Introduction – A Versatile 480V PowerFlex 753 Drive

The Allen Bradley 20F11ND027JA0NNNNN is part of the PowerFlex 753 AC drive family, developed for industrial applications that require dependable variable-speed motor control. Its 27 A output rating supports motors up to 20 HP in Normal Duty operation and 15 HP in Heavy Duty operation.

This configuration includes embedded I/O, standard protection, forced-air cooling, integrated filtering, and a dynamic braking transistor. It uses an AC input with DC terminals and is supplied without a local Human Interface Module. These characteristics are important when selecting the drive for a new machine or assessing its suitability as a replacement unit.

The PowerFlex 753 platform also provides options for communication and feedback expansion. With appropriate configuration, the drive can be integrated into a broader automation system while supporting application-specific motor-control requirements.

Technical Specifications – Electrical and Mechanical Data

Parameter	Specification
Brand	Allen Bradley
Model	20F11ND027JA0NNNNN
Product Series	PowerFlex 753
Product Type	AC Drive
Voltage Class	480V AC
Input Phase	3-phase
Output Current	27 A
Normal Duty Power	20 HP / 14.9 kW
Heavy Duty Power	15 HP / 11.2 kW
Frame Size	Frame 3
Cooling Method	Forced air
Protection	Standard protection
Input Configuration	AC input with DC terminals
I/O	Embedded I/O
Dynamic Braking	Internal braking transistor
EMC Filtering	Filtered, CM jumper installed
Enclosure Rating	IP20/IP00, NEMA/UL Open Type
Human Interface Module	Not included
Dimensions	454 × 212 × 190 mm
Weight	11.8 kg / 26.01 lb

Recommended Related Models – PowerFlex 753 Drive Options

The following models provide alternative configurations within the PowerFlex 753 family. Check voltage class and current ratings carefully when considering a replacement.

Model	Product Description
20F11ND014JA0NNNNN	PowerFlex 753 AC Drive, 480V, 14 A
20F11ND022JA0NNNNN	PowerFlex 753 AC Drive, 480V, 22 A
20F11ND027JA0NNNNN	PowerFlex 753 AC Drive, 480V, 27 A
20F11NE027JA0NNNNN	PowerFlex 753 AC Drive, 600V, 27 A

Popular Related Models – PowerFlex Accessories

20F11ND022JA0NNNNN – PowerFlex 753 AC Drive, 480V, 22 A
20F11ND027JA0NNNNN – PowerFlex 753 AC Drive, 480V, 27 A
20F11NE027JA0NNNNN – PowerFlex 753 AC Drive, 600V, 27 A
20-750-ENC-1 – PowerFlex 750 Series Incremental Encoder Module

When selecting a replacement or accessory, verify the supply voltage, motor current, duty rating, frame size, braking requirements, and communication options. A drive with a similar current rating may still have different electrical or mechanical requirements.

Applications – Industrial Motor-Speed Regulation

The 20F11ND027JA0NNNNN is suitable for machinery that requires adjustable motor speed, controlled acceleration, and integration with an industrial automation system.

Pumping installations: Regulates motor speed in water circulation, fluid transfer, and industrial pumping systems.
Fans and ventilation: Controls airflow in industrial ventilation, extraction, and HVAC equipment.
Conveyor lines: Supports variable-speed operation in material-handling and manufacturing processes.
Packaging machinery: Provides adjustable motor control for compatible packaging and processing equipment.
Production machinery: Integrates into automated machines requiring flexible speed regulation.
Process equipment: Supports motor-driven equipment in general manufacturing and industrial processing.

Advantages – Flexible Drive Configuration

20 HP Normal Duty capacity

The drive provides a 20 HP Normal Duty rating and a 15 HP Heavy Duty rating, allowing users to select the appropriate operating category for the motor load.

Embedded I/O

Onboard I/O supports selected control and status signals, helping simplify connections between the drive and the machine-control system.

Integrated dynamic braking transistor

The built-in braking transistor supports controlled deceleration. A compatible external braking resistor may be required depending on the load inertia and stopping requirements.

Filtered electrical configuration

The drive is supplied with filtering and the common-mode jumper installed. These features should be considered when designing grounding and motor-cable arrangements.

Forced-air cooling

Forced-air cooling helps remove heat generated during operation. Adequate ventilation and installation clearances are important for maintaining suitable operating temperatures.

Expandable automation platform

The PowerFlex 753 family supports optional communication and feedback modules, providing flexibility for integration with different industrial control architectures.

Technical FAQs – Installation and Operation

Q1: What is the rated output current of the 20F11ND027JA0NNNNN?

A: The drive has a rated output current of 27 A.

Q2: What are its Normal Duty and Heavy Duty power ratings?

A: It is rated at 20 HP (approximately 14.9 kW) for Normal Duty and 15 HP (approximately 11.2 kW) for Heavy Duty operation.

Q3: What supply voltage does this model require?

A: It is designed for a 480V AC, three-phase power system. The specified operating voltage range and site supply conditions should be checked before installation.

Q4: Does this drive include embedded I/O?

A: Yes. Embedded I/O is included for supported control and status connections. Refer to the product wiring documentation for terminal assignments and electrical limits.

Q5: Does the drive have an internal braking transistor?

A: Yes. A dynamic braking transistor is included. An external braking resistor may be needed to achieve the required deceleration performance.

Q6: Is a Human Interface Module supplied with this model?

A: No. This configuration is supplied without a HIM. A compatible operator interface can be purchased separately for local programming and monitoring.

Q7: What is the drive's input configuration?

A: It uses an AC input with DC terminals. This arrangement should be considered when planning the power connections or replacing an existing drive.

Q8: What type of cooling does the drive use?

A: The unit uses forced-air cooling. Keep the ventilation paths clear and follow the manufacturer's recommended installation clearances.

Q9: Can the PowerFlex 753 communicate with a PLC?

A: The platform supports optional communication modules for compatible industrial networks. The required module depends on the PLC and network protocol.

Q10: What should be checked if the drive reports an overcurrent fault?

A: Review the fault history and inspect the motor cable, motor condition, mechanical load, acceleration settings, and output wiring. Identify and correct the cause before resetting the drive.

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