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Allen-Bradley 20G1ANF012JN0NNNNN PowerFlex 755 AC Drive

1. Product Overview

The 20G1ANF012JN0NNNNN is an industrial AC variable-frequency drive from the PowerFlex 755 series.

It is designed for three-phase AC motor control in industrial systems where adjustable speed, controlled acceleration and deceleration, network communication, motor protection, and flexible operating control are required.

This model belongs to the 690 VAC PowerFlex 755 range and has a 12 A Normal Duty output rating. Its Normal Duty power rating is 7.5 kW, while its Heavy Duty rating is 5.5 kW.

The drive uses a Frame 6 mechanical configuration and an air-cooled construction. It is an open-type drive intended for installation inside a suitable electrical cabinet or enclosure.

One of the most important characteristics of this particular catalog number is its configuration. The model includes an EMC filter, has the common-mode capacitor jumper installed, and does not include the internal dynamic-braking transistor specified by the corresponding JA0 configuration.

This distinction is important when selecting a replacement. The 20G1ANF012JN0NNNNN and 20G1ANF012JA0NNNNN have the same basic voltage, current, power, and frame ratings, but their dynamic-braking configurations are different.

The drive also incorporates embedded EtherNet/IP communication, AC input with precharge, no external DC terminals, and a blank/no-HIM configuration.

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2. Brand and Product Series

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	Industrial AC Variable Frequency Drive
Voltage Class	690 VAC
Phase	Three-phase
Normal Duty Current	12 A
Normal Duty Power	7.5 kW
Heavy Duty Current	9 A
Heavy Duty Power	5.5 kW
Frame Size	Frame 6
Cooling	Air cooled / forced air
Enclosure	IP20/IP00, Open Type
Input	AC input with precharge
External DC Terminals	None
EMC Filter	Included
CM Capacitor Jumper	Installed
Dynamic Braking	No internal DB transistor
Communication	Embedded EtherNet/IP
HIM	Blank / no HIM
Approx. Dimensions	665.5 × 308.0 × 346.4 mm
Approx. Weight	38.6 kg

The PowerFlex 755 series is intended for industrial motor applications that require more functionality and flexibility than a basic compact variable-frequency drive.

It can be incorporated into automated production equipment, process machinery, pumps, fans, conveyors, compressors, mixers, material-handling equipment, and many other motor-driven systems.

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3. Complete Model Number

The complete catalog number is:

20G1ANF012JN0NNNNN

The full catalog number should be retained when ordering a replacement or preparing a technical specification because different suffixes can indicate meaningful configuration differences.

In particular, the difference between JA0 and JN0 is important in this family. The J configuration identifies the common-mode capacitor jumper as installed, while the N portion associated with the configuration indicates the absence of the internal dynamic-braking transistor.

Item	Specification
Model Number	20G1ANF012JN0NNNNN
Product Series	PowerFlex 755
Voltage	690 VAC
Phase	3-phase
Normal Duty Current	12 A
Heavy Duty Current	9 A
Normal Duty Power	7.5 kW
Heavy Duty Power	5.5 kW
Normal Duty HP Class	Approx. 10 HP
Heavy Duty HP Class	Approx. 7.5 HP
Frame	Frame 6
Cooling	Air cooled
Input	AC input with precharge
External DC Terminals	None
EMC Filter	Yes
CM Jumper	Installed
Internal DB Transistor	No
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

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4. Main Electrical Parameters

The 20G1ANF012JN0NNNNN is designed for a 690 VAC three-phase industrial electrical system.

Its 12 A Normal Duty rating corresponds to a 7.5 kW Normal Duty motor class, while the Heavy Duty rating is 9 A and 5.5 kW.

Electrical Parameter	Specification
Model	20G1ANF012JN0NNNNN
Input Voltage	690 VAC
Input Phase	3-phase
Normal Duty Continuous Current	12 A
Normal Duty 1-Minute Current	13.2 A
Normal Duty 3-Second Current	18 A
Normal Duty Power	7.5 kW
Heavy Duty Continuous Current	9 A
Heavy Duty 1-Minute Current	13.5 A
Heavy Duty 3-Second Current	18 A
Heavy Duty Power	5.5 kW
Approx. Normal Duty HP	10 HP class
Approx. Heavy Duty HP	7.5 HP class
Frame	Frame 6
Cooling	Air cooled
Input Configuration	AC input with precharge
EMC Filter	Included
CM Jumper	Installed
Internal Dynamic-Braking Transistor	Not included
Communication	Embedded EtherNet/IP
Approx. Dimensions	665.5 × 308.0 × 346.4 mm
Approx. Weight	38.6 kg

The overload figures are useful when evaluating applications with short periods of increased torque demand.

The drive can therefore be applied to equipment where acceleration or transient loading requires more than the continuous operating current, provided the complete load profile remains within the applicable drive rating.

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5. Normal Duty and Heavy Duty Ratings

The drive has separate Normal Duty and Heavy Duty ratings.

This distinction is important because industrial machines do not all impose the same electrical and mechanical stress on a motor.

Duty Rating	Continuous Current	1-Minute Current	3-Second Current	Power Rating
Normal Duty	12 A	13.2 A	18 A	7.5 kW
Heavy Duty	9 A	13.5 A	18 A	5.5 kW

A pump or fan with a relatively stable load can often be evaluated using the Normal Duty rating.

A conveyor, mixer, or other machine with more demanding starting and acceleration requirements may need to be evaluated using the Heavy Duty rating.

For that reason, motor selection should be based on the actual motor current and mechanical load profile rather than horsepower alone.

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6. 690 VAC Voltage Class

The 690 VAC rating is one of the defining characteristics of this model.

Industrial facilities frequently use higher-voltage motor systems for medium and larger motor applications.

A higher motor voltage can allow the required motor power to be transmitted with less current than would be required at a lower voltage.

The 690 VAC PowerFlex 755 range is therefore suitable for industrial installations where the motor, switchgear, transformers, and distribution system are designed around this voltage class.

Typical applications include:

• Industrial pumps
• Fans and blowers
• Compressors
• Conveyors
• Material-handling systems
• Process machinery
• Production equipment
• Utility equipment

The motor’s actual voltage rating must always be compatible with the drive and the electrical system.

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7. Frame 6 Mechanical Design

The 20G1ANF012JN0NNNNN uses a Frame 6 mechanical configuration.

Frame 6 provides a relatively substantial industrial package while remaining considerably smaller than the high-current Frame 7 configurations used for larger motors.

Mechanical Parameter	Specification
Model	20G1ANF012JN0NNNNN
Frame	Frame 6
Approx. Height	665.5 mm
Approx. Width	308.0 mm
Approx. Depth	346.4 mm
Approx. Weight	38.6 kg
Cooling	Air cooled / forced air
Enclosure	IP20/IP00
Enclosure Type	Open Type
Installation	Electrical cabinet / enclosure
Mounting Orientation	Vertical industrial installation
Cabinet Requirement	Suitable enclosure required
Service Consideration	Adequate access for wiring and maintenance

The approximate dimensions should be considered during cabinet planning.

The 38.6 kg approximate weight should also be considered when designing the mounting structure.

The finished cabinet normally requires additional space beyond the drive itself for incoming power connections, motor wiring, network wiring, grounding, protection devices, terminal blocks, ventilation, and maintenance access.

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8. Product Introduction

The 20G1ANF012JN0NNNNN is a high-voltage industrial variable-frequency drive designed to control three-phase AC motors.

Its primary function is to convert fixed-frequency electrical power into a controlled variable-frequency output that can regulate motor speed.

This provides significantly more flexibility than operating a motor only through a fixed-frequency starter.

A production machine may require different motor speeds at different stages of operation.

A pump may need reduced speed when process demand falls.

A fan may need lower speed during periods of reduced airflow demand.

A conveyor may need slow-speed operation during loading and higher-speed operation during normal production.

A variable-frequency drive provides the electrical control required for these operating conditions.

The PowerFlex 755 platform also provides communication and diagnostic functions, allowing the drive to be incorporated into a larger industrial automation system.

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9. Embedded EtherNet/IP

The drive includes embedded EtherNet/IP communication.

This allows it to participate in a compatible industrial control network without requiring a separate basic communication adapter for the embedded network function.

The drive can exchange operating information with a control system, including functions such as:

• Start and stop commands
• Speed reference
• Drive status
• Operating state
• Fault information
• Diagnostic information
• Process-related values
• Control commands

In a production facility containing multiple motor drives, network communication can simplify centralized monitoring and coordination.

The drive can become part of a larger system rather than operating as an isolated motor controller.

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10. EMC Filter Configuration

The model includes an EMC filter.

Variable-frequency drives use high-frequency switching to generate the desired motor waveform.

This switching process can produce electrical disturbances that may travel through power and control wiring.

An EMC filter helps address conducted electromagnetic interference within a properly designed installation.

Actual electromagnetic performance depends on the complete installation.

Important factors include:

• Motor cable length
• Cable shielding
• Grounding
• Cabinet construction
• Cable routing
• Control wiring
• Nearby instrumentation
• Other electronic equipment

Therefore, the integrated filter should be considered as one part of the overall EMC design.

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11. CM Jumper Installed

The 20G1ANF012JN0NNNNN uses the CM jumper installed configuration.

The common-mode capacitor configuration affects the electrical relationship between the drive, grounding system, and motor system.

This can become relevant in installations where grounding arrangements, EMC requirements, or electrical-system characteristics need to be carefully considered.

It is also important when replacing an existing drive.

A model with the same voltage and current rating but a different CM-jumper configuration may not be an electrically identical replacement.

The complete catalog number should therefore be checked before a replacement is selected.

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12. No Internal Dynamic-Braking Transistor

A major difference between the JN0 and JA0 configurations is the dynamic-braking arrangement.

The 20G1ANF012JN0NNNNN does not include the internal dynamic-braking transistor.

This is important for applications where the motor has high inertia or where rapid deceleration is required.

The absence of the internal braking transistor means that the braking architecture must be evaluated separately if dynamic braking is required.

For applications with relatively low inertia and conventional deceleration, this configuration may be entirely appropriate.

For high-inertia machinery requiring frequent rapid stopping, the braking requirements should be evaluated before selecting the model.

This is one of the most important practical differences between the closely related:

20G1ANF012JA0NNNNN

and

20G1ANF012JN0NNNNN

The two models share the same basic 690 VAC, 12 A, 7.5 kW Normal Duty and Frame 6 characteristics, but their braking configurations are different.

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13. AC Input with Precharge

The drive uses an AC input arrangement with precharge.

Precharge is used to manage the initial charging of the drive’s DC-link capacitors when the drive is energized.

This is particularly important for a high-voltage electronic power-conversion system because uncontrolled capacitor charging can create excessive inrush current.

The precharge arrangement therefore forms an important part of the drive’s power-input architecture.

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14. No External DC Terminals

The specified configuration does not provide external DC terminals.

This should be considered when comparing the drive with other architectures involving shared DC buses or external DC connections.

For conventional AC-fed motor applications, the primary power interface is the three-phase AC input.

System designers should therefore work from the actual catalog configuration rather than assuming that all PowerFlex 755 units have identical external power connections.

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15. Pump Applications

Pumping systems are one of the most suitable application areas for variable-frequency drives.

The 20G1ANF012JN0NNNNN can be used in appropriate industrial pumping systems where the motor’s electrical characteristics match the drive rating.

Potential applications include:

• Process-water pumps
• Cooling-water circulation
• Utility pumps
• Industrial fluid transfer
• Water-treatment equipment
• Circulation systems
• Process pumps

A variable-frequency drive allows the pump motor speed to change according to process requirements.

For example, when the required flow decreases, the motor speed can be reduced instead of keeping the motor at full speed and controlling the process entirely through mechanical restriction.

The actual energy performance depends on the pump curve, piping system, operating point, and control strategy.

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16. Fan and Blower Applications

Fans and blowers frequently operate under changing airflow requirements.

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

This can be useful in:

• Industrial ventilation
• Exhaust systems
• Cooling equipment
• Air-handling systems
• Process ventilation
• Combustion-air systems
• Industrial blowers

The drive can also provide controlled acceleration, which can reduce sudden mechanical stress on the motor, coupling, fan, and associated equipment.

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17. Conveyor Applications

Conveyors can have more demanding mechanical characteristics than simple centrifugal fan or pump loads.

A conveyor may need to start while carrying material, accelerate gradually, operate at several speeds, and stop repeatedly.

The PowerFlex 755 drive can provide controlled acceleration and adjustable speed.

Potential applications include:

• Manufacturing conveyors
• Packaging lines
• Material-transfer systems
• Assembly equipment
• Bulk-material handling
• Warehouse conveyors

The JN0 configuration does not include the internal dynamic-braking transistor, so applications requiring aggressive or frequent braking should be evaluated carefully.

If rapid deceleration is a key requirement, a braking-capable configuration may need to be considered instead.

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18. Compressor Applications

Compressors can also benefit from variable-speed control.

The motor can be accelerated in a controlled manner, and the operating speed can be adjusted where the compressor design allows variable-speed operation.

Possible applications include:

• Industrial air systems
• Process compressors
• Utility compressors
• Refrigeration-related machinery
• Gas-handling equipment

Compressor applications require careful consideration of minimum operating speed, lubrication, cooling, pressure conditions, mechanical resonance, and the compressor manufacturer’s operating envelope.

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19. Mixer and Agitator Applications

Mixers and agitators can require significant starting torque.

The load can also change considerably depending on the material being processed.

The drive can provide controlled acceleration and adjustable operating speed.

Potential applications include:

• Chemical mixing
• Water treatment
• Industrial blending
• Process agitation
• Manufacturing processes
• Material mixing

For applications with high starting torque or frequent overload conditions, the Heavy Duty rating should be evaluated.

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20. Material-Handling Applications

Material-handling machinery often requires coordinated control of multiple motors.

The embedded EtherNet/IP capability can allow the drive to exchange information with a larger automation system.

This can help coordinate motor operation with other machines.

For example, a conveyor may be commanded to start only after another process has reached a specified operating state.

Fault information can also be communicated to the control system, allowing the machine sequence to respond appropriately.

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21. Main Product Advantages

21.1 690 VAC Industrial Operation

The 690 VAC rating makes this drive suitable for industrial motor systems designed around higher-voltage three-phase power.

This makes it particularly relevant to plants and machinery using 690 VAC motors.

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21.2 7.5 kW Normal Duty Rating

The 7.5 kW Normal Duty rating provides a useful capacity for industrial motors in this power class.

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

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21.3 5.5 kW Heavy Duty Rating

The Heavy Duty rating provides a lower continuous power rating because Heavy Duty applications place greater thermal and overload demands on the drive.

This makes it important to evaluate the machine’s actual load profile.

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21.4 Frame 6 Construction

The Frame 6 package offers substantial industrial capability without requiring the larger physical size associated with the highest-current Frame 7 drives.

The approximate dimensions of 665.5 × 308.0 × 346.4 mm provide a practical basis for cabinet planning.

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21.5 Embedded EtherNet/IP

The integrated communication capability makes the drive suitable for networked industrial automation systems.

It can exchange control, status, and diagnostic information with a compatible automation architecture.

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21.6 EMC Filtering

The integrated filter helps support EMC performance in an appropriately engineered installation.

This can be particularly useful in environments containing sensitive instrumentation and electronic control equipment.

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21.7 No Internal DB Transistor

For applications that do not require aggressive dynamic braking, the JN0 configuration avoids selecting a drive with an internal braking transistor.

This can make it a suitable configuration for applications where normal controlled deceleration is sufficient.

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21.8 Flexible Industrial Application

The drive can be applied to a wide range of machinery.

Its combination of variable-speed control, network communication, high-voltage operation, filtering, and industrial construction makes it useful across many types of equipment.

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22. Five Closely Related PowerFlex 755 Models

The following models are useful for comparing nearby 690 VAC PowerFlex 755 configurations.

Model	Voltage	ND Current	ND Power	HD Current	HD Power	Frame	CM Jumper	Internal DB	Approx. Dimensions	Approx. Weight
20G1ANF012JN0NNNNN	690 VAC	12 A	7.5 kW	9 A	5.5 kW	6	Installed	No	665.5 × 308.0 × 346.4 mm	38.6 kg
20G1ANF015JN0NNNNN	690 VAC	15 A	11 kW	12 A	7.5 kW	6	Installed	No	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF020JN0NNNNN	690 VAC	20 A	15 kW	15 A	11 kW	6	Installed	No	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF023JN0NNNNN	690 VAC	23 A	18.5 kW	20 A	15 kW	6	Installed	No	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF030JN0NNNNN	690 VAC	30 A	22 kW	23 A	18.5 kW	6	Installed	No	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg

These models are useful when the motor capacity changes but the overall 690 VAC PowerFlex 755 architecture remains similar.

The current and power ratings should always be matched against the actual motor nameplate and application duty.

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23. Five Closely Related Configuration Models

For replacement purposes, configuration comparisons are particularly useful.

Model	Voltage	Current	ND / HD Power	EMC Filter	CM Jumper	Internal DB Transistor	Frame	Approx. Dimensions	Approx. Weight
20G1ANF012AA0NNNNN	690 VAC	12 A	7.5 / 5.5 kW	Yes	Removed	Yes	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF012AN0NNNNN	690 VAC	12 A	7.5 / 5.5 kW	Yes	Removed	No	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF012JA0NNNNN	690 VAC	12 A	7.5 / 5.5 kW	Yes	Installed	Yes	6	665.5 × 308.0 × 346.4 mm	38.6 kg
20G1ANF012JN0NNNNN	690 VAC	12 A	7.5 / 5.5 kW	Yes	Installed	No	6	665.5 × 308.0 × 346.4 mm	38.6 kg
20G1ANF015JN0NNNNN	690 VAC	15 A	11 / 7.5 kW	Yes	Installed	No	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg

This table illustrates why the complete catalog number matters.

The 20G1ANF012JN0NNNNN is not simply another name for the 20G1ANF012JA0NNNNN.

Their primary voltage and current ratings are the same, but the internal braking configuration differs.

Likewise, the A and J configurations differ in their CM-jumper arrangement.

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24. Five Related 690 VAC Models for Capacity Selection

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	665.5 × 308.0 × 346.4 mm	38.6 kg
20G1ANF034JN0NNNNN	690 VAC	34 A	30 kW	30 A	22 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF061JN0NNNNN	690 VAC	61 A	55 kW	50 A	45 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF119JN0NNNNN	690 VAC	119 A	110 kW	98 A	90 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF212JN0NNNNN	690 VAC	212 A	200 kW	171 A	160 kW	7	Approx. 881.5 × 430.0 × 349.6 mm	Approx. 72.6–108.9 kg

These models demonstrate the broader capacity range available within the 690 VAC PowerFlex 755 family.

The 12 A model is a relatively compact Frame 6 configuration, while the 212 A model moves into Frame 7.

The physical size and weight should therefore be considered alongside the electrical rating when designing a cabinet.

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25. Five Same-Brand Popular Models

The following models represent other commonly encountered industrial drives from the same brand and provide alternatives for different motor sizes and voltage ranges.

Model	Series	Voltage Class	Current / Power Class	Typical Application	Approx. Dimensions	Approx. Weight
25B-D017N104	PowerFlex 525	380–480 VAC	17 A / approx. 10 HP	Compact machinery	Approx. 130 × 260 × 212 mm	Approx. 3.0 kg
25B-D024N114	PowerFlex 525	380–480 VAC	24 A / approx. 15 HP	General machine control	Approx. 130 × 260 × 212 mm	Approx. 3.2 kg
20F11ND034JA0NNNNN	PowerFlex 753	480 VAC class	34 A / approx. 25 HP class	Industrial machinery	Approx. 350 × 170 × 200 mm	Approx. 10 kg
20G1AND125JA0NNNNN	PowerFlex 755	480 VAC	125 A / 100 HP ND	Large industrial motors	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANE125JA0NNNNN	PowerFlex 755	600 VAC	125 A / 125 HP ND	Higher-voltage industrial motors	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg

The PowerFlex 525 models are much smaller and are generally used for smaller machine applications.

The PowerFlex 753 provides a different industrial drive platform for applications requiring higher power and more advanced functionality.

The PowerFlex 755 models are more closely related to the requested model and are useful when larger motor capacity or a different voltage class is required.

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26. Comparison With the JA0 Configuration

The most important closely related model is the 20G1ANF012JA0NNNNN.

Both models share the following basic characteristics:

• 690 VAC
• Three-phase
• 12 A Normal Duty
• 7.5 kW Normal Duty
• 9 A Heavy Duty
• 5.5 kW Heavy Duty
• Frame 6
• EMC filter
• CM jumper installed
• Embedded EtherNet/IP

However, the dynamic-braking configuration differs.

Parameter	20G1ANF012JN0NNNNN	20G1ANF012JA0NNNNN
Voltage	690 VAC	690 VAC
Normal Duty Current	12 A	12 A
Normal Duty Power	7.5 kW	7.5 kW
Heavy Duty Current	9 A	9 A
Heavy Duty Power	5.5 kW	5.5 kW
Frame	6	6
EMC Filter	Yes	Yes
CM Jumper	Installed	Installed
Internal DB Transistor	No	Yes
Approx. Dimensions	665.5 × 308.0 × 346.4 mm	665.5 × 308.0 × 346.4 mm
Approx. Weight	38.6 kg	38.6 kg

This distinction is particularly important when the drive is being used in machinery requiring rapid deceleration.

If dynamic braking is not needed, the JN0 configuration may be appropriate.

If an application requires an internal dynamic-braking transistor, the JA0 configuration should be considered instead.

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27. Pump System Advantages

The drive provides adjustable motor speed for pump systems.

This allows the motor to respond to changes in process demand.

A pump operating in a variable-demand system may not need to operate at full speed continuously.

The ability to reduce speed can improve process flexibility and may reduce energy consumption in suitable variable-torque applications.

Typical applications include:

• Cooling-water systems
• Process-water systems
• Industrial circulation
• Water treatment
• Fluid-transfer systems
• Utility pumping

The complete hydraulic system should always be considered when evaluating the benefits of variable-speed operation.

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28. Fan and Blower Advantages

Fans and blowers often operate under changing airflow conditions.

Variable-speed control allows the motor speed to be adjusted according to the required airflow.

This can be useful in:

• Industrial ventilation
• Exhaust systems
• Cooling systems
• Air-handling equipment
• Process ventilation
• Combustion-air systems

The drive can also provide controlled acceleration, helping reduce sudden mechanical loading during startup.

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29. Conveyor Advantages

Conveyor systems can benefit from controlled acceleration.

A loaded conveyor may require a gradual increase in motor torque rather than an abrupt transition from zero speed to full speed.

The drive can provide an adjustable acceleration ramp.

This can reduce mechanical shock and improve coordination with other equipment.

For stopping, however, the JN0 configuration requires particular attention because it does not contain the internal dynamic-braking transistor.

Where high-inertia loads require rapid stopping, the braking arrangement should be evaluated separately.

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30. Compressor Advantages

Compressors can benefit from controlled motor startup and variable-speed operation where the compressor is designed for it.

The drive can provide adjustable frequency and controlled acceleration.

This can help the motor transition from stopped to operating speed in a controlled manner.

Compressor-specific requirements should still be respected, especially minimum speed, lubrication, pressure, cooling, and mechanical resonance.

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31. Industrial Automation Advantages

The embedded EtherNet/IP function makes the drive suitable for integration into a networked control environment.

A central controller can potentially monitor multiple drives and coordinate their operation.

This is useful for production lines where one motor depends on the operating state of another.

For example, a material-handling conveyor may need to start only when an upstream machine has reached a certain state.

Communication can also make fault diagnosis easier by making drive status and diagnostic information available to the wider automation system.

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32. Thermal Management

The drive is air cooled and therefore requires adequate airflow.

The cabinet design should account for:

• Ambient temperature
• Internal cabinet temperature
• Ventilation
• Cooling airflow
• Dust accumulation
• Fan condition
• Heat generated by other equipment

A cabinet containing multiple drives can have a significant combined heat load.

The drive’s physical dimensions should therefore not be the only consideration when designing the enclosure.

Thermal capacity and airflow must also be considered.

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33. Cabinet Installation

Because the drive is an open-type unit, it is normally installed inside a suitable electrical enclosure.

The approximate dimensions are:

665.5 mm × 308.0 mm × 346.4 mm

The approximate weight is:

38.6 kg

Additional space is needed for:

• Incoming power wiring
• Motor cables
• Grounding conductors
• Network cables
• Control wiring
• Protection equipment
• Terminal blocks
• Ventilation
• Maintenance access

The cabinet should therefore be larger than the drive itself.

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34. Motor Selection

Motor selection should be based on actual electrical and mechanical requirements.

Important parameters include:

• Rated motor voltage
• Rated motor current
• Motor power
• Rated frequency
• Rated speed
• Starting torque
• Continuous torque
• Overload requirements
• Operating speed range
• Acceleration time
• Deceleration time
• Motor cooling
• Mechanical inertia

The drive’s 12 A Normal Duty rating should be compared with the actual motor current.

For Heavy Duty operation, the 9 A rating should be considered.

This is more reliable than selecting the drive solely by the motor’s nominal kW rating.

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35. Dynamic-Braking Considerations

The absence of an internal dynamic-braking transistor is a defining feature of the JN0 configuration.

For a machine with ordinary deceleration requirements, this may not present a problem.

For a machine with significant stored kinetic energy, the situation is different.

Examples include:

• Large rotating fans
• High-speed rollers
• Centrifugal equipment
• High-inertia conveyors
• Machinery requiring frequent rapid stopping

In these applications, the braking system should be evaluated carefully.

If the application requires a drive with an integrated dynamic-braking transistor, a corresponding JA0 configuration may be more appropriate to evaluate.

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36. Maintenance Considerations

Regular inspection can help maintain reliable operation.

Important maintenance areas include:

• Cooling fans
• Airflow paths
• Electrical connections
• Grounding connections
• Motor cables
• Network connections
• Cabinet cleanliness
• Fault history
• Environmental conditions

Dust and restricted airflow can increase internal temperatures.

The maintenance interval should therefore reflect the actual operating environment.

A clean, temperature-controlled electrical room will impose different maintenance demands from a dusty manufacturing environment.

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37. Troubleshooting Considerations

Troubleshooting should normally begin by separating the problem into several areas.

Power System

Check the three-phase incoming supply, protection devices, wiring, and grounding.

Motor System

Check motor wiring, motor current, nameplate data, insulation, mechanical load, and motor condition.

Drive System

Check drive status, fault history, temperature, cooling, and parameter configuration.

Communication System

Check EtherNet/IP connections, network status, controller communication, and configuration.

Mechanical System

Check bearings, couplings, belts, gearboxes, conveyor loading, pump conditions, or fan loading.

Deceleration System

If the machine is experiencing overvoltage during stopping, the deceleration time and braking requirements should be evaluated.

Because this model does not contain an internal dynamic-braking transistor, the braking architecture should be considered separately where high-energy deceleration is involved.

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38. Why the Exact Catalog Number Matters

The complete catalog number identifies more than the basic horsepower.

For example:

20G1ANF012JN0NNNNN

and

20G1ANF012JA0NNNNN

both represent 690 VAC, 12 A, Frame 6 PowerFlex 755 drives with the same principal Normal Duty and Heavy Duty power ratings.

However, their dynamic-braking configurations are different.

Similarly, the A and J portions identify different CM-jumper configurations.

This means that a replacement should not be selected simply because the voltage, current, and horsepower appear identical.

The complete catalog number should be compared before the replacement is installed.

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39. Product Selection Checklist

Selection Item	Requirement
Model	20G1ANF012JN0NNNNN
Series	PowerFlex 755
Voltage	690 VAC
Phase	Three-phase
Normal Duty Current	12 A
Normal Duty Power	7.5 kW
Heavy Duty Current	9 A
Heavy Duty Power	5.5 kW
Normal Duty 1-Minute Current	13.2 A
Normal Duty 3-Second Current	18 A
Heavy Duty 1-Minute Current	13.5 A
Heavy Duty 3-Second Current	18 A
Frame	Frame 6
Cooling	Air cooled
EMC Filter	Included
CM Jumper	Installed
Internal DB Transistor	No
Input	AC with precharge
External DC Terminals	None
Communication	Embedded EtherNet/IP
HIM	Blank / no HIM
Enclosure	IP20/IP00 Open Type
Approx. Height	665.5 mm
Approx. Width	308.0 mm
Approx. Depth	346.4 mm
Approx. Weight	38.6 kg
Installation	Suitable electrical enclosure
Braking	External braking arrangement must be evaluated if required

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40. Five Related Models for Motor-Capacity Selection

Model	Voltage	ND Current	ND Power	HD Current	HD Power	Frame	Approx. Dimensions	Approx. Weight
20G1ANF012JN0NNNNN	690 VAC	12 A	7.5 kW	9 A	5.5 kW	6	665.5 × 308.0 × 346.4 mm	38.6 kg
20G1ANF015JN0NNNNN	690 VAC	15 A	11 kW	12 A	7.5 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF020JN0NNNNN	690 VAC	20 A	15 kW	15 A	11 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF023JN0NNNNN	690 VAC	23 A	18.5 kW	20 A	15 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANF030JN0NNNNN	690 VAC	30 A	22 kW	23 A	18.5 kW	6	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg

These models form a useful progression for projects where motor capacity may change while the overall 690 VAC PowerFlex 755 platform remains the same.

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41. Five Same-Brand Popular Models

Model	Series	Voltage Class	Current / Power Class	Application	Approx. Dimensions	Approx. Weight
25B-D017N104	PowerFlex 525	380–480 VAC	17 A / approx. 10 HP	Compact machinery	Approx. 130 × 260 × 212 mm	Approx. 3.0 kg
25B-D024N114	PowerFlex 525	380–480 VAC	24 A / approx. 15 HP	General machine control	Approx. 130 × 260 × 212 mm	Approx. 3.2 kg
20F11ND034JA0NNNNN	PowerFlex 753	480 VAC class	34 A / approx. 25 HP class	Industrial machinery	Approx. 350 × 170 × 200 mm	Approx. 10 kg
20G1AND125JA0NNNNN	PowerFlex 755	480 VAC	125 A / 100 HP ND	Large industrial motors	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg
20G1ANE125JA0NNNNN	PowerFlex 755	600 VAC	125 A / 125 HP ND	High-voltage industrial motors	Approx. 665.5 × 308.0 × 346.4 mm	Approx. 38.6 kg

These five models cover several different application levels.

The PowerFlex 525 models are physically much smaller and are suited to lower-power machine applications.

The PowerFlex 753 is a larger industrial drive platform.

The PowerFlex 755 models are closer to the requested product in terms of industrial application flexibility and communication capability.

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42. Product Advantages by Application

Pumps

The drive provides adjustable motor speed, making it suitable for pump systems with changing flow requirements.

Fans

Variable-speed operation allows the fan motor to respond to changing airflow requirements.

Blowers

The drive can provide controlled acceleration and adjustable operating speed for industrial blower systems.

Conveyors

Controlled acceleration can reduce mechanical shock and provide smoother startup.

Compressors

Variable-speed operation can provide process flexibility where the compressor permits speed control.

Mixers

Controlled acceleration and adjustable speed can help accommodate different process conditions.

Material Handling

Embedded EtherNet/IP communication allows the drive to participate in coordinated machine operation.

General Industrial Machinery

The combination of high-voltage operation, variable-speed control, network communication, filtering, and industrial construction allows the drive to be applied across a wide range of motor-driven machinery.

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43. Overall Product Advantages

The 20G1ANF012JN0NNNNN provides several practical advantages for industrial motor-control systems.

Its 690 VAC three-phase architecture makes it suitable for higher-voltage industrial motor systems.

Its 12 A Normal Duty rating supports motors in the approximately 7.5 kW Normal Duty class.

Its 9 A Heavy Duty rating provides a defined capacity for more demanding load profiles.

The Frame 6 mechanical design offers a substantial industrial package with approximately 665.5 × 308.0 × 346.4 mm dimensions.

The 38.6 kg approximate weight provides a useful basis for cabinet mounting and mechanical-support calculations.

The embedded EtherNet/IP capability allows integration with a compatible industrial control network.

The EMC filter helps manage conducted electromagnetic interference as part of an appropriately designed installation.

The installed CM jumper provides a defined grounding-related configuration.

The absence of an internal dynamic-braking transistor distinguishes this model from the corresponding JA0 version and should be considered carefully when selecting the drive for machinery requiring rapid deceleration.

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44. Final Technical Summary

The 20G1ANF012JN0NNNNN is an Allen-Bradley PowerFlex 755 AC variable-frequency drive designed for 690 VAC three-phase industrial motor applications.

The drive provides a 12 A Normal Duty continuous current rating, with a 7.5 kW Normal Duty rating.

For Heavy Duty operation, the continuous current rating is 9 A, corresponding to approximately 5.5 kW.

Its Normal Duty short-term ratings are approximately 13.2 A for one minute and 18 A for three seconds.

Its Heavy Duty short-term ratings are approximately 13.5 A for one minute and 18 A for three seconds.

The drive uses a Frame 6 mechanical configuration, with approximate dimensions of 665.5 × 308.0 × 346.4 mm and an approximate weight of 38.6 kg.

The configuration includes an EMC filter, an installed CM jumper, AC input with precharge, no external DC terminals, embedded EtherNet/IP, and a blank/no-HIM configuration.

The key configuration difference compared with the JA0 version is that the JN0 model does not include the internal dynamic-braking transistor.

This makes the exact catalog number especially important during replacement and system design.

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45. Final Product Description

The Allen-Bradley 20G1ANF012JN0NNNNN PowerFlex 755 AC Drive is a high-voltage industrial variable-frequency drive designed for flexible control of three-phase AC motors.

With a 690 VAC input class, 12 A Normal Duty rating, 7.5 kW Normal Duty capacity, and 5.5 kW Heavy Duty capacity, it provides a practical solution for a broad range of industrial motor applications.

The drive’s Frame 6 construction, approximately 665.5 × 308.0 × 346.4 mm dimensions, and approximately 38.6 kg weight make it suitable for installation in a properly designed industrial control cabinet.

Its embedded EtherNet/IP capability allows it to participate in networked automation systems, while the EMC filter and installed CM-jumper configuration support the electrical requirements of an appropriately engineered installation.

The most important feature distinguishing this particular model from the closely related JA0 configuration is the absence of the internal dynamic-braking transistor.

For applications such as pumps, fans, blowers, conveyors, compressors, mixers, material-handling equipment, and general process machinery, the drive can provide controlled motor speed, acceleration, and network-based monitoring.

For applications involving high-inertia loads or frequent rapid stopping, the braking requirements should be evaluated carefully because the JN0 configuration does not contain the internal dynamic-braking transistor.

From a practical engineering standpoint, the complete catalog number should always be used when specifying or replacing the drive. The voltage, current, duty rating, frame size, CM-jumper configuration, braking configuration, EMC filtering, communication capability, dimensions, and weight should all be considered together.

The 20G1ANF012JN0NNNNN is therefore best described as a 690 VAC, Frame 6, 12 A PowerFlex 755 industrial AC drive with embedded EtherNet/IP, EMC filtering, installed CM jumper, and no internal dynamic-braking transistor, intended for applications requiring reliable variable-speed control within a higher-voltage industrial motor system.