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Allen-Bradley 20G1ALE295AN0NNNNN PowerFlex 755 AC Drive
1. Product Overview
The 20G1ALE295AN0NNNNN is a high-power, air-cooled AC drive from the PowerFlex 755 series, intended for demanding industrial motor-control applications where a conventional compact variable-frequency drive is not sufficient.
This model is built around a 295 A output-current rating and is designed for a 600 VAC, three-phase industrial power system. Its packaged construction uses a Type 1 / IP20, 800 mm deep MCC-style enclosure, making it suitable for centralized electrical rooms and larger industrial motor-control installations.
The drive is designed for large motors and process machinery, with approximate duty ratings of 350 HP for light duty, 300 HP for normal duty, and 250 HP for heavy duty.
The catalog configuration combines an air-cooled power section, AC input with precharge, no external DC terminals, embedded EtherNet/IP communication, filtered construction, and an AN0 configuration.
This makes the model particularly useful in applications where the motor is a major part of the production process and needs to be integrated with a PLC, HMI, supervisory system, or plant-wide industrial network.
The 20G1ALE295AN0NNNNN is therefore better viewed as a complete industrial motor-control component rather than simply a frequency converter.
2. Brand and Product Series
| Item | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 755 |
| Product Type | High-Power AC Drive |
| Catalog Number | 20G1ALE295AN0NNNNN |
| Drive Construction | Air-Cooled |
| Cooling Method | Forced Air |
| Rated Voltage | 600 VAC |
| Input Phase | Three Phase |
| Output Current | 295 A |
| Light-Duty Rating | 350 HP |
| Normal-Duty Rating | 300 HP |
| Heavy-Duty Rating | 250 HP |
| Enclosure | Type 1 / IP20 |
| Cabinet Style | 800 mm Deep MCC Style |
| Communication | Embedded EtherNet/IP |
| Input Configuration | AC Input with Precharge |
| External DC Terminals | None |
| Dynamic Braking | None |
| Filtering | Filtered |
| CM Configuration | AN0 |
| HIM Configuration | Blank / No HIM |
| Typical Installation | Industrial Electrical Room |
The PowerFlex 755 family is designed for larger industrial applications where motor capacity, control flexibility, networking, diagnostics, and system integration are important.
The 295 A version occupies a useful position within the family because it provides considerably more motor capacity than compact machine drives while remaining below the very large 400 A, 500 A, and 700 A-class configurations.
3. Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 20G1ALE295AN0NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Drive Type | AC Variable Frequency Drive |
| Input Voltage | 600 VAC |
| Input Phase | Three Phase |
| Output Current | 295 A |
| Light Duty | 350 HP |
| Normal Duty | 300 HP |
| Heavy Duty | 250 HP |
| Frame | Frame 7 class |
| Cooling | Forced Air / Air Cooled |
| Enclosure | Type 1 / IP20 |
| Cabinet Construction | 800 mm Deep MCC Style |
| Input Arrangement | AC Input with Precharge |
| External DC Terminals | None |
| Dynamic Braking | None |
| Filtering | Filtered |
| CM Configuration | AN0 |
| Communication | Embedded EtherNet/IP |
| HIM | Blank / No HIM |
| Typical Motor Type | Large Three-Phase AC Motor |
| Typical Applications | Pumps, Fans, Conveyors, Compressors, Process Machinery |
| Approx. Dimensions | Approx. 2453 × 600 × 800 mm* |
| Approx. Weight | Approx. 500–600 kg* |
*The dimensional and weight figures are practical planning values for this large MCC-style drive class. Final dimensions and shipping weight can vary with the supplied mechanical arrangement and options, so the actual mechanical documentation should be used for final installation, transportation, lifting, and foundation calculations.
4. Electrical Rating
The most important electrical characteristic of the 20G1ALE295AN0NNNNN is its 295 A output-current rating.
This places the drive in the large industrial motor-control category.
A 295 A drive can be used with substantial motors where a compact machine drive would not provide adequate current capacity.
Typical applications include:
- Large pumps
- Industrial fans
- Blowers
- Conveyors
- Compressors
- Process equipment
- Material-handling machines
- Large mixers
- Industrial ventilation systems
- Water-treatment equipment
The actual motor must always be checked by its nameplate current and required duty.
The horsepower figure provides a useful reference, but motor current is generally more important when confirming drive sizing.
5. 600 VAC Three-Phase Operation
The 20G1ALE295AN0NNNNN belongs to the 600 VAC class.
This is an important distinction from many 480 VAC industrial drives.
A 600 VAC-class drive is intended for industrial power systems where the motor and electrical distribution system are designed around this voltage range.
This type of system can be found in applications such as:
- Large industrial plants
- Heavy manufacturing
- Mining
- Process industries
- Large material-handling systems
- Industrial utilities
- Pumping systems
- Large ventilation equipment
The motor voltage, input voltage, transformer arrangement, and electrical distribution system should all be considered together during project engineering.
6. Horsepower and Duty Ratings
The model has three commonly referenced horsepower classifications.
| Duty Classification | Approximate Motor Rating |
|---|---|
| Light Duty | 350 HP |
| Normal Duty | 300 HP |
| Heavy Duty | 250 HP |
These ratings provide a useful starting point for motor selection.
However, the application determines which rating is actually appropriate.
For example, a large centrifugal pump may operate with a relatively predictable load, while a conveyor or crusher may experience much higher torque demands during acceleration and material loading.
A drive should therefore be selected using:
- Motor full-load current
- Motor voltage
- Required overload
- Acceleration requirements
- Deceleration requirements
- Load inertia
- Duty cycle
- Ambient temperature
- Process conditions
rather than horsepower alone.
7. Frame 7 Construction
The 295 A configuration is associated with the larger PowerFlex 755 frame structure used for this class of high-power drive.
The frame size affects the mechanical installation as well as the electrical characteristics.
Important considerations include:
- Cabinet dimensions
- Power-terminal arrangement
- Cooling airflow
- Cable routing
- Maintenance access
- Service clearance
- Floor loading
- Transportation
- Lifting
For a large industrial drive, these mechanical considerations should be addressed at the beginning of the project.
8. Air-Cooled and Forced-Air Design
The 20G1ALE295AN0NNNNN uses an air-cooled, forced-air arrangement.
Large variable-frequency drives generate heat in the power semiconductor section and other electrical components.
Forced-air cooling moves this heat away from the power electronics.
The installation environment should therefore provide:
- Adequate ventilation
- Clean cooling air
- Proper airflow
- Sufficient service clearance
- Suitable ambient temperature
- Regular inspection
- Appropriate dust management
This becomes especially important in industrial environments containing dust or airborne contaminants.
9. AC Input with Precharge
The drive uses AC input with precharge.
Large AC drives contain a substantial DC-link section.
When the drive is initially energized, the DC bus must be charged in a controlled manner.
The precharge system helps limit the initial charging current and allows the DC-link capacitors to reach the appropriate operating condition.
For a large industrial installation, the incoming power system should be designed together with:
- Input protection
- Disconnect equipment
- Grounding
- Short-circuit protection
- Cable sizing
- Transformer capacity
- Electrical coordination
10. No External DC Terminals
The catalog configuration does not provide external DC terminals.
This is an important distinction when considering:
- Common DC bus systems
- Regenerative applications
- External DC sources
- Shared DC-bus systems
- Specialized braking arrangements
The 20G1ALE295AN0NNNNN should therefore be treated as an AC-input drive configuration rather than assuming that it can be connected directly into every type of common-DC-bus architecture.
11. Embedded EtherNet/IP Communication
One of the practical strengths of the PowerFlex 755 platform is its ability to communicate with a larger industrial automation system.
The 20G1ALE295AN0NNNNN includes embedded EtherNet/IP communication.
This allows information such as the following to be exchanged with a control system:
- Start command
- Stop command
- Speed reference
- Frequency reference
- Motor current
- Motor speed
- Drive status
- Fault status
- Warning status
- Diagnostic information
- Process information
This is useful when the motor is part of an automated production process rather than a standalone machine.
12. Type 1 / IP20 Enclosure
The drive uses a Type 1 / IP20 enclosure arrangement.
This configuration is generally intended for controlled industrial environments such as:
- Electrical rooms
- Motor-control rooms
- Indoor industrial facilities
- Controlled automation areas
It is not intended to be treated as a weatherproof outdoor enclosure.
If the equipment must operate in a harsh environment, the overall installation may require a suitably protected electrical room or additional enclosure arrangement.
13. 800 mm Deep MCC-Style Construction
The 800 mm deep MCC-style construction is an important mechanical characteristic.
The depth should be considered when designing:
- Electrical-room layouts
- Cabinet lineups
- Cable trenches
- Cable-entry systems
- Conduit routing
- Door clearance
- Maintenance access
- Cooling airflow
- Transportation paths
For a large drive, cable bending radius can also become a major consideration because power conductors can be physically large.
14. Filtered Configuration
The drive is configured as a filtered unit.
Filtering is important in variable-frequency-drive systems because high-frequency switching can produce conducted and radiated electrical noise.
The complete installation should also consider:
- Motor cable construction
- Motor cable length
- Grounding
- Shielding
- Bonding
- Control cable routing
- Communication cable routing
- Cabinet grounding
- Separation between power and signal wiring
Good EMC performance depends on the complete electrical installation, not just the drive itself.
15. AN0 Configuration
The AN0 designation is an important part of the complete catalog number.
It differentiates this model from related configurations such as JN0, JN2, or other option combinations.
When replacing a drive, the full catalog number should therefore be checked.
A drive with the same current rating and horsepower rating may still have a different electrical configuration.
This is particularly important for projects involving:
- Existing equipment replacement
- Electrical-room upgrades
- Motor-control-center modernization
- Spare-drive procurement
- System standardization
16. Dynamic Braking
The basic configuration does not include dynamic braking.
This is important for applications where a large rotating load must be stopped quickly.
Examples include:
- High-inertia conveyors
- Large fans
- Centrifugal machines
- Material-handling systems
- Large rotating process equipment
If rapid deceleration is required, the braking energy and stopping cycle should be calculated.
Depending on the application, a different drive configuration or an appropriately engineered braking arrangement may be required.
17. Blank / No HIM Configuration
The base catalog configuration is supplied without a standard local HIM.
This is useful for applications where the drive is controlled mainly from:
- PLC
- HMI
- SCADA
- Industrial Ethernet
- Central control room
The absence of a local HIM does not prevent the drive from participating in a centralized control architecture.
For applications requiring local operator access, an appropriate interface arrangement can be considered separately.
18. Approximate Dimensions and Weight
Physical size is an important consideration for this model because it uses an MCC-style high-power enclosure.
| Mechanical Parameter | Approximate Value |
|---|---|
| Model | 20G1ALE295AN0NNNNN |
| Frame | Frame 7 class |
| Approx. Height | 2453 mm |
| Approx. Width | 600 mm |
| Approx. Depth | 800 mm |
| Approx. Weight | 500–600 kg |
| Enclosure | Type 1 / IP20 |
| Cabinet Style | 800 mm Deep MCC Style |
| Cooling | Forced Air |
| Installation | Floor-Mounted |
| Application Environment | Controlled Industrial Area |
These dimensions and weight figures should be treated as preliminary engineering values.
For final construction, the supplied mechanical drawing should take precedence.
The final shipping weight can also change depending on packaging and selected factory options.
19. Mechanical Installation Requirements
The drive should be installed in a location that allows adequate:
- Cooling airflow
- Front access
- Electrical access
- Maintenance access
- Cable routing
- Door movement
- Isolation
- Transportation
- Lifting
The floor should be capable of supporting the equipment weight.
The installation route should also be checked before delivery.
For a large MCC-style drive, the complete transportation route may need to be reviewed, including:
- Factory exit
- Truck access
- Loading dock
- Building entrance
- Door width
- Turning radius
- Elevator capacity
- Final equipment-room access
20. Typical Product Applications
| Application | Typical Requirement |
|---|---|
| Large Water Pump | Flow and pressure regulation |
| Industrial Fan | Variable airflow |
| Large Blower | Speed regulation |
| Conveyor | Controlled acceleration |
| Compressor | Variable-speed operation |
| Mixer | Torque and speed control |
| Mining Equipment | High-power motor control |
| Cement Equipment | Process motor control |
| Aggregate Equipment | Heavy-duty motor operation |
| Water Treatment | Pump and blower control |
| Material Handling | Smooth starting and stopping |
| Process Machinery | Controlled motor speed |
21. Pump Applications
Large pumps are a common application for high-power variable-frequency drives.
The motor speed can be adjusted to match process demand rather than running continuously at one fixed speed.
Typical applications include:
- Industrial water transfer
- Cooling-water circulation
- Process pumping
- Wastewater systems
- Water treatment
- Irrigation
- Industrial utility pumps
- Chemical process systems
The drive can receive a speed reference from the plant control system while returning operating information such as motor current, speed, and drive status.
22. Fan and Blower Applications
Large industrial fans often operate under changing airflow requirements.
A variable-frequency drive can adjust the motor speed to match the actual process requirement.
Typical applications include:
- Factory ventilation
- Industrial exhaust
- Dust collection
- Furnace ventilation
- Large air-handling systems
- Mining ventilation
- Process cooling
- Cement facilities
The ability to vary motor speed can also reduce mechanical stress associated with repeated direct-on-line starting.
23. Conveyor Applications
Conveyors can present demanding starting conditions, particularly when heavily loaded.
A large variable-frequency drive can provide a controlled acceleration ramp.
This can reduce sudden stress on:
- Gearboxes
- Couplings
- Conveyor belts
- Drive pulleys
- Shafts
- Bearings
- Mechanical structures
The drive can also be integrated into a larger automation system so that conveyor speed follows the production process.
24. Compressor Applications
Large compressors can require considerable motor current during acceleration and operation.
Variable-speed control can be used where the compressor process permits speed adjustment.
Potential applications include:
- Industrial compressed-air systems
- Process gas systems
- Large refrigeration equipment
- Production facilities
- Utility systems
- Process plants
The compressor and motor manufacturer’s requirements should be checked before final drive selection.
25. Mining Applications
The 600 VAC class and high-power configuration can be useful in heavy industrial and mining applications.
Potential equipment includes:
- Conveyors
- Crushers
- Fans
- Blowers
- Pumps
- Dewatering equipment
- Material-processing machinery
- Auxiliary process equipment
Mining environments can be demanding because of dust, temperature variation, vibration, and continuous operation.
The Type 1/IP20 drive configuration should therefore normally be installed in a suitably controlled electrical environment.
26. Cement and Aggregate Applications
Cement and aggregate facilities use many large motor loads.
Examples include:
- Crushers
- Conveyors
- Fans
- Blowers
- Pumps
- Feeders
- Processing machinery
- Dust-collection equipment
The drive can provide controlled speed while allowing the motor to become part of the plant automation system.
This is particularly useful when process speed must change according to production conditions.
27. Process Machinery Applications
The PowerFlex 755 platform can be used in larger process machines where motor speed and torque need to be controlled.
Typical equipment includes:
- Large mixers
- Process pumps
- Large fans
- Material-processing machines
- Industrial production machinery
- Large rotating equipment
- Heavy-duty process equipment
The drive’s communication capabilities also allow process information to be exchanged with the supervisory control system.
28. Main Product Advantages
28.1 High 295 A Current Capacity
The 295 A rating provides substantial current capacity for large industrial motors.
It is significantly above the range normally associated with compact machine drives.
28.2 600 VAC Industrial Compatibility
The 600 VAC class makes the drive suitable for industrial power systems that operate at this voltage level.
28.3 Large Motor Capacity
The approximate 350 HP light-duty, 300 HP normal-duty, and 250 HP heavy-duty ratings cover a substantial range of industrial motors.
28.4 Embedded EtherNet/IP
Integrated networking makes it easier to connect the drive to an industrial automation system.
28.5 Air-Cooled Construction
Forced-air cooling provides a practical method for removing heat from the high-power electrical section.
28.6 MCC-Style Installation
The 800 mm deep MCC-style construction is suitable for centralized electrical rooms and large motor-control installations.
28.7 AC Precharge
The precharge system supports controlled energization of the high-power DC link.
28.8 Filtered Configuration
The filtered configuration is useful for installations where electromagnetic compatibility needs to be addressed as part of the electrical design.
28.9 Flexible Application Range
The drive can be used in pumps, fans, conveyors, compressors, mining equipment, process machines, and material-handling systems.
28.10 Centralized Control
The drive can be integrated into a larger PLC and industrial Ethernet architecture, allowing centralized control and monitoring.
29. Motor Selection Considerations
The motor should be selected using actual nameplate information.
| Motor Parameter | Why It Matters |
|---|---|
| Motor Voltage | Must be compatible with drive output |
| Full-Load Current | Primary drive-sizing reference |
| Motor Power | Determines approximate drive class |
| Rated Frequency | Determines operating range |
| Rated Speed | Important for process control |
| Motor Type | Must be compatible with control method |
| Service Factor | Useful for load assessment |
| Starting Torque | Important for heavy loads |
| Peak Torque | Important for shock loads |
| Duty Cycle | Important for thermal capacity |
| Encoder Requirement | Relevant to certain applications |
| Cable Length | Important for installation planning |
The actual motor current should be compared with the drive’s applicable duty rating.
30. Electrical Installation Planning
For a 295 A high-power drive, the electrical installation should be planned carefully.
Important items include:
- Incoming supply
- Input protection
- Disconnect equipment
- Grounding
- Power conductors
- Motor conductors
- Control wiring
- Network wiring
- EMC
- Short-circuit coordination
- Cooling
- Cabinet ventilation
The input and motor cables can be substantially larger than those used with compact drives.
Cable termination and bending radius should therefore be considered during cabinet-layout design.
31. Grounding and EMC Considerations
A variable-frequency drive generates high-frequency switching components.
Correct grounding and cable routing are therefore important.
The installation should consider:
- Motor grounding
- Cabinet bonding
- Power-cable routing
- Control-cable separation
- Communication-cable separation
- Shielding
- Cable length
- EMC filtering
- Grounding-system characteristics
The drive’s filtered configuration supports the overall EMC strategy, but correct installation practices remain essential.
32. Maintenance Considerations
Large industrial drives should be included in a planned preventive-maintenance program.
Maintenance activities can include:
- Checking cooling fans
- Inspecting airflow
- Removing dust
- Inspecting electrical connections
- Checking cabinet ventilation
- Reviewing drive fault history
- Checking network communication
- Monitoring operating temperature
- Reviewing motor current
- Inspecting wiring
- Checking abnormal alarms
Cooling-system maintenance is especially important because the drive operates at a relatively high power level.
33. Environmental Considerations
The actual installation environment can have a significant effect on drive service life.
Important factors include:
- Ambient temperature
- Dust
- Humidity
- Condensation
- Ventilation
- Vibration
- Electrical disturbances
- Contamination
A Type 1/IP20 configuration should normally be installed in an environment where the drive is protected from direct exposure to water and severe outdoor conditions.
34. Energy and Process Control
Variable-speed control can be useful where motor speed needs to follow process demand.
For example:
A pump may not need full speed during low-flow conditions.
A fan may not need full speed when ventilation demand is low.
A conveyor may need different speeds depending on material throughput.
A process mixer may require different speeds during different stages of production.
The drive provides the motor-control mechanism needed to adjust speed according to those process requirements.
Actual energy savings depend on the machine, process, operating schedule, and mechanical system.
35. Five Recommended Related PowerFlex 755 Models
The following models are useful for comparison because they are close in the PowerFlex 755 high-power product range.
| Model | Current | Light Duty | Normal Duty | Heavy Duty | Voltage Class | Main Relationship |
|---|---|---|---|---|---|---|
| 20G1ALF265AN0NNNNN | 265 A | 315 kW | 250 kW | 200 kW | 600 VAC | Slightly lower-current related model |
| 20G1ALE295JN0NNNNN | 295 A | 350 HP | 300 HP | 250 HP | 600 VAC | Same current, alternate configuration |
| 20G1ALF330AN0NNNNN | 330 A | 355 kW | 315 kW | 250 kW | 600 VAC | Higher-current related model |
| 20G1ALE355AN0NNNNN | 355 A | 400 HP | 350 HP | 300 HP | 600 VAC | Higher-current HP-class model |
| 20G1ALE395AN0NNNNN | 395 A | 450 HP | 400 HP | 350 HP | 600 VAC | Higher-capacity related model |
The 295 A model sits between the 265 A and 330 A configurations in this group.
When selecting between these models, motor current and actual duty should be considered before horsepower.
36. Current-Rating Comparison
| Model | Output Current | Light Duty | Normal Duty | Heavy Duty |
|---|---|---|---|---|
| 20G1ALF265AN0NNNNN | 265 A | 315 kW | 250 kW | 200 kW |
| 20G1ALE295AN0NNNNN | 295 A | 350 HP | 300 HP | 250 HP |
| 20G1ALF330AN0NNNNN | 330 A | 355 kW | 315 kW | 250 kW |
| 20G1ALE355AN0NNNNN | 355 A | 400 HP | 350 HP | 300 HP |
| 20G1ALE395AN0NNNNN | 395 A | 450 HP | 400 HP | 350 HP |
The table demonstrates the progression of current capacity within the same general high-power product family.
37. Same-Current Configuration Comparison
| Model | Current | Voltage | Enclosure | Cooling | Input | Configuration |
|---|---|---|---|---|---|---|
| 20G1ALE295AN0NNNNN | 295 A | 600 VAC | Type 1 / IP20 | Air Cooled | AC + Precharge | AN0 |
| 20G1ALE295JN0NNNNN | 295 A | 600 VAC | Type 1 / IP20 | Air Cooled | AC + Precharge | JN0 |
| 20G1ALE295JN2NNNNN | 295 A | 600 VAC | Type 1 / IP20 | Air Cooled | AC + Precharge | JN2 |
| 20G1ALE295JN4NNNNN | 295 A | 600 VAC | Type 1 / IP20 | Air Cooled | AC + Precharge | JN4 |
This comparison is useful when ordering replacement equipment.
The current rating is identical, but the catalog suffix identifies different configurations.
Therefore, a replacement should not be selected only by the 295 A rating.
38. Five Same-Brand Popular Models
The following models provide a broader comparison across compact, machine-oriented, industrial, and high-power drive categories.
| Model | Series | General Application | Main Parameter Class |
|---|---|---|---|
| 25B-D010N104 | PowerFlex 525 | General-purpose machine control | Compact AC drive |
| 25C-D010N103 | PowerFlex 527 | Networked machine control | Compact machine drive |
| 20F11NC2P1JA0NNNNN | PowerFlex 753 | Industrial motor control | Medium/large industrial class |
| 20F11NC8P0JA0NNNNN | PowerFlex 753 | Large process equipment | Large industrial class |
| 20G1ALE295AN0NNNNN | PowerFlex 755 | Large industrial motors | 295 A / 600 VAC |
These products occupy different application and power ranges.
The smaller models are generally intended for machine-level applications, while the larger PowerFlex 753 and PowerFlex 755 configurations are better suited to larger industrial systems.
39. Same-Brand Model Comparison
| Model | Series | Application Level | Typical Installation | Communication Orientation |
|---|---|---|---|---|
| 25B-D010N104 | PowerFlex 525 | Small/medium machines | Compact cabinet | Industrial automation |
| 25C-D010N103 | PowerFlex 527 | Machine automation | Compact machine panel | Network-oriented |
| 20F11NC2P1JA0NNNNN | PowerFlex 753 | Industrial equipment | Industrial cabinet | Industrial automation |
| 20F11NC8P0JA0NNNNN | PowerFlex 753 | Large industrial | Large cabinet | Industrial automation |
| 20G1ALE295AN0NNNNN | PowerFlex 755 | High-power industrial | MCC-style electrical room | Embedded EtherNet/IP |
40. Application Comparison
| Application | Suitable Drive Class | Reason |
|---|---|---|
| Small Conveyor | Compact drive | Lower motor current |
| Machine Fan | Compact drive | Moderate motor power |
| Industrial Pump | Industrial drive | Higher motor capacity |
| Large Pump | PowerFlex 755 class | High current |
| Large Conveyor | PowerFlex 755 class | Starting and load requirements |
| Compressor | Industrial/high-power drive | Significant motor demand |
| Mining Conveyor | High-power drive | Heavy mechanical load |
| Cement Equipment | High-power drive | Large continuous-duty motor |
| Large Blower | Industrial/high-power drive | Variable airflow |
| Process Machinery | PowerFlex 755 class | Flexible motor control |
41. Benefits for Pumping Systems
For a large pumping system, the drive can provide:
- Variable speed
- Controlled acceleration
- Controlled deceleration
- Process integration
- Motor monitoring
- Fault monitoring
- Network communication
- Flexible operating points
This can make the motor easier to integrate with pressure and flow control strategies.
42. Benefits for Conveyor Systems
For conveyors, the main benefits can include:
- Smooth acceleration
- Adjustable speed
- Reduced mechanical shock
- Process synchronization
- Centralized monitoring
- Fault reporting
- Controlled stopping
The exact acceleration profile should be selected according to the mechanical system.
43. Benefits for Large Fans
For large fans, the drive can regulate motor speed according to airflow demand.
This can be useful in:
- Industrial ventilation
- Dust collection
- Cooling systems
- Furnace systems
- Mining ventilation
- Large building ventilation
The variable-speed approach can also provide more flexible process control than fixed-speed operation.
44. Benefits for Process Plants
In a process plant, motor speed often has a direct relationship with production.
A drive such as the 20G1ALE295AN0NNNNN can become part of the process-control architecture.
For example:
A PLC can send a speed reference.
The drive can control the motor.
The drive can return current and status information.
The control system can use that information to monitor production.
This type of integration is one of the main reasons high-power networked AC drives are used in modern industrial plants.
45. Replacement and Compatibility Checklist
Before replacing an existing unit, verify:
| Item | Check |
|---|---|
| Complete Catalog Number | Confirm |
| Motor Voltage | Confirm |
| Motor Current | Confirm |
| Motor HP | Confirm |
| Duty Rating | Confirm |
| Input Voltage | Confirm |
| Input Frequency | Confirm |
| Frame Size | Confirm |
| Enclosure Type | Confirm |
| Filtering | Confirm |
| CM Configuration | Confirm |
| Dynamic Braking | Confirm |
| HIM Requirement | Confirm |
| Communication | Confirm |
| Cabinet Depth | Confirm |
| Cooling | Confirm |
| Cable Arrangement | Confirm |
| Grounding | Confirm |
| Mechanical Dimensions | Confirm |
| Weight | Confirm |
This is particularly important when replacing a PowerFlex 755 drive with another catalog number from the same family.
46. Mechanical Planning Table
| Mechanical Parameter | Approximate Planning Value |
|---|---|
| Model | 20G1ALE295AN0NNNNN |
| Frame | Frame 7 class |
| Height | Approx. 2453 mm |
| Width | Approx. 600 mm |
| Depth | 800 mm |
| Weight | Approx. 500–600 kg |
| Enclosure | Type 1 / IP20 |
| Cabinet Style | 800 mm Deep MCC Style |
| Cooling | Forced Air |
| Installation | Floor Mounted |
| Service Access | Required |
| Airflow | Must Remain Clear |
| Floor Capacity | Must Support Equipment |
| Transportation | Heavy Equipment Handling |
The mechanical values should be treated as preliminary planning data.
The final supplied configuration should be measured or checked against its mechanical documentation before fabrication or installation.
47. Electrical Planning Table
| Electrical Parameter | Specification |
|---|---|
| Model | 20G1ALE295AN0NNNNN |
| Voltage Class | 600 VAC |
| Input Phase | Three Phase |
| Output Current | 295 A |
| Light Duty | 350 HP |
| Normal Duty | 300 HP |
| Heavy Duty | 250 HP |
| Cooling | Forced Air |
| Input | AC with Precharge |
| External DC Terminals | None |
| Dynamic Braking | None |
| Filtering | Filtered |
| Communication | Embedded EtherNet/IP |
| Enclosure | Type 1 / IP20 |
| Cabinet Depth | 800 mm |
| CM Configuration | AN0 |
48. Advantages for Maintenance Teams
The drive’s industrial architecture can help maintenance teams monitor important operating conditions.
Useful information can include:
- Current
- Speed
- Fault status
- Warning status
- Communication status
- Operating condition
- Drive status
The ability to integrate the drive into a central control network can reduce the need for technicians to physically inspect every drive for basic operating information.
For large industrial plants, centralized diagnostics can be especially useful.
49. Advantages for System Integrators
For system integrators, the PowerFlex 755 platform provides a structured way to incorporate a large motor into a plant automation architecture.
The drive can sit between:
Industrial Power System → AC Drive → Motor → Mechanical Process
while also communicating with:
PLC → Industrial Network → HMI / Supervisory System
This creates a complete motor-control loop.
The drive is therefore not only responsible for converting electrical power but also for providing the control interface between the motor and the automation system.
50. Advantages for Large Electrical Installations
The MCC-style construction is useful where several high-power motor controllers are installed in a centralized electrical area.
Potential benefits include:
- Organized cabinet layout
- Centralized maintenance
- Easier cable management
- Consistent drive architecture
- Centralized network connections
- Easier equipment identification
- Simplified maintenance planning
- Better integration with electrical-room design
The physical size of the cabinet must still be considered carefully.
51. Important Selection Notes
The 20G1ALE295AN0NNNNN should be selected according to the actual motor and process.
Important checks include:
- Motor full-load current.
- Motor voltage.
- Motor horsepower.
- Light-, normal-, or heavy-duty operation.
- Required acceleration time.
- Required deceleration time.
- Motor inertia.
- Braking requirements.
- Ambient temperature.
- Cooling requirements.
- Cable length.
- Grounding arrangement.
- Communication requirements.
- Cabinet dimensions.
- Maintenance clearance.
A correct selection process prevents the common mistake of matching only the horsepower number.
52. Five Related Models – Final Comparison
| Model | Current | Voltage | LD | ND | HD | Enclosure / Style |
|---|---|---|---|---|---|---|
| 20G1ALF265AN0NNNNN | 265 A | 600 VAC | 315 kW | 250 kW | 200 kW | Type 1 / IP20 MCC |
| 20G1ALE295AN0NNNNN | 295 A | 600 VAC | 350 HP | 300 HP | 250 HP | Type 1 / IP20 MCC |
| 20G1ALF330AN0NNNNN | 330 A | 600 VAC | 355 kW | 315 kW | 250 kW | Type 1 / IP20 MCC |
| 20G1ALE355AN0NNNNN | 355 A | 600 VAC | 400 HP | 350 HP | 300 HP | Type 1 / IP20 MCC |
| 20G1ALE395AN0NNNNN | 395 A | 600 VAC | 450 HP | 400 HP | 350 HP | Type 1 / IP20 MCC |
53. Five Same-Brand Models – Final Comparison
| Model | Series | Voltage / Class | Typical Application | General Size Class |
|---|---|---|---|---|
| 25B-D010N104 | PowerFlex 525 | Low/medium-power class | Machines, pumps, fans | Compact |
| 25C-D010N103 | PowerFlex 527 | Machine-drive class | Automated machines | Compact |
| 20F11NC2P1JA0NNNNN | PowerFlex 753 | Industrial class | Industrial machinery | Medium/Large |
| 20F11NC8P0JA0NNNNN | PowerFlex 753 | Large industrial class | Process equipment | Large |
| 20G1ALE295AN0NNNNN | PowerFlex 755 | 600 VAC / 295 A | Large industrial motors | MCC-style high power |
54. Complete Technical Summary
| Category | Specification |
|---|---|
| Model | 20G1ALE295AN0NNNNN |
| Brand | Allen-Bradley |
| Series | PowerFlex 755 |
| Product Type | High-Power AC Drive |
| Voltage | 600 VAC |
| Phase | Three Phase |
| Output Current | 295 A |
| Light Duty | 350 HP |
| Normal Duty | 300 HP |
| Heavy Duty | 250 HP |
| Frame | Frame 7 class |
| Cooling | Air Cooled / Forced Air |
| Enclosure | Type 1 / IP20 |
| Cabinet Style | 800 mm Deep MCC Style |
| Input | AC Input with Precharge |
| External DC Terminals | None |
| Dynamic Braking | None |
| Filtering | Filtered |
| Configuration | AN0 |
| Communication | Embedded EtherNet/IP |
| HIM | Blank / No HIM |
| Approx. Dimensions | 2453 × 600 × 800 mm |
| Approx. Weight | 500–600 kg |
| Typical Applications | Pumps, Fans, Conveyors, Compressors, Mining, Cement, Process Machinery |
55. Final Product Description
The 20G1ALE295AN0NNNNN is a high-power Allen-Bradley PowerFlex 755 AC drive designed for large industrial motor-control applications.
Its 295 A output-current rating and 600 VAC three-phase voltage class make it suitable for substantial industrial motors and process equipment.
The approximate duty classifications are 350 HP for light duty, 300 HP for normal duty, and 250 HP for heavy duty.
The drive uses an air-cooled, forced-air architecture and is packaged in a Type 1/IP20, 800 mm deep MCC-style configuration.
This construction makes it appropriate for controlled industrial electrical rooms and centralized motor-control installations.
The embedded EtherNet/IP communication capability allows the drive to communicate with a plant automation system.
This is particularly useful when the motor is part of a larger process such as pumping, conveying, ventilation, compression, material handling, or production machinery.
The AC input with precharge provides a controlled method of energizing the drive’s DC-link section, while the absence of external DC terminals defines the basic AC-input architecture of this configuration.
The drive’s filtered construction is also useful in industrial installations where electromagnetic compatibility is part of the overall electrical design.
The AN0 configuration is another important part of the catalog number.
When selecting a replacement or spare unit, the entire catalog number should be checked instead of simply looking for another 295 A drive.
The model is particularly suitable for applications where a smaller compact drive does not provide enough current capacity, while a much larger 400 A or 500 A-class drive would be unnecessary.
Typical applications include large water pumps, industrial fans, blowers, conveyors, compressors, mining machinery, cement equipment, aggregate systems, material-handling machinery, and large process machines.
For mechanical planning, an approximate installation envelope of 2453 × 600 × 800 mm and an approximate weight of 500–600 kg can be used as preliminary values.
Because the final cabinet configuration and shipping arrangement can affect dimensions and weight, the actual mechanical documentation should be used for final engineering.
From a maintenance perspective, the combination of centralized communication, drive status information, fault reporting, and industrial networking makes the drive suitable for plants where motor-control information needs to be available from a central control system.
From a system-design perspective, the 20G1ALE295AN0NNNNN provides a useful balance between large-motor capacity and the broader control capabilities of the PowerFlex 755 platform.
The related 265 A, 330 A, 355 A, and 395 A models provide additional options when the motor current or duty requirements are different.
The same-brand PowerFlex 525, PowerFlex 527, PowerFlex 753, and PowerFlex 755 models cover a much wider range of motor-control applications, from compact machines to large industrial equipment.
Overall, the 20G1ALE295AN0NNNNN is a substantial industrial AC drive intended for large three-phase motors, with 295 A output capacity, 600 VAC operation, approximately 350/300/250 HP duty classifications, forced-air cooling, Type 1/IP20 MCC-style construction, AC precharge, embedded EtherNet/IP, and filtered AN0 configuration.
For engineering, purchasing, replacement, and maintenance work, the most important selection points are the motor’s actual full-load current, voltage, duty cycle, braking requirements, environmental conditions, communication requirements, cabinet dimensions, and the complete catalog-number configuration.