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20BP730N0NNNNNC0 Product Overview, Specifications, Applications and Related Models

The 20BP730N0NNNNNC0 is a high-power AC drive from the PowerFlex 700 family. It is designed for large industrial motor-control applications where high current capacity, stable speed regulation, and reliable variable-frequency motor control are required.

This particular catalog number represents a high-capacity drive configuration with a 730 A current rating and approximately 400 kW normal-duty power capability. It is an older-generation industrial drive and is best considered when maintaining existing installations, replacing an installed unit, or matching an existing PowerFlex 700 system rather than when designing a completely new system.

The product belongs to the PowerFlex 700 AC Drive series, with the broader catalog family designated 20B.

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1. Basic Product Information

The N0NNNNNC0 portion of the catalog number indicates a particular option configuration rather than simply being an arbitrary suffix. In practical terms, this is a relatively basic high-power configuration without several optional functions such as a HIM, feedback interface, internal brake resistor, and communication module.

For an existing machine, it is important to match the complete catalog number rather than selecting another 730 A drive solely because its current rating is similar.

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2. Product Introduction

The 20BP730N0NNNNNC0 is intended for applications in which a conventional fixed-speed motor starter is not sufficient and the motor needs controlled acceleration, deceleration, speed regulation, or torque control.

At 730 A, this is not a small machine drive. It belongs to the high-power end of the PowerFlex 700 range and is intended for large motors and heavy industrial equipment.

The normal-duty rating is approximately 400 kW, while the heavy-duty rating is approximately 350 kW. The difference between normal-duty and heavy-duty ratings is important because the permissible continuous and overload current depends on the application profile.

For example, a machine that runs continuously at a relatively stable load can be evaluated differently from a conveyor, crusher, hoist, mixer, or process machine that repeatedly accelerates against a heavy load.

The drive is particularly suited to installations where precise motor-speed regulation is required without continuously operating the motor at full speed.

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3. Main Technical Parameters

Important note regarding dimensions and weight

For this particular high-power 20B configuration, dimensions and weight should not be treated as interchangeable with smaller PowerFlex 700 models.

The catalog number identifies the electrical configuration, while the actual mechanical arrangement can involve a large-frame assembly and installation hardware. Therefore, when planning a replacement, cabinet, lifting equipment, shipping arrangement, or mounting structure, the exact mechanical drawing and nameplate configuration should be checked.

I would not recommend inventing a precise height × width × depth or kilogram figure for this model when the exact enclosure/build configuration is not established. A false mechanical figure is much more problematic than stating that the value requires confirmation.

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4. Catalog Number Interpretation

The model number can be viewed as a series of option selections.

The most important part for identification is the combination of 20B + P + 730 A + the complete suffix.

Two drives with the same 730 A rating can still have different input configurations, control options, feedback functions, communication capabilities, braking arrangements, or filtering.

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5. Product Functions

5.1 Variable-Speed Motor Control

The main purpose of the 20BP730N0NNNNNC0 is to control the speed and operating characteristics of a large AC motor.

Instead of connecting the motor directly to a fixed-frequency power supply, the drive controls the electrical conditions supplied to the motor.

This allows the machine to operate at different speeds according to the production requirement.

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5.2 Vector Control

The unit uses vector-oriented control technology.

For large industrial motors, vector control is useful because it can provide better control of motor torque and speed than basic scalar speed control.

This is especially useful when the load changes during operation.

Typical examples include conveyors carrying different loads, pumps operating over changing flow conditions, large fans, compressors, mixers, and other machines where the motor needs controlled operation rather than simply ON/OFF switching.

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5.3 Controlled Acceleration

A large motor can draw significant current when started directly across the line.

Using a drive allows the motor to accelerate in a controlled manner.

The acceleration ramp can reduce mechanical shock and avoid abrupt torque transmission through gearboxes, couplings, shafts, belts, and other mechanical components.

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5.4 Controlled Deceleration

The same principle applies when stopping.

Rather than allowing the motor to stop abruptly, the drive can provide a controlled deceleration profile.

This can improve machine stability and reduce unnecessary mechanical stress.

Because this particular configuration does not include an internal brake resistor, applications requiring aggressive regenerative braking should be evaluated separately and may require an appropriate external braking or regenerative solution.

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6. Product Applications

The 20BP730N0NNNNNC0 is intended for large-scale industrial equipment.

Conveyor Systems

Large conveyors are a natural application for high-current variable-frequency drives.

The drive can control conveyor speed according to production requirements while providing controlled acceleration.

This can reduce belt shock and help prevent excessive mechanical loading during startup.

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Pumps

Large process pumps can benefit from variable-speed operation.

Instead of running the motor continuously at full speed and throttling the process mechanically, the drive can adjust motor speed according to the required operating point.

This can improve process control and potentially reduce energy consumption.

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Fans and Blowers

Large industrial fans often do not need to operate at maximum speed continuously.

Variable-speed operation allows the motor to follow the actual ventilation or process demand.

This can be particularly valuable in large ventilation systems and industrial process plants.

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Compressors

Large compressors require carefully controlled motor operation.

The high current capacity of this drive makes the family relevant to high-power compressor systems, although the exact suitability depends on compressor type, starting requirements, load profile, and required control functions.

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Mixers and Agitators

Industrial mixers can experience substantial torque requirements during startup.

Vector control and controlled acceleration can provide smoother operation and reduce mechanical stress.

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Material Handling Equipment

Large material-handling machines can require high starting torque and controlled speed.

The drive can be used to regulate motor speed and coordinate machine operation.

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Process Machinery

The PowerFlex 700 family was widely used in process-oriented industrial machinery.

Examples include:

• Large pumps
• Fans
• Blowers
• Conveyors
• Mixers
• Compressors
• Material handling equipment
• Industrial processing machines
• Large rotating machinery
• High-power production equipment

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7. Main Advantages

7.1 Very High Current Capacity

The most obvious advantage of this model is its 730 A rating.

This places it in a completely different class from ordinary low-power variable-frequency drives.

It is intended for large motors and demanding industrial loads.

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7.2 High Motor Power Capability

With approximately 400 kW normal-duty capability, the drive can control substantial motor loads.

This makes it appropriate for industrial installations where replacing a large fixed-speed motor starter with a variable-speed drive is required.

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7.3 Vector Control

Vector control provides better control of motor speed and torque than basic V/Hz control.

For applications where load conditions change frequently, this can be a significant advantage.

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7.4 Controlled Starting

Large motors can impose considerable electrical and mechanical stress during direct starting.

The drive provides controlled acceleration, allowing the motor to ramp up instead of immediately jumping to operating speed.

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7.5 Improved Process Control

Variable-speed operation gives the machine a wider operating range.

For many applications, speed can be adjusted according to production requirements rather than operating permanently at a fixed speed.

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7.6 Suitable for Existing Industrial Systems

One of the strongest practical reasons for selecting this model today is compatibility with an existing PowerFlex 700 installation.

If a plant already contains 20B-series drives, maintaining the same family can simplify replacement and reduce the amount of engineering modification required.

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8. Limitations and Selection Considerations

The 20BP730N0NNNNNC0 is a specialized high-power drive, so it should not be selected simply because the motor has a similar kilowatt rating.

Several factors should be checked.

Motor Voltage

The motor voltage and drive output requirements must be compatible.

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Motor Current

Motor full-load current should be compared with the drive’s continuous current and overload capability.

The motor’s actual rated current is more important than simply comparing motor kW with drive kW.

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Duty Cycle

Normal-duty and heavy-duty applications have different requirements.

A machine with frequent high-torque acceleration may require a different rating from a continuously operating fan or pump.

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Braking

The selected configuration does not include an internal brake resistor.

If the machine requires rapid deceleration or frequent braking, an appropriate braking solution must be evaluated.

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Mechanical Installation

Because this is a large high-current drive, cabinet space, ventilation, cable routing, clearances, heat dissipation, and lifting arrangements need to be considered.

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9. Five Related Models from the Same Family

The following models are useful references when comparing products within the 20B / PowerFlex 700 family.

The exact option suffix should always be matched to the intended application.

The 20BC730N0NNNNNC0 is particularly important as a comparison because it retains the 730 A current class while using a different input-voltage configuration. It should not be considered a drop-in replacement for the 20BP730N0NNNNNC0 without checking the complete electrical system.

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10. Comparison of the Main Related Models

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11. Five Popular Models from the Same Brand

For broader comparison, the following models represent commonly encountered products from the same industrial automation brand. They cover different power levels and product generations.

*The weight shown for the 20DD730N0NNNBCASE is associated with a particular packaged/configured product listing. It should not be used as the weight of the 20BP730N0NNNNNC0.

For the other models, a single universal kilogram value would be misleading because enclosure type, frame, options, packaged construction, and installation configuration can change the actual mechanical dimensions and shipping weight.

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12. Brand and Product-Series Position

The PowerFlex family is widely associated with industrial motor control, while the PowerFlex 700 series was positioned toward applications requiring more sophisticated motor control than simple general-purpose drives.

The 20BP730N0NNNNNC0 sits toward the high-power end of this family.

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13. Why the 20BP730N0NNNNNC0 Can Still Be Relevant

Although this model is from an older generation, its relevance does not necessarily disappear when the product generation becomes old.

Large industrial facilities frequently operate machinery for many years.

A production line may have been designed around a particular drive family, motor-control architecture, cabinet layout, field wiring scheme, and control philosophy.

Replacing one drive with a completely different product family can therefore involve much more than changing the drive itself.

It may require:

• Control-system modifications
• New wiring
• New communication architecture
• Cabinet modifications
• New protection arrangements
• Motor-control reconfiguration
• PLC program changes
• HMI changes
• Commissioning
• Operator retraining
• New spare-parts strategy

For this reason, an exact-match 20BP730N0NNNNNC0 can be valuable for maintaining an established machine.

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14. Recommended Selection Strategy

If the objective is direct replacement, the first choice should normally be the same complete catalog number:

20BP730N0NNNNNC0

If the exact model is unavailable, the next step should not simply be selecting another 730 A drive.

Instead, compare the following items:

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15. Practical Application Example

Consider a large conveyor driven by a 400 kW motor.

With a conventional fixed-speed starter, the motor is essentially limited to the operating speed determined by the supply frequency and motor characteristics.

With a variable-frequency drive, the conveyor can operate at different speeds.

During startup, the drive can gradually increase motor speed.

During normal operation, the speed can be adjusted according to production requirements.

During stopping, the drive can provide controlled deceleration.

This can improve the overall behavior of the machine and reduce mechanical shock.

For a high-power conveyor, however, the motor’s actual full-load current, acceleration time, belt loading, stopping requirements, and duty cycle must all be considered before selecting the final drive.

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16. Overall Advantages at a Glance

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17. Important Difference Between Related Catalog Numbers

A particularly important point is that similar-looking catalog numbers do not necessarily mean electrically interchangeable products.

For example:

20BP730N0NNNNNC0

and

20BC730N0NNNNNC0

both contain the number 730, indicating the same general current class, but their voltage/input configurations are different.

Therefore, selecting a replacement based only on the 730 A rating would be unsafe.

Likewise, changing from a 600 A model to a 730 A model is not automatically an upgrade. The drive must be compatible with the motor, incoming power system, control architecture, protection system, cabinet arrangement, and application duty.

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18. Condensed Product Specification

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19. Final Product Assessment

The 20BP730N0NNNNNC0 is a high-power PowerFlex 700 AC drive in the 20B series, with a 730 A current rating and approximately 400 kW normal-duty capability.

Its main strengths are its high current capacity, vector-control capability, controlled acceleration and deceleration, and suitability for large industrial motors.

It is especially relevant to large conveyors, pumps, fans, compressors, mixers, material-handling systems, and other industrial machines requiring variable-speed operation.

For an existing installation, the biggest advantage can be continuity: maintaining the same drive family may reduce the engineering work associated with replacing an installed high-power drive.

At the same time, this is an older, discontinued product, so purchasing or replacement decisions should be made carefully. The complete catalog number, electrical configuration, motor rating, duty cycle, braking requirements, control interface, physical dimensions, and actual equipment weight all need to be checked together.

For the mechanical parameters in particular, dimensions and weight should be confirmed from the exact unit’s mechanical configuration rather than estimated from the electrical catalog number. This is especially important for a 730 A high-power drive because installation and transportation requirements can be substantial.