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Allen-Bradley 20F1AND302JA0NNNNN — Detailed Product Specifications, Applications, Advantages and Model Selection Guide

1. Product Overview

The Allen-Bradley 20F1AND302JA0NNNNN is a high-power industrial AC variable frequency drive belonging to the PowerFlex 753 series.

It is designed for demanding three-phase motor-control applications where a combination of high output current, substantial motor horsepower, adjustable speed, controlled acceleration, process regulation and industrial automation integration is required.

This model is rated for 480 VAC, three-phase operation, with a 302 A output current, a 250 HP normal-duty rating, and a 200 HP heavy-duty rating.

Its approximate metric power ratings are about 186 kW for normal duty and 149 kW for heavy duty.

The drive uses a Frame 7 mechanical construction and a forced-air cooling system. It is supplied as an open-type drive intended for installation inside a suitable electrical cabinet or protected industrial enclosure.

The catalog configuration includes embedded I/O, AC input with precharge, no DC terminals, filtered input configuration, and an installed CM jumper.

An important feature of this exact catalog number is the presence of a dynamic-braking transistor. This makes the model particularly interesting for applications where controlled deceleration and braking management are more demanding than they would be in a simple pump or fan installation.

The drive is supplied with a blank configuration without a HIM, meaning that a separate human-interface module is not included as part of this catalog configuration.

With its 302 A current rating and 250 HP normal-duty capacity, the 20F1AND302JA0NNNNN is positioned toward the high-power end of the PowerFlex 753 family.

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2. Brand and Product Series

Category	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 753
Product Type	AC Variable Frequency Drive
Product Category	Industrial AC Drive
Drive Class	High-Power General-Purpose Industrial Drive
Voltage Class	480 VAC
Input Phase	3 Phase
Frame	Frame 7
Cooling	Forced Air
Enclosure	IP20/IP00 Open Type
Enclosure Style	NEMA/UL Open Type
Normal-Duty Rating	250 HP
Heavy-Duty Rating	200 HP
Output Current	302 A

The PowerFlex 753 series is intended for general-purpose industrial motor control and is designed to provide a flexible platform for applications requiring variable-frequency operation.

Compared with smaller compact drive families, the PowerFlex 753 platform is intended for larger motors and more demanding industrial installations.

It can be used as part of an integrated automation system in which the drive communicates operating information, receives speed commands, monitors motor conditions and participates in machine-level control.

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3. Product Identification

Parameter	Specification
Model	20F1AND302JA0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 753
Product Type	AC Variable Frequency Drive
Input Voltage Class	480 VAC
Input Voltage Range	380–480 VAC
Input Phase	3 Phase
Input Frequency	50/60 Hz
Rated Output Current	302 A
Normal-Duty Power	250 HP
Heavy-Duty Power	200 HP
Normal-Duty Power, Metric	Approx. 186 kW
Heavy-Duty Power, Metric	Approx. 149 kW
Frame Size	Frame 7
Cooling Method	Forced Air
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Input Configuration	AC Input with Precharge
DC Terminals	No
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	DB Transistor
Embedded I/O	Yes
HIM	Blank / No HIM
Mounting	Cabinet / Panel
Height	Approx. 881.5 mm
Width	Approx. 430 mm
Depth	Approx. 349.6 mm
Dimensions	Approx. 881.5 × 430 × 349.6 mm
Weight	Approx. 56.7 kg

The dimensions and weight should be treated as equipment-selection values rather than complete cabinet-design dimensions.

Because this is a large Frame 7 drive, additional space is required for incoming power connections, motor output cables, control wiring, ventilation and maintenance access.

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4. Main Electrical Parameters

Electrical Parameter	Specification
Model	20F1AND302JA0NNNNN
Input Voltage	380–480 VAC
Nominal Voltage	480 VAC
Input Phase	3 Phase
Input Frequency	50/60 Hz
Output Current	302 A
Normal-Duty Current	302 A class
Normal-Duty Horsepower	250 HP
Heavy-Duty Horsepower	200 HP
Normal-Duty Power	Approx. 186 kW
Heavy-Duty Power	Approx. 149 kW
Output	Variable-frequency 3-phase AC
Frame	7
Cooling	Forced Air
Input	AC with Precharge
DC Terminals	No
Filtering	Yes
CM Jumper	Installed
Dynamic Braking	DB Transistor
Embedded I/O	Yes
HIM	Blank / No HIM

The 302 A output rating is the key electrical characteristic of this model.

For industrial drive selection, the motor’s actual nameplate current should be treated as one of the primary selection parameters.

Horsepower provides a convenient reference, but motor current, load torque, duty cycle and acceleration requirements are often more important when determining whether a drive is correctly sized.

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5. Normal-Duty Rating

The 20F1AND302JA0NNNNN has a 250 HP normal-duty rating.

This corresponds to approximately:

250 HP ≈ 186 kW

Normal-duty operation is generally associated with applications where the motor load is relatively smooth and the required overload performance is less severe than heavy-duty applications.

Typical examples include:

• Large centrifugal pumps
• Large centrifugal fans
• Industrial blowers
• Cooling systems
• Water circulation systems
• Large ventilation systems
• Process-air systems

The final selection should always be based on motor current and the actual load profile.

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6. Heavy-Duty Rating

The heavy-duty rating is 200 HP.

This corresponds to approximately:

200 HP ≈ 149 kW

The heavy-duty rating is particularly relevant where the motor experiences higher torque requirements, more demanding acceleration, or repeated overload conditions.

Possible applications include:

• Heavy conveyors
• Mixers
• Agitators
• Material-handling equipment
• Certain compressors
• Heavy process machinery
• High-inertia machines

The heavy-duty rating should be considered when the machine does not operate like a simple centrifugal load.

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7. 302 A Output Capability

A 302 A output current rating places this model firmly in the large industrial-drive category.

This level of current allows the drive to control large motors used in production plants, process facilities, utilities and heavy industrial machinery.

When selecting the drive, the following motor information should be checked:

• Motor rated current
• Motor voltage
• Motor horsepower
• Motor frequency
• Motor speed
• Motor service factor
• Motor torque characteristics
• Starting torque
• Acceleration time
• Deceleration time
• Duty cycle
• Ambient conditions
• Motor cable length

The 302 A rating provides substantial capacity, but the drive should not be oversized or undersized solely by comparing horsepower values.

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8. 480 VAC Three-Phase Operation

The drive belongs to the 480 VAC three-phase class.

The applicable input range is approximately 380–480 VAC.

This voltage class is widely used for large industrial motors because higher voltage allows substantial power to be transmitted at a lower current than would be required at a lower voltage.

This makes the drive suitable for high-power systems such as:

• Industrial pumps
• Large fans
• Blowers
• Conveyors
• Compressors
• Process machinery
• Cooling systems
• Production equipment
• Material-handling systems

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9. Frame 7 Mechanical Design

The 20F1AND302JA0NNNNN uses a Frame 7 construction.

Frame 7 is a larger mechanical platform designed to accommodate the electrical and thermal requirements associated with high-current industrial drives.

Mechanical Parameter	Specification
Model	20F1AND302JA0NNNNN
Frame	7
Height	Approx. 881.5 mm
Width	Approx. 430 mm
Depth	Approx. 349.6 mm
Dimensions	Approx. 881.5 × 430 × 349.6 mm
Weight	Approx. 56.7 kg
Cooling	Forced Air
Enclosure	IP20/IP00
Installation	Electrical Cabinet
Construction	Open Type

The larger Frame 7 format provides the physical space needed for high-current power components and cooling hardware.

It should therefore be planned as a major cabinet component rather than as a small machine-mounted drive.

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10. Dimensions and Weight

The approximate physical dimensions are:

881.5 mm high × 430 mm wide × 349.6 mm deep

The approximate equipment weight is:

56.7 kg

Mechanical Specification	Value
Model	20F1AND302JA0NNNNN
Height	881.5 mm
Width	430 mm
Depth	349.6 mm
Overall Dimensions	881.5 × 430 × 349.6 mm
Weight	56.7 kg
Frame	7
Cooling	Forced Air
Enclosure	IP20/IP00 Open Type

The actual cabinet footprint must be larger than the drive itself.

Additional clearance is needed for power-terminal access, cable routing, cooling airflow and maintenance.

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11. Open-Type IP20/IP00 Construction

The drive uses an IP20/IP00-class NEMA/UL Open Type construction.

This means that the drive is normally installed within a suitable electrical cabinet or another protected environment.

It should not be treated as a sealed outdoor drive.

The installation should protect the drive from:

• Water
• Condensation
• Excessive dust
• Conductive particles
• Oil mist
• Corrosive chemicals
• Metal particles
• Direct mechanical impact
• Excessive environmental contamination

A properly designed cabinet can provide the environmental protection that the open-type drive itself does not provide.

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12. Forced-Air Cooling

The 20F1AND302JA0NNNNN uses forced-air cooling.

At 302 A, the drive can generate substantial heat during operation.

Consequently, thermal management is an important part of system design.

The cabinet should provide sufficient airflow around the drive and should prevent heated air from circulating back through the cooling path.

Important considerations include:

• Ambient temperature
• Cabinet temperature
• Cooling-air volume
• Fan operation
• Air filters
• Heat generated by other equipment
• Cabinet ventilation
• Drive spacing
• Maintenance of the cooling system

For installations containing several high-power drives, the total cabinet heat load should be calculated.

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13. AC Input with Precharge

The drive is configured for AC input with precharge.

This is appropriate for a large industrial drive with a substantial DC-link energy-storage system.

The precharge system manages the initial charging of the internal DC bus when the drive is energized.

This is an important part of the input architecture of a high-power variable frequency drive.

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14. No DC Terminals

This exact configuration does not include external DC terminals.

This makes the model suitable for conventional AC-fed motor applications where an external shared DC bus is not required.

Applications involving regenerative common-bus arrangements or special DC-bus architectures should be evaluated separately.

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15. Filtered Configuration

The 20F1AND302JA0NNNNN is supplied with a filtered configuration and an installed CM jumper.

This configuration is useful in industrial electrical environments where the drive operates alongside other electronic equipment.

Potentially sensitive equipment can include:

• PLC controllers
• HMIs
• Sensors
• Industrial communication equipment
• Instrumentation
• Measurement systems
• Other drives
• Electronic power supplies

Correct grounding and cable-routing practices remain essential even when filtering is included.

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16. Dynamic Braking

One of the major differences between the JA0 configuration and some other PowerFlex 753 configurations is the presence of a dynamic-braking transistor.

The 20F1AND302JA0NNNNN includes a DB transistor.

This is important when the application needs to manage regenerated energy during deceleration.

When a large motor slows down, the rotating mechanical system can return energy toward the drive.

In applications with significant inertia or frequent deceleration, that energy needs to be managed appropriately.

The internal transistor provides an interface for a suitable dynamic-braking resistor arrangement.

This can be particularly useful for:

• Heavy conveyors
• High-inertia fans
• Centrifugal equipment
• Large rotating machinery
• Rapid deceleration applications
• Certain material-handling systems
• Machines with frequent stop/start cycles

The actual braking resistor and braking-duty requirements must be selected according to the application.

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17. Why the Dynamic-Braking Transistor Matters

A drive without a braking transistor may require a different braking strategy.

The JA0 configuration provides more flexibility for applications where braking energy is an important design consideration.

This does not mean that every application requires a braking resistor.

For many centrifugal pumps and fans, the normal deceleration process may be sufficiently gradual.

However, when rapid stopping is required, the dynamic-braking capability becomes much more relevant.

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18. Embedded I/O

The drive includes embedded I/O.

This provides basic control and monitoring interfaces without necessarily requiring a large amount of additional external interface hardware.

Typical signals may include:

• Start command
• Stop command
• Speed reference
• Run status
• Fault status
• Analog process signals
• Digital machine signals

This can simplify the connection between the drive and a machine controller.

For more complex applications, additional I/O or communication options can be added according to the system architecture.

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19. Blank HIM Configuration

The catalog configuration is supplied as:

Blank — No HIM

This means the drive does not include a local human-interface module as part of this particular catalog number.

This can be advantageous in applications where the drive is controlled primarily through:

• PLC commands
• Industrial networks
• External operator stations
• Supervisory control systems
• Remote HMIs

A suitable interface can be selected separately when local operator interaction is required.

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20. Product Introduction

The 20F1AND302JA0NNNNN is designed for large industrial motor applications in which simple motor starting is not sufficient.

A conventional motor starter can provide basic start and stop control.

A variable frequency drive provides considerably more control.

The drive can change motor speed by controlling output frequency and voltage.

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

For example, a pump may need reduced speed during low-demand periods.

A conveyor may require slow acceleration to avoid mechanical shock.

A fan may need to maintain a constant pressure.

A mixer may need several different operating speeds.

A large process machine may require coordinated speed changes based on production conditions.

The 20F1AND302JA0NNNNN is designed for this type of industrial application.

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21. Major Product Advantages

21.1 High Power Capacity

The 250 HP normal-duty rating makes the drive suitable for large industrial motors.

This places it significantly above compact machine drives.

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21.2 302 A Current Capacity

The 302 A output-current class provides substantial motor-control capacity.

This makes the drive suitable for large pumps, fans, conveyors, blowers and process machinery.

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21.3 480 VAC Industrial Compatibility

The 380–480 VAC input range makes the drive compatible with common high-power industrial electrical systems.

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21.4 Frame 7 Construction

Frame 7 provides a robust mechanical platform suitable for the electrical and thermal requirements of a 302 A drive.

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21.5 Built-In Dynamic-Braking Transistor

The DB transistor provides additional flexibility for applications involving significant regenerative energy during deceleration.

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21.6 Embedded I/O

Embedded I/O can simplify basic machine integration.

This can reduce the amount of external interface equipment required for standard control functions.

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21.7 Flexible Automation Platform

The PowerFlex 753 architecture allows additional functions and options to be incorporated as the application requires.

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21.8 Forced-Air Cooling

Forced-air cooling provides an effective thermal-management approach for high-power industrial drives.

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21.9 Filtered Configuration

The integrated filtering configuration supports use in industrial electrical environments where electromagnetic compatibility is important.

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21.10 Cabinet Integration

The open-type construction allows the drive to be integrated into a larger custom electrical cabinet.

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22. Pump Applications

Large pumps are one of the most common applications for high-power variable frequency drives.

A pump does not necessarily need to run at full speed continuously.

The drive can adjust motor speed based on process demand.

Typical control variables include:

• Pressure
• Flow
• Tank level
• Cooling demand
• Production demand
• Process scheduling

Applications can include:

• Industrial water circulation
• Cooling-water systems
• Water treatment
• Process-fluid transfer
• Pressure boosting
• Industrial utilities
• Manufacturing facilities

For suitable centrifugal-pump systems, variable-speed control can also reduce unnecessary energy consumption.

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23. Large Fan Applications

Large industrial fans can require hundreds of horsepower.

The 20F1AND302JA0NNNNN can regulate fan speed according to actual airflow or pressure requirements.

Potential applications include:

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

Variable-speed operation allows the fan to operate closer to actual process demand.

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24. Blower Applications

Industrial blowers are often operated continuously.

A fixed-speed blower may provide more airflow than the process actually requires.

A variable frequency drive allows the blower to operate at different speeds.

Potential benefits include:

• Adjustable airflow
• Pressure regulation
• Controlled startup
• Controlled stopping
• Reduced mechanical stress
• Better process flexibility
• Potential energy savings

The blower’s torque characteristics should always be considered when selecting the duty rating.

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25. Conveyor Applications

The 20F1AND302JA0NNNNN is well suited to many large conveyor applications.

Large conveyors can contain substantial mechanical inertia.

Starting a conveyor abruptly can create mechanical shock throughout the system.

Variable-frequency control can provide a controlled acceleration ramp.

This can help reduce stress on:

• Conveyor belts
• Gearboxes
• Couplings
• Shafts
• Bearings
• Mechanical frames

The dynamic-braking transistor also provides an important advantage when the conveyor needs controlled deceleration.

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26. Heavy Material Handling

Large material-handling systems can benefit from the high current and horsepower capacity of this model.

Potential applications include:

• Bulk material conveyors
• Transfer systems
• Feed systems
• Processing conveyors
• Industrial transport equipment
• Material distribution systems

The drive can coordinate motor speed with upstream and downstream machinery.

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27. Compressor Applications

Large compressors can require substantial motor power.

Where variable-speed operation is appropriate, the drive can provide:

• Controlled acceleration
• Adjustable operating speed
• Pressure regulation
• Process control
• Reduced mechanical shock
• Flexible operating modes

Compressor applications should be evaluated carefully because compressor torque characteristics can vary considerably.

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28. Mixer Applications

Large industrial mixers can require considerable starting torque.

The drive can provide controlled acceleration and multiple operating speeds.

A typical process may involve:

1. Low-speed loading.
2. Controlled acceleration.
3. Medium-speed mixing.
4. High-speed blending.
5. Reduced-speed discharge.
6. Controlled stopping.

The ability to adjust speed can improve process flexibility and reduce unnecessary mechanical stress.

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29. Agitator Applications

Large agitators are commonly used in process industries.

Typical applications include:

• Chemical processing
• Water treatment
• Material blending
• Industrial production
• Process tanks

The drive can provide variable-speed operation according to the viscosity and process requirements.

For demanding agitator loads, the 200 HP heavy-duty rating should be evaluated against the motor nameplate current and torque profile.

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30. Process Machinery

The drive can serve as the motor-control element in a wide range of process machinery.

Examples include:

• Production equipment
• Industrial pumps
• Blowers
• Fans
• Mixers
• Material-processing machines
• Cooling equipment
• Manufacturing systems

The drive can become part of the larger process-control system rather than operating as an isolated motor controller.

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31. PID Process Control

PID control is particularly useful when motor speed needs to respond automatically to a process variable.

For example:

Pump

The drive can regulate speed to maintain pressure.

Fan

The drive can regulate speed to maintain airflow or duct pressure.

Blower

The drive can adjust speed according to process pressure.

Process Machine

The drive can respond to a measured process variable and maintain a desired setpoint.

The basic concept is straightforward:

Measured Process Value → PID Calculation → Speed Reference → Motor Speed

This allows the drive to become part of an automatic closed-loop process-control system.

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32. Industrial Automation Integration

The PowerFlex 753 platform is suitable for integration with industrial automation systems.

A typical system can contain:

• PLC
• HMI
• Drive
• Sensors
• Motor
• Safety devices
• Industrial network
• Process instrumentation

The controller can exchange information such as:

• Start/stop commands
• Speed references
• Actual speed
• Current
• Drive status
• Fault information
• Warning information
• Process data

This type of integration is particularly valuable in large production systems where the drive must operate according to a centralized machine sequence.

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33. Safety and Machine Control

The PowerFlex 753 platform can be integrated into machine-safety architectures using appropriate safety functions and options.

Potential applications include:

• Safe torque removal
• Emergency-stop functions
• Guarding systems
• Safety interlocks
• Controlled machine shutdown

The final safety system must be designed according to the complete machine risk assessment.

The drive should be considered one component of the overall safety architecture.

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34. Cabinet Design

The open-type Frame 7 construction means that cabinet design is particularly important.

The physical drive dimensions are approximately:

881.5 × 430 × 349.6 mm

However, these dimensions should not be used as the complete cabinet dimensions.

Additional space is required for:

• Input power cables
• Motor cables
• Cable bending radius
• Control wiring
• Grounding
• Communication modules
• Braking components
• Ventilation
• Maintenance
• Terminal access

The cabinet should be designed around the complete installation rather than the drive body alone.

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35. Thermal Management

At 302 A, the drive can generate considerable heat.

The cooling system should therefore be considered during cabinet design.

Important factors include:

• Cabinet ambient temperature
• Heat generated by the drive
• Heat generated by adjacent equipment
• Cooling airflow
• Fan condition
• Air filters
• Cabinet ventilation
• Installation spacing
• Internal air circulation

If several drives are installed in the same cabinet, their combined heat output should be considered.

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36. Electrical Installation Considerations

Installation Parameter	Requirement / Consideration
Input Voltage	380–480 VAC
Input Phase	3 Phase
Output Current	302 A
ND Rating	250 HP
HD Rating	200 HP
Cooling	Forced Air
Enclosure	IP20/IP00 Open Type
Cabinet	Required for protected installation
Dynamic Braking	DB transistor included
Motor Cable	Correctly sized for motor current
Grounding	Proper protective grounding
EMC	Appropriate grounding and cable routing
Protection	Correctly selected upstream protection
Thermal Design	Adequate cabinet cooling
Maintenance	Sufficient access clearance

The complete electrical system must be engineered as a coordinated installation.

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37. Motor Selection

Motor selection should be based primarily on actual motor data and load requirements.

Motor Parameter	Importance
Rated Voltage	Must match the drive output voltage class
Full-Load Current	Primary drive-sizing parameter
Rated Power	General selection reference
Rated Frequency	Required for setup
Rated Speed	Important for motor control
Torque	Critical for load matching
Starting Torque	Important for heavy-duty applications
Service Factor	Useful for application assessment
Motor Type	Determines control requirements
Encoder	Required for certain closed-loop systems
Duty Cycle	Determines thermal and overload requirements
Load Type	Determines ND/HD suitability

The 250 HP normal-duty rating should not be interpreted as a guarantee that every 250 HP motor can be connected without further evaluation.

The motor’s full-load current must be compatible with the drive’s current rating.

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38. Normal-Duty and Heavy-Duty Application Guide

Application	Typical Duty Consideration
Centrifugal Pump	Normal Duty
Centrifugal Fan	Normal Duty
Large Blower	Normal Duty
Cooling Fan	Normal Duty
Water Circulation	Normal Duty
Large Conveyor	Heavy Duty / Application Specific
Mixer	Heavy Duty / Application Specific
Agitator	Heavy Duty / Application Specific
Compressor	Application Specific
High-Inertia Machine	Application Specific
Material Handling	Heavy Duty / Application Specific
Rapid-Deceleration Machine	Braking Analysis Required

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39. Dynamic-Braking Application Guide

The built-in DB transistor makes this particular model more flexible for braking applications.

Application	Braking Consideration
Centrifugal Pump	Usually moderate braking requirement
Fan	Usually moderate braking requirement
Large Blower	Application dependent
Conveyor	Dynamic braking may be important
Heavy Conveyor	Dynamic braking often requires careful analysis
High-Inertia Fan	Braking energy should be calculated
Centrifuge	Strong braking consideration
Mixer	Depends on inertia and stop time
Material Handling	Often important
Rapid Stop Machine	Detailed braking analysis required

The braking resistor must be correctly selected for the regenerated energy, stopping time and duty cycle.

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40. Five Recommended Same-Series or Related Models

The following models are useful comparison choices within the PowerFlex 753 high-power range.

Model	Voltage Class	ND Current	HD Current	ND Power	HD Power	Frame	Approx. Dimensions	Approx. Weight
20F1AND248JA0NNNNN	480 V	248 A	186 A	200 HP	150 HP	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20F1AND302JA0NNNNN	480 V	302 A	248 A	250 HP	200 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 56.7 kg
20F1AND367JA0NNNNN	480 V	367 A	Approx. 302 A	300 HP	250 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 56.7 kg
20F1AND456JA0NNNNN	480 V	456 A	Approx. 367 A	350 HP	300 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 56.7 kg
20F1AND477JA0NNNNN	480 V	477 A	Approx. 367 A	400 HP	300 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 124.7 kg*

*Weight can vary by source, packaging and configuration; the exact installed-unit weight should be confirmed against the mechanical documentation before final cabinet or lifting design.

The 20F1AND302JA0NNNNN is an important midpoint in this high-power group.

It provides considerably more current capacity than the 248 A class while remaining below the 367 A, 456 A and 477 A configurations.

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41. Same-Series Capacity Comparison

Model	ND Current	HD Current	ND HP	HD HP	Frame	Approx. Weight
20F1AND248JA0NNNNN	248 A	186 A	200 HP	150 HP	6	38.6 kg
20F1AND302JA0NNNNN	302 A	248 A	250 HP	200 HP	7	56.7 kg
20F1AND367JA0NNNNN	367 A	Approx. 302 A	300 HP	250 HP	7	Approx. 56.7 kg
20F1AND456JA0NNNNN	456 A	Approx. 367 A	350 HP	300 HP	7	Approx. 56.7 kg
20F1AND477JA0NNNNN	477 A	Approx. 367 A	400 HP	300 HP	7	Approx. 124.7 kg*

This progression makes the 20F1AND302JA0NNNNN a logical selection when the application requires a 250 HP normal-duty drive or a 200 HP heavy-duty drive.

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42. Five Same-Brand Popular Models

The following models represent different levels within the Allen-Bradley variable-frequency-drive portfolio and can be considered when comparing application requirements.

Model	Series	Voltage Class	Power Class	Current Class	Typical Application	Approx. Dimensions	Approx. Weight
20F1AND302JA0NNNNN	PowerFlex 753	480 V	250 HP ND / 200 HP HD	302 A	Large industrial motors	881.5 × 430 × 349.6 mm	56.7 kg
20F1AND248JA0NNNNN	PowerFlex 753	480 V	200 HP ND / 150 HP HD	248 A	Pumps, fans, conveyors	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20F1AND477JA0NNNNN	PowerFlex 753	480 V	400 HP ND / 300 HP HD	477 A	Very large industrial motors	Frame 7	Approx. 124.7 kg*
20G1AND302JA0NNNNN	PowerFlex 755	480 V class	250 HP class	302 A class	Advanced industrial applications	Frame-dependent	Frame-dependent
25B-D024N114	PowerFlex 525	480 V class	Approx. 15 HP class	Medium current	Compact industrial machines	Compact	Approx. 7–10 kg

The purpose of this comparison is to show how different Allen-Bradley drive families address different motor sizes and application requirements.

The PowerFlex 525 class is considerably smaller and is better suited to compact machines.

The PowerFlex 753 models are intended for larger industrial motor applications.

The PowerFlex 755 family is generally selected when advanced control, system integration and application flexibility are more important.

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43. PowerFlex 753 vs PowerFlex 755

Characteristic	20F1AND302JA0NNNNN	PowerFlex 755 Class
Series	PowerFlex 753	PowerFlex 755
Main Position	General-Purpose Industrial Drive	Advanced Industrial Drive
Voltage	480 V class	Multiple voltage classes
Power Range	High Power	Very High Power Capability
Application	General Industrial Motor Control	Advanced Motor and Machine Control
I/O	Embedded I/O	Extensive expansion capability
Feedback	Option-based	Extensive option support
Communication	Option-based	Broad communication capability
Safety	Available through suitable architecture/options	Extensive safety capability
Typical Use	Pumps, fans, conveyors, process equipment	Advanced machinery and high-performance applications

The 20F1AND302JA0NNNNN is an excellent choice when the application requires a high-power general-purpose industrial drive without necessarily requiring every advanced function available in the larger architecture-class platform.

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44. Advantages for Large Pump Systems

The drive can provide substantial benefits in large pumping applications.

Variable-speed operation allows the pump to respond to actual process demand.

For example, the pump speed can be adjusted to maintain:

• Constant pressure
• Constant flow
• Tank level
• Cooling-water demand
• Process-fluid requirements

This can improve process stability.

In suitable centrifugal-pump systems, it can also reduce unnecessary energy consumption compared with continuously operating the motor at full speed.

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45. Advantages for Large Fan Systems

Large fans are another strong application area.

The drive can control fan speed according to:

• Airflow
• Static pressure
• Temperature
• Ventilation demand
• Process requirements

The controlled acceleration capability can also reduce mechanical shock during startup.

For variable-torque fan systems, speed reduction can have a substantial effect on power consumption.

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46. Advantages for Conveyor Systems

The 302 A current capacity gives the drive sufficient capability for many large conveyor systems.

Controlled acceleration can help protect mechanical components.

The dynamic-braking transistor is also valuable when a conveyor needs controlled stopping.

This can be particularly important for:

• Long conveyors
• Heavy conveyors
• High-inertia conveyors
• Material-handling systems
• Production-line conveyors

The final braking arrangement should still be calculated according to load inertia and stopping time.

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47. Advantages for High-Inertia Equipment

High-inertia machinery can return significant energy to the drive during deceleration.

Examples include:

• Large fans
• Heavy conveyors
• Centrifuges
• Rollers
• Flywheels
• Large mixers
• Rotating process equipment

The integrated dynamic-braking transistor provides a means of managing regenerative energy with an appropriate external braking resistor.

This is an important advantage compared with configurations that do not include an internal braking transistor.

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48. Advantages for Process Machinery

Process machinery often benefits from adjustable speed.

Instead of designing the machine around one fixed motor speed, the drive allows operating speed to become another process variable.

This can be useful for:

• Mixing
• Pumping
• Blending
• Ventilation
• Material transport
• Process circulation
• Production machinery

The ability to change speed during different production stages can improve overall machine flexibility.

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49. Advantages for Energy Management

Variable-speed operation can reduce unnecessary motor operation at maximum speed.

This is especially valuable for suitable variable-torque loads such as centrifugal pumps and fans.

The potential benefits include:

• Reduced energy consumption
• Better process matching
• Reduced throttling losses
• Reduced mechanical stress
• Improved operating flexibility

Actual energy savings depend strongly on the load profile and machine design.

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50. Installation and Maintenance

The approximate weight of the drive is 56.7 kg, making mechanical handling an important part of installation planning.

The Frame 7 enclosure is physically large, so the mounting structure must be strong enough to support the equipment.

Installation planning should consider:

• Mounting position
• Cabinet structure
• Cable entry
• Cable bending radius
• Ventilation
• Fan access
• Maintenance access
• Grounding
• Power-terminal access
• Control-terminal access
• Braking equipment

The cooling system should also be inspected periodically.

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51. Environmental Considerations

Because the drive is an open-type industrial component, the installation environment must be controlled.

Important considerations include:

• Ambient temperature
• Humidity
• Condensation
• Dust
• Conductive contamination
• Corrosive gases
• Oil mist
• Vibration
• Altitude
• Cooling-air quality

The electrical cabinet should be selected according to the environmental conditions of the actual installation site.

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52. Product Selection Checklist

Before selecting the 20F1AND302JA0NNNNN, verify the following:

Selection Item	Required Evaluation
Motor Voltage	Compatible with 480 V class
Motor Current	Within the applicable drive rating
Motor Power	250 HP ND / 200 HP HD class
Load Type	Determine ND or HD requirement
Starting Torque	Evaluate for heavy loads
Acceleration	Confirm required acceleration time
Deceleration	Determine braking requirement
Dynamic Braking	DB transistor available
Braking Resistor	Select according to regenerated energy
Cabinet	Adequate physical capacity
Cooling	Adequate forced-air ventilation
Environment	Suitable protected industrial environment
Motor Cable	Correctly sized
Grounding	Properly engineered
Communication	Select required option
Feedback	Add appropriate feedback option if required
Safety	Evaluate machine safety architecture

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53. Complete Technical Parameter Table

Category	Parameter	Specification
Product	Model	20F1AND302JA0NNNNN
Product	Brand	Allen-Bradley
Product	Series	PowerFlex 753
Product	Product Type	AC Variable Frequency Drive
Product	Drive Configuration	Air-Cooled AC Drive
Electrical	Input Voltage	380–480 VAC
Electrical	Nominal Voltage	480 VAC
Electrical	Input Phase	3 Phase
Electrical	Input Frequency	50/60 Hz
Electrical	Output Current	302 A
Electrical	Normal-Duty Rating	250 HP
Electrical	Heavy-Duty Rating	200 HP
Electrical	Normal-Duty Power	Approx. 186 kW
Electrical	Heavy-Duty Power	Approx. 149 kW
Construction	Frame	7
Construction	Cooling	Forced Air
Construction	Enclosure	IP20/IP00
Construction	Enclosure Type	NEMA/UL Open Type
Input	Input Type	AC Input with Precharge
Input	DC Terminals	No
EMC	Filtering	Filtered
EMC	CM Jumper	Installed
Braking	Dynamic Braking	DB Transistor
Braking	Internal Braking Transistor	Yes
Interface	Embedded I/O	Yes
Interface	HIM	Blank / No HIM
Control	Variable Speed	Yes
Control	PID	Supported
Mechanical	Height	Approx. 881.5 mm
Mechanical	Width	Approx. 430 mm
Mechanical	Depth	Approx. 349.6 mm
Mechanical	Dimensions	Approx. 881.5 × 430 × 349.6 mm
Mechanical	Weight	Approx. 56.7 kg
Installation	Mounting	Electrical Cabinet
Application	Motor Type	Three-Phase AC Motor
Application	Normal-Duty Class	250 HP
Application	Heavy-Duty Class	200 HP
Application	Typical Loads	Pumps, fans, blowers, conveyors, compressors
Cooling	Cooling Method	Forced Air
Enclosure	Environmental Protection	Requires Protected Installation
Braking	Braking Application	Suitable for Dynamic-Braking Applications

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54. Five Same-Series Models — Detailed Table

Model	Voltage	ND Current	HD Current	ND HP	HD HP	Frame	Dimensions	Weight
20F1AND248JA0NNNNN	380–480 V	248 A	186 A	200 HP	150 HP	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20F1AND302JA0NNNNN	380–480 V	302 A	248 A	250 HP	200 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 56.7 kg
20F1AND367JA0NNNNN	380–480 V	367 A	Approx. 302 A	300 HP	250 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 56.7 kg
20F1AND456JA0NNNNN	380–480 V	456 A	Approx. 367 A	350 HP	300 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 56.7 kg
20F1AND477JA0NNNNN	380–480 V	477 A	Approx. 367 A	400 HP	300 HP	7	Approx. 881.5 × 430 × 349.6 mm	Approx. 124.7 kg*

*The listed weight can vary between references and configurations. For final mechanical design, use the applicable equipment drawing and shipping/installation data.

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55. Five Same-Brand Popular Models — Detailed Table

Model	Series	Voltage Class	ND Rating	HD Rating	Current	Typical Application	Dimensions	Weight
20F1AND302JA0NNNNN	PowerFlex 753	480 V	250 HP	200 HP	302 A	Large industrial motors	881.5 × 430 × 349.6 mm	56.7 kg
20F1AND248JA0NNNNN	PowerFlex 753	480 V	200 HP	150 HP	248 A	Pumps, fans, conveyors	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20F1AND477JA0NNNNN	PowerFlex 753	480 V	400 HP	300 HP	477 A	Very large industrial motors	Frame 7	Approx. 124.7 kg*
20G1AND302JA0NNNNN	PowerFlex 755	480 V class	250 HP class	200 HP class	302 A class	Advanced industrial control	Frame-dependent	Frame-dependent
25B-D024N114	PowerFlex 525	480 V class	Approx. 15 HP class	Application dependent	Medium class	Compact machines	Compact	Approx. 7–10 kg

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56. Recommended Models by Motor Size

Motor Requirement	Recommended Model	Reason
Around 150 HP	20F1AND186JA0NNNNN	Lower current requirement
Around 200 HP	20F1AND248JA0NNNNN	200 HP normal-duty class
Around 250 HP	20F1AND302JA0NNNNN	250 HP normal-duty / 200 HP heavy-duty
Around 300 HP	20F1AND367JA0NNNNN	Higher 300 HP class
Around 350 HP	20F1AND456JA0NNNNN	Higher current capacity
Around 400 HP	20F1AND477JA0NNNNN	Highest major PowerFlex 753 class

The motor’s actual current should always be checked before final selection.

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57. Recommended Model by Application

Application	Suggested Model Class	Main Reason
Large centrifugal pump	20F1AND248JA0NNNNN	High-power variable-speed control
250 HP pump	20F1AND302JA0NNNNN	250 HP ND capacity
Large fan	20F1AND302JA0NNNNN	High-current variable-speed operation
Heavy conveyor	20F1AND302JA0NNNNN	200 HP HD capacity and DB transistor
Large mixer	20F1AND302JA0NNNNN	Heavy-duty capability
High-inertia machine	20F1AND302JA0NNNNN	Dynamic-braking capability
300 HP motor	20F1AND367JA0NNNNN	Higher current capacity
350 HP motor	20F1AND456JA0NNNNN	Higher power range
400 HP motor	20F1AND477JA0NNNNN	Highest major PowerFlex 753 capacity

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58. Why Choose the 20F1AND302JA0NNNNN?

The 20F1AND302JA0NNNNN is a strong choice when the application requires:

• 480 VAC three-phase operation
• 302 A output current
• 250 HP normal-duty capability
• 200 HP heavy-duty capability
• Frame 7 construction
• Forced-air cooling
• Embedded I/O
• AC input with precharge
• Filtered configuration
• Installed CM jumper
• Dynamic-braking transistor
• Open-type cabinet installation
• Variable-speed motor control
• Industrial automation integration

The model is particularly attractive when the motor is too large for the 248 A class but does not yet require the additional capacity of the 367 A or 456 A models.

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59. Key Strengths at a Glance

Strength	Description
302 A Output	Suitable for large industrial motors
250 HP ND	High normal-duty power capability
200 HP HD	Stronger capability for demanding loads
480 VAC	Suitable for common high-power industrial systems
Frame 7	Robust high-power mechanical platform
Forced Air	Effective cooling for high-power applications
Dynamic-Braking Transistor	Supports braking-system integration
Embedded I/O	Simplifies basic machine integration
Filtered	Supports industrial EMC requirements
Precharge	Suitable high-power input configuration
No DC Terminals	Straightforward conventional AC-fed architecture
Open Type	Flexible cabinet integration
Variable Speed	Supports process optimization
Industrial Platform	Suitable for large automation systems

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60. Overall Product Assessment

The Allen-Bradley 20F1AND302JA0NNNNN is a high-capacity PowerFlex 753 AC variable frequency drive intended for large industrial motor-control applications.

Its principal specifications include:

• 380–480 VAC input
• 480 VAC nominal voltage class
• Three-phase operation
• 302 A output current
• 250 HP normal-duty rating
• 200 HP heavy-duty rating
• Approximately 186 kW normal-duty capacity
• Approximately 149 kW heavy-duty capacity
• Frame 7 construction
• Forced-air cooling
• IP20/IP00 open-type enclosure
• AC input with precharge
• No DC terminals
• Filtered configuration
• CM jumper installed
• Embedded I/O
• Blank configuration without HIM
• Integrated dynamic-braking transistor

Its approximate dimensions are:

881.5 × 430 × 349.6 mm

Its approximate equipment weight is:

56.7 kg

The model is especially well suited to large pumps, fans, blowers, conveyors, compressors, mixers, agitators, material-handling systems and high-power process machinery.

The integrated dynamic-braking transistor is a particularly useful feature for applications where the motor must decelerate significant rotating inertia or where braking performance is an important part of the machine design.

From a selection standpoint, the 20F1AND302JA0NNNNN occupies a very useful position within the PowerFlex 753 high-power range.

The 20F1AND248JA0NNNNN provides a lower-capacity alternative, while the 20F1AND367JA0NNNNN, 20F1AND456JA0NNNNN and 20F1AND477JA0NNNNN provide progressively greater current and horsepower capability.

Overall, the 20F1AND302JA0NNNNN can be described as a 250 HP normal-duty, 200 HP heavy-duty, 480 VAC, 302 A, Frame 7 industrial AC drive intended for demanding large-motor applications where adjustable speed, controlled acceleration and deceleration, industrial automation integration and dynamic-braking capability are important.