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The Allen-Bradley 20G1ANF082JA0NNNNN is a high-power AC variable frequency drive from the PowerFlex 755 series. It is designed for industrial motor-control applications where reliable speed regulation, controlled acceleration and deceleration, communication capability, and flexible drive configuration are required.
This model is designed for a 690 VAC, three-phase power system and provides an 82 A normal-duty output rating. Its normal-duty power rating is 75 kW, while the heavy-duty rating is 55 kW. The drive uses a Frame 6 mechanical configuration and forced-air cooling.
A particularly important feature of the JA0 configuration is the inclusion of an internal dynamic-braking transistor. This makes the model suitable for applications in which the motor needs controlled deceleration and where regenerative energy during braking needs to be handled through an external braking resistor arrangement.
The drive also incorporates EtherNet/IP communication, allowing it to be integrated into an industrial automation network and connected with programmable controllers, operator interfaces, supervisory systems, and other compatible automation equipment.
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Series | PowerFlex 755 |
| Product Type | AC Variable Frequency Drive |
| Catalog Number | 20G1ANF082JA0NNNNN |
| Drive Family | PowerFlex 755 AC Drive |
| Voltage Class | 690 VAC |
| Input Phase | 3 Phase |
| Normal-Duty Power | 75 kW |
| Heavy-Duty Power | 55 kW |
| Normal-Duty Current | 82 A |
| Heavy-Duty Current | 61 A |
| Frame Size | Frame 6 |
| Cooling Method | Forced Air |
| Communication | Embedded EtherNet/IP |
| Dynamic Braking | Internal Dynamic-Braking Transistor |
| Input Configuration | AC Input with Precharge |
| DC Terminals | No DC Terminals |
| Protection / Enclosure | IP20 / IP00, Open Type |
| EMC / Filtering | Filtered configuration |
| HIM | No HIM / Blank configuration |
| CM Jumper | Installed |
| Approximate Dimensions | 665.5 × 308 × 346.4 mm |
| Approximate Weight | 48 kg |
| Mounting | Panel / Cabinet Installation |
| Main Function | Variable-Speed AC Motor Control |
| Technical Parameter | 20G1ANF082JA0NNNNN Specification |
|---|---|
| Model | 20G1ANF082JA0NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Drive Type | AC Variable Frequency Drive |
| Input Voltage | 690 VAC nominal |
| Input Configuration | Three-phase AC input |
| Input Frequency | Industrial AC supply frequency range |
| Output | Three-phase variable-frequency AC output |
| Normal-Duty Current | 82 A |
| Heavy-Duty Current | 61 A |
| Normal-Duty Rating | 75 kW |
| Heavy-Duty Rating | 55 kW |
| Frame | Frame 6 |
| Cooling | Forced air |
| Communication | Embedded EtherNet/IP |
| Dynamic Braking | Yes, internal dynamic-braking transistor |
| DC Bus Terminals | Not provided in this configuration |
| Input Precharge | Yes |
| EMC / Filtering | Filtered |
| CM Jumper | Installed |
| HIM | Blank / no HIM |
| Protection | IP20 / IP00 |
| Enclosure Type | Open Type |
| Approx. Height | 665.5 mm |
| Approx. Width | 308 mm |
| Approx. Depth | 346.4 mm |
| Approx. Dimensions | 665.5 × 308 × 346.4 mm |
| Approx. Weight | 48 kg |
| Installation | Electrical cabinet / control panel |
| Cooling Requirement | Forced-air ventilation |
| Application Type | Industrial motor speed and torque control |
The 20G1ANF082JA0NNNNN belongs to the PowerFlex 755 family of industrial AC drives. This family is intended for applications where a standard fixed-speed motor starter is not enough and the process requires adjustable speed, controlled torque, smoother starting, controlled stopping, or integration with an automation system.
With an 82 A normal-duty rating and 75 kW normal-duty power rating, this model is positioned for relatively large industrial motors. It is suitable for machinery and process systems where the motor load can change considerably during operation.
The drive is built around a three-phase 690 VAC industrial power architecture. The 690 V class is particularly useful in higher-power installations because higher system voltage can allow the required motor power to be transferred with lower current compared with an equivalent lower-voltage system.
The JA0 configuration also includes an internal dynamic-braking transistor. This is an important difference from configurations without the braking transistor. When the driven machine needs rapid or controlled deceleration, the drive can be configured with an appropriate external braking resistor system to dissipate braking energy.
The embedded EtherNet/IP capability also makes the drive suitable for modern industrial automation systems. Instead of treating the drive as an isolated motor controller, it can be incorporated into a larger control architecture where operating commands, speed references, status information, alarms, and diagnostic information can be exchanged with the automation controller.
The complete catalog number is:
20G1ANF082JA0NNNNN
The model number identifies a particular PowerFlex 755 drive configuration rather than simply identifying the power rating.
| Model Section | General Identification |
|---|---|
| 20G | PowerFlex 755 AC drive family |
| 1 | Drive configuration identifier |
| A / N / F | Configuration and voltage-class information |
| 082 | 82 A current class |
| JA0 | Specific factory configuration including dynamic-braking transistor |
| NNNNN | Additional option/configuration positions |
The most important practical information is the combination of PowerFlex 755 + 690 VAC + 82 A + 75 kW ND + 55 kW HD + Frame 6 + JA0 dynamic-braking configuration.
When selecting a replacement, it is important not to choose a drive solely because the power rating appears similar. Input voltage, motor current, duty rating, frame size, braking requirements, communications, enclosure arrangement, filtering, and installed options should all be checked.
One of the important characteristics of the 20G1ANF082JA0NNNNN is that it has two different power ratings depending on the application duty.
| Rating | Current | Power |
|---|---|---|
| Normal Duty | 82 A | 75 kW |
| Heavy Duty | 61 A | 55 kW |
The 75 kW normal-duty rating is suitable for applications where the motor generally operates with a comparatively moderate overload requirement.
The 55 kW heavy-duty rating provides a lower continuous power rating but is intended for applications with more demanding overload or torque requirements.
This distinction is important when applying the drive to conveyors, crushers, mixers, hoists, compressors, process machinery, and other equipment where starting torque and overload conditions can be significant.
The drive should therefore be selected according to the actual motor full-load current and application duty rather than simply matching the motor nameplate kW.
The JA0 configuration includes an internal dynamic-braking transistor.
This is one of the major configuration characteristics of the 20G1ANF082JA0NNNNN.
During deceleration, the motor can return energy to the drive DC bus. If the machine is decelerating rapidly or has a high-inertia load, the DC bus voltage can rise.
A braking system can be used to manage this energy. The internal dynamic-braking transistor provides the switching function required for an appropriate external braking resistor arrangement.
This feature can be valuable for applications such as:
The exact braking resistor selection should always be based on the machine inertia, stopping time, duty cycle, motor characteristics, and drive application requirements.
The 20G1ANF082JA0NNNNN includes embedded EtherNet/IP communication.
This allows the drive to become part of an industrial control network rather than operating as a standalone speed controller.
Typical information exchanged through the network can include:
This type of connectivity is especially useful in automated manufacturing environments where several drives need to be managed from a central control system.
It can also reduce the amount of conventional hardwired control required for certain control architectures.
The drive is intended for a 690 VAC three-phase industrial power system.
The output is variable-frequency three-phase AC, allowing the connected motor to operate at adjustable speed.
The drive can control motor acceleration and deceleration rather than simply switching the motor directly between an off state and full-speed operation.
This provides several practical benefits.
For example, a conveyor can be accelerated gradually rather than starting abruptly. A pump can be operated at a controlled speed instead of continuously running at full speed. A fan can adjust its speed according to the process requirement. Industrial machinery can also use controlled acceleration and deceleration to reduce mechanical shock.
Physical size is particularly important when installing a Frame 6 industrial drive into an existing electrical cabinet.
| Physical Parameter | Specification |
|---|---|
| Model | 20G1ANF082JA0NNNNN |
| Height | Approx. 665.5 mm |
| Width | Approx. 308 mm |
| Depth | Approx. 346.4 mm |
| Overall Approx. Size | 665.5 × 308 × 346.4 mm |
| Approx. Weight | 48 kg |
| Frame | Frame 6 |
| Cooling | Forced air |
| Installation | Cabinet / panel |
The approximately 48 kg weight should be considered when designing the mounting structure.
The cabinet should provide sufficient mechanical support and adequate ventilation around the drive.
Clearance should also be considered for incoming power cables, motor cables, control wiring, network cables, maintenance access, and airflow.
The 20G1ANF082JA0NNNNN uses forced-air cooling.
At 75 kW, the drive can generate substantial heat during operation. Proper cabinet ventilation is therefore important.
A suitable installation should provide:
The actual cabinet design should take into account the drive’s heat dissipation, other heat-producing components, ambient temperature, altitude, enclosure construction, and ventilation method.
The drive is associated with an IP20 / IP00 open-type configuration.
This means the drive itself should not be treated as a fully sealed outdoor enclosure.
For industrial installations, it is normally integrated into a suitable electrical cabinet or control enclosure that provides the required environmental protection.
The final enclosure should be selected according to:
This is especially important in production environments where the drive may be exposed to dust, oil mist, humidity, vibration, or other industrial contaminants.
The 20G1ANF082JA0NNNNN is suitable for a broad range of industrial motor-control applications.
Conveyors are one of the natural applications for a variable frequency drive.
The drive can provide controlled acceleration and deceleration, adjustable conveyor speed, and network-based control.
For large material-handling systems, the 75 kW normal-duty rating provides substantial motor-control capacity.
The dynamic-braking configuration can also be useful where the conveyor needs controlled stopping and the application has significant rotating or moving mass.
The drive can be used for large industrial pump systems where variable-speed operation is required.
Speed control can allow the pump to operate according to changing process requirements rather than simply running continuously at one fixed speed.
Typical applications include:
Large fans and blowers can benefit from adjustable-speed operation.
Instead of operating at a fixed speed under all conditions, the motor can be controlled according to the required airflow or process condition.
This can be useful in:
The drive is well suited to larger material-handling machinery where controlled motor operation is required.
Possible equipment includes:
The dynamic-braking capability can be especially relevant where the driven equipment has substantial inertia.
The drive can be incorporated into manufacturing equipment where adjustable motor speed is required.
Examples include:
Process industries often require motors to operate at different speeds depending on the production condition.
The 20G1ANF082JA0NNNNN can provide the variable-speed control needed for large process motors.
Its network connectivity also allows drive status and operating information to be integrated into a larger automation system.
The 75 kW normal-duty rating makes this model suitable for relatively large industrial motors.
It provides significantly more capacity than smaller PowerFlex 755 models in the same voltage family.
The 690 VAC design is suitable for high-power industrial electrical systems.
Using a higher voltage class can be useful in installations where large motor power needs to be transferred efficiently through the electrical system.
The JA0 configuration includes an internal dynamic-braking transistor.
This gives the drive an important additional capability for applications requiring controlled deceleration and management of regenerative energy.
The integrated EtherNet/IP interface simplifies integration into an industrial automation architecture.
This can be useful when a facility has multiple drives that need to be monitored and controlled from a central automation system.
The drive can provide adjustable motor speed and controlled acceleration and deceleration.
This makes it more flexible than a basic fixed-speed motor starter for many industrial applications.
With an 82 A normal-duty rating, the model can be used with substantially larger motors than compact general-purpose drives.
This makes it suitable for large conveyors, pumps, fans, process machinery, and other industrial equipment.
The Frame 6 design provides a standardized mechanical platform within the PowerFlex 755 family.
This is useful when several drives are being incorporated into a common equipment or cabinet design.
The following models are closely related PowerFlex 755 configurations in the 690 VAC family.
| Model | Voltage | Normal-Duty Current | Normal-Duty Power | Heavy-Duty Current | Heavy-Duty Power | Frame | Dynamic Braking | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|---|---|
| 20G1ANF061JA0NNNNN | 690 VAC | 61 A | 55 kW | 50 A | 45 kW | Frame 6 | Yes | Frame 6; approx. 665.5 × 308 × 346.4 mm* | Approx. 48 kg* |
| 20G1ANF098JA0NNNNN | 690 VAC | 98 A | 90 kW | 82 A | 75 kW | Frame 6 | Yes | Frame 6; configuration dependent | Configuration dependent |
| 20G1ANF119JA0NNNNN | 690 VAC | 119 A | 110 kW | 98 A | 90 kW | Frame 6 | Yes | Frame 6; configuration dependent | Configuration dependent |
| 20G1ANF142JA0NNNNN | 690 VAC | 142 A | 132 kW | 119 A | 110 kW | Frame 6 | Yes | Frame 6; configuration dependent | Configuration dependent |
| 20G1ANF171JA0NNNNN | 690 VAC | 171 A | 160 kW | 142 A | 132 kW | Frame 7 | Yes | Frame 7; configuration dependent | Configuration dependent |
*Physical dimensions and weight for related configurations should be checked against the exact catalog configuration before final cabinet or mounting design.
The five models above provide a useful progression around the 82 A target model.
| Parameter | 20G1ANF061JA0NNNNN | 20G1ANF082JA0NNNNN | 20G1ANF098JA0NNNNN | 20G1ANF119JA0NNNNN | 20G1ANF142JA0NNNNN |
|---|---|---|---|---|---|
| Voltage | 690 VAC | 690 VAC | 690 VAC | 690 VAC | 690 VAC |
| Normal-Duty Current | 61 A | 82 A | 98 A | 119 A | 142 A |
| Normal-Duty Power | 55 kW | 75 kW | 90 kW | 110 kW | 132 kW |
| Heavy-Duty Current | 50 A | 61 A | 82 A | 98 A | 119 A |
| Heavy-Duty Power | 45 kW | 55 kW | 75 kW | 90 kW | 110 kW |
| Frame | 6 | 6 | 6 | 6 | 6 |
| Cooling | Forced Air | Forced Air | Forced Air | Forced Air | Forced Air |
| EtherNet/IP | Yes | Yes | Yes | Yes | Yes |
| Dynamic-Braking Transistor | Yes | Yes | Yes | Yes | Yes |
| Dimensions | Configuration dependent | 665.5 × 308 × 346.4 mm approx. | Configuration dependent | Configuration dependent | Configuration dependent |
| Weight | Configuration dependent | 48 kg approx. | Configuration dependent | Configuration dependent | Configuration dependent |
The 20G1ANF061JA0NNNNN is the lower-current option in this comparison.
The 20G1ANF082JA0NNNNN sits between the 61 A and 98 A versions and provides a 75 kW normal-duty rating.
The 20G1ANF098JA0NNNNN provides additional current and power capacity when the 82 A model is not sufficient.
The 119 A and 142 A versions move further into higher-power industrial motor applications.
The following models are useful related Allen-Bradley drives for comparison across different PowerFlex families.
| Model | Series | Voltage Class | Current / Power Class | Frame / Size | Cooling | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|
| 25B-D2P3N114 | PowerFlex 525 | 480 VAC class | Approx. 2.3 A class | Compact | Fan cooled | Compact-frame dimensions, configuration dependent | Configuration dependent |
| 25B-D017N104 | PowerFlex 525 | 480 VAC class | Approx. 17 A class | Compact | Fan cooled | Compact-frame dimensions, configuration dependent | Configuration dependent |
| 20F11NC2P2JA0NNNNN | PowerFlex 753 | 480 VAC class | Approx. 2.2 A class | Small-frame configuration | Forced air | Configuration dependent | Configuration dependent |
| 20G1ANF061JA0NNNNN | PowerFlex 755 | 690 VAC | 61 A ND / 50 A HD | Frame 6 | Forced air | Approx. Frame 6 dimensions | Approx. 48 kg class* |
| 20G1ANF098JA0NNNNN | PowerFlex 755 | 690 VAC | 98 A ND / 82 A HD | Frame 6 | Forced air | Frame 6 configuration | Configuration dependent |
*Exact dimensions and weight can vary with the complete factory configuration.
The PowerFlex 525 family is generally associated with more compact drive installations and smaller motor applications.
The PowerFlex 755 family is designed for larger and more demanding industrial applications where greater power, more extensive control functionality, and broader system integration capabilities are required.
For example, the 25B-D2P3N114 is in a substantially smaller current class than the 20G1ANF082JA0NNNNN.
By comparison, the 20G1ANF082JA0NNNNN is a high-power 690 VAC Frame 6 drive with an 82 A normal-duty rating and 75 kW normal-duty capacity.
Therefore, these models should not be viewed as direct one-for-one replacements. They belong to different application ranges and have substantially different electrical and mechanical characteristics.
One particularly useful comparison is between the JA0 and JN0 versions of the same basic 690 VAC PowerFlex 755 family.
| Feature | JA0 Configuration | JN0 Configuration |
|---|---|---|
| Dynamic-Braking Transistor | Yes | No |
| 690 VAC Class | Yes | Yes |
| EtherNet/IP | Yes | Yes |
| Frame 6 for 82 A Version | Yes | Yes |
| Forced-Air Cooling | Yes | Yes |
| Normal-Duty Rating | 75 kW | 75 kW |
| Heavy-Duty Rating | 55 kW | 55 kW |
| Main Difference | Includes dynamic-braking transistor | No dynamic-braking transistor |
For a machine that requires dynamic braking, the distinction between these configurations can be important.
The complete catalog number should therefore be checked rather than treating every 20G1ANF082 model as identical.
The 20G1ANF082JA0NNNNN can be considered for a wide range of industrial systems, including:
| Application Area | Typical Motor-Control Requirement |
|---|---|
| Conveyors | Adjustable speed, controlled acceleration, controlled stopping |
| Pumps | Variable flow and pressure control |
| Fans | Adjustable airflow |
| Blowers | Variable process-air control |
| Material Handling | Speed and torque control |
| Process Machinery | Adjustable production speed |
| Mixers | Controlled starting and variable speed |
| Industrial Machinery | Motor speed and torque regulation |
| Production Lines | Coordinated motor operation |
| Large Utility Systems | Variable-speed operation |
| Heavy Industrial Equipment | High-power motor control |
| Automated Machinery | Networked drive control |
The biggest practical advantage of this model is that it can serve as both a motor-speed controller and an integrated automation component.
A traditional motor starter generally provides basic starting and stopping.
A variable frequency drive can provide much more control.
The 20G1ANF082JA0NNNNN can regulate motor speed, control acceleration, control deceleration, provide operating information, communicate with the automation system, and support application-specific braking requirements.
This makes it particularly useful in machines where motor speed is directly related to production rate or process conditions.
Network connectivity can also make maintenance easier.
Instead of relying only on local indicators, drive operating information can be incorporated into an automation system.
This can help maintenance personnel identify operating conditions and drive-related problems more efficiently.
The drive can also provide useful operating and diagnostic information to the control system, depending on the installed control architecture and parameter configuration.
For large industrial motors, starting and stopping can create considerable mechanical stress.
Using variable-speed control allows the machine to ramp the motor up rather than applying full operating conditions immediately.
The same principle applies to stopping.
Controlled deceleration can reduce sudden mechanical changes and can provide more predictable machine behavior.
For applications involving large rotating inertia, the dynamic-braking capability of the JA0 configuration can provide another useful tool for managing deceleration.
Before installing the 20G1ANF082JA0NNNNN, several factors should be checked.
The available power supply should match the drive’s voltage class and electrical requirements.
The upstream protective equipment should be selected appropriately for the installation.
The motor’s voltage, rated current, power, frequency, insulation system, and operating requirements should be compatible with the drive application.
Because the drive is approximately 665.5 mm high, 308 mm wide, and 346.4 mm deep, the cabinet should provide sufficient physical room.
Additional clearance is also required for wiring and cooling.
At approximately 48 kg, the drive requires a suitable mounting structure.
The cabinet backplate and mounting hardware should be capable of supporting the drive securely.
Forced-air cooling means that airflow must not be obstructed.
The cabinet’s thermal design should account for the drive’s heat generation and the heat generated by other equipment installed nearby.
When selecting the 20G1ANF082JA0NNNNN for a project, the following points should be checked:
| Selection Item | What to Check |
|---|---|
| Motor Voltage | Confirm compatibility with the drive output system |
| Motor Current | Compare actual motor full-load current with the drive rating |
| Motor Power | Confirm the required kW rating |
| Duty | Determine whether normal-duty or heavy-duty operation applies |
| Supply Voltage | Confirm 690 VAC three-phase system |
| Braking | Determine whether dynamic braking is required |
| Communication | Confirm EtherNet/IP requirements |
| Cabinet | Confirm physical dimensions and mounting space |
| Weight | Allow for approximately 48 kg |
| Cooling | Provide sufficient forced-air ventilation |
| Environment | Check temperature, humidity, dust and other conditions |
| Cable Routing | Provide appropriate power, motor, control and network routing |
| Protection | Select appropriate external protective equipment |
| Motor Parameters | Configure the drive according to the actual motor |
| Control Method | Define the required speed, torque and command structure |
| Maintenance Access | Leave sufficient room for service and inspection |
The 20G1ANF082JA0NNNNN occupies a substantial position within the 690 VAC PowerFlex 755 range.
Its combination of:
makes it suitable for demanding industrial motor-control systems.
It is not intended as a small compact machine drive. Its physical size, weight, electrical rating, and cooling requirements place it firmly in the category of larger industrial variable-frequency drives.
| Parameter | Final Specification |
|---|---|
| Model | 20G1ANF082JA0NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Product Type | Industrial AC Variable Frequency Drive |
| Input Voltage | 690 VAC |
| Phases | 3 Phase |
| Normal-Duty Current | 82 A |
| Normal-Duty Power | 75 kW |
| Heavy-Duty Current | 61 A |
| Heavy-Duty Power | 55 kW |
| Frame | 6 |
| Cooling | Forced Air |
| Communication | Embedded EtherNet/IP |
| Dynamic Braking | Internal Dynamic-Braking Transistor |
| Input | AC with Precharge |
| DC Terminals | None |
| Filtering | Filtered |
| CM Jumper | Installed |
| HIM | Blank / No HIM |
| Enclosure | IP20 / IP00 Open Type |
| Height | Approx. 665.5 mm |
| Width | Approx. 308 mm |
| Depth | Approx. 346.4 mm |
| Dimensions | Approx. 665.5 × 308 × 346.4 mm |
| Weight | Approx. 48 kg |
| Primary Application | Large Industrial Motor Control |
| Typical Applications | Conveyors, pumps, fans, blowers, process machinery, material handling, production equipment |
The Allen-Bradley 20G1ANF082JA0NNNNN PowerFlex 755 AC Drive is a high-power industrial variable frequency drive designed for three-phase 690 VAC motor-control applications.
With an 82 A normal-duty rating and 75 kW normal-duty capacity, it can handle substantially larger motors than compact variable-frequency drives. Its 55 kW heavy-duty rating at 61 A also allows it to be applied to more demanding motor loads when the appropriate duty classification is used.
The drive’s Frame 6 construction and forced-air cooling system are designed for industrial installations, while its approximate 665.5 × 308 × 346.4 mm dimensions and 48 kg weight should be taken into account during cabinet design and installation.
The integrated EtherNet/IP communication capability allows the drive to participate in a networked automation system, making it suitable for modern production lines and process-control environments.
Another important characteristic is the JA0 dynamic-braking configuration. The internal dynamic-braking transistor provides the drive with a braking-control capability that can be useful in applications involving high inertia or controlled stopping, provided the complete braking system is correctly designed.
Overall, the 20G1ANF082JA0NNNNN is intended for large industrial motor applications where adjustable speed, controlled acceleration and deceleration, network communication, and a higher-power 690 VAC drive platform are required.
For equipment selection, the most important points to verify are the actual motor current, required duty, supply voltage, braking requirements, cabinet dimensions, cooling conditions, communication architecture, and the exact factory configuration represented by the complete catalog number.