked if the drive is integrated into a networked control system.

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28. Replacement Considerations

When replacing an existing drive with 20G14NF263JA0NNNNN, the replacement process should not be based solely on current and kW ratings.

The following should also be compared:

• Input configuration.
• Voltage class.
• Frame size.
• Dynamic braking configuration.
• Filtering.
• CM jumper configuration.
• HIM configuration.
• Network requirements.
• Cabinet dimensions.
• Motor cable connections.
• Control architecture.

A 263 A drive with a different input configuration may not be a direct replacement even if its nominal power rating is similar.

Likewise, changing from JA0 to JN0 can affect the braking system.

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29. Application Selection Guide

Application	Suitability	Main Consideration
Large centrifugal pump	Excellent	Check motor current and Normal Duty rating
Large fan	Excellent	Verify airflow and process speed requirements
Industrial blower	Excellent	Check continuous load
Large compressor	Very Good	Review acceleration and operating cycle
Large conveyor	Very Good	Evaluate Heavy Duty rating and braking
Mixer	Very Good	Check starting torque
Centrifuge	Very Good	Review regenerative energy
Bulk material handling	Very Good	Evaluate acceleration/deceleration
Process line	Excellent	Network and PLC integration
High-inertia machinery	Very Good	Dynamic braking design is important
Rapid-cycle machinery	Application dependent	Review braking duty carefully
Small machine	Usually oversized	Smaller drive may be more economical

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30. Five Same-Series Models for Practical Selection

Model / Part Number	ND Current	ND Power	HD Current	HD Power	Braking	Frame	Dimensions	Weight
20G14NF119JA0NNNNN	119 A	110 kW	98 A	90 kW	DB Transistor	6	308 × 665.5 × 346.4 mm	Approx. 38.6 kg
20G14NF142JA0NNNNN	142 A	132 kW	119 A	110 kW	DB Transistor	6	308 × 665.5 × 346.4 mm	Approx. 38.6 kg
20G14NF171JA0NNNNN	171 A	160 kW	142 A	132 kW	DB Transistor	7	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF212JA0NNNNN	212 A	200 kW	171 A	160 kW	DB Transistor	7	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg
20G14NF263JA0NNNNN	263 A	250 kW	212 A	200 kW	DB Transistor	7	430 × 881.5 × 349.6 mm	Approx. 72.6–108.9 kg

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31. Same-Rating Braking Comparison

For a 263 A application, the JA0 and JN0 configurations are the most direct comparison.

Parameter	20G14NF263JA0NNNNN	20G14NF263JN0NNNNN
Normal Duty Current	263 A	263 A
Normal Duty Power	250 kW	250 kW
Heavy Duty Current	212 A	212 A
Heavy Duty Power	200 kW	200 kW
Voltage	690 VAC	690 VAC
Input	DC Input with Precharge	DC Input with Precharge
Frame	7	7
Cooling	Forced Air	Forced Air
Dynamic Braking Transistor	Included	Not Included
Internal Braking Resistor	No	No
Filtering	Yes	Yes
CM Jumper	Installed	Installed
HIM	Blank / No HIM	Blank / No HIM
Dimensions	430 × 881.5 × 349.6 mm	430 × 881.5 × 349.6 mm
Weight	72.6–108.9 kg	72.6–108.9 kg
Best Use	Applications needing DB capability	Applications without internal DB requirement

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32. Why Choose 20G14NF263JA0NNNNN?

The model is particularly attractive when the project has the following requirements:

• 690 VAC motor system.
• Three-phase operation.
• Up to approximately 250 kW Normal Duty.
• Up to approximately 200 kW Heavy Duty.
• High-power industrial motor control.
• Frame 7 cabinet installation.
• Forced-air cooling.
• Embedded Ethernet/IP.
• Filtered configuration.
• CM jumper installed.
• Dynamic braking transistor.
• No local HIM required.
• PowerFlex 755 platform standardization.

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33. Main Advantages at a Glance

Advantage	Practical Benefit
263 A Normal Duty	Supports large motor applications
250 kW Normal Duty	High-power industrial capability
212 A Heavy Duty	Suitable for demanding loads
200 kW Heavy Duty	Useful for high-torque applications
690 VAC	Suitable for high-voltage motor systems
Frame 7	Designed for high-power applications
Forced Air	Supports high-power thermal management
Embedded Ethernet/IP	Easy integration into automation networks
DB Transistor	Supports engineered dynamic braking systems
Filtered	Useful for EMC-conscious installations
CM Jumper Installed	Configured common-mode arrangement
No HIM	Suitable for remote HMI/PLC-controlled systems
PowerFlex 755	Consistent industrial drive platform

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34. Final Technical Specification Table

Category	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Model / Part Number	20G14NF263JA0NNNNN
Product Type	Air-Cooled AC Drive
Voltage	690 VAC
Phase	3 Phase
Input	DC Input with Precharge
Normal Duty Current	263 A
Normal Duty Power	250 kW
Heavy Duty Current	212 A
Heavy Duty Power	200 kW
Cooling	Forced Air
Frame	Frame 7
Enclosure	Open Type
Dynamic Braking	DB Transistor
DB Transistor	Included
Internal Braking Resistor	Not Included
Filtering	Filtered
CM Jumper	Installed
HIM	Blank / No HIM
Network	Embedded Ethernet/IP
Approx. Width	430 mm
Approx. Height	881.5 mm
Approx. Depth	349.6 mm
Approx. Dimensions	430 × 881.5 × 349.6 mm
Approx. Weight	72.6–108.9 kg
Typical Operating Temperature	Approx. 0–50 °C
Relative Humidity	Approx. 5–95%, non-condensing
Storage Temperature	Approx. -40 to +70 °C
Installation	Industrial Cabinet / Panel
Main Application	High-Power Industrial Motor Control

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35. Final Product Assessment

The Allen-Bradley 20G14NF263JA0NNNNN is a high-power PowerFlex 755 drive intended for serious industrial motor-control applications.

Its 263 A / 250 kW Normal Duty rating and 212 A / 200 kW Heavy Duty rating make it suitable for large motors and large process equipment.

The 690 VAC three-phase configuration makes it especially appropriate for high-power motor systems using a 690 VAC electrical architecture.

The Frame 7 design, forced-air cooling, filtered configuration, embedded Ethernet/IP, and open-type construction are all consistent with large industrial cabinet installations. The product configuration also includes a dynamic braking transistor, which gives the system designer the option of implementing an appropriately engineered external braking-resistor system.

The most important distinction when comparing this model with the JN0 version is the braking configuration.

The 20G14NF263JA0NNNNN includes the internal DB transistor, while 20G14NF263JN0NNNNN does not.

For a machine with significant regenerative energy or frequent rapid deceleration, this difference can be decisive.

For a machine with conventional acceleration and deceleration and no need for internal dynamic braking, the JN0 version may be the more appropriate configuration.

From a system-design perspective, the 20G14NF263JA0NNNNN is best suited to large pumps, fans, blowers, compressors, conveyors, mixers, centrifuges, material-handling systems, and high-power process machinery.

Its combination of high current capacity, 690 VAC operation, PowerFlex 755 architecture, Ethernet/IP integration, and dynamic braking capability makes it a strong choice for large automated industrial systems.

For applications around 160 kW Normal Duty, the 171 A model is a sensible lower-capacity alternative.

For approximately 200 kW Normal Duty, the 212 A model provides the next step.

For approximately 250 kW Normal Duty, the 20G14NF263JA0NNNNN is the appropriate higher-capacity choice in this group.

When selecting the final drive for a real installation, the motor nameplate current, load profile, overload requirement, acceleration/deceleration requirements, braking energy, cabinet cooling, environmental conditions, and communication architecture should all be checked together rather than selecting the drive from the motor kW value alone.