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Allen-Bradley 20G11TE355JN0NNNNN PowerFlex 755 AC Drive – Detailed Product Description, Specifications, Applications, Advantages and Related Models

1. Product Overview

The Allen-Bradley 20G11TE355JN0NNNNN is a high-power PowerFlex 755 AC Drive designed for demanding industrial motor-control applications where reliable speed regulation, substantial motor capacity, network connectivity, and flexible configuration are required.

This model belongs to the PowerFlex 750 family and is configured as an air-cooled, floor-mounted, Frame 8 drive for high-power three-phase AC motor applications. It is rated for a 600 VAC class input and incorporates embedded EtherNet/IP communication, making it suitable for integration into modern industrial automation and plant-wide control architectures.

The drive is designed around a high-capacity power structure and supports three different application duty levels. Depending on the required duty profile, the same drive can be applied to approximately 400 HP Light Duty, 350 HP Normal Duty, or 300 HP Heavy Duty applications.

The catalog number also identifies an important configuration detail: this version is supplied with the CM jumper installed and with filtering configured. This makes the model different from the closely related 20G11TE355AN0NNNNN version, which has the corresponding CM configuration removed.

For large industrial systems, this distinction can be important because grounding, common-mode behavior, EMC requirements, and the overall electrical installation arrangement must be considered when selecting the correct drive configuration.

The model is also supplied as a blank/no-HIM configuration, meaning that a local Human Interface Module is not included as part of the standard catalog configuration. Control, configuration, monitoring, and commissioning can therefore be handled through the available control architecture, communication network, engineering tools, or separately selected interface hardware.

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2. Brand and Series Information

The PowerFlex 755 series is positioned for applications requiring substantially more control flexibility and power-handling capability than compact general-purpose drives.

It is intended for large motors and machinery where drive performance, control architecture, communications, diagnostics, and system integration are important considerations.

The Frame 8 construction places this model in the large-drive category. Consequently, installation requirements are considerably different from those associated with small cabinet-mounted drives. Mechanical handling, cabinet dimensions, ventilation, power cabling, grounding, and service access all need to be considered during system design.

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3. Catalog Number Identification

The catalog number 20G11TE355JN0NNNNN contains configuration information that identifies the drive’s electrical and mechanical arrangement.

The 355 designation is especially important because it identifies the basic current class of the power structure. However, it should not be interpreted as meaning that 355 A is the continuous output current under every operating condition.

The drive has separate Light Duty, Normal Duty, and Heavy Duty ratings, and these ratings determine the appropriate motor size and allowable operating conditions.

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4. Main Technical Specifications

The three duty ratings are one of the most important characteristics of this model.

At the Light Duty rating, the drive can be applied to approximately 400 HP-class motor applications. Under Normal Duty conditions, the rating is approximately 350 HP. Under Heavy Duty conditions, the available continuous current is lower, approximately 295 A, corresponding to approximately 300 HP.

This arrangement allows the same power platform to be matched to different types of mechanical loads instead of forcing every installation into a single fixed horsepower rating.

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5. Current and Horsepower Ratings

The duty classification should always be considered together with the actual motor nameplate, load profile, acceleration requirements, overload requirements, ambient conditions, and application cycle.

A 300 HP motor in a heavy-duty application can impose significantly different demands on a drive than a 300 HP motor operating a relatively stable variable-torque load.

For this reason, simply matching the motor horsepower to the nominal catalog number is not enough. The drive should be selected based on the actual continuous current and overload requirements of the machine.

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6. Dimensions and Weight

Because this is a Frame 8 PowerFlex 755, the physical size is substantially larger than compact PowerFlex drives.

The following figures should be treated as engineering reference dimensions for the applicable Frame 8 construction rather than as a substitute for the dimensional drawing of a particular enclosure configuration.

The weight shown for the open drive assembly and the weight shown for a complete cabinet should not be confused with shipping weight.

A complete installation may contain the power structure, cabinet, control equipment, disconnecting equipment, bus components, options, filters, wiring accessories, and other hardware. The resulting system weight can therefore be considerably higher than the basic drive assembly.

For Frame 8 installations, mechanical handling should be planned before installation begins. Large-frame equipment requires suitable lifting and positioning equipment, adequate floor loading capacity, and sufficient access around the enclosure for maintenance.

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7. Electrical Design Characteristics

The 20G11TE355JN0NNNNN is intended for high-capacity three-phase AC motor systems.

Its 600 VAC class configuration makes it suitable for industrial facilities where higher-voltage motor systems are used to reduce current levels in large motor installations.

At approximately 350 HP and above, electrical distribution becomes an important part of the overall system design. Cable sizing, short-circuit protection, grounding, disconnects, bus arrangements, transformer capacity, and upstream protective devices must all be coordinated with the drive installation.

The drive’s power structure also includes DC terminals, which can be important in systems where DC-bus architecture, regenerative solutions, shared DC systems, or related power configurations are being considered.

The presence of DC terminals does not mean that every installation should use a common DC bus. The actual system architecture must be designed according to the motor application and the applicable electrical requirements.

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8. CM Jumper Installed Configuration

One of the defining characteristics of 20G11TE355JN0NNNNN is the CM jumper installed configuration.

CM refers to common-mode considerations within the drive’s input filtering and grounding arrangement. The configuration affects the way common-mode currents and high-frequency electrical noise are managed within the drive system.

This can have practical importance in industrial installations involving:

• Long motor cables
• Multiple drives
• Sensitive instrumentation
• PLC-based control systems
• Industrial Ethernet networks
• Process measurement equipment
• Large motor systems
• Facilities with strict EMC requirements

The CM jumper configuration should therefore be selected deliberately rather than treated as a minor catalog-number detail.

The closely related 20G11TE355AN0NNNNN uses a different CM configuration, so these two catalog numbers should not automatically be treated as interchangeable without checking the intended electrical installation.

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9. Filtering Configuration

The 20G11TE355JN0NNNNN is configured as a filtered drive.

Filtering is useful in industrial environments where electromagnetic compatibility and electrical noise management are important.

A large variable frequency drive generates high-frequency switching components as part of normal operation. These components can interact with motor cables, control wiring, instrumentation, communication networks, and other equipment if the overall installation is not properly engineered.

The drive filter configuration therefore forms part of a broader EMC strategy that also includes:

• Correct grounding
• Proper bonding
• Appropriate motor cable selection
• Cable routing
• Shield termination
• Separation of power and control wiring
• Correct enclosure construction
• Network cable practices
• Motor-side installation practices

Filtering by itself does not guarantee EMC compliance for an entire machine. The complete installation must be designed correctly.

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10. Embedded EtherNet/IP

Another major feature of the model is its embedded EtherNet/IP communication capability.

For modern automation systems, this is a significant advantage because the drive can become part of the plant control network rather than functioning as an isolated motor controller.

Through the network architecture, drive information can be incorporated into the control system for purposes such as:

• Start and stop commands
• Speed reference
• Status monitoring
• Fault information
• Alarm monitoring
• Drive diagnostics
• Parameter management
• Process data exchange
• Production monitoring
• Maintenance information

This is especially useful in large systems where multiple drives are distributed throughout a machine or production line.

Instead of relying exclusively on local controls, the drive can participate in the overall automation structure.

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11. No Standard HIM Configuration

The catalog number specifies a Blank / No HIM configuration.

HIM means Human Interface Module. A HIM can provide a local interface for setup, monitoring, parameter adjustment, diagnostics, and troubleshooting.

For this particular catalog configuration, a local HIM is not included as part of the standard model.

That does not prevent the drive from being commissioned or controlled. In a networked industrial system, configuration and operation can instead be handled through the control system, engineering software, communication interface, or an appropriate separately selected interface.

This configuration can be attractive in applications where the drive is installed inside a controlled electrical room or cabinet and operators do not require a permanent local keypad.

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12. Cooling System

The model is an air-cooled PowerFlex 755 drive.

Large industrial drives generate significant heat during operation, especially when operating near rated load.

The cooling system is therefore a critical part of installation design.

The enclosure or electrical room must provide an appropriate airflow path and sufficient heat dissipation capacity. Air temperature, dust, humidity, altitude, and contamination should all be considered.

For a high-power Frame 8 installation, inadequate ventilation can lead to elevated internal temperatures, reduced component life, nuisance thermal trips, or reduced drive performance.

The cooling arrangement should be treated as part of the overall electrical design rather than as a secondary installation detail.

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13. Typical Applications

Industrial Conveyors

The 20G11TE355JN0NNNNN is well suited to large conveyor systems used in mining, bulk material handling, aggregate processing, ports, warehouses, and manufacturing plants.

Large conveyors benefit from controlled acceleration and deceleration because sudden motor starting can create mechanical stress on belts, gearboxes, couplings, and drive components.

Variable-speed control also allows conveyor speed to be adjusted according to production requirements.

For long conveyor systems, the drive’s communication capabilities can be integrated into a supervisory control system, allowing operating status, speed, alarms, and faults to be monitored centrally.

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Pumps

Large industrial pumps are another major application.

The drive can regulate pump speed according to process demand, helping the system avoid unnecessary operation at full speed.

Typical applications include:

• Water transfer
• Industrial water systems
• Cooling-water circulation
• Process pumping
• Irrigation systems
• Wastewater handling
• Chemical process circulation
• Large utility pumping systems

Variable-speed operation can provide improved process control compared with fixed-speed motor operation.

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Fans and Blowers

Large fans and blowers often have substantial power requirements.

Variable-speed control allows airflow to be adjusted according to actual process requirements rather than operating continuously at maximum speed.

This can be useful in:

• Industrial ventilation
• Furnace systems
• Dust collection
• Exhaust systems
• HVAC plants
• Process air systems
• Combustion air systems
• Large cooling systems

The drive’s high current capacity makes it appropriate for large motor-driven fan equipment.

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Mining and Bulk Material Handling

Mining operations commonly use high-power motors for crushers, conveyors, pumps, fans, and material-handling equipment.

These applications can experience demanding mechanical conditions, variable loading, long operating hours, and frequent changes in process demand.

A large-frame PowerFlex 755 provides the current capacity and control architecture required for this class of machinery.

The actual suitability depends on the specific motor, mechanical load, starting requirements, environmental conditions, and duty cycle.

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Compressors

Large compressors can require significant motor power and controlled acceleration.

A variable-frequency drive can provide controlled motor starting, adjustable operating speed, and integration with the process control system.

This can be useful for industrial compressed-air systems and process compressors where speed must be adjusted according to demand.

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Process Machinery

The drive can also be used in larger process machinery where controlled motor speed is required.

Potential applications include:

• Mixers
• Agitators
• Large material-processing equipment
• Industrial machine tools
• Process lines
• Production machinery
• Material feeders
• Large winding and handling systems

The flexibility of the PowerFlex 755 platform makes it suitable for systems where the motor is an important part of a larger automated machine.

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14. Major Advantages

High Power Capability

The first major advantage is its large power capacity.

With a Light Duty rating of approximately 395 A and a Normal Duty rating of approximately 355 A, the drive is designed for large industrial motors rather than small machine applications.

This makes it a practical choice for high-power equipment where compact general-purpose drives are not appropriate.

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Three Duty Ratings

The LD, ND, and HD ratings provide useful application flexibility.

This approach allows engineers to select the appropriate motor size based on the actual operating profile rather than relying solely on a single horsepower figure.

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Embedded Industrial Networking

The integrated EtherNet/IP capability is a major advantage in modern automated plants.

The drive can exchange information with the control architecture, making it easier to build centralized monitoring and control systems.

For large plants with numerous drives, network integration can reduce the need for separate point-to-point control arrangements.

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Large-Frame Architecture

The Frame 8 construction provides the physical and electrical capacity needed for high-power applications.

Although the large frame requires more installation space than a compact drive, it also allows the drive to support motor applications that would otherwise require considerably different power-control equipment.

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Flexible Application Control

The PowerFlex 755 architecture is intended for applications where the drive needs to do more than simply change motor speed.

Depending on the overall configuration, the platform can support advanced control, communications, feedback, diagnostics, and system integration.

This makes it appropriate for larger and more sophisticated machines.

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Filtered Configuration

The filtered configuration helps address electromagnetic compatibility requirements as part of a properly engineered installation.

This can be particularly valuable in plants containing sensitive control electronics, instrumentation, industrial networks, and multiple variable-frequency drives.

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Suitable for Large Industrial Systems

The combination of 600 VAC operation, large current capacity, Frame 8 construction, EtherNet/IP connectivity, and PowerFlex 755 control architecture makes the model suitable for substantial industrial installations.

It is not designed as a small standalone motor controller. Its real strength is in larger systems where the drive forms part of a complete automation and power-distribution architecture.

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15. Installation Considerations

Because the drive is a Frame 8 unit, installation planning should begin well before the equipment reaches the site.

The required cabinet or enclosure footprint can be substantial.

Adequate clearance must be provided for:

• Power cable installation
• Control wiring
• Network connections
• Ventilation
• Service access
• Component replacement
• Inspection
• Maintenance
• Safe isolation procedures

Large-frame PowerFlex 755 installations may require specialized handling equipment. Frame 8–10 drive installations are also associated with roll-out handling equipment to assist with power wiring and cabinet mounting.

The physical installation should therefore be coordinated between electrical engineering, mechanical engineering, plant maintenance, and the installation contractor.

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16. Motor Cable and Grounding Considerations

At this power level, motor cable selection becomes an important engineering issue.

Long motor cables can increase the electrical stress on the motor insulation system and can contribute to common-mode current and reflected-wave effects.

The installation should therefore use cable and grounding practices appropriate for variable-frequency-drive applications.

Attention should be paid to:

• Motor cable construction
• Cable length
• Shielding
• Ground conductor arrangement
• Cable routing
• Motor frame bonding
• Drive enclosure bonding
• Control cable separation
• Network cable routing

A properly engineered grounding system is particularly important when the drive is installed together with sensitive instrumentation and communications equipment.

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17. Maintenance Advantages

Large industrial drives are expected to operate for long periods, often in production environments where downtime is expensive.

The PowerFlex 755 architecture provides access to drive status and diagnostic information through its control and communication capabilities.

Maintenance personnel can use drive status, alarms, faults, operating information, and network data to identify potential problems more efficiently.

This can support a more structured maintenance strategy rather than relying exclusively on physical inspection after a failure occurs.

For high-power installations, preventive maintenance should include inspection of cooling paths, electrical connections, cabinet conditions, grounding, cable terminations, and environmental conditions.

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18. Related Models in the Same PowerFlex 755 Family

The following models are closely related to 20G11TE355JN0NNNNN and belong to the same 600 VAC PowerFlex 755 family.

These models are useful alternatives when the required motor current is higher or lower than the 20G11TE355JN0NNNNN.

The selection should be based on actual motor full-load current and application duty rather than horsepower alone.

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19. Five Closely Related Models Recommended for Comparison

1. 20G11TE295JN0NNNNN

The 20G11TE295JN0NNNNN is the lower-current model immediately below the 355-class drive.

It is a good comparison when the motor application falls below the current requirement of the 20G11TE355JN0NNNNN.

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2. 20G11TE395JN0NNNNN

The 20G11TE395JN0NNNNN moves to the next higher current level.

It is appropriate for installations requiring additional current capacity while retaining the same general 600 VAC Frame 8 PowerFlex 755 architecture.

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3. 20G11TE435JN0NNNNN

This model provides another increase in current capacity and is intended for larger motor applications.

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4. 20G11TE460JN0NNNNN

The 20G11TE460JN0NNNNN is a higher-capacity Frame 8 configuration suitable for applications where the motor current exceeds the practical range of the 355-class unit.

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5. 20G11TE510JN0NNNNN

The 20G11TE510JN0NNNNN is one of the higher-capacity Frame 8 choices in this group.

It is designed for substantially larger motor applications and provides greater current capability while retaining the PowerFlex 755 platform.

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20. Directly Related Alternative: 20G11TE355AN0NNNNN

A particularly important comparison is the 20G11TE355AN0NNNNN.

This model has the same principal 600 VAC, Frame 8, 355-class power structure and similar duty ratings, but its CM configuration differs.

The two models should therefore be distinguished primarily by the CM configuration rather than by their basic horsepower or current capability.

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21. Five Popular Allen-Bradley Models for Comparison

If the objective is to compare the PowerFlex 755 with other commonly used Allen-Bradley variable-frequency drives, the following models represent different drive sizes and application classes.

These models are not direct electrical replacements for the 20G11TE355JN0NNNNN.

They belong to different power ranges and application categories, and the correct choice depends heavily on motor current, voltage, control requirements, communications, enclosure, environmental conditions, and duty cycle.

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22. PowerFlex 755 Compared With Compact Drives

The difference between the 20G11TE355JN0NNNNN and compact drives becomes obvious when looking at the intended application.

A compact PowerFlex drive may be appropriate for a small conveyor, pump, fan, packaging machine, or machine tool.

The 20G11TE355JN0NNNNN is intended for a completely different scale of equipment.

It is designed for large motors where electrical current can reach several hundred amperes and where the drive becomes a significant part of the plant’s electrical infrastructure.

The large Frame 8 cabinet requirements, mechanical handling requirements, cooling requirements, and power-distribution considerations reflect this difference.

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23. Recommended Application Selection

The model makes the most sense where the motor and mechanical system genuinely require a high-power drive.

Using a Frame 8 drive for a small motor would normally result in unnecessary equipment cost, cabinet space, installation complexity, and maintenance requirements.

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24. Engineering Advantages for Large Plants

One of the strongest advantages of this drive is its suitability for centralized automation architectures.

In a large factory, there may be dozens or hundreds of motors operating different sections of a production line.

With integrated industrial communication, drive status and operating information can become part of the larger control system.

This allows engineers to build a structured automation environment in which the motor controller, PLC, HMI, supervisory system, and maintenance personnel can all work with the same operating information.

For production facilities, this can improve visibility into equipment behavior and make troubleshooting more systematic.

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25. Maintenance and Service Considerations

A large Frame 8 drive should be treated as a major electrical asset.

Routine inspection should include checking the cooling system, electrical connections, cabinet condition, grounding, ventilation, and signs of overheating or contamination.

The installation environment is particularly important.

Dust accumulation can restrict airflow, while excessive humidity or contamination can negatively affect electrical components.

Maintenance personnel should also inspect cable terminations and power connections according to the applicable maintenance procedures and torque requirements.

Network connections should be checked when communication-related problems occur, particularly where multiple industrial devices share the same control network.

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26. Spare Parts and System Planning

For a high-power installation, spare-parts planning can be more important than it is for small drives.

A production line may depend on a single large drive controlling a critical conveyor, pump, fan, or processing machine.

Before commissioning, it is therefore useful to identify:

• Critical replacement components
• Control components
• Communication hardware
• Cooling components
• Interface equipment
• Fuses and protective devices
• Power connections
• Required service equipment
• Recommended maintenance intervals

The exact spare-parts strategy should be based on the plant’s criticality assessment and maintenance philosophy.

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27. Important Selection Points

Before ordering or replacing a 20G11TE355JN0NNNNN, the following information should be checked carefully.

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28. Overall Technical Summary

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29. Final Product Assessment

The Allen-Bradley 20G11TE355JN0NNNNN PowerFlex 755 AC Drive is a high-capacity industrial variable-frequency drive intended for large three-phase motor applications.

Its main strengths are the combination of 600 VAC operation, Frame 8 construction, high current capacity, three selectable duty ratings, embedded EtherNet/IP, filtered configuration, CM jumper installed, and the flexible control architecture associated with the PowerFlex 755 platform.

The 395 A Light Duty rating provides approximately 400 HP of application capacity, while the 355 A Normal Duty rating corresponds to approximately 350 HP and the 295 A Heavy Duty rating corresponds to approximately 300 HP.

This makes the drive particularly useful when the application requires a substantial motor and the operating conditions vary between normal industrial duty and more demanding heavy-duty operation.

The embedded EtherNet/IP capability is another important advantage. In a modern production environment, the drive can be incorporated into the plant’s automation network, allowing motor operating information, commands, alarms, and diagnostics to be coordinated with the wider control system.

The CM jumper installed configuration is also an important distinguishing feature. When comparing this drive with the closely related 20G11TE355AN0NNNNN, engineers should verify the required common-mode and EMC configuration rather than treating the two catalog numbers as identical.

From a mechanical perspective, this is a substantial piece of equipment. The Frame 8 configuration requires considerably more installation space than compact variable-frequency drives, and the approximate open drive assembly weight of 286 kg means that mechanical handling must be planned carefully.

For cabinet installations, the overall dimensions and weight can be substantially greater, particularly when the drive is supplied as part of a complete MCC-style or Type 12 enclosure.

The model is best suited to large conveyors, mining equipment, high-capacity pumps, industrial fans, blowers, compressors, bulk material handling systems, process machinery, and other applications where motor power, controlled acceleration, industrial networking, and reliable variable-speed operation are important.

For applications requiring slightly less or more current, the closely related 20G11TE295JN0NNNNN, 20G11TE395JN0NNNNN, 20G11TE435JN0NNNNN, 20G11TE460JN0NNNNN, and 20G11TE510JN0NNNNN provide useful alternatives within the same PowerFlex 755 600 VAC family.

Overall, the 20G11TE355JN0NNNNN is best regarded as a large industrial drive platform rather than simply a high-horsepower speed controller. Its value lies in combining high-power motor control with industrial communication, configurable drive architecture, substantial duty capability, and integration into larger automation systems.