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Allen-Bradley 20G14NF142JN0NNNNN PowerFlex 755 AC Drive – Detailed Product Guide

1. Product Overview

The Allen-Bradley 20G14NF142JN0NNNNN is a PowerFlex 755 air-cooled AC drive designed for high-power industrial motor control applications. It is a 690 VAC, three-phase, Frame 6, open-type drive with a Normal Duty rating of 142 A / 132 kW and a Heavy Duty rating of 119 A / 110 kW.

This model uses a DC input with precharge, includes the factory-installed filtering and common-mode capacitor jumper configuration, and is supplied without an operator interface module. The catalog number specifies the JN0 configuration, meaning that an internal dynamic braking transistor is not included.

The drive is intended for applications where accurate motor speed control, adjustable acceleration and deceleration, reliable operation, and integration into a larger industrial automation system are important. Its power rating makes it suitable for substantial motors used in process equipment, pumps, fans, conveyors, compressors, material handling systems, and other demanding industrial machinery.

The 20G14NF142JN0NNNNN belongs to the PowerFlex 755 family and is particularly well suited to larger installations where the drive is installed as part of an electrical control cabinet or industrial drive system rather than as a small standalone wall-mounted inverter.

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2. Basic Product Identification

Parameter	Specification
Brand	Allen-Bradley
Product Series	PowerFlex 755
Product Family	PowerFlex 750-Series
Model / Part Number	20G14NF142JN0NNNNN
Product Type	Air-Cooled AC Drive
Drive Configuration	755 AC Packaged Drive
Input Type	DC Input with Precharge
Input Voltage Class	690 VAC
Phase	Three Phase
Normal Duty Current	142 A
Normal Duty Power	132 kW
Heavy Duty Current	119 A
Heavy Duty Power	110 kW
Enclosure Type	Open Type
Frame Size	Frame 6
Cooling Method	Air Cooled
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
Internal Dynamic Braking Transistor	Not Included
Internal Braking Resistor	Not Included
HIM	Blank / No HIM
Network Capability	Embedded EtherNet/IP capability
Mounting	Industrial cabinet / panel mounting
Approx. Operating Temperature	0 to 50 °C
Relative Humidity	Approximately 5–95%, non-condensing
Storage Temperature	Approximately -40 to +70 °C
Dimensions, W × H × D	308.0 × 665.5 × 346.4 mm
Weight	38.6 kg
Product Construction	Industrial open-frame drive
Typical Application Class	Heavy industrial motor control

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3. Detailed Electrical Parameters

The 20G14NF142JN0NNNNN is a high-power drive intended for 690 VAC-class industrial systems. Its electrical configuration is particularly useful in installations where a DC bus architecture is required.

Electrical Parameter	Specification
Model / Part Number	20G14NF142JN0NNNNN
Rated Voltage Class	690 VAC
System Phase	3 Phase
Input Configuration	DC Input with Precharge
Normal Duty Output Current	142 A
Normal Duty Power Rating	132 kW
Heavy Duty Output Current	119 A
Heavy Duty Power Rating	110 kW
Normal Duty	132 kW class
Heavy Duty	110 kW class
Cooling	Air Cooled
Frame	Frame 6
Dynamic Braking	None
Dynamic Braking Transistor	No
Internal Braking Resistor	No
Filtering	Installed
CM Capacitor Jumper	Installed
Operator Interface	Blank / No HIM
Motor Control	Variable-frequency AC motor control
Typical Motor Type	Three-phase industrial AC motor
Installation Type	Cabinet / panel integration
Dimensions	308.0 × 665.5 × 346.4 mm
Weight	38.6 kg

The 142 A Normal Duty rating is the key identifying electrical characteristic of this model. In applications where the motor operates continuously under relatively stable load conditions, the 132 kW Normal Duty rating provides a substantial amount of available motor power.

For more demanding applications involving frequent overload conditions, high starting torque, or significant load variation, the Heavy Duty rating of 119 A and 110 kW should be considered during drive selection.

The actual motor, load profile, ambient temperature, installation method, cable arrangement, and applicable electrical standards should always be evaluated before final drive sizing.

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4. Mechanical Parameters

The 20G14NF142JN0NNNNN uses a Frame 6 mechanical platform. The frame size is important when designing the enclosure, control cabinet, mounting plate, cable routing, ventilation system, and maintenance access.

Mechanical Parameter	Specification
Model / Part Number	20G14NF142JN0NNNNN
Frame Size	Frame 6
Enclosure	Open Type
Cooling	Air Cooled
Width	308.0 mm
Height	665.5 mm
Depth	346.4 mm
Overall Dimensions	308.0 × 665.5 × 346.4 mm
Approximate Weight	38.6 kg
Mounting Orientation	Vertical industrial mounting
Installation Environment	Electrical cabinet / industrial control panel
Cabinet Ventilation	Required according to application heat load
Service Access	Front and surrounding cabinet access should be considered
Installation Construction	Open-frame industrial drive

The approximately 38.6 kg weight should be taken into account when designing the mounting structure. For cabinet installations, the mounting plate should be sufficiently rigid to support the drive without excessive vibration or deformation.

The 308.0 mm width and 665.5 mm height also mean that this is not a compact machine-mounted inverter. It belongs to a higher-power industrial drive class and normally requires proper cabinet planning.

Adequate ventilation is particularly important for an air-cooled drive. The cabinet designer should provide appropriate airflow and sufficient clearance around heat-generating components.

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5. What the Catalog Number Means

The catalog number 20G14NF142JN0NNNNN contains useful information about the drive configuration.

Catalog Number Section	Meaning
20G	PowerFlex 755 drive family
14	DC-input configuration with precharge
N	Drive configuration identifier
F	690 VAC class / related voltage configuration
142	142 A Normal Duty rating
J	Filtered configuration with CM jumper installed
N	No internal dynamic braking transistor
0	Blank / no HIM configuration
NNNNN	No additional specified options in the remaining positions

The most important distinction for this particular model is the N dynamic braking configuration.

The model therefore should not be treated as equivalent to a similarly rated model containing the internal dynamic braking transistor.

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6. Dynamic Braking Configuration

One of the most important characteristics of the 20G14NF142JN0NNNNN is that it is supplied with no internal dynamic braking transistor.

This is different from the corresponding JA0 configuration.

Feature	20G14NF142JN0NNNNN	20G14NF142JA0NNNNN
Model / Part Number	20G14NF142JN0NNNNN	20G14NF142JA0NNNNN
Voltage Class	690 VAC	690 VAC
Normal Duty	142 A / 132 kW	142 A / 132 kW
Heavy Duty	119 A / 110 kW	119 A / 110 kW
Frame	Frame 6	Frame 6
Dynamic Braking Transistor	None	Included
Internal Braking Resistor	Not Included	Not Included
Filtering	Installed	Installed
CM Jumper	Installed	Installed
Dimensions	308.0 × 665.5 × 346.4 mm	308.0 × 665.5 × 346.4 mm
Weight	38.6 kg	38.6 kg

The JN0 version can be a good choice when the application does not require the drive’s internal dynamic braking transistor.

For applications involving rapid deceleration, high-inertia loads, frequent stopping, or regenerative energy, braking requirements should be evaluated carefully. An external braking solution may be required depending on the application.

This makes the JN0 configuration particularly appropriate when braking requirements are modest or when the overall system uses another method of handling regenerative energy.

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7. Product Introduction

The Allen-Bradley 20G14NF142JN0NNNNN is built for large industrial motor-control systems where a high-power variable-frequency drive is required.

With a 132 kW Normal Duty rating, it can control large three-phase motors used in a wide range of industrial machinery. The 690 VAC platform is particularly relevant to facilities using higher-voltage industrial distribution systems, helping support large motor installations while keeping current levels appropriate for the power rating.

The drive’s air-cooled design provides a practical solution for cabinet-based industrial installations. Rather than requiring a liquid-cooling system, heat generated during operation is managed through forced or controlled airflow.

The open-type construction is also useful for system integrators. The drive can be installed inside a properly designed electrical cabinet together with disconnect equipment, circuit protection, contactors where required, PLC equipment, network components, terminal blocks, and other control hardware.

Another useful characteristic is the installed filtering and CM jumper configuration. This can help simplify the electrical design where the selected system requires the corresponding filtering arrangement.

The model is supplied without a HIM, which makes sense in applications where the drive is operated and monitored through a PLC, HMI, SCADA system, engineering workstation, or another control architecture.

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8. Main Applications

8.1 Conveyor Systems

The 20G14NF142JN0NNNNN can be used for large conveyor systems in manufacturing plants, logistics facilities, mining-related material handling, and bulk-material applications.

Variable-speed control allows the conveyor speed to be adjusted according to production requirements.

For long conveyors, the ability to control acceleration and deceleration can also help reduce mechanical stress on belts, gearboxes, couplings, and other transmission components.

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8.2 Pumps

Large industrial pumps are another important application.

The drive can provide adjustable motor speed so that pump output can be matched more closely to process requirements.

This can be useful in water treatment, industrial process systems, cooling systems, circulation systems, and other facilities where constant-speed operation is not always necessary.

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8.3 Fans and Blowers

Large fans and blowers can require substantial motor power, particularly in industrial ventilation, process exhaust, combustion-air systems, and material-processing equipment.

Variable-speed operation allows airflow to be adjusted without relying entirely on mechanical throttling.

For these applications, proper motor and drive sizing is important because fan and blower loads can have substantially different operating characteristics at different speeds.

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8.4 Compressors

The drive can also be considered for industrial compressor applications where variable-speed operation is appropriate.

Speed control can help coordinate compressor output with changing process demand.

The specific compressor design, motor type, acceleration requirements, minimum operating speed, and manufacturer requirements should be evaluated before selecting the final drive configuration.

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8.5 Material Handling Equipment

High-power material handling machinery can benefit from adjustable motor speed and controlled acceleration.

Typical examples include large lifting systems, transfer equipment, industrial conveyors, and heavy-duty processing machinery.

The drive can be integrated into a larger automation system so that machine speed, acceleration, stopping, and operating status are coordinated with the rest of the production line.

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8.6 Industrial Processing Equipment

The drive is suitable for many process machines that require a large three-phase AC motor and adjustable speed.

Applications can include mixers, material-processing machinery, large rotating equipment, and production machinery.

The advantage of using a variable-frequency drive in these systems is that motor speed can be adjusted electronically rather than being fixed by the motor’s direct connection to the electrical supply.

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8.7 Mining and Heavy Material Handling

The 690 VAC platform is especially relevant to larger industrial installations.

It can be used in systems where substantial motor power is needed for material movement, crushing-related equipment, processing machinery, ventilation equipment, pumps, and other large rotating loads.

For mining or similarly demanding environments, however, enclosure, environmental protection, cooling, cable routing, grounding, and application-specific certification requirements must be considered separately.

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9. Major Product Advantages

High Power Capacity

The 132 kW Normal Duty rating provides enough capacity for large industrial motors while maintaining a relatively straightforward variable-speed drive architecture.

This makes the model suitable for installations where smaller drive families would not provide sufficient output capacity.

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690 VAC Three-Phase Platform

The 690 VAC rating is useful for high-power industrial systems.

At higher voltage levels, the current required for a given motor power can be reduced compared with lower-voltage systems. This can be beneficial when designing large motor feeders, switchgear, cable systems, and industrial distribution equipment.

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Normal Duty and Heavy Duty Ratings

The drive provides separate Normal Duty and Heavy Duty ratings.

Rating	Current	Power
Normal Duty	142 A	132 kW
Heavy Duty	119 A	110 kW

This distinction allows the engineer to select the drive according to the actual mechanical load.

A relatively stable load may make use of the Normal Duty rating, while a more demanding application may need to be sized according to the Heavy Duty rating.

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Air-Cooled Construction

Air cooling keeps the drive architecture relatively straightforward.

It avoids the need for a liquid cooling circuit and makes the drive suitable for conventional industrial control cabinets when the cabinet ventilation system is correctly designed.

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Open-Type Design

The open-type enclosure is practical for system integrators building complete electrical panels.

The drive can be incorporated into a larger cabinet containing other automation and power-control equipment.

This provides flexibility for custom machine builders and industrial control engineers.

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Integrated Industrial Networking Capability

The PowerFlex 755 platform supports industrial network integration, including EtherNet/IP-based control architectures.

This can reduce the need for isolated drive-control wiring and allows drive status, commands, diagnostic information, and operating parameters to be incorporated into a larger automation system.

For plants using centralized PLC and HMI control, this can make the drive easier to integrate into the overall machine architecture.

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No HIM Configuration

The blank / no-HIM configuration is useful when a local keypad is not required.

For automated systems, operators may interact with the machine through an HMI or supervisory control system instead of directly through the drive.

This keeps the drive configuration focused on the requirements of the larger control system.

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Filtered Configuration

The factory configuration includes filtering with the CM jumper installed.

This can simplify system planning where the specified filtering arrangement is required.

Electrical installation should still follow the applicable drive installation requirements, grounding practices, cable recommendations, and EMC considerations.

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10. Installation Considerations

The 20G14NF142JN0NNNNN is a large industrial drive, so cabinet planning should be done before installation.

The mechanical dimensions are approximately:

308.0 mm wide × 665.5 mm high × 346.4 mm deep

with a weight of approximately:

38.6 kg

A rigid mounting surface should be used.

The cabinet should also have enough clearance for cable connections, ventilation, inspection, maintenance, and removal of the drive when servicing is required.

The heat generated by the drive should be included in the cabinet thermal calculation. Simply providing physical space is not enough; the enclosure must also be able to maintain an acceptable internal temperature.

Because this is an air-cooled drive, airflow should not be blocked by nearby equipment, wiring ducts, cable bundles, or incorrectly positioned cabinet components.

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11. Application Selection Notes

When selecting this drive for an actual motor, the engineer should not rely only on the motor’s kW rating.

The following factors should be checked:

Selection Factor	Consideration
Motor Voltage	Must be compatible with the selected drive system
Motor Current	Should remain within the appropriate drive rating
Motor Power	Check against Normal Duty or Heavy Duty requirements
Load Type	Constant torque, variable torque, or another load profile
Starting Torque	Important for conveyors, compressors, hoists, and heavy machinery
Acceleration Time	Check whether the drive can meet the required acceleration profile
Deceleration Time	Especially important for high-inertia loads
Regeneration	Determine whether braking hardware is required
Ambient Temperature	Verify operating conditions
Installation Altitude	Consider derating where applicable
Cabinet Cooling	Required for air-cooled installation
Cable Length	Evaluate motor cable requirements
EMC Requirements	Check filtering and grounding arrangement
Network Requirements	Determine PLC/HMI communication architecture
Motor Insulation	Verify suitability for inverter-duty operation
Maintenance Access	Provide adequate service clearance

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12. Same-Series Recommended Models

The following models are closely related PowerFlex 755 configurations. They are useful alternatives when the motor power requirement is different or when the braking configuration needs to change.

Model / Part Number	Voltage Class	Normal Duty	Heavy Duty	Frame	Dynamic Braking	Dimensions	Weight
20G14NF098JN0NNNNN	690 VAC, 3 PH	98 A / 90 kW	82 A / 75 kW	Frame 6	None	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF119JN0NNNNN	690 VAC, 3 PH	119 A / 110 kW	98 A / 90 kW	Frame 6	None	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF142JN0NNNNN	690 VAC, 3 PH	142 A / 132 kW	119 A / 110 kW	Frame 6	None	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF171JN0NNNNN	690 VAC, 3 PH	171 A / 160 kW	142 A / 132 kW	Frame 7	None	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF212JN0NNNNN	690 VAC, 3 PH	212 A / 200 kW	171 A / 160 kW	Frame 7	None	430 × 881.5 × 349.6 mm	72.6–108.9 kg

The 20G14NF098JN0NNNNN is a logical choice when the required motor rating is below the 132 kW class.

The 20G14NF119JN0NNNNN provides a step between the 90 kW and 132 kW Normal Duty ranges.

The 20G14NF142JN0NNNNN is the direct same-rating reference and is therefore the most natural model for comparison.

The 20G14NF171JN0NNNNN and 20G14NF212JN0NNNNN move into the larger Frame 7 range and are appropriate when a higher-power motor is required.

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13. Same-Series Models With Dynamic Braking Transistor

If the application requires an internal dynamic braking transistor, the corresponding JA0 configurations are worth considering.

Model / Part Number	Voltage	Normal Duty	Heavy Duty	Frame	Dynamic Braking	Dimensions	Weight
20G14NF098JA0NNNNN	690 VAC, 3 PH	98 A / 90 kW	82 A / 75 kW	Frame 6	DB transistor included	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF119JA0NNNNN	690 VAC, 3 PH	119 A / 110 kW	98 A / 90 kW	Frame 6	DB transistor included	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF142JA0NNNNN	690 VAC, 3 PH	142 A / 132 kW	119 A / 110 kW	Frame 6	DB transistor included	308.0 × 665.5 × 346.4 mm	38.6 kg
20G14NF171JA0NNNNN	690 VAC, 3 PH	171 A / 160 kW	142 A / 132 kW	Frame 7	DB transistor included	430 × 881.5 × 349.6 mm	72.6–108.9 kg
20G14NF212JA0NNNNN	690 VAC, 3 PH	212 A / 200 kW	171 A / 160 kW	Frame 7	DB transistor included	430 × 881.5 × 349.6 mm	72.6–108.9 kg

These models maintain the same general PowerFlex 755 platform while changing the dynamic braking configuration.

The choice between JN0 and JA0 should therefore be made based on the braking requirements of the machine rather than simply choosing the model with the higher apparent feature count.

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14. Five Popular Related Models From the Same Brand

The following are widely recognized models from the Allen-Bradley drive portfolio and cover lower-power and different PowerFlex application ranges.

Model / Part Number	Series	Voltage Class	Current / Power Class	Typical Application	Dimensions	Weight
25B-D017N114	PowerFlex 525	480 VAC class	17 A class / approximately 7.5 kW class	General machine control, conveyors, pumps, fans	Configuration dependent	Configuration dependent
25B-D024N114	PowerFlex 525	480 VAC class	24 A class / approximately 11 kW class	Machine automation and general-purpose motor control	Configuration dependent	Configuration dependent
25B-D030N114	PowerFlex 525	480 VAC class	30 A class / approximately 15 kW class	Pumps, fans, conveyors, machinery	Configuration dependent	Configuration dependent
20G11NC5P0JA0NNNNN	PowerFlex 755	480 VAC class	50 A class / approximately 37–45 kW class	Large industrial motor control	Configuration dependent	Configuration dependent
20G11NC072JA0NNNNN	PowerFlex 755	480 VAC class	72 A class / approximately 55 kW class	Heavy industrial equipment and process machinery	Configuration dependent	Configuration dependent

For these models, exact mechanical dimensions and weights depend on the particular frame, enclosure, input configuration, options, and product construction. They should therefore be confirmed against the exact catalog number before being used for cabinet fabrication or shipping calculations.

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15. PowerFlex 755 Family Rating Comparison

For a clearer view of where the 20G14NF142JN0NNNNN fits within the 690 VAC PowerFlex 755 range, the following rating ladder is useful.

Model / Part Number	Normal Duty Current	Normal Duty Power	Heavy Duty Current	Heavy Duty Power	Frame
20G14NF034JN0NNNNN	34 A	30 kW	30 A	22 kW	Frame 6
20G14NF046JN0NNNNN	46 A	37 kW	34 A	30 kW	Frame 6
20G14NF050JN0NNNNN	50 A	45 kW	46 A	37 kW	Frame 6
20G14NF061JN0NNNNN	61 A	55 kW	50 A	45 kW	Frame 6
20G14NF082JN0NNNNN	82 A	75 kW	61 A	55 kW	Frame 6
20G14NF098JN0NNNNN	98 A	90 kW	82 A	75 kW	Frame 6
20G14NF119JN0NNNNN	119 A	110 kW	98 A	90 kW	Frame 6
20G14NF142JN0NNNNN	142 A	132 kW	119 A	110 kW	Frame 6
20G14NF171JN0NNNNN	171 A	160 kW	142 A	132 kW	Frame 7
20G14NF212JN0NNNNN	212 A	200 kW	171 A	160 kW	Frame 7
20G14NF263JN0NNNNN	263 A	250 kW	212 A	200 kW	Frame 7

This comparison shows that the 20G14NF142JN0NNNNN sits near the upper end of the Frame 6 range.

The next major step is the 171 A model, which moves to Frame 7. This can be an important consideration when designing a cabinet because moving from Frame 6 to Frame 7 changes the physical installation requirements considerably.

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16. Why Choose the 20G14NF142JN0NNNNN?

The 20G14NF142JN0NNNNN makes sense when the application requires a high-power 690 VAC drive but does not require an internal dynamic braking transistor.

Its combination of 142 A Normal Duty current, 132 kW Normal Duty power, 119 A Heavy Duty current, and 110 kW Heavy Duty power places it in a useful range for large industrial motors.

The Frame 6 construction also provides a relatively compact mechanical platform compared with the larger Frame 7 models in the same voltage and power family.

Another practical advantage is that the model already has the specified filtering and CM jumper configuration, reducing the amount of catalog-number customization required for that part of the installation.

The absence of a HIM can also be an advantage for automated installations where the drive is expected to operate under PLC or supervisory control instead of through a local keypad.

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17. Advantages for System Integrators

For panel builders and system integrators, the 20G14NF142JN0NNNNN provides a solid base drive for constructing a larger motor-control system.

The open-type design allows the drive to be installed inside a suitable control enclosure along with circuit protection, disconnect equipment, control components, network equipment, terminal blocks, and other system hardware.

Its Frame 6 dimensions are large enough that cabinet layout should be planned carefully, but the dimensions remain manageable compared with the larger Frame 7 drives.

The 38.6 kg weight should also be included in the mechanical design of the mounting plate and cabinet.

From a system architecture perspective, the PowerFlex 755 platform is intended for applications where drive control is part of a broader automation system rather than a simple standalone motor-speed controller.

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18. Advantages for End Users

For the end user, one of the main benefits is the ability to control large motors with adjustable speed rather than operating them continuously at fixed line frequency.

This can improve process flexibility and allow machine speed to be matched to production requirements.

The drive can also provide controlled acceleration and deceleration, which can reduce mechanical shock compared with direct-on-line motor starting in suitable applications.

In process systems, variable-speed operation can help operators adjust production rates and coordinate different sections of a machine.

In addition, network integration can make drive status and control information available to the larger automation system.

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19. Recommended Application Matching

Application	Suitability	Main Reason
Large Conveyor	Excellent	High power and adjustable motor speed
Large Pump	Excellent	Variable-speed process control
Industrial Fan	Excellent	Adjustable airflow and motor speed
Large Blower	Excellent	High-power variable-speed operation
Material Handling	Excellent	Controlled acceleration and speed
Process Machinery	Excellent	Flexible motor control
Compressor	Good to Excellent	Suitable where variable-speed compressor operation is supported
Mixer	Good	High-power motor control
High-Inertia Load	Good, with braking review	Deceleration and regenerative energy must be evaluated
Hoist / Crane	Application-specific	Braking and safety requirements require detailed engineering
High-Speed Spindle	Generally not the primary target	Requires application-specific drive and motor selection

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20. Important Difference Between Normal Duty and Heavy Duty

The two ratings should not be confused.

For this model:

Normal Duty: 142 A / 132 kW

Heavy Duty: 119 A / 110 kW

Normal Duty is generally associated with applications where the motor load profile is less severe.

Heavy Duty is intended for applications with greater overload demand or more demanding torque characteristics.

The correct rating should be selected according to the actual motor current and load profile rather than selecting the drive solely by the motor’s nameplate kW.

For example, a motor that appears to be within the 132 kW range may still require a larger drive if its application has significant starting torque, frequent acceleration, repeated overloads, or other demanding operating conditions.

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21. Mechanical Summary

Item	Value
Model / Part Number	20G14NF142JN0NNNNN
Frame	Frame 6
Construction	Open Type
Cooling	Air Cooled
Width	308.0 mm
Height	665.5 mm
Depth	346.4 mm
Dimensions	308.0 × 665.5 × 346.4 mm
Weight	38.6 kg
Installation	Vertical cabinet / panel installation
Cabinet Requirement	Suitable industrial enclosure
Thermal Management	Cabinet airflow and heat dissipation required

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22. Technical Summary

Parameter	Final Specification
Model / Part Number	20G14NF142JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Family	PowerFlex 750-Series
Product	PowerFlex Air-Cooled 755 AC Drive
Input	DC Input with Precharge
Voltage	690 VAC
Phase	Three Phase
Normal Duty	142 A / 132 kW
Heavy Duty	119 A / 110 kW
Frame	6
Enclosure	Open Type
Cooling	Air Cooled
Filtering	Filtered
CM Jumper	Installed
Dynamic Braking	None
DB Transistor	Not Included
Internal Braking Resistor	Not Included
HIM	Blank / No HIM
Network	Embedded EtherNet/IP capability
Operating Temperature	Approximately 0–50 °C
Relative Humidity	Approximately 5–95%, non-condensing
Storage Temperature	Approximately -40 to +70 °C
Width	308.0 mm
Height	665.5 mm
Depth	346.4 mm
Dimensions	308.0 × 665.5 × 346.4 mm
Weight	38.6 kg
Primary Use	High-power industrial AC motor control

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23. Final Product Assessment

The Allen-Bradley 20G14NF142JN0NNNNN is a high-power PowerFlex 755 AC drive designed for demanding industrial motor-control applications.

Its 690 VAC three-phase input class, 142 A Normal Duty rating, 132 kW Normal Duty capacity, 119 A Heavy Duty rating, and 110 kW Heavy Duty capacity make it suitable for large industrial motors and machinery.

The Frame 6 air-cooled open-type construction is well suited to cabinet-based installations where the drive is integrated into a larger electrical and automation system.

Its filtered configuration with CM jumper installed provides a defined factory configuration for industrial system integration, while the blank/no-HIM configuration makes it appropriate for installations where local keypad operation is not required.

The most important point when specifying this exact catalog number is its JN0 dynamic-braking configuration. The drive does not contain the internal dynamic braking transistor. If the machine requires aggressive deceleration or significant braking of a high-inertia load, the braking arrangement should therefore be evaluated separately during system design.

With dimensions of approximately 308.0 × 665.5 × 346.4 mm and a weight of approximately 38.6 kg, cabinet construction and mechanical support should be planned accordingly.

Overall, this model is best viewed as a large industrial variable-frequency drive for applications requiring substantial motor power, reliable speed control, industrial network integration, and flexible integration into a larger automation system.