ProductPRODUCT
Featured products
Contact Us
- Allen Bradley
- 20G14NF023JN0NNNNN
- PowerFlex AC Drive
- USA
- 2145 × 778 × 425 mm
- 286kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 18
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
17.4 Integrated Precharge
The precharge arrangement supports controlled energization of the DC link.
This is particularly important in high-voltage common-bus systems.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 |
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 |
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.