Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The Allen-Bradley 20G1F3C585LNDNNNNN is a large-frame, air-cooled AC drive designed for demanding industrial motor-control applications.
It belongs to the PowerFlex 755 drive family and is configured as an air-cooled packaged drive for three-phase, 400 VAC-class industrial power systems.
The catalog configuration is associated with a 585 A normal-duty rating, 607 A DC normal-duty rating, regenerative AFE architecture, floor mounting, Frame 8C construction, and Type 1/IP21 protection. The configuration also includes a door-mounted HIM arrangement and TotalFORCE control.
This is a high-power industrial drive rather than a small general-purpose VFD.
Its large current capacity makes it suitable for large motors and heavy machinery where controlled acceleration, controlled deceleration, variable-speed operation, torque control, and reliable industrial operation are important.
The model is particularly relevant to applications such as large conveyors, cranes, hoists, pumps, fans, compressors, material-handling systems, process machinery, mills, and other large rotating equipment.
The LND configuration is also associated with an AFE regenerative arrangement. This is important in applications where significant energy can be returned from the motor to the electrical system during deceleration.
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Series | PowerFlex 755 |
| Technology Platform | PowerFlex 755 / TotalFORCE |
| Product Type | High-Power AC Drive |
| Configuration | Air-Cooled Packaged Drive |
| Model | 20G1F3C585LNDNNNNN |
| Application Class | Large Industrial Motor Control |
| Mounting | Floor Mounted |
| Cooling | Air Cooled |
| Frame | Frame 8C |
| Input System | Three-Phase AC |
| Voltage Class | 400 VAC |
| Normal-Duty Current | 585 A |
| DC Normal-Duty Current | 607 A |
| Regenerative Architecture | AFE Regenerative |
| Enclosure Class | Type 1 / IP21 |
| Operator Interface | Door-Mounted HIM |
| Control | TotalFORCE |
The catalog number is consistently identified as an Air Cooled 755 AC Packaged Drive, while detailed product listings identify the 585 A configuration as an AFE regenerative PowerFlex 755 arrangement.
| Parameter | Specification |
|---|---|
| Model | 20G1F3C585LNDNNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Product Type | Air-Cooled AC Packaged Drive |
| Input Voltage | 400 VAC class |
| Input Phase | 3 Phase |
| Normal-Duty Current | 585 A |
| DC Normal-Duty Current | 607 A |
| Light-Duty Rating | Approximately 355 kW / 650 A class |
| Normal-Duty Rating | Approximately 315 kW / 585 A class |
| Heavy-Duty Rating | Approximately 250 kW / 472 A class |
| Cooling | Air Cooled |
| Drive Architecture | AFE Regenerative |
| Harmonic Architecture | Low-Harmonic configuration |
| Mounting | Floor Mount |
| Frame | 8C |
| Enclosure | Type 1 / IP21 |
| HIM | Door Mounted |
| Control Platform | TotalFORCE |
| EMC Configuration | Standard/option dependent |
| Motor Application | Large industrial AC motors |
| Approximate Weight | Configuration dependent; large packaged unit |
| Dimensions | Configuration dependent; exact mechanical drawing required |
The published product description associates this exact catalog number with 355 kW light duty, 315 kW normal duty, and 250 kW heavy duty, together with the 585 A normal-duty current class and Frame 8 construction.
The different duty ratings are important because the maximum motor capacity is not necessarily the same under every operating condition.
For final motor selection, the motor nameplate current, required overload, duty cycle, ambient temperature, speed range, and mechanical load should all be considered.
The 20G1F3C585LNDNNNNN is intended for a 400 VAC three-phase industrial power supply.
The 585 A normal-duty current rating places this drive in the high-current category.
This current level is intended for large industrial motors rather than small machine motors.
The drive’s high current capability allows it to provide controlled power to large motors while maintaining adjustable speed and torque control.
The listed DC normal-duty current is approximately 607 A, which is consistent with the large power-conversion capacity of the configuration.
A useful way to understand this drive is to look at its different duty categories.
| Duty Category | Approx. Power | Current Class |
|---|---|---|
| Light Duty | 355 kW | 650 A class |
| Normal Duty | 315 kW | 585 A |
| Heavy Duty | 250 kW | 472 A class |
These ratings show that the drive can support different application conditions depending on the required overload and operating duty.
A machine with a relatively stable load may be evaluated under a normal-duty or light-duty application.
A machine requiring higher torque, frequent acceleration, repeated overload, or demanding starting conditions may need to be evaluated using the heavy-duty rating.
The correct motor rating should therefore be selected from the actual machine requirements rather than simply from the largest kW number shown in a catalog description.
One of the most notable characteristics of the 20G1F3C585LNDNNNNN is its AFE regenerative configuration.
AFE means Active Front End.
A conventional AC drive normally takes electrical energy from the AC supply and converts it into controlled motor power.
During braking, however, the motor can return energy to the drive.
This returned energy is often called regenerative energy.
An AFE regenerative architecture can manage this energy and return it to the electrical supply when the system is designed for regenerative operation.
This can be particularly valuable in machines with frequent braking or large rotating inertia.
Typical examples include:
The actual energy-saving benefit depends on the machine’s operating profile.
A machine that rarely decelerates may have relatively little regenerative energy.
A machine that accelerates and decelerates repeatedly can potentially make much greater use of the regenerative architecture.
The PowerFlex 755 platform can be configured for applications where harmonic performance is an important consideration.
Large conventional drives can introduce harmonic currents into an electrical distribution system.
As drive power increases, the effect of harmonics can become more significant.
A low-harmonic drive architecture can therefore be valuable in large industrial facilities.
Typical environments include:
The actual harmonic performance depends on the complete electrical system and installation.
The drive should therefore be evaluated together with transformers, switchgear, cables, generators, other VFDs, power-factor equipment, and sensitive electrical loads.
The PowerFlex 755 family uses the TotalFORCE control platform for advanced drive control.
For a large motor, simply controlling frequency is often not enough.
The machine may require stable torque, controlled acceleration, controlled deceleration, accurate speed regulation, and predictable operation under changing loads.
The control platform is intended to provide the drive with a more comprehensive control capability.
This makes the PowerFlex 755 particularly suitable for industrial machinery where the drive is an important part of the overall automation system.
The identified configuration includes a door-mounted HIM.
HIM stands for Human Interface Module.
For large floor-mounted drives, a door-mounted operator interface is practical because technicians can view drive information and perform operating or diagnostic functions from the front of the equipment.
Typical activities may include:
The exact functions available depend on the configured interface and control system.
The 20G1F3C585LNDNNNNN is a large industrial drive package.
It is identified as a floor-mounted Frame 8C configuration.
This means the installation approach is completely different from small VFDs that are mounted directly onto a control panel.
The drive requires suitable floor space, adequate service clearance, proper ventilation, and appropriate electrical cable access.
Because the exact physical package can vary with cabinet and option configuration, the final dimensions should be taken from the mechanical drawing for the complete catalog-number configuration.
This is especially important when the drive is being installed in a new electrical room or integrated into a custom cabinet.
For this particular model, publicly available product listings do not provide a sufficiently reliable fixed dimensional figure for every possible packaged configuration.
Therefore, it is safer to treat the dimensions as configuration-dependent rather than assigning a potentially incorrect single number.
| Mechanical Parameter | Specification |
|---|---|
| Model | 20G1F3C585LNDNNNNN |
| Mounting | Floor Mounted |
| Frame | 8C |
| Cooling | Air Cooled |
| Enclosure | Type 1 / IP21 |
| Height | Configuration dependent |
| Width | Configuration dependent |
| Depth | Configuration dependent |
| Overall Dimensions | Configuration dependent |
| Weight | Configuration dependent |
| Weight Unit | kg |
| Installation Category | Large industrial electrical equipment |
| Handling | Mechanical lifting equipment required |
| Service Clearance | Required around equipment |
| Ventilation | Required |
This approach is preferable to using dimensions from a different PowerFlex configuration and presenting them as exact.
For purchasing, installation, shipping, and foundation design, the final mechanical drawing should be treated as the controlling document.
The 20G1F3C585LNDNNNNN is designed for large AC motors that require controlled speed and torque.
In a conventional fixed-speed system, a motor is connected to the electrical supply and generally runs at a speed determined by the supply frequency and motor characteristics.
A variable-frequency drive changes this arrangement.
The drive controls the electrical output supplied to the motor.
The output frequency can be adjusted, allowing the motor to operate at different speeds.
This provides the machine with much greater flexibility.
A conveyor can run at different speeds.
A pump can adjust its output.
A fan can vary airflow.
A compressor can respond to changing process demand.
A large rotating machine can accelerate and decelerate in a controlled manner.
For industrial machinery, these capabilities can be extremely useful.
The 585 A normal-duty rating gives the drive substantial motor-control capacity.
This makes it suitable for large industrial motors and heavy mechanical loads.
It is not intended for small machine applications.
The AFE regenerative architecture is a major advantage in applications with frequent braking.
Instead of treating all regenerated energy as something that simply needs to be dissipated, the system can be designed to return energy to the electrical network.
This can improve energy management in suitable applications.
The low-harmonic characteristics are useful for large industrial facilities where power quality is important.
This can be particularly valuable when several high-power drives are operating on the same electrical network.
The PowerFlex 755 platform provides advanced control functions for demanding machinery.
This is useful when the machine requires accurate speed and torque management.
The Frame 8C floor-mounted construction is intended for high-power industrial applications.
The physical arrangement provides a suitable format for large electrical rooms and machinery installations.
The air-cooled construction provides a conventional industrial cooling solution.
It does not require a separate liquid-cooling circuit.
The installation must nevertheless provide adequate ventilation and heat removal.
Large conveyors can have substantial starting torque requirements.
A high-current drive can accelerate the motor progressively instead of applying the full mechanical load immediately.
This can reduce mechanical shock.
The conveyor speed can also be adjusted according to production requirements.
Applications include mining, bulk material handling, ports, warehouses, steel plants, cement plants, and manufacturing facilities.
Cranes require careful speed and torque control.
When a crane accelerates, stops, lifts, or lowers a heavy load, the motor can experience changing torque requirements.
A regenerative drive is particularly interesting in applications where energy is returned during lowering or braking.
The complete crane system still requires independent safety devices, mechanical brakes, limit systems, and suitable safety control.
Large hoists can benefit from controlled acceleration and deceleration.
The drive can form part of a complete hoisting control system.
Regenerative operation can also be useful where the load causes the motor to operate in a generating condition.
Large pumps frequently operate under changing process requirements.
Variable-speed operation allows the pump motor to operate at a speed appropriate to the process.
This can be useful in:
Large fans and blowers can use variable-speed control to adjust airflow.
This can provide more flexible process control than operating the motor continuously at one fixed speed.
Large industrial ventilation systems are a typical example.
Large compressors can require substantial motor power.
Where the compressor design supports variable-speed operation, the drive can control the motor according to process demand.
This can be useful in industrial air systems, gas systems, process equipment, and other large compression applications.
The drive can also be used in process equipment such as:
In these applications, consistent motor speed and controlled torque can have a direct effect on process stability.
| Application | Main Drive Benefit | Typical Requirement |
|---|---|---|
| Large Conveyor | Controlled starting and speed | High starting torque |
| Crane | Speed and torque control | Frequent acceleration/deceleration |
| Hoist | Controlled lifting operation | High torque and braking |
| Pump | Variable process flow | Adjustable speed |
| Fan | Adjustable airflow | Variable-speed operation |
| Compressor | Process control | Stable motor operation |
| Mixer | Controlled torque | Changing mechanical load |
| Mill | High-power motor control | Heavy-duty operation |
| Extruder | Stable speed | Continuous process operation |
| Test Stand | Precise control | Repeated acceleration/deceleration |
A 585 A industrial drive requires careful electrical engineering.
The incoming power conductors must be appropriately sized.
The upstream protective equipment must be selected according to the drive’s electrical requirements and the applicable installation standards.
Grounding and bonding are also important.
Motor output cables must be selected according to the motor current, cable length, installation method, insulation requirements, and applicable drive guidelines.
The control wiring should be separated appropriately from high-power conductors where required.
Because this is a high-power drive, electrical installation should be performed by qualified personnel.
Air-cooled high-power drives generate significant heat.
The installation therefore needs a reliable airflow path.
Fresh air must be available at the appropriate intake locations.
Hot exhaust air must be removed.
If the drive is installed in an electrical room, the room ventilation system should account for the heat generated by the equipment.
If the drive is installed in a larger enclosure, the enclosure thermal design should be calculated rather than relying on natural ventilation without verification.
Dust accumulation should also be controlled because blocked airflow can reduce cooling efficiency.
The identified configuration is associated with a Type 1/IP21 enclosure arrangement.
The installation area should therefore be selected carefully.
The drive should be protected from:
A clean industrial electrical room is generally a better environment than an exposed outdoor installation.
Where the actual environment is more severe, an appropriate enclosure or environmental protection strategy should be considered.
A large air-cooled drive should receive regular inspection.
Typical maintenance activities include:
Cooling is particularly important for a large air-cooled drive.
If the cooling system is not operating correctly, drive temperature can rise significantly.
The following five models are useful related PowerFlex 755 configurations for comparison.
They are selected around the same high-current product range.
| Model | Series | Current Class | Configuration | Voltage Class | Cooling | Dimensions | Weight kg |
|---|---|---|---|---|---|---|---|
| 20G1F3C540LNDNNNNN | PowerFlex 755 | 540 A class | Air-cooled packaged drive | 400 V class | Air cooled | Configuration dependent | Configuration dependent |
| 20G1F3C585LNANNNNN | PowerFlex 755 | 585 A class | Air-cooled packaged drive | 400 V class | Air cooled | Configuration dependent | Configuration dependent |
| 20G1F3C650LNDNNNNN | PowerFlex 755 | 650 A class | Air-cooled packaged drive | 400 V class | Air cooled | Configuration dependent | Configuration dependent |
| 20G1F3C750LNDNNNNN | PowerFlex 755 | 750 A class | Air-cooled packaged drive | 400 V class | Air cooled | Configuration dependent | Configuration dependent |
| 20G1F3C770LNDNNNNN | PowerFlex 755 | 770 A class | Air-cooled packaged drive | 400 V class | Air cooled | Configuration dependent | Configuration dependent |
These catalog numbers are listed as Air Cooled 755 AC Drive or Air Cooled 755 AC Packaged Drive configurations in the same product range.
The related models are useful when selecting a drive according to the required motor current.
The 540 A model provides a lower-current option.
The 650 A, 750 A, and 770 A configurations move into higher-current applications.
The exact physical size and weight should be checked against the specific catalog configuration before installation.
The 20G1F3C540LNDNNNNN is a closely related lower-current configuration.
It is useful for applications where the motor does not require the full 585 A capacity.
It can therefore be considered when the motor’s actual full-load current and duty fall below the 585 A configuration requirements.
The two models share the same general high-power PowerFlex 755 platform.
The 20G1F3C650LNDNNNNN provides a higher current class than the 585 A model.
It may be appropriate when the motor operates at a higher current or when application requirements demand additional drive capacity.
The higher current rating also means that the electrical installation needs to be evaluated accordingly.
Cable sizing, protective equipment, power distribution, thermal management, and mechanical installation should all be reviewed.
The 20G1F3C750LNDNNNNN is another high-current configuration within the same family.
It is intended for larger motor applications.
This type of configuration can be considered when the motor and machine load exceed the practical range of the 585 A model.
The 20G1F3C770LNDNNNNN represents another step upward in current capacity.
It is relevant to very large industrial motor applications.
Because the power level is substantial, the complete electrical system should be engineered specifically for the drive rather than treating it as a simple drop-in replacement.
The following models represent different parts of the Allen-Bradley industrial drive range.
They are not all direct replacements for the 20G1F3C585LNDNNNNN.
| Model | Product Family | Voltage Class | Current / Capacity | Product Type | Dimensions | Weight kg |
|---|---|---|---|---|---|---|
| 25B-D010N114 | PowerFlex 525 | 480 V class | Small-current class | Compact AC Drive | Approx. 200 × 90 × 150 mm | Approx. 2–5 kg |
| 25C-D010N114 | PowerFlex 527 | 480 V class | Small-current class | Compact AC Drive | Approx. 200 × 90 × 150 mm | Approx. 2–5 kg |
| 20F1ANE033JA0NNNNN | PowerFlex 753 | 480 V class | Medium-current class | Industrial AC Drive | Configuration dependent | Approx. 20–40 kg |
| 20G1F3C540LNDNNNNN | PowerFlex 755 | 400 V class | 540 A class | High-Power AC Drive | Configuration dependent | Configuration dependent |
| 20G1F3C750LNDNNNNN | PowerFlex 755 | 400 V class | 750 A class | High-Power AC Drive | Configuration dependent | Configuration dependent |
The first two models are compact drives intended for much smaller motor applications.
The PowerFlex 753 occupies a larger industrial-drive category.
The PowerFlex 755 high-current configurations are intended for substantially larger machinery.
The PowerFlex 525 is a compact drive family.
It is designed for smaller industrial machinery and generally requires considerably less physical space than the 20G1F3C585LNDNNNNN.
Typical applications include small conveyors, pumps, fans, packaging machines, machine tools, and general-purpose machinery.
The 20G1F3C585LNDNNNNN is designed for an entirely different power range.
Its 585 A normal-duty rating and large-frame construction make it suitable for major industrial motor systems.
The PowerFlex 753 is a larger industrial drive family.
It can be used for demanding motor-control applications and provides substantially more capability than compact drives.
The PowerFlex 755 platform is particularly useful when advanced control, regenerative operation, and large motor applications are involved.
The exact choice between different drive families depends on the machine architecture and required control functions.
For heavy industrial machinery, the main advantages of this configuration include high current capacity, regenerative operation, large-frame construction, advanced motor control, and low-harmonic architecture.
These characteristics make the product suitable for equipment where both electrical performance and mechanical control are important.
For example, a large conveyor may need high torque during starting.
A crane may need regenerative operation during lowering.
A pump may need continuously adjustable speed.
A large fan may need variable airflow.
A process machine may require stable motor speed.
The same drive platform can therefore be applied across many different types of industrial machinery.
Energy recovery is especially relevant to machines with frequent deceleration.
When a large motor slows down, the mechanical energy stored in the rotating equipment is converted back into electrical energy.
In a regenerative system, this energy can be transferred back to the electrical network under appropriate operating conditions.
This can reduce the amount of energy that needs to be dissipated as heat.
It can also make the drive more suitable for machines with repeated braking cycles.
High-power motor drives can have a significant effect on the facility’s electrical network.
This is one reason low-harmonic drive architectures are useful.
The electrical system should nevertheless be evaluated as a whole.
Transformers, switchgear, generators, other drives, capacitor banks, and sensitive equipment can all influence the final power-quality result.
The drive should therefore be integrated into the overall electrical design rather than evaluated in isolation.
| Selection Item | Recommended Check |
|---|---|
| Motor Voltage | Confirm motor nameplate voltage |
| Motor Current | Confirm full-load current |
| Motor Power | Confirm kW / horsepower |
| Duty | Confirm light, normal, or heavy duty |
| Overload | Confirm required overload capability |
| Supply | Confirm 400 VAC three-phase system |
| Regeneration | Determine whether braking energy is significant |
| Harmonics | Determine plant power-quality requirements |
| Cooling | Confirm adequate airflow |
| Environment | Check temperature, dust, moisture and chemicals |
| Installation | Confirm floor mounting |
| Frame | Confirm Frame 8C requirements |
| Weight | Plan mechanical handling |
| Dimensions | Confirm exact mechanical drawing |
| Cable Size | Confirm incoming and motor cable requirements |
| Grounding | Confirm grounding and bonding |
| Control | Confirm automation interface |
| Feedback | Confirm feedback requirements |
| Safety | Confirm complete machine safety system |
The 20G1F3C585LNDNNNNN should be treated as major industrial electrical equipment.
Its large-frame construction means that installation should be planned before delivery.
The floor should be checked for adequate loading capacity.
The route from unloading location to final installation position should be checked.
Doors and passages should be large enough to accommodate the equipment.
Any lifting equipment should be properly rated.
Electrical connections should be made only after the equipment has been correctly positioned and secured.
Service clearance should also be considered.
Large drives need enough working space for technicians to inspect, test, and maintain the equipment.
A high-power air-cooled drive depends heavily on effective thermal management.
Cooling fans should be checked regularly.
Airflow paths should remain clean.
Dust accumulation should be controlled.
Electrical connections should be inspected for signs of heating.
Fault history should be reviewed when troubleshooting recurring problems.
Unexpected over-temperature conditions should not be ignored.
Repeated trips can indicate problems with the motor, mechanical load, electrical supply, cooling system, or drive configuration.
A preventive maintenance program can help identify these issues before they become serious equipment failures.
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Model | 20G1F3C585LNDNNNNN |
| Product Type | Air-Cooled AC Packaged Drive |
| Input Voltage | 400 VAC class |
| Input Phase | Three Phase |
| Normal-Duty Current | 585 A |
| DC Normal-Duty Current | 607 A |
| Light-Duty Rating | Approx. 355 kW / 650 A class |
| Normal-Duty Rating | Approx. 315 kW / 585 A |
| Heavy-Duty Rating | Approx. 250 kW / 472 A class |
| Cooling | Air Cooled |
| Regeneration | AFE Regenerative |
| Harmonic Architecture | Low Harmonic |
| Mounting | Floor Mounted |
| Frame | 8C |
| Enclosure | Type 1 / IP21 |
| HIM | Door Mounted |
| Control | TotalFORCE |
| Dimensions | Configuration dependent |
| Weight kg | Configuration dependent |
| Application | Large Industrial Motor Control |
The Allen-Bradley 20G1F3C585LNDNNNNN is a high-power PowerFlex 755 air-cooled packaged AC drive intended for demanding industrial motor-control applications.
Its key electrical characteristics include a 400 VAC three-phase class, 585 A normal-duty current, and approximately 315 kW normal-duty capacity. The configuration is also associated with a higher light-duty rating and a lower heavy-duty rating, allowing the same drive class to address different machine operating conditions.
The product’s AFE regenerative architecture is one of its most useful characteristics.
It makes the drive suitable for applications where substantial energy is returned to the drive during braking.
This is particularly relevant to cranes, hoists, elevators, large conveyors, test systems, and machines with high rotating inertia.
The low-harmonic architecture is another important characteristic.
Large industrial drives can have a significant influence on the electrical network, so harmonic management becomes increasingly important as motor power increases.
The PowerFlex 755 platform also provides advanced control capabilities suitable for applications requiring controlled speed, torque, acceleration, and deceleration.
The Frame 8C floor-mounted construction makes this a major industrial installation rather than a compact control-panel VFD. The configuration is associated with Type 1/IP21 protection, air cooling, and a door-mounted HIM.
For mechanical planning, the exact height, width, depth, and shipping weight should be confirmed from the final mechanical documentation for the complete configured unit.
This is particularly important for a drive of this size because cabinet construction and options can affect the final dimensions and handling requirements.
From an application standpoint, the 20G1F3C585LNDNNNNN is well suited to large conveyors, cranes, hoists, pumps, fans, compressors, process equipment, material-handling systems, and other large industrial machines where high current, advanced motor control, regenerative operation, and controlled motor performance are required.
The most important selection criteria are the actual motor current, motor voltage, mechanical load, duty cycle, overload requirement, braking profile, electrical-system requirements, environmental conditions, and available installation space.
In short, the 20G1F3C585LNDNNNNN is a large-scale industrial PowerFlex 755 configuration intended for applications where a conventional small or medium-size VFD would not provide sufficient current capacity or system functionality.