
ABB - Low Voltage Drives
ACS550-U1-075A-2+K451
Alternate Item Number: 3AUA0000011901
UPC: 662348049204
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Overview
The ABB ACS550-U1-075A-2+K451 is a versatile AC drive engineered for precise motor control in industrial applications. This unit features a robust 25 horsepower (HP) output and a continuous current rating of 74.8 Amps, designed to handle demanding loads. It operates with an input voltage range of 200-240V AC, making it suitable for a wide spectrum of power configurations.
The ACS550 drive is built with an advanced control architecture, offering a 1.1 overload capacity to protect against temporary current surges and ensure operational reliability. Its enclosure is rated Type 1 / IP21, providing protection against solid foreign objects larger than 12mm and vertically falling water droplets, making it appropriate for many industrial environments where dust and light moisture may be present.
For enhanced connectivity and integration into automated systems, this model includes DeviceNet communication capabilities. This allows for efficient data exchange and control within distributed industrial networks.
Installation flexibility is a key benefit, with compact dimensions of 27.1 inches in height, 8 inches in width, and 10.3 inches in depth. The drive is designed for wall mounting, facilitating placement in various control panels and machine layouts. The country of origin for this ABB drive is Denmark.
Ideal applications include pumps, fans, conveyors, and general machinery in sectors such as manufacturing, HVAC, and process automation. The ACS550 series is recognized for delivering energy savings through efficient motor speed regulation and improved process efficiency. The UNSPSC code for this product is 39122001, categorizing it under Variable speed drives.
- 25 HP motor output and 74.8A continuous current rating
- 200-240V AC input voltage range
- Type 1 / IP21 enclosure for protection
- DeviceNet communication for system integration
- Compact dimensions (27.1 x 8 x 10.3 in) with wall-mount capability
Specifications
Control Panel | Advanced |
Current Rating | 74.8A |
Frame Size | R4 |
Input Phase | 3-Phase |
IP Rating | IP21 |
Mounting Type | Wall |
NEMA Rating | Type 1 |
Options | DeviceNet |
Output Current | 74.8 |
Output Phase | 3-Phase |
Series | ACS550 |
Size | 27.1 x 8 x 10.3 in |
UL Type | 1 |
Voltage | 240 |
Voltage Range | 208-240 |
Voltage Rating | 3-200-240V |
Package Dimensions (L x W x H) | 10.3 in x 8 in x 27.1 in |
Package Dimensions (L x W x H) | 26.162 cm x 20.32 cm x 68.834 cm |
Package Weight (Imperial) | 53.000 L |
Package Weight (Metric) | 24.041 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.












