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Allen-Bradley 20G14NF023JN0NNNNN PowerFlex 755 AC Drive – Technical Specifications, Product Overview, Applications, Advantages, and Related Models

1. Product Overview

The Allen-Bradley 20G14NF023JN0NNNNN is a PowerFlex 755 AC drive designed for industrial motor-control systems that require a high-voltage common-bus architecture, controlled motor speed, reliable torque regulation, and flexible integration into larger automation equipment.

This model is a 23 A, 690 VAC, three-phase PowerFlex 755 drive with an 18.5 kW Normal Duty rating and a 15 kW Heavy Duty rating. It uses a DC-input configuration with precharge and is built as an air-cooled, open-type Frame 6 drive.

The model is configured with filtering and the common-mode capacitor jumper installed. Unlike the corresponding JA configuration, the JN configuration does not include an internal dynamic-braking transistor. This difference is one of the most important points to consider when selecting the model for a replacement or new machine design.

The 20G14NF023JN0NNNNN is therefore best suited to industrial installations where the drive is part of a larger electrical and automation system rather than a simple standalone motor installation.

Its combination of a 23 A current rating, 18.5 kW Normal Duty capacity, 15 kW Heavy Duty capability, 690 VAC voltage class, DC-input architecture, and Frame 6 construction makes it suitable for a broad range of medium-power industrial machinery.

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2. Brand and Series

Parameter	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	AC Drive / Variable Frequency Drive
Catalog Number	20G14NF023JN0NNNNN
Drive Architecture	Common-Bus / DC-Input
Voltage Class	690 VAC, Three Phase
Nominal DC Bus Class	932 VDC
Output Current	23 A
Normal Duty Rating	18.5 kW
Heavy Duty Rating	15 kW
Frame Size	Frame 6
Cooling	Air Cooled
Construction	Open Type
Input Type	DC Input with Precharge
Filtering	Filtered
CM Capacitor Jumper	Installed
Dynamic Braking	None
HIM Configuration	Blank / No HIM
Approx. Dimensions	665.5 × 308 × 346.4 mm H × W × D
Approx. Weight	14.5 kg
Primary Application	Industrial Motor Control

The product is identified as a PowerFlex 755 AC packaged drive. The exact JN configuration specifies filtered operation with the common-mode capacitor jumper installed, DC input with precharge, and no internal dynamic-braking transistor.

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3. Detailed Technical Parameters

Technical Parameter	Specification
Model Number	20G14NF023JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Family	PowerFlex
Product Type	AC Drive
Voltage Rating	690 VAC
Phase	Three Phase
Nominal DC Input Class	932 VDC
Input Type	DC Input with Precharge
Output Current	23 A
Normal Duty Current	23 A
Normal Duty 1-Minute Current	25.3 A
Normal Duty 3-Second Current	34.5 A
Normal Duty Motor Rating	18.5 kW
Heavy Duty Continuous Current	20 A
Heavy Duty 1-Minute Current	30 A
Heavy Duty 3-Second Current	36 A
Heavy Duty Motor Rating	15 kW
Frame Size	Frame 6
Cooling Type	Air Cooled
Enclosure Style	Open Type
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
HIM	Blank / No HIM
Mounting	Cabinet / Panel Integration
Approx. Height	665.5 mm
Approx. Width	308 mm
Approx. Depth	346.4 mm
Approx. Weight	14.5 kg
Typical Use	Industrial Variable-Speed Motor Control

The published common-bus selection data identifies the 23 A model with 23 A Normal Duty continuous output, 25.3 A one-minute capability, 34.5 A three-second capability, and an 18.5 kW Normal Duty rating. The Heavy Duty values are 20 A continuous, 30 A for one minute, 36 A for three seconds, and 15 kW motor rating.

The dimensions and weight above should be regarded as preliminary engineering values for the Frame 6 configuration. For final enclosure fabrication, mounting calculations, or shipment planning, the mechanical documentation for the exact unit should be used.

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4. Understanding the Model Number

The catalog number 20G14NF023JN0NNNNN provides a compact description of the drive configuration.

Model Section	General Description
20G	PowerFlex 755 AC drive family
14	Common-bus / DC-input configuration
NF	690 VAC common-bus family designation
023	23 A current class
J	Filtered configuration with CM capacitor jumper installed
N	No internal dynamic-braking transistor
0	Option position
NNNNN	Additional standard/default option positions

The 023 section identifies the 23 A output-current class.

The JN configuration is especially important because it distinguishes this model from the similar JA configuration.

The J configuration corresponds to the filtering/common-mode capacitor arrangement, while N in the braking position means that the internal dynamic-braking transistor is not installed.

Consequently, two drives with the same voltage, current, power, and frame can still have different functional characteristics if one uses the JA configuration and the other uses JN.

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5. Product Construction

The 20G14NF023JN0NNNNN is a Frame 6, air-cooled, open-type PowerFlex 755 drive.

The open-type construction means that the drive is intended to be incorporated into an appropriate industrial cabinet or control enclosure.

The cabinet becomes part of the overall installation and must provide suitable protection against the surrounding environment.

Cabinet design should take into account temperature, airflow, dust, moisture, conductive contamination, grounding, cable routing, service access, and the heat generated by the drive and nearby equipment.

The approximate Frame 6 envelope is 665.5 mm high, 308 mm wide, and 346.4 mm deep.

This is a substantial industrial drive package, so sufficient clearance should be allowed around the unit rather than designing the cabinet around the bare external dimensions alone.

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6. 690 VAC Three-Phase Operation

The 20G14NF023JN0NNNNN belongs to the 690 VAC three-phase PowerFlex 755 range.

This voltage class is commonly associated with larger industrial motors and equipment where higher motor voltage is useful for medium- and higher-power applications.

At a given power level, increasing the operating voltage can reduce the current required by the motor system.

For industrial installations, this can influence cable sizing, motor selection, power distribution, and overall machine architecture.

The corresponding common-bus selection data places this drive in the 932 VDC nominal input class.

Because the DC-bus voltage is high, the electrical installation requires appropriate engineering controls for isolation, grounding, protection, precharge, discharge, maintenance, and safe servicing.

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7. 23 A Output Capacity

The central electrical rating of the 20G14NF023JN0NNNNN is its 23 A Normal Duty output-current rating.

The published rating gives the model an 18.5 kW Normal Duty motor rating.

For Heavy Duty operation, the continuous current rating is 20 A, corresponding to a 15 kW Heavy Duty motor rating.

Duty Category	Continuous Current	1-Minute Current	3-Second Current	Motor Rating
Normal Duty	23 A	25.3 A	34.5 A	18.5 kW
Heavy Duty	20 A	30 A	36 A	15 kW

This distinction is useful when selecting the drive for an actual machine.

A motor application that normally operates with a relatively stable load may be evaluated under Normal Duty.

A machine with greater starting torque, frequent acceleration, or significant overload requirements may need to be evaluated using the Heavy Duty rating.

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8. Normal Duty Applications

The 18.5 kW Normal Duty rating makes this model suitable for a broad range of medium-power industrial equipment.

Typical examples include conveyors, pumps, fans, blowers, process machinery, material-handling systems, and other continuously operating motor-driven equipment.

Normal Duty applications generally place less severe overload demands on the drive than applications with repeated high-torque acceleration or heavy transient loading.

The actual motor current should always be checked against the drive’s current capability.

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9. Heavy Duty Applications

The 15 kW Heavy Duty rating provides another useful operating point.

Heavy Duty applications can include machinery with higher starting torque, intermittent overload, frequent acceleration, or changing mechanical loads.

Potential examples include mixers, loaded conveyors, processing machinery, and certain high-inertia systems.

The Heavy Duty rating should not simply be interpreted as a universal guarantee that every 15 kW motor can be operated under any severe-duty condition.

Motor nameplate current, acceleration time, overload profile, ambient temperature, speed range, and duty cycle should all be considered.

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10. Dynamic Braking Configuration

One of the most important characteristics of the 20G14NF023JN0NNNNN is the absence of an internal dynamic-braking transistor.

The product configuration specifies Dynamic Braking: None.

This is the principal difference between this model and the corresponding 20G14NF023JA0NNNNN configuration.

Feature	20G14NF023JN0NNNNN	20G14NF023JA0NNNNN
Output Current	23 A	23 A
Normal Duty	18.5 kW	18.5 kW
Heavy Duty	15 kW	15 kW
Frame	6	6
Filtering	Filtered	Filtered
CM Jumper	Installed	Installed
Internal DB Transistor	None	Installed
Cooling	Air Cooled	Air Cooled
Construction	Open Type	Open Type

The JN configuration can therefore be appropriate when the machine does not require an internal braking transistor or when regenerative energy is managed by another part of the system.

However, if a machine requires rapid deceleration or has a high-inertia load, the braking arrangement should be engineered before selecting the drive.

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11. Filtering Configuration

The drive is supplied with a filtered configuration and the common-mode capacitor jumper installed.

This configuration can be useful in industrial electrical systems where conducted electrical noise and common-mode effects need to be managed.

Variable-frequency drives generate switching waveforms as part of their normal operation.

The filter configuration is therefore useful, but proper installation remains equally important.

Grounding, cable routing, motor-cable construction, cabinet layout, and separation of power and sensitive control wiring all influence the final electrical performance of the installation.

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12. DC Input with Precharge

The drive uses a DC input with precharge configuration.

This is an important characteristic of common-bus drive architecture.

The DC link of a drive contains capacitive energy storage.

When the system is initially energized, the precharge function helps control the charging process rather than allowing the DC-link capacitors to experience an uncontrolled initial charging current.

In a multi-drive common-bus system, this becomes especially important because multiple drives can contribute substantial capacitance to the overall DC system.

The power architecture therefore needs to be designed as a complete system, including the DC power source, protection, precharge arrangement, disconnect strategy, bus conductors, grounding, and discharge provisions.

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13. Air-Cooled Design

The 20G14NF023JN0NNNNN uses an air-cooled thermal-management arrangement.

Air cooling is a familiar approach for industrial drive cabinets and can provide a practical solution for medium-power installations.

The cooling system should not be evaluated only by the drive itself.

The complete cabinet thermal environment should be considered.

Important factors include:

• Ambient temperature.
• Internal cabinet temperature.
• Airflow.
• Heat from neighboring components.
• Installation altitude.
• Drive loading.
• Continuous operating current.
• Ventilation arrangement.
• Fan condition.
• Cabinet cleanliness.

A drive operating continuously near its rated current generates substantially more heat than a lightly loaded unit, so cabinet thermal design should reflect the actual operating profile.

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14. Open-Type Enclosure

The open-type configuration provides flexibility for industrial cabinet integration.

Instead of requiring the drive itself to provide complete environmental protection, the system designer can integrate it into a larger control enclosure.

This approach is useful in centralized electrical cabinets where several drives, controllers, disconnects, power components, and control devices are installed together.

The enclosure must provide the environmental protection required by the actual installation.

The drive should not be treated as a standalone outdoor enclosure unless the complete system configuration has been specifically engineered for that environment.

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15. No HIM Configuration

The 20G14NF023JN0NNNNN is configured with a Blank / No HIM arrangement.

This can be useful in automated machinery where the drive is controlled from a centralized machine-control system.

The absence of a factory-mounted HIM also provides greater freedom in cabinet-front design.

For example, a machine builder can decide whether operator commands and drive status should be presented through a centralized HMI or another machine-control interface.

For maintenance, however, there should still be a practical method for accessing drive parameters, alarms, diagnostics, and commissioning information.

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16. Mechanical Parameters

Mechanical Parameter	Specification
Model	20G14NF023JN0NNNNN
Frame Size	6
Construction	Open Type
Cooling	Air Cooled
Approx. Height	665.5 mm
Approx. Width	308 mm
Approx. Depth	346.4 mm
Approx. Weight	14.5 kg
Mounting Orientation	Vertical
Cabinet Integration	Required
Service Access	Required
Thermal Management	Forced-Air / Cabinet Airflow

The dimensions listed above are suitable as preliminary engineering references.

The actual installation should allow additional space for wiring, ventilation, service access, and component clearances.

The approximate 14.5 kg weight is useful for preliminary mounting calculations, but exact product and shipping weights can differ.

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17. Product Advantages

17.1 Strong Medium-Power Rating

With an 18.5 kW Normal Duty rating, the drive occupies a useful position in the medium-power range.

It is large enough for substantial industrial machinery while remaining within the Frame 6 platform.

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17.2 690 VAC Capability

The 690 VAC class allows the drive to work with industrial motor systems designed around this higher voltage level.

This makes it particularly relevant to industrial machinery and plant equipment using 690 VAC motors.

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17.3 Common DC-Bus Architecture

The DC-input configuration is a major advantage when the machine is designed around a common DC bus.

Multiple drives can potentially be incorporated into a coordinated DC power architecture.

This can be particularly useful for large machines with several motor-driven sections.

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17.4 Integrated Precharge

The precharge arrangement supports controlled energization of the DC link.

This is particularly important in high-voltage common-bus systems.

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17.5 Filtered Configuration

The filtered configuration helps address electrical-noise considerations.

This is valuable in complex industrial cabinets where drive power electronics operate alongside control, communication, and instrumentation equipment.

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17.6 Frame 6 Platform

The Frame 6 platform provides a consistent mechanical architecture across several nearby current ratings.

This can make it easier for machine designers to compare different current classes.

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17.7 No Internal Braking Transistor Can Be Useful

The absence of an internal dynamic-braking transistor is not a disadvantage in every application.

Where braking is handled elsewhere in the common-bus system, or where the machine does not require dynamic braking, the JN configuration can be an appropriate choice.

It also allows the designer to treat the braking architecture as a separate engineering decision.

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18. Industrial Applications

18.1 Conveyor Systems

The 20G14NF023JN0NNNNN can be used for medium-power conveyor systems requiring controlled motor speed.

Conveyors may benefit from adjustable acceleration and deceleration, stable speed regulation, and controlled operation under changing material loads.

Where rapid braking is required, the complete braking architecture must be reviewed because this JN model does not contain an internal dynamic-braking transistor.

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18.2 Material Handling Equipment

Material-handling machinery often contains multiple motors operating in a coordinated manner.

A common DC-bus architecture can be particularly attractive in these systems.

The 23 A output class is suitable for many medium-power motor sections, subject to actual motor current and load requirements.

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18.3 Pumps

Industrial pumps can benefit from variable-speed motor operation.

Applications may include process circulation, transfer systems, cooling systems, and other industrial fluid-handling equipment.

Pump selection should be evaluated against the actual motor current and load curve.

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18.4 Fans and Blowers

Fans and blowers are common variable-speed applications.

The motor speed can be adjusted according to airflow demand, process requirements, or system conditions.

For these applications, the Normal Duty rating is often the most relevant rating to evaluate.

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18.5 Mixers

Mixers can require significant torque during startup.

The load can also change as material is added, removed, heated, cooled, or otherwise processed.

The Heavy Duty rating should therefore be considered carefully when using this drive for mixing equipment.

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18.6 Process Machinery

The drive can be considered for process machinery requiring controlled motor speed and torque.

The PowerFlex 755 family is particularly useful where the drive is part of a larger automation architecture rather than operating as an isolated motor controller.

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18.7 Machine Tools

The model can be considered for suitable machine-tool applications where the motor voltage, current, speed range, and duty requirements fall within the drive’s capabilities.

The exact suitability depends on the specific motor and mechanical load.

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18.8 Multi-Drive Production Equipment

This is one of the most relevant application areas.

A common-bus drive architecture can be useful in production machinery containing several coordinated motor drives.

Examples include production lines, processing machinery, material-handling systems, and machines with multiple interconnected motor sections.

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19. Application Suitability Table

Application	Suitability	Main Selection Consideration
Conveyor	Very Good	Motor current and stopping requirements
Material Handling	Very Good	Load variation and acceleration
Pump	Good	Motor current and process speed
Fan	Good	Normal Duty rating
Blower	Good	Continuous operating load
Mixer	Very Good	Starting torque and Heavy Duty requirements
Process Machinery	Very Good	Duty cycle and speed range
Machine Tool	Good	Motor characteristics and control requirements
Multi-Drive Machine	Excellent	Common DC-bus architecture
High-Inertia Load	Requires engineering	Regenerative energy management
Rapid-Deceleration Machine	Requires engineering	External/overall braking arrangement
Centralized DC-Bus System	Excellent	DC power architecture

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20. Five Closely Related Models

The following five models are useful comparison choices within the same common-bus PowerFlex 755 family.

Model	Voltage Class	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame	Dynamic Braking
20G14NF012JN0NNNNN	690 VAC / 932 VDC	12 A	7.5 kW	9 A	5.5 kW	6	None
20G14NF015JN0NNNNN	690 VAC / 932 VDC	15 A	11 kW	12 A	7.5 kW	6	None
20G14NF020JN0NNNNN	690 VAC / 932 VDC	20 A	15 kW	15 A	11 kW	6	None
20G14NF030JN0NNNNN	690 VAC / 932 VDC	30 A	22 kW	23 A	18.5 kW	6	None
20G14NF050JN0NNNNN	690 VAC / 932 VDC	50 A	45 kW	46 A	37 kW	6	None

The common-bus selection table places the 23 A model between the 20 A and 30 A versions, with the 20 A model rated at 15 kW Normal Duty and the 30 A model rated at 22 kW Normal Duty.

This makes the 23 A model a useful intermediate choice when a 20 A drive is close to the motor’s current requirement but the 30 A model would provide considerably more capacity than necessary.

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21. Detailed Comparison of Related Models

Model	Normal Duty	Heavy Duty	Frame	Filtering	CM Jumper	Dynamic Braking	Approx. Dimensions	Approx. Weight
20G14NF012JN0NNNNN	12 A / 7.5 kW	9 A / 5.5 kW	6	Filtered	Installed	None	665.5 × 308 × 346.4 mm	~14.5 kg
20G14NF015JN0NNNNN	15 A / 11 kW	12 A / 7.5 kW	6	Filtered	Installed	None	665.5 × 308 × 346.4 mm	~14.5 kg
20G14NF020JN0NNNNN	20 A / 15 kW	15 A / 11 kW	6	Filtered	Installed	None	665.5 × 308 × 346.4 mm	~14.5 kg
20G14NF023JN0NNNNN	23 A / 18.5 kW	20 A / 15 kW	6	Filtered	Installed	None	665.5 × 308 × 346.4 mm	~14.5 kg
20G14NF030JN0NNNNN	30 A / 22 kW	23 A / 18.5 kW	6	Filtered	Installed	None	665.5 × 308 × 346.4 mm	~14.5 kg

The current and motor-power progression follows the common-bus selection data.

The approximate dimensions and weight are shown as Frame 6 engineering references. They should not be interpreted as guaranteed shipping dimensions or packaged weights.

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22. Five Same-Brand Models for Broader Comparison

The following five Allen-Bradley models provide a broader comparison across related PowerFlex 755 configurations.

Model	Voltage Class	Current	Normal Duty Rating	Heavy Duty Rating	Frame	Input Type	Dynamic Braking
20G14NF015JA0NNNNN	690 VAC	15 A	11 kW	7.5 kW	6	DC Input with Precharge	DB Transistor
20G14NF020JA0NNNNN	690 VAC	20 A	15 kW	11 kW	6	DC Input with Precharge	DB Transistor
20G14NF050JA0NNNNN	690 VAC	50 A	45 kW	37 kW	6	DC Input with Precharge	DB Transistor
20G14FD077JA0NNNNN	480 VAC	77 A	60 HP	50 HP	5	DC Input with Precharge	DB Transistor
20G14FC085JA0NNNNN	400 VAC	85 A	45 kW	37 kW	5	DC Input with Precharge	DB Transistor

These models are useful when the application requires either a different motor-voltage class or a different output-current range.

The 690 VAC models are particularly close to the requested unit, while the 400 VAC and 480 VAC examples demonstrate how the same broader PowerFlex 755 architecture can be applied to different industrial motor systems.

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23. Detailed Mechanical Comparison

Model	Frame	Approx. Height	Approx. Width	Approx. Depth	Approx. Weight
20G14NF015JA0NNNNN	6	665.5 mm	308 mm	346.4 mm	~14.5 kg
20G14NF020JA0NNNNN	6	665.5 mm	308 mm	346.4 mm	~14.5 kg
20G14NF023JN0NNNNN	6	665.5 mm	308 mm	346.4 mm	~14.5 kg
20G14NF050JA0NNNNN	6	665.5 mm	308 mm	346.4 mm	~14.5 kg
20G14FD077JA0NNNNN	5	Different frame configuration	Different	Different	Different

The Frame 6 models share the same general mechanical platform, which can simplify comparison during cabinet design.

The Frame 5 model should be treated as a separate mechanical configuration and should not be assumed to have the same dimensions or weight as the Frame 6 products.

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24. 20G14NF023JN0NNNNN vs. 20G14NF023JA0NNNNN

This is the most important comparison when evaluating the requested model.

Parameter	20G14NF023JN0NNNNN	20G14NF023JA0NNNNN
Brand	Allen-Bradley	Allen-Bradley
Series	PowerFlex 755	PowerFlex 755
Voltage	690 VAC	690 VAC
Nominal DC Bus	932 VDC	932 VDC
Output Current	23 A	23 A
Normal Duty	18.5 kW	18.5 kW
Heavy Duty	15 kW	15 kW
Frame	6	6
Input	DC Input with Precharge	DC Input with Precharge
Filtering	Filtered	Filtered
CM Jumper	Installed	Installed
Dynamic Braking	None	DB Transistor
HIM	Blank / No HIM	Blank / No HIM
Cooling	Air Cooled	Air Cooled
Approx. Dimensions	665.5 × 308 × 346.4 mm	665.5 × 308 × 346.4 mm
Approx. Weight	~14.5 kg	~14.5 kg

The two models are electrically similar in their principal voltage, current, power, and frame ratings.

The major functional difference is the braking configuration.

The JN model does not contain the internal dynamic-braking transistor, while the JA model does.

This difference should be checked carefully during drive replacement.

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25. Choosing Between 20 A, 23 A, and 30 A

The three nearby current classes provide a useful selection range.

Model	Normal Duty Current	Normal Duty Power	Heavy Duty Power	Typical Selection Logic
20G14NF020JN0NNNNN	20 A	15 kW	11 kW	Lower motor-current requirement
20G14NF023JN0NNNNN	23 A	18.5 kW	15 kW	Intermediate capacity
20G14NF030JN0NNNNN	30 A	22 kW	18.5 kW	Higher motor-current requirement

The 23 A model is a useful middle choice.

If the motor current is comfortably below 20 A, the 20 A version may be sufficient.

If the motor current is close to the 20 A limit, the 23 A version can provide additional capacity.

If the motor requires substantially more current, the 30 A version may be more appropriate.

The final selection should be based on actual motor nameplate current and application duty rather than motor kW alone.

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26. Braking Considerations

The absence of an internal braking transistor is an important consideration for the 20G14NF023JN0NNNNN.

For a low-inertia application with gradual stopping, this may present no significant issue.

For a high-inertia load, rapid deceleration can return substantial energy to the DC bus.

Examples include:

• Large rotating machinery.
• High-speed conveyors.
• Rapid-cycle equipment.
• Certain lifting applications.
• Machines with frequent stopping.
• Equipment with high reflected inertia.

In these applications, the complete regenerative and braking strategy should be evaluated before finalizing the drive selection.

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27. Cabinet and Installation Requirements

Because the product is an open-type Frame 6 drive, cabinet design is an important part of the installation.

Installation Parameter	Recommended Consideration
Mounting	Vertical cabinet/panel installation
Frame	6
Height Reference	665.5 mm
Width Reference	308 mm
Depth Reference	346.4 mm
Weight Reference	~14.5 kg
Cooling	Air Cooled
Cabinet Ventilation	Required
Grounding	Appropriate industrial grounding
Power Wiring	Organized high-power routing
Control Wiring	Separate where appropriate
Service Access	Provide adequate working clearance
Environmental Protection	Provided by final enclosure
DC-Bus Safety	High-priority design consideration

The cabinet should not be designed with only the external drive dimensions in mind.

Space should also be reserved for power conductors, control wiring, ventilation, maintenance access, and other components.

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28. Motor Selection Guidelines

The drive should be matched to the motor’s actual electrical characteristics.

The following parameters should be checked:

Motor Parameter	Why It Matters
Motor Voltage	Must match the drive/application voltage class
Full-Load Current	Primary drive-current selection parameter
Motor Power	Helps determine drive size
Frequency	Determines operating range
Rated Speed	Important for speed-control requirements
Starting Torque	Important for Heavy Duty applications
Acceleration Time	Influences overload requirements
Deceleration Time	Influences regenerative energy
Duty Cycle	Determines thermal loading
Ambient Temperature	Affects drive and motor thermal capacity
Mechanical Inertia	Important for braking requirements

A motor’s nominal kW rating should therefore not be used as the only selection criterion.

Two motors with the same nominal power can have different current requirements.

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29. Advantages for Machine Builders

For machine builders, the 20G14NF023JN0NNNNN offers a useful combination of electrical capacity and common-bus flexibility.

The 23 A current rating gives the designer an intermediate option between the 20 A and 30 A models.

The Frame 6 mechanical platform also allows related drive sizes to be compared without completely changing the general cabinet architecture.

The DC-input configuration is particularly useful when the machine already uses a common DC-bus structure.

The filtered configuration provides an additional consideration for electrical-noise management.

The no-HIM configuration allows the machine builder to determine how operator interaction and drive diagnostics should be presented.

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30. Advantages for System Integrators

System integrators may find the model useful when designing multi-drive industrial equipment.

A common DC bus can be incorporated into larger motor-control systems containing multiple drives.

The 23 A output class also provides a useful medium-power option.

When combined with the broader PowerFlex 755 family, the designer can select different current ratings for different motor sections while maintaining a consistent drive-family approach.

This can simplify engineering, documentation, spare-parts planning, and maintenance procedures.

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31. Advantages for Maintenance and Replacement

The complete catalog number is extremely important when replacing the drive.

A replacement should not be selected solely because the voltage, current, or motor kW rating appears similar.

For the 20G14NF023JN0NNNNN, the following characteristics should be checked:

Replacement Item	Verification
Catalog Number	20G14NF023JN0NNNNN
Voltage Class	690 VAC
DC Bus Class	932 VDC nominal
Current	23 A
Normal Duty	18.5 kW
Heavy Duty	15 kW
Frame	6
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Input	DC Input with Precharge
Cooling	Air Cooled
HIM	Blank / No HIM
Dimensions	Frame 6 envelope
Weight	Approximately 14.5 kg

The braking configuration is especially important.

Replacing a JN drive with a JA drive, or vice versa, can change the machine’s braking architecture even though the main current and motor-power ratings are similar.

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32. Overall Product Advantages

Advantage	Practical Value
23 A Current Rating	Suitable for medium-power industrial motors
18.5 kW Normal Duty	Good capacity for continuous industrial operation
15 kW Heavy Duty	Supports more demanding load profiles
690 VAC Class	Suitable for higher-voltage industrial motors
932 VDC Common-Bus Class	Supports centralized DC power architecture
DC Input with Precharge	Appropriate for common-bus applications
Filtered Configuration	Helps with electrical-noise management
CM Jumper Installed	Factory-configured common-mode arrangement
Frame 6	Standardized medium-power mechanical platform
Air Cooling	Practical industrial thermal-management method
Open Type	Flexible cabinet integration
No HIM	Useful for centralized machine-control architectures
No Internal DB Transistor	Appropriate where braking is managed separately

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33. Final Product Assessment

The Allen-Bradley 20G14NF023JN0NNNNN is a medium-power PowerFlex 755 AC drive designed around a high-voltage common-bus architecture.

Its principal electrical ratings are 23 A Normal Duty, 18.5 kW Normal Duty, and 15 kW Heavy Duty. It is a 690 VAC three-phase, Frame 6, air-cooled, open-type drive with DC input and precharge.

The model is configured with filtering and the common-mode capacitor jumper installed.

Its most important distinguishing feature is the absence of an internal dynamic-braking transistor. This makes the JN configuration different from the closely related JA configuration and should be considered carefully whenever the drive is being selected for a high-inertia or rapid-deceleration application.

The 20G14NF023JN0NNNNN is particularly well suited to industrial applications such as conveyors, material handling, pumps, fans, blowers, mixers, process machinery, machine tools, and multi-drive production equipment.

Its 23 A rating also places it at a useful point between the 20 A and 30 A models in the same 690 VAC common-bus family.

For a new installation, the most important selection checks are the motor’s actual full-load current, voltage, Normal Duty or Heavy Duty requirements, acceleration and deceleration profile, DC-bus architecture, braking requirements, cabinet thermal conditions, physical installation space, and required control/interface arrangement.

For a replacement project, the complete catalog number should be compared carefully. In particular, the difference between 20G14NF023JN0NNNNN and 20G14NF023JA0NNNNN should not be overlooked because the dynamic-braking configuration is different.

Overall, the 20G14NF023JN0NNNNN is a solid choice for medium-power industrial motor control where a 690 VAC / 932 VDC-class common-bus architecture, 18.5 kW Normal Duty capacity, 15 kW Heavy Duty capability, filtered configuration, and no internal dynamic-braking transistor are appropriate for the machine design.