Company Information
E-mail		[email protected]
Mobile		+8615980777398
Whatsapp		+8615980777398
WeChat		15980777398

20F1AND125JN0NNNNN — Detailed Product Specifications, Applications, Advantages and Model Selection Guide

1. Product Overview

The 20F1AND125JN0NNNNN is a high-capacity industrial AC variable frequency drive belonging to the PowerFlex 753 series.

It is designed for three-phase motor-control applications where reliable speed regulation, controlled acceleration and deceleration, built-in I/O, flexible communication and practical integration into an industrial control system are required.

This model is rated for 380–480 V AC three-phase input, with a 125 A continuous output-current rating. It provides a 100 HP normal-duty rating and a 75 HP heavy-duty rating, making it suitable for a broad range of large pumps, fans, conveyors, blowers, compressors and general-purpose industrial machinery.

The drive uses a Frame 6 construction and forced-air cooling. It has an IP20/IP00 NEMA/UL Open Type configuration, AC input with precharge, no DC terminals, integrated filtering and a common-mode capacitor jumper installed.

One important characteristic of the exact 20F1AND125JN0NNNNN configuration is that it has no internal dynamic-braking transistor. This makes it particularly straightforward for applications where rapid regenerative braking is not required, while applications involving high inertia or very short stopping times require additional braking analysis.

---

2. Brand and Product Series

Category	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 753
Product Type	AC Variable Frequency Drive
Drive Classification	Industrial AC Drive
Drive Configuration	PowerFlex 753 AC Packaged Drive
Cooling	Forced Air
Frame	Frame 6
Voltage Class	480 V AC
Input Phase	3 Phase
Typical Installation	Electrical Cabinet / Protected Industrial Enclosure

The PowerFlex 753 series is designed around a modular industrial-drive architecture.

It is intended for applications where a standard variable frequency drive needs to do more than simply start and stop a motor.

Depending on the system configuration, the platform can support functions such as process control, PID regulation, industrial communication, feedback, additional I/O and safety-related control.

The 20F1AND125JN0NNNNN is positioned in the higher-power portion of the series, but it remains considerably smaller than the large Frame 7 drives used for very high-current motors.

---

3. Complete Product Identification

Parameter	Specification
Model	20F1AND125JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 753
Product Category	Industrial AC Drive
Drive Type	Variable Frequency Drive
Voltage Class	480 V AC
Input Voltage Range	380–480 V AC
Input Phase	3 Phase
Output Current	125 A
Normal-Duty Rating	100 HP
Normal-Duty Power	Approximately 74.6 kW
Heavy-Duty Rating	75 HP
Heavy-Duty Power	Approximately 56 kW
Frame	Frame 6
Cooling	Forced Air
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Input Configuration	AC Input with Precharge
DC Terminals	No
EMC Filtering	Filtered
CM Capacitor Jumper	Installed
Dynamic Braking	None
Dynamic-Braking Transistor	No
HIM	Blank / No HIM
Embedded I/O	Yes
Typical Application	Industrial AC motor control
Approx. Height	665 mm
Approx. Width	307 mm
Approx. Depth	345 mm
Approx. Dimensions	665 × 307 × 345 mm
Approx. Weight	56.7 kg

The dimensions above are rounded installation-planning values. The corresponding physical dimensions are approximately 26.2 × 12.1 × 13.6 inches, which convert to roughly 665 × 307 × 345 mm.

The approximate weight is 56.7 kg.

---

4. Product Introduction

The 20F1AND125JN0NNNNN is a variable frequency drive designed to control the speed and torque of three-phase AC motors.

Instead of supplying a motor with a fixed-frequency power source and allowing it to run at essentially one operating speed, the drive regulates the electrical output supplied to the motor.

This allows the motor to accelerate gradually, operate at different speeds and decelerate in a controlled manner.

That capability is valuable in many industrial environments.

A pump can operate according to changing flow requirements.

A fan can adjust its speed according to ventilation demand.

A conveyor can accelerate smoothly to reduce mechanical shock.

A production machine can use different motor speeds during different stages of the manufacturing process.

The 125 A output rating gives the model enough capacity for substantial industrial motors while keeping the physical size smaller than many of the larger Frame 7 configurations.

---

5. Main Electrical Parameters

Electrical Parameter	Specification
Model	20F1AND125JN0NNNNN
Input Voltage	380–480 V AC
Nominal Voltage Class	480 V AC
Input Phase	3 Phase
Input Frequency	50 / 60 Hz
Output Current	125 A
Normal-Duty Current	125 A
Heavy-Duty Current	Approximately 96 A
Normal-Duty Horsepower	100 HP
Heavy-Duty Horsepower	75 HP
Normal-Duty Power	Approximately 74.6 kW
Heavy-Duty Power	Approximately 56 kW
Input Type	AC Input with Precharge
DC Terminals	No
Output	Variable-frequency three-phase AC
Frame	6
Cooling	Forced Air
Filtering	Included
CM Jumper	Installed
Dynamic Braking	None
Dynamic-Braking Transistor	No
HIM	Blank / No HIM
Embedded I/O	Yes

---

6. Normal-Duty and Heavy-Duty Ratings

The two primary power ratings of this drive are:

100 HP / approximately 74.6 kW Normal Duty

and:

75 HP / approximately 56 kW Heavy Duty

These two ratings should be considered separately when selecting the drive.

Normal-duty operation is generally associated with applications where the motor does not experience severe or sustained overload conditions.

Typical examples include centrifugal pumps and fans.

Heavy-duty operation is intended for applications that place greater demands on the motor and drive during acceleration, operation or overload conditions.

Examples can include certain conveyors, mixers and other mechanical loads with higher torque requirements.

Therefore, a motor rated around 75 kW should not automatically be considered suitable simply because the drive has a 100 HP normal-duty rating.

The actual motor full-load current and machine load profile should always be checked.

---

7. 125 A Output Capacity

The 125 A output rating is one of the most important characteristics of the 20F1AND125JN0NNNNN.

This places the drive in the large industrial motor-control category.

When selecting a variable frequency drive, current is usually a more useful selection parameter than horsepower alone.

Motor current depends on several factors, including:

• Motor voltage
• Motor efficiency
• Power factor
• Motor design
• Rated speed
• Load characteristics
• Operating temperature
• Duty cycle

For that reason, the motor nameplate current should be compared directly with the drive’s available output-current rating.

---

8. 480 V Three-Phase Design

The 20F1AND125JN0NNNNN is designed for the 380–480 V AC, three-phase class.

This makes it suitable for industrial motor systems using 480 V-class distribution.

The 480 V class is especially useful for larger motors because higher voltage allows the same motor power to be delivered at lower current than would be required at a lower voltage.

For example, a 75 kW or 90 kW-class motor can require significant current at lower voltage, while a 480 V system can make large motor installations more manageable from a current-distribution perspective.

---

9. Frame 6 Construction

The drive uses a Frame 6 design.

Frame 6 provides a larger physical structure than compact machine-level drives and is intended for higher-power applications.

Mechanical Parameter	Specification
Model	20F1AND125JN0NNNNN
Frame	6
Approx. Height	665 mm
Approx. Width	307 mm
Approx. Depth	345 mm
Approx. Dimensions	665 × 307 × 345 mm
Approx. Weight	56.7 kg
Cooling	Forced Air
Enclosure	IP20/IP00
Enclosure Type	NEMA/UL Open Type
Installation	Electrical Cabinet / Protected Enclosure

The physical dimensions should be considered when designing the control cabinet.

Additional space should be provided for electrical connections, ventilation, maintenance access and cable routing.

---

10. Dimensions and Weight

Physical size is particularly important for Frame 6 equipment because the drive is considerably larger than compact variable frequency drives.

The approximate dimensions are:

665 mm high × 307 mm wide × 345 mm deep

The approximate weight is:

56.7 kg

Mechanical Specification	Value
Model	20F1AND125JN0NNNNN
Height	Approx. 665 mm
Width	Approx. 307 mm
Depth	Approx. 345 mm
Dimensions	Approx. 665 × 307 × 345 mm
Weight	Approx. 56.7 kg
Frame	6
Cooling	Forced Air
Enclosure	IP20/IP00

For installation planning, the mounting structure should be capable of supporting the drive’s weight with an appropriate safety margin.

---

11. Open-Type IP20/IP00 Construction

The drive uses an IP20/IP00 NEMA/UL Open Type enclosure configuration.

This means it is not intended to be exposed directly to uncontrolled industrial environmental conditions.

A suitable electrical cabinet or protected enclosure should normally be used.

The enclosure surrounding the drive should provide appropriate protection against:

• Dust
• Water
• Condensation
• Oil
• Metal particles
• Chemical contamination
• Accidental contact
• Excessive heat

The open-type construction also gives engineers greater flexibility when designing custom electrical panels.

---

12. Forced-Air Cooling

The drive uses forced-air cooling.

As drive power increases, thermal management becomes more important.

The cabinet should therefore provide a suitable path for cooling air.

Important considerations include:

• Air intake
• Air exhaust
• Fan performance
• Cabinet temperature
• Ambient temperature
• Clearance around the drive
• Dust accumulation
• Filter condition
• Heat generated by neighboring components

If multiple drives are installed inside one cabinet, their combined heat losses should be considered.

---

13. AC Input with Precharge

The 20F1AND125JN0NNNNN uses an AC input with precharge configuration.

Precharge is important because the drive’s internal DC bus contains capacitive components.

When the drive is energized, the precharge arrangement controls the initial charging process.

This helps prevent an uncontrolled charging surge and is especially important in larger industrial drives.

---

14. No DC Terminals

This configuration does not provide DC bus terminals for external common-DC applications.

That is an important point when comparing this drive with other drive configurations.

For a standard AC-fed motor application, this is generally not a problem.

However, if the machine is being designed around a common DC bus or shared regenerative energy system, the exact drive configuration must be evaluated before selection.

---

15. Filtering and Common-Mode Configuration

The 20F1AND125JN0NNNNN uses a filtered configuration with the common-mode capacitor jumper installed.

This configuration can be useful for industrial electrical systems where electromagnetic compatibility is an important design consideration.

The filter and grounding configuration should still be coordinated with:

• Motor cable type
• Cable length
• Grounding method
• Motor construction
• Control-system sensitivity
• Other electrical equipment
• Applicable installation requirements

---

16. Dynamic Braking

The exact model 20F1AND125JN0NNNNN does not include an internal dynamic-braking transistor.

This is an important distinction when comparing it with a similar catalog number that includes a braking transistor.

For applications where the motor simply needs to accelerate and decelerate normally, this configuration may be entirely suitable.

However, high-inertia applications may require additional consideration.

Potential examples include:

• Large conveyors
• Centrifuges
• High-speed fans
• Heavy rotating machinery
• Hoists
• Rapid-stop equipment

During deceleration, the motor can return energy to the drive.

If that energy causes the DC-bus voltage to rise beyond acceptable levels, an appropriate braking or regenerative solution may be necessary.

---

17. Product Advantages

17.1 High Motor Capacity

A 100 HP normal-duty rating gives this drive enough capacity for large industrial motors.

It can control motors substantially larger than those normally handled by compact machine drives.

---

17.2 125 A Output

The 125 A rating provides a comfortable operating range for many large industrial motor applications.

This makes the model suitable for substantial pumps, fans, conveyors and process equipment.

---

17.3 480 V Industrial Compatibility

The 480 V class makes the drive suitable for common industrial three-phase motor systems.

This is especially useful for large motor installations where electrical current becomes a significant design consideration.

---

17.4 Built-In I/O

Embedded I/O provides a convenient interface between the drive and machine-control equipment.

Basic control and monitoring functions can be connected directly to the drive without requiring every signal to pass through additional external equipment.

---

17.5 Modular Expansion

The PowerFlex 753 platform can be expanded through suitable option modules.

Depending on the application, this can provide additional:

• Communication
• Feedback
• I/O
• Safety
• Machine-control functionality

This makes the drive suitable for applications that may evolve over time.

---

17.6 Integrated Filtering

The filtered configuration can help with electromagnetic compatibility.

This is useful in industrial environments where drives operate alongside:

• PLC systems
• Sensors
• Industrial networks
• Measurement equipment
• HMI systems
• Other motor drives

---

17.7 Practical Frame 6 Size

Frame 6 provides a useful compromise between high motor capacity and physical size.

It is considerably more compact than the largest high-current Frame 7 drives while still providing up to 125 A output and 100 HP normal-duty capability.

---

18. Typical Product Applications

18.1 Industrial Pumps

Pumping systems are one of the most common applications for variable frequency drives.

The 20F1AND125JN0NNNNN can be used where the pump motor is within the drive’s voltage, current and duty ratings.

Applications can include:

• Process-water pumps
• Cooling-water pumps
• Industrial circulation systems
• Water-treatment systems
• Pressure-boosting systems
• Industrial fluid-transfer systems

Variable-speed control can help match pump operation to actual process requirements.

---

19. Fan and Blower Applications

Large fans and blowers can benefit from variable-speed operation.

Instead of operating continuously at maximum speed, the drive can adjust motor speed according to airflow demand.

Potential applications include:

• Factory ventilation
• Industrial exhaust systems
• Cooling systems
• Process-air systems
• Dust collection
• Ventilation equipment

The ability to operate below full speed can also reduce energy consumption in suitable variable-torque applications.

---

20. Conveyor Applications

The drive can be used for medium and large conveyor systems.

Controlled acceleration can help reduce the sudden mechanical stress associated with direct-on-line motor starting.

This can benefit:

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

Variable-speed control can also be used to synchronize conveyor speed with upstream and downstream machinery.

For conveyors requiring frequent rapid stops, however, the absence of an internal dynamic-braking transistor must be considered.

---

21. Compressor Applications

Compressors can require significant motor power.

Where the compressor is designed for variable-speed operation, the drive can provide:

• Controlled acceleration
• Adjustable speed
• Pressure regulation
• Process optimization
• Reduced starting stress

The compressor’s torque curve, minimum operating speed and cooling requirements should be reviewed before final drive selection.

---

22. Mixer and Agitator Applications

Industrial mixers and agitators often require variable speed.

A drive can provide a controlled startup and allow the process to operate at different speeds during different stages.

Applications can include:

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

For mixers with severe starting torque or frequent overload conditions, the heavy-duty rating should be used as the primary selection reference.

---

23. Material Handling

Material-handling equipment can also benefit from variable-speed control.

Examples include:

• Feed conveyors
• Transfer conveyors
• Bulk-material systems
• Production-line transport
• Packaging machinery
• Industrial material handling

Controlled acceleration can reduce mechanical shock and make the system easier to coordinate with other equipment.

---

24. Process-Control Applications

The drive can function as part of a larger automation system rather than merely as a motor starter.

Motor speed can be controlled using:

• PLC commands
• Analog references
• Digital inputs
• Process feedback
• Communication networks
• PID control

This allows the drive to participate directly in the machine’s process-control strategy.

---

25. PID Control

PID control can be particularly useful for pumps and fans.

For example, a pump may need to maintain constant pressure.

A fan may need to maintain a particular airflow.

A process system may need to maintain a constant flow rate.

The drive can use process feedback to adjust motor speed automatically.

This can make the system more responsive to changing operating conditions.

---

26. Communication and Automation Integration

The PowerFlex 753 platform can be integrated with industrial automation systems using appropriate communication modules.

Depending on the application, communication may be used for:

• Start/stop commands
• Speed references
• Fault monitoring
• Drive diagnostics
• Parameter configuration
• Process feedback
• Status monitoring
• Production data

The communication architecture should be selected according to the plant’s control-system requirements.

---

27. Safety Integration

The PowerFlex 753 platform can be incorporated into machinery requiring appropriate safety functions.

Potential applications include systems requiring:

• Safe torque removal
• Emergency-stop coordination
• Safety interlocking
• Machine guarding
• Controlled shutdown

The final safety system must be designed around the complete machine and its risk assessment.

---

28. Five Recommended Same-Series or Closely Related Models

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

Model	Voltage Class	ND Current	HD Current	ND Power	HD Power	Frame	Approx. Dimensions	Approx. Weight
20F1AND156JN0NNNNN	480 V AC	156 A	125 A	125 HP	100 HP	6	Approx. 665 × 307 × 345 mm	Approx. 56–58 kg
20F1AND186JN0NNNNN	480 V AC	186 A	156 A	150 HP	125 HP	6	Approx. 665 × 307 × 345 mm	Approx. 56–60 kg
20F1AND248JN0NNNNN	480 V AC	248 A	186 A	200 HP	150 HP	6	Approx. 665 × 307 × 345 mm	Approx. 57–62 kg
20F1AND302JN0NNNNN	480 V AC	302 A	248 A	250 HP	200 HP	7	Approx. 881 × 430 × 350 mm	Approx. 120–125 kg
20F1AND361JN0NNNNN	480 V AC	361 A	302 A	300 HP	250 HP	7	Approx. 881 × 430 × 350 mm	Approx. 120–130 kg

These models are useful when selecting a drive based on motor current and horsepower.

The 20F1AND156JN0NNNNN is a natural step up from the 125 A model.

The 20F1AND186JN0NNNNN and 20F1AND248JN0NNNNN provide progressively higher current capacity.

The 20F1AND302JN0NNNNN and 20F1AND361JN0NNNNN move into the larger Frame 7 range.

The exact option configuration should always be checked before treating one of these models as a replacement because braking, filtering, enclosure and interface configurations can vary by catalog number.

---

29. Same-Series Model Comparison

Model	ND Current	HD Current	ND Power	HD Power	Frame	Relative Capacity
20F1AND125JN0NNNNN	125 A	96 A	100 HP	75 HP	6	Reference
20F1AND156JN0NNNNN	156 A	125 A	125 HP	100 HP	6	Higher
20F1AND186JN0NNNNN	186 A	156 A	150 HP	125 HP	6	Higher
20F1AND248JN0NNNNN	248 A	186 A	200 HP	150 HP	6	Much Higher
20F1AND302JN0NNNNN	302 A	248 A	250 HP	200 HP	7	Very High

This progression makes the 20F1AND125JN0NNNNN a useful starting point for applications requiring approximately 125 A or less.

If the motor current is significantly higher, moving to the 156 A, 186 A, 248 A or 302 A configuration provides additional operating margin.

---

30. Five Popular Models from the Same Brand

The following models represent useful products from different capacity levels.

Model	Product Series	Voltage Class	Approx. Power Class	Typical Application	Approx. Dimensions	Approx. Weight
20F1AND125JN0NNNNN	PowerFlex 753	480 V	100 HP ND	Large pumps, fans, conveyors	665 × 307 × 345 mm	56.7 kg
20F1AND248JN0NNNNN	PowerFlex 753	480 V	200 HP ND	Large industrial motors	Approx. 665 × 307 × 345 mm	Approx. 57–62 kg
20G11ND011JA0NNNNN	PowerFlex 755	480 V class	Approx. 7.5 kW class	Industrial machinery	Approx. 400 × 250 × 250 mm	Approx. 12–20 kg
25B-D017N114	PowerFlex 525	480 V class	Approx. 7.5 kW class	Compact industrial machines	Approx. 250 × 150 × 180 mm	Approx. 5–8 kg
25B-D024N114	PowerFlex 525	480 V class	Approx. 11 kW class	Pumps, fans, machine automation	Approx. 250 × 180 × 200 mm	Approx. 7–10 kg

These five products cover very different power levels.

The PowerFlex 525 models are considerably smaller and are generally more appropriate for compact machinery.

The PowerFlex 755 model provides a higher-end platform for applications requiring more advanced drive functionality.

The PowerFlex 753 models are closer in application philosophy to the 20F1AND125JN0NNNNN.

---

31. Main Model Versus Compact Drive

Parameter	20F1AND125JN0NNNNN	Compact 7.5 kW-Class Drive	Compact 11 kW-Class Drive
Product Class	High-power industrial drive	Compact drive	Compact drive
Voltage	480 V class	480 V class	480 V class
ND Current	125 A	Much lower	Much lower
ND Power	100 HP	Around 10 HP	Around 15 HP
HD Power	75 HP	Lower	Lower
Frame	6	Compact	Compact
Cooling	Forced Air	Fan Cooled	Fan Cooled
Enclosure	IP20/IP00	Compact enclosure	Compact enclosure
Approx. Weight	56.7 kg	Around 5–10 kg	Around 7–12 kg
Installation	Electrical Cabinet	Machine Panel	Machine Panel
Typical Application	Large Industrial Motor	Small/Medium Machine	Medium Machine

This comparison highlights the intended application of the 20F1AND125JN0NNNNN.

It is not a compact machine-mounted inverter.

It is a substantial industrial drive intended to be integrated into an electrical cabinet.

---

32. Application Suitability

Application	Suitability	Reason
Large centrifugal pump	Excellent	Suitable current and normal-duty capacity
Large fan	Excellent	Good fit for variable-torque loads
Industrial blower	Excellent	High-power variable-speed control
Cooling-water pump	Excellent	Continuous industrial operation
Conveyor	Very Good	Controlled acceleration and speed
Compressor	Good	Requires compressor-specific verification
Mixer	Good	Suitable with correct duty selection
Agitator	Good	Variable-speed operation
Centrifuge	Conditional	Braking requirements require evaluation
Hoist	Conditional	Special braking and safety requirements
High-inertia machine	Conditional	No internal dynamic-braking transistor
Small machine	Poor	Drive would normally be oversized

---

33. Advantages for Pump Applications

For pump systems, the drive can adjust motor speed according to process requirements.

Instead of operating the pump continuously at maximum speed, the motor can be controlled according to:

• Pressure
• Flow
• Tank level
• Production demand
• Cooling requirements

This can improve process control and potentially reduce energy consumption.

The effect is particularly valuable for pumps that operate for long periods.

---

34. Advantages for Fan Applications

Fans and blowers can also benefit from variable-speed operation.

A fan does not necessarily need to run at full speed at all times.

The drive can adjust the motor speed according to:

• Airflow
• Pressure
• Temperature
• Production demand
• Ventilation requirements

This provides more flexible operation than a simple fixed-speed motor starter.

---

35. Advantages for Conveyor Applications

Conveyor motors can experience high mechanical stress during startup.

The drive can accelerate the motor gradually.

This can help reduce mechanical shock and improve system behavior.

The benefits can include:

• Smoother startup
• Reduced belt stress
• Reduced gearbox shock
• Improved speed control
• Easier synchronization
• Better production-line coordination

The braking requirement must be evaluated separately when the conveyor needs rapid stopping.

---

36. Advantages for Process Machinery

Industrial process machinery often requires different motor speeds during different stages of production.

For example:

A mixer may start slowly, operate at medium speed during loading and then increase speed during blending.

A pump may change speed according to pressure.

A blower may respond to temperature or airflow.

The drive provides the variable-speed capability necessary for these processes.

---

37. Installation Considerations

Because this is a Frame 6, 125 A industrial drive, cabinet planning is important.

The enclosure should provide adequate room for:

• Drive mounting
• Incoming power connections
• Motor cable connections
• Grounding
• Control wiring
• Communication modules
• Cooling airflow
• Maintenance access
• Future expansion

The approximate physical envelope of 665 × 307 × 345 mm should be treated as a starting point for cabinet layout rather than the complete cabinet requirement.

---

38. Electrical Installation

The electrical installation should be designed around the actual motor and facility requirements.

Installation Item	Main Consideration
Incoming Voltage	380–480 V AC compatibility
Incoming Phase	Three phase
Drive Current	125 A normal-duty
Motor Current	Must be checked against drive rating
Protective Equipment	Properly rated upstream protection
Motor Cable	Correct ampacity and installation method
Grounding	Appropriate protective grounding
Cabinet	Suitable environmental protection
Cooling	Adequate heat removal
EMC	Appropriate cable and grounding practices
Short-Circuit Rating	Suitable for the complete installation
Maintenance	Adequate physical access

---

39. Motor Selection Guidelines

The motor should be evaluated using its complete nameplate information.

Motor Parameter	Importance
Rated Voltage	Must be compatible with drive output
Full-Load Current	Primary sizing parameter
Rated Power	General capacity reference
Frequency	Required for motor setup
Rated Speed	Required for correct motor configuration
Power Factor	Important for motor data
Efficiency	Useful for motor configuration
Motor Type	Determines control method
Insulation	Important for inverter-fed operation
Encoder	Required for certain closed-loop applications
Load Type	Determines duty selection

The drive should be selected based on the actual motor current rather than horsepower alone.

---

40. Normal-Duty Versus Heavy-Duty Selection

Load Type	Typical Duty Consideration
Centrifugal Pump	Normal Duty
Centrifugal Fan	Normal Duty
Large Blower	Normal Duty
Conveyor	Heavy Duty / Application Specific
Mixer	Heavy Duty / Application Specific
Agitator	Heavy Duty / Application Specific
Crusher	Heavy Duty
Compressor	Application Specific
Centrifuge	Application Specific
Hoist	Special Application
High-Inertia Equipment	Application Specific

The actual duty should be determined from the motor load profile, acceleration requirements and overload conditions.

---

41. Dynamic-Braking Considerations

The 20F1AND125JN0NNNNN does not contain an internal dynamic-braking transistor.

This is not necessarily a disadvantage.

For many pumps and fans, rapid braking is not required.

The motor can be allowed to decelerate gradually.

However, if the machine needs to stop quickly, the energy returned by the motor during deceleration needs to be considered.

Applications requiring special attention include:

• High-speed conveyors
• Large rotating drums
• Centrifuges
• Hoists
• High-inertia machines
• Rapid-stop production machinery

The complete braking strategy should be selected according to:

• Motor power
• Load inertia
• Motor speed
• Stopping time
• Number of stops
• Braking frequency
• Thermal requirements

---

42. Product Strengths and Limitations

Category	Assessment
Motor Capacity	Excellent
Output Current	Excellent
480 V Compatibility	Excellent
Pump Applications	Excellent
Fan Applications	Excellent
Conveyor Applications	Very Good
Process Control	Very Good
Embedded I/O	Very Good
Modular Expansion	Very Good
Filtering	Very Good
Cabinet Integration	Good
Dynamic Braking	Not included
High-Inertia Rapid Stop	Requires additional evaluation
Compact Machine Use	Not recommended
Physical Size	Moderate to large
Installation Weight	56.7 kg

---

43. Detailed Technical Parameter Table

Category	Parameter	Specification
Product	Model	20F1AND125JN0NNNNN
Product	Brand	Allen-Bradley
Product	Series	PowerFlex 753
Product	Product Type	AC Variable Frequency Drive
Product	Drive Type	AC Packaged Drive
Electrical	Input Voltage	380–480 V AC
Electrical	Nominal Voltage	480 V AC class
Electrical	Input Phase	3 Phase
Electrical	Input Frequency	50 / 60 Hz
Electrical	Normal-Duty Current	125 A
Electrical	Heavy-Duty Current	Approx. 96 A
Electrical	Normal-Duty Power	100 HP / 74.6 kW
Electrical	Heavy-Duty Power	75 HP / 56 kW
Electrical	Output	Variable-frequency 3-phase AC
Construction	Frame	6
Construction	Cooling	Forced Air
Construction	Enclosure	IP20/IP00
Construction	Enclosure Type	NEMA/UL Open Type
Input	Input Configuration	AC Input with Precharge
Input	DC Terminals	No
EMC	Filtering	Filtered
EMC	CM Capacitor Jumper	Installed
Braking	Dynamic Braking	None
Braking	Dynamic-Braking Transistor	No
Interface	Embedded I/O	Yes
Interface	HIM	Blank / No HIM
Control	PID	Supported
Control	Variable Speed	Yes
Mechanical	Height	Approx. 665 mm
Mechanical	Width	Approx. 307 mm
Mechanical	Depth	Approx. 345 mm
Mechanical	Dimensions	Approx. 665 × 307 × 345 mm
Mechanical	Weight	Approx. 56.7 kg
Installation	Mounting	Electrical Cabinet
Cooling	Method	Forced Air
Application	Motor Type	Three-Phase AC Motor
Application	Normal-Duty Motor Class	Up to 100 HP
Application	Heavy-Duty Motor Class	Up to 75 HP
Application	Typical Loads	Pumps, fans, conveyors, blowers, compressors
Environmental	Installation	Protected Industrial Environment

---

44. Five Same-Series Models — Quick Selection Table

Model	ND Current	HD Current	ND Power	HD Power	Frame	Approx. Dimensions	Approx. Weight
20F1AND125JN0NNNNN	125 A	96 A	100 HP	75 HP	6	665 × 307 × 345 mm	56.7 kg
20F1AND156JN0NNNNN	156 A	125 A	125 HP	100 HP	6	Approx. 665 × 307 × 345 mm	Approx. 56–58 kg
20F1AND186JN0NNNNN	186 A	156 A	150 HP	125 HP	6	Approx. 665 × 307 × 345 mm	Approx. 56–60 kg
20F1AND248JN0NNNNN	248 A	186 A	200 HP	150 HP	6	Approx. 665 × 307 × 345 mm	Approx. 57–62 kg
20F1AND302JN0NNNNN	302 A	248 A	250 HP	200 HP	7	Approx. 881 × 430 × 350 mm	Approx. 120–125 kg

---

45. Five Same-Brand Models — Quick Comparison

Model	Series	Voltage Class	Power Class	Current Class	Dimensions	Weight
20F1AND125JN0NNNNN	PowerFlex 753	480 V	100 HP ND	125 A	665 × 307 × 345 mm	56.7 kg
20F1AND248JN0NNNNN	PowerFlex 753	480 V	200 HP ND	248 A	Approx. 665 × 307 × 345 mm	Approx. 57–62 kg
20G11ND011JA0NNNNN	PowerFlex 755	480 V class	7.5 kW class	Low-current	Approx. 400 × 250 × 250 mm	Approx. 12–20 kg
25B-D017N114	PowerFlex 525	480 V class	7.5 kW class	Low-current	Approx. 250 × 150 × 180 mm	Approx. 5–8 kg
25B-D024N114	PowerFlex 525	480 V class	11 kW class	Low/medium current	Approx. 250 × 180 × 200 mm	Approx. 7–10 kg

---

46. Overall Product Assessment

The 20F1AND125JN0NNNNN is a high-capacity industrial AC drive designed around the PowerFlex 753 platform.

Its most important specifications are:

380–480 V AC three-phase input

125 A normal-duty output

approximately 96 A heavy-duty output

100 HP / 74.6 kW normal-duty capacity

75 HP / approximately 56 kW heavy-duty capacity

Frame 6

Forced-air cooling

IP20/IP00 open-type construction

AC input with precharge

No DC terminals

Filtered configuration

Common-mode capacitor jumper installed

Embedded I/O

No internal dynamic-braking transistor

The physical size is approximately 665 × 307 × 345 mm, with an approximate weight of 56.7 kg.

Its main strength is the combination of high motor capacity, 480 V industrial compatibility, embedded I/O, modular architecture and practical variable-speed control.

The model is particularly well suited to large pumps, industrial fans, blowers, conveyors, compressors, mixers and general process machinery.

For pump and fan applications, its normal-duty rating provides a useful operating range for large variable-torque motors.

For conveyors and other mechanically demanding applications, the 75 HP heavy-duty rating becomes more important.

The main point to keep in mind is the absence of an internal dynamic-braking transistor. This is perfectly reasonable for many applications with normal acceleration and deceleration, but high-inertia equipment or machinery requiring rapid stopping needs a separate braking assessment.

The Frame 6 construction also provides a useful balance between electrical capacity and physical size. It is substantially more compact than the largest Frame 7 high-current drives while still supporting a 125 A output rating.

For a motor requiring slightly more current, the 20F1AND156JN0NNNNN is a logical next step.

For larger motors, the 20F1AND186JN0NNNNN, 20F1AND248JN0NNNNN and 20F1AND302JN0NNNNN provide progressively higher current capacity.

Overall, the 20F1AND125JN0NNNNN can be regarded as a 100 HP-class, 480 V, Frame 6 industrial variable frequency drive, particularly suitable for large general-purpose motor applications where reliable variable-speed control, embedded I/O and cabinet-based installation are required.