We supply the ACS550-01-031A-4, a robust ABB ACS550 General Purpose Drive engineered for precise speed and torque regulation in industrial environments. This unit is designed to control standard AC induction motors, delivering a rated output current of 31A and a power capacity of approximately 15kW (20HP). As a global supplier, we ensure that every unit shipped is 100% original, brand new, and ready for immediate integration into your automation system.
Our inventory supports critical maintenance schedules, offering reliable stock for this ACS550 Variable Speed Drive. The drive is optimized for a wide range of load types, handling variable torque applications like centrifugal pumps and fans as efficiently as constant torque loads found in conveyors and mixers. Since the ACS550 series is a staple in many existing facilities, we maintain stock to facilitate quick legacy replacements, helping you avoid costly system redesigns or extended downtime.
Key Operational Features:
This drive combines straightforward installation with advanced vector control capabilities, making it the preferred choice for engineers seeking durability and ease of use.

When integrating the acs550 01 031a 4 into your automation system, precise electrical data is critical for ensuring compatibility with your existing Industrial Motor Control 31A setup. We provide this ABB 15kW AC Drive fully tested and ready for immediate deployment. The unit is engineered to handle standard industrial power grids with robust tolerance for fluctuations.
Below is the detailed performance data for this Frame Size R3 VFD:
| Specification Category | Technical Parameter |
|---|---|
| Model Code | ACS550-01-031A-4 |
| Input Voltage | 3-Phase, 380V – 480V AC |
| Input Frequency | 48 – 63 Hz |
| Output Current (Normal Use) | 31.0 A |
| Output Current (Heavy Duty) | 23.0 A |
| Motor Power (Normal Use) | 15 kW (20 HP) |
| Motor Power (Heavy Duty) | 11 kW (15 HP) |
| Enclosure Rating | IP21 Enclosure Drive (NEMA 1) |
| Frame Size | R3 |
The acs550 01 031a 4 is designed for versatility. In normal use applications, such as fans and pumps, it delivers the full 31A output. For constant torque applications requiring high overload capacity, such as conveyors, the drive is rated at 23A.
We stock this 3-Phase 380V Inverter to help you minimize downtime. Whether you are replacing a legacy unit or building a new panel, these specifications confirm that the ACS550-01-031A-4 is the correct fit for your 15kW/20HP motor requirements.
When we supply the ACS550-01-031A-4, we are providing a solution that balances sophisticated control with ease of use. This ABB ACS550 General Purpose Drive is engineered to handle the rigorous demands of US industrial facilities, offering features that reduce installation time and improve system reliability.
The standout feature here is the Flux Vector Control. Unlike basic V/Hz drives, this ABB Vector Control Drive delivers superior torque response and speed accuracy, ensuring your motors run efficiently even under shifting loads. We also value the integrated design that removes the need for external components, making panel builds cleaner and more cost-effective.
| Feature | Benefit |
|---|---|
| Swinging Choke | Patented technology that reduces harmonics by up to 25% compared to standard chokes, extending equipment life. |
| Built-in EMC Filter | Comes standard with a Category C2 filter (1st environment), minimizing high-frequency noise and interference. |
| Connectivity | Native Modbus RS-485 interface allows seamless integration into existing automation networks without extra hardware. |
| Assistant Control Panel | Features a multilingual alphanumeric display with start-up assistants for quick parameter configuration. |
For facilities looking to upgrade or replace legacy equipment, the ACS550 series remains a top choice due to its robust architecture and the ability to handle both variable and constant torque applications effectively.
The acs550 01 031a 4 is engineered to handle a diverse range of industrial tasks, making it a staple in facilities across the United States. As a general-purpose drive, it balances precise speed control with energy efficiency, which is critical for reducing operational costs in heavy-duty environments. Whether you are upgrading an existing line or maintaining legacy equipment, this ABB 15kW AC Drive delivers reliable performance where it counts.
We frequently supply this unit for the following primary applications:
Selecting the right inverter for automation systems is essential for minimizing downtime. The ACS550 series remains a top choice for engineers requiring a robust, “install-and-forget” solution for standard induction motors.
Getting the acs550 01 031a 4 up and running requires attention to thermal management and proper cabling. As a Frame Size R3 VFD, this unit is designed for wall mounting, but you must ensure adequate vertical airflow to prevent overheating. We always advise checking the ACS550-01-031A-4 Manual for the exact clearance dimensions, usually requiring several inches above and below the unit to allow the internal fans to function correctly.
For electrical integration, standard procedures for a 3-Phase 380V Inverter apply. Ensure your input power connects to terminals U1, V1, W1 and the motor connects to U2, V2, W2. If you are browsing our full catalog of automation products to replace a legacy drive, the ACS550 series simplifies the transition. You can easily upload parameters from an old drive to the new one using the detachable ABB Assistant Control Panel, significantly reducing downtime during maintenance swaps.
Key Installation Checkpoints:
At CNCDOMI, we understand that when a production line goes down, speed is everything. We rely on trusted global logistics partners like DHL, FedEx, UPS, and TNT to deliver your acs550 01 031a 4 quickly and reliably. Whether you are located in a major US industrial hub or a remote facility, we ensure your package is tracked every step of the way to over 100 countries.
We take the risk out of sourcing ABB Drive Spare Parts with our rigorous quality assurance standards:
We frequently field questions from facility managers and engineers regarding the specifics of this ABB ACS550 general purpose drive. Below are the essential details to help you confirm this is the right unit for your maintenance needs.
Is the ACS550-01-031A-4 interchangeable with the ACS580 series? While the ACS580 is the modern successor, many US facilities prefer the ACS550-01-031A-4 for legacy replacements to avoid modifying mounting backplates or control logic. We supply original ABB drive spare parts to ensure a direct drop-in replacement. If you are considering a full system upgrade, you can also browse our complete inventory of variable frequency drives for the latest technology.
What is the physical frame size of this unit? This specific 31A, 480V model is a Frame Size R3 VFD. It is crucial to verify this dimension to ensure it fits your existing IP21 or IP54 enclosure without requiring additional clearance modifications.
Do you provide technical support for configuration? Yes. Whether you need the ACS550-01-031A-4 Manual or advice on using the ABB Assistant Control Panel to copy parameters from a failed drive to a new one, our team supports you. We ensure you have the data needed to get your ABB 15kW AC drive running immediately after installation.