Product Overview
When production lines demand precise motor control and reliable operation under heavy loads, the Allen-Bradley 20F11NC104JA0NNNNN delivers. This variable frequency AC drive from the PowerFlex 753 series is engineered to handle 104 Amps of continuous current, making it a robust choice for industrial automation applications. Operating on a three-phase input with a voltage class of 400V AC / 540V DC, the 20F11NC104JA0NNNNN ensures efficient power conversion and smooth motor speed regulation.
The drive comes in a compact Frame 5 enclosure rated IP20/IP00 (NEMA/UL Type Open), suitable for most industrial environments. With a normal duty power rating of 55 kW, it provides ample torque for demanding processes. The unit includes embedded I/O and three option slots, allowing for flexible integration of feedback, safety, or communication modules.
Technical Specifications
The following table summarizes the key parameters of the Allen-Bradley 20F11NC104JA0NNNNN, sourced directly from the manufacturer's data:
| Specification |
Value |
| Manufacturer |
Allen Bradley |
| Product Type |
Variable Frequency AC Drive |
| Product Line |
PowerFlex 753 |
| Part Number |
20F11NC104JA0NNNNN |
| UPC |
884951166424 |
| Weight |
125.00 lbs (56.70 kg) |
| Human Interface Module (HIM) |
Not included (plastic cover installed) |
| Rated Current |
104 Amps |
| Voltage Class |
400V AC / 540V DC |
| Phase |
3-phase input |
| Frame Size |
Frame 5 |
| Power Rating |
Normal Duty: 55 kW |
| Enclosure Type |
IP20/IP00, NEMA/UL Type Open |
| Cooling Method |
Air-cooled |
| Embedded I/O |
Included |
| Option Slots |
3 available (feedback, safety, communication) |
| Dynamic Braking Transistor |
Yes (Included) |
| Default CM Cap Connection |
Jumper Installed |
The 20F11NC104JA0NNNNN is configured as an air-cooled, open-type drive with 400V AC 3-phase input. It includes a pre-charge circuit and a common mode capacitor jumper pre-installed, simplifying installation.
Key Benefits & Performance
With a rated current of 104 Amps and a 55 kW normal duty rating, the Allen-Bradley 20F11NC104JA0NNNNN offers substantial headroom for motor starting and overload conditions. The built-in dynamic braking transistor enables rapid deceleration, reducing cycle times and improving process efficiency. The air-cooled design ensures consistent thermal performance, even in warm environments, minimizing the risk of overheating and downtime.
The three option slots provide flexibility to add communication adapters (e.g., EtherNet/IP, PROFIBUS) or safety cards, future-proofing your investment. The embedded I/O reduces the need for external PLC I/O modules, lowering overall system cost.
Installation & Setup
Proper installation is critical for optimal performance. The 20F11NC104JA0NNNNN should be mounted on a flat, vertical surface with adequate clearance for airflow. Refer to the user manual for torque specifications on power and control wiring. The unit comes with a plastic cover in place of the HIM; ensure the cover is secured before energizing.
Before power-up, verify that the input voltage matches the drive's rated voltage class (400V AC / 540V DC). The common mode capacitor jumper is pre-installed; do not remove it unless your system design requires isolation. Use shielded cables for control wiring to minimize electromagnetic interference.
Maintenance & Reliability
Regular maintenance extends the life of your drive. Inspect the cooling fans and air filters quarterly and clean them as needed to prevent dust buildup. Check all power connections annually for tightness and signs of corrosion. The air-cooled design reduces the risk of component failure due to overheating, contributing to long-term reliability and lower total cost of ownership.
Because the 20F11NC104JA0NNNNN includes a dynamic braking transistor, verify the braking resistor (if used) is properly sized and connected to avoid overvoltage faults. Keep the enclosure clean and free of conductive debris.
Selection Guide
When selecting a replacement or new drive, confirm that the electrical ratings (voltage, current, phase) match your motor and supply. The 20F11NC104JA0NNNNN is ideal for applications requiring 55 kW normal duty output. Check the frame size (Frame 5) to ensure physical fit in your panel. If you need a HIM, note that it is not included with this model; a plastic cover is installed, so you may need to purchase a HIM separately.
PLC Source PRO offers this Allen-Bradley 20F11NC104JA0NNNNN drive with fast shipping and competitive pricing. Our team can assist with compatibility questions.