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Allen-Bradley 20G11BC1K2JN0NNNNN — Detailed Product Specifications, Introduction, Applications, Advantages and Recommended Models

1. Product Overview

The 20G11BC1K2JN0NNNNN is a high-power PowerFlex 755 AC Packaged Drive designed for large industrial motor-control applications.

It belongs to the Allen-Bradley PowerFlex 755 series and is intended for installations where large three-phase AC motors require controlled starting, stopping, speed regulation, torque management and integration with a plant-wide automation system.

This model is a 400 V AC, three-phase, Frame 9, air-cooled drive with a rated output current of 1,175 A. Its published power ratings are approximately 800 kW Light Duty, 710 kW Normal Duty and 560 kW Heavy Duty. The drive uses a 600 mm deep MCC-style Type 1/IP20 configuration, includes an EMC filter and CM jumper arrangement, and does not include a dynamic-braking transistor.

The JN0 configuration is important because it is supplied with a blank configuration with no local HIM/keypad. This makes the model particularly suitable for systems where the main operator interface is located elsewhere, such as a PLC cabinet, control room HMI, SCADA system or centralized drive-management station.

The model is also an active PowerFlex 755 configuration.

2. Brand and Series

Item	Specification
Model	20G11BC1K2JN0NNNNN
Brand	Allen-Bradley
Product family	PowerFlex
Series	PowerFlex 755
Product type	PowerFlex 755 AC Packaged Drive
Drive type	Variable Frequency Drive / AC Drive
Cooling	Air cooled / forced air
Frame	Frame 9
Input voltage class	400 VAC
Input phase	Three-phase
Rated output current	1,175 A
Light Duty rating	Approximately 800 kW
Normal Duty rating	710 kW
Heavy Duty rating	560 kW
Enclosure	IP20 / Type 1
Cabinet style	600 mm Deep MCC Style
Input configuration	AC Input with Precharge / DC terminals
EMC configuration	Filtered
CM configuration	CM jumper installed
Dynamic braking	None
HIM	Blank / No HIM
Product status	Active

3. Complete Technical Parameter Table

Parameter	Specification
Model	20G11BC1K2JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Sub-family	755 AC Packaged Drive
Product type	Air-Cooled AC Drive
Input voltage	400 VAC class
Supply voltage range	380–480 VAC class
Input frequency	50/60 Hz
Input phases	3 phase
Output phases	3 phase
Nominal output current	1,175 A
Light Duty output rating	Approximately 800 kW
Normal Duty output rating	710 kW
Heavy Duty output rating	560 kW
Frame size	Frame 9
Cooling	Forced air / air cooled
Enclosure	IP20 / Type 1
Cabinet style	600 mm Deep MCC Style
Input type	AC input with precharge
DC terminals	Included
EMC filter	Yes
CM jumper	Installed
Dynamic braking transistor	No
Local HIM	No / Blank
Keypad	Not included
Integrated motion function	No
Safety-function suitability	Yes
Control characteristic	PID
Embedded communication	Ethernet/IP
Main application	Large industrial motor control
Operating temperature	Approximately -20 to +60 °C
Storage temperature	Approximately -40 to +70 °C
Depth	600 mm
Overall dimensions	Frame 9 MCC-style configuration; exact height and width depend on the mechanical configuration
Weight (kg)	Approximately 1,246 kg class
Installation	Industrial electrical room / MCC lineup
Product status	Active

4. Electrical Specifications

The electrical capacity of the 20G11BC1K2JN0NNNNN is the main reason this model is selected for large industrial machinery.

With an output rating of 1,175 A, it is designed for motors far beyond the range of compact machine drives.

The published rating is 710 kW under Normal Duty, with 560 kW Heavy Duty capability and approximately 800 kW Light Duty capability.

The difference between these ratings is important.

A drive cannot simply be selected by looking at the motor’s nameplate kW.

The actual load profile, overload requirement, acceleration requirements, operating speed, torque characteristics and duty cycle all have to be considered.

5. 400 VAC Three-Phase Input

The drive is designed for the 400 VAC three-phase industrial voltage class.

The corresponding supply range is generally associated with the 380–480 V AC class, making it suitable for common industrial electrical systems in many regions.

The three-phase architecture makes the drive suitable for large industrial motors used in:

• Pumping systems.
• Large fans.
• Blowers.
• Conveyors.
• Material-handling equipment.
• Mining machinery.
• Cement-processing machinery.
• Large process equipment.
• Industrial ventilation systems.
• Large compressors.

6. 1,175 A Output Current

The 1,175 A output-current rating is one of the defining characteristics of this model.

This is not a small machine-level VFD.

It belongs to the high-power industrial-drive category.

At this current level, the installation needs careful consideration of:

• Incoming power.
• Motor cable sizing.
• Cable termination.
• Grounding.
• Short-circuit protection.
• Cabinet ventilation.
• Heat dissipation.
• Maintenance clearance.
• Electrical-room floor loading.
• Mechanical handling.

7. Power Ratings

Duty Category	Power Rating
Light Duty	Approximately 800 kW
Normal Duty	710 kW
Heavy Duty	560 kW

The three ratings allow the drive to be matched to different types of loads.

A centrifugal fan or pump may have a relatively predictable torque curve and may therefore use the Light Duty or Normal Duty rating depending on the application.

A conveyor, crusher or other demanding machine may require Heavy Duty operation.

The final selection should always be based on the actual motor current and load profile rather than simply selecting the largest kW figure.

8. Frame 9 Design

The Frame 9 architecture is intended for large industrial drive installations.

A Frame 9 drive is physically much larger than compact PowerFlex drives.

It provides the necessary physical space for:

• Power conversion components.
• DC bus components.
• Switching devices.
• Cooling equipment.
• Control electronics.
• High-current electrical connections.
• Communication and I/O components.

The physical size is therefore an important part of the installation design.

9. 600 mm Deep MCC-Style Configuration

The model uses a 600 mm deep MCC-style enclosure.

The 600 mm dimension is particularly important when planning the electrical room.

The installer should consider not only the cabinet depth but also:

• Front clearance.
• Rear clearance where applicable.
• Cable-entry space.
• Cable-bending radius.
• Lifting access.
• Maintenance access.
• Ventilation.
• Adjacent cabinet clearance.
• Floor loading.
• Door and corridor dimensions.

The 600 mm depth is a confirmed catalog parameter for this configuration.

10. Dimensions

The mechanical specification should be treated carefully because Frame 9 systems can have configuration-dependent physical dimensions.

Mechanical Parameter	Specification
Model	20G11BC1K2JN0NNNNN
Frame	Frame 9
Cabinet style	MCC style
Cabinet depth	600 mm
Enclosure	IP20 / Type 1
Cooling	Forced air
Overall depth	600 mm class
Overall width	Configuration dependent
Overall height	Configuration dependent
Installation arrangement	Large industrial cabinet / MCC arrangement
Mechanical drawing	Product-specific drawing should be used for final dimensions

The 600 mm depth is directly associated with the catalog configuration.

For final mechanical engineering, however, the exact height and width should be taken from the applicable Frame 9 product drawing rather than estimated.

This is especially important when installing the drive into an existing MCC lineup or when the electrical room has restricted access.

11. Weight

For planning purposes, this model should be considered a very heavy industrial electrical assembly.

A practical preliminary figure is approximately 1,246 kg, or around 1.25 metric tons.

Weight Parameter	Approximate Value
Model	20G11BC1K2JN0NNNNN
Equipment weight class	Heavy industrial
Estimated weight (kg)	Approximately 1,246 kg
Approximate metric tons	Approximately 1.25 tons
Transportation	Heavy equipment handling required
Floor loading	Must be checked
Lifting	Proper lifting equipment required

The approximate weight should be treated as a planning figure rather than a substitute for the final shipping documentation.

Actual shipping weight can vary with packaging, accessories, cabinet configuration and other supplied components.

For a project requiring precise transportation calculations, the final equipment documentation should always be used.

12. Product Introduction

The 20G11BC1K2JN0NNNNN is a high-capacity industrial AC drive used to control large three-phase motors.

Its primary purpose is to convert fixed-frequency AC electrical power into controlled motor power.

Instead of allowing the motor to run continuously at one fixed speed, the drive can regulate motor operation according to the requirements of the machine.

This provides much greater flexibility than a traditional direct-on-line motor starter.

13. How the Drive Works in an Industrial System

A simplified industrial system can be represented as:

Three-Phase AC Supply → PowerFlex 755 → AC Motor → Mechanical Load

The drive receives electrical power from the plant supply.

It processes the incoming power through its power-conversion stage.

The resulting output is controlled according to the motor-control requirements.

The motor then drives the connected equipment.

The control system can determine the desired operating condition, while the drive handles the actual motor-control function.

14. Why the JN0 Configuration Is Different

The JN0 designation is especially relevant because this configuration is supplied as Blank / No HIM.

In other words, there is no standard local keypad/operator interface included with the drive.

This can be an advantage in centralized automation systems.

For example, a large production plant may have:

PLC → Ethernet/IP Network → PowerFlex 755 → Motor

with the operator interacting through a control-room HMI rather than standing beside the drive.

In such a system, a local HIM may not be necessary.

15. Advantages of the No-HIM Configuration

The JN0 arrangement can provide several practical benefits.

First, it keeps the local drive configuration relatively straightforward.

Second, it works well when the plant already has centralized operator control.

Third, it avoids installing an unnecessary local display where operators are not expected to operate the drive manually.

Fourth, maintenance technicians can use appropriate service tools or external interfaces when required.

This makes the JN0 configuration particularly suitable for large automated plants.

16. Embedded Ethernet/IP

The PowerFlex 755 platform provides embedded Ethernet/IP capability.

This is valuable because modern industrial facilities increasingly rely on Ethernet-based automation networks.

A typical arrangement may connect the drive to:

• PLC.
• HMI.
• SCADA.
• Industrial Ethernet switch.
• Supervisory control system.
• Plant historian.
• Maintenance system.

This makes it possible to monitor drive operation without requiring a dedicated local keypad at every drive.

17. Industrial Communication

Communication is particularly useful when many large drives are installed throughout a facility.

For example, a plant may contain:

• 10 large pumps.
• 8 large fans.
• 6 conveyors.
• 4 blowers.
• Several process motors.

Instead of installing separate local operator stations for every motor, the plant can centralize monitoring and control.

The JN0 configuration is well suited to this type of architecture.

18. EMC Filter

The model includes an EMC-filtered configuration.

Variable-frequency drives use high-frequency switching to control motor power.

That switching process can create electrical interference.

The EMC arrangement helps support better control of conducted electromagnetic interference when the drive is installed correctly.

However, EMC performance also depends on:

• Motor cable construction.
• Cable length.
• Shielding.
• Grounding.
• Cabinet layout.
• Cable routing.
• Control wiring.
• Network cable routing.

The filter should therefore be considered one part of a complete EMC installation strategy.

19. CM Jumper Installed

The catalog configuration includes the CM jumper installed.

This configuration detail is relevant to the drive’s common-mode and EMC arrangement.

When installing or replacing a drive, the actual catalog configuration should be checked carefully.

A replacement drive with a different filter or jumper configuration should not automatically be treated as mechanically and electrically identical.

20. Dynamic Braking

The 20G11BC1K2JN0NNNNN does not include a dynamic-braking transistor.

This is suitable for many large industrial applications.

For example, a large centrifugal pump may not need rapid braking.

A large fan may also have a relatively long natural coast-down period.

However, some applications may require controlled high-speed deceleration.

These include:

• High-inertia conveyors.
• Centrifuges.
• Hoists.
• Certain material-handling systems.
• Large rotating machines.

In those applications, the braking-energy requirement must be calculated separately.

21. Applications

21.1 Large Pump Systems

Large pumps are one of the most natural applications for this drive.

Potential applications include:

• Raw-water pumping.
• Cooling-water pumping.
• Process-water circulation.
• Wastewater treatment.
• Industrial water transfer.
• Irrigation.
• Pipeline pumping.
• Boiler-related water systems.

The ability to regulate pump speed can make the system more flexible than operating the motor continuously at one fixed speed.

22. Water Treatment

Large water-treatment facilities can contain numerous high-power pumps and blowers.

The drive can be used for:

• Raw-water pumps.
• Sludge pumps.
• Transfer pumps.
• Aeration blowers.
• Recirculation pumps.
• Process-water pumps.

The centralized communication architecture is particularly useful in water-treatment plants because equipment may be spread across a large facility.

23. Large Cooling-Water Pumps

Industrial plants often require large cooling-water systems.

The demand for cooling water can vary according to production conditions.

A variable-speed drive can adjust motor speed according to actual process requirements.

This can provide:

• Better flow control.
• Reduced unnecessary circulation.
• Smoother starting.
• Reduced mechanical shock.
• Easier process adjustment.

24. Large Fans

Fans are another major application.

Typical examples include:

• Furnace fans.
• Exhaust fans.
• Cooling fans.
• Dust-collection fans.
• Industrial ventilation fans.
• Mine ventilation fans.
• Process-air fans.

For suitable fan systems, speed reduction can substantially reduce the required mechanical power.

25. Large Blowers

Large blowers are common in industrial processes.

Possible applications include:

• Wastewater aeration.
• Pneumatic conveying.
• Combustion air.
• Industrial drying.
• Process ventilation.
• Furnace systems.

The drive can regulate blower speed according to the required airflow.

26. Conveyor Systems

Large conveyors can have significant starting torque requirements.

This is especially true for:

• Long belt conveyors.
• Inclined conveyors.
• Mining conveyors.
• Bulk-material conveyors.
• Port conveyors.
• Cement conveyors.

Controlled acceleration can reduce sudden mechanical stress.

Potential benefits include:

• Reduced belt shock.
• Reduced gearbox stress.
• Reduced coupling stress.
• Smoother material flow.
• Better production control.

27. Mining Applications

The 1,175 A capability makes this model particularly relevant to large mining equipment.

Possible applications include:

• Ore conveyors.
• Dewatering pumps.
• Mine ventilation fans.
• Crushers.
• Material-handling systems.
• Processing equipment.

Mining environments can be mechanically demanding, so the complete installation must be engineered for the specific environment.

28. Cement and Aggregate Plants

Large cement and aggregate plants often contain substantial motor loads.

Potential drive applications include:

• Crushers.
• Large fans.
• Conveyors.
• Blowers.
• Pumps.
• Material feeders.
• Process ventilation.
• Large process motors.

The PowerFlex 755 architecture is well suited to facilities where multiple large motors must be coordinated through a central automation system.

29. Industrial Compressors

Large compressors can also use high-power AC drives.

Possible applications include:

• Industrial air compressors.
• Process compressors.
• Utility compressors.
• Gas-handling equipment.
• Large refrigeration-related machinery.

Compressor applications require careful evaluation because the motor torque profile can differ significantly from that of a pump or fan.

30. Industrial Ventilation

Large factories, tunnels, processing facilities and industrial buildings can require very high airflow.

The drive can control:

• Exhaust fans.
• Supply-air fans.
• Cooling fans.
• Process ventilation fans.
• Dust-extraction systems.

The ability to adjust fan speed can make airflow control more flexible.

31. Advantages of the 20G11BC1K2JN0NNNNN

Advantage	Description
1,175 A output	Suitable for very large AC motors
800 kW LD class	High capacity for suitable variable-torque applications
710 kW ND	Strong normal-duty capability
560 kW HD	Suitable for demanding loads within the applicable duty rating
Frame 9	Designed for large industrial equipment
400 VAC	Suitable for common industrial power systems
Air cooled	Practical for appropriately ventilated electrical rooms
600 mm MCC style	Suitable for large electrical lineups
EMC filtered	Helps manage conducted electrical interference
Ethernet/IP	Supports centralized automation
No HIM	Useful for centrally controlled installations
AC precharge	Suitable for high-power DC-bus architecture
No internal braking transistor	Suitable for applications that do not require regenerative braking hardware
PowerFlex 755 architecture	Suitable for sophisticated industrial motor control

32. High-Power Industrial Capability

The greatest advantage of this model is its combination of:

1,175 A current capacity + 710 kW Normal Duty + Frame 9 + 400 VAC + industrial communication.

This combination places the drive in a class suitable for very large industrial machinery.

It is especially useful when the motor is too large for compact or mid-range VFDs.

33. Centralized Control Advantage

The JN0 configuration can be very practical in a centralized control architecture.

For example:

Control Room HMI

↓

PLC

↓

Industrial Ethernet Network

↓

PowerFlex 755

↓

Large AC Motor

This arrangement reduces the need for a separate local operator interface at the drive.

For a large plant containing many drives, this can produce a cleaner and more standardized control architecture.

34. Maintenance Advantages

Although the JN0 configuration does not include a local HIM, the drive can still be integrated into a broader maintenance strategy.

Maintenance personnel can monitor the drive through the plant automation system and use appropriate service equipment when local access is required.

Important information can include:

• Drive status.
• Motor current.
• Output frequency.
• Fault information.
• Alarm information.
• Operating condition.
• Communication status.
• Parameter values.

This is particularly useful when the drive is installed inside a dedicated electrical room rather than in the production area.

35. Thermal Management

The drive uses forced-air cooling.

At this power level, thermal management is critical.

The electrical room should have suitable ventilation and environmental control.

Important maintenance areas include:

• Cooling fans.
• Airflow paths.
• Cabinet cleanliness.
• Ventilation openings.
• Ambient temperature.
• Dust accumulation.
• Electrical-room temperature.

Blocked airflow can increase thermal stress and shorten component life.

36. Environmental Considerations

The main enclosure is rated IP20 / Type 1.

Therefore, the drive should normally be installed in an appropriate electrical environment.

The main cabinet should not be considered suitable for direct exposure to:

• Rain.
• Direct water spray.
• Severe dust.
• Corrosive chemicals.
• Uncontrolled outdoor environments.

Where the surrounding environment is harsh, additional enclosure or room-level environmental protection may be required.

37. Motor Selection

The motor should be selected based on actual electrical and mechanical requirements.

Motor Parameter	Importance
Motor voltage	Must match drive voltage class
Motor current	Critical sizing parameter
Motor power	Used as a general capacity reference
Motor frequency	Establishes base operating point
Motor speed	Determines operating range
Motor torque	Determines suitability for the load
Starting torque	Important for heavy loads
Overload requirement	Determines duty selection
Acceleration time	Influences current demand
Deceleration time	Influences braking requirements
Duty cycle	Influences thermal loading
Motor cable length	Influences installation and EMC
Motor insulation	Important for VFD applications

38. Installation Considerations

A 1,175 A Frame 9 drive requires proper engineering before installation.

The following should be considered:

Electrical Room

The room must provide sufficient space for the drive and maintenance access.

Cable Routing

High-current power cables need adequate routing and bending space.

Cooling

The room must have sufficient ventilation.

Grounding

Grounding must be correctly designed.

Protection

Incoming protection and short-circuit coordination must be evaluated.

Floor Loading

The approximate 1.25-ton equipment weight needs to be considered.

Transportation

The equipment must be transported using appropriate lifting and handling equipment.

39. Commissioning

A practical commissioning sequence includes:

1. Verify the drive catalog number.
2. Confirm incoming voltage.
3. Confirm motor nameplate data.
4. Verify motor wiring.
5. Verify grounding.
6. Confirm control wiring.
7. Confirm Ethernet/IP configuration.
8. Configure motor parameters.
9. Configure acceleration.
10. Configure deceleration.
11. Verify minimum speed.
12. Verify maximum speed.
13. Test motor direction.
14. Run the motor at low speed.
15. Check motor current.
16. Check acceleration performance.
17. Check deceleration performance.
18. Verify alarms.
19. Verify fault handling.
20. Test remote operation.
21. Test communication.
22. Save the final parameter set.

40. Preventive Maintenance

A high-power drive should have a planned maintenance schedule.

Typical maintenance activities include:

• Inspecting cooling fans.
• Checking cabinet cleanliness.
• Inspecting electrical connections.
• Checking grounding.
• Inspecting motor cables.
• Reviewing fault history.
• Reviewing alarm history.
• Checking operating temperature.
• Inspecting ventilation paths.
• Checking communication connections.
• Backing up parameters.
• Recording unusual operating conditions.

For critical production equipment, keeping a complete parameter backup can save significant time during a future replacement.

41. Recommended Same-Series Models

The following five models are closely related PowerFlex 755 configurations and are useful when comparing capacity, motor-current requirements and application duty.

Model	Series	Voltage	Current Class	LD / ND / HD Rating	Frame	Depth	Weight (kg)
20G11BC910JN0NNNNN	PowerFlex 755	400 VAC	~910 A	~560 / 500 / 400 kW	9	600 mm	~1,250
20G11BC1K0JN0NNNNN	PowerFlex 755	400 VAC	~1,040 A	~630 / 560 / 500 kW	9	600 mm	~1,250
20G11BC1K1JN0NNNNN	PowerFlex 755	400 VAC	~1,090 A	~710 / 630 / 500 kW	9	600 mm	~1,250
20G11BC1K2JN2NNNNN	PowerFlex 755	400 VAC	1,175 A	800 / 710 / 560 kW	9	600 mm	~1,246
20G11BC1K5JN0NNNNN	PowerFlex 755	400 VAC	~1,480 A	~900 / 850 / 710 kW	9	600 mm	Configuration dependent

The models above cover a useful range around the 1,175 A target.

The 20G11BC1K1 class is appropriate when the motor current is somewhat lower.

The 20G11BC1K2 class is the direct capacity match.

The 20G11BC1K5 class is more appropriate when the motor requires substantially more current.

42. Recommended Model 1 — 20G11BC910JN0NNNNN

The 20G11BC910 configuration represents a lower-current PowerFlex 755 Frame 9 class.

Parameter	Specification
Model	20G11BC910JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Output current	Approximately 910 A
Light Duty	Approximately 560 kW
Normal Duty	Approximately 500 kW
Heavy Duty	Approximately 400 kW
Frame	9
Cooling	Air cooled
Enclosure	IP20 / Type 1
Cabinet	600 mm Deep MCC Style
HIM	No HIM
Depth	600 mm
Dimensions	Frame 9; exact height and width configuration dependent
Weight (kg)	Approximately 1,250 kg class

This is a sensible choice when the motor current is significantly below 1,175 A.

43. Recommended Model 2 — 20G11BC1K0JN0NNNNN

The 20G11BC1K0 class provides a step up from the 910 A configuration.

Parameter	Specification
Model	20G11BC1K0JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Output current	Approximately 1,040 A
Light Duty	Approximately 630 kW
Normal Duty	Approximately 560 kW
Heavy Duty	Approximately 500 kW
Frame	9
Cooling	Air cooled
Enclosure	IP20 / Type 1
Cabinet	600 mm Deep MCC Style
HIM	No HIM
Depth	600 mm
Dimensions	Frame 9; exact height and width configuration dependent
Weight (kg)	Approximately 1,250 kg class

It can be considered when the motor current is below the 1,175 A requirement but still within the high-power range.

44. Recommended Model 3 — 20G11BC1K1JN0NNNNN

The 20G11BC1K1 model is particularly close to the target configuration.

Parameter	Specification
Model	20G11BC1K1JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Output current	Approximately 1,090 A
Light Duty	Approximately 710 kW
Normal Duty	Approximately 630 kW
Heavy Duty	Approximately 500 kW
Frame	9
Cooling	Air cooled
Enclosure	IP20 / Type 1
Cabinet	600 mm Deep MCC Style
HIM	No HIM
Depth	600 mm
Dimensions	Frame 9; exact height and width configuration dependent
Weight (kg)	Approximately 1,250 kg class

This is one of the most logical alternatives when the motor current is close to, but below, the 1,175 A requirement.

45. Recommended Model 4 — 20G11BC1K2JN2NNNNN

The 20G11BC1K2JN2NNNNN has the same major power class as the target model but uses a different local operator-interface configuration.

Parameter	Specification
Model	20G11BC1K2JN2NNNNN
Series	PowerFlex 755
Voltage	400 VAC
Output current	1,175 A
Light Duty	Approximately 800 kW
Normal Duty	710 kW
Heavy Duty	560 kW
Frame	9
Cooling	Air cooled
Enclosure	IP20 / Type 1
Cabinet	600 mm Deep MCC Style
HIM	Enhanced LCD / Full Numeric
Depth	600 mm
Dimensions	Frame 9; exact height and width configuration dependent
Weight (kg)	Approximately 1,246 kg class

The main reason to consider this model is the local interface.

The target JN0 version has no HIM, while the JN2 configuration provides a local operator interface.

This can be useful when technicians need direct access to drive parameters and status at the cabinet.

46. Recommended Model 5 — 20G11BC1K5JN0NNNNN

The 20G11BC1K5 configuration provides a larger current class.

Parameter	Specification
Model	20G11BC1K5JN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Output current	Approximately 1,480 A
Light Duty	Approximately 900 kW
Normal Duty	Approximately 850 kW
Heavy Duty	Approximately 710 kW
Frame	9
Cooling	Air cooled
Enclosure	IP20 / Type 1
Cabinet	600 mm Deep MCC Style
HIM	No HIM
Depth	600 mm
Dimensions	Frame 9; exact height and width configuration dependent
Weight (kg)	Configuration dependent; approximately 1,250 kg class

This is the logical direction to consider when the target 1,175 A rating is not sufficient.

47. Five Recommended Same-Brand Models

For broader comparison, the following five models cover different PowerFlex capacity levels and interface configurations.

Model	Series	Voltage Class	Current / Power Class	Typical Use	Dimensions	Weight (kg)
20G11BC1K2JN2NNNNN	PowerFlex 755	400 VAC	1,175 A / 710 kW ND	Large motors with local interface	600 mm deep MCC style	~1,246
20G11BC1K2JN4NNNNN	PowerFlex 755	400 VAC	1,175 A / 710 kW ND	Large motors with protected local interface	600 mm deep MCC style	~1,246
20G11BC2K1JN0NNNNN	PowerFlex 755	400 VAC	2,150 A / 1,250 kW ND	Extremely large industrial motors	600 mm deep MCC style	Configuration dependent
20G11BE825JN0NNNNN	PowerFlex 755	600 VAC	825 A / 900 HP ND	Large 600 V industrial motors	600 mm deep MCC style	Configuration dependent
25B-D030N114	PowerFlex 525	480 VAC class	~30 A class	Smaller machine motors	Compact frame	Configuration dependent

The first two models are especially close to the target model.

The 20G11BC2K1JN0NNNNN is a much larger PowerFlex 755 configuration and is appropriate for substantially higher-power motor systems.

The 20G11BE825JN0NNNNN is useful where the plant uses a 600 V motor system.

The 25B-D030N114 is a much smaller drive and is better suited to machine-level applications rather than large industrial motors.

48. 20G11BC1K2JN2NNNNN Comparison

Parameter	Target JN0	JN2 Alternative
Model	20G11BC1K2JN0NNNNN	20G11BC1K2JN2NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	400 VAC	400 VAC
Current	1,175 A	1,175 A
ND rating	710 kW	710 kW
HD rating	560 kW	560 kW
Frame	9	9
Depth	600 mm	600 mm
HIM	None	Enhanced LCD / Full Numeric
Main advantage	Centralized control	Local operator access
Weight	~1,246 kg	~1,246 kg class

49. 20G11BC1K2JN4NNNNN Comparison

Parameter	Target JN0	JN4 Alternative
Model	20G11BC1K2JN0NNNNN	20G11BC1K2JN4NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	400 VAC	400 VAC
Current	1,175 A	1,175 A
ND rating	710 kW	710 kW
HD rating	560 kW	560 kW
Frame	9	9
Depth	600 mm	600 mm
HIM	None	Enhanced LCD / Full Numeric
Local interface	No HIM	Higher-protection local HIM
Weight	~1,246 kg	~1,246 kg class

The JN4 configuration is more appropriate where direct local operator access is required and a higher-protection interface is desirable.

The JN0 version is more attractive when the plant uses centralized control.

50. Comparison of PowerFlex 755 Current Classes

Model Family	Approx. Current	LD	ND	HD	Frame
20G11BC910	~910 A	~560 kW	~500 kW	~400 kW	9
20G11BC1K0	~1,040 A	~630 kW	~560 kW	~500 kW	9
20G11BC1K1	~1,090 A	~710 kW	~630 kW	~500 kW	9
20G11BC1K2	1,175 A	800 kW	710 kW	560 kW	9
20G11BC1K4	~1,465 A	~850 kW	~800 kW	~630 kW	9
20G11BC1K5	~1,480 A	~900 kW	~850 kW	~710 kW	9
20G11BC2K1	~2,150 A	~1,400 kW	~1,250 kW	~1,000 kW	10

51. Choosing the Right Model by Motor Current

Motor Current Requirement	Suggested Drive Class
Up to approximately 900 A	20G11BC910
Up to approximately 1,040 A	20G11BC1K0
Up to approximately 1,090 A	20G11BC1K1
Up to approximately 1,175 A	20G11BC1K2
Approximately 1,175–1,465 A	20G11BC1K4 class
Around 1,480 A	20G11BC1K5
Above 2,000 A	20G11BC2K1 class

This is a preliminary comparison only.

Final drive sizing should always use the motor nameplate current and actual load requirements.

52. Choosing the Right Model by Operator Interface

Configuration	Local HIM	Best Use
JN0	No HIM	Centralized control-room operation
JN2	Enhanced LCD / Full Numeric	Local commissioning and maintenance
JN4	Enhanced LCD / Full Numeric with higher protection	Local operation in more demanding industrial areas

This is one of the easiest ways to distinguish otherwise similar PowerFlex 755 models.

The electrical power rating can remain essentially the same while the operator-interface configuration changes.

53. Choosing the Right Model by Application

Application	Recommended Configuration
Centralized pump station	JN0
Automated water-treatment plant	JN0
Large production line	JN0 or JN2
Local maintenance access required	JN2
Local interface in a demanding industrial area	JN4
Remote control room	JN0
Manual commissioning at cabinet	JN2 / JN4
Large mining application	JN0 / JN4 depending on installation
Large conveyor	JN0 / JN2
Large fan	JN0
Large pump	JN0
Complex process machinery	JN2 / JN4 depending on local operation requirements

54. Important Installation Notes

The drive should be installed by qualified personnel familiar with high-power variable-frequency drive systems.

The 1,175 A output level means that electrical installation errors can have serious consequences.

The installation should take into account:

• Proper isolation.
• Protective coordination.
• Grounding.
• Cable sizing.
• Motor insulation.
• Short-circuit capability.
• Cabinet ventilation.
• Environmental conditions.
• EMC practices.
• Safe maintenance access.

55. Mechanical Planning

Because the equipment is approximately 1.25 metric tons, mechanical planning is important.

The installation team should verify:

• Delivery route.
• Door width.
• Corridor width.
• Floor strength.
• Lifting equipment.
• Forklift capacity.
• Crane capacity if required.
• Cabinet mounting position.
• Maintenance access.
• Cable entry.
• Final cabinet dimensions.

A large drive should not be delivered to the plant before the complete transportation route has been checked.

56. Electrical-Room Planning

The electrical room should provide adequate:

• Ventilation.
• Temperature control.
• Access.
• Lighting.
• Maintenance space.
• Cable routing.
• Grounding facilities.
• Fire protection.
• Emergency isolation.

The drive’s IP20 / Type 1 enclosure means that environmental control of the installation area is important.

57. Why This Model Is Suitable for Large Industrial Plants

The 20G11BC1K2JN0NNNNN is particularly well suited to large industrial plants because it combines high current capacity with centralized communication.

A large plant may have dozens or hundreds of motors.

Not all of them need local keypads.

For large equipment located in electrical rooms, centralized control can be more practical.

The JN0 configuration fits naturally into this architecture.

58. Key Benefits for System Integrators

For system integrators, the main advantages include:

• High motor-current capacity.
• Large power range.
• Ethernet/IP connectivity.
• Centralized control compatibility.
• No unnecessary local keypad.
• Frame 9 architecture.
• Standardized PowerFlex platform.
• Large industrial application range.
• Suitable for pump and fan systems.
• Suitable for large conveyors.
• Suitable for process equipment.

This makes the drive useful in projects where multiple large motors must be controlled as part of one automation system.

59. Key Benefits for Maintenance Teams

Maintenance teams can benefit from the standardized PowerFlex platform.

Important operational information can be integrated into the plant control system.

This allows technicians to investigate:

• Drive faults.
• Motor current.
• Speed.
• Frequency.
• Alarm conditions.
• Communication status.
• Operating conditions.

For large plants, centralized diagnostic information can significantly reduce the amount of time spent walking between individual motor-control locations.

60. Key Benefits for End Users

From an end-user perspective, the main benefit is control flexibility.

A large motor does not always need to run at full speed.

A variable-speed drive allows the process to use the motor according to actual production requirements.

For suitable pump, fan and blower applications, this can also provide substantial energy-saving potential.

Actual savings depend on the process and should be calculated from real operating data.

61. Complete Product Summary

Category	Specification
Model	20G11BC1K2JN0NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product family	PowerFlex
Product type	Air-Cooled 755 AC Packaged Drive
Status	Active
Voltage	400 VAC
Input range	380–480 VAC class
Input phases	3 phase
Output current	1,175 A
Light Duty	Approximately 800 kW
Normal Duty	710 kW
Heavy Duty	560 kW
Frame	9
Cooling	Forced air
Enclosure	IP20 / Type 1
Cabinet style	600 mm Deep MCC Style
Input type	AC input with precharge
DC terminals	Yes
EMC filter	Yes
CM jumper	Installed
Dynamic braking	None
Local HIM	No HIM
Integrated motion	No
Safety-function suitability	Yes
Control characteristic	PID
Communication	Embedded Ethernet/IP
Operating temperature	Approximately -20 to +60 °C
Storage temperature	Approximately -40 to +70 °C
Depth	600 mm
Overall dimensions	Frame 9; exact height and width configuration dependent
Weight (kg)	Approximately 1,246 kg class
Typical applications	Pumps, fans, blowers, conveyors, mining, cement, process equipment
Main strength	High-power centralized industrial motor control

62. Final Conclusion

The 20G11BC1K2JN0NNNNN is a high-capacity Allen-Bradley PowerFlex 755 AC drive designed for large industrial motors.

Its combination of 1,175 A output current, 800 kW Light Duty capability, 710 kW Normal Duty rating and 560 kW Heavy Duty rating makes it suitable for some of the largest motor-driven systems commonly found in industrial facilities.

The Frame 9 design and 600 mm Deep MCC Style construction make it suitable for large electrical rooms and MCC-style installations.

The drive is air cooled and uses an EMC-filtered configuration with a CM jumper installed.

The JN0 configuration is particularly useful when the plant does not require a local HIM.

Instead, the drive can be incorporated into a centralized control architecture where the PLC, HMI or SCADA system provides the primary operator interface.

The lack of a local HIM should not be considered a weakness.

In a modern automated plant, it can actually be an advantage.

A centralized control room can supervise multiple drives simultaneously, while maintenance personnel can access the required drive information through the plant’s automation and service infrastructure.

This is particularly practical in large pump stations, water-treatment plants, mining facilities, cement plants, manufacturing plants and large material-handling systems.

The 1,175 A current rating is the most important electrical characteristic.

It gives the drive enough capacity for very large motors while keeping it within the PowerFlex 755 Frame 9 class.

The 710 kW Normal Duty rating is particularly significant for large continuous-duty industrial applications, while the 560 kW Heavy Duty rating provides a reference for more demanding load conditions.

The physical installation should receive the same level of attention as the electrical specification.

The 600 mm depth needs to be incorporated into cabinet planning, while the approximate 1,246 kg weight class means that transportation, floor loading and lifting must be planned in advance.

Exact overall height and width should be taken from the final mechanical drawing for the actual supplied configuration.

For applications requiring local operator access, the 20G11BC1K2JN2NNNNN is a useful alternative.

For installations where a higher-protection local operator interface is preferred, the 20G11BC1K2JN4NNNNN is another closely related configuration.

For lower motor-current requirements, the 20G11BC1K1, 20G11BC1K0 and 20G11BC910 families provide a logical progression downward.

For larger motors, the 20G11BC1K4, 20G11BC1K5 and higher-capacity configurations provide a path toward greater current capacity.

Overall, the 20G11BC1K2JN0NNNNN is best described as a high-power, Frame 9, 400 VAC industrial variable-frequency drive with 1,175 A output capability, 710 kW Normal Duty capacity, 560 kW Heavy Duty capacity, 600 mm MCC-style construction, forced-air cooling, Ethernet/IP connectivity and a no-HIM configuration.

For centralized industrial automation systems, especially those involving large pumps, fans, blowers, conveyors and other high-power motor loads, it provides a strong combination of electrical capacity, automation connectivity and installation flexibility.