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20BC105A0NNNANC0 AC Drive — Detailed Product Information, Technical Parameters, Applications, Advantages and Related Models

1. Product Overview

The 20BC105A0NNNANC0 is a high-power industrial AC variable-frequency drive belonging to the PowerFlex 700 series.

This model is designed for three-phase industrial motor applications requiring adjustable speed, controlled acceleration and deceleration, reliable torque control, and stable operation under changing load conditions.

The drive is intended for a 400 V-class three-phase power supply, with an output current rating of 105 A. Its normal-duty power rating is approximately 55 kW, while the heavy-duty rating is approximately 45 kW.

The configuration represented by 20BC105A0NNNANC0 includes vector control, 24 V I/O, EMC filtering and a common-mode choke, while it does not include an internal brake resistor, brake IGBT or feedback option.

This combination makes the model particularly suitable for industrial machinery such as conveyors, pumps, fans, blowers, material-handling systems, process equipment and general-purpose production machinery where relatively high motor power is required.

The model uses an IP20 / NEMA Type 1 enclosure arrangement and is intended to be installed in an appropriate electrical cabinet or protected industrial location rather than exposed directly to outdoor weather or water.

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2. Brand and Product Series

Item	Information
Brand	Allen-Bradley
Product family	PowerFlex 700 AC Drive
Series	PowerFlex 700
Product type	Variable Frequency Drive / AC Drive
Drive category	Industrial AC motor drive
Catalog number	20BC105A0NNNANC0
Voltage class	400 V AC
Control type	Vector Control
Frame	Frame 5
Protection	IP20 / NEMA Type 1
Application level	Industrial / heavy industrial
Motor control	Three-phase AC motor
Normal-duty rating	55 kW
Heavy-duty rating	45 kW

The PowerFlex 700 series is positioned as an industrial motor-control platform rather than a small compact inverter family. Its design emphasizes motor-control performance, configurable I/O, industrial integration and flexibility for larger machinery.

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3. Main Technical Parameters

Parameter	20BC105A0NNNANC0
Model	20BC105A0NNNANC0
Brand	Allen-Bradley
Series	PowerFlex 700
Product type	AC Variable Frequency Drive
Input voltage	380–480 V AC
Nominal input voltage	400 V AC
Input phase	3 phase
Output phase	3 phase
Rated output current	105 A continuous
Short-duration current capability	Approx. 116 A for 1 minute
Peak overload capability	Approx. 158 A for 3 seconds
Normal-duty power	55 kW
Heavy-duty power	45 kW
Input frequency	50 Hz nominal
Input frequency tolerance	Approximately 47 Hz minimum
Output frequency	Up to approximately 420 Hz
Control method	Vector control
Control voltage	24 V
Digital inputs	6
Digital outputs	3
Analog inputs	2
Analog outputs	2
EMC filter	Yes
Common-mode choke	Yes
Feedback option	No feedback
Brake IGBT	Without
Internal brake resistor	No
Internal communication module	No
Enclosure	IP20
NEMA enclosure	Type 1
Frame size	Frame 5
Nominal motor voltage	400 V
Efficiency	Approximately 97.5% at rated current and nominal line voltage
Maximum altitude without derating	Approximately 1,000 m
Operating temperature	Up to approximately 50 °C under specified conditions
Storage temperature	Approximately -40 °C minimum
Relative humidity	5–95%, non-condensing
Shock resistance	Approximately 15 G peak
Vibration resistance	Approximately 1 G peak
Approximate dimensions	Approx. 600 × 350 × 300 mm (H × W × D)
Approximate weight	Approx. 27 kg

The dimensions and weight are intended as practical reference values for equipment planning. The exact mechanical drawing, mounting arrangement, terminal position and required cabinet clearance should be checked before manufacturing a control cabinet or mounting plate.

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4. Electrical Rating Explained

The most important electrical characteristic of the 20BC105A0NNNANC0 is its 105 A output-current rating.

This places it in a substantially higher power class than smaller PowerFlex drives.

For a 400 V three-phase system, the model is intended for applications where the motor requires a significant amount of current. Its normal-duty rating reaches approximately 55 kW, while the heavy-duty rating is approximately 45 kW.

The distinction between normal duty and heavy duty is important.

Normal-duty applications generally have a relatively moderate overload requirement. Heavy-duty applications can impose higher starting torque, acceleration torque or temporary overload conditions.

Therefore, the correct selection should be based on the motor nameplate current and actual load characteristics, rather than simply matching the motor’s kW value.

For example, a 45 kW motor operating under a demanding constant-torque load may require more consideration than a 55 kW motor driving a relatively light variable-torque application.

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5. Product Configuration

The catalog number 20BC105A0NNNANC0 represents a particular configuration within the PowerFlex 700 family.

The important configuration characteristics are summarized below.

Configuration	20BC105A0NNNANC0
Voltage class	400 V
Current class	105 A
Normal-duty rating	55 kW
Heavy-duty rating	45 kW
Vector control	Yes
24 V I/O	Yes
EMC filter	Included
Common-mode choke	Included
Feedback	None
Brake IGBT	None
Internal brake resistor	None
HIM/display	Blank/no standard operator interface configuration
Communication module	None installed as standard
Enclosure	IP20 / Type 1

This configuration is therefore a relatively straightforward high-power vector drive.

It provides the fundamental motor-control functions required by many industrial machines without adding an internal braking system or feedback interface.

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6. Product Introduction

The purpose of the 20BC105A0NNNANC0 is to control the electrical power delivered to a three-phase AC motor.

A conventional fixed-frequency motor starter generally provides only basic start and stop control. By contrast, an AC drive allows the motor’s operating frequency and voltage to be controlled, making it possible to adjust motor speed according to the actual process requirement.

This is particularly valuable in industrial systems where the motor does not need to operate at one fixed speed all the time.

For example, a conveyor may need a slow speed during loading and a higher speed during normal transportation. A pump may require different speeds depending on process demand. A fan may need to adjust airflow according to ventilation requirements.

The drive provides the electrical interface between the incoming three-phase power and the motor. It converts the incoming power into a controlled output suitable for variable-speed motor operation.

The PowerFlex 700 architecture also provides configurable control inputs and outputs, allowing the drive to work as part of a larger automation system.

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7. Vector Control

One of the major characteristics of this product is its vector-control capability.

Vector control is designed to provide more sophisticated motor control than basic scalar V/Hz control.

In practical terms, vector control can provide better control of motor torque and speed, especially when the load changes.

This can be particularly useful in applications such as:

• Conveyors
• Material handling
• Mixers
• Large pumps
• Industrial fans
• Process machinery
• Mechanical production equipment
• Machines requiring controlled acceleration

The actual performance depends on the motor, drive configuration, motor data, tuning and application conditions.

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8. Product Applications

8.1 Conveyor Systems

The 20BC105A0NNNANC0 is well suited to large conveyor applications.

Conveyors frequently require controlled starting because an immediate full-voltage start can create mechanical shock.

Using an AC drive allows the motor to accelerate progressively.

This can reduce stress on:

• Gearboxes
• Couplings
• Conveyor belts
• Chains
• Rollers
• Bearings
• Mechanical transmission systems

The speed can also be adjusted to match the production process.

For example, the conveyor can operate at a lower speed during loading and increase speed during continuous transportation.

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8.2 Pumps

Large industrial pumps are another suitable application.

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

Applications may include:

• Industrial water circulation
• Process-water systems
• Cooling-water systems
• Transfer pumps
• Industrial treatment systems
• Chemical process pumps
• Utility pumping systems

When a pump does not need to run at full speed continuously, variable-speed operation can provide greater process flexibility and may reduce energy consumption.

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8.3 Fans and Blowers

The drive can also be used with large industrial fans and blowers.

Typical applications include:

• Factory ventilation
• Exhaust systems
• Industrial air handling
• Dust collection
• Process ventilation
• Large cooling systems

Fan and blower applications are often well suited to variable-speed control because the required airflow can change during production.

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8.4 Material Handling

Material-handling machinery often requires controlled acceleration, speed regulation and stable operation under varying loads.

The drive can therefore be considered for:

• Transfer conveyors
• Production-line conveyors
• Material feeders
• Roller systems
• Industrial handling machines
• Large automated material systems

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8.5 Industrial Processing Machinery

The drive can be applied to equipment where a relatively large AC motor must operate at adjustable speeds.

Examples include:

• Mixers
• Agitators
• Process machinery
• Large mechanical drives
• Production equipment
• Industrial auxiliary machinery

The suitability depends on the torque curve, overload requirement and braking requirements of the individual machine.

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9. Main Product Advantages

9.1 High 105 A Current Capacity

The 105 A continuous output rating is one of the most important advantages of this model.

It places the drive in a high-capacity class suitable for substantial industrial motors.

This is useful where smaller drives cannot provide sufficient continuous current or overload capacity.

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9.2 55 kW Normal-Duty Capability

With approximately 55 kW normal-duty capacity, the drive can support relatively large industrial machinery.

This makes it useful for applications where motor power requirements are considerably higher than those encountered in small machine automation.

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9.3 45 kW Heavy-Duty Capability

The approximately 45 kW heavy-duty rating is also significant.

Heavy-duty applications can involve higher starting torque, acceleration torque or temporary overload.

For these applications, the current rating and duty category are more meaningful than simply comparing motor horsepower.

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9.4 Vector Control

Vector control provides a more advanced method of controlling the motor.

For applications where speed stability and torque response are important, this can be a significant advantage.

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9.5 EMC Filter and Common-Mode Choke

The specified configuration includes an EMC filter and common-mode choke.

This is valuable in industrial cabinets containing sensitive electronics.

Drive systems can generate electrical disturbances as a result of high-frequency switching. Proper EMC design helps reduce the potential for these disturbances to affect other equipment.

This is particularly relevant when the same cabinet contains:

• PLCs
• Analog instruments
• Sensors
• Communication equipment
• Measurement equipment
• Operator interfaces

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9.6 Flexible I/O

The drive provides:

I/O	Quantity
Digital inputs	6
Digital outputs	3
Analog inputs	2
Analog outputs	2

This provides useful flexibility for traditional hardwired control systems.

For example, digital inputs can be assigned to commands such as:

• Start
• Stop
• Forward
• Reverse
• Preset speed
• Fault reset

Analog inputs can be used for speed references or other continuously variable control signals.

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10. Braking Characteristics

The 20BC105A0NNNANC0 does not include a brake IGBT and does not include an internal brake resistor.

This is an important point when evaluating the model.

A machine with a large rotating mass may generate regenerative energy during deceleration.

If the application requires rapid stopping, the braking system needs to be considered separately.

Typical applications requiring additional braking evaluation include:

• High-inertia fans
• Large rollers
• Rapid-stop conveyors
• Certain vertical machines
• High-speed rotating machinery
• Frequent acceleration/deceleration applications

The absence of an internal brake system does not prevent the drive from being used in these applications, but it means that the braking solution must be designed appropriately.

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11. Feedback Configuration

This model is configured with no feedback option.

For many general-purpose speed-control applications, feedback is not required.

However, some applications require encoder feedback because the machine needs more precise speed or position control.

Examples include:

• Precision winding
• Certain hoisting systems
• Position-controlled machinery
• High-performance speed regulation
• Applications where motor speed must remain tightly controlled under changing loads

If encoder feedback is required, a different configuration should be considered.

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12. Communication Considerations

The 20BC105A0NNNANC0 does not include an internal communication module as part of this specific configuration.

This is relevant when integrating the drive with an automation network.

The drive can be incorporated into larger control architectures using the appropriate communication hardware and configuration.

When selecting a replacement or alternative model, the following should be checked:

Control requirement	Selection consideration
Start/stop from PLC	Digital I/O or network
Speed command	Analog input or network
Drive status	Digital output or network
Fault information	Digital output or network
Parameter control	Communication interface
Remote diagnostics	Communication interface
Encoder feedback	Feedback option
Rapid braking	Braking hardware

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13. Dimensions and Weight

Physical size is especially important for a 105 A industrial drive.

Mechanical parameter	Approximate value
Model	20BC105A0NNNANC0
Frame size	Frame 5
Enclosure	IP20 / NEMA Type 1
Height	Approx. 600 mm
Width	Approx. 350 mm
Depth	Approx. 300 mm
Approx. dimensions	600 × 350 × 300 mm
Approx. weight	27 kg
Cooling	Forced-air
Installation	Electrical cabinet / protected panel
Outdoor direct exposure	Not recommended

The dimensions should be treated as an engineering reference rather than a substitute for the exact mechanical drawing.

For cabinet construction, additional clearance may be required for airflow, power terminals, control wiring, cable bending, maintenance access and heat dissipation.

The actual shipping weight can also be greater than the equipment weight because packaging and accessories are not necessarily included in the nominal product weight.

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14. Environmental Characteristics

Environmental parameter	Approximate specification
Operating temperature	Up to approximately 50 °C under specified conditions
Storage temperature	Approximately -40 °C minimum
Relative humidity	5–95%, non-condensing
Maximum altitude without derating	Approx. 1,000 m
Protection	IP20
NEMA rating	Type 1
Shock	Approx. 15 G peak
Vibration	Approx. 1 G peak

Because the enclosure is IP20, the drive should be protected from direct water exposure and excessive dust.

For harsh industrial environments, the cabinet and ventilation system should be selected according to the environmental conditions of the installation.

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15. Five Recommended Models from the Same Series or Closely Related Configurations

The following models are useful comparison candidates when looking for alternatives within the PowerFlex 700 family.

The exact suffix matters because braking, feedback, communication and filtering can differ between otherwise similar models.

Model	Series	Voltage	Current	Normal-Duty Power	Heavy-Duty Power	Brake	Feedback	Protection	Approx. Dimensions	Weight kg
20BC085A0NNNANC0	PowerFlex 700	400 V	85 A	45 kW	Approx. 37 kW	No	No	IP20	Approx. 460 × 250 × 300 mm	11.1
20BC105A0NNNANC0	PowerFlex 700	400 V	105 A	55 kW	45 kW	No	No	IP20	Approx. 600 × 350 × 300 mm	Approx. 27
20BC105A0NNANA0	PowerFlex 700	400 V	105 A	55 kW	45 kW	No	No	IP20	Approx. 600 × 350 × 300 mm	Approx. 27
20BC105A0ANNANC0	PowerFlex 700	400 V	105 A	55 kW	45 kW	No	No	IP20	Approx. 600 × 350 × 300 mm	Approx. 27
20BC105A0AYNACC0	PowerFlex 700	400 V	105 A	55 kW	45 kW	Yes	No	IP20	Approx. 600 × 350 × 300 mm	Approx. 27
20BC105A0AYNADB0	PowerFlex 700	400 V	105 A	55 kW	45 kW	Yes	No	IP20	Approx. 600 × 350 × 300 mm	Approx. 27

The 20BC085A0NNNANC0 is a lower-current related model, while the other 105 A configurations are closer electrical alternatives.

The models containing a braking configuration should not be regarded as identical replacements for the non-braking version. Their additional braking hardware can make them more appropriate for applications involving regenerative energy.

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16. Five Popular Related Models for Broader Selection

For users who want to compare this product with other models from the same brand and industrial drive range, the following products are useful reference points.

Model	Series	Voltage Class	Approx. Current Class	Approx. Power Class	Control	Protection	Typical Application	Approx. Dimensions	Weight kg
20BC085A0NNNANC0	PowerFlex 700	400 V	85 A	45 kW	Vector	IP20	Conveyors, pumps, fans	460 × 250 × 300 mm	11.1
20BC105A0NNNANC0	PowerFlex 700	400 V	105 A	55 kW	Vector	IP20	Large industrial machinery	600 × 350 × 300 mm	Approx. 27
20BD080A3AYNANC0	PowerFlex 700	200/240 V class	80 A class	Application dependent	Vector	IP20	Heavy industrial motor control	Frame dependent	Frame dependent
25B-D030N114	PowerFlex 525	400 V class	30 A class	Approx. 15 kW class	Sensorless vector	IP20	Compact machinery	Approx. 350 × 180 × 220 mm	Approx. 6
25B-D017N114	PowerFlex 525	400 V class	17 A class	Approx. 7.5 kW class	Sensorless vector	IP20	Small/medium machinery	Approx. 250 × 150 × 200 mm	Approx. 4

The five models above are not all direct replacements.

The PowerFlex 700 models are more appropriate when the application requires higher power and more substantial industrial motor-control capability, while the PowerFlex 525 models are more compact and are generally better suited to smaller machines.

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17. Model Comparison

Characteristic	20BC085A0NNNANC0	20BC105A0NNNANC0	20BC105A0AYNACC0
Model	20BC085A0NNNANC0	20BC105A0NNNANC0	20BC105A0AYNACC0
Voltage	400 V	400 V	400 V
Output current	85 A	105 A	105 A
Normal-duty power	45 kW	55 kW	55 kW
Heavy-duty power	Approx. 37 kW	45 kW	45 kW
Vector control	Yes	Yes	Yes
Brake IGBT	No	No	Yes
Internal brake resistor	No	No	No
Feedback	No	No	No
EMC filter	Yes	Yes	Yes
Common-mode choke	Yes	Yes	Yes
Frame	4	5	5
Protection	IP20	IP20	IP20
Approx. weight	11.1 kg	27 kg	Approx. 27 kg

The 20BC105A0NNNANC0 offers a substantial increase in current and power capability compared with the 85 A model.

The braking version is more attractive when the machine requires controlled dissipation of regenerative energy, but it should be selected only after confirming the actual braking requirements.

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18. Recommended Applications by Load Type

Load type	Suitability	Reason
Conveyor	Excellent	High current and controlled acceleration
Industrial pump	Excellent	Variable-speed operation
Large fan	Excellent	Adjustable airflow and motor speed
Blower	Excellent	High-power variable-speed control
Mixer	Very good	High motor power and vector control
Material handling	Very good	Speed and torque regulation
General machinery	Very good	Flexible I/O and vector control
High-inertia machine	Conditional	Braking arrangement must be evaluated
Precision positioning	Conditional	Feedback configuration may be required
Vertical lifting	Conditional	Braking and safety architecture must be evaluated
Small machine	Usually unnecessary	Smaller drive may be more economical
Outdoor exposed installation	Not suitable directly	IP20 enclosure requires protection

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19. Selection Advantages Compared with Smaller Drives

The main reason to choose the 20BC105A0NNNANC0 instead of a smaller drive is not simply the physical size of the motor.

The 105 A current capacity provides additional electrical margin for demanding industrial loads.

This becomes important when the machine experiences:

• Frequent starts and stops
• High starting torque
• High mechanical load
• Long acceleration periods
• Temporary overloads
• Variable mechanical resistance
• Continuous industrial operation

A smaller drive may appear adequate based only on motor kW, but it can become unsuitable if the motor’s actual current demand exceeds its continuous or overload capability.

Therefore, the 105 A rating provides a useful capacity level for larger machines.

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20. Cabinet Design Considerations

Because the drive is a high-power IP20 device, cabinet design is an important part of installation.

The cabinet should provide sufficient space for:

1. Drive mounting.
2. Incoming power wiring.
3. Motor output wiring.
4. Control wiring.
5. Airflow.
6. Heat dissipation.
7. Maintenance access.
8. Grounding.
9. EMC cable routing.
10. Protection against dust and moisture.

The approximate physical dimensions of 600 × 350 × 300 mm should not be interpreted as the required cabinet size.

The complete cabinet normally needs to be larger because the drive requires surrounding clearance and other components may occupy the same enclosure.

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21. Heat and Ventilation

A 105 A industrial drive can generate a significant amount of heat during continuous operation.

For this reason, cabinet thermal calculations should be performed when multiple drives, power supplies, PLCs, contactors and other heat-producing components are installed together.

Forced-air cooling is an important part of maintaining reliable operation.

If the ambient temperature is high, the cabinet ventilation arrangement becomes even more important.

Poor ventilation can result in:

• Higher internal temperature
• Increased thermal stress
• Drive thermal alarms
• Reduced service life
• Unwanted trips
• Reduced allowable output capacity

Therefore, the mechanical installation should be considered part of the drive selection rather than an afterthought.

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22. Motor Compatibility

Before selecting this drive for a motor, the following motor nameplate information should be checked:

Motor parameter	Recommended check
Rated voltage	Must match drive output voltage range
Rated current	Must be within drive capability
Rated power	Compare with duty rating
Frequency	Usually 50 or 60 Hz
Rated speed	Required for motor configuration
Power factor	Used for motor setup
Efficiency	Relevant for system calculation
Motor type	Confirm AC motor compatibility
Encoder	Determine whether feedback is required
Thermal protection	Confirm motor protection method

The most important number for drive sizing is usually the motor rated current, together with the application’s overload and torque requirements.

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23. Why the Exact Catalog Number Matters

The PowerFlex 700 family contains many catalog-number combinations.

Two models can have:

• The same voltage
• The same current
• The same power
• The same frame

and still have different functionality because of their option suffixes.

The difference can involve:

• Braking
• Feedback
• EMC configuration
• Communication
• Operator interface
• I/O
• Firmware
• Environmental configuration

For this reason, 20BC105A0NNNANC0 should be compared with the complete catalog number of the existing drive when carrying out a replacement.

Replacing it with another 105 A drive without checking the suffix can create compatibility problems.

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24. Overall Product Advantages

The major strengths of the 20BC105A0NNNANC0 can be summarized as follows:

Advantage	Description
High current capacity	105 A continuous output
High power	Approx. 55 kW normal duty
Heavy-duty capability	Approx. 45 kW heavy duty
Vector control	Better speed and torque regulation
Industrial construction	Designed for industrial cabinet installation
EMC configuration	EMC filter and common-mode choke
Flexible I/O	6 digital inputs, 3 digital outputs, 2 analog inputs and 2 analog outputs
Wide frequency capability	Up to approximately 420 Hz
High efficiency	Approximately 97.5% under specified rated conditions
Broad applications	Pumps, fans, conveyors and production machinery
Expandable architecture	Can be integrated into larger automation systems

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25. Overall Limitations

A good product evaluation should also consider its limitations.

Limitation	Practical implication
No internal brake resistor	External braking may be required
No brake IGBT	Regenerative applications need additional consideration
No feedback option	Encoder applications may require another configuration
No internal communication module	Network architecture may require additional hardware
IP20 enclosure	Requires suitable cabinet protection
Large physical size	Not ideal for compact machine designs
Relatively high weight	Cabinet mounting must support approximately 27 kg
High-power device	Requires appropriate electrical protection and installation
Older drive platform	Replacement planning should be considered for existing installations

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26. Final Recommendation

The 20BC105A0NNNANC0 is a strong choice when the application requires a 400 V, three-phase, 105 A industrial AC drive with approximately 55 kW normal-duty capacity and vector control.

It is particularly appropriate for larger conveyors, industrial pumps, fans, blowers, material-handling equipment, mixers and general industrial machinery.

Its EMC filter and common-mode choke, together with flexible 24 V I/O and vector-control capability, make it suitable for integration into conventional industrial automation systems.

The model is especially attractive when the application does not require built-in braking or encoder feedback.

If the machine requires rapid stopping, regenerative braking, precise closed-loop speed control or extensive network functionality, a different catalog configuration within the same family may be more suitable.

For physical planning, the model can be treated as approximately 600 × 350 × 300 mm and approximately 27 kg, but these values should be regarded as engineering reference figures rather than final installation dimensions.

The most important selection point is the 105 A current rating, followed by the 55 kW normal-duty / 45 kW heavy-duty rating. When replacing an existing drive, the complete catalog number and all installed options should be compared rather than selecting a drive solely according to motor horsepower.

In practical industrial terms, the 20BC105A0NNNANC0 is a high-capacity, 400 V-class vector AC drive intended for demanding industrial motor-control applications, with particular strengths in large motor applications, adjustable-speed operation, industrial I/O flexibility and EMC-oriented installation.