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The Allen-Bradley 20F11RC3P5JA0NNNNN is a PowerFlex 753 AC Drive designed for three-phase industrial motor control applications.
It is a 400 VAC, 3-phase, 3.5 A, Frame 1 air-cooled drive with a 1.5 kW normal-duty rating and a 0.75 kW heavy-duty rating. The configuration includes embedded I/O, EMC filtering, an installed common-mode capacitor jumper, a dynamic-braking transistor, AC input with precharge and DC terminals, IP20 open-type construction, and a blank/no-HIM configuration.
The model is particularly suitable for industrial machinery where controlled motor speed, smooth acceleration and deceleration, reliable motor control, and integration with a larger automation system are required.
| Item | Specification |
|---|---|
| Catalog Number | 20F11RC3P5JA0NNNNN |
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 753 |
| Product Type | AC Variable Frequency Drive |
| Drive Type | Air-Cooled AC Drive |
| Voltage Class | 400 VAC |
| Input Voltage Class | 380–480 VAC |
| Input Phase | 3-Phase |
| Output Phase | 3-Phase |
| Output Current | 3.5 A |
| Normal-Duty Rating | 1.5 kW |
| Heavy-Duty Rating | 0.75 kW |
| Approx. Normal-Duty Motor Class | 2 HP |
| Approx. Heavy-Duty Motor Class | 1 HP |
| Frame Size | Frame 1 |
| Cooling | Forced Air |
| Enclosure | IP20, NEMA/UL Open Type |
| EMC Filtering | Filtered |
| CM Capacitor Jumper | Installed |
| Dynamic Braking | DB Transistor |
| Embedded I/O | Yes |
| HIM | Blank / No HIM |
| Input Type | AC Input with Precharge |
| DC Terminals | Yes |
| Approx. Height | 400.5 mm |
| Approx. Width | 110 mm |
| Approx. Depth | 211 mm |
| Approx. Weight | 6.0 kg |
The 20F11RC3P5JA0NNNNN is therefore a relatively compact industrial drive despite belonging to the more capable PowerFlex 753 platform.
| Category | Details |
|---|---|
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 753 |
| Series Type | Industrial AC Drive |
| Main Application | Variable-Speed Motor Control |
| Voltage Class | 400 VAC |
| Frame | Frame 1 |
| Cooling | Forced Air |
| Enclosure | IP20 Open Type |
The product belongs to the Allen-Bradley PowerFlex 753 series.
PowerFlex 753 drives are designed for industrial applications where a basic variable-frequency drive is not necessarily enough and the machine may benefit from embedded I/O, additional control functions, feedback options, communication capabilities, braking functions and a broader drive architecture.
The series is especially useful for machine builders and industrial automation engineers who want to standardize several different motor sizes around one drive platform.
| Electrical Parameter | Specification |
|---|---|
| Model | 20F11RC3P5JA0NNNNN |
| Rated Voltage Class | 400 VAC |
| Supply Voltage Range | 380–480 VAC class |
| Input Phase | 3-phase |
| Output Phase | 3-phase |
| Input Frequency | 50/60 Hz |
| Rated Output Current | 3.5 A |
| Normal-Duty Power | 1.5 kW |
| Heavy-Duty Power | 0.75 kW |
| Approx. ND Horsepower | 2 HP |
| Approx. HD Horsepower | 1 HP |
| Input Type | AC Input with Precharge |
| DC Terminals | Yes |
| Dynamic Braking | DB Transistor |
| Internal Braking Resistor | No |
| External Braking Resistor | Supported |
| EMC Filter | Yes |
| CM Jumper | Installed |
| Embedded I/O | Yes |
| HIM | Blank / No HIM |
| Cooling | Forced Air |
| Enclosure | IP20 / NEMA/UL Open Type |
| Frame Size | Frame 1 |
| Approx. Dimensions | 400.5 × 110 × 211 mm |
| Approx. Weight | 6.0 kg |
The most important electrical specification is the 3.5 A output current.
The drive’s normal-duty rating is 1.5 kW, making it suitable for a broad range of small industrial motors.
When selecting the drive, the actual motor nameplate current should be checked rather than selecting solely according to motor horsepower.
| Operating Mode | Power Rating | Approx. Motor Class | Current Class |
|---|---|---|---|
| Normal Duty | 1.5 kW | Approx. 2 HP | 3.5 A |
| Heavy Duty | 0.75 kW | Approx. 1 HP | Application dependent |
The distinction between normal duty and heavy duty is important.
A motor running a relatively steady load may fit the normal-duty rating, while an application with repeated acceleration, high starting torque, shock loading or frequent overload conditions may require the heavy-duty rating to be considered.
For example, a light conveyor may be suitable for the normal-duty rating, while a heavily loaded conveyor with frequent starts and stops may need a more conservative drive selection.
The 20F11RC3P5JA0NNNNN can be described as:
PowerFlex 753 AC Drive, Embedded I/O, Standard Protection, Forced Air, AC Input with DC Terminals, IP20/NEMA/UL Open Type, 3.5 A, 1.5 kW Normal Duty, 0.75 kW Heavy Duty, 400 VAC, 3-Phase, Frame 1, Filtered, CM Jumper Installed, DB Transistor, Blank/No HIM.
This description gives a useful picture of how the catalog number is configured.
It is not simply a motor inverter with a power section. It is an industrial drive platform intended to form part of a larger machine-control system.
A variable-frequency drive controls the speed of an AC motor by controlling the electrical frequency and voltage supplied to the motor.
The 20F11RC3P5JA0NNNNN can therefore be positioned between the industrial power supply and a three-phase motor.
A typical system can look like:
PLC / Controller
↓
Control Command
↓
PowerFlex 753 Drive
↓
Three-Phase Motor
↓
Gearbox / Conveyor / Pump / Fan / Machine Mechanism
The drive can provide controlled starting, variable-speed operation and controlled stopping.
This is particularly valuable in industrial machines because a motor does not always need to run at one fixed speed.
A conveyor, for example, might need a slow speed during loading, a higher speed during normal production and a controlled stop when a sensor detects a product.
The model is designed for the 400 VAC three-phase class.
This makes it suitable for industrial power systems commonly operating around 380 V, 400 V or 415 V.
The drive receives three-phase AC power and generates a controlled three-phase output for the motor.
This type of configuration is widely used in industrial machinery.
Typical equipment includes:
The 3.5 A output rating is one of the key specifications of this model.
It places the drive in a useful range for smaller industrial motors.
The 3.5 A rating should be compared with the motor’s actual nameplate current.
For example, two motors with the same nominal 1.5 kW rating can have different current requirements depending on:
For this reason, current is usually a more useful selection parameter than horsepower alone.
The 1.5 kW normal-duty rating makes the drive suitable for many compact industrial machines.
Typical applications include:
The 1.5 kW rating also makes this model a convenient mid-point within the smaller PowerFlex 753 configurations.
The drive uses a Frame 1 mechanical design.
The approximate dimensions are:
400.5 mm × 110 mm × 211 mm
with an approximate drive weight of:
6.0 kg
The narrow 110 mm width is particularly useful in control cabinets where panel width is limited.
The cabinet designer should nevertheless allow additional room around the drive for:
The physical drive dimensions should therefore not be treated as the total cabinet-space requirement.
| Mechanical Parameter | Specification |
|---|---|
| Model | 20F11RC3P5JA0NNNNN |
| Frame | Frame 1 |
| Height | 400.5 mm |
| Width | 110 mm |
| Depth | 211 mm |
| Approx. Weight | 6.0 kg |
| Enclosure | IP20 |
| Enclosure Type | NEMA/UL Open Type |
| Cooling | Forced Air |
| Installation | Panel / Cabinet |
| Mounting Orientation | Typically Vertical |
The approximately 6.0 kg weight is useful for cabinet mounting and mechanical planning.
Actual shipping weight can be higher because packaging and accessories are not necessarily included in the basic drive weight.
The drive uses forced-air cooling.
Variable-frequency drives generate heat as their power electronics switch the incoming electrical energy into a controlled motor output.
The internal cooling system moves air through the drive to help remove this heat.
Proper airflow is therefore important.
A cabinet designer should consider:
A drive operating in a hot cabinet may experience much greater thermal stress than the same drive installed in a properly ventilated enclosure.
The drive has an IP20 / NEMA/UL Open Type enclosure.
This means the drive is intended to be installed inside a suitable protective electrical enclosure.
It should not be treated as a sealed outdoor drive.
The cabinet should protect it from:
This type of installation is standard for many industrial control panels.
The model includes EMC filtering.
AC drives use high-frequency switching technology.
This switching is necessary to control the motor, but it can also create electrical disturbances.
The EMC filtering arrangement helps manage certain conducted disturbances.
However, the overall EMC performance depends on the entire installation.
Good installation practice should include:
The EMC filter should therefore be regarded as one part of a complete EMC installation strategy.
One of the most important details of this model is the installed common-mode capacitor jumper.
The catalog number contains the JA configuration.
For this model:
20F11RC3P5JA0NNNNN = CM capacitor jumper installed
This is different from the closely related AA configuration.
| Model | CM Capacitor Configuration |
|---|---|
| 20F11RC3P5JA0NNNNN | Installed |
| 20F11RC3P5AA0NNNNN | Removed |
This distinction matters when replacing an existing drive.
Even when two drives have the same voltage, current, power and frame size, the exact configuration should be matched to the electrical system.
The drive includes a dynamic-braking transistor.
This allows an external braking resistor to be used when an application needs additional braking capability.
During motor deceleration, the motor can return mechanical energy to the drive.
That regenerated energy can increase the DC-bus voltage.
A braking resistor can dissipate the excess energy as heat.
This can be particularly useful for:
The braking resistor must be selected according to the actual braking energy and duty cycle.
The 20F11RC3P5JA0NNNNN includes embedded I/O.
This can reduce the need for additional interface hardware for basic machine-control signals.
Depending on the control architecture, the drive can be integrated with signals such as:
For smaller machines, embedded I/O can make the control architecture more straightforward.
For larger systems, the embedded I/O can complement PLC and communication-based control.
The model is configured as Blank / No HIM.
HIM refers to a Human Interface Module.
A local keypad is not always necessary in an automated machine.
Many OEM machines already have a cabinet-mounted HMI.
In such an installation, the operator may interact with the drive indirectly through:
The no-HIM configuration is therefore particularly practical for OEM machinery where the drive is installed inside a cabinet.
Conveyors are one of the most common applications for this type of drive.
A conveyor motor may need several operating speeds depending on the production process.
The drive can provide:
Applications include:
Packaging equipment often uses relatively small motors for:
The drive allows the machine builder to control motor speed according to the production sequence.
Controlled acceleration and deceleration can also reduce mechanical shock.
Feeders often need accurate speed adjustment.
A feeder running too fast may create product jams, while running too slowly may reduce production capacity.
The drive allows the machine controller to adjust motor speed according to production requirements.
This makes it useful for:
The drive can be used with appropriate small industrial pumps.
Typical applications include:
Variable-speed operation allows the pump output to be adjusted to the actual process requirement.
For appropriate centrifugal-pump applications, reducing motor speed can also reduce energy consumption.
Fans and blowers frequently do not need to operate at maximum speed all the time.
The drive can provide adjustable motor speed for:
This makes it possible to match airflow more closely to actual process demand.
Material-handling machines often benefit from controlled motor speed.
Examples include:
Controlled acceleration can reduce mechanical shock in belts, chains, couplings and gearboxes.
Small industrial rollers can require adjustable speed depending on product dimensions and production requirements.
Potential applications include:
The drive can provide a controlled motor speed rather than relying on a fixed-frequency motor supply.
A larger production machine can contain several smaller motors.
For example:
| Machine Function | Typical Motor |
|---|---|
| Main conveyor | Larger drive |
| Product feeder | Smaller drive |
| Cooling fan | Smaller drive |
| Auxiliary pump | Smaller drive |
| Transfer roller | Smaller drive |
| Positioning mechanism | Smaller drive |
The 20F11RC3P5JA0NNNNN can be an appropriate drive for an auxiliary motor when the motor current and duty cycle match its rating.
| Advantage | Practical Benefit |
|---|---|
| 1.5 kW Normal-Duty Rating | Suitable for many small industrial motors |
| 3.5 A Output | Good capacity for the 1.5 kW class |
| 400 VAC Three-Phase | Suitable for common industrial power systems |
| Frame 1 | Compact mechanical package |
| Forced-Air Cooling | Supports continuous industrial operation when properly ventilated |
| IP20 Construction | Convenient for cabinet installation |
| Embedded I/O | Simplifies machine integration |
| EMC Filtering | Supports controlled electrical noise performance |
| CM Jumper Installed | Provides the JA configuration |
| DB Transistor | Supports external dynamic braking |
| No HIM | Suitable for PLC/HMI-controlled machines |
| PowerFlex 753 Platform | Supports drive-family standardization |
| Variable-Speed Control | Allows machine speed adjustment |
| Controlled Acceleration | Helps reduce mechanical shock |
| Controlled Deceleration | Provides smoother stopping |
| Scalable Series | Makes it easier to use related drives for different motor sizes |
One major benefit of the PowerFlex 753 family is platform standardization.
An OEM may have several machine models using different motor sizes.
For example:
Using related PowerFlex 753 drives can make the electrical architecture more consistent.
This can simplify:
System integrators often need to combine drives with:
The PowerFlex 753 platform provides a flexible base for this type of architecture.
The embedded I/O can handle basic machine signals while optional functions and communication capabilities can be added according to the project requirements.
A standardized drive platform can make maintenance easier.
Technicians working with several PowerFlex 753 installations can become familiar with:
This can help reduce diagnostic time.
A standardized product family can also make spare-parts management easier.
The following five models are good same-series or closely related choices around the subject model.
| Model | Voltage | Output Current | Normal-Duty Power | Heavy-Duty Power | Frame | CM Jumper | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|---|
| 20F11RC2P1JA0NNNNN | 400 VAC | 2.1 A | 0.75 kW | 0.37 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC3P5JA0NNNNN | 400 VAC | 3.5 A | 1.5 kW | 0.75 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC5P0JA0NNNNN | 400 VAC | 5.0 A | 2.2 kW | 1.5 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC8P7JA0NNNNN | 400 VAC | 8.7 A | 4.0 kW | Approx. 2.2 kW class | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC015JA0NNNNN | 400 VAC | 15.4 A | 7.5 kW | 5.5 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
These models provide a convenient progression in motor capacity.
The 20F11RC2P1JA0NNNNN is a smaller 0.75 kW-class option.
The subject 20F11RC3P5JA0NNNNN occupies the 1.5 kW class.
The 20F11RC5P0JA0NNNNN moves up to approximately 2.2 kW.
The 20F11RC8P7JA0NNNNN provides a larger 4.0 kW class option.
The 20F11RC015JA0NNNNN provides a much larger 7.5 kW normal-duty capacity.
| Model | Output Current | ND Power | HD Power | Voltage | Frame | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|---|
| 20F11RC2P1JA0NNNNN | 2.1 A | 0.75 kW | 0.37 kW | 400 VAC | 1 | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC3P5JA0NNNNN | 3.5 A | 1.5 kW | 0.75 kW | 400 VAC | 1 | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC5P0JA0NNNNN | 5.0 A | 2.2 kW | 1.5 kW | 400 VAC | 1 | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC8P7JA0NNNNN | 8.7 A | 4.0 kW | Approx. 2.2 kW class | 400 VAC | 1 | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC015JA0NNNNN | 15.4 A | 7.5 kW | 5.5 kW | 400 VAC | 1 | 400.5 × 110 × 211 mm | 6.0 kg |
This progression is useful when designing a machine family.
The same general PowerFlex 753 architecture can be maintained while the drive rating changes according to motor requirements.
| Model | Series | Voltage | Current | ND Power | HD Power | Frame | CM Configuration | Dimensions | Weight |
|---|---|---|---|---|---|---|---|---|---|
| 20F11RC2P1AA0NNNNN | PowerFlex 753 | 400 VAC | 2.1 A | 0.75 kW | 0.37 kW | 1 | Removed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC3P5AA0NNNNN | PowerFlex 753 | 400 VAC | 3.5 A | 1.5 kW | 0.75 kW | 1 | Removed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC3P5JA0NNNNN | PowerFlex 753 | 400 VAC | 3.5 A | 1.5 kW | 0.75 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC5P0JA0NNNNN | PowerFlex 753 | 400 VAC | 5.0 A | 2.2 kW | 1.5 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
| 20F11RC015JA0NNNNN | PowerFlex 753 | 400 VAC | 15.4 A | 7.5 kW | 5.5 kW | 1 | Installed | 400.5 × 110 × 211 mm | 6.0 kg |
The first three models are particularly useful when the CM capacitor jumper configuration is an important consideration.
The difference between the JA and AA versions deserves special attention.
| Feature | 20F11RC3P5JA0NNNNN | 20F11RC3P5AA0NNNNN |
|---|---|---|
| Product Series | PowerFlex 753 | PowerFlex 753 |
| Voltage | 400 VAC | 400 VAC |
| Output Current | 3.5 A | 3.5 A |
| ND Power | 1.5 kW | 1.5 kW |
| HD Power | 0.75 kW | 0.75 kW |
| Frame | 1 | 1 |
| Cooling | Forced Air | Forced Air |
| EMC Filter | Yes | Yes |
| CM Jumper | Installed | Removed |
| Dynamic Braking | DB Transistor | DB Transistor |
| Embedded I/O | Yes | Yes |
| HIM | Blank / No HIM | Blank / No HIM |
| DC Terminals | Yes | Yes |
| Height | 400.5 mm | 400.5 mm |
| Width | 110 mm | 110 mm |
| Depth | 211 mm | 211 mm |
| Approx. Weight | 6.0 kg | 6.0 kg |
For replacement work, this difference should not be overlooked.
The power rating alone does not completely identify the configuration.
The following models are useful alternatives or related products within the same broad Allen-Bradley drive portfolio.
| Model | Product Series | Voltage Class | Current / Power Class | Typical Application | Approx. Dimensions | Approx. Weight |
|---|---|---|---|---|---|---|
| 25B-D4P8N104 | PowerFlex 525 | 480 VAC class | Approx. 4.8 A class | Compact OEM machinery | Configuration dependent | Configuration dependent |
| 25B-D011N104 | PowerFlex 525 | 480 VAC class | Approx. 11 A class | General industrial machinery | Configuration dependent | Configuration dependent |
| 22B-D6P0N104 | PowerFlex 40 | 480 VAC, 3-phase | 6.0 A / 2.2 kW | Pumps, fans, conveyors | Approx. 159 × 213 × 136 mm | Approx. 2.2 kg |
| 22B-D010N104 | PowerFlex 40 | 480 VAC, 3-phase | 10.5 A / 4.0 kW | General-purpose motor control | Approx. 159 × 196 × 136 mm | Approx. 2.2 kg |
| 20G11RC015JA0NNNNN | PowerFlex 755 | 400 VAC class | Approx. 15.4 A / 7.5 kW class | Advanced industrial motor control | Configuration dependent | Configuration dependent |
The dimensions for the PowerFlex 525 and PowerFlex 755 examples can vary depending on the exact configuration and frame.
The PowerFlex 40 examples are physically smaller than the subject PowerFlex 753 and are better viewed as compact alternatives for simpler applications rather than direct replacements.
| Feature | 20F11RC3P5JA0NNNNN | 25B-D4P8N104 |
|---|---|---|
| Product Series | PowerFlex 753 | PowerFlex 525 |
| General Position | Advanced industrial drive | Compact machine drive |
| Typical Application | Industrial machinery | OEM / compact machinery |
| Voltage Class | 400 VAC | 480 VAC class |
| Subject Drive Current | 3.5 A | Approx. 4.8 A class |
| Embedded I/O | Yes | Yes |
| Dynamic Braking | DB Transistor | Configuration dependent |
| Enclosure | IP20 Open Type | IP20 class |
| Dimensions | 400.5 × 110 × 211 mm | Configuration dependent |
| Weight | Approx. 6.0 kg | Configuration dependent |
The PowerFlex 525 is attractive when physical size and compact machine integration are major priorities.
The PowerFlex 753 is generally more appropriate when the application requires a broader industrial-drive platform and greater expansion flexibility.
| Feature | 20F11RC3P5JA0NNNNN | 22B-D6P0N104 |
|---|---|---|
| Product Series | PowerFlex 753 | PowerFlex 40 |
| Voltage | 400 VAC class | 480 VAC class |
| Output Current | 3.5 A | 6.0 A |
| Power Class | 1.5 kW ND | 2.2 kW |
| Frame | Frame 1 | Compact Frame |
| Enclosure | IP20 | IP20 |
| Cooling | Forced Air | Fan-cooled |
| Embedded I/O | Yes | Yes |
| Approx. Dimensions | 400.5 × 110 × 211 mm | Approx. 159 × 213 × 136 mm |
| Approx. Weight | 6.0 kg | 2.2 kg |
The PowerFlex 40 is substantially more compact and lighter.
However, the PowerFlex 753 belongs to a more capable industrial drive platform.
For a simple pump, fan or conveyor, a smaller drive may be adequate.
For a more sophisticated machine requiring broader drive functionality, the PowerFlex 753 can be a better fit.
| Application | Typical Motor Size | Recommended Model |
|---|---|---|
| Small fan | 0.37–0.75 kW | 20F11RC2P1JA0NNNNN |
| Small pump | Around 0.75 kW | 20F11RC2P1JA0NNNNN |
| Small conveyor | Around 0.75–1.0 kW | 20F11RC2P1JA0NNNNN |
| Packaging conveyor | Around 1.5 kW | 20F11RC3P5JA0NNNNN |
| Product feeder | Around 1.5 kW | 20F11RC3P5JA0NNNNN |
| Transfer roller | Around 1.5–2.2 kW | 20F11RC3P5JA0NNNNN / 20F11RC5P0JA0NNNNN |
| Medium conveyor | Around 2.2 kW | 20F11RC5P0JA0NNNNN |
| Larger machine | Around 4.0 kW | 20F11RC8P7JA0NNNNN |
| Higher-capacity machine | Around 7.5 kW | 20F11RC015JA0NNNNN |
This table is intended as a practical starting point.
Final drive selection should always be confirmed against motor nameplate current, duty cycle, acceleration requirements, overload requirements and environmental conditions.
A conveyor using this drive could operate in the following sequence:
Start Command
↓
Controlled Acceleration
↓
Normal Operating Speed
↓
Speed Adjustment
↓
Controlled Deceleration
↓
Stop
This is much smoother than simply connecting and disconnecting the motor from the electrical supply.
The controlled acceleration can reduce mechanical shock.
The adjustable speed can allow the production line to adapt to different operating conditions.
The controlled deceleration can reduce abrupt stopping.
A feeder can use several different speed levels.
For example:
| Operating Condition | Example Speed Reference |
|---|---|
| Setup | 20–30% |
| Slow Feeding | 40–50% |
| Normal Production | 60–75% |
| High Production | 80–90% |
The actual values depend entirely on the machine.
The advantage is that the drive gives the machine controller a convenient way to regulate motor speed.
A pump can also operate at different speeds.
For example:
Low Process Demand → Low Speed
Normal Process Demand → Medium Speed
High Process Demand → Higher Speed
This can provide smoother process control.
For suitable centrifugal-pump systems, lower speed operation may also reduce power consumption.
A fan may not need full speed continuously.
A control system can adjust speed according to:
The drive can therefore act as the interface between the machine control system and the fan motor.
The approximate drive dimensions are:
400.5 mm Height × 110 mm Width × 211 mm Depth
However, the required cabinet space will be larger.
The installer should allow additional room for:
The drive should normally be installed in a suitable vertical orientation with adequate airflow.
Thermal management should be considered during cabinet design.
The drive’s internal power electronics generate heat.
If several drives are mounted close together, their combined heat load can increase cabinet temperature.
The designer should therefore consider:
Good thermal design can have a major impact on long-term reliability.
| Item | Requirement |
|---|---|
| Supply Voltage | 400 VAC class |
| Supply Phase | 3-phase |
| Motor Phase | 3-phase |
| Drive Current | 3.5 A |
| Normal-Duty Power | 1.5 kW |
| Heavy-Duty Power | 0.75 kW |
| Motor Nameplate Current | Must be checked |
| Grounding | Required |
| EMC Installation | Required |
| Motor Cable | Properly selected |
| CM Jumper | Installed |
| Braking | External resistor if required |
| Cabinet | Suitable protective enclosure |
| Cooling | Adequate airflow |
| Maintenance Access | Required |
Regular maintenance should concentrate on cleanliness, cooling and electrical connections.
Important inspection points include:
A drive installed in a dusty industrial environment may require more frequent inspection than one installed in a clean control room.
For a machine fleet using the PowerFlex 753 series, a logical spare-parts structure can be built around motor power.
| Motor Class | Recommended PowerFlex 753 Model |
|---|---|
| 0.75 kW | 20F11RC2P1JA0NNNNN |
| 1.5 kW | 20F11RC3P5JA0NNNNN |
| 2.2 kW | 20F11RC5P0JA0NNNNN |
| 4.0 kW | 20F11RC8P7JA0NNNNN |
| 7.5 kW | 20F11RC015JA0NNNNN |
This kind of standardization can make spare-parts management easier.
It also gives maintenance personnel a more consistent drive architecture across different machines.
| Parameter | Specification |
|---|---|
| Catalog Number | 20F11RC3P5JA0NNNNN |
| Frame Size | Frame 1 |
| Height | 400.5 mm |
| Width | 110 mm |
| Depth | 211 mm |
| Approx. Weight | 6.0 kg |
| Enclosure | IP20 |
| Enclosure Type | NEMA/UL Open Type |
| Cooling | Forced Air |
| Mounting | Panel / Cabinet |
| Typical Orientation | Vertical |
| Cabinet Protection | Required |
| Ventilation | Required |
| Function | Specification |
|---|---|
| Model | 20F11RC3P5JA0NNNNN |
| Variable-Speed Motor Control | Yes |
| 400 VAC Three-Phase Operation | Yes |
| 1.5 kW Normal Duty | Yes |
| 0.75 kW Heavy Duty | Yes |
| Embedded I/O | Yes |
| Dynamic-Braking Transistor | Yes |
| External Braking Resistor Support | Yes |
| EMC Filtering | Yes |
| CM Jumper | Installed |
| AC Input Precharge | Yes |
| DC Terminals | Yes |
| Forced-Air Cooling | Yes |
| IP20 Construction | Yes |
| No-HIM Configuration | Yes |
| Frame 1 Construction | Yes |
| Category | Parameter |
|---|---|
| Model | 20F11RC3P5JA0NNNNN |
| Brand | Allen-Bradley |
| Product Family | PowerFlex |
| Product Series | PowerFlex 753 |
| Product Type | Industrial AC Variable Frequency Drive |
| Drive Construction | Air-Cooled |
| Voltage Class | 400 VAC |
| Supply Voltage Class | 380–480 VAC |
| Input Phase | 3-phase |
| Output Phase | 3-phase |
| Input Frequency | 50/60 Hz |
| Output Current | 3.5 A |
| Normal-Duty Power | 1.5 kW |
| Heavy-Duty Power | 0.75 kW |
| Normal-Duty Horsepower Class | Approx. 2 HP |
| Heavy-Duty Horsepower Class | Approx. 1 HP |
| Frame | Frame 1 |
| Cooling | Forced Air |
| Enclosure | IP20 / NEMA/UL Open Type |
| EMC Filtering | Filtered |
| CM Capacitor Jumper | Installed |
| Dynamic Braking | DB Transistor |
| Internal Braking Resistor | No |
| External Braking Resistor | Supported |
| Embedded I/O | Yes |
| HIM | Blank / No HIM |
| Input Type | AC Input with Precharge |
| DC Terminals | Yes |
| Approx. Height | 400.5 mm |
| Approx. Width | 110 mm |
| Approx. Depth | 211 mm |
| Approx. Weight | 6.0 kg |
The 20F11RC3P5JA0NNNNN occupies a useful position in the PowerFlex 753 family.
It is not the smallest model in the family, but it remains physically compact because it uses the Frame 1 design.
Its 3.5 A output rating gives it enough capacity for the 1.5 kW normal-duty class, while its 0.75 kW heavy-duty rating makes the duty classification clear for more demanding applications.
The 400 VAC three-phase configuration makes it suitable for a broad range of industrial electrical systems.
The embedded I/O is useful for machine integration.
The dynamic-braking transistor is valuable for applications where controlled stopping and energy dissipation are important.
The EMC filtering and installed CM capacitor jumper make the exact configuration particularly relevant when replacing another drive from the same family.
The blank/no-HIM arrangement also makes sense for automated machinery where the main operator interface is an HMI or PLC rather than a keypad mounted directly on the drive.
| Recommendation | Model | Main Reason |
|---|---|---|
| Smaller PowerFlex 753 | 20F11RC2P1JA0NNNNN | 0.75 kW class |
| Main Subject Model | 20F11RC3P5JA0NNNNN | 1.5 kW class / 3.5 A |
| Next Larger Model | 20F11RC5P0JA0NNNNN | 2.2 kW class / 5.0 A |
| Larger Frame 1 Option | 20F11RC8P7JA0NNNNN | 4.0 kW class / 8.7 A |
| Higher-Capacity Frame 1 | 20F11RC015JA0NNNNN | 7.5 kW class / 15.4 A |
| Compact Alternative | 25B-D4P8N104 | PowerFlex 525 |
| Larger Compact Alternative | 25B-D011N104 | PowerFlex 525 |
| Compact General-Purpose Drive | 22B-D6P0N104 | PowerFlex 40, 2.2 kW |
| Larger General-Purpose Drive | 22B-D010N104 | PowerFlex 40, 4.0 kW |
| Higher-Level Drive Alternative | 20G11RC015JA0NNNNN | PowerFlex 755, 7.5 kW class |
The Allen-Bradley 20F11RC3P5JA0NNNNN is a PowerFlex 753 air-cooled industrial AC drive designed for 400 VAC, three-phase motor-control applications.
Its primary electrical rating is 3.5 A, with a 1.5 kW normal-duty rating and a 0.75 kW heavy-duty rating.
The drive uses a Frame 1 mechanical package with approximate dimensions of 400.5 mm × 110 mm × 211 mm and an approximate weight of 6.0 kg.
Its IP20 / NEMA/UL Open Type construction means that it is intended for installation inside a suitable electrical cabinet.
The drive uses forced-air cooling, so cabinet ventilation and thermal management should be considered during installation.
One of the most significant configuration details is the installed CM capacitor jumper associated with the JA configuration.
This distinguishes 20F11RC3P5JA0NNNNN from the related 20F11RC3P5AA0NNNNN, which uses the removed-jumper configuration.
The drive also provides embedded I/O, making it practical for integration into industrial machine-control systems.
Its DB transistor provides support for external dynamic braking, which can be useful in conveyors, feeders, rollers, packaging machines and other equipment where controlled deceleration is important.
The product is particularly suitable for conveyors, packaging equipment, feeders, pumps, fans, blowers, rollers, material-handling systems, auxiliary machinery and general industrial automation equipment.
From an engineering standpoint, one of its biggest strengths is the combination of a relatively compact Frame 1 package and the broader capabilities of the PowerFlex 753 platform.
For applications around the 1.5 kW motor class, the 20F11RC3P5JA0NNNNN provides a useful balance between motor capacity, cabinet integration, control flexibility and industrial functionality.
For smaller motors, the 20F11RC2P1JA0NNNNN is a logical step down.
For approximately 2.2 kW applications, the 20F11RC5P0JA0NNNNN provides additional current capacity.
For larger machines, the 20F11RC8P7JA0NNNNN and 20F11RC015JA0NNNNN provide progressively higher PowerFlex 753 ratings.
For applications where physical size and simpler machine integration are more important, PowerFlex 525 or PowerFlex 40 models may be worth considering.
Overall, the 20F11RC3P5JA0NNNNN can be summarized as a 400 VAC, 3-phase, 3.5 A, 1.5 kW normal-duty, 0.75 kW heavy-duty, Frame 1 PowerFlex 753 AC drive with embedded I/O, forced-air cooling, IP20 open-type construction, EMC filtering, installed CM capacitor jumper, dynamic-braking transistor, AC input with precharge, DC terminals and blank/no-HIM configuration.
It is a strong choice for industrial machines that need reliable variable-speed AC motor control while retaining room for a more sophisticated automation architecture.