
ABB - Low Voltage Drives
ACS550-U1-221A-2
Alternate Item Number: 3AUA0000003772
UPC: 662348050743
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Overview
The ABB ACS550-U1-221A-2 is a robust AC drive engineered for reliable motor control in industrial settings. This unit features a 75HP power rating and a substantial 221A current capacity, designed to handle demanding applications. Its input voltage range of 200-240V makes it suitable for various power configurations. The drive is equipped with a 1.1 overload capability, ensuring consistent performance even under temporary current surges, thereby protecting connected equipment and extending operational life. The enclosure is rated Type 1/IP21, providing protection against dust and light water splashing, making it appropriate for use in many industrial environments. With physical dimensions of 35 x 11.9 x 15.8 inches, the ACS550-U1-221A-2 is designed for efficient wall mounting, optimizing space utilization within control panels or on factory floors. This drive is ideal for applications such as pumps, fans, conveyors, and general machinery in manufacturing, material handling, and HVAC systems. It offers advanced control features for precise speed regulation and contributes to energy savings through efficient motor operation. The ACS550 series is known for its ease of integration with existing control systems and straightforward commissioning. Manufactured by ABB, a leader in low-voltage drives, this model (SKU: ACS550-U1-221A-2) delivers the quality and dependability expected for critical industrial processes.
- 75HP motor power rating
- 221A continuous current capacity
- 200-240V AC input voltage
- Type 1/IP21 enclosure for protection
- 1.1 overload capability for demanding loads
- Wall-mount design for space efficiency
- Manufactured by ABB - Low Voltage Drives
Specifications
Control Panel | Advanced |
Current Rating | 221A |
Frame Size | R6 |
Input Phase | 3-Phase |
IP Rating | IP21 |
Mounting Type | Wall |
NEMA Rating | Type 1 |
Output Current | 221 |
Output Phase | 3-Phase |
Series | ACS550 |
Size | 35 x 11.9 x 15.8 in |
UL Type | 1 |
Voltage | 240 |
Voltage Range | 208-240 |
Voltage Rating | 3-200-240V |
Package Dimensions (L x W x H) | 15.8 in x 11.9 in x 35 in |
Package Dimensions (L x W x H) | 40.132 cm x 30.226 cm x 88.9 cm |
Package Weight (Imperial) | 152.000 L |
Package Weight (Metric) | 68.947 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.














