
ABB - Low Voltage Drives
ACS550-U1-038A-4+L511
Alternate Item Number: 3AUA0000078433
UPC: 662348047491
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Overview
The ABB ACS550-U1-038A-4+L511 is a robust AC drive engineered for reliable motor control in industrial settings. This unit from ABB Low Voltage Drives offers a 25HP power rating and a continuous current capacity of 38A, operating efficiently within a 3-phase voltage range of 380-480V. Its enclosure is rated Type 1 / IP21, providing protection against dust and light water splashes, suitable for various industrial environments. The drive features a 1.1 overload capacity, ensuring stable operation under transient load conditions. Advanced control algorithms are integrated for precise speed and torque management. Designed for ease of installation, it measures 23 x 8 x 9.1 inches and is wall-mountable. The inclusion of relay output extensions enhances its flexibility for integration into automation systems and process control loops. This ABB ACS550 drive is an effective solution for applications such as pumps, fans, conveyors, and other general machinery requiring dependable motor speed regulation and energy efficiency. Its UNSPSC code is 39122001, and it is manufactured in Denmark.
- 25HP / 38A Power Rating
- 3-Phase 380-480V Input Voltage
- Type 1 / IP21 Enclosure
- 1.1 Overload Capacity
- Wall-Mountable Design with Relay Output Extension
Specifications
Control Panel | Advanced |
Current Rating | 38 A |
Frame Size | R3 |
Input Phase | 3-Phase |
IP Rating | IP21 |
Mounting Type | Wall |
Options | Relay output extension |
Output Current | 38 |
Output Phase | 3-Phase |
Series | ACS550 |
Size | 23 x 8 x 9.1 in |
UL Type | 1 |
Voltage | 480 |
Voltage Range | 380-480 |
Voltage Rating | 380-480 V |
Package Dimensions (L x W x H) | 9.1 in x 8 in x 23 in |
Package Dimensions (L x W x H) | 23.114 cm x 20.32 cm x 58.42 cm |
Package Weight (Imperial) | 35.000 L |
Package Weight (Metric) | 15.876 kg |

FENA-21
The FENA 21 DualPort module supports Three protocols Modbus-TCP, EtherNet/IP, and the PROFInet IO RT network. The Modbus-TCP protocol is simply the Modbus protocol used on top of Ethernet-TCP/IP. Modbus-TCP is an open Industrial Ethernet network which has been specified by the Modbus-IDA User Organization. EtherNet/IP is based on the Common Industrial Protocol (CIP), which is also the framework for both the ControlNet and DeviceNet network protocols. PROFInet IO RT is an open network based on the PI Organization standard.








