ABB ACS550-U1-078A-4 | 3AUA0000009443

Overview

The ABB ACS550-U1-078A-4, identified by product ID 3AUA0000009443, is a robust and highly efficient 50 HP variable frequency drive (VFD) from ABB's acclaimed ACS550 series. This general-purpose AC drive is meticulously engineered for optimal control and energy savings in a wide array of industrial and commercial motor applications. With its 3-phase, 380–480 V input and 78 A output, it delivers precise motor speed and torque regulation, making it an indispensable component for modern automation environments. Its compact, IP21 wall-mountable design ensures easy integration even in space-constrained installations, while built-in safety and electromagnetic compatibility features guarantee reliable and compliant operation.

Designed for simplicity and advanced functionality, the ACS550-U1-078A-4 streamlines operations with its intuitive interface and assistant-guided configuration, minimizing commissioning time. This drive represents ABB’s commitment to providing powerful, energy-efficient, and user-friendly solutions that enhance productivity and reduce operational costs across diverse sectors. Whether it's for complex HVAC systems, critical pumping stations, or demanding conveyor lines, this VFD provides the superior control and reliability necessary for sustained performance.

Key Features

• Powerful 50 HP (37 kW) motor control for demanding applications.
• Integrated Safe Torque Off (STO) function for enhanced operational safety.
• Built-in Category C2 EMC filter, reducing electromagnetic interference.
• IP21 enclosure for reliable indoor wall-mounted protection.
• Flexible control methods including Scalar (V/f) and Sensorless Vector.
• Modbus RTU (RS-485) communication protocol for seamless integration.
• User-friendly integrated keypad with navigation assistant for quick setup.

Technical Specifications

• Model Number: ACS550-U1-078A-4
• Product ID: 3AUA0000009443
• Series: ABB ACS550 General Purpose Drives
• Motor Power: 37 kW (50 HP)
• Input Voltage: 3-phase, 380–480 V AC
• Output Current: 78 A
• Output Frequency: 0 to 500 Hz
• Input Frequency: 50/60 Hz
• Overload Capacity: 150% for 60 sec (Heavy Duty), 110% for 60 sec (Normal Duty)
• Analog Inputs: 2
• Digital Inputs: 6
• Analog Outputs: 2
• Relay Outputs: 3
• Operating Temperature: -10°C to +50°C
• Dimensions (H x W x D): 600 mm x 203 mm x 229 mm
• Weight: Approximately 17.3 kg
• Certifications: CE, UL, cUL

Applications

• Industrial ventilation systems and Heating, Ventilation, and Air Conditioning (HVAC).
• Pumping systems in water treatment, irrigation, and building services.
• Conveyor systems for material handling and logistics.
• General-purpose automation and processing machinery.
• Manufacturing plants requiring precise motor speed control.
• Textile machinery and food and beverage production lines.

Why Choose This Model?

• Optimized Energy Efficiency: Reduces power consumption and operating costs thanks to advanced motor control.
• Enhanced Safety: Integrated Safe Torque Off (STO) function provides peace of mind in critical applications.
• Reduced EMI: Built-in Category C2 EMC filter ensures compliance and minimizes electromagnetic interference with other equipment.
• Easy Installation & Configuration: Compact design and intuitive assistant-guided setup simplify deployment.
• Robust & Reliable: Designed for industrial environments with an IP21 enclosure and proven ABB quality.
• Versatile Application: Suitable for a broad range of industrial and commercial motor control needs.

Order Now

Elevate your motor control systems with the ABB ACS550-U1-078A-4 VFD. Experience unparalleled performance, energy efficiency, and reliability for your industrial applications. Available for global delivery, this drive comes with comprehensive technical support and documentation to ensure seamless integration and operation. Invest in ABB's trusted technology today and optimize your processes for peak productivity. Contact us now to place your order or inquire about tailored solutions.