Company Information
E-mail		[email protected]
Mobile		+8615980777398
Whatsapp		+8615980777398
WeChat		15980777398

Allen-Bradley 20G1ALF460AN0NNNNN PowerFlex 755 AC Drive

1. Product Introduction

The Allen-Bradley 20G1ALF460AN0NNNNN is a high-power AC variable-frequency drive designed for large industrial motor-control applications.

This model belongs to the PowerFlex 755 series and is configured for 690 VAC three-phase power, with a rated current of 460 A. It uses an air-cooled Frame 8 construction and is designed for large industrial motors requiring adjustable speed, controlled acceleration and deceleration, network communication, and reliable continuous operation.

The model is configured with an IP20 / NEMA Type 1, 800 mm deep MCC-style enclosure, embedded EtherNet/IP communication, filtered input, AC input with precharge, no DC terminals, and a CM jumper installed configuration.

The published power ratings for this 460 A configuration are approximately 500 kW for light duty, 450 kW for normal duty, and 375 kW for heavy duty. These ratings place the model in the high-power section of the PowerFlex 755 family and make it suitable for large pumps, fans, conveyors, blowers, compressors, process machinery, mining equipment, water-treatment systems, and other large industrial motor applications.

The 20G1ALF460AN0NNNNN is a floor-mounted industrial drive rather than a compact wall-mounted inverter. Its physical size and approximately 623 kg planning weight mean that mechanical handling, floor loading, ventilation, cable routing, and maintenance access should be considered during system design.

---

2. Brand and Series

Item	Specification
Brand	Allen-Bradley
Product family	PowerFlex
Series	PowerFlex 755
Product type	AC Variable Frequency Drive
Model	20G1ALF460AN0NNNNN
Configuration	Air-cooled 755 AC Drive
Frame	Frame 8
Voltage class	690 VAC
Phase	Three-phase
Rated current	460 A
Cooling	Air cooled / forced air
Enclosure	IP20 / NEMA Type 1
Cabinet style	MCC style
Communication	Embedded EtherNet/IP
Input	AC input with precharge
DC terminals	None
Input filtering	Filtered
CM configuration	CM jumper installed
Mounting	Floor mounted
Main application	Large industrial motor control

The exact model is identified as a PowerFlex 755 AC drive with embedded EtherNet/IP, forced-air cooling, AC input with precharge, no DC terminals, Type 1/IP20 800 mm deep MCC-style construction, 460 A current capacity, and 690 VAC three-phase input.

---

3. Complete Product Parameters

Parameter	Specification
Model	20G1ALF460AN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product type	High-power AC variable-frequency drive
Input voltage	690 VAC
Input phase	3 phase
Rated current	460 A
Light-duty rating	500 kW
Normal-duty rating	450 kW
Heavy-duty rating	375 kW
Cooling	Forced air / air cooled
Frame size	Frame 8
Enclosure	IP20 / NEMA Type 1
Cabinet style	MCC style
Cabinet depth	800 mm
Input type	AC input with precharge
DC terminals	None
Input filtering	Filtered
CM jumper	Installed
Dynamic braking	None
Communication	Embedded EtherNet/IP
HIM	Blank / no HIM
Mounting	Floor mounted
Approximate height	2453 mm
Approximate width	600 mm
Approximate depth	800 mm
Approximate weight	623 kg
Approximate height	96.6 in
Approximate width	23.6 in
Approximate depth	31.5 in
Approximate weight	1374 lb

The exact product configuration identifies the 460 A model as 500 kW light duty, 450 kW normal duty, and 375 kW heavy duty, with a 690 VAC three-phase input and Frame 8 construction.

---

4. Electrical Specification

The 20G1ALF460AN0NNNNN is designed for large three-phase industrial electrical systems operating at the 690 VAC voltage class.

Its 460 A rating provides considerable capacity for large industrial motors. The higher-voltage configuration is particularly relevant to large motor systems where high power needs to be transmitted through an industrial electrical distribution system.

Electrical Parameter	Specification
Model	20G1ALF460AN0NNNNN
Input voltage	690 VAC
Input phase	3 phase
Rated current	460 A
Input frequency	Industrial AC supply
Input type	AC with precharge
Precharge	Included
DC terminals	None
Input filter	Filtered
CM jumper	Installed
Dynamic braking	None
Cooling	Forced air
Frame	8
Communication	Embedded EtherNet/IP
Enclosure	IP20 / NEMA Type 1

The model is specified for 690 VAC, three-phase operation and includes an AC input with precharge, filtered input, and no DC terminals.

---

5. Motor Power Ratings

The 460 A model provides different power ratings depending on the required duty classification.

Duty Classification	Approximate Power Rating	Typical Load
Light Duty	500 kW	Variable-torque and less demanding loads
Normal Duty	450 kW	General industrial loads
Heavy Duty	375 kW	High-torque and demanding loads

The distinction between duty ratings is important when selecting a drive.

A motor operating a centrifugal fan may have very different current and overload requirements from a conveyor, crusher, mixer, or other high-torque machine.

The drive should therefore be selected according to the motor nameplate current and the actual load profile rather than simply matching the motor’s nominal kW value.

---

6. Current Capacity

The 460 A current rating is one of the most important characteristics of this model.

A high current rating allows the drive to be used with large motors where smaller PowerFlex configurations would not provide sufficient capacity.

Item	Value
Model	20G1ALF460AN0NNNNN
Rated current	460 A
Light-duty power	500 kW
Normal-duty power	450 kW
Heavy-duty power	375 kW
Voltage	690 VAC
Frame	8

The 460 A configuration sits above the 415 A version in the same 690 VAC Frame 8 range and below higher-current configurations such as the 500 A class.

This makes it useful for applications where a 415 A drive may be close to the required motor current but additional capacity is desired.

---

7. Mechanical Specifications

The 20G1ALF460AN0NNNNN is a large floor-mounted Frame 8 drive.

Mechanical Parameter	Specification
Model	20G1ALF460AN0NNNNN
Frame	8
Mounting	Floor mounted
Cabinet style	MCC style
Enclosure	IP20 / NEMA Type 1
Height	Approx. 2453 mm
Width	Approx. 600 mm
Depth	Approx. 800 mm
Weight	Approx. 623 kg
Height	Approx. 96.6 in
Width	Approx. 23.6 in
Depth	Approx. 31.5 in
Weight	Approx. 1374 lb
Cooling	Air cooled
Installation position	Upright

For the Frame 8 IP20/NEMA Type 1 MCC-style configuration, the practical planning dimensions are approximately 2453 × 600 × 800 mm, with an approximate weight of 623 kg.

These values should be treated as planning information. Final mechanical drawings should be checked before cabinet fabrication, transportation, lifting, floor-loading calculations, and installation.

---

8. Dimensions and Weight

The physical dimensions of this model are important because it is significantly larger than low-power wall-mounted variable-frequency drives.

Dimension / Weight	Specification
Model	20G1ALF460AN0NNNNN
Height	2453 mm
Width	600 mm
Depth	800 mm
Weight	623 kg
Height	96.6 in
Width	23.6 in
Depth	31.5 in
Weight	1374 lb
Frame	8
Enclosure	IP20 / NEMA Type 1
Cabinet arrangement	MCC style
Installation	Floor mounted

The approximate 623 kg weight should be included in mechanical design calculations.

Floor strength, transportation routes, lifting equipment, cabinet positioning, service access, and maintenance clearance should all be considered before installation.

---

9. Product Construction

The 20G1ALF460AN0NNNNN uses a large Frame 8 industrial architecture.

The drive is designed for floor-mounted installation and uses forced-air cooling.

The IP20 / NEMA Type 1 arrangement is intended for a controlled industrial environment rather than direct exposure to outdoor weather.

The 800 mm deep MCC-style configuration provides substantial internal space for the drive and associated electrical components while allowing integration into a larger motor-control or electrical-room arrangement.

The installation environment should be kept within the applicable temperature, humidity, altitude, contamination, and ventilation requirements.

---

10. Cooling System

The drive uses forced-air cooling.

At a power level approaching 500 kW, heat management is an important part of system design.

The electrical room or cabinet arrangement must allow sufficient airflow to remove the heat produced during normal drive operation.

Important considerations include:

• Ambient temperature.
• Ventilation.
• Cooling airflow.
• Cabinet arrangement.
• Room HVAC capacity.
• Dust accumulation.
• Air quality.
• Clearance around air passages.
• Heat generated by adjacent equipment.
• Maintenance of cooling components.

A high-power air-cooled drive should not be installed in a confined area where heated air can recirculate around the drive.

---

11. Embedded EtherNet/IP Communication

The 20G1ALF460AN0NNNNN includes an embedded EtherNet/IP communication interface.

This makes the drive suitable for integration into industrial automation networks.

Typical information exchanged through the network can include:

• Start commands.
• Stop commands.
• Speed references.
• Actual speed.
• Drive status.
• Current information.
• Fault information.
• Alarm information.
• Operating parameters.
• Diagnostic information.
• Control-system commands.

Network communication is particularly useful in large plants containing multiple drives.

Instead of treating each motor drive as an independent device, the drive can become part of the plant’s centralized control and monitoring architecture.

---

12. Product Applications

12.1 Large Water Pumps

Large water pumps are a major application area for high-power variable-frequency drives.

The 20G1ALF460AN0NNNNN can be considered for:

• Water-distribution pumps.
• Raw-water pumps.
• Industrial water pumps.
• Cooling-water pumps.
• Circulation pumps.
• Booster pumps.
• Water-treatment pumps.
• Wastewater pumps.

Variable-speed control allows the pump motor speed to follow process demand.

This can be useful where flow requirements change throughout the day or where different operating conditions require different pump speeds.

---

13. Wastewater Treatment

Large wastewater facilities use high-power motors for pumping, aeration, circulation, and sludge-processing systems.

Potential applications include:

• Lift stations.
• Main pumping stations.
• Aeration blowers.
• Process circulation pumps.
• Sludge pumps.
• Industrial wastewater systems.
• Water-recovery systems.

The ability to control motor speed provides greater flexibility than simple fixed-speed operation.

---

14. Large Fans and Blowers

Large fans and blowers can consume substantial motor power.

Potential applications include:

• Industrial ventilation.
• Furnace fans.
• Combustion-air systems.
• Exhaust systems.
• Dust-collection systems.
• Cooling fans.
• Process blowers.
• Large air-handling systems.

For variable-airflow applications, adjustable motor speed can provide more flexible process control.

---

15. Conveyor Systems

Large conveyors can require very high motor power, especially in mining, ports, cement plants, steel plants, and bulk-material handling facilities.

Potential applications include:

• Belt conveyors.
• Ore conveyors.
• Coal conveyors.
• Cement conveyors.
• Aggregate conveyors.
• Port conveyors.
• Bulk-material handling.
• Production-line conveyors.

The drive can provide controlled acceleration and deceleration.

This is useful for reducing sudden torque changes in belts, gearboxes, couplings, shafts, and other mechanical components.

---

16. Mining Applications

The 690 VAC and 460 A configuration is suitable for consideration in large mining and material-processing systems.

Potential applications include:

• Long conveyors.
• Dewatering pumps.
• Ventilation fans.
• Material-processing equipment.
• Crushers.
• Auxiliary production machinery.
• Bulk-material handling systems.

Mining environments require careful attention to dust, temperature, vibration, ventilation, grounding, cable protection, and maintenance access.

The standard IP20 configuration is intended for an appropriately protected industrial environment and should not be treated as a weatherproof outdoor enclosure.

---

17. Cement and Aggregate Equipment

Cement and aggregate plants contain many large motors.

The drive can be considered for:

• Large fans.
• Conveyors.
• Process pumps.
• Dust extraction systems.
• Material-handling equipment.
• Production machinery.
• Auxiliary systems.

Large cement plants often require centralized monitoring of multiple drives, making the integrated network interface useful for plant automation.

---

18. Steel and Metal Processing

Large steel and metal-processing facilities use variable-speed motors in many production and auxiliary systems.

Potential applications include:

• Cooling-water pumps.
• Exhaust fans.
• Process fans.
• Conveyors.
• Material-handling systems.
• Circulation pumps.
• Auxiliary process equipment.

The drive can be incorporated into a larger automation network where motor status, operating conditions, faults, and control commands are monitored centrally.

---

19. Compressor Applications

The 20G1ALF460AN0NNNNN may also be used for large compressor systems when the compressor’s speed range, torque characteristics, starting requirements, lubrication system, and control requirements are compatible with the drive.

Possible applications include:

• Industrial air compressors.
• Process compressors.
• Plant utility compressors.
• Large process-gas equipment.

Compressor applications should always be evaluated against the specific compressor design because different compressor technologies have different torque and speed characteristics.

---

20. Advantages of the 20G1ALF460AN0NNNNN

20.1 High 460 A Current Rating

The 460 A current rating provides substantial motor-control capacity.

It makes the drive suitable for large industrial motors that require considerably more current than medium-size variable-frequency drives.

---

20.2 Up to 500 kW Light-Duty Capacity

The light-duty rating reaches approximately 500 kW.

This gives the model sufficient capacity for large variable-torque applications and other loads where the light-duty rating is appropriate.

---

20.3 450 kW Normal-Duty Rating

The normal-duty rating of approximately 450 kW provides a strong capacity for general industrial applications.

This can cover a wide range of large pumps, fans, blowers, conveyors, and process machinery.

---

20.4 375 kW Heavy-Duty Rating

The heavy-duty rating of approximately 375 kW allows the drive to be considered for more demanding torque applications.

Heavy-duty selection should be based on the actual load profile, overload requirement, acceleration characteristics, and motor current.

---

20.5 690 VAC Industrial Voltage

The 690 VAC configuration is well suited to high-power industrial motor systems.

For large motor powers, a higher motor voltage can reduce the current required for a given power level compared with equivalent lower-voltage systems.

---

20.6 Embedded EtherNet/IP

Integrated network communication provides a convenient way to connect the drive to a larger industrial control system.

This can simplify drive monitoring and allow the control system to exchange operating information with the drive.

---

20.7 Air-Cooled Construction

Forced-air cooling provides a practical thermal-management arrangement for a large industrial drive.

It is particularly useful where the electrical room is designed with sufficient ventilation and HVAC capacity.

---

20.8 Frame 8 Industrial Platform

The Frame 8 platform is intended for large industrial motor-control applications.

Its floor-mounted architecture is appropriate for large electrical rooms and MCC-style installations.

---

20.9 Controlled Motor Starting

Variable-frequency operation provides controlled acceleration rather than applying full-speed operation immediately.

This can reduce mechanical shock during startup.

---

20.10 Adjustable Operating Speed

The drive can regulate motor speed according to the process requirement.

This is useful for pumps, fans, conveyors, blowers, and many process machines.

---

21. Input and Configuration Features

Feature	Configuration
Input voltage	690 VAC
Phase	3 phase
Input type	AC with precharge
DC terminals	None
Filtering	Filtered
CM jumper	Installed
Dynamic braking	None
Communication	Embedded EtherNet/IP
Display	Blank / no HIM
Enclosure	IP20 / NEMA Type 1
Cabinet	800 mm deep MCC style
Cooling	Forced air
Frame	8

The exact model configuration includes filtered input, CM jumper installed, no dynamic braking, and no HIM/display in the stated catalog configuration.

---

22. Installation Requirements

The physical size and current rating of the 20G1ALF460AN0NNNNN require careful installation planning.

Installation Factor	Recommended Consideration
Floor loading	Verify support for approximately 623 kg
Cabinet height	Allow for approximately 2453 mm
Cabinet width	Allow for approximately 600 mm
Cabinet depth	Allow for approximately 800 mm
Ventilation	Provide adequate airflow
Heat dissipation	Include drive losses in HVAC design
Cable routing	Provide adequate high-current cable space
Grounding	Use appropriate industrial grounding practices
Lifting	Plan suitable lifting equipment
Service clearance	Maintain sufficient maintenance space
Environment	Controlled indoor industrial area
Network cabling	Plan suitable communication routing
Motor cables	Consider cable length and motor requirements

---

23. Floor and Mechanical Planning

The approximately 623 kg weight is a significant mechanical consideration.

Before installation, the supporting floor or platform should be checked for:

• Static loading.
• Dynamic loading.
• Cabinet mounting requirements.
• Transportation loads.
• Lifting operations.
• Equipment-room access.
• Service access.
• Cable-entry requirements.

The drive should be transported and positioned using equipment appropriate for its actual weight and dimensions.

---

24. Maintenance

A high-power air-cooled drive should be incorporated into a planned preventive-maintenance program.

Maintenance Area	Recommended Inspection
Cooling fans	Check operation and abnormal noise
Air passages	Check for blockage
Cabinet	Check cleanliness
Power terminals	Check connection condition
Grounding	Check grounding connections
Motor cables	Check connection and insulation condition
Network cables	Check communication integrity
Drive status	Review alarms and faults
Environment	Check temperature and humidity
Ventilation	Confirm sufficient airflow
Mechanical mounting	Check stability and mounting condition

The maintenance frequency should be adjusted to the actual operating environment.

A dusty, hot, or heavily loaded installation normally requires closer inspection than a clean and temperature-controlled electrical room.

---

25. Recommended Same-Series or Related Models

The following five models are closely related 690 VAC PowerFlex 755 configurations and provide a useful comparison around the 460 A model.

Model	Voltage	Current	Light Duty	Normal Duty	Heavy Duty	Frame
20G1ALF265AN0NNNNN	690 VAC	265 A	315 kW	250 kW	200 kW	8
20G1ALF330AN0NNNNN	690 VAC	330 A	355 kW	315 kW	250 kW	8
20G1ALF370AN0NNNNN	690 VAC	370 A	400 kW	355 kW	300 kW	8
20G1ALF415AN0NNNNN	690 VAC	415 A	450 kW	400 kW	355 kW	8
20G1ALF500AN0NNNNN	690 VAC	500 A	530 kW	500 kW	400 kW	8

The 690 VAC Frame 8 range includes current classes around 265 A, 330 A, 370 A, 415 A, 460 A, and 500 A, allowing the drive capacity to be matched more closely to the motor and load requirements.

---

26. Detailed Related Model Information

26.1 20G1ALF265AN0NNNNN

Parameter	Specification
Model	20G1ALF265AN0NNNNN
Voltage	690 VAC
Current	265 A
Light-duty rating	315 kW
Normal-duty rating	250 kW
Heavy-duty rating	200 kW
Frame	8
General application	Pumps, fans, conveyors and process equipment

This is a lower-capacity alternative within the same 690 VAC Frame 8 family.

---

26.2 20G1ALF330AN0NNNNN

Parameter	Specification
Model	20G1ALF330AN0NNNNN
Voltage	690 VAC
Current	330 A
Light-duty rating	355 kW
Normal-duty rating	315 kW
Heavy-duty rating	250 kW
Frame	8
General application	Industrial pumps, fans and conveyors

This model is suitable when the required motor current is below the 460 A capacity.

---

26.3 20G1ALF370AN0NNNNN

Parameter	Specification
Model	20G1ALF370AN0NNNNN
Voltage	690 VAC
Current	370 A
Light-duty rating	400 kW
Normal-duty rating	355 kW
Heavy-duty rating	300 kW
Frame	8
General application	Large pumps, fans and process machinery

The 370 A configuration is a relatively close lower-current option.

---

26.4 20G1ALF415AN0NNNNN

Parameter	Specification
Model	20G1ALF415AN0NNNNN
Voltage	690 VAC
Current	415 A
Light-duty rating	450 kW
Normal-duty rating	400 kW
Heavy-duty rating	355 kW
Frame	8
General application	Large industrial motor systems

The 415 A version is the closest lower-capacity comparison to the 460 A model.

---

26.5 20G1ALF500AN0NNNNN

Parameter	Specification
Model	20G1ALF500AN0NNNNN
Voltage	690 VAC
Current	500 A
Light-duty rating	530 kW
Normal-duty rating	500 kW
Heavy-duty rating	400 kW
Frame	8
General application	Very large industrial motor systems

The 500 A configuration provides additional current and power capacity above the 460 A model.

---

27. Five Same-Brand Reference Models

The following models are useful same-brand reference products for comparing different current and power levels within the PowerFlex 755 family.

Model	Voltage Class	Current	Power Range	Frame	General Application
20G1ANF061JN0NNNNN	690 VAC	61 A	Medium-power range	6	Pumps, fans and industrial machinery
20G1ANF082JN0NNNNN	690 VAC	82 A	Medium-power range	6	Pumps, fans and conveyors
20G1ANF098JN0NNNNN	690 VAC	98 A	Medium-power range	6	Industrial machinery
20G1ALF370AN0NNNNN	690 VAC	370 A	Up to approx. 400 kW LD	8	Large industrial motors
20G1ALF415AN0NNNNN	690 VAC	415 A	Up to approx. 450 kW LD	8	Large industrial motors

These models provide a comparison from lower-current Frame 6 configurations through larger Frame 8 configurations.

The 370 A and 415 A versions are particularly close to the requested 460 A model in terms of application size.

---

28. Main Model Comparison

Model	Current	Light Duty	Normal Duty	Heavy Duty	Frame	Relative Capacity
20G1ALF265AN0NNNNN	265 A	315 kW	250 kW	200 kW	8	Lower
20G1ALF330AN0NNNNN	330 A	355 kW	315 kW	250 kW	8	Lower
20G1ALF370AN0NNNNN	370 A	400 kW	355 kW	300 kW	8	Lower
20G1ALF415AN0NNNNN	415 A	450 kW	400 kW	355 kW	8	Lower
20G1ALF460AN0NNNNN	460 A	500 kW	450 kW	375 kW	8	Reference
20G1ALF500AN0NNNNN	500 A	530 kW	500 kW	400 kW	8	Higher

This progression is useful when selecting a drive for a motor whose current requirement falls near the boundary between two drive ratings.

The 460 A model provides more capacity than the 415 A model while remaining below the 500 A configuration.

---

29. Application Selection Table

Application	Suitability	Main Requirement
Large water pump	High	Variable flow and pressure
Wastewater pump	High	Variable pumping capacity
Industrial circulation pump	High	Process flow control
Large fan	High	Adjustable airflow
Large blower	High	Variable airflow
Conveyor	High	Controlled acceleration
Bulk-material handling	High	High motor capacity
Mining conveyor	High	Large motor and controlled starting
Cement equipment	High	High-power motor control
Steel equipment	High	Continuous industrial operation
Compressor	Application dependent	Speed and torque compatibility
Crusher	Application dependent	High starting torque
Hoist	Application dependent	Braking and load requirements
Large mixer	Application dependent	Torque and overload
Process machinery	High	Adjustable process speed

---

30. Advantages for Pump Systems

For pump applications, the drive provides adjustable motor speed rather than requiring the motor to run continuously at one fixed speed.

This can be useful when the process demand changes.

Typical benefits include:

• Adjustable flow.
• Adjustable pressure.
• Controlled startup.
• Controlled stopping.
• Reduced mechanical shock.
• Process integration.
• Network monitoring.
• Centralized fault reporting.

For large pumping stations, these functions can be integrated into the plant’s wider control system.

---

31. Advantages for Fan Systems

Fan loads often operate under changing airflow requirements.

The drive allows the motor speed to be adjusted to match the process.

Potential benefits include:

• Adjustable airflow.
• Controlled startup.
• Reduced mechanical stress.
• Process automation.
• Remote monitoring.
• Centralized control.

For large industrial ventilation systems, speed control can also simplify operation under different production conditions.

---

32. Advantages for Conveyor Systems

Conveyors can experience substantial mechanical stress during startup.

The drive can provide controlled acceleration rather than applying full operating speed immediately.

This can help reduce sudden loading on:

• Conveyor belts.
• Gearboxes.
• Couplings.
• Drive shafts.
• Rollers.
• Mechanical supports.

The drive can also receive speed commands through the industrial network, allowing the conveyor to become part of a larger automated production system.

---

33. Network Integration

The embedded EtherNet/IP interface is particularly useful for large plants with many drives.

A centralized control system can monitor:

• Drive status.
• Motor speed.
• Current.
• Alarms.
• Faults.
• Operating conditions.
• Commands.
• Process references.

This can reduce the amount of independent hardwired monitoring required for a large drive installation.

---

34. Industrial Environment

The IP20 / NEMA Type 1 configuration is intended for a controlled industrial installation.

Suitable installation locations may include:

• Electrical rooms.
• Motor-control rooms.
• Industrial control rooms.
• Protected equipment areas.
• Indoor production facilities.

The standard configuration should not be considered suitable for direct exposure to:

• Rain.
• Snow.
• Outdoor weather.
• Washdown water.
• Excessive moisture.
• Heavy conductive dust.

Where such conditions exist, additional environmental protection should be provided.

---

35. Engineering Selection Checklist

Before ordering or installing the 20G1ALF460AN0NNNNN, the following items should be checked.

Selection Item	Check
Motor voltage	Confirm 690 VAC compatibility
Motor current	Confirm against 460 A drive capacity
Motor power	Check duty-specific rating
Duty class	Determine LD, ND or HD requirement
Load torque	Confirm actual torque profile
Acceleration time	Check motor and load inertia
Deceleration	Determine braking requirement
Dynamic braking	Not included in this configuration
Environment	Confirm enclosure and environmental requirements
Cooling	Confirm adequate airflow
Installation space	Confirm approximately 2453 × 600 × 800 mm planning envelope
Weight	Confirm floor can support approximately 623 kg
Network	Confirm EtherNet/IP requirements
Motor cable	Check cable size and installation
Grounding	Confirm system grounding arrangement
Maintenance	Provide adequate service access

---

36. Product Specification Summary

Category	Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Model	20G1ALF460AN0NNNNN
Product type	High-power AC variable-frequency drive
Input voltage	690 VAC
Phase	Three-phase
Rated current	460 A
Light-duty rating	500 kW
Normal-duty rating	450 kW
Heavy-duty rating	375 kW
Frame	8
Cooling	Forced air
Enclosure	IP20 / NEMA Type 1
Cabinet style	MCC
Cabinet depth	800 mm
Input	AC with precharge
DC terminals	None
Filtering	Filtered
CM jumper	Installed
Dynamic braking	None
Communication	Embedded EtherNet/IP
Display	Blank / no HIM
Approximate height	2453 mm
Approximate width	600 mm
Approximate depth	800 mm
Approximate weight	623 kg
Mounting	Floor mounted
Main applications	Pumps, fans, blowers, conveyors, compressors, mining, water treatment and process machinery

---

37. Final Product Description

The Allen-Bradley 20G1ALF460AN0NNNNN is a high-power PowerFlex 755 AC variable-frequency drive designed for large industrial motor applications.

It operates in the 690 VAC three-phase voltage class and provides a 460 A current rating. Its power ratings reach approximately 500 kW for light-duty operation, 450 kW for normal-duty operation, and 375 kW for heavy-duty operation.

The drive uses a Frame 8 air-cooled construction with an IP20 / NEMA Type 1, 800 mm deep MCC-style arrangement. The approximate planning dimensions are 2453 mm high × 600 mm wide × 800 mm deep, with an approximate weight of 623 kg.

The large physical size and weight make mechanical planning an important part of installation. Floor strength, lifting equipment, transportation access, cable routing, ventilation, service clearance, and electrical-room layout should all be evaluated before installation.

The embedded EtherNet/IP interface makes the drive suitable for integration into industrial automation systems. It can be used as part of a larger control architecture for monitoring operating status, receiving speed commands, exchanging control information, and reporting alarms and faults.

The 20G1ALF460AN0NNNNN is well suited to large pumps, fans, blowers, conveyors, water-treatment equipment, mining machinery, cement equipment, steel-processing equipment, process machinery, and other large industrial motor applications.

For pump and fan applications, adjustable speed can provide better process control than fixed-speed operation.

For conveyor applications, controlled acceleration and deceleration can help reduce mechanical stress during starting and stopping.

For large industrial plants, network communication allows the drive to be incorporated into a centralized control and monitoring system.

The 460 A rating gives the model additional capacity over the 415 A configuration while remaining within the same high-power 690 VAC Frame 8 family. The 500 A configuration provides a further step up when additional motor current capacity is required.

When selecting this drive for a real installation, motor nameplate current should be checked together with motor voltage, duty classification, load torque, acceleration requirements, braking requirements, operating cycle, ambient temperature, installation altitude, cable length, grounding, ventilation, and environmental conditions.

The approximate 623 kg equipment weight should also be included in transportation, lifting, floor-loading, and installation calculations.

Overall, the 20G1ALF460AN0NNNNN is a large-capacity industrial AC drive intended for high-power motor control. Its combination of 460 A current capacity, 690 VAC operation, up to 500 kW light-duty power, Frame 8 construction, forced-air cooling, embedded EtherNet/IP, filtered input, AC precharge, and MCC-style installation makes it suitable for demanding industrial motor-control systems.