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Allen-Bradley 20G1D3D1K4LNANNNNN PowerFlex 755 AC Drive

Product Overview

The Allen-Bradley 20G1D3D1K4LNANNNNN is a high-power PowerFlex 755 AC drive designed for large industrial motor-control systems where high current capacity, high horsepower capability, reliable speed regulation, and robust floor-mounted construction are required.

This model belongs to the PowerFlex 755 series and is configured as an air-cooled, floor-mounted AC packaged drive for 480 VAC three-phase industrial power systems.

The 20G1D3D1K4LNANNNNN is a very high-capacity drive, with a Normal Duty output rating of approximately 1,420 A and 1,250 HP. Its Heavy Duty rating is approximately 1,135 A and 1,000 HP.

The drive is associated with a Frame 10 high-power construction, placing it in the large industrial equipment category rather than the compact cabinet-drive category.

Its physical size and weight are substantial, so installation normally requires a dedicated electrical room, suitable floor loading, planned lifting and transportation arrangements, sufficient ventilation, and adequate maintenance clearance.

The model is intended for applications such as large pumps, fans, compressors, conveyors, mills, crushers, material-handling systems, mining equipment, process machinery, and other high-horsepower industrial equipment.

Brand and Series

Parameter	Specification
Model	20G1D3D1K4LNANNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	AC Drive
Product Description	Air-Cooled 755 AC Packaged Drive
Drive Architecture	Common-Bus Inverter with Precharge
Input Voltage	480 VAC
Input Phase	3 Phase
Normal Duty Current	1,420 A
Normal Duty Horsepower	1,250 HP
Heavy Duty Current	1,135 A
Heavy Duty Horsepower	1,000 HP
Frame Size	Frame 10
Cooling Method	Forced Air / Air Cooled
Mounting	Floor Mount
Enclosure Class	Type 1 / IP21 class
EMC Filter	No EMC filter in the base configuration
Jumper Configuration	Jumper removed
HIM	No HIM
Control Configuration	Phase II control
Drive Option	No additional option specified
Approximate Dimensions	2,453 × 1,800 × 800 mm
Approximate Weight	1,869 kg
Installation Type	Large industrial floor-mounted installation
Application Level	High-power industrial motor control

The dimensions and weight above are intended as practical planning values for the Frame 10 equipment class. Final dimensions and shipping weight can vary with the complete packaged configuration, options, power sections, cabinets, and installation arrangement.

Detailed Technical Parameters

Technical Parameter	Specification
Model	20G1D3D1K4LNANNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Drive Type	High-Power AC Drive
Configuration	Air-Cooled Packaged Drive
Input Voltage	480 VAC
Input Frequency	Industrial 50/60 Hz system dependent
Input Phase	Three Phase
Normal Duty Current	1,420 A
Normal Duty Power	1,250 HP
Heavy Duty Current	1,135 A
Heavy Duty Power	1,000 HP
Frame	Frame 10
Cooling	Forced Air
Mounting	Floor Mount
Enclosure	Type 1 / IP21 class
Common-Bus Function	Supported by the configured architecture
Precharge	Included in the common-bus architecture
EMC Filter	None in the specified base configuration
Jumper	Removed
HIM	Not included
Control	Phase II
Dimensions	Approx. 2,453 mm H × 1,800 mm W × 800 mm D
Weight	Approx. 1,869 kg
Equipment Class	Large industrial drive
Typical Motor Range	Up to approximately 1,250 HP ND / 1,000 HP HD
Typical Installation	Electrical room, drive room, process plant
Cooling Requirement	Dedicated airflow and heat-management provisions recommended

Product Introduction

The 20G1D3D1K4LNANNNNN is designed for applications where a large motor requires controlled variable-speed operation and the electrical system must accommodate very high current levels.

At 1,420 A Normal Duty, this drive is substantially larger than conventional low-power industrial variable frequency drives.

The 1,250 HP Normal Duty rating makes it suitable for very large motors used in process industries, mining, heavy manufacturing, water infrastructure, material handling, and other energy-intensive applications.

The Heavy Duty rating of approximately 1,135 A and 1,000 HP provides a lower power level than the Normal Duty rating but is intended for applications where the motor and process require a more demanding duty profile.

For this reason, motor selection should not be based solely on horsepower.

The actual motor nameplate current, load characteristics, acceleration requirements, overload requirements, process cycle, operating speed range, and mechanical characteristics should all be considered when determining whether the drive is correctly sized.

The PowerFlex 755 platform is intended for integration into industrial automation systems, allowing high-power motors to be incorporated into larger plant-control architectures.

High-Power Electrical Architecture

One of the defining characteristics of the 20G1D3D1K4LNANNNNN is its high-current electrical architecture.

At this current level, the drive becomes a major component of the plant’s electrical infrastructure.

Power distribution, disconnecting equipment, protective devices, grounding, cable sizing, busbar arrangements, motor connections, ventilation, and maintenance access must all be considered during system design.

The common-bus inverter and precharge arrangement is especially useful in installations where several drive sections or large motor-control systems share a common DC-bus architecture.

The precharge function helps manage the initial energization of the DC-link system and is an important part of the electrical design of a high-power drive.

Frame 10 Construction

The Frame 10 construction places the 20G1D3D1K4LNANNNNN among the largest standard PowerFlex 755 drive configurations.

A Frame 10 drive is considerably larger than Frame 8 and Frame 9 equipment.

For a typical Type 1/IP21 floor-mounted arrangement, the overall cabinet envelope can be approximately 2,453 mm high, 1,800 mm wide, and 800 mm deep.

The approximate equipment weight is around 1,869 kg for the standard Frame 10 cabinet configuration.

This means the equipment should be treated as a major industrial installation.

The building floor should be capable of supporting the equipment load, and the transportation route should be checked before delivery.

Door openings, lifting points, service access, cable-entry locations, and available working space should also be considered during project planning.

Cooling and Heat Management

The 20G1D3D1K4LNANNNNN uses an air-cooled architecture.

Air cooling eliminates the need for a dedicated liquid-cooling circuit, which can simplify the overall plant infrastructure.

However, the amount of heat produced by a drive of this capacity is significant.

The electrical room must provide appropriate ventilation and airflow.

Air passages should remain unobstructed, and the installation environment should be kept within the permitted operating conditions for the equipment.

Dust, conductive particles, excessive humidity, corrosive gases, and other contaminants can negatively affect electrical equipment and cooling performance.

For installations in harsh industrial environments, environmental protection should be considered as part of the complete system design.

Product Advantages

1. Very High Current Capacity

The 20G1D3D1K4LNANNNNN provides approximately 1,420 A of Normal Duty output current.

This high current capacity allows the drive to control very large motors that are beyond the range of ordinary industrial variable frequency drives.

It is particularly useful when the connected motor requires a high continuous current and the process demands controlled variable-speed operation.

2. 1,250 HP Normal Duty Capability

The 1,250 HP Normal Duty rating places this model firmly in the high-power industrial category.

This makes it suitable for large mechanical systems where a motor may operate continuously at substantial power levels.

Typical examples include large process pumps, fans, compressors, conveyors, mills, and other major production equipment.

3. 1,000 HP Heavy Duty Capability

The Heavy Duty rating of approximately 1,000 HP allows the drive to be used in applications where greater torque demand or more demanding operating cycles are present.

This distinction is important in industries where motors experience frequent acceleration, variable loads, high starting torque, or substantial process disturbances.

4. 480 VAC Three-Phase Input

The 480 VAC three-phase configuration fits many industrial electrical systems.

This makes the model suitable for large industrial facilities where 480 VAC is already established as part of the plant’s electrical distribution system.

5. Common-Bus Capability

The common-bus architecture is useful for sophisticated industrial installations in which multiple drive systems share a common DC-bus arrangement.

This type of architecture can be valuable in large production systems where drive coordination and centralized power management are important design considerations.

6. Precharge Architecture

The integrated precharge arrangement helps control the initial charging process of the DC-link system.

For a high-power drive, managing this initial energization is important because the DC-link capacitors represent a significant electrical load during startup.

7. Air-Cooled Construction

The forced-air cooling arrangement provides a practical method for managing drive heat without requiring a separate liquid-cooling system.

This can simplify installation and maintenance compared with liquid-cooled alternatives.

8. Floor-Mounted Industrial Design

The floor-mounted configuration is appropriate for large industrial equipment rooms.

It provides a practical mechanical arrangement for high-power electrical connections, large cables, cooling airflow, and service access.

9. Large Motor Compatibility

The high current and horsepower ratings make the model suitable for very large industrial motors.

This is particularly useful in industries where one motor can represent a significant portion of the process capacity.

10. Suitable for Centralized Drive Rooms

The large cabinet design works well in centralized electrical rooms where multiple high-power drives are installed together.

This arrangement can simplify plant-level maintenance and allow drive equipment to be separated from harsh production areas.

Product Applications

Large Pumping Systems

Large pumps are among the most common applications for high-power variable frequency drives.

Water transfer, water treatment, industrial cooling, irrigation, chemical processing, and process-fluid systems can all involve large motors.

The 20G1D3D1K4LNANNNNN can provide controlled motor speed so that pump output can be adjusted according to process requirements.

Instead of operating a large motor continuously at full speed, the process can use variable-speed operation to better match pump output to demand.

Large Industrial Fans

Large fans and blowers can require hundreds or more than one thousand horsepower.

Applications include combustion-air systems, furnace ventilation, industrial ventilation, exhaust systems, cement production, steel production, and process cooling.

The drive can regulate fan speed according to actual process demand.

Mining Conveyors

Mining conveyors can use very large motors because of their length, material load, elevation changes, and continuous operating requirements.

A high-power drive can provide controlled acceleration and deceleration, reducing mechanical shock on conveyor belts, gearboxes, couplings, and other mechanical components.

For long conveyor systems, controlled acceleration can be especially important because sudden torque changes can create significant mechanical stress.

Crushers

Large crushers can experience severe mechanical loading and high torque demand.

The Heavy Duty rating of this model makes it relevant to applications where motor loading is more demanding than a simple constant-torque process.

Actual drive selection should be based on the motor’s nameplate current and the crusher’s operating cycle.

Cement Mills

Cement and mineral-processing facilities contain many large motors.

Mills, fans, conveyors, crushers, separators, and pumps can all require high-power motor control.

The 20G1D3D1K4LNANNNNN can serve as part of the electrical and automation infrastructure for these types of plants.

Steel Processing

Steel plants contain large motors for rolling, cooling, pumping, conveying, ventilation, and other production functions.

A high-power variable frequency drive can provide controlled motor speed and acceleration while integrating into a larger plant automation system.

Large Compressors

Industrial compressors may require significant starting torque and high continuous power.

The drive can be used where the compressor motor and mechanical system are suitable for variable-speed operation.

The compressor manufacturer’s operating envelope, motor current, minimum speed, acceleration requirements, and process control requirements should be considered during final engineering.

Water and Wastewater Facilities

Large water infrastructure projects frequently use high-power pumps.

The drive can provide variable-speed control for water transfer, treatment, aeration, pumping stations, and other large-scale fluid-handling systems.

Material Handling

Large bulk-material systems often depend on high-horsepower motors.

Examples include ore handling, coal handling, aggregate transportation, port equipment, and large industrial conveyors.

Controlled speed and acceleration can help coordinate the motor with the mechanical system and process requirements.

Process Industry Equipment

Chemical, petrochemical, paper, pulp, mineral, food-processing, and other process plants can use high-power motors for pumps, fans, compressors, and material-handling equipment.

The PowerFlex 755 platform is suitable for integration into these larger automation environments.

Application Advantages

For large motor systems, variable-speed control can provide more than simple speed adjustment.

It allows the motor to operate at a speed appropriate to the actual process requirement.

For pump and fan applications, this can help reduce unnecessary operation at full speed.

For conveyors, controlled acceleration can reduce mechanical shock.

For compressors, variable-speed operation can provide another means of matching motor output to process demand.

For large process equipment, controlled deceleration can also help coordinate machine stopping with downstream equipment.

The exact energy, mechanical, and process benefits depend on the application and operating profile.

Installation Requirements

The 20G1D3D1K4LNANNNNN should be installed by personnel experienced with high-power variable frequency drive equipment.

The installation area should have sufficient space for the complete cabinet and all required auxiliary equipment.

The approximate cabinet envelope of 2,453 × 1,800 × 800 mm should be considered during preliminary layout work.

Maintenance clearance should be provided around the equipment.

The final installation should use the mechanical drawings associated with the exact supplied configuration rather than relying solely on general catalog dimensions.

The approximately 1,869 kg equipment weight also requires proper transportation and lifting planning.

The floor structure should be evaluated for the installed load.

Lifting equipment should be selected based on the actual shipping configuration and total handling weight.

Electrical Installation Considerations

At approximately 1,420 A Normal Duty, the electrical connections are substantial.

Cable sizing, busbar arrangements, terminal connections, short-circuit protection, disconnecting equipment, grounding, and motor cable routing all require professional engineering.

The connected motor should be checked against the drive’s voltage and current capability.

The motor’s rated current is particularly important because two motors with the same horsepower can have different current requirements depending on motor efficiency, power factor, voltage, and operating conditions.

The Heavy Duty and Normal Duty ratings should therefore be considered together with the actual motor nameplate.

Environmental Considerations

The Type 1/IP21 class enclosure is primarily intended for appropriate indoor industrial environments.

It should not automatically be considered suitable for outdoor installation or severe environments containing excessive moisture, conductive dust, corrosive chemicals, or other aggressive contaminants.

Where the drive is installed in a harsh environment, the complete enclosure and environmental-control strategy should be evaluated.

The air-cooled system also requires attention to ambient temperature and ventilation.

Maintenance Considerations

High-power drives benefit from a planned preventive-maintenance program.

Cooling airflow should be inspected regularly.

Air passages and ventilation areas should be kept clear of dust and debris.

Electrical connections should be inspected according to the applicable maintenance procedures.

High-current connections deserve particular attention because loose or deteriorated connections can create increased resistance and localized heating.

The condition of cooling fans and other airflow components should also be monitored.

The electrical room itself should be maintained in a clean and controlled condition.

Model Configuration

The complete model number 20G1D3D1K4LNANNNNN identifies a specific high-power PowerFlex 755 configuration.

The “D” voltage designation corresponds to the 480 VAC class.

The “1K4” rating code identifies the approximately 1,420 A Normal Duty / 1,250 HP class.

The “L” enclosure/configuration designation corresponds to the floor-mounted Type 1/IP21-style high-power arrangement associated with this product family.

The remaining characters identify additional configuration selections.

Because the PowerFlex 755 product family includes a large number of combinations, the complete catalog number should be retained whenever the drive is ordered, replaced, or added to an existing system.

Main Technical Specification Table

Parameter	Detailed Specification
Model	20G1D3D1K4LNANNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product	Air-Cooled 755 AC Packaged Drive
Drive Architecture	Common-Bus Inverter with Precharge
Input Voltage	480 VAC
Input Phase	3 Phase
Normal Duty Current	1,420 A
Normal Duty Rating	1,250 HP
Heavy Duty Current	1,135 A
Heavy Duty Rating	1,000 HP
Frame Size	Frame 10
Cooling	Air Cooled / Forced Air
Enclosure	Type 1 / IP21 class
Mounting	Floor Mount
EMC Filter	None in specified configuration
Jumper	Removed
HIM	None
Control	Phase II
Dimensions	Approx. 2,453 × 1,800 × 800 mm
Weight	Approx. 1,869 kg
Installation	Indoor industrial electrical room
Application	High-power motor control
Duty Class	Normal Duty / Heavy Duty
Motor Application	Large industrial motors

Five Related PowerFlex 755 Models

The following models are closely related to the 20G1D3D1K4LNANNNNN and are useful when evaluating different high-power current and horsepower levels.

Model	Input Voltage	Normal Duty Current	Normal Duty HP	Heavy Duty Current	Heavy Duty HP	Frame	Approx. Dimensions	Approx. Weight
20G1D3D1K0LNANNNNN	480 VAC	1,045 A	900 HP	Approx. 800 A class	750 HP class	Frame 9	Approx. 2,453 × 1,200 × 800 mm	Approx. 1,246 kg
20G1D3D1K1LNANNNNN	480 VAC	1,135 A	1,000 HP	Approx. 900 A class	800 HP class	Frame 9	Approx. 2,453 × 1,200 × 800 mm	Approx. 1,246 kg
20G1D3D1K3LNANNNNN	480 VAC	1,365 A	1,100 HP	1,045 A	900 HP	Frame 9	Approx. 2,453 × 1,200 × 800 mm	Approx. 1,246 kg
20G1D3D1K4LNANNNNN	480 VAC	1,420 A	1,250 HP	1,135 A	1,000 HP	Frame 10	Approx. 2,453 × 1,800 × 800 mm	Approx. 1,869 kg
20G1D3D1K6LNANNNNN	480 VAC	1,655 A	1,500 HP	Approx. 1,270 A class	1,100 HP class	Frame 10	Approx. 2,453 × 1,800 × 800 mm	Approx. 1,869 kg

The dimensions and weights in this comparison represent the standard high-power cabinet class and should be treated as approximate planning values.

The actual installed package can become larger and heavier when additional option cabinets, disconnects, reactors, filters, contactors, or other equipment are included.

The 20G1D3D1K3LNANNNNN is particularly close to the 20G1D3D1K4LNANNNNN in electrical performance.

The main difference is that the K4 rating moves into the approximately 1,420 A / 1,250 HP Normal Duty class and uses the larger Frame 10 construction.

The 20G1D3D1K6LNANNNNN provides a further increase in current and horsepower capacity and is useful when the motor requirements exceed the K4 class.

Five Popular Related Models

The following models provide useful comparisons across the broader PowerFlex 755 high-power range.

Model	Input Voltage	Normal Duty Current	Normal Duty HP	Heavy Duty Class	Frame	Cooling	Approx. Dimensions	Weight
20G1D3C540LNANNNNN	400 VAC class	540 A	High-power class	Configuration dependent	Frame 8	Air cooled	Approx. 2,145 × 778 × 425 mm*	Approx. 286 kg*
20G1D3D505LNANNNNN	480 VAC	505 A	400 HP	350 HP class	Frame 8	Air cooled	Approx. 2,453 × 600–800 × 600–800 mm	Approx. 623 kg
20G1D3D617LNANNNNN	480 VAC	617 A	500 HP	400 HP class	Frame 8	Air cooled	Approx. 2,453 × 600–800 × 600–800 mm	Approx. 623 kg
20G1D3D800LNANNNNN	480 VAC	800 A	700 HP	600 HP class	Frame 9	Air cooled	Approx. 2,453 × 1,200 × 600–800 mm	Approx. 1,246 kg
20G1D3D1K3LNANNNNN	480 VAC	1,365 A	1,100 HP	900 HP	Frame 9	Air cooled	Approx. 2,453 × 1,200 × 800 mm	Approx. 1,246 kg

*The 20G1D3C540LNANNNNN dimensional and weight figures represent the high-power open-drive Frame 8 class rather than a guaranteed final packaged cabinet configuration.

These models cover several practical steps in the PowerFlex 755 high-power range.

The 505 A and 617 A models are considerably smaller in electrical capacity than the 20G1D3D1K4LNANNNNN and may be considered where the motor power requirement is lower.

The 800 A model represents an intermediate high-power level.

The 1K3 model is much closer to the K4 in terms of motor capacity and is a useful alternative when approximately 1,100 HP Normal Duty is sufficient.

Comparison of the K3 and K4 Models

Parameter	20G1D3D1K3LNANNNNN	20G1D3D1K4LNANNNNN
Model	20G1D3D1K3LNANNNNN	20G1D3D1K4LNANNNNN
Voltage	480 VAC	480 VAC
Normal Duty Current	1,365 A	1,420 A
Normal Duty HP	1,100 HP	1,250 HP
Heavy Duty Current	1,045 A	1,135 A
Heavy Duty HP	900 HP	1,000 HP
Frame	Frame 9	Frame 10
Cooling	Air Cooled	Air Cooled
Mounting	Floor Mount	Floor Mount
Approx. Cabinet Height	2,453 mm	2,453 mm
Approx. Cabinet Width	1,200 mm	1,800 mm
Approx. Cabinet Depth	800 mm	800 mm
Approx. Weight	1,246 kg	1,869 kg

The K4 version provides a higher Normal Duty current and horsepower rating than the K3 version.

However, the increase in electrical capacity also brings a larger physical installation.

The change from Frame 9 to Frame 10 is particularly important when preparing a new electrical-room layout or replacing an existing drive.

A replacement project should therefore evaluate both electrical compatibility and mechanical compatibility.

Benefits for Large Industrial Plants

The 20G1D3D1K4LNANNNNN is well suited to centralized high-power motor-control applications.

In a large industrial plant, high-power drives are often installed in dedicated electrical rooms rather than directly beside the mechanical equipment.

This arrangement provides several practical benefits.

The drive can be protected from excessive dust, moisture, mechanical vibration, and other process-area conditions.

Maintenance personnel can also access the electrical equipment in a more controlled environment.

At the same time, the motor can remain located near the mechanical equipment while power and control connections are routed between the motor and drive room.

Benefits for Pump and Fan Applications

Pump and fan loads often benefit from variable-speed operation.

A large pump does not necessarily need to operate at maximum speed throughout the entire production cycle.

Likewise, a large fan may require different airflow levels depending on the production rate or environmental conditions.

The 20G1D3D1K4LNANNNNN provides the current capacity required for very large motors while allowing motor speed to be adjusted according to the process.

This can help improve process control and may reduce unnecessary mechanical and electrical loading during lower-demand operating periods.

Benefits for Conveyor Systems

Large conveyors can be mechanically demanding because of their length and material load.

A sudden motor start can place considerable stress on the belt, gearbox, coupling, shaft, and supporting structure.

Variable-speed control allows acceleration and deceleration to be managed more gradually.

For long conveyors, this can be an important consideration.

The drive can also be coordinated with upstream and downstream material-handling equipment to create a smoother overall process.

Benefits for Mining and Heavy Industry

Mining and heavy-industry equipment often operates continuously under significant mechanical loads.

Large pumps, conveyors, crushers, fans, mills, and other equipment can require high-power motors.

The 20G1D3D1K4LNANNNNN is positioned for this type of application because of its high current capacity and large motor rating.

Its floor-mounted architecture is also appropriate for centralized electrical facilities commonly found in large industrial plants.

Maintenance and Service Advantages

The large cabinet format provides practical access to major electrical components and power sections.

Because the drive is installed as a dedicated industrial system, maintenance procedures can be organized around the plant’s electrical maintenance program.

Cooling-system inspections, electrical connection checks, contamination control, and general cabinet inspection can all be incorporated into scheduled maintenance.

At this power level, preventive maintenance is especially important because an unexpected drive failure can interrupt a major production process.

Recommended Selection Checklist

Before selecting the 20G1D3D1K4LNANNNNN for a new project, the following information should be reviewed:

Selection Item	Recommended Check
Model	20G1D3D1K4LNANNNNN
Motor Voltage	Confirm 480 VAC motor system
Motor Current	Confirm against the drive current rating
Motor HP	Confirm against Normal Duty or Heavy Duty requirements
Duty Type	Determine Normal Duty or Heavy Duty operation
Starting Torque	Evaluate actual mechanical requirements
Acceleration Time	Check process and mechanical requirements
Deceleration	Check stopping and regenerative conditions
Ambient Temperature	Confirm installation environment
Cooling	Confirm adequate ventilation
Cabinet Space	Allow sufficient room for Frame 10 equipment
Floor Loading	Confirm approximately 1,869 kg equipment class
Cable Routing	Plan high-current power connections
Grounding	Design appropriate grounding system
Maintenance Access	Provide adequate working clearance
Transportation	Confirm route and lifting requirements
Control System	Confirm automation and communication requirements
Replacement Compatibility	Match the complete catalog number

Final Product Summary

The Allen-Bradley 20G1D3D1K4LNANNNNN is a high-power PowerFlex 755 AC drive designed for large industrial motor-control applications.

Its 480 VAC three-phase architecture, approximately 1,420 A Normal Duty current rating, 1,250 HP Normal Duty capacity, and approximately 1,135 A / 1,000 HP Heavy Duty rating place it among the largest standard PowerFlex 755 drive configurations.

The Frame 10 construction provides the physical and electrical capacity needed for these high-power applications.

The approximately 2,453 × 1,800 × 800 mm cabinet envelope and approximately 1,869 kg weight demonstrate that this is major industrial electrical equipment rather than a compact variable frequency drive.

The air-cooled design provides a practical cooling arrangement for large industrial installations, while the floor-mounted construction is suitable for dedicated drive rooms and electrical equipment areas.

The common-bus inverter with precharge architecture is particularly useful for large industrial systems in which the drive forms part of a broader high-power DC-bus arrangement.

Typical applications include large pumps, industrial fans, compressors, mining conveyors, crushers, cement equipment, steel-processing machinery, water infrastructure, bulk-material handling, and other high-horsepower process equipment.

When selecting or replacing this model, the complete motor nameplate, current requirement, duty cycle, mechanical load, environmental conditions, cabinet dimensions, floor loading, cable arrangement, and control-system requirements should all be evaluated.

For a large industrial motor that requires approximately 1,420 A Normal Duty capacity and up to approximately 1,250 HP Normal Duty operation, the 20G1D3D1K4LNANNNNN represents a substantial PowerFlex 755 high-power drive platform suitable for demanding continuous-process and heavy industrial applications.