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

Allen-Bradley 20G1ANF020JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The Allen-Bradley 20G1ANF020JN0NNNNN is a PowerFlex 755 AC drive designed for industrial three-phase motor control applications using a 690 VAC power system.

This model provides a 20 A Normal Duty output rating and 15 kW Normal Duty power rating, together with a 15 A Heavy Duty rating and 11 kW Heavy Duty power rating.

It is a Frame 6, forced-air-cooled drive with an open IP20/IP00 construction. The drive is configured for AC input with precharge, has no external DC terminals, includes filtering with the CM jumper installed, and does not include an internal dynamic-braking transistor.

The integrated communication capability is another important characteristic of the model. Embedded EtherNet/IP allows the drive to be incorporated into a larger industrial automation system for motor commands, status monitoring, diagnostics, and operating-data exchange.

For applications involving pumps, fans, blowers, conveyors, compressors, mixers, process machinery, and other industrial equipment, the combination of 690 VAC operation, 20 A output capability, flexible duty ratings, and network integration makes this model a practical member of the PowerFlex 755 family.

---

2. Brand and Product Series

Item	Specification
Brand	Allen-Bradley
Product Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Exact Model	20G1ANF020JN0NNNNN
Voltage Class	690 VAC
Phase	Three-phase
Normal Duty Power	15 kW
Heavy Duty Power	11 kW
Normal Duty Current	20 A
Heavy Duty Current	15 A
Frame Size	Frame 6
Cooling Method	Forced Air
Enclosure	IP20/IP00, Open Type
Communication	Embedded EtherNet/IP
Input Configuration	AC Input with Precharge
External DC Terminals	None
EMC Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	No Internal Dynamic-Braking Transistor
HIM	Blank / No HIM
Approx. Dimensions	665.5 × 308.0 × 346.4 mm
Approx. Weight	38.6 kg

The product belongs specifically to the PowerFlex 755 family, a high-performance industrial AC drive platform intended for larger and more demanding motor-control systems than compact machine-level drives.

The 20G1ANF020JN0NNNNN is positioned in the 690 VAC portion of the PowerFlex 755 range and provides a 20 A Normal Duty output class.

---

3. Complete Model Number

The complete catalog number is:

20G1ANF020JN0NNNNN

The complete model number is important because the individual characters identify important configuration information.

A PowerFlex 755 drive with the same general product family can have different voltage classes, current ratings, filtering arrangements, common-mode capacitor configurations, braking configurations, enclosure arrangements, and operator-interface options.

For replacement projects, the complete catalog number should therefore be recorded rather than identifying the equipment only as a “PowerFlex 755.”

Model Identification	Description
20G1ANF020JN0NNNNN	Complete catalog number
20G1	PowerFlex 755 family
F	690 VAC voltage class
020	20 A output-current class
J	CM jumper installed
N0	No internal dynamic-braking transistor configuration
NNNNN	Additional factory configuration positions

The 020 portion identifies the 20 A current class.

The F voltage designation identifies the 690 VAC class.

The J configuration indicates the CM jumper-installed arrangement, while the N0 configuration corresponds to the version without an internal dynamic-braking transistor.

---

4. Main Electrical Parameters

Parameter	Specification
Model	20G1ANF020JN0NNNNN
Input Voltage Class	690 VAC
Input Phase	Three-phase
Normal Duty Continuous Current	20 A
Normal Duty 1-Minute Current	22 A
Normal Duty 3-Second Current	30 A
Normal Duty Power	15 kW
Heavy Duty Continuous Current	15 A
Heavy Duty 1-Minute Current	22.5 A
Heavy Duty 3-Second Current	30 A
Heavy Duty Power	11 kW
Cooling	Forced Air
Frame	Frame 6
Input	AC Input with Precharge
External DC Terminals	No
EMC Filter	Filtered
CM Jumper	Installed
Dynamic Braking	None / No Internal DB Transistor
Communication	Embedded EtherNet/IP
Enclosure	IP20/IP00 Open Type
Approx. Dimensions	665.5 × 308.0 × 346.4 mm
Approx. Weight	38.6 kg

---

5. Normal Duty Rating

The 20G1ANF020JN0NNNNN has a Normal Duty continuous output rating of 20 A and a Normal Duty power rating of 15 kW.

This rating is suitable for industrial applications where the motor normally operates without continuous heavy overload conditions.

The Normal Duty short-term current capability reaches approximately 22 A for one minute and 30 A for three seconds.

These short-duration capabilities provide additional current capacity during temporary operating conditions such as acceleration, transient loading, or brief increases in mechanical demand.

When selecting a drive, the actual motor nameplate current should be compared with the drive rating. The motor’s nominal kW rating is useful, but current is one of the most important selection parameters.

---

6. Heavy Duty Rating

Under Heavy Duty operation, the model is rated at 15 A continuous and 11 kW.

The Heavy Duty rating is intended for applications with greater load stress, more demanding acceleration characteristics, or higher overload requirements.

The Heavy Duty short-term rating is approximately 22.5 A for one minute and 30 A for three seconds.

This distinction is important because a 15 kW motor application and an 11 kW Heavy Duty application can require different drive selections even when the physical drive platform is the same.

The actual duty cycle, motor current, acceleration requirements, mechanical inertia, and overload conditions should all be evaluated before final selection.

---

7. 690 VAC Three-Phase Design

The 690 VAC rating is one of the most important characteristics of the 20G1ANF020JN0NNNNN.

This voltage class is intended for industrial three-phase motor systems using higher-voltage motor power distribution.

The higher-voltage architecture is commonly encountered in larger industrial facilities, process plants, pumping systems, production equipment, material-handling systems, and other installations where 690 VAC motors are used.

The motor and incoming electrical system should be checked carefully before installation.

A 690 VAC drive should not be substituted into a lower-voltage application simply because the output-current rating appears appropriate.

---

8. Frame 6 Mechanical Design

The 20G1ANF020JN0NNNNN uses a Frame 6 mechanical platform.

Frame size is important when designing an electrical cabinet, skid, control panel, or motor-control center because it determines the approximate physical space required for the drive.

The approximate overall dimensions are:

665.5 × 308.0 × 346.4 mm

The approximate weight is:

38.6 kg

The actual installation envelope should allow additional space for cable routing, terminal access, cooling airflow, service work, mounting hardware, and any associated accessories.

Mechanical Parameter	Specification
Model	20G1ANF020JN0NNNNN
Frame Size	Frame 6
Cooling	Forced Air
Approx. Height	665.5 mm
Approx. Width	308.0 mm
Approx. Depth	346.4 mm
Approx. Weight	38.6 kg
Enclosure Style	Open Type
Enclosure Rating	IP20/IP00
Installation	Electrical Cabinet / Suitable Enclosure
Cooling Requirement	Adequate Airflow Required

The dimensions are useful for preliminary cabinet planning, while the final mechanical design should allow suitable installation and maintenance clearances.

---

9. Forced-Air Cooling

The drive uses forced-air cooling.

Power electronics generate heat during operation, particularly when the drive is carrying substantial motor current for extended periods.

The cabinet should therefore provide adequate ventilation and should not allow hot air to accumulate around the drive.

The cooling airflow path should be kept clean.

Dust, fibers, oil mist, or other industrial contamination can reduce the effectiveness of cooling over time.

For demanding installations, cabinet temperature, ambient conditions, altitude, airflow, and equipment density should all be considered.

---

10. Embedded EtherNet/IP

Embedded EtherNet/IP is one of the most useful features of this model for modern industrial automation.

The drive can communicate with a compatible automation system for control and monitoring functions.

Depending on the application architecture, information such as drive status, motor speed, current, operating conditions, alarms, and fault information can be exchanged through the network.

This makes the drive suitable for installations where several motor-control devices are coordinated through a centralized automation system.

It can also simplify the control architecture compared with systems that rely heavily on individual hardwired signals for every drive status and command.

---

11. AC Input With Precharge

The 20G1ANF020JN0NNNNN uses an AC input configuration with precharge.

Precharge is an important part of the drive’s power-input architecture because the DC bus needs to be charged in a controlled manner when the drive is energized.

This model does not provide external DC terminals.

Consequently, applications should be designed around the specified AC-input configuration rather than assuming that the drive can be integrated into an external DC-bus system.

---

12. EMC Filtering

The model uses a filtered configuration.

Electromagnetic compatibility is important in variable-frequency-drive installations because the switching action of the power electronics can produce electrical noise.

The filter configuration provides an appropriate starting point for installations where EMC considerations are important.

However, system-level EMC performance also depends on installation practices.

Motor cable selection, grounding, shielding, cable routing, cabinet construction, control wiring, and separation between power and signal cables all influence the final result.

---

13. CM Jumper Installed

The catalog number specifies the CM jumper installed configuration.

This is a meaningful difference when comparing the model with other catalog numbers that have the corresponding jumper removed.

The common-mode configuration affects the way the drive interacts with the motor system and grounding arrangement.

For replacement work, it is important to match the configuration rather than assuming that two drives with identical voltage and current ratings are electrically identical.

---

14. No Internal Dynamic-Braking Transistor

The 20G1ANF020JN0NNNNN does not include an internal dynamic-braking transistor.

This feature should be considered when evaluating applications that require rapid deceleration or frequent stopping.

During deceleration, a motor can return energy to the drive’s DC bus.

If the application has significant inertia and requires rapid stopping, the braking strategy needs to be evaluated separately.

For applications such as pumps or fans with relatively gradual acceleration and deceleration, the absence of an internal dynamic-braking transistor may be less significant.

For high-inertia conveyors, centrifuges, hoists, or machinery with frequent rapid stopping, braking requirements deserve much more attention.

---

15. Product Introduction

The PowerFlex 755 series is designed for industrial AC motor-control applications where flexibility, networking, performance, and integration are important.

The 20G1ANF020JN0NNNNN represents the 20 A, 690 VAC version within the 690 VAC PowerFlex 755 range.

Its 15 kW Normal Duty rating provides a useful solution for industrial motors operating under normal load conditions.

For applications requiring Heavy Duty operation, the model provides an 11 kW Heavy Duty rating.

This dual-duty structure makes it possible to select the drive based on the actual load profile instead of relying solely on a simple motor horsepower conversion.

---

16. Industrial Pump Applications

The drive can be used in industrial pumping systems where variable-speed operation is required.

Typical applications include:

• Water circulation
• Process-water pumping
• Cooling-water systems
• Industrial fluid transfer
• Water treatment equipment
• Process pumping
• Industrial utility systems

The ability to vary motor speed can help match pump operation to process demand.

Instead of operating continuously at one fixed speed, the motor can be controlled according to system requirements.

For pumps with changing flow requirements, variable-speed control can also simplify process regulation.

---

17. Fan and Blower Applications

Fans and blowers are another important application category.

Industrial ventilation, exhaust systems, cooling systems, air-handling equipment, and process blowers can require different airflow levels during different operating conditions.

A variable-frequency drive allows motor speed to be adjusted according to the required airflow.

The 15 kW Normal Duty rating provides a useful operating range for medium-power industrial fan and blower systems, provided that the actual motor current remains within the drive’s rating.

---

18. Conveyor Applications

Conveyors often require controlled acceleration and adjustable speed.

The PowerFlex 755 platform can be used for conveyor motors where production speed needs to change according to the process.

For example, conveyor speed may need to be synchronized with another machine, adjusted for different product types, or reduced during inspection and maintenance operations.

The embedded EtherNet/IP capability is also useful in automated material-handling systems where multiple drives communicate with a common control system.

---

19. Compressor Applications

Industrial compressors can require controlled acceleration and stable motor operation.

A variable-frequency drive can provide speed control rather than relying solely on fixed-speed motor operation.

Applications can include industrial air compressors, process compressors, ventilation-related compressor systems, and other machinery where variable motor speed is appropriate.

Compressor applications should be evaluated carefully because the mechanical load profile can change significantly during starting and operating conditions.

---

20. Mixer and Agitator Applications

Mixers and agitators often need different speeds during different production stages.

A drive can allow the motor to start gradually and operate at different speeds according to the process.

This can be useful in chemical processing, food processing, material mixing, wastewater treatment, and other industrial processes.

When the mixer contains a heavy or highly viscous material, the starting torque requirement should be considered carefully.

---

21. Material-Handling Applications

Material-handling machinery frequently benefits from controlled acceleration and speed adjustment.

The drive can be applied to conveyors, feeders, transfer systems, processing lines, and similar equipment.

Network integration can also make it easier to coordinate several motors.

For example, one drive can be monitored through the automation system while another drive is controlled according to the production sequence.

---

22. Process Machinery Applications

The PowerFlex 755 platform is suitable for process machinery where motor speed needs to be controlled over a broad operating range.

Applications may include:

• Process pumps
• Fans
• Blowers
• Mixers
• Agitators
• Conveyors
• Material feeders
• Industrial machinery
• Utility equipment
• Production equipment

The exact suitability depends on the motor current, duty cycle, acceleration requirements, environmental conditions, and control method.

---

23. Main Product Advantages

23.1 20 A Output Capacity

The 20 A Normal Duty output rating gives the model a higher current capability than the 12 A and 15 A models in the same 690 VAC group.

This makes it useful when the motor requirement is above the capacity of the smaller drives.

---

23.2 15 kW Normal Duty Rating

The 15 kW Normal Duty rating provides a useful solution for medium-power industrial motors operating under normal load conditions.

It is an important selection point within the 690 VAC PowerFlex 755 range.

---

23.3 11 kW Heavy Duty Rating

The 11 kW Heavy Duty rating provides additional flexibility for applications where greater overload capability is required.

This is especially useful when the application has demanding starting conditions or significant temporary load increases.

---

23.4 690 VAC Capability

The 690 VAC class allows the drive to be used in higher-voltage industrial motor systems.

This makes the model suitable for applications that require higher-voltage three-phase motor control.

---

23.5 Embedded EtherNet/IP

The embedded network capability allows the drive to become part of a larger automation system.

This can simplify monitoring and command functions while providing better access to operating information.

---

23.6 Frame 6 Platform

Frame 6 provides a substantial industrial hardware platform suitable for higher-power motor-control applications.

The frame also provides a consistent mechanical platform across several nearby current ratings in the same 690 VAC family.

---

23.7 Filtered Configuration

The filtered configuration is useful for industrial installations where electromagnetic compatibility must be considered.

Proper installation practices remain necessary for overall EMC performance.

---

23.8 CM Jumper Installed

The factory-installed CM jumper configuration provides a defined common-mode configuration.

This is especially important for replacement applications where the configuration of the existing drive must be matched.

---

23.9 Flexible Application Range

The model can be considered for pumps, fans, blowers, conveyors, compressors, mixers, material-handling systems, and process equipment.

This broad application range makes it a practical industrial drive for a variety of motor-control requirements.

---

24. Five Closely Related 690 VAC PowerFlex 755 Models

The following models are close alternatives within the same 690 VAC PowerFlex 755 family.

Model	Voltage	Normal Duty	Heavy Duty	Frame	Approx. Dimensions	Approx. Weight
20G1ANF012JN0NNNNN	690 VAC, 3 Ph	12 A / 7.5 kW	9 A / 5.5 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF015JN0NNNNN	690 VAC, 3 Ph	15 A / 11 kW	12 A / 7.5 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF020JN0NNNNN	690 VAC, 3 Ph	20 A / 15 kW	15 A / 11 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF023JN0NNNNN	690 VAC, 3 Ph	23 A / 18.5 kW	20 A / 15 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF030JN0NNNNN	690 VAC, 3 Ph	30 A / 22 kW	23 A / 18.5 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg

These models form a practical progression around the 20 A drive.

The 20G1ANF012JN0NNNNN is appropriate when the required current is lower, while the 20G1ANF023JN0NNNNN and 20G1ANF030JN0NNNNN provide additional capacity for larger motors.

The models also retain the same general 690 VAC PowerFlex 755 family architecture, which can simplify comparison during system design.

---

25. Five Additional Related 690 VAC Models

For applications requiring more motor capacity, the same 690 VAC series extends into higher-current ranges.

Model	Normal Duty	Heavy Duty	Frame	Approx. Dimensions	Approx. Weight
20G1ANF034JN0NNNNN	34 A / 30 kW	30 A / 22 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF046JN0NNNNN	46 A / 37 kW	34 A / 30 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF061JN0NNNNN	61 A / 55 kW	50 A / 45 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF082JN0NNNNN	82 A / 75 kW	61 A / 55 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF119JN0NNNNN	119 A / 110 kW	98 A / 90 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg

These models are useful when the motor application is substantially larger than the 15 kW range.

As the current rating increases, the system designer should not assume that the entire installation remains identical. Incoming protection, cabling, thermal management, cabinet layout, and motor requirements should all be reviewed.

---

26. Five Same-Brand Popular Models

The following five models provide examples of other commonly encountered variable-frequency drives within the same brand family.

Model	Product Series	Voltage	Main Rating	Application Position	Approx. Dimensions	Approx. Weight
25B-D017N104	PowerFlex 525	380–480 VAC, 3 Ph	17 A / approx. 10 HP class	Compact industrial drive	Approx. 130 × 260 × 212 mm	Approx. 3.0 kg
25B-D024N114	PowerFlex 525	380–480 VAC, 3 Ph	24 A / approx. 15 HP class	Compact industrial drive	Approx. 130 × 260 × 212 mm	Approx. 3.2 kg
20F11ND034JA0NNNNN	PowerFlex 753	480 VAC class	34 A / approx. 25 HP class	Industrial motor control	Approx. 350 × 170 × 200 mm	Approx. 10 kg
20G1AND125JA0NNNNN	PowerFlex 755	480 VAC, 3 Ph	125 A / 100 HP ND class	Large industrial drive	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANE125JA0NNNNN	PowerFlex 755	600 VAC, 3 Ph	125 A / 125 HP ND class	High-power industrial drive	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg

The PowerFlex 525 models are physically much smaller and are generally suitable for compact machinery and applications where installation space is limited.

The PowerFlex 753 and PowerFlex 755 families are designed for more substantial industrial motor-control applications.

The PowerFlex 755 models listed above provide examples of different voltage and current classes within the larger industrial-drive platform.

---

27. Comparison With the 20G1ANF015JN0NNNNN

The 20G1ANF015JN0NNNNN is the immediately smaller current class compared with the 20G1ANF020JN0NNNNN.

Parameter	20G1ANF015JN0NNNNN	20G1ANF020JN0NNNNN
Voltage	690 VAC	690 VAC
Normal Duty Current	15 A	20 A
Normal Duty Power	11 kW	15 kW
Heavy Duty Current	12 A	15 A
Heavy Duty Power	7.5 kW	11 kW
Frame	6	6
Cooling	Forced Air	Forced Air
EMC Filter	Yes	Yes
CM Jumper	Installed	Installed
Dynamic-Braking Transistor	No	No
Approx. Dimensions	665.5 × 308 × 346.4 mm	665.5 × 308 × 346.4 mm
Approx. Weight	38.6 kg	38.6 kg

The major difference is output capacity.

The 20 A model provides an additional current margin and increases the Normal Duty power rating from 11 kW to 15 kW.

This makes the 20 A model appropriate when the motor current exceeds the practical capacity of the 15 A version.

---

28. Comparison With the 20G1ANF023JN0NNNNN

The 20G1ANF023JN0NNNNN is the next higher current class in the same sequence.

Parameter	20G1ANF020JN0NNNNN	20G1ANF023JN0NNNNN
Voltage	690 VAC	690 VAC
Normal Duty Current	20 A	23 A
Normal Duty Power	15 kW	18.5 kW
Heavy Duty Current	15 A	20 A
Heavy Duty Power	11 kW	15 kW
Frame	6	6
Cooling	Forced Air	Forced Air
EMC Filter	Yes	Yes
CM Jumper	Installed	Installed
Dynamic-Braking Transistor	No	No
Approx. Dimensions	665.5 × 308 × 346.4 mm	665.5 × 308 × 346.4 mm
Approx. Weight	38.6 kg	38.6 kg

This comparison illustrates the gradual capacity progression available within the same 690 VAC family.

For a motor close to the boundary between these ratings, actual motor current and duty cycle should be considered rather than selecting the drive solely from the motor’s nominal kW rating.

---

29. Application Advantages for Pump Systems

For pump systems, adjustable speed can provide a practical way of matching motor operation to process demand.

The motor does not necessarily need to operate at full speed continuously.

For industrial water circulation, cooling systems, process-fluid transfer, and similar applications, speed control can provide a more flexible operating range.

The 690 VAC rating is also suitable for higher-voltage industrial pump motors.

---

30. Application Advantages for Fan and Blower Systems

Fans and blowers frequently experience changing airflow requirements.

A variable-frequency drive allows the motor speed to change according to the required airflow.

This can be useful for ventilation, process exhaust, industrial cooling, air-handling, and other applications.

The PowerFlex 755 communication capability also allows fan and blower operation to be integrated with broader plant-control systems.

---

31. Application Advantages for Conveyor Systems

Conveyors can benefit from controlled acceleration and adjustable speed.

Gradual acceleration can help reduce sudden mechanical stress on the conveyor system.

Variable-speed operation also makes it easier to match conveyor speed to production requirements.

For automated material-handling systems, network communication can provide additional flexibility for coordinating several drive-controlled machines.

---

32. Application Advantages for Compressor Systems

Compressor systems often have specific acceleration and load requirements.

The drive can provide controlled motor acceleration and adjustable operating speed.

This can be useful in applications where compressor output needs to follow process demand.

The actual compressor characteristics should be checked carefully because compressor loads can vary substantially during starting and normal operation.

---

33. Application Advantages for Mixers and Agitators

Mixing equipment often needs different motor speeds for different stages of production.

The drive allows the motor to accelerate gradually and operate at controlled speeds.

This can improve process flexibility and reduce the need for mechanical speed-control arrangements.

For heavy-load mixers, the Heavy Duty rating should be evaluated carefully.

---

34. Application Advantages for Material Handling

Material-handling equipment can require accurate control of acceleration, speed, and stopping.

The PowerFlex 755 platform provides a suitable control architecture for many conveyor and material-transfer applications.

Embedded EtherNet/IP can also allow the drive to exchange information with the broader production-control system.

---

35. Cabinet Installation

The 20G1ANF020JN0NNNNN is an open-type IP20/IP00 drive.

It should therefore be installed inside an appropriate electrical enclosure or cabinet that provides suitable protection from the surrounding environment.

The cabinet must provide enough mechanical strength to support the approximately 38.6 kg drive.

Adequate clearance should be provided around the cooling path.

The cabinet design should also consider:

• Incoming power wiring
• Motor cable routing
• Control wiring
• Communication cables
• Grounding
• Ventilation
• Service access
• Maintenance access
• Heat dissipation

A good cabinet layout can significantly simplify future maintenance.

---

36. Motor Selection

Motor selection should be based on actual operating requirements.

Important parameters include:

• Motor rated voltage
• Motor rated current
• Motor power
• Motor frequency
• Motor speed
• Starting torque
• Continuous load
• Overload requirements
• Acceleration time
• Deceleration time
• Mechanical inertia

For this model, the motor system should be compatible with the 690 VAC three-phase voltage class.

A 15 kW motor may be suitable under Normal Duty conditions, but the actual nameplate current should always be checked.

---

37. Dynamic-Braking Considerations

Because the model does not include an internal dynamic-braking transistor, braking requirements need to be considered separately.

A high-inertia load can return substantial energy to the drive during deceleration.

If the machine must stop quickly, an appropriate braking strategy may be required.

This is particularly important for:

• High-inertia conveyors
• Centrifugal equipment
• Hoisting machinery
• Rapidly stopping production machinery
• Large rotating equipment

For applications with gradual deceleration, the braking requirement may be considerably lower.

---

38. Maintenance Considerations

Maintenance should include periodic inspection of the cooling system, electrical connections, cabinet environment, and motor wiring.

The cooling path should remain free of excessive dust and contamination.

The cabinet should be checked for signs of overheating.

Electrical connections should be maintained according to the installation’s maintenance procedures.

Communication wiring should also be inspected in networked installations.

The drive’s fault history and operating status can provide useful information when investigating intermittent problems.

---

39. Troubleshooting Considerations

Troubleshooting should begin by separating the problem into electrical, motor, mechanical, drive, and communication categories.

Power Problems

Check incoming three-phase power, protection devices, electrical connections, and supply conditions.

Motor Problems

Check motor wiring, motor insulation, motor current, motor nameplate information, and mechanical loading.

Drive Problems

Check drive status, fault conditions, alarms, operating parameters, cooling conditions, and power-electronic behavior.

Communication Problems

Check network connections, controller configuration, communication status, and Ethernet cabling.

Mechanical Problems

Check pumps, fans, conveyors, gearboxes, couplings, bearings, and other driven equipment.

This structured approach can help distinguish a drive problem from a motor or mechanical problem.

---

40. Product Selection Checklist

Selection Category	Requirement
Model	20G1ANF020JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Voltage	690 VAC
Phase	Three-phase
Normal Duty Current	20 A
Normal Duty Power	15 kW
Heavy Duty Current	15 A
Heavy Duty Power	11 kW
Normal Duty 1-Minute Current	22 A
Normal Duty 3-Second Current	30 A
Heavy Duty 1-Minute Current	22.5 A
Heavy Duty 3-Second Current	30 A
Frame	6
Cooling	Forced Air
EMC Filter	Yes
CM Jumper	Installed
Dynamic Braking	No Internal DB Transistor
Communication	Embedded EtherNet/IP
Input	AC with Precharge
External DC Terminals	None
Enclosure	IP20/IP00 Open Type
Approx. Dimensions	665.5 × 308.0 × 346.4 mm
Approx. Weight	38.6 kg

---

41. Five Models for Motor-Capacity Comparison

Model	Voltage	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame	Approx. Dimensions	Approx. Weight
20G1ANF012JN0NNNNN	690 VAC	12 A	7.5 kW	9 A	5.5 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF015JN0NNNNN	690 VAC	15 A	11 kW	12 A	7.5 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF020JN0NNNNN	690 VAC	20 A	15 kW	15 A	11 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF023JN0NNNNN	690 VAC	23 A	18.5 kW	20 A	15 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF030JN0NNNNN	690 VAC	30 A	22 kW	23 A	18.5 kW	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg

This group provides a convenient progression around the 20 A model.

For applications around the 15 kW level, the 20G1ANF020JN0NNNNN is a useful central point in the selection range.

---

42. Five Related Models With Different Configurations

The following models are useful when the electrical rating remains similar but configuration requirements change.

Model	Voltage	Current	Normal Duty Power	CM Jumper	Dynamic Braking	Frame	Approx. Dimensions	Approx. Weight
20G1ANF020AA0NNNNN	690 VAC	20 A	15 kW	Removed	Internal DB Transistor	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF020AN0NNNNN	690 VAC	20 A	15 kW	Removed	None	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF020JA0NNNNN	690 VAC	20 A	15 kW	Installed	Internal DB Transistor	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1ANF020JN0NNNNN	690 VAC	20 A	15 kW	Installed	None	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg
20G1AGF020JN0NNNNN	690 VAC	20 A	15 kW	Installed	None	6	Approx. 665.5 × 308 × 346.4 mm	Approx. 38.6 kg

This comparison demonstrates why the complete catalog number matters.

The four closely related 20G1ANF020 configurations can have the same basic voltage, current, power, and frame rating while differing in common-mode jumper and dynamic-braking configuration.

For replacement applications, these configuration differences should not be ignored.

---

43. Advantages for Industrial Automation

The drive’s embedded EtherNet/IP capability makes it suitable for networked automation environments.

A centralized controller can communicate with the drive while the drive performs the local motor-control function.

This can reduce the amount of discrete wiring required for some applications and can make operating information easier to access.

In larger plants, networked drives can also help standardize the control architecture across different motor-driven machines.

---

44. Advantages for Process Monitoring

The drive can provide operating information that can be useful for process monitoring.

Depending on the control architecture, information such as motor speed, current, drive status, and fault information can be incorporated into an operator interface or supervisory system.

This makes it easier for operators and maintenance personnel to understand the operating condition of the motor system.

---

45. Advantages for Equipment Replacement

The PowerFlex 755 family includes multiple current and voltage configurations.

This provides a structured way to identify a replacement model when the motor requirements change.

For example, a plant using the 20G1ANF020JN0NNNNN may also need smaller or larger 690 VAC drives for other motors.

The common product-family architecture can make technical comparison easier.

However, the complete catalog number still needs to be checked carefully before replacement.

---

46. Advantages for Spare-Parts Planning

Industrial plants often maintain spare drives for critical production equipment.

A spare for the 20G1ANF020JN0NNNNN should be checked against:

• Voltage class
• Output current
• Normal Duty rating
• Heavy Duty rating
• Frame size
• Filtering
• CM jumper configuration
• Dynamic-braking configuration
• Communication requirements
• Physical dimensions
• Motor requirements

Maintaining this information can reduce the risk of installing a drive with a similar appearance but a different electrical configuration.

---

47. Physical Installation Summary

Physical Characteristic	Specification
Model	20G1ANF020JN0NNNNN
Frame	6
Cooling	Forced Air
Enclosure	IP20/IP00
Construction	Open Type
Approx. Height	665.5 mm
Approx. Width	308.0 mm
Approx. Depth	346.4 mm
Approx. Weight	38.6 kg
Cabinet Installation	Recommended
Airflow	Required
Maintenance Clearance	Required
Power Cable Access	Required
Communication Cable Access	Required

The approximately 38.6 kg mass should be considered when handling and mounting the drive.

A suitable mounting structure should be used, particularly when the drive is installed in a larger cabinet or control enclosure.

---

48. Electrical Installation Summary

Electrical Characteristic	Specification
Model	20G1ANF020JN0NNNNN
Supply Voltage	690 VAC
Phase	Three-phase
Normal Duty Current	20 A
Normal Duty Power	15 kW
Heavy Duty Current	15 A
Heavy Duty Power	11 kW
Input Type	AC Input with Precharge
External DC Terminals	No
EMC Filter	Yes
CM Jumper	Installed
Dynamic-Braking Transistor	None
Communication	Embedded EtherNet/IP
Cooling	Forced Air

---

49. Product Advantages at a Glance

Advantage	Description
690 VAC Operation	Designed for higher-voltage industrial three-phase motor systems
20 A Output	Provides increased current capacity within the 690 VAC range
15 kW Normal Duty	Suitable for medium-power industrial motor applications
11 kW Heavy Duty	Provides a Heavy Duty operating point for demanding loads
Frame 6	Industrial mechanical platform
Forced-Air Cooling	Suitable thermal-management architecture for the drive class
Embedded EtherNet/IP	Supports networked automation integration
Filtered Configuration	Provides a defined EMC filtering configuration
CM Jumper Installed	Factory-defined common-mode configuration
No Internal DB Transistor	Important for applications where external braking arrangements may be evaluated
AC Precharge	Controlled input power architecture
Broad Applications	Pumps, fans, conveyors, compressors, mixers and process equipment

---

50. Final Technical Specification

Category	Detailed Specification
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	AC Variable Frequency Drive
Exact Model	20G1ANF020JN0NNNNN
Voltage	690 VAC
Phase	Three-phase
Normal Duty Current	20 A
Normal Duty Power	15 kW
Normal Duty 1-Minute Current	22 A
Normal Duty 3-Second Current	30 A
Heavy Duty Current	15 A
Heavy Duty Power	11 kW
Heavy Duty 1-Minute Current	22.5 A
Heavy Duty 3-Second Current	30 A
Frame Size	6
Cooling	Forced Air
Enclosure	IP20/IP00 Open Type
Input	AC Input with Precharge
External DC Terminals	None
EMC Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	No Internal Dynamic-Braking Transistor
Communication	Embedded EtherNet/IP
HIM	Blank / No HIM
Approx. Height	665.5 mm
Approx. Width	308.0 mm
Approx. Depth	346.4 mm
Approx. Weight	38.6 kg
Typical Applications	Pumps, Fans, Blowers, Conveyors, Compressors, Mixers, Process Machinery
Installation	Industrial Electrical Cabinet / Suitable Enclosure

---

51. Final Product Description

The Allen-Bradley 20G1ANF020JN0NNNNN PowerFlex 755 AC Drive is a 690 VAC three-phase industrial variable-frequency drive designed for medium-power motor-control applications.

Its 20 A Normal Duty output and 15 kW Normal Duty rating provide a useful solution for industrial motors operating under normal load conditions.

For applications requiring a more demanding duty profile, the drive provides a 15 A Heavy Duty rating and 11 kW Heavy Duty power rating.

The Frame 6 mechanical platform uses forced-air cooling and has approximate dimensions of 665.5 × 308.0 × 346.4 mm, with an approximate weight of 38.6 kg.

The drive is configured with AC input and precharge, without external DC terminals. It uses a filtered configuration with the CM jumper installed and does not contain an internal dynamic-braking transistor.

The embedded EtherNet/IP capability makes the drive suitable for integration into industrial automation systems where motor commands, status information, operating data, and diagnostics need to be exchanged through an industrial Ethernet network.

In practical applications, the model can be used for pumps, fans, blowers, conveyors, compressors, mixers, agitators, material-handling systems, process machinery, and other industrial equipment that requires controlled AC motor speed.

The 20G1ANF020JN0NNNNN also occupies an important position within the 690 VAC PowerFlex 755 selection range. The nearby 12 A, 15 A, 23 A, and 30 A models provide convenient alternatives when motor current requirements change.

When selecting this model, the most important considerations are the actual motor nameplate current, motor voltage, Normal Duty or Heavy Duty requirements, acceleration and deceleration characteristics, braking requirements, environmental conditions, cabinet dimensions, cooling requirements, and communication architecture.

For replacement applications, the complete catalog number 20G1ANF020JN0NNNNN should be retained because similar-looking PowerFlex 755 drives can have different electrical and configuration characteristics.

Overall, the 20G1ANF020JN0NNNNN is a substantial industrial AC drive designed around a 690 VAC three-phase system, 20 A Normal Duty output, 15 kW Normal Duty capacity, 11 kW Heavy Duty capability, Frame 6 construction, forced-air cooling, and integrated industrial Ethernet communication.