Allen-Bradley 20G11ND077AA0NNNNN Air-Cooled AC Variable Frequency Drive (VFD)

FAQ

Q1: What is the Allen-Bradley 20G11ND077AA0NNNNN used for?
A: It is designed for controlling three-phase AC motors in applications such as pumps, fans, conveyors, compressors, mixers, and other industrial machinery requiring precise speed and torque regulation.

Q2: What are the electrical ratings of this drive?
A: The drive operates on 480 VAC, three-phase input power and provides 77 A output current. It is rated for 60 HP (Normal Duty) and 50 HP (Heavy Duty) applications.

Q3: Does the 20G11ND077AA0NNNNN include a built-in braking transistor?
A: Yes. The drive includes an internal dynamic braking (DB) transistor, allowing connection of an external braking resistor for applications requiring rapid deceleration.

Q4: What communication interface is included?
A: This model comes with embedded EtherNet/IP, enabling seamless integration with Rockwell Automation Logix controllers and industrial Ethernet networks.

Q5: Does this drive include a Human Interface Module (HIM)?
A: No. The 20G11ND077AA0NNNNN is supplied as Blank (No HIM). A compatible PowerFlex HIM can be installed separately for local programming and diagnostics.

Q6: What are the dimensions and weight of the drive?
A: The approximate dimensions are 550 × 270 × 212 mm (H × W × D), and the approximate weight is 21 kg.

Q7: Is this model still available?
A: No. Rockwell Automation discontinued the 20G11ND077AA0NNNNN on June 30, 2024. The recommended replacement is 20G11ND077JA0NNNNN, which features the preferred CM jumper installed configuration.

Q8: What should be checked before installation?
A: Before commissioning, verify the incoming 480 VAC power supply, motor nameplate data, grounding, cabinet ventilation, EtherNet/IP network configuration, braking resistor sizing, and drive parameter settings to ensure safe and reliable operation.

20G11ND077AA0NNNNN Allen Bradley

We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.

For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.

Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.