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1. Product Overview

The Allen-Bradley 20G1G3F650MNANNNNN is a high-power PowerFlex 755 air-cooled AC packaged drive designed for large three-phase industrial motors and demanding variable-speed applications.

It belongs to the large-frame PowerFlex 755 range and is identified as an air-cooled packaged AC drive. The complete catalog number is important because different suffixes and configuration codes within the same power class can represent different electrical or mechanical arrangements.

The 20G1G3F650MNANNNNN is positioned in the 650 A class of the 690 V PowerFlex 755 range. For this rating class, the associated duty ratings are approximately 710 kW / 735 A for Light Duty, 630 kW / 650 A for Normal Duty, and 560 kW / 565 A for Heavy Duty.

This makes the drive suitable for large industrial equipment where a standard compact variable-frequency drive is not sufficient. Typical applications include large pumps, fans, compressors, conveyors, crushers, mills, process machinery, and other high-power rotating equipment.

The floor-mounted packaged construction is intended for industrial electrical rooms, drive rooms, MCC areas, and other dedicated equipment spaces where adequate ventilation, cable routing, maintenance clearance, and lifting access can be provided.

2. Brand and Product Series

Item	Description
Model	20G1G3F650MNANNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	Air-Cooled AC Packaged Drive
Drive Category	High-Power Industrial AC Drive
Cooling	Forced-Air / Air-Cooled
Installation	Floor-Mounted
Voltage Class	690 V AC
Phase	Three Phase
Main Function	Variable-Speed AC Motor Control
Typical Installation	Industrial Electrical Room / Drive Room
Typical Load	Large Industrial Motors
Construction	Packaged Cabinet-Type Drive

The catalog number 20G1G3F650MNANNNNN is specifically identified as an Air Cooled 755 AC Packaged Drive, while the broader 20G1G3F650 family contains additional PowerFlex 755 configuration variants.

3. Main Technical Parameters

Parameter	Specification
Model	20G1G3F650MNANNNNN
Brand	Allen-Bradley
Series	PowerFlex 755
Product Type	Air-Cooled AC Packaged Drive
Input Voltage Class	690 V AC
Input Phase	3 Phase
Cooling Method	Forced Air
Installation	Floor Mount
Normal Duty Current	Approx. 650 A
Normal Duty Power	Approx. 630 kW
Light Duty Current	Approx. 735 A
Light Duty Power	Approx. 710 kW
Heavy Duty Current	Approx. 565 A
Heavy Duty Power	Approx. 560 kW
Enclosure Class	Type 1 / IP21 class for the corresponding 690 V large-frame configuration
Drive Construction	Packaged / Cabinet Type
Motor Type	Three-Phase AC Motor
Control	Variable Speed / Torque Control
Application Class	High-Power Industrial
Typical Load Type	Pump, Fan, Conveyor, Compressor, Process Machinery
Approx. Dimensions	Approx. 2300 × 1105 × 1400 mm H × W × D*
Approx. Weight	Approx. 430 kg and above, depending on configuration*
Installation Environment	Industrial Electrical Room / Drive Room
Typical Duty	Continuous Industrial Operation
Automation Integration	PLC / HMI / Industrial Control System

*The dimensions and weight shown here are engineering planning values rather than guaranteed nameplate dimensions. Large PowerFlex 755 packaged-drive assemblies can change in physical size and shipping weight according to the exact cabinet arrangement, options, incoming-power configuration, disconnect equipment, filtering, braking or other factory-installed equipment. The final mechanical drawing for the exact catalog configuration should be used for procurement, transportation, foundation loading, and installation.

4. Power Rating

The 20G1G3F650MNANNNNN is a very high-power drive and is intended for applications where motor power is measured in hundreds of kilowatts.

Its Normal Duty class is approximately 650 A / 630 kW.

The three principal duty ratings associated with this 650 A class are:

Duty	Current	Approx. Power
Light Duty	735 A	710 kW
Normal Duty	650 A	630 kW
Heavy Duty	565 A	560 kW

The duty rating is important because motor applications do not all place the same electrical and thermal demands on the drive. A large centrifugal pump may have a substantially different overload profile from a crusher, conveyor, mill, or heavy process machine.

For this reason, the motor should not be selected solely by comparing the nominal motor kW with the drive’s nominal kW. Motor current, duty cycle, overload requirements, starting torque, operating speed range, and load characteristics should all be considered.

5. Product Introduction

The 20G1G3F650MNANNNNN is designed to control the speed and torque of large three-phase AC motors.

A conventional fixed-speed motor installation normally operates the motor at the frequency and voltage supplied by the electrical system. A variable-frequency drive introduces controlled electrical power between the supply and the motor, allowing the motor operating speed to be adjusted according to the requirements of the machine.

This is particularly valuable in industrial processes where the load does not need to operate at full speed all the time.

For example, a large water pump may need different flow rates during different stages of a process. A ventilation fan may need to respond to pressure or temperature. A conveyor may need controlled acceleration before reaching production speed. A compressor may need to respond to changing process demand.

The drive therefore becomes part of the overall machine-control system rather than functioning simply as a motor starter.

The PowerFlex 755 platform is designed for large industrial motor-control applications, and the 20G1G3F650MNANNNNN extends this architecture into the high-power 690 V class.

6. 690 V Industrial Architecture

The 690 V class is particularly useful for large industrial motors.

As motor power increases, motor current becomes a major consideration in the design of power cables, switchgear, transformers, busbars, and other electrical equipment.

A higher motor voltage allows high-power systems to operate with a more manageable current level compared with an equivalent lower-voltage motor system.

This makes 690 V drives particularly appropriate for large industrial facilities where motors may have ratings of several hundred kilowatts.

Typical equipment in this range includes large pumps, process fans, compressors, conveyors, crushers, mills, and material-handling machinery.

7. Air-Cooled Design

The 20G1G3F650MNANNNNN is an air-cooled packaged drive.

At this power level, heat management is a major part of system design.

Power semiconductor devices, DC-bus components, capacitors, reactors, switching components, and other electrical parts generate heat during normal operation. Forced-air cooling moves this heat away from the internal power components.

The installation environment therefore has a direct effect on long-term drive reliability.

The electrical room should provide adequate ventilation and should be designed to handle the heat generated by the complete drive installation.

The ventilation path should be kept free from dust, oil mist, fibers, moisture, and other industrial contamination.

For mining, cement, paper, steel, chemical, and other heavy industrial environments, environmental conditions should be evaluated before final installation.

8. Floor-Mounted Packaged Construction

The 20G1G3F650MNANNNNN is a packaged drive rather than a small standalone wall-mounted inverter.

The floor-mounted format is appropriate for large electrical rooms where the drive can be installed alongside other power-distribution and control equipment.

A typical installation may include:

Incoming Power → Protection / Disconnect → AC Drive → Three-Phase Motor → Mechanical Load

The control side can simultaneously connect to a PLC, HMI, process controller, feedback device, or industrial communication network.

This arrangement allows the drive to be integrated into a larger production system while keeping the high-power electrical equipment in a controlled electrical area.

9. Main Control Functions

Typical functions associated with a high-power PowerFlex 755 installation include:

• Variable motor speed control
• Controlled acceleration
• Controlled deceleration
• Torque control
• Speed regulation
• Motor protection
• Fault monitoring
• Alarm handling
• Drive diagnostics
• Process control
• Feedback-based control
• PLC integration
• HMI integration
• Industrial network communication
• Operating-status monitoring

The exact functions available in a particular installation depend on the selected configuration, control architecture, feedback equipment, software, firmware, and application requirements.

10. Application — Large Pumps

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

The drive can regulate pump motor speed according to process pressure, flow, tank level, or another control variable.

Typical applications include:

• Raw-water pumping
• Water-transfer systems
• Booster pumping
• Cooling-water circulation
• Wastewater pumping
• Process-water systems
• Industrial circulation systems
• Large irrigation pumps

Variable-speed control can allow the pump to operate closer to the actual process requirement instead of continuously running at full speed.

11. Application — Large Fans

Industrial ventilation and process fans frequently use high-power motors.

The drive can control fan speed according to airflow, pressure, temperature, production conditions, or another process signal.

Typical applications include:

• Industrial ventilation
• Dust-extraction systems
• Process exhaust
• Combustion-air systems
• Cooling fans
• Tunnel ventilation
• Large building ventilation
• Furnace-related fans

The ability to vary fan speed can also simplify process regulation because airflow can be changed electrically rather than relying entirely on mechanical dampers.

12. Application — Compressors

Large compressors often require substantial motor power and can operate under changing process conditions.

A variable-speed drive can provide controlled acceleration and allow the compressor motor to operate at different speeds according to the process requirement.

Potential applications include:

• Industrial air compressors
• Process-gas systems
• Cooling systems
• Chemical processing
• Petrochemical processing
• Utility compressor systems

The final drive selection should take compressor torque characteristics, acceleration requirements, operating speed, motor data, and process-control requirements into account.

13. Application — Conveyors

The 20G1G3F650MNANNNNN is also suitable for large conveyor systems.

A conveyor carrying a heavy load can require considerable torque during starting.

Direct starting can result in a sudden application of mechanical torque to:

• Gearboxes
• Couplings
• Shafts
• Belts
• Rollers
• Mechanical structures

Controlled acceleration can allow the motor to increase speed gradually.

This is useful in mining, ports, bulk-material handling, cement plants, aggregate plants, steel plants, and other industries where long or heavily loaded conveyors are used.

14. Application — Crushers and Mills

Crushers and mills can impose demanding mechanical loads on motors.

These machines may require substantial starting torque and may experience changing load conditions during operation.

The drive can provide controlled motor operation while allowing the automation system to monitor operating status and respond to process conditions.

Applications can include:

• Rock crushers
• Ore crushers
• Aggregate crushers
• Grinding mills
• Raw-material mills
• Material-processing machinery
• Heavy-duty production equipment

15. Application — Mining

Mining installations frequently contain high-power motors.

The drive can be applied to:

• Mine conveyors
• Crushers
• Pumps
• Ventilation fans
• Dewatering systems
• Material-handling equipment
• Processing equipment
• Grinding equipment

The industrial electrical environment should be considered carefully in mining applications, particularly with regard to dust, temperature, ventilation, cable routing, maintenance access, and motor protection.

16. Application — Cement Plants

Cement production uses numerous high-power rotating machines.

The 20G1G3F650MNANNNNN can be considered for:

• Large process fans
• Raw-material systems
• Grinding equipment
• Crushers
• Material conveyors
• Dust-extraction systems
• Large pumps
• Auxiliary process machinery

Cement plants can have substantial dust loads, so the electrical room and drive cooling arrangement should be designed to prevent contamination of the drive’s cooling path.

17. Application — Steel and Metals

Steel and metal-processing facilities also contain numerous large motors.

Potential applications include:

• Cooling-water pumps
• Process fans
• Conveyors
• Material-handling systems
• Large auxiliary drives
• Production-line equipment
• Cooling systems
• Ventilation systems

Controlled acceleration and deceleration can be particularly useful where mechanical equipment contains heavy rotating components or high-inertia loads.

18. Application — Water and Wastewater

Water-treatment facilities often use large motors continuously.

The drive can be integrated into pumping stations and treatment facilities where flow requirements change throughout the day.

Typical equipment includes:

• Raw-water pumps
• Intake pumps
• Transfer pumps
• Booster pumps
• Sludge-handling equipment
• Aeration-related equipment
• Process-water pumps
• Cooling-water systems

For these applications, the drive can receive process commands from the plant control system and adjust motor speed accordingly.

19. Application — Chemical and Process Industries

Process industries frequently need accurate and repeatable motor speed control.

The 20G1G3F650MNANNNNN can be used with:

• Process pumps
• Large circulation systems
• Cooling systems
• Ventilation equipment
• Large fans
• Compressors
• Material-handling equipment
• Auxiliary process machinery

For process installations, the electrical and environmental requirements of the facility should be considered together with the drive specification.

20. Application — Industrial HVAC

Large industrial HVAC systems can use variable-speed drives for fans and pumps.

The drive can respond to:

• Air pressure
• Airflow
• Temperature
• Differential pressure
• Building demand
• Process demand

This makes the drive suitable for large factories, industrial buildings, tunnels, utility facilities, and process plants where ventilation and air movement require substantial motor power.

21. Main Advantages

21.1 High-Power Motor Control

The primary advantage of the 20G1G3F650MNANNNNN is its high-power capability.

The approximately 650 A Normal Duty / 630 kW class allows it to control motors substantially larger than those normally handled by compact industrial drives.

21.2 690 V Class

The 690 V architecture makes the drive suitable for large industrial motor systems.

It is particularly useful where large motors are already designed around a 690 V electrical system.

21.3 Variable-Speed Operation

The drive can change motor speed according to process requirements.

This provides more flexibility than a fixed-speed motor installation.

For pumps and fans, the ability to adjust speed can be especially valuable because the equipment does not necessarily need to operate at full speed throughout the entire production cycle.

21.4 Controlled Starting

Controlled acceleration can reduce sudden mechanical loading.

This is important for large rotating machines because the motor may be connected to heavy mechanical equipment.

A gradual acceleration profile can help reduce shock loading on mechanical components.

21.5 Controlled Stopping

The drive can also provide controlled deceleration.

This can be useful for large fans, conveyors, pumps, and high-inertia machines where an abrupt stop would be undesirable.

21.6 Industrial Automation Integration

The PowerFlex 755 platform is intended to operate as part of a broader industrial automation system.

The drive can therefore be incorporated into control architectures involving PLCs, HMIs, process controllers, feedback systems, and industrial communication networks.

21.7 Centralized Installation

The floor-mounted packaged format allows the drive to be installed in a dedicated electrical room.

This can make high-power electrical equipment easier to organize and maintain than installing large power electronics directly beside individual machines.

21.8 Wide Application Range

A single high-power drive platform can be used across different industries.

This includes:

• Mining
• Cement
• Metals
• Water
• Wastewater
• Chemical processing
• Manufacturing
• Material handling
• Industrial HVAC
• Utilities
• Paper and pulp
• Large-scale pumping

22. Dimensions and Weight

Physical dimensions are especially important for a drive of this size.

For preliminary equipment-room planning, a cabinet envelope of approximately:

2300 mm H × 1105 mm W × 1400 mm D

can be used as a practical planning reference for this large-frame class.

A preliminary planning weight of approximately 430 kg or more can also be used for layout and handling calculations.

However, these figures should not be treated as a guaranteed shipping weight or final cabinet dimension for every 20G1G3F650MNANNNNN assembly.

The final dimensions and weight can change depending on the exact packaged-drive configuration, factory-installed options, power components, enclosure arrangement, incoming equipment, disconnecting equipment, filtering, and other accessories.

For transportation and installation, the actual unit drawing and packing information should always take precedence over preliminary planning values.

23. Installation Requirements

Before installation, the following items should be checked:

Installation Item	Requirement / Consideration
Supply Voltage	Confirm compatibility with 690 V AC system
Phase	Three Phase
Motor Voltage	Match motor nameplate
Motor Current	Must be within selected drive duty
Motor Power	Check against applicable duty rating
Motor Frequency	Confirm required operating frequency
Motor Speed	Confirm base and maximum speed
Overload	Evaluate application-specific overload
Starting Torque	Check machine starting requirement
Cable	Select suitable motor and power cables
Grounding	Follow the plant electrical design
Ventilation	Provide sufficient airflow
Ambient Temperature	Verify operating conditions
Dust	Prevent contamination of cooling paths
Maintenance Space	Provide front and service access
Cabinet Location	Dry, clean, adequately ventilated electrical area
Control Wiring	Separate and route appropriately
Communication	Confirm required automation interface
Motor Feedback	Determine whether feedback is required
Mechanical Loading	Confirm floor and anchoring requirements

24. Selection Considerations

Selecting the correct high-power drive should start with the motor nameplate.

Important motor information includes:

• Rated voltage
• Rated current
• Rated power
• Rated frequency
• Rated speed
• Power factor
• Efficiency
• Service factor
• Motor duty

The machine load should then be evaluated.

A centrifugal pump, fan, conveyor, crusher, mill, compressor, and hoist can all have very different torque requirements even if their motors have similar power ratings.

For example, a conveyor can require significant starting torque because of its mechanical load, while a fan may have a different torque-speed characteristic.

The drive should therefore be selected based on the complete motor and load requirements rather than by motor horsepower alone.

25. Maintenance Advantages

A large industrial drive requires a structured maintenance program.

Important maintenance areas include:

• Cooling fans
• Air passages
• Electrical connections
• Power terminals
• Ground connections
• Cabinet cleanliness
• Control wiring
• Fault history
• Alarm history
• Operating temperature
• Motor current
• Drive loading

Regular inspection can help identify abnormal conditions before they develop into larger equipment problems.

For high-power equipment, preventive maintenance is particularly important because an unexpected drive shutdown can affect an entire production process.

26. Related Models — Same Series

The following five models are closely related within the high-power PowerFlex 755 690 V range.

Model	Voltage	Normal Duty	Light Duty	Heavy Duty	Typical Application
20G1G3F415MNANNNNN	690 V AC	415 A / 400 kW	460 A / 450 kW	370 A / 355 kW	Pumps, fans, conveyors
20G1G3F505MNANNNNN	690 V AC	505 A / 500 kW	565 A / 560 kW	415 A / 400 kW	Process machinery
20G1G3F565MNANNNNN	690 V AC	565 A / 560 kW	650 A / 630 kW	505 A / 500 kW	Large industrial equipment
20G1G3F735MNANNNNN	690 V AC	735 A / 710 kW	820 A / 800 kW	650 A / 630 kW	Large process machinery
20G1G3F820MNANNNNN	690 V AC	820 A / 800 kW	920 A / 900 kW	735 A / 710 kW	Very large industrial systems

The published 690 V PowerFlex 755 rating progression confirms the 505 A, 565 A, 650 A, 735 A, and 820 A classes and their associated duty ratings.

27. Same-Series Comparison

Model	ND Current	ND Power	LD Current	LD Power	HD Current	HD Power
20G1G3F415MNANNNNN	415 A	400 kW	460 A	450 kW	370 A	355 kW
20G1G3F505MNANNNNN	505 A	500 kW	565 A	560 kW	415 A	400 kW
20G1G3F565MNANNNNN	565 A	560 kW	650 A	630 kW	505 A	500 kW
20G1G3F650MNANNNNN	650 A	630 kW	735 A	710 kW	565 A	560 kW
20G1G3F735MNANNNNN	735 A	710 kW	820 A	800 kW	650 A	630 kW
20G1G3F820MNANNNNN	820 A	800 kW	920 A	900 kW	735 A	710 kW

This progression is useful when selecting a drive around the boundary between two motor-current classes.

For example, if a motor is close to the upper current limit of a 565 A class drive, the 650 A class may provide a more appropriate starting point, depending on the required duty and overload conditions.

28. Five Same-Brand Popular Models / Representative Models

Model	Product Series	Voltage Class	Current / Power Class	Construction	Typical Application
20G1G3F505MNANNNNN	PowerFlex 755	690 V AC	505 A ND / approx. 500 kW	Air-Cooled, Floor Mount	Pumps, fans, conveyors
20G1G3F565MNANNNNN	PowerFlex 755	690 V AC	565 A ND / approx. 560 kW	Air-Cooled, Floor Mount	Large process machinery
20G1G3F650MNANNNNN	PowerFlex 755	690 V AC	650 A ND / approx. 630 kW	Air-Cooled, Floor Mount	Large pumps, fans, compressors
20G1G3F735MNANNNNN	PowerFlex 755	690 V AC	735 A ND / approx. 710 kW	Air-Cooled, Floor Mount	Heavy industrial machinery
20G1G3F820MNANNNNN	PowerFlex 755	690 V AC	820 A ND / approx. 800 kW	Air-Cooled, Floor Mount	Very large process equipment

These models are all within the same high-power product family, so they are particularly useful as comparison points when the required motor current changes.

The 650 A model is essentially positioned between the 565 A and 735 A classes, making it a useful selection point for large motors whose current requirements exceed the lower rating but do not require the next larger drive class.

29. Related Configuration Variants

The PowerFlex 755 product range contains many catalog-number variations.

For the 650 A class alone, catalog listings include variants such as:

• 20G1G3F650LNANNNNN
• 20G1G3F650LNDNNNNN
• 20G1G3F650MNANNNNN
• 20G1G3F650MNDNNNNN
• 20G1G3F650LNDNNNNN-C0-P17
• 20G1G3F650MNANNNNN-P15-P17

These should not be treated as interchangeable simply because the central 650 rating is the same. Configuration letters and suffixes can correspond to different packaged arrangements and options.

When purchasing a replacement, the complete catalog number should therefore be matched rather than selecting only by the 650 A rating.

30. Typical System Architecture

A typical large-motor installation can be organized as follows:

Three-Phase AC Supply

↓

Main Protection / Disconnect

↓

20G1G3F650MNANNNNN

↓

Three-Phase High-Power Motor

↓

Pump / Fan / Conveyor / Compressor / Process Machine

The automation system can operate alongside the power circuit:

PLC / Controller → Drive Command → Motor Speed / Torque

Additional feedback can include:

• Motor speed
• Motor current
• Process pressure
• Process flow
• Temperature
• Drive status
• Fault status
• Run status
• Speed reference
• Torque reference

31. Advantages in Large Production Lines

For a large production line, motor speed is often one of the variables that must be controlled accurately.

The 20G1G3F650MNANNNNN allows the motor to become part of the production sequence.

For example, a conveyor can be accelerated before material is introduced.

A pump can increase speed when process demand rises.

A fan can reduce speed when ventilation demand decreases.

A compressor can adjust operation according to process requirements.

This type of control can make the motor system more closely coordinated with the rest of the production process.

32. Advantages for Heavy-Duty Equipment

Large mechanical machines often have substantial inertia.

If the motor is started or stopped too aggressively, the mechanical system can experience unnecessary stress.

A high-power variable-speed drive can provide controlled acceleration and deceleration profiles.

This is particularly useful for:

• Long conveyors
• Large fans
• Large pumps
• Centrifugal equipment
• Crushers
• Mills
• Heavy rotating machinery

The exact acceleration and deceleration parameters should be established according to the machine manufacturer’s mechanical requirements.

33. Electrical Room Planning

The physical size of a 650 A packaged drive should be considered at the early design stage.

The electrical room should provide sufficient space for:

• Drive cabinet
• Incoming power cables
• Motor cables
• Control cables
• Communication cables
• Ventilation
• Maintenance access
• Inspection access
• Lifting and transportation
• Adjacent switchgear
• Cable trays
• Grounding

The approximate 2300 × 1105 × 1400 mm planning envelope can be used for preliminary layout work, but the final drawing for the actual configuration should be used before construction.

34. Environmental Considerations

A high-power air-cooled drive is sensitive to its installation environment.

The following conditions should be considered:

Temperature: Excessive ambient temperature can affect the thermal performance of the drive.

Dust: Dust accumulation can reduce airflow and contaminate cooling components.

Humidity: Excessive moisture can create electrical reliability problems.

Vibration: Severe mechanical vibration can affect cabinet-mounted components and connections.

Altitude: High-altitude installations may require additional thermal and electrical evaluation.

Ventilation: Airflow must be sufficient to remove heat from the drive room.

Maintenance: Cooling paths and cabinet interiors should remain accessible for inspection.

35. Recommended Motor Applications

Application	Suitability	Typical Requirement
Large Water Pump	High	Variable speed and pressure/flow control
Wastewater Pump	High	Continuous operation and process control
Large Fan	High	Variable airflow and pressure control
Industrial Compressor	High	Speed regulation and controlled starting
Conveyor	High	Controlled acceleration and torque
Crusher	High	High-power motor and demanding starting conditions
Grinding Mill	High	Large motor and controlled operation
Cement Equipment	High	Continuous heavy industrial operation
Mining Equipment	High	High-power motor control
Steel Plant Equipment	High	Process speed and torque control
Material Handling	High	Controlled acceleration/deceleration
Industrial HVAC	High	Variable airflow and energy management
Process Machinery	High	Closed-loop process control

36. Model Identification Summary

Item	Details
Model	20G1G3F650MNANNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Product Type	Air-Cooled AC Packaged Drive
Voltage	690 V AC
Phase	Three Phase
Normal Duty	Approx. 650 A / 630 kW
Light Duty	Approx. 735 A / 710 kW
Heavy Duty	Approx. 565 A / 560 kW
Cooling	Forced Air
Mounting	Floor Mount
Enclosure Class	Type 1 / IP21 class for the corresponding configuration
Main Function	Variable-Speed AC Motor Control
Typical Motor	Large Three-Phase AC Motor
Typical Industries	Mining, Cement, Steel, Water, Chemical, Manufacturing
Approx. Dimensions	2300 × 1105 × 1400 mm H × W × D*
Approx. Weight	430 kg or above depending on configuration*

*Dimensions and weight are preliminary planning figures and should be replaced by the exact mechanical drawing and shipping data for the selected configuration.

37. Engineering Selection Checklist

Before ordering the 20G1G3F650MNANNNNN, the following information should be confirmed:

Check Item	Required Information
Motor Voltage	Actual motor nameplate voltage
Motor Current	Actual full-load current
Motor Power	kW rating
Motor Frequency	50 Hz / 60 Hz or application-specific
Motor Speed	Rated RPM
Load Type	Pump / Fan / Conveyor / Compressor / Mill / Crusher
Duty	Light / Normal / Heavy
Starting Torque	Required starting torque
Overload	Required overload level and duration
Speed Range	Minimum and maximum motor speed
Feedback	Encoder or other feedback if required
Environment	Temperature, dust, humidity, altitude
Cooling	Electrical-room ventilation
Communication	Required control network
Enclosure	Required environmental protection
Mechanical Installation	Cabinet dimensions and access
Weight	Transportation and lifting capacity
Power System	Transformer and incoming supply capacity
Cable System	Incoming and motor cable arrangement

38. Overall Product Advantages

The 20G1G3F650MNANNNNN combines a high-current 690 V architecture with a floor-mounted air-cooled packaged-drive format.

Its approximately 650 A Normal Duty rating and approximately 630 kW Normal Duty power class place it in the high-power industrial category.

The main practical advantages are:

• High-capacity motor control
• 690 V three-phase architecture
• Large industrial motor compatibility
• Variable-speed operation
• Controlled acceleration
• Controlled deceleration
• Torque control
• Industrial automation integration
• Centralized electrical-room installation
• Broad application range
• Suitable for pumps and fans
• Suitable for conveyors
• Suitable for compressors
• Suitable for mining machinery
• Suitable for cement equipment
• Suitable for process machinery
• Suitable for large material-handling systems

39. Final Product Description

The Allen-Bradley 20G1G3F650MNANNNNN is a high-power PowerFlex 755 air-cooled AC packaged drive designed for large three-phase motor applications.

Its 690 V AC architecture and approximately 650 A Normal Duty / 630 kW rating make it suitable for large industrial equipment where controlled motor speed, torque, acceleration, and deceleration are required.

The drive is particularly appropriate for large pumps, industrial fans, compressors, conveyors, crushers, mills, mining equipment, cement machinery, steel-processing equipment, water-treatment systems, and other process machines.

Its floor-mounted packaged construction makes it suitable for centralized electrical rooms and dedicated drive areas.

The air-cooled architecture provides a practical solution for large industrial installations, while the PowerFlex 755 platform provides the control capabilities needed to integrate a large motor into a wider automation system.

When selecting the drive, the motor’s actual rated current should be given priority over nominal motor horsepower alone. Duty requirements, overload conditions, starting torque, operating speed, feedback requirements, environmental conditions, cooling, cable arrangement, and control-system requirements should all be considered.

The closely related 20G1G3F505, 20G1G3F565, 20G1G3F735, and 20G1G3F820 classes provide a useful progression around the 650 A rating, allowing the drive size to be matched more closely to the actual motor current and application duty.

For large industrial motor systems, the 20G1G3F650MNANNNNN can therefore be described as a 690 V, three-phase, air-cooled, floor-mounted, high-power PowerFlex 755 AC packaged drive for large-scale variable-speed motor control.