Allen-Bradley 20F11ND077JA0NNNNN | PowerFlex 753 High-Performance AC Drive

Need reliable speed control for a large motor? This Allen-Bradley drive is built for the job. The 20F11ND077JA0NNNNN model delivers 60 HP (44.7 kW) of power. It works with 480V AC 3-phase systems. Perfect for pumps, fans, and conveyors in your factory.

Top Features at a Glance

• High Power Output: Controls motors up to 60 horsepower efficiently.
• Ready to Use: Comes with built-in I/O, a filter, and DC braking for easy setup.
• Flexible Power Input: Can connect to AC line power or external DC sources.
• Robust Cooling: Forced air system keeps the drive running cool under heavy loads.
• Industrial Tough: Designed for demanding 24/7 operation in harsh environments.

Full Technical Specifications

Brand & Model: Allen-Bradley 20F11ND077JA0NNNNN
Series: PowerFlex 753 AC Drive
Type: Variable Frequency Drive (VFD)
Output Power: 44.7 kW (60 HP Normal Duty, 50 HP Heavy Duty)
Output Current: 77 Amperes
Input Voltage: 480 Volts, 3-Phase, 47-63 Hz
DC Bus Voltage: 650 V DC
Frame Size: Frame 5
Enclosure: Open Type (requires a protective cabinet)
Cooling: Forced Air (Fan)
Braking: Internal Dynamic Braking Transistor
Standard Features: Embedded Digital & Analog I/O, EMI/RFI Filter, Common Mode Jumper Installed
Interface: No built-in keypad (requires separate HIM or software)
Operating Temperature: 0°C to 40°C (non-condensing)
Storage Temperature: -40°C to 70°C
Weight: Approx. 31.75 kg (70 lbs)

Installation & Setup Guide

1. Mount the 20F11ND077JA0NNNNN drive vertically in a clean, ventilated electrical cabinet.
2. Ensure the ambient temperature stays below 40°C.
3. Connect the 3-phase 480V AC power to the input terminals. Follow local electrical codes.
4. Wire your 3-phase motor to the drive's output terminals (U, V, W).
5. Connect control signals (start/stop, speed reference) to the embedded I/O terminals.
6. Use Rockwell Automation software (Studio 5000) or a separate Human Interface Module (HIM) to configure motor parameters and settings.
7. Always perform a start-up test at low speed without the load connected first.

Expert Answers to Common Questions

Why is there no keypad on this drive?
This model is designed for panel mounting where space is tight. You program it using a laptop with free software or a removable keypad that can be shared between multiple drives, which can be more cost-effective.

What does "DC Terminals" mean for the input?
It means you can also supply DC power directly to the drive's internal bus. This is useful if you have a common DC bus system in your facility or want to use a backup battery source.

Can I use this for a 50 HP motor running constantly?
Yes. The 50 HP Heavy Duty rating means it is perfectly suited for applications where the motor runs at full load for long periods, like a large pump or a ventilation fan.

Do I need an external braking resistor?
The drive has an internal braking transistor to handle normal deceleration. For applications with very high inertia loads that need to stop quickly, you may need to add an external resistor. Check your cycle time requirements.

Is the filter good enough for my sensitive factory network?
The included filter meets standard CE/UL requirements for electromagnetic interference. For environments with very sensitive digital equipment, you might consider an additional, higher-grade line filter for extra protection.

What's Included & Our Guarantee

Your order includes one genuine Allen-Bradley 20F11ND077JA0NNNNN AC Drive. We are confident in its quality and offer a 12-month warranty against defects. If any issue arises within a year of purchase, we will provide a replacement.

Fast & Reliable Delivery

Your drive will be shipped safely. We offer express options with major global carriers: FedEx, UPS, and DHL to get it to you quickly.

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