Company Information
E-mail		[email protected]
Mobile		+8615980777398
Whatsapp		+8615980777398
WeChat		15980777398

Allen-Bradley 20G11BC1K2AN2NNNNN — Detailed Technical Specifications, Product Introduction, Applications, Advantages and Recommended Models

1. Product Overview

The 20G11BC1K2AN2NNNNN is a high-power PowerFlex 755 AC Packaged Drive designed for large industrial motor-control applications.

It belongs to the Allen-Bradley PowerFlex 755 family and is intended for large three-phase AC motors where high output current, high power capacity, centralized automation and reliable variable-speed control are required.

This particular configuration is a Frame 9, air-cooled, 400 V class drive with an output current rating of 1,175 A. Its published ratings include approximately 710 kW Normal Duty and 560 kW Heavy Duty, while the corresponding PowerFlex 755 rating family reaches approximately 800 kW in Low Duty for this size.

The product uses a 600 mm deep MCC-style enclosure with an IP20 / Type 1 configuration. It has an AC input with precharge, an EMC filter, no internal dynamic-braking transistor, and the AN2 configuration includes a local enhanced operator interface arrangement.

One important purchasing point is that the exact 20G11BC1K2AN2NNNNN catalog number is a discontinued configuration. The catalog listing identifies 20G11BC1K2JN2NNNNN as its direct replacement. Therefore, the AN2 version remains highly relevant when identifying existing equipment, checking spare units or matching older installations, while the replacement model should be considered for new procurement.

2. Brand and Series

Item	Specification
Brand	Allen-Bradley
Product family	PowerFlex
Series	PowerFlex 755
Product type	AC Packaged Drive
Model	20G11BC1K2AN2NNNNN
Drive type	High-Power AC Variable Frequency Drive
Cooling	Air cooled
Frame	Frame 9
Voltage class	400 V AC
Input	Three-phase AC
Output current	1,175 A
Low Duty class	Approximately 800 kW
Normal Duty	710 kW
Heavy Duty	560 kW
Enclosure	IP20 / Type 1
Cabinet style	600 mm Deep MCC Style
Input arrangement	AC Input with Precharge
EMC	EMC Filter
Dynamic braking	None
Operator interface	AN2 configuration
Product status	Discontinued
Direct replacement	20G11BC1K2JN2NNNNN

The PowerFlex 755 series is intended for demanding industrial motor-control applications and covers a very wide range of motor sizes.

The 20G11BC1K2AN2NNNNN sits near the high-power end of the 400 V class and is therefore more commonly associated with major plant equipment than with ordinary machine-level motors.

3. Main Technical Parameters

Parameter	Specification
Model	20G11BC1K2AN2NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product type	Air-Cooled 755 AC Packaged Drive
Input voltage	380–480 VAC class
Nominal voltage	400 VAC
Input phase	3 phase
Input frequency	50/60 Hz class
Output phase	3 phase
Output current	1,175 A
Low Duty rating	Approximately 800 kW
Normal Duty rating	710 kW
Heavy Duty rating	560 kW
Frame size	Frame 9
Cooling	Air cooled
Enclosure	IP20 / Type 1
Cabinet style	600 mm Deep MCC Style
Input type	AC Input with Precharge
DC terminals	Available within the drive architecture
EMC filtering	EMC Filter
CM configuration	AN2 catalog configuration
Dynamic braking transistor	None
Operator interface	AN2 configuration
Communication	PowerFlex 755 network/control architecture
Mounting	Large industrial packaged configuration
Depth	600 mm
Overall dimensions	Frame 9 MCC configuration; exact height and width depend on the final mechanical arrangement
Weight (kg)	Approximately 1,246 kg
Product status	Discontinued
Replacement	20G11BC1K2JN2NNNNN

The 600 mm depth is a defined mechanical characteristic of this product configuration.

The overall height and width should not be guessed from the catalog number because large packaged Frame 9 equipment can be arranged differently depending on the final enclosure and installation configuration.

For engineering drawings, cabinet layout and transportation planning, the final mechanical drawing should always take precedence over a general catalog description.

4. Power Rating

The power rating is one of the most important characteristics of this drive.

Duty	Power Rating
Low Duty	Approximately 800 kW
Normal Duty	710 kW
Heavy Duty	560 kW

The different duty classifications exist because different machines place different thermal and overload demands on a drive.

A large centrifugal pump, for example, normally has a different torque characteristic from a crusher.

A fan has a different load profile from a conveyor.

A high-inertia conveyor may require substantial acceleration torque, while a centrifugal pump may spend most of its operating time at a relatively stable speed.

For that reason, the motor should be selected by considering current, torque, overload, acceleration, deceleration and operating cycle, rather than simply comparing motor kW with drive kW.

5. 1,175 A Output Current

The 1,175 A output current rating makes this a genuinely high-power industrial drive.

This rating allows the drive to control large motors used in major production systems.

Typical equipment can include:

• Large water pumps.
• Process pumps.
• Cooling-water pumps.
• Large industrial fans.
• High-capacity blowers.
• Long conveyors.
• Mining conveyors.
• Crushers.
• Cement-process machinery.
• Large compressors.
• Heavy material-handling systems.
• Large ventilation systems.

A current rating of this magnitude also means that electrical installation details become extremely important.

Cable selection, busbar arrangements, protection, grounding, ventilation and cabinet access all need to be designed around the actual installation.

6. 400 V Class

The 20G11BC1K2AN2NNNNN belongs to the 400 V AC class.

This makes it suitable for industrial three-phase motor systems commonly found in large manufacturing plants, processing facilities, water facilities, mining installations and infrastructure projects.

The drive takes the incoming AC power and produces controlled variable-frequency output for the motor.

By controlling output frequency and voltage, the drive can regulate motor speed and torque according to the process requirement.

This is especially useful when a machine does not need to operate at full speed all the time.

7. Frame 9 Architecture

The drive uses a Frame 9 architecture.

Frame 9 is associated with large-power equipment and requires substantially more physical installation space than compact wall-mounted VFDs.

The large frame accommodates the power components, control equipment, cooling system, high-current connections and other components required for this class of drive.

As a result, this product should be treated as part of an industrial electrical lineup rather than as a small standalone drive.

The installation should be planned before delivery, particularly where the electrical room has limited access.

8. 600 mm Deep MCC-Style Construction

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

This is important when designing the electrical room, MCC lineup or drive cabinet arrangement.

The installation plan should account for:

• Cabinet depth.
• Cabinet height.
• Cabinet width.
• Front access.
• Cable entry.
• Cable bending radius.
• Maintenance clearance.
• Cooling airflow.
• Floor loading.
• Transportation access.
• Lifting equipment.

The 600 mm depth is the clearly defined dimension available for this configuration, while the exact overall height and width should be confirmed against the applicable mechanical drawing.

9. Dimensions and Weight

For a drive of this power level, mechanical information is just as important as electrical information.

Mechanical Parameter	Specification
Model	20G11BC1K2AN2NNNNN
Frame	Frame 9
Cabinet style	MCC style
Cabinet depth	600 mm
Enclosure	IP20 / Type 1
Cooling	Air cooled
Mounting	Industrial packaged / floor-mounted configuration
Overall height	Configuration dependent
Overall width	Configuration dependent
Overall depth	600 mm class
Weight (kg)	Approximately 1,246 kg
Approximate metric weight	Approximately 1.25 metric tons

The approximate 1,246 kg weight is significant when planning transportation and installation.

A unit in this weight class may require specialized handling equipment.

Before installation, the site team should verify the actual shipping weight on the equipment documentation because packaging, accessories and final enclosure arrangements can affect the delivered weight.

10. Product Introduction

The 20G11BC1K2AN2NNNNN is designed to provide variable-speed control for very large industrial AC motors.

Its main role is to regulate motor speed and torque while allowing the motor to be integrated into a larger industrial automation system.

The drive is particularly appropriate for applications where fixed-speed operation would provide less process flexibility.

For example, a pump may need to provide different flow rates during different production stages.

A fan may need to maintain different airflow levels.

A conveyor may need different operating speeds depending on material throughput.

A variable frequency drive allows the motor to respond to those process requirements.

11. AN2 Configuration

The AN2 section of the catalog number distinguishes this configuration from other PowerFlex 755 variants.

The important practical difference is the operator-interface arrangement.

The AN2 configuration is intended for installations where a local enhanced operator interface is part of the drive configuration.

That can be useful during:

• Commissioning.
• Local troubleshooting.
• Parameter adjustment.
• Maintenance.
• Motor testing.
• Fault investigation.

Compared with a no-HIM configuration, an operator-interface-equipped drive can make local service work more convenient.

12. Local Operator Interface

A local operator interface can be valuable on large equipment.

Maintenance personnel can use it to inspect drive status without necessarily depending on a remote PLC screen.

Depending on the system configuration, local information can include:

• Output frequency.
• Motor speed.
• Output current.
• Drive status.
• Fault status.
• Alarm conditions.
• Parameter information.
• Operating commands.

This can reduce troubleshooting time when maintenance staff are working directly at the drive cabinet.

13. EMC Filtering

The model is configured with an EMC filter.

Large variable frequency drives use high-speed switching devices, and switching can create electrical noise.

EMC filtering helps control conducted interference within an appropriately designed installation.

However, EMC performance does not depend on the drive alone.

The complete installation should consider:

• Motor cable type.
• Cable length.
• Cable shielding.
• Grounding.
• Cabinet arrangement.
• Control wiring.
• Communication wiring.
• Physical separation between power and control cables.
• Proper termination.

The filter is therefore one component of a complete EMC strategy.

14. Dynamic Braking

The catalog configuration specifies no internal dynamic-braking transistor.

This is not necessarily a disadvantage.

Many large pump and fan applications do not require aggressive braking.

However, high-inertia equipment can behave differently.

Applications such as conveyors, centrifuges, hoists and large rotating machines may require detailed braking analysis.

Where rapid deceleration is required, engineers should evaluate the load inertia, speed, deceleration time and regenerative energy before finalizing the braking arrangement.

15. AC Input with Precharge

The drive uses an AC input with precharge configuration.

Precharge is particularly important for large drives because the DC bus contains substantial energy-storage components.

During energization, the precharge system manages the initial charging process.

For a 1,175 A-class drive, the incoming electrical system must be designed carefully around:

• Short-circuit conditions.
• Input protection.
• Isolation.
• Grounding.
• Coordination.
• Cable sizing.
• Power quality.
• Maintenance access.

16. Typical Industrial Applications

16.1 Large Water Pumps

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

Possible uses include:

• Raw-water intake.
• Water transfer.
• Cooling-water circulation.
• Industrial water supply.
• Process-water systems.
• Wastewater treatment.
• Irrigation infrastructure.

Variable-speed control allows the pump to respond to actual flow and pressure requirements.

16.2 Process Pumps

Large industrial plants frequently use pumps that must operate at different speeds.

The drive can adjust motor speed according to:

• Flow demand.
• Pressure.
• Tank level.
• Process temperature.
• Production rate.

This can provide better process control than simply running the motor at a fixed speed.

16.3 Cooling-Water Systems

Cooling-water systems often contain large pumps and fans.

The drive can regulate flow according to actual cooling requirements.

During periods of lower production, the motor may not need to operate at full speed.

During periods of high production, higher speed can be commanded.

This allows the motor-control system to respond to plant conditions.

17. Large Fans

Large fans can require hundreds of kilowatts.

Typical examples include:

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

The PowerFlex 755 platform is well suited to applications where fan speed needs to be adjusted continuously.

18. Blower Applications

Large blowers can also use this type of drive.

Typical applications include:

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

Variable-speed control allows the blower to provide only the required amount of airflow.

This can improve process control and may reduce energy consumption compared with continuously operating a fixed-speed motor at maximum output.

19. Conveyor Systems

Large conveyors can place substantial demands on a motor-control system.

A long conveyor may contain:

• Heavy belts.
• Large rollers.
• Gearboxes.
• Couplings.
• Heavy material.
• High rotational inertia.

Controlled acceleration can reduce mechanical shock.

Potential benefits include:

• Smoother starting.
• Reduced belt stress.
• Reduced gearbox shock.
• Reduced coupling stress.
• Improved material handling.
• Adjustable production speed.

20. Mining Applications

Mining equipment is often a strong candidate for high-power variable frequency drives.

Potential applications include:

• Long conveyors.
• Mine ventilation.
• Dewatering pumps.
• Crushers.
• Material handling.
• Ore-processing equipment.
• Large fans.

The 1,175 A output capability provides substantial capacity for large mining motors.

21. Cement Industry Applications

Large cement facilities contain many high-power motor systems.

The drive can be considered for:

• Crushers.
• Fans.
• Blowers.
• Conveyors.
• Pumps.
• Material-handling systems.
• Process ventilation.
• Large rotating machinery.

The ability to integrate the drive with centralized automation is useful in large plants where many motors need to be monitored from a central control room.

22. Compressor Applications

Large industrial compressors can require very high motor power.

Potential applications include:

• Process compressors.
• Industrial air compressors.
• Cooling compressors.
• Gas-handling equipment.
• Plant utility compressors.

The suitability of the drive depends on the compressor’s torque characteristics, speed range, minimum operating speed and acceleration requirements.

23. Industrial HVAC and Ventilation

Large industrial buildings can have substantial ventilation requirements.

The drive can regulate:

• Fan speed.
• Airflow.
• Exhaust volume.
• Cooling airflow.
• Process ventilation.

Rather than operating continuously at full speed, the motor can respond to actual demand.

24. Advantages of the 20G11BC1K2AN2NNNNN

Feature	Main Advantage
1,175 A output	Suitable for very large motors
710 kW ND	Strong capacity for normal-duty applications
560 kW HD	Suitable for demanding loads within the Heavy Duty rating
800 kW LD class	Strong capability for appropriate variable-torque applications
Frame 9	Designed for large industrial installations
400 V class	Suitable for common industrial motor systems
Air cooled	Practical cooling architecture for industrial rooms
600 mm MCC depth	Suitable for industrial MCC-style lineups
EMC filter	Supports electrical-noise control
AC precharge	Appropriate for high-power input architecture
Local operator interface	Convenient for commissioning and maintenance
PowerFlex 755 platform	Broad industrial control capability
Network integration	Suitable for centralized automation

The strongest advantage of this model is its combination of very high current capacity and industrial automation capability.

It is not designed to compete with compact machine drives.

Its purpose is to control large motors that are central to the production process.

25. Energy-Saving Potential

Variable-speed control can provide substantial energy benefits in suitable applications.

This is especially relevant to:

• Pumps.
• Fans.
• Blowers.

For centrifugal equipment, power demand can fall significantly as operating speed is reduced.

However, actual energy savings depend on the complete system.

Important factors include:

• Motor efficiency.
• Pump or fan efficiency.
• Operating hours.
• Speed profile.
• Process demand.
• Mechanical transmission efficiency.
• Control method.

Therefore, energy savings should be calculated from actual operating data rather than assumed simply because a VFD is installed.

26. Process-Control Advantages

The drive can provide more than basic speed adjustment.

In a properly engineered system, the drive can participate in:

• Speed control.
• Torque control.
• Acceleration control.
• Deceleration control.
• Process regulation.
• Fault reporting.
• Alarm monitoring.
• Remote control.
• Centralized diagnostics.

This makes it an important component of a larger automation architecture.

27. Maintenance Advantages of the AN2 Configuration

A local operator interface can make maintenance more practical.

Technicians working directly at the cabinet can inspect drive information without relying exclusively on a remote control-room display.

This can be particularly useful during:

• Initial commissioning.
• Motor rotation tests.
• Parameter verification.
• Fault diagnosis.
• Preventive maintenance.
• Troubleshooting.

For large drives, having convenient local access can reduce the time required to identify basic operating problems.

28. Cooling and Thermal Management

The drive is air cooled.

At this power level, thermal management is critical.

High-power switching components generate heat during operation.

The installation therefore needs:

• Adequate airflow.
• Clean ventilation paths.
• Proper cabinet arrangement.
• Suitable ambient conditions.
• Functional cooling fans.
• Regular inspection.

Dust accumulation can restrict airflow and reduce cooling performance.

In harsh environments, the maintenance plan should pay particular attention to air quality and cabinet cleanliness.

29. Installation Environment

The product uses an IP20 / Type 1 enclosure arrangement.

It should therefore be installed inside an appropriate electrical environment.

The installation should provide protection from:

• Direct water.
• Excessive dust.
• Corrosive contamination.
• Uncontrolled outdoor exposure.

Adequate ventilation and service access are also required.

The drive should not be treated as a weatherproof standalone cabinet.

30. Transportation and Handling

The approximate equipment weight is around 1,246 kg.

That is roughly 1.25 metric tons.

This should be taken seriously during project planning.

Before delivery, the site should check:

• Floor loading.
• Door opening dimensions.
• Elevator capacity.
• Transport route.
• Forklift capacity.
• Crane capacity.
• Lifting points.
• Installation clearance.
• Final cabinet position.

Moving a Frame 9 high-power drive is very different from moving a small wall-mounted VFD.

31. Motor Selection

Motor selection should be based primarily on current and application duty rather than kW alone.

Motor Parameter	Importance
Motor voltage	Must match drive voltage class
Motor current	Critical sizing parameter
Motor power	Determines approximate capacity
Motor frequency	Establishes base operating point
Motor speed	Defines operating range
Motor torque	Determines load suitability
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	Important for installation design
Motor insulation	Important for VFD operation

A 710 kW motor, for example, should not automatically be paired with the drive simply because the numerical power ratings appear similar.

The actual motor full-load current and duty requirement should be checked first.

32. Commissioning Procedure

A practical commissioning process should include:

1. Verify the complete catalog number.
2. Confirm the incoming voltage.
3. Confirm the motor nameplate voltage.
4. Confirm the motor full-load current.
5. Confirm motor power.
6. Confirm motor frequency.
7. Enter motor data.
8. Select the appropriate motor-control mode.
9. Configure the speed reference.
10. Check motor direction.
11. Perform a low-speed test.
12. Test acceleration.
13. Test deceleration.
14. Monitor output current.
15. Check motor temperature.
16. Check drive temperature.
17. Verify operator-interface operation.
18. Configure the industrial network.
19. Test PLC commands.
20. Test drive fault handling.
21. Test alarm handling.
22. Save the final parameters.

A parameter backup should be maintained after commissioning.

33. Maintenance Recommendations

For a drive of this size, maintenance should be systematic.

Recommended checks include:

• Cooling fan condition.
• Airflow.
• Cabinet cleanliness.
• Power connections.
• Ground connections.
• Motor cable termination.
• Control wiring.
• Network connections.
• Operator interface.
• Drive fault history.
• Alarm history.
• Operating temperature.
• Parameter backup.
• Cabinet ventilation.

Preventive maintenance is particularly important where the drive controls a critical production motor.

34. Electrical Design Considerations

The 1,175 A output rating means that the electrical installation needs careful engineering.

Important considerations include:

Input Protection

Incoming protection should be coordinated with the drive and the available fault current.

Motor Cable

Motor conductors should be sized according to current, installation method, ambient conditions and applicable electrical standards.

Grounding

The drive, motor and cabinet should have a properly engineered grounding system.

EMC

Power and control wiring should be arranged to reduce interference.

Short-Circuit Protection

The complete installation should be evaluated for available fault current and protective coordination.

Maintenance Access

The electrical room should provide sufficient space for inspection and service.

35. Same-Series Recommended Models

The following models are useful alternatives or closely related selections within the PowerFlex 755 family.

Recommended Model	Series	Current / Power Class	Frame	Typical Use	Dimensions	Weight (kg)
20G11BC910AN0NNNNN	PowerFlex 755	~910 A class	9	Lower-capacity large motors	600 mm deep MCC style	~1,250
20G11BC1K0AN0NNNNN	PowerFlex 755	~1,040 A class	9	Large pumps, fans, conveyors	600 mm deep MCC style	~1,250
20G11BC1K1AN0NNNNN	PowerFlex 755	~1,090 A class	9	Large industrial motors	600 mm deep MCC style	~1,250
20G11BC1K2JN2NNNNN	PowerFlex 755	1,175 A / 710 kW ND / 560 kW HD	9	Direct replacement configuration	600 mm deep MCC style	~1,246
20G11BC1K5AN0NNNNN	PowerFlex 755	Higher-capacity class	9	Larger high-power applications	600 mm deep MCC style	Configuration dependent

The most important model in this table is 20G11BC1K2JN2NNNNN, because it is the direct replacement identified for the discontinued AN2 model. The active replacement retains the 1,175 A, 710 kW ND and 560 kW HD class and uses the same 600 mm Frame 9 architecture.

36. Related Model — 20G11BC1K2JN2NNNNN

The 20G11BC1K2JN2NNNNN is the most important replacement to consider.

Parameter	Specification
Model	20G11BC1K2JN2NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Voltage	400 VAC
Output current	1,175 A
Low Duty	Approximately 800 kW
Normal Duty	710 kW
Heavy Duty	560 kW
Frame	9
Size	600 mm
Cooling	Air cooled
Enclosure	IP20 / Type 1
Dynamic braking	None
Input	AC with precharge
Filtering	Filtered
CM jumper	Installed
Operator interface	AN2 configuration
Dimensions	Frame 9; 600 mm deep MCC style
Weight (kg)	Approximately 1,246 kg class

This is the first model to investigate when an existing 20G11BC1K2AN2NNNNN needs to be replaced.

The electrical rating is closely matched, but the catalog configuration is not identical, so the complete installation requirements should be reviewed before substitution.

37. Related Model — 20G11BC1K1 Series

The 20G11BC1K1 configuration is slightly smaller in current capacity.

Parameter	Specification
Model	20G11BC1K1AN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Output current	Approximately 1,090 A
Low Duty	Approximately 710 kW
Normal Duty	Approximately 630 kW
Heavy Duty	Approximately 500 kW
Frame	9
Cooling	Air cooled
Cabinet	600 mm Deep MCC
Enclosure	IP20 / Type 1
Dimensions	Frame 9; 600 mm depth
Weight (kg)	Approximately 1,250 kg class

This is a practical choice where the motor current is below the 1,175 A requirement.

38. Related Model — 20G11BC1K0 Series

The 20G11BC1K0 family provides another step down in current and power.

Parameter	Specification
Model	20G11BC1K0AN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Output current	Approximately 1,040 A
Low 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
Dimensions	Frame 9; 600 mm depth
Weight (kg)	Approximately 1,250 kg class

This option can be attractive when the target drive is oversized for the actual motor.

39. Related Model — 20G11BC910 Series

The 910 A class is useful when the motor requirement is further reduced.

Parameter	Specification
Model	20G11BC910AN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Current	Approximately 910 A
Low 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
Dimensions	Frame 9; 600 mm depth
Weight (kg)	Approximately 1,250 kg class

This is useful for applications where a 1,175 A drive would provide more capacity than necessary.

40. Related Model — 20G11BC1K5 Series

The 20G11BC1K5 represents a higher-power direction within the same PowerFlex 755 family.

Parameter	Specification
Model	20G11BC1K5AN0NNNNN
Series	PowerFlex 755
Voltage	400 VAC class
Current	Higher than 1,175 A class
Low 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
Dimensions	Frame 9; approximately 600 mm depth
Weight (kg)	Configuration dependent; approximately 1,250 kg class

This model should be considered only where the motor and process actually require the additional capacity.

41. Five Same-Brand Popular Model Recommendations

For a broader product selection, the following models cover different PowerFlex platforms and power levels.

Model	Series	Voltage Class	Current / Power Class	Typical Application	Dimensions	Weight (kg)
20G11BC1K1JN0NNNNN	PowerFlex 755	400 VAC	~1,090 A / 710 kW LD class	Large pumps and fans	600 mm deep MCC	~1,250
20G11BC1K0JN0NNNNN	PowerFlex 755	400 VAC	~1,040 A class	Large industrial motors	600 mm deep MCC	~1,250
20G11BC910JN0NNNNN	PowerFlex 755	400 VAC	~910 A class	Pumps, fans, conveyors	600 mm deep MCC	~1,250
20F1ANC456JA0NNNNN	PowerFlex 753	400 VAC	456 A class	Large industrial machines	Frame 7 configuration	Configuration dependent
25B-D030N114	PowerFlex 525	480 VAC class	~30 A class	Machine-level motors	Compact drive format	Configuration dependent

The PowerFlex 755 models in the first three rows are the closest alternatives to the target drive.

The PowerFlex 753 provides a different drive architecture for applications that do not require the same high-power Frame 9 configuration.

The PowerFlex 525 is considerably smaller and is more appropriate for machine-level applications rather than the hundreds-of-kilowatts range.

The PowerFlex 753 and 755 families cover substantially different applications and capacity levels, so they should not be treated as direct one-for-one replacements merely because they share the same general VFD category.

42. Popular PowerFlex 753 Alternative

The 20F1ANC456JA0NNNNN is a useful comparison when the application does not require the extremely high current capacity of the target drive.

Parameter	Specification
Model	20F1ANC456JA0NNNNN
Series	PowerFlex 753
Voltage	400 VAC class
Output current	456 A
Normal-duty power class	Approximately 250 kW
Frame	7
Cooling	Air cooled
Enclosure	Configuration dependent
Application	Pumps, fans, conveyors and general industrial machinery
Dimensions	Frame 7; configuration dependent
Weight (kg)	Configuration dependent

This model is much smaller than the 1,175 A Frame 9 drive and therefore makes sense when the motor is significantly smaller.

43. Popular PowerFlex 525 Alternative

The 25B-D030N114 belongs to a much smaller drive category.

Parameter	Specification
Model	25B-D030N114
Series	PowerFlex 525
Voltage class	480 VAC class
Current class	Approximately 30 A
Product type	Compact AC drive
Typical use	Machine-level motor control
Cooling	Air cooled
Mounting	Compact enclosure / panel mounting
Dimensions	Compact frame; configuration dependent
Weight (kg)	Configuration dependent

This is not a direct substitute for the 20G11BC1K2AN2NNNNN.

It is included as a same-brand popular option because many industrial plants use smaller PowerFlex drives alongside high-power PowerFlex 755 systems.

44. Model Comparison

Model	Series	Current Class	Power Class	Frame	Main Application	Dimensions	Weight (kg)
20G11BC910JN0NNNNN	PowerFlex 755	~910 A	~560/500/400 kW class	9	Large pumps/fans	600 mm deep MCC	~1,250
20G11BC1K0JN0NNNNN	PowerFlex 755	~1,040 A	~630/560/500 kW class	9	Large industrial motors	600 mm deep MCC	~1,250
20G11BC1K1JN0NNNNN	PowerFlex 755	~1,090 A	~710/630/500 kW class	9	Large pumps/conveyors	600 mm deep MCC	~1,250
20G11BC1K2AN2NNNNN	PowerFlex 755	1,175 A	~800/710/560 kW	9	Very large industrial motors	600 mm deep MCC	~1,246
20G11BC1K2JN2NNNNN	PowerFlex 755	1,175 A	~800/710/560 kW	9	Replacement configuration	600 mm deep MCC	~1,246
20F1ANC456JA0NNNNN	PowerFlex 753	456 A	~250 kW ND class	7	Large general industrial	Configuration dependent	Configuration dependent
25B-D030N114	PowerFlex 525	~30 A	Small/medium class	Compact	Machine-level equipment	Compact	Configuration dependent

The target 20G11BC1K2AN2NNNNN sits at the high end of this comparison.

Its 1,175 A rating and Frame 9 construction make it suitable for major plant motors rather than small machine drives.

45. Why Choose the 20G11BC1K2AN2NNNNN?

There are several reasons this configuration can be attractive.

First, the 1,175 A output capability provides enough capacity for very large motors.

Second, the 710 kW Normal Duty rating gives the drive substantial continuous operating capability.

Third, the 560 kW Heavy Duty rating provides a strong option for more demanding load profiles within the applicable rating.

Fourth, the Frame 9 architecture provides the physical and electrical infrastructure required for high-power applications.

Fifth, the PowerFlex 755 platform provides integration capabilities suitable for centralized industrial automation.

Sixth, the AN2 operator-interface configuration provides a useful local interface for commissioning and maintenance.

Finally, the 600 mm deep MCC-style design makes the drive suitable for integration into large industrial electrical lineups.

46. Important Consideration: Discontinued Status

The exact catalog number 20G11BC1K2AN2NNNNN is a discontinued configuration.

The listed discontinuation date is June 30, 2024.

The identified direct replacement is 20G11BC1K2JN2NNNNN.

This does not make the old model irrelevant.

It can still be important for:

• Existing equipment identification.
• Maintenance.
• Spare-parts planning.
• Replacement of installed drives.
• System documentation.
• Equipment inventory.
• Repair projects.

For a new project, however, the replacement model should normally be evaluated first.

47. Existing-Equipment Replacement Considerations

If the 20G11BC1K2AN2NNNNN is being used as an existing drive, replacement should not be based only on the current rating.

The following should be compared:

Item	Existing Drive	Replacement Check
Voltage	400 VAC class	Confirm equal class
Current	1,175 A	Confirm equal or suitable
ND rating	710 kW	Confirm
HD rating	560 kW	Confirm
Frame	9	Confirm
Cabinet depth	600 mm	Confirm
Cooling	Air cooled	Confirm
EMC configuration	EMC filter	Confirm
CM configuration	AN2-specific	Check replacement
Operator interface	AN2	Confirm replacement interface
Braking	None	Confirm application requirement
Communication	Plant-specific	Confirm network architecture
Mechanical dimensions	Frame 9	Verify exact drawing
Weight	~1,246 kg	Verify shipping configuration

The complete catalog number should always be compared before a replacement is ordered.

48. Practical Selection Guide

Requirement	Recommended Choice
Need approximately 900 A	20G11BC910 family
Need approximately 1,040 A	20G11BC1K0 family
Need approximately 1,090 A	20G11BC1K1 family
Need approximately 1,175 A	20G11BC1K2 family
Need a direct replacement for target model	20G11BC1K2JN2NNNNN
Need higher power	20G11BC1K5 family
Need a smaller high-power platform	PowerFlex 753
Need a compact machine drive	PowerFlex 525

This makes the PowerFlex 755 family relatively straightforward to scale according to motor current and application requirements.

49. Overall Technical Advantages

The main advantages of the 20G11BC1K2AN2NNNNN can be summarized as:

Very high output current: 1,175 A provides substantial motor-control capacity.

High normal-duty power: 710 kW supports large continuous industrial loads.

Heavy-duty capability: 560 kW provides a significant capacity level for demanding applications.

Large-frame architecture: Frame 9 is designed specifically for high-power installations.

Industrial cabinet construction: The 600 mm MCC-style configuration is suitable for large electrical lineups.

Air cooling: Practical for large industrial electrical rooms with adequate ventilation.

EMC filtering: Supports controlled electrical-noise performance when combined with proper installation practices.

Local operator interface: Useful for commissioning and maintenance.

PowerFlex 755 platform: Suitable for centralized automation and sophisticated motor-control applications.

Wide application range: Pumps, fans, blowers, conveyors, mining machinery, cement equipment and other large motor loads can be considered.

50. Final Technical Specification Table

Category	Final Specification
Model	20G11BC1K2AN2NNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product type	Air-Cooled 755 AC Packaged Drive
Lifecycle	Discontinued
Direct replacement	20G11BC1K2JN2NNNNN
Voltage	400 VAC class
Input phase	3 phase
Output current	1,175 A
Low 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
Input	AC Input with Precharge
EMC	EMC Filter
Dynamic braking	None
Operator interface	AN2 configuration
Depth	600 mm
Overall dimensions	Frame 9 MCC configuration; exact height and width configuration dependent
Weight (kg)	Approximately 1,246 kg
Typical applications	Pumps, fans, blowers, conveyors, compressors, mining, cement, water treatment
Primary advantage	High-current, high-power industrial motor control

51. Final Conclusion

The 20G11BC1K2AN2NNNNN is a large-capacity Allen-Bradley PowerFlex 755 AC Packaged Drive intended for demanding industrial motor-control applications.

Its 1,175 A output current, 710 kW Normal Duty rating, 560 kW Heavy Duty rating and approximately 800 kW Low Duty class place it firmly in the high-power segment of the PowerFlex 755 family.

The Frame 9 architecture and 600 mm deep MCC-style construction make it appropriate for large industrial electrical rooms and motor-control lineups.

Its air-cooled construction provides a practical approach to thermal management when the installation has sufficient ventilation.

The EMC filter, AC input with precharge, high-current power section and PowerFlex 755 control architecture make the drive suitable for large-scale motor applications where reliable speed control and centralized automation are required.

The AN2 configuration is particularly useful when local operator access is valuable during commissioning, troubleshooting and maintenance.

The drive is well suited to applications such as large pumps, process pumps, cooling-water systems, industrial fans, blowers, conveyors, mining machinery, cement equipment and other large rotating machines.

At approximately 1,246 kg, it is also a substantial piece of equipment from a mechanical standpoint. Transportation, floor loading, lifting and installation access should therefore be planned before the equipment is delivered.

The most important point when dealing with this exact catalog number is its lifecycle status.

The 20G11BC1K2AN2NNNNN is discontinued, and the identified direct replacement is 20G11BC1K2JN2NNNNN.

For an existing installation, the original model remains important for equipment identification and maintenance.

For a new installation, the replacement configuration should be evaluated first, while checking that the electrical, mechanical, operator-interface, EMC and control-network requirements match the existing application.

From a practical engineering perspective, the 20G11BC1K2AN2NNNNN is best regarded as a high-power, Frame 9 industrial drive for applications where motor current can approach 1,175 A and where the controlled motor is an important part of the production process.

Its strongest characteristics are its very high current capacity, high power capability, large industrial construction, PowerFlex 755 platform, local operator interface, EMC-filtered configuration and suitability for centralized industrial motor control.

For lower-power requirements, the 20G11BC910, 20G11BC1K0 and 20G11BC1K1 families are logical alternatives.

For a replacement of the same basic 1,175 A class, 20G11BC1K2JN2NNNNN is the key model to evaluate.

For applications requiring even greater capacity, a higher-rated PowerFlex 755 Frame 9 configuration can be considered.

Overall, the 20G11BC1K2AN2NNNNN is a substantial industrial drive designed for substantial industrial machinery. It is best suited to projects where high motor power, dependable variable-speed operation, centralized control and long-term industrial service are more important than compact size or low installation complexity.