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Allen-Bradley 20G1AGF098JA0NNNNN PowerFlex 755 AC Drive
1. Product Overview
The Allen-Bradley 20G1AGF098JA0NNNNN is a high-power industrial AC variable frequency drive from the PowerFlex 755 series.
This model is designed for demanding three-phase motor-control applications operating on a 690 VAC power system. It provides a rated output current of 98 A, with a 90 kW Normal Duty (ND) rating and a 75 kW Heavy Duty (HD) rating.
The drive uses a Frame 6 configuration, forced-air cooling, and a Type 12 / IP54 enclosure. It is configured with an AC input including precharge, no DC terminals, input filtering, a CM jumper installed, and an integrated dynamic-braking transistor.
The model also incorporates embedded EtherNet/IP communication and is supplied in a blank/no-HIM configuration, making it particularly suitable for installations where the drive is controlled from a PLC, HMI, SCADA system, or centralized automation network rather than from a local keypad.
The JA0 configuration is especially important because it includes a dynamic-braking transistor. This makes the drive a practical choice for applications involving high-inertia loads, controlled deceleration, frequent stopping, or other situations where regenerated motor energy needs to be managed.
The 20G1AGF098JA0NNNNN therefore combines a relatively high motor-power rating, 690 VAC operation, protected industrial packaging, network connectivity, and dynamic-braking capability in a single PowerFlex 755 configuration.
2. Brand and Series
| Item | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 755 |
| Product Type | Industrial AC Variable Frequency Drive |
| Catalog Number | 20G1AGF098JA0NNNNN |
| Drive Configuration | AC Packaged Drive |
| Voltage Class | 690 VAC |
| Input Phase | 3-Phase |
| Rated Current | 98 A |
| Normal Duty Rating | 90 kW |
| Heavy Duty Rating | 75 kW |
| Frame | Frame 6 |
| Cooling | Forced Air |
| Enclosure | Type 12 / IP54 |
| Dynamic Braking | DB Transistor |
| Communication | Embedded EtherNet/IP |
| HIM Configuration | Blank / No HIM |
| Input Configuration | AC Input with Precharge |
| DC Terminals | No |
| Filtering | Filtered |
| CM Jumper | Installed |
| Intended Use | Industrial motor speed and torque control |
The model belongs to the PowerFlex 755 family and is specifically configured for 690 VAC, 3-phase operation at 98 A, with 90 kW ND and 75 kW HD ratings.
3. Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model / Catalog Number | 20G1AGF098JA0NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Product Type | AC Variable Frequency Drive |
| Configuration | AC Packaged Drive |
| Rated Voltage | 690 VAC |
| Supply | 3-Phase AC |
| Rated Output Current | 98 A |
| Normal Duty Power | 90 kW |
| Heavy Duty Power | 75 kW |
| Frame Size | Frame 6 |
| Cooling Method | Forced Air |
| Enclosure | Type 12 / IP54 |
| Input Type | AC Input with Precharge |
| DC Terminals | None |
| Input Filtering | Filtered |
| CM Jumper | Installed |
| Dynamic Braking | DB Transistor |
| Human Interface Module | Blank / No HIM |
| Communication | Embedded EtherNet/IP |
| Typical Motor Class | Approximately 90 kW ND |
| Approx. Width | 300–400 mm |
| Approx. Height | 600–800 mm |
| Approx. Depth | 300–400 mm |
| Approx. Weight | 55–75 kg |
| Installation | Industrial panel / packaged enclosure |
| Cooling Airflow | Forced Air |
| Application | Large industrial AC motors |
The electrical configuration of this model is centered around 690 VAC, 98 A, 90 kW ND, 75 kW HD, Frame 6, Type 12/IP54, and dynamic-braking transistor capability.
The dimensions and weight above are engineering planning estimates, not a substitute for the exact mechanical drawing of the specific packaged configuration. For cabinet fabrication, shipping calculations, lifting arrangements, and mounting-hole layouts, the exact dimensional drawing should always be used.
4. Product Identification
The catalog number 20G1AGF098JA0NNNNN identifies a specific PowerFlex 755 configuration rather than simply identifying a generic 755 drive.
Several parts of the catalog number are useful when comparing similar products.
The 20G1 prefix places the product within the PowerFlex 755 family.
The F voltage designation corresponds to the 690 VAC class.
The 098 identifies the 98 A current class.
The JA0 configuration identifies the version incorporating a dynamic-braking transistor.
The remaining characters define the specific option and configuration structure of the catalog number.
This is why two PowerFlex 755 drives with similar power ratings should not automatically be considered interchangeable.
5. 690 VAC Three-Phase Operation
One of the defining characteristics of the 20G1AGF098JA0NNNNN is its 690 VAC three-phase voltage class.
690 VAC motor systems are widely used in higher-power industrial installations where motors and power-distribution systems are designed around this voltage level.
At the same power level, operating at a higher voltage generally allows the motor current to remain lower than would be required at a substantially lower voltage.
For a large industrial facility, this can be advantageous for:
- Motor feeder design
- Switchgear selection
- Cable sizing
- Power-distribution architecture
- Large motor installations
- Long motor-feeder arrangements
The voltage class must nevertheless match the motor and facility electrical system.
A 480 VAC PowerFlex 755, a 600 VAC PowerFlex 755, and a 690 VAC PowerFlex 755 may have similar mechanical characteristics but are not automatically electrically interchangeable.
6. 98 A Rated Current
The 98 A output-current rating is a key sizing parameter.
For a VFD, the current rating is often more important than the motor horsepower printed on the motor nameplate.
The actual motor application should be evaluated using:
- Motor full-load current
- Motor voltage
- Motor frequency
- Motor power
- Motor torque
- Starting requirements
- Acceleration requirements
- Deceleration requirements
- Overload requirements
- Duty cycle
The 98 A rating places this model in the higher-power range of the 690 VAC PowerFlex 755 configurations.
It is therefore intended for substantial industrial motors rather than small general-purpose machines.
7. 90 kW Normal Duty Rating
The drive provides a 90 kW Normal Duty rating.
Normal Duty operation is generally suitable for applications where the motor operates under a comparatively moderate overload profile and where the machine does not continuously demand the higher overload conditions associated with Heavy Duty operation.
Typical examples include:
- Large centrifugal pumps
- Industrial fans
- Blowers
- Cooling systems
- Continuous conveyors
- Process pumps
- Air-handling equipment
The 90 kW rating gives the model enough capacity for many large industrial process applications while maintaining a relatively compact Frame 6 configuration.
8. 75 kW Heavy Duty Rating
The 75 kW Heavy Duty rating provides a lower power level than the Normal Duty rating because Heavy Duty applications impose more demanding thermal and overload conditions.
Heavy Duty operation can be relevant to machines that experience:
- High starting torque
- Rapid acceleration
- Repeated acceleration
- High mechanical inertia
- Frequent stopping
- Large transient loads
- Significant torque variation
Potential applications include:
- Conveyors
- Mixers
- Crushers
- Material-handling equipment
- Extrusion equipment
- High-inertia machinery
- Processing machinery
When the machine has a demanding load profile, the Heavy Duty rating should be used for sizing rather than relying only on the Normal Duty rating.
9. Normal Duty vs. Heavy Duty
| Rating Type | Power Rating | Typical Operating Characteristic |
|---|---|---|
| Normal Duty | 90 kW | Moderate overload requirements |
| Heavy Duty | 75 kW | Higher overload and demanding torque conditions |
This distinction is important when selecting a drive.
For example, a 90 kW motor driving a centrifugal fan may be appropriate for the Normal Duty rating, while a mechanically demanding application with high torque and frequent acceleration may require evaluation against the Heavy Duty rating.
The final selection should always be based on the actual motor current and load profile.
10. Frame 6 Construction
The model uses Frame 6 construction.
Frame size determines the physical and thermal architecture of the drive.
It influences:
- Cabinet space
- Mounting arrangement
- Cooling
- Power connections
- Service access
- Cable routing
- Internal power-device arrangement
- Mechanical clearance
Frame 6 provides a practical balance between power capability and physical size for this class of 690 VAC drive.
For replacement applications, frame compatibility should be verified rather than assuming that a drive with the same current rating will have the same mechanical dimensions.
11. Forced-Air Cooling
The 20G1AGF098JA0NNNNN uses forced-air cooling.
High-power semiconductor devices generate heat during normal operation.
Heat comes from:
- Switching losses
- Semiconductor conduction losses
- DC bus losses
- Internal control electronics
- Auxiliary circuits
Forced-air cooling transfers this heat away from the power components.
For reliable operation, the installation should provide adequate airflow.
Important factors include:
- Ambient temperature
- Airflow direction
- Cabinet ventilation
- Cooling-fan condition
- Air-passage cleanliness
- Installation clearance
- Cabinet heat dissipation
A high-power drive should not be installed in a sealed or poorly ventilated enclosure without a proper thermal calculation.
12. Type 12 / IP54 Protection
The drive uses a Type 12 / IP54 packaged enclosure.
This is a significant practical advantage compared with an open-type configuration.
The enclosure provides protection suitable for many industrial environments involving:
- Dust
- Dirt
- Airborne contamination
- Industrial process environments
- Incidental water exposure
However, an IP54 enclosure does not mean that the drive can be installed in any environment without additional consideration.
Special attention is still required where there is:
- High humidity
- Condensation
- Corrosive gas
- Conductive dust
- Extreme temperature
- Excessive vibration
- Chemical contamination
Environmental conditions should be evaluated during the machine-design stage.
13. AC Input with Precharge
The 20G1AGF098JA0NNNNN uses AC input with precharge and no DC terminals.
The precharge system manages the initial charging of the DC-bus capacitors when power is applied.
This helps limit the initial charging current and provides controlled energization of the DC bus.
The absence of DC terminals also means that this catalog configuration should not be treated as a drive designed for conventional external DC-bus connection.
This characteristic is important when comparing different PowerFlex 755 configurations.
14. Dynamic Braking and the JA0 Configuration
The JA0 configuration includes a dynamic-braking transistor.
This is one of the most important features of the 20G1AGF098JA0NNNNN.
When an AC motor decelerates, especially when driving a high-inertia load, the motor can operate temporarily as a generator.
Energy can flow back into the drive’s DC bus.
This regenerative energy can cause the DC-bus voltage to increase.
The dynamic-braking transistor provides a switching path for dissipating this energy through an appropriately selected braking resistor.
This makes the model particularly attractive for applications where controlled deceleration is important.
15. Dynamic-Braking Applications
Dynamic braking can be useful in:
- Conveyors
- High-inertia fans
- Centrifuges
- Hoisting-related machinery
- Material-handling systems
- Mixers
- Large rotating machinery
- Process equipment
- Machines with frequent stopping
The braking resistor must be selected according to:
- Motor power
- Motor speed
- Load inertia
- Deceleration time
- Number of braking cycles
- Braking energy
- Resistor duty cycle
- Ambient temperature
The integrated DB transistor does not mean that the external braking resistor is automatically included.
The resistor and its thermal arrangement must be engineered separately.
16. Dynamic Braking Advantages
Faster Controlled Deceleration
Dynamic braking can help achieve a shorter and more predictable stopping time when the application requires it.
High-Inertia Load Control
It is particularly useful for loads with substantial rotating inertia.
Reduced Mechanical Stress
Controlled deceleration can reduce sudden mechanical shocks compared with uncontrolled stopping.
Repeatable Stopping
Applications with repeated acceleration and deceleration can benefit from properly designed braking.
Better Process Control
A controlled stopping profile can be important for manufacturing equipment and material-handling machinery.
17. Embedded EtherNet/IP
The 20G1AGF098JA0NNNNN includes embedded EtherNet/IP.
This provides a practical communication path between the drive and an industrial automation system.
A typical arrangement can be represented as:
PLC → EtherNet/IP → PowerFlex 755 → AC Motor → Mechanical Load
The control system can exchange information such as:
- Start command
- Stop command
- Direction
- Speed reference
- Output frequency
- Motor current
- Drive status
- Fault status
- Alarm information
- Diagnostic information
This is particularly useful for centralized plant control.
18. Blank / No HIM Configuration
The catalog configuration specifies Blank / No HIM.
HIM means Human Interface Module.
A no-HIM configuration is suitable for installations where local keypad operation is not required.
Instead, the drive can be controlled through:
- PLC
- HMI
- SCADA
- EtherNet/IP
- Remote operator station
- Central control system
This approach is common in large industrial systems where multiple drives are controlled from a centralized automation platform.
It can also reduce unnecessary local operator hardware when the machine is already equipped with a dedicated control interface.
19. Filtering
The model is specified as filtered.
Input filtering can help manage high-frequency electrical effects associated with power conversion and switching.
In a large industrial installation, electrical noise can potentially affect:
- Control wiring
- Sensors
- Encoders
- Communication networks
- Analog signals
- Other electronic equipment
Correct grounding and cable installation remain essential.
Filtering should therefore be considered as one part of the overall electromagnetic-compatibility design rather than as a substitute for correct wiring practices.
20. CM Jumper Installed
The model is configured with the CM jumper installed.
The common-mode configuration is relevant to the drive’s grounding and electrical-noise characteristics.
When installing the drive, the CM-jumper configuration should be considered together with:
- Grounding method
- Power-distribution system
- Motor cable construction
- Shielding
- EMC requirements
- Existing plant electrical architecture
Changing this arrangement without reviewing the complete electrical system is not recommended.
21. Product Applications
21.1 Large Industrial Pumps
Large pumps are one of the most suitable applications for a 90 kW-class 690 VAC drive.
Potential applications include:
- Process-water pumps
- Cooling-water pumps
- Transfer pumps
- Industrial circulation systems
- Water-treatment systems
- Chemical-process pumps
- Utility pumping systems
Variable-speed control allows the pump to operate according to actual process demand.
21.2 Large Fans
Large fans can have considerable inertia and often operate for long periods.
The drive can provide:
- Controlled starting
- Adjustable operating speed
- Controlled acceleration
- Controlled deceleration
- Remote control
- Network monitoring
Typical applications include:
- Industrial ventilation
- Furnace systems
- Exhaust systems
- Cooling systems
- Dust collection
- Process ventilation
21.3 Industrial Blowers
Blowers are frequently used in process industries.
Applications can include:
- Combustion air
- Process air
- Dust extraction
- Pneumatic conveying
- Industrial ventilation
- Cooling
Speed adjustment allows the blower output to follow changing process requirements.
21.4 Conveyor Systems
Conveyor systems can benefit significantly from variable-speed operation.
The drive can provide smooth acceleration, which helps reduce mechanical shock.
It can also provide controlled deceleration.
This is particularly useful for:
- Bulk-material conveyors
- Mining conveyors
- Manufacturing lines
- Packaging lines
- Transfer conveyors
- Processing systems
The dynamic-braking transistor provides additional flexibility where controlled stopping is required.
21.5 Material Handling
Large material-handling systems can require precise speed control.
Potential equipment includes:
- Feeders
- Transfer equipment
- Conveyors
- Bulk-material systems
- Processing machinery
The PowerFlex 755 architecture allows the drive to be integrated into a broader automation system.
21.6 Mining and Mineral Processing
690 VAC motor systems are common in high-power industrial environments.
Potential applications include:
- Conveyors
- Pumps
- Fans
- Crushers
- Feeders
- Process machinery
The drive’s high voltage class and 90 kW Normal Duty rating make it appropriate for many medium-to-large motor applications in this sector.
21.7 Cement and Aggregate Equipment
Cement and aggregate plants often operate heavy rotating machinery.
Potential applications include:
- Fans
- Pumps
- Conveyors
- Feeders
- Material-handling equipment
- Process machinery
The dynamic-braking capability can be valuable where high-inertia loads need controlled stopping.
21.8 Manufacturing Machinery
The drive can be integrated into automated manufacturing equipment requiring variable motor speed.
Possible applications include:
- Mixers
- Process machines
- Large machine tools
- Production lines
- Material-processing equipment
- Industrial machinery
22. Advantages of the 20G1AGF098JA0NNNNN
High-Power 690 VAC Design
The 690 VAC class makes this drive suitable for higher-power industrial motor systems.
98 A Current Capacity
The 98 A output rating provides substantial motor-control capability for industrial equipment.
90 kW Normal Duty
The 90 kW ND rating supports a broad range of industrial pump, fan, blower and conveyor applications.
75 kW Heavy Duty
The 75 kW HD rating gives the drive useful overload capability for more demanding machinery.
Dynamic-Braking Transistor
The JA0 configuration provides an integrated dynamic-braking transistor, which is particularly valuable for high-inertia loads.
Type 12 / IP54 Packaging
The enclosure provides a practical level of environmental protection for industrial installations.
Embedded EtherNet/IP
Network integration simplifies connection to modern industrial automation systems.
No-HIM Configuration
The blank/no-HIM arrangement works well in centralized-control architectures.
Forced-Air Cooling
The cooling system is designed for the thermal demands associated with this power class.
PowerFlex 755 Platform
The PowerFlex 755 platform provides a broad range of drive configurations, allowing users to select different voltage classes, current ratings, enclosure styles, braking options and control configurations.
23. Mechanical Dimensions and Weight
For preliminary engineering purposes, the 20G1AGF098JA0NNNNN can be considered a relatively compact Frame 6 packaged drive compared with larger Frame 7 and Frame 8 configurations.
The following values are suitable for preliminary equipment planning only.
| Mechanical Parameter | Engineering Estimate |
|---|---|
| Frame | Frame 6 |
| Width | Approx. 300–400 mm |
| Height | Approx. 600–800 mm |
| Depth | Approx. 300–400 mm |
| Weight | Approx. 55–75 kg |
| Enclosure | Type 12 / IP54 |
| Cooling | Forced Air |
| Mounting Orientation | Typically Vertical |
| Service Clearance | Required around cooling and cable-access areas |
The exact physical dimensions can vary with packaging and configuration.
For final cabinet design, the exact mechanical drawing should be used.
For shipping and lifting calculations, the actual unit weight shown on the equipment documentation or shipping record should be used rather than the engineering estimate above.
24. Installation Requirements
A 98 A, 690 VAC industrial drive should be installed as part of a properly engineered power and control system.
Important considerations include:
Power Supply
The incoming supply must be suitable for the drive’s voltage class and three-phase configuration.
Protection
The upstream protective equipment must be selected according to the applicable electrical installation requirements.
Grounding
Correct grounding is essential for both safety and electromagnetic compatibility.
Motor Cable
Motor cable selection should consider:
- Current
- Voltage
- Cable length
- Insulation
- Shielding
- Installation environment
Cabinet
The cabinet must accommodate:
- Drive dimensions
- Cable bending radius
- Airflow
- Service access
- Heat dissipation
- Protective equipment
25. Motor Selection
The motor should be selected based on actual current and torque requirements rather than horsepower alone.
| Motor Parameter | Selection Requirement |
|---|---|
| Motor Voltage | Compatible with drive output |
| Motor Current | Within applicable drive rating |
| Motor Power | Within ND or HD rating |
| Motor Frequency | Compatible with control requirements |
| Motor Speed | Suitable for required speed range |
| Starting Torque | Evaluate for machine requirements |
| Continuous Torque | Check against actual load |
| Load Inertia | Important for acceleration and braking |
| Deceleration | Important because DB transistor is provided |
| Duty Cycle | Important for thermal sizing |
| Motor Insulation | Suitable for inverter operation |
| Cable Length | Evaluate for drive application |
26. Dynamic-Braking Resistor Considerations
Because this model includes a dynamic-braking transistor, the braking resistor should be designed around the machine’s actual operating cycle.
The following information should be determined:
- Motor power.
- Motor rated speed.
- Maximum operating speed.
- Load inertia.
- Required stopping time.
- Number of stops per hour.
- Maximum braking frequency.
- Braking energy per stop.
- Ambient temperature.
- Resistor thermal capacity.
A resistor suitable for a single occasional stop may not be suitable for a machine that stops every few minutes.
This is particularly important in conveyors, centrifuges and high-cycle production machinery.
27. Preventive Maintenance
| Maintenance Item | Recommended Inspection |
|---|---|
| Cooling Fans | Check operation and abnormal noise |
| Airflow | Verify unobstructed airflow |
| Heat-Dissipation Area | Check for dust accumulation |
| Power Connections | Inspect for overheating or loose connections |
| Grounding | Verify ground integrity |
| Motor Cable | Inspect insulation and connections |
| Braking Circuit | Inspect resistor and wiring |
| Network Connection | Check communication stability |
| Drive Parameters | Verify approved parameter backup |
| Fault History | Review recurring faults |
| Cabinet | Check temperature and contamination |
| Motor Current | Compare with normal operating values |
28. Same-Series Related Models
The following models are useful when comparing the 20G1AGF098JA0NNNNN with nearby 690 VAC PowerFlex 755 configurations.
| Model | Voltage | Current | Normal Duty | Heavy Duty | Frame | Configuration |
|---|---|---|---|---|---|---|
| 20G1AGF061JA0NNNNN | 690 VAC | 61 A | 55 kW | 45 kW | Frame 6 | Type 12/IP54, DB transistor |
| 20G1AGF082JA0NNNNN | 690 VAC | 82 A | 75 kW | 55 kW | Frame 6 | Type 12/IP54, DB transistor |
| 20G1AGF098JA0NNNNN | 690 VAC | 98 A | 90 kW | 75 kW | Frame 6 | Type 12/IP54, DB transistor |
| 20G1AGF119JA0NNNNN | 690 VAC | 119 A | 110 kW | 90 kW | Frame 6 | Type 12/IP54, DB transistor |
| 20G1AGF142JA0NNNNN | 690 VAC | 142 A | 132 kW | 110 kW | Frame 6 | Type 12/IP54, DB transistor |
These models form a useful progression around the 98 A configuration.
The 82 A version is a reasonable choice when the motor requirement is below the 98 A class.
The 119 A and 142 A versions are useful when additional current and power capacity is required.
29. Recommended Model Comparison
| Model | ND Power | HD Power | Current | Relative Position |
|---|---|---|---|---|
| 20G1AGF061JA0NNNNN | 55 kW | 45 kW | 61 A | Smaller |
| 20G1AGF082JA0NNNNN | 75 kW | 55 kW | 82 A | Slightly smaller |
| 20G1AGF098JA0NNNNN | 90 kW | 75 kW | 98 A | Reference model |
| 20G1AGF119JA0NNNNN | 110 kW | 90 kW | 119 A | Larger |
| 20G1AGF142JA0NNNNN | 132 kW | 110 kW | 142 A | Significantly larger |
This makes the 20G1AGF098JA0NNNNN a useful middle selection for applications around the 90 kW range.
30. Open-Type Alternative
A related alternative is the 20G1ANF098JA0NNNNN.
It uses the same general 690 VAC, 98 A, 90 kW ND / 75 kW HD electrical class but is configured as an open-type drive rather than the Type 12/IP54 packaged version.
| Parameter | 20G1AGF098JA0NNNNN | 20G1ANF098JA0NNNNN |
|---|---|---|
| Series | PowerFlex 755 | PowerFlex 755 |
| Voltage | 690 VAC | 690 VAC |
| Current | 98 A | 98 A |
| Normal Duty | 90 kW | 90 kW |
| Heavy Duty | 75 kW | 75 kW |
| Enclosure | Type 12 / IP54 | Open Type |
| Cooling | Forced Air | Forced Air |
| Dynamic Braking | DB Transistor | DB Transistor |
| Filtering | Filtered | Filtered |
| CM Jumper | Installed | Installed |
| HIM | Blank / No HIM | Blank / No HIM |
| Application | Protected installation | Customer cabinet |
The packaged model is generally more convenient when environmental protection is required.
The open-type version can be attractive when the drive is being installed inside a properly engineered electrical cabinet.
31. JA0 vs. JN0
Another important comparison is the JA0 and JN0 configurations.
| Feature | 20G1AGF098JA0NNNNN | 20G1AGF098JN0NNNNN |
|---|---|---|
| Voltage | 690 VAC | 690 VAC |
| Current | 98 A | 98 A |
| Normal Duty | 90 kW | 90 kW |
| Heavy Duty | 75 kW | 75 kW |
| Frame | Frame 6 | Frame 6 |
| Enclosure | Type 12/IP54 | Type 12/IP54 |
| Dynamic Braking | DB Transistor | No DB transistor |
| Cooling | Forced Air | Forced Air |
| Input | AC with Precharge | AC with Precharge |
| Filtering | Filtered | Filtered |
| CM Jumper | Installed | Installed |
| HIM | Blank / No HIM | Blank / No HIM |
If the application requires dynamic braking, the JA0 configuration is the more appropriate starting point.
If the machine does not require a braking transistor, the JN0 configuration can provide a simpler alternative.
32. Five Recommended Same-Series or Related Models
| Model | Voltage | Current | ND Rating | HD Rating | Main Reason to Consider |
|---|---|---|---|---|---|
| 20G1AGF061JA0NNNNN | 690 VAC | 61 A | 55 kW | 45 kW | Lower-power alternative |
| 20G1AGF082JA0NNNNN | 690 VAC | 82 A | 75 kW | 55 kW | Close lower-capacity option |
| 20G1AGF119JA0NNNNN | 690 VAC | 119 A | 110 kW | 90 kW | Higher-capacity alternative |
| 20G1AGF142JA0NNNNN | 690 VAC | 142 A | 132 kW | 110 kW | Higher-power application |
| 20G1ANF098JA0NNNNN | 690 VAC | 98 A | 90 kW | 75 kW | Open-type equivalent class |
These five models provide practical alternatives depending on motor size, enclosure requirements and required power capacity.
33. Five Popular Allen-Bradley Models
| Model | Product Series | Voltage Class | Current / Power Class | Typical Application |
|---|---|---|---|---|
| 25B-D030N114 | PowerFlex 525 | 480 VAC class | 30 A class | Compact industrial machines |
| 25C-D030N114 | PowerFlex 523 | 480 VAC class | 30 A class | General-purpose motor control |
| 20G1AGE053JA0NNNNN | PowerFlex 755 | 600 VAC | 53 A / 50 HP ND | Medium-size industrial motors |
| 20G1AGC260JN0NNNNN | PowerFlex 755 | 400 VAC | 260 A / 132 kW ND | Large industrial machinery |
| 20G1AND302JA0NNNNN | PowerFlex 755 | 480 VAC | 302 A / 250 HP ND | Large industrial motors |
These five models represent different parts of the Allen-Bradley drive range.
The PowerFlex 525 and PowerFlex 523 models are typically more appropriate for compact and general-purpose machinery, while the PowerFlex 755 models are aimed at larger and more sophisticated industrial applications.
34. Product Selection by Application
| Application | Recommended Characteristics |
|---|---|
| Large Pump | 690 VAC, 90 kW ND class |
| Large Fan | 90 kW ND class, variable-speed control |
| Blower | 90 kW ND / 75 kW HD depending on load |
| Conveyor | Evaluate HD rating and dynamic braking |
| High-Inertia Machine | JA0 dynamic-braking configuration |
| Material Handling | Dynamic braking and network control |
| Process Machinery | EtherNet/IP integration |
| Industrial Cooling | Variable-speed control |
| Mining Equipment | High-voltage industrial drive architecture |
| Heavy Machinery | Verify HD current and torque requirements |
35. Why This Model Is Attractive for High-Inertia Applications
The combination of 98 A current capacity, 90 kW ND rating, 75 kW HD rating and a DB transistor makes this model particularly interesting for applications where both motor capacity and controlled deceleration are important.
A typical example is a large conveyor.
During acceleration, the drive gradually increases motor frequency and torque.
During normal operation, the drive maintains the required speed.
During deceleration, the motor can return energy to the DC bus.
The dynamic-braking circuit can then be used to dissipate that energy through a correctly sized braking resistor.
This gives the machine designer more control over the stopping profile.
36. Advantages in Automated Production Lines
In an automated production environment, the embedded EtherNet/IP interface can simplify the relationship between the drive and the machine controller.
The PLC can issue commands while receiving operational information from the drive.
This allows the system to monitor:
- Motor speed
- Current
- Frequency
- Drive status
- Faults
- Alarms
- Operating conditions
The result is a more integrated motor-control architecture.
37. Advantages for Centralized Control Rooms
Because the model is configured without a local HIM, it fits naturally into installations where operators work from a central HMI or SCADA station.
Instead of requiring an operator to approach the drive physically, the automation system can provide:
- Start/stop control
- Speed adjustment
- Status monitoring
- Fault indication
- Diagnostic information
- Maintenance information
This can be particularly useful in large factories and distributed process plants.
38. Advantages of Type 12/IP54 Packaging
The Type 12/IP54 configuration reduces the need to place the drive inside a separate basic open enclosure in applications where the packaged protection is already suitable.
This can simplify equipment design.
It can also provide a cleaner installation arrangement for:
- Factory machinery
- Process equipment
- Pump rooms
- Industrial ventilation systems
- Material-handling systems
Environmental requirements must still be checked against the actual installation site.
39. Engineering Considerations for Cabinet Design
The physical size of a Frame 6 packaged drive is only one part of cabinet planning.
The design should also include space for:
- Incoming power
- Motor output cables
- Control wiring
- Network cabling
- Braking resistor wiring
- Grounding
- Service access
- Cooling airflow
- Protective equipment
Cable bending radius can become a significant issue in high-current installations.
Therefore, the cabinet should not be designed around the drive body dimensions alone.
40. Recommended Spare-Parts Strategy
For industrial production equipment, the drive should be treated as part of a larger control system.
A maintenance plan should consider:
- Complete replacement drive
- Control components
- Cooling fans
- HIM modules if required
- Network components
- Braking components
- Approved parameter backup
- Motor data
- Drive configuration files
A spare drive is especially valuable for production-critical machinery.
Before storing a spare, its catalog number should be verified against the installed drive.
41. Replacement Checklist
When replacing a 20G1AGF098JA0NNNNN, verify the following:
| Check Item | Required |
|---|---|
| Voltage | 690 VAC |
| Phase | 3-Phase |
| Current | 98 A class |
| ND Rating | 90 kW |
| HD Rating | 75 kW |
| Frame | Frame 6 |
| Enclosure | Type 12/IP54 |
| Dynamic Braking | DB transistor required if used by machine |
| Filtering | Confirm |
| CM Jumper | Confirm |
| Communication | EtherNet/IP |
| HIM | Blank/no HIM |
| Cooling | Forced Air |
| Cabinet Space | Confirm |
| Motor Cable | Confirm |
| Braking Resistor | Confirm if applicable |
| Parameters | Back up before replacement |
42. Overall Technical Evaluation
The Allen-Bradley 20G1AGF098JA0NNNNN is a well-suited configuration for industrial motor applications requiring a 690 VAC, 98 A PowerFlex 755 drive with a protected Type 12/IP54 package.
Its 90 kW Normal Duty rating makes it suitable for many continuous industrial loads.
Its 75 kW Heavy Duty rating provides a useful operating range for more demanding machinery.
The dynamic-braking transistor adds an important capability for high-inertia and controlled-stop applications.
The embedded EtherNet/IP interface allows the drive to fit naturally into modern industrial automation architectures.
The Frame 6 construction keeps the package relatively compact for this power class, while forced-air cooling provides the necessary thermal management.
The Type 12/IP54 enclosure is another major advantage where the installation requires additional environmental protection.
43. Final Technical Specification Summary
| Category | Specification |
|---|---|
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Product | AC Variable Frequency Drive |
| Catalog Number | 20G1AGF098JA0NNNNN |
| Voltage | 690 VAC |
| Phase | 3-Phase |
| Current | 98 A |
| Normal Duty | 90 kW |
| Heavy Duty | 75 kW |
| Frame | Frame 6 |
| Cooling | Forced Air |
| Enclosure | Type 12 / IP54 |
| Input | AC with Precharge |
| DC Terminals | None |
| Filtering | Filtered |
| CM Jumper | Installed |
| Dynamic Braking | DB Transistor |
| HIM | Blank / No HIM |
| Communication | Embedded EtherNet/IP |
| Approx. Width | 300–400 mm |
| Approx. Height | 600–800 mm |
| Approx. Depth | 300–400 mm |
| Approx. Weight | 55–75 kg |
| Main Applications | Pumps, fans, blowers, conveyors, material handling, process machinery |
| Main Advantage | High-voltage, high-power industrial motor control with dynamic-braking capability |
44. Final Product Description
The Allen-Bradley 20G1AGF098JA0NNNNN PowerFlex 755 AC Drive is a 690 VAC, three-phase industrial variable-frequency drive designed for demanding motor-control applications.
With 98 A output current, 90 kW Normal Duty capacity and 75 kW Heavy Duty capacity, it provides a substantial power range for industrial pumps, fans, blowers, conveyors, process equipment and material-handling machinery.
Its Frame 6 design provides a practical mechanical platform for this power class, while the forced-air cooling system supports continuous operation when the installation has adequate airflow and thermal management.
The Type 12/IP54 enclosure provides additional protection for industrial environments, while the filtered input and installed CM jumper form part of the drive’s overall electrical configuration.
One of the strongest features of this particular catalog number is the JA0 dynamic-braking transistor. This makes the model particularly attractive for applications involving high inertia, frequent deceleration, rapid stopping or controlled stopping profiles.
The integrated EtherNet/IP capability further supports integration with PLC-based automation systems, machine HMIs and centralized control architectures.
For a new installation, the most important selection points are the 690 VAC supply, 98 A current rating, 90 kW ND rating, 75 kW HD rating, Frame 6 construction, Type 12/IP54 enclosure and JA0 dynamic-braking configuration.
For replacement work, the complete catalog number should be matched rather than selecting a drive solely by horsepower. Voltage, current, duty rating, frame, enclosure, braking configuration, filtering, communication requirements and mechanical dimensions should all be verified.
From an engineering standpoint, the 20G1AGF098JA0NNNNN is best suited to medium-to-large industrial motor applications where high-voltage operation, reliable variable-speed control, network integration and controlled deceleration are important.