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

Overview

The ABB ACS550-U1-078A-4, identified by Product ID 3AUA0000009443, is a high-performance 50 HP variable frequency drive (VFD) meticulously engineered for diverse industrial and commercial motor control applications. This robust unit delivers reliable and energy-efficient operation for 3-phase, 380–480 V systems, making it an ideal choice for enhancing productivity and reducing operational costs. Its compact IP21 wall-mountable design ensures seamless integration into a wide range of environments, even where space is at a premium.

As part of ABB's esteemed ACS550 series, this general-purpose AC drive combines advanced functionality with user-friendly features. From its integrated safety functions like Safe Torque Off (STO) to its built-in EMC filter, the ACS550-U1-078A-4 is designed to meet the rigorous demands of modern automation, providing precise motor control and safeguarding your operations.

Key Features

• Motor Power: 37 kW (50 HP) – Optimally controls powerful industrial motors.
• Input Voltage: 380–480 V AC, 3-phase – Compatible with standard industrial power supplies.
• Output Current: 78 A – Delivers robust current for demanding applications.
• Output Frequency: 0 to 500 Hz – Provides wide-ranging speed control flexibility.
• Control Methods: Scalar (V/f), Sensorless Vector – Offers versatile motor control strategies for various loads.
• Overload Capacity:
  • Heavy Duty: 150% for 60 sec – Handles temporary peak loads with ease.
  • Normal Duty: 110% for 60 sec – Ensures stable operation under typical conditions.
• Built-in EMC Filter: Category C2 – Minimizes electromagnetic interference for compliant operation.
• Safety Function: Safe Torque Off (STO) – Enhances operator safety and simplifies machine design.
• Communication: Modbus RTU (RS-485) – Enables seamless integration into existing control networks.
• User Interface: Integrated keypad with navigation assistant – Facilitates easy setup and monitoring.
• Enclosure Type: IP21 wall-mounted – Provides protection against dust and dripping water, suitable for indoor use.
• Cooling Method: Forced air cooling – Ensures optimal performance and longevity.

Technical Specifications

• Model Number: ACS550-U1-078A-4
• Global Commercial Alias: ACS550-U1-078A-4
• Product ID: 3AUA0000009443
• ABB Type Designation: ACS550-U1-078A-4
• Input Frequency: 50/60 Hz
• 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: Approx. 17.3 kg
• Certifications: CE, UL, cUL – Guarantees compliance with international standards.

Applications

The versatility and robust design of the ABB ACS550-U1-078A-4 make it suitable for a broad spectrum of industrial and commercial applications, including:

• Industrial Ventilation and HVAC: Precisely control fans and blowers for optimal air quality and energy savings.
• Pumping Systems: Enhance the efficiency and longevity of pumps in water treatment, irrigation, and industrial processes.
• Conveyor Systems: Ensure smooth and controlled material handling in manufacturing and logistics.
• General-Purpose Automation and Processing: Adaptable for various machinery requiring reliable and variable speed control.

Why Choose This Model?

The ABB ACS550-U1-078A-4 stands out as a premier choice for businesses seeking an efficient and dependable variable frequency drive:

• Powerful and Compact Solution: Expertly designed to manage 50 HP motors efficiently within a space-saving IP21 enclosure.
• Fast Installation and Configuration: The integrated keypad with navigation assistant streamlines setup, reducing commissioning time and effort.
• Integrated EMC and STO Safety: Built-in features ensure operational safety and regulatory compliance, offering peace of mind.
• Ideal for Various Industrial Applications: Its adaptability and robust performance make it a valuable asset across numerous sectors.
• Energy Efficiency: Optimize motor performance to significantly reduce energy consumption and operational costs.
• Reliability: ABB's reputation for quality and durability is embedded in every unit, ensuring long-term, trouble-free operation.

Order Now

Invest in the superior performance and reliability of the ABB ACS550-U1-078A-4 variable frequency drive. This essential component for modern industrial automation is available for global delivery, backed by comprehensive technical support and detailed documentation to ensure seamless integration and operation.

Return to the ABB ACS550 General Purpose Drives collection or explore the broader ABB Industrial Drives main category to discover more innovative solutions for your industrial needs.