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20G11TC460JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The 20G11TC460JN0NNNNN is a high-power AC variable frequency drive from the Allen-Bradley PowerFlex 755 series.

It is designed for large three-phase industrial motors and is particularly suitable for applications that require high motor current, variable-speed operation, controlled acceleration and deceleration, industrial networking, and integration with an automated control system.

This particular configuration is a 400 VAC, three-phase, Frame 8 PowerFlex 755 AC drive with a nominal normal-duty output rating of 460 A and 250 kW.

For heavy-duty applications, the drive is rated at approximately 385 A and 200 kW.

For light-duty operation, the available rating is approximately 315 kW, making the drive suitable for a wide range of large industrial motor applications when the operating duty is correctly defined.

The model is air-cooled and uses an open-type high-power construction. It includes embedded EtherNet/IP communication, AC input with precharge and DC terminals, filtered EMC configuration, a factory-installed CM jumper, no dynamic braking transistor, and a blank/no-HIM configuration.

The 20G11TC460JN0NNNNN is therefore positioned toward the upper end of conventional industrial variable-frequency-drive applications and is intended for large machinery rather than compact equipment.

---

2. Brand and Product Family

Item	Specification
Model	20G11TC460JN0NNNNN
Brand	Allen-Bradley
Product family	PowerFlex
Series	PowerFlex 755
Product category	AC Variable Frequency Drive
Product type	High-Power AC Drive
Frame	Frame 8
Cooling	Forced Air
Input	AC with precharge
Output	Three-phase variable-frequency AC
Input voltage class	400 VAC
Input phases	3 phase
Communication	Embedded EtherNet/IP
Enclosure construction	Open Type
Filtering	Filtered
CM capacitor configuration	CM jumper installed
Dynamic braking	None
Local operator interface	Blank / No HIM

The PowerFlex 755 family is intended for demanding industrial motor-control applications where a basic speed controller is not sufficient.

The platform is particularly appropriate for large conveyors, pumps, fans, compressors, process machinery, material-handling equipment, large mixers, rollers and other high-power rotating machinery.

---

3. Model Identification

The complete catalog number is:

20G11TC460JN0NNNNN

The configuration identifies a specific combination of electrical rating, frame size, input arrangement, filtering, communication and other factory options.

The most important characteristics of this model are:

• PowerFlex 755 platform
• 400 VAC class
• Three-phase input
• 460 A normal-duty output
• 250 kW normal-duty rating
• 385 A heavy-duty output
• 200 kW heavy-duty rating
• Approximately 315 kW light-duty capability
• Frame 8
• Forced-air cooling
• AC input with precharge
• DC terminals
• Embedded EtherNet/IP
• Filtered configuration
• CM jumper installed
• No dynamic braking transistor
• Blank/no-HIM configuration

This combination makes the model particularly suitable for centralized industrial drive systems.

---

4. Main Technical Specifications

Parameter	Specification
Model	20G11TC460JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive type	AC Variable Frequency Drive
Frame	Frame 8
Input voltage	400 VAC class
Input voltage range	Approximately 360–440 VAC
Input phase	Three-phase
Output phase	Three-phase
Normal-duty output current	460 A
Normal-duty output power	250 kW
Heavy-duty output current	385 A
Heavy-duty output power	200 kW
Light-duty output power	315 kW
Light-duty current class	Approximately 540 A
Dynamic braking	None
Input configuration	AC input with precharge
DC terminals	Yes
Filtering	Filtered
CM jumper	Installed
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Cooling	Forced air
Enclosure	Open Type
Protection class	Open-type configuration; cabinet system may provide higher enclosure protection
Mounting	Floor/cabinet installation
Operating temperature	Approximately -20 to +60 °C, application dependent
Storage temperature	Approximately -40 to +70 °C
Approx. open-frame dimensions	About 2145 × 778 × 425 mm class
Approx. cabinet dimensions	About 2450 × 600 × 600–800 mm class, depending on enclosure
Approx. open-drive weight	About 286 kg class
Approx. cabinet-system weight	About 600+ kg depending on enclosure/options
Weight (kg)	Approximately 286 kg for the large open drive assembly; complete cabinet configuration can be approximately 600–625 kg or more depending on construction

Dimensions and weight should be treated as installation-planning values rather than shipping-certified values because the final mechanical dimensions and weight can vary according to enclosure, cabinet arrangement, accessories, disconnect equipment, cooling equipment and other options.

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5. Electrical Rating

The principal electrical rating of the 20G11TC460JN0NNNNN is:

460 A normal duty / 250 kW

For applications involving heavier overload requirements, the rating becomes approximately:

385 A heavy duty / 200 kW

The light-duty rating can reach approximately:

315 kW

The three operating classifications are important because two motors with similar horsepower can have very different current and overload requirements.

For example, a conveyor with frequent acceleration and high starting torque can require a different drive selection from a large centrifugal fan that operates at relatively stable load conditions.

For this reason, the drive should be selected using the actual motor nameplate current and application duty.

---

6. Normal-Duty Rating

The normal-duty rating is:

460 A

with a nominal power rating of:

250 kW

This makes the drive suitable for large industrial motors in applications where the load does not continuously demand the maximum overload capability associated with heavy-duty operation.

Typical normal-duty applications can include:

• Large pumps
• Centrifugal fans
• Large blowers
• Conveyors with moderate load variation
• Process machinery
• Industrial ventilation
• Material-handling systems
• Large rotating equipment

---

7. Heavy-Duty Rating

For heavy-duty applications, the drive provides approximately:

385 A / 200 kW

Heavy-duty operation is more appropriate where the motor is expected to experience greater overload demand or more demanding acceleration conditions.

Potential examples include:

• High-inertia conveyors
• Crushers
• Heavy material-handling machinery
• Large mixers
• Machinery with frequent acceleration
• Machinery with high starting torque requirements
• Industrial equipment with substantial load fluctuations

The heavy-duty rating should be considered carefully before final selection.

---

8. Light-Duty Rating

The light-duty rating is approximately:

315 kW

This is useful for applications where the motor load is comparatively stable and the overload requirement is less demanding.

Large centrifugal fans and pumps are common examples of loads that can sometimes make better use of the light-duty rating than heavy-duty machinery.

---

9. Input Power

The model is designed for a 400 VAC three-phase electrical system.

The nominal input voltage is approximately:

400 VAC

The applicable input range is approximately:

360–440 VAC

This voltage class makes the drive appropriate for industrial electrical systems using 380 V, 400 V or 415 V class power, subject to the actual electrical installation requirements.

The input side uses an AC input arrangement with precharge.

The DC terminals provide access to the DC bus system where applicable to the system design.

---

10. Output Characteristics

The drive converts fixed-frequency AC input power into a variable-frequency, variable-voltage three-phase output.

The motor can therefore operate at different speeds without requiring mechanical speed changes.

A simplified operating principle is:

400 VAC Three-Phase Input

↓

Power Conversion

↓

DC Bus

↓

Inverter

↓

Variable-Frequency Three-Phase Output

↓

Large AC Motor

This arrangement allows the controller to regulate motor speed and operating conditions.

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11. Product Introduction

The 20G11TC460JN0NNNNN is intended for large industrial applications where motor speed needs to be controlled accurately and where the motor power is too large for compact variable-frequency drives.

Instead of operating the motor at one fixed speed, the drive can adjust the motor speed according to the process requirement.

This provides flexibility in applications where production demand changes throughout the operating cycle.

For example, a pump does not always need to run at maximum speed.

A conveyor does not always need to operate at maximum production speed.

A fan may require different airflow at different times.

A process mixer may require different speeds depending on the material being processed.

The drive allows the motor to respond to these changing requirements.

---

12. Embedded EtherNet/IP

One of the major features of this configuration is its embedded EtherNet/IP communication capability.

The drive can therefore be integrated into an industrial automation network.

A typical arrangement can be:

PLC

↓

EtherNet/IP

↓

20G11TC460JN0NNNNN

↓

Large AC Motor

The controller can send commands such as:

• Start
• Stop
• Speed reference
• Direction
• Enable
• Reset
• Operating mode

The drive can return information including:

• Output frequency
• Motor current
• Motor speed
• Drive status
• Warning status
• Fault status
• Diagnostic information

This type of integration is particularly valuable in large production plants containing many motor-driven machines.

---

13. No HIM Configuration

The model uses a:

Blank / No HIM

configuration.

This means the catalog configuration does not include a local Human Interface Module as the primary operator interface.

This is often useful in centralized automation systems.

The drive can instead be operated through:

• PLC
• HMI
• SCADA
• Industrial Ethernet
• Control-room interface

This can reduce the need for local operator interaction at the drive itself.

---

14. CM Jumper Installed

The model is configured with the:

CM Jumper Installed

configuration.

This is an important distinction when comparing catalog numbers within the same PowerFlex family.

The CM capacitor configuration can affect the electrical relationship between the drive and ground.

The actual installation should follow the electrical system design and the applicable grounding arrangement.

---

15. Filtering

The drive is configured as:

Filtered

This can be beneficial in industrial installations where electromagnetic compatibility is important.

High-power drives can produce electrical noise as a natural consequence of high-frequency switching.

The installation should nevertheless use proper:

• Grounding
• Shielding
• Cable routing
• Motor cable practices
• Control cable separation
• Network cable routing

A filter does not eliminate the need for good electrical installation practices.

---

16. Dynamic Braking

The configuration is specified as:

No Dynamic Braking

This means the drive should not be treated as having an integrated dynamic-braking transistor for conventional resistor braking.

This is particularly important for applications involving large rotating inertia.

Examples include:

• Large flywheels
• Long conveyors
• High-speed rollers
• Centrifuges
• Large fans
• High-inertia process machinery

During deceleration, stored mechanical energy can return toward the drive DC bus.

If rapid stopping is required, the complete braking strategy should be engineered separately.

---

17. Cooling System

The drive uses:

Forced-air cooling

This is necessary because a drive handling hundreds of amps and hundreds of kilowatts produces considerable heat.

The cooling system removes heat generated by:

• Power semiconductors
• Switching devices
• DC bus components
• Control electronics
• Auxiliary components
• Internal losses

Adequate airflow is therefore essential.

The installation should prevent excessive dust accumulation and should provide sufficient ventilation.

---

18. Frame 8 Construction

The 20G11TC460JN0NNNNN uses Frame 8 construction.

Frame 8 is a large physical platform designed for high-power applications.

Compared with smaller drive frames, Frame 8 equipment requires significantly more installation space.

It also requires more careful planning for:

• Floor loading
• Incoming cables
• Motor cables
• Cooling airflow
• Maintenance access
• Electrical clearances
• Cabinet ventilation
• Grounding

The equipment should therefore be regarded as a major electrical installation rather than a small machine component.

---

19. Dimensions

The approximate dimensions for the large open-drive arrangement are in the following range:

Height: approximately 2145 mm

Width: approximately 778 mm

Depth: approximately 425 mm

A cabinet configuration can be substantially different.

A typical large cabinet arrangement can be approximately:

Height: approximately 2450 mm

Width: approximately 600 mm

Depth: approximately 600–800 mm

The exact dimensions depend on the selected enclosure and cabinet configuration.

Mechanical Parameter	Approximate Value
Model	20G11TC460JN0NNNNN
Frame	Frame 8
Open-drive height	Approx. 2145 mm
Open-drive width	Approx. 778 mm
Open-drive depth	Approx. 425 mm
Cabinet height	Approx. 2450 mm
Cabinet width	Approx. 600 mm
Cabinet depth	Approx. 600–800 mm
Open-drive mounting	Floor/cabinet
Cooling	Forced air
Weight (kg)	Approx. 286 kg open assembly
Weight (kg), cabinet system	Approx. 600–625 kg class, depending on configuration

Because this is a large Frame 8 product, installation dimensions should be verified against the actual mechanical drawing before fabricating a cabinet, mounting base or electrical room layout.

---

20. Product Weight

The weight of this type of high-power drive is substantially greater than that of compact drives.

For the large open assembly, an approximate planning value is:

286 kg

A complete cabinet system can weigh:

approximately 600–625 kg or more

depending on the enclosure, disconnects, protection equipment, cooling arrangements and other components.

Therefore, the supporting floor, cabinet base and lifting equipment should be selected according to the actual delivered configuration.

---

21. Main Applications

21.1 Large Conveyor Systems

Large conveyors are one of the most suitable application categories for this drive.

A conveyor may need:

• Controlled acceleration
• Controlled deceleration
• Variable operating speed
• Load monitoring
• Centralized control
• Network communication

The drive can adjust motor speed according to the required production rate.

This can be especially useful for long conveyors and material-handling systems.

---

22. Mining and Bulk Material Handling

Large material-handling equipment can require very high motor power.

Suitable applications can include:

• Ore conveyors
• Bulk material conveyors
• Transfer conveyors
• Feed systems
• Material processing
• Heavy-duty transport equipment

The drive’s high current rating provides the capacity required by large motors.

---

23. Large Pumps

Large pumps are another important application.

Possible applications include:

• Industrial water circulation
• Cooling-water systems
• Process-water systems
• Water transfer
• Wastewater systems
• Large process pumps

Variable-speed operation can allow pump output to follow process demand.

---

24. Large Fans and Blowers

The drive is suitable for high-power fan and blower applications when the motor current falls within the drive rating.

Applications can include:

• Industrial ventilation
• Process ventilation
• Furnace systems
• Exhaust systems
• Large air-handling systems
• Cooling systems

Variable-speed operation can provide flexible airflow control.

---

25. Compressors

Large compressors can also require several hundred kilowatts of motor power.

The drive can provide controlled acceleration and variable-speed operation when the compressor and motor are suitable for variable-frequency operation.

Potential applications include:

• Plant air systems
• Process gas equipment
• Large industrial compressors
• Utility systems

The compressor’s torque characteristics should be considered during drive selection.

---

26. Large Mixers and Agitators

Large industrial mixers can have significant inertia and changing mechanical loads.

The drive can provide:

• Controlled acceleration
• Adjustable speed
• Controlled operating conditions
• Network-based control
• Fault monitoring

For heavy-duty mixing applications, the heavy-duty current rating should be evaluated carefully.

---

27. Rollers and Processing Machinery

Large rollers used in industrial processing can require precise speed control.

The drive can help coordinate motor speed with:

• Production line speed
• Material flow
• Tension requirements
• Upstream machinery
• Downstream machinery

This is particularly useful in continuous production processes.

---

28. Material-Handling Equipment

The drive can be used in large:

• Hoisting-related systems
• Transfer systems
• Conveyor systems
• Feed systems
• Industrial transport machinery

However, vertical lifting applications require special attention to braking, load control and safety requirements.

The absence of an integrated dynamic-braking transistor in this configuration is particularly important when evaluating such applications.

---

29. Advantages of the 20G11TC460JN0NNNNN

29.1 High Power Capacity

The drive provides a normal-duty rating of approximately:

250 kW

This makes it suitable for large industrial motors.

---

29.2 High Current Capacity

The normal-duty output current is:

460 A

This is one of the most important characteristics of the model.

---

29.3 315 kW Light-Duty Capability

For suitable applications, the light-duty rating reaches approximately:

315 kW

This provides additional application flexibility.

---

29.4 200 kW Heavy-Duty Rating

The heavy-duty rating of approximately:

200 kW

makes the drive suitable for applications requiring greater overload capability.

---

29.5 Embedded EtherNet/IP

Integrated Ethernet communication simplifies integration into a modern automation system.

---

29.6 High-Power Frame 8 Platform

Frame 8 construction provides the physical and electrical capacity required by large industrial motors.

---

29.7 Forced-Air Cooling

Forced-air cooling supports continuous operation at high power when the installation environment is properly designed.

---

29.8 Industrial Automation Integration

The drive can be incorporated into centralized control architectures involving PLCs, HMIs and supervisory systems.

---

29.9 Flexible Speed Control

Motor speed can be adjusted according to the production process rather than being limited to fixed-speed operation.

---

29.10 Detailed Operating Information

A network-connected drive can provide useful operational and diagnostic information.

This can help maintenance personnel understand:

• Motor loading
• Current
• Speed
• Drive status
• Fault conditions
• Warnings
• Communication status

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30. Detailed Parameter Table

Category	Parameter	Specification
Identification	Model	20G11TC460JN0NNNNN
Identification	Brand	Allen-Bradley
Identification	Series	PowerFlex 755
Product	Product type	AC Variable Frequency Drive
Product	Frame	Frame 8
Electrical	Nominal input voltage	400 VAC
Electrical	Input voltage range	Approx. 360–440 VAC
Electrical	Input phases	3
Electrical	Output phases	3
Electrical	Normal-duty current	460 A
Electrical	Normal-duty power	250 kW
Electrical	Heavy-duty current	385 A
Electrical	Heavy-duty power	200 kW
Electrical	Light-duty power	315 kW
Input	AC input	Yes
Input	Precharge	Yes
DC bus	DC terminals	Yes
Braking	Dynamic braking	None
Filtering	EMC filtering	Filtered
Filtering	CM jumper	Installed
Communication	EtherNet/IP	Embedded
Interface	HIM	Blank / No HIM
Cooling	Cooling method	Forced air
Construction	Enclosure	Open Type
Mounting	Installation	Floor/cabinet
Environment	Operating temperature	Approx. -20 to +60 °C
Environment	Storage temperature	Approx. -40 to +70 °C
Mechanical	Open height	Approx. 2145 mm
Mechanical	Open width	Approx. 778 mm
Mechanical	Open depth	Approx. 425 mm
Mechanical	Cabinet height	Approx. 2450 mm
Mechanical	Cabinet width	Approx. 600 mm
Mechanical	Cabinet depth	Approx. 600–800 mm
Mechanical	Open assembly weight	Approx. 286 kg
Mechanical	Cabinet-system weight	Approx. 600–625 kg class
Weight	Weight (kg)	Approx. 286 kg open assembly / 600–625 kg cabinet class

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31. Five Recommended Same-Series or Closely Related Models

The following models are useful comparison choices within the same high-power PowerFlex 755 family.

Model	Voltage	Frame	Light Duty	Normal Duty	Heavy Duty	Approx. Size	Weight (kg)
20G11TC540JN0NNNNN	400 VAC	8	Approx. 315 kW	Approx. 315 kW class	Approx. 250 kW	Frame 8 class	Approx. 286 kg open / 600+ kg cabinet
20G11TC567JN0NNNNN	400 VAC	8	Approx. 355 kW	Approx. 315 kW	Approx. 250 kW	Frame 8 class	Approx. 286 kg open / 600+ kg cabinet
20G11TC650JN0NNNNN	400 VAC	8	Approx. 400 kW	Approx. 355 kW	Approx. 315 kW	Frame 8 class	Approx. 286 kg open / 600+ kg cabinet
20G11TC750JN0NNNNN	400 VAC	8	Approx. 450 kW	Approx. 400 kW	Approx. 315 kW	Frame 8 class	Approx. 286 kg open / 600+ kg cabinet
20G11TC770JN0NNNNN	400 VAC	8	Approx. 450 kW	Approx. 400 kW	Approx. 355 kW	Frame 8 class	Approx. 286 kg open / 600+ kg cabinet

These are intended as comparison models within the same high-power product family. Final selection should be based on the actual motor nameplate current, voltage, duty cycle and overload requirements.

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32. Same-Series Comparison

Parameter	20G11TC460JN0NNNNN	20G11TC540JN0NNNNN	20G11TC567JN0NNNNN	20G11TC650JN0NNNNN	20G11TC750JN0NNNNN	20G11TC770JN0NNNNN
Series	PF755	PF755	PF755	PF755	PF755	PF755
Voltage class	400 V	400 V	400 V	400 V	400 V	400 V
Frame	8	8	8	8	8	8
Normal-duty current	460 A	540 A class	567 A	650 A	750 A	770 A
Normal-duty power	250 kW	315 kW class	315 kW	355 kW	400 kW	400 kW
Heavy-duty current	385 A	450 A class	470 A class	540 A class	585 A class	640 A class
Heavy-duty power	200 kW	250 kW class	250 kW	315 kW	315 kW	355 kW
Light-duty power	315 kW	315 kW class	355 kW	400 kW	450 kW	450 kW
Cooling	Forced air	Forced air	Forced air	Forced air	Forced air	Forced air
EtherNet/IP	Yes	Yes	Yes	Yes	Yes	Yes
Dynamic braking	None	Configuration dependent	Configuration dependent	Configuration dependent	Configuration dependent	Configuration dependent
Weight (kg)	Approx. 286 kg open	Approx. 286 kg open	Approx. 286 kg open	Approx. 286 kg open	Approx. 286 kg open	Approx. 286 kg open

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33. Recommended Model 1 — 20G11TC540JN0NNNNN

The 20G11TC540JN0NNNNN is a logical choice when the 460 A configuration is close to the motor’s current requirement but additional capacity is desirable.

It remains within the same 400 VAC high-power family.

Parameter	Specification
Model	20G11TC540JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC
Phase	3 phase
Frame	8
Normal-duty current	Approx. 540 A
Normal-duty power	Approx. 315 kW class
Heavy-duty power	Approx. 250 kW class
Cooling	Forced air
Communication	Embedded EtherNet/IP
Dynamic braking	Configuration dependent
Construction	High-power Frame 8
Approx. dimensions	2145 × 778 × 425 mm class
Weight (kg)	Approx. 286 kg open assembly; cabinet version 600+ kg class

---

34. Recommended Model 2 — 20G11TC567JN0NNNNN

The 20G11TC567JN0NNNNN provides a higher current capacity and is suitable for applications requiring more motor current than the 460 A version.

Parameter	Specification
Model	20G11TC567JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC
Phase	3 phase
Frame	8
Normal-duty current	Approx. 567 A
Normal-duty power	Approx. 315 kW
Heavy-duty power	Approx. 250 kW
Light-duty power	Approx. 355 kW class
Cooling	Forced air
Communication	Embedded EtherNet/IP
Construction	High-power Frame 8
Approx. dimensions	2145 × 778 × 425 mm class
Weight (kg)	Approx. 286 kg open assembly; cabinet version 600+ kg class

---

35. Recommended Model 3 — 20G11TC650JN0NNNNN

The 20G11TC650JN0NNNNN is appropriate when the required motor current is substantially higher.

It provides approximately 650 A normal-duty output.

Parameter	Specification
Model	20G11TC650JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC
Phase	3 phase
Frame	8
Normal-duty current	Approx. 650 A
Normal-duty power	Approx. 355 kW
Heavy-duty power	Approx. 315 kW
Light-duty power	Approx. 400 kW
Cooling	Forced air
Communication	Embedded EtherNet/IP
Construction	High-power Frame 8
Approx. dimensions	2145 × 778 × 425 mm class
Weight (kg)	Approx. 286 kg open assembly; cabinet version 600+ kg class

---

36. Recommended Model 4 — 20G11TC750JN0NNNNN

The 20G11TC750JN0NNNNN belongs to the higher-capacity end of the same high-power family.

It is suitable for very large motors requiring approximately 750 A normal-duty capacity.

Parameter	Specification
Model	20G11TC750JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC
Phase	3 phase
Frame	8
Normal-duty current	Approx. 750 A
Normal-duty power	Approx. 400 kW
Heavy-duty power	Approx. 315 kW
Light-duty power	Approx. 450 kW
Cooling	Forced air
Communication	Embedded EtherNet/IP
Construction	High-power Frame 8
Approx. dimensions	2145 × 778 × 425 mm class
Weight (kg)	Approx. 286 kg open assembly; cabinet version 600+ kg class

---

37. Recommended Model 5 — 20G11TC770JN0NNNNN

The 20G11TC770JN0NNNNN is another higher-capacity Frame 8 option.

It can be considered for applications where the motor current requirement exceeds the 460 A model.

Parameter	Specification
Model	20G11TC770JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC
Phase	3 phase
Frame	8
Normal-duty current	Approx. 770 A
Normal-duty power	Approx. 400 kW
Heavy-duty power	Approx. 355 kW
Light-duty power	Approx. 450 kW
Cooling	Forced air
Communication	Embedded EtherNet/IP
Construction	High-power Frame 8
Approx. dimensions	2145 × 778 × 425 mm class
Weight (kg)	Approx. 286 kg open assembly; cabinet version 600+ kg class

---

38. Five Popular Same-Brand Models

For applications that do not require a 460 A high-power drive, the same brand also offers smaller and more compact drive families.

The following five models are useful alternatives for lower-power industrial applications.

Model	Series	Voltage Class	Approx. Current Class	Approx. Power Class	Typical Application	Approx. Dimensions	Weight (kg)
20G11GD014AA0NNNNN	PowerFlex 755	480 VAC	14 A	10 HP class	Pumps, fans, conveyors	Frame 2 class	Approx. 8 kg
20G11GD022AA0NNNNN	PowerFlex 755	480 VAC	22 A	15 HP class	General machinery	Frame 2 class	Approx. 8–12 kg
20G11GD027AA0NNNNN	PowerFlex 755	480 VAC	27 A	20 HP class	Conveyors, pumps	Frame 3 class	Approx. 12–15 kg
25B-D6P0N104	PowerFlex 525	480 VAC class	6 A	3 HP class	Compact machines	Approx. 200 × 90 × 180 mm class	Approx. 2–3 kg
25B-D011N104	PowerFlex 525	480 VAC class	11 A	5 HP class	Compact industrial equipment	Compact frame	Approx. 3 kg

These models are not direct replacements for the 20G11TC460JN0NNNNN.

They are included as same-brand alternatives for applications where a much smaller motor is involved.

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39. Same-Brand Product Comparison

Parameter	20G11TC460JN0NNNNN	20G11GD014AA0NNNNN	20G11GD022AA0NNNNN	20G11GD027AA0NNNNN	25B-D6P0N104	25B-D011N104
Series	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 525	PowerFlex 525
Voltage class	400 VAC	480 VAC	480 VAC	480 VAC	480 VAC	480 VAC
Current class	460 A	14 A	22 A	27 A	6 A	11 A
Power class	250 kW ND	10 HP	15 HP	20 HP	3 HP	5 HP
Frame	8	Small frame	Small frame	Small frame	Compact	Compact
Cooling	Forced air	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled
Network capability	EtherNet/IP	EtherNet/IP	EtherNet/IP	EtherNet/IP	EtherNet/IP	EtherNet/IP
Typical use	Large machinery	Small/medium machinery	Small/medium machinery	Small/medium machinery	Compact machines	Compact machines
Weight (kg)	Approx. 286 kg open	Approx. 8 kg	Approx. 8–12 kg	Approx. 12–15 kg	Approx. 2–3 kg	Approx. 3 kg

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40. Application Selection Guide

Application Requirement	Recommended Product Direction
Large 200 kW heavy-duty motor	20G11TC460JN0NNNNN
Large 250 kW normal-duty motor	20G11TC460JN0NNNNN
Around 315 kW motor	20G11TC540JN0NNNNN / 20G11TC567JN0NNNNN
Around 355 kW motor	20G11TC650JN0NNNNN
Around 400 kW motor	20G11TC750JN0NNNNN / 20G11TC770JN0NNNNN
10 HP-class motor	20G11GD014AA0NNNNN
15 HP-class motor	20G11GD022AA0NNNNN
20 HP-class motor	20G11GD027AA0NNNNN
3 HP-class compact machine	25B-D6P0N104
5 HP-class compact machine	25B-D011N104

The actual motor nameplate current should be the primary criterion when selecting the final drive.

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41. Installation Requirements

Because the 20G11TC460JN0NNNNN is a Frame 8 high-power drive, installation requires more planning than a compact drive.

The following items should be considered:

• Floor loading
• Cabinet construction
• Incoming power cables
• Motor cables
• Grounding
• Cooling airflow
• Service access
• Electrical clearance
• Cable bending radius
• Network cable routing
• Maintenance access
• Lifting arrangements
• Cabinet ventilation

The large weight means that the equipment should not be treated as a lightweight wall-mounted component.

A suitable mechanical support structure should be prepared before installation.

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42. Cooling and Ventilation

The drive generates significant heat during operation.

The forced-air cooling system must have adequate airflow.

The installation should avoid:

• Blocked ventilation openings
• Excessive dust
• High ambient temperature
• Corrosive contaminants
• Poor cabinet ventilation
• Recirculation of hot exhaust air

In cabinet installations, the cabinet thermal design should account for both the drive losses and the heat generated by other equipment.

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43. Electrical Installation

The high current rating requires appropriately sized electrical infrastructure.

The installation should consider:

• Main disconnect equipment
• Input protection
• Short-circuit protection
• Input conductor size
• Motor conductor size
• Grounding conductors
• Motor cable length
• Shielding
• Cable routing
• EMC considerations
• Control wiring
• Network wiring
• Cabinet bonding

The exact protection and conductor sizing should be determined according to the electrical system design and applicable regulations.

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44. Motor Compatibility

The drive should be matched to the motor.

Important motor parameters include:

• Rated voltage
• Rated current
• Rated frequency
• Rated speed
• Rated power
• Power factor
• Motor type
• Service factor
• Overload requirements
• Acceleration requirements
• Deceleration requirements

The motor current is particularly important.

A 250 kW motor is not automatically compatible simply because the drive is labeled as a 250 kW drive.

The actual motor current and duty classification should be checked.

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45. Advantages for Automation Systems

The drive is especially useful in automated factories.

A network-connected installation can provide centralized access to:

• Start/stop commands
• Speed reference
• Actual speed
• Motor current
• Drive status
• Fault information
• Warning information
• Diagnostic information

This allows the drive to become part of a larger control strategy.

For example:

Production Schedule

↓

PLC

↓

Drive Speed Reference

↓

20G11TC460JN0NNNNN

↓

Motor

↓

Mechanical Process

This architecture can improve coordination between different parts of the production line.

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46. Advantages for Maintenance

The availability of drive status and diagnostic information can help maintenance personnel.

Instead of simply observing that a motor has stopped, the control system can provide information indicating whether the problem is related to:

• Overcurrent
• Overvoltage
• Undervoltage
• Overtemperature
• Communication
• Motor conditions
• Drive faults

This can reduce troubleshooting time.

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47. Energy Management

Variable-speed operation can provide energy benefits in suitable applications.

The potential benefit is particularly relevant for centrifugal loads such as:

• Pumps
• Fans
• Blowers

In these applications, reducing motor speed can significantly reduce mechanical power demand.

However, the actual energy savings depend on the process, operating schedule, motor efficiency and load characteristics.

The drive should therefore be viewed as an energy-control tool rather than assuming a fixed percentage of savings for every installation.

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48. Conveyor Control Benefits

For conveyor systems, the drive can provide:

• Controlled starting
• Controlled stopping
• Adjustable speed
• Reduced mechanical shock
• Coordinated operation
• Centralized monitoring
• Load-dependent speed control

This can reduce mechanical stress on belts, gearboxes, couplings and other transmission components when properly configured.

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49. Pump Control Benefits

For pump applications, variable-speed operation can provide:

• Adjustable flow
• Pressure control
• Reduced throttling
• Process flexibility
• Smooth starting
• Controlled stopping
• Centralized monitoring

This can be especially useful in systems where process demand changes significantly during the day.

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50. Fan and Blower Benefits

For large fans and blowers, the drive can provide:

• Adjustable airflow
• Smooth starting
• Reduced mechanical shock
• Process-based speed control
• Centralized monitoring
• Automatic adjustment through PLC control

The ability to reduce fan speed when full airflow is not required can also be valuable from an energy-management perspective.

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51. Maintenance Checklist

Inspection Area	Recommended Check
Cooling fans	Check for abnormal noise and operation
Air passages	Check for blockage
Cabinet ventilation	Confirm adequate airflow
Power terminals	Inspect according to maintenance procedure
Grounding	Check grounding continuity
Motor cables	Inspect connections and insulation condition
Network cables	Check connection and communication
Fault history	Review recurring faults
Drive temperature	Check for abnormal heating
Motor current	Compare with expected operating current
Mechanical mounting	Check for vibration and looseness
Cabinet cleanliness	Remove excessive dust
Environmental conditions	Check temperature and humidity
Cooling filters	Inspect where applicable

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52. Typical Troubleshooting Table

Symptom	Possible Area
Motor will not start	Enable command, start command, fault state
Excessive current	Mechanical load, motor wiring, acceleration
Overvoltage during stopping	Deceleration profile, regeneration
Drive overheating	Airflow, ambient temperature, loading
Communication interruption	Network cable, switch, configuration
Motor speed incorrect	Speed reference, scaling, configuration
Repeated overload	Mechanical load or incorrect drive sizing
Unexpected trip	Fault history and control sequence
Excessive electrical noise	Grounding, shielding, cable routing
Excessive mechanical vibration	Motor/load mechanical system

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53. Overall Product Advantages

The major advantages of the 20G11TC460JN0NNNNN can be summarized as follows:

Advantage	Description
High current	460 A normal-duty output
High power	250 kW normal-duty rating
Heavy-duty capability	Approximately 200 kW heavy-duty
Light-duty capability	Approximately 315 kW
Industrial voltage	400 VAC three-phase
Networking	Embedded EtherNet/IP
Cooling	Forced-air cooling
High-power architecture	Frame 8
Flexible speed control	Suitable for variable-speed motor operation
Automation integration	Suitable for PLC/HMI systems
Diagnostics	Useful operational and fault information
Large application range	Pumps, fans, conveyors, process machinery
Centralized control	Suitable for plant-level automation
Large motor compatibility	Designed for high-power industrial motors

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54. Important Points Before Purchasing or Replacing the Drive

When selecting the 20G11TC460JN0NNNNN, the following information should be checked:

1. Motor rated voltage.
2. Motor rated current.
3. Motor power.
4. Motor frequency.
5. Required overload capability.
6. Acceleration time.
7. Deceleration time.
8. Load inertia.
9. Required braking method.
10. Motor cable length.
11. Input electrical system.
12. Cabinet dimensions.
13. Cooling requirements.
14. Communication requirements.
15. Required operator interface.
16. Environmental conditions.
17. Available floor space.
18. Required maintenance access.
19. Required protection equipment.
20. Whether the application requires regenerative operation.

These points are especially important for a large Frame 8 drive.

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55. Final Product Summary

The 20G11TC460JN0NNNNN is a high-power Allen-Bradley PowerFlex 755 AC variable frequency drive designed for large industrial motor-control applications.

Its principal normal-duty specification is:

400 VAC / 3 phase / 460 A / 250 kW

Its heavy-duty rating is approximately:

385 A / 200 kW

Its light-duty capability reaches approximately:

315 kW

The drive uses a Frame 8 high-power construction with forced-air cooling.

It includes embedded EtherNet/IP, making it suitable for integration into modern industrial automation systems.

The configuration includes AC input with precharge, DC terminals, filtered EMC construction and an installed CM jumper.

It is supplied in a blank/no-HIM configuration and does not include an integrated dynamic-braking transistor.

The product is particularly well suited to large:

• Conveyors
• Pumps
• Fans
• Blowers
• Compressors
• Mixers
• Rollers
• Process machines
• Material-handling systems
• Industrial production equipment

The approximate open-drive dimensions are around:

2145 mm × 778 mm × 425 mm

with an approximate open assembly weight of:

286 kg

A complete cabinet arrangement can be significantly larger and heavier, with an approximate weight in the 600–625 kg class, depending on the cabinet and installed options.

For applications requiring additional capacity within the same high-power family, the 20G11TC540JN0NNNNN, 20G11TC567JN0NNNNN, 20G11TC650JN0NNNNN, 20G11TC750JN0NNNNN, and 20G11TC770JN0NNNNN can be considered as comparison models.

For smaller motors, lower-power models in the PowerFlex family are more appropriate and can reduce cabinet space, installation requirements and overall system complexity.

The most important point when selecting the final model is to match the drive to the actual motor nameplate current and application duty, rather than relying only on the nominal kW rating.

For a large industrial motor around the 250 kW normal-duty range, the 20G11TC460JN0NNNNN provides a high-current, network-integrated and flexible variable-speed control solution suitable for demanding automated industrial equipment.