ABB 3AUA0000039663 Motors & Drives - UL 7.5 HP 460 V
Part Number: 3AUA0000039663
Quick Summary
ACS320 HVAC microdrive from ABB delivers precise speed control for pumps and fans in commercial HVAC systems. Many installations struggle with energy waste and inconsistent performance when integrating variable-speed drives with building management systems. This device brings UL-listed safety, embedded BACnet MS/TP for seamless BMS integration, and a 460 V three-phase supply to meet HVAC OEM needs. By combining compact size, straightforward installation, and ABB reliability, it helps customers reduce energy use, simplify commissioning, and lower total cost of ownership over the life of the system. Designed for OEMs and service teams, ACS320 enables scalable, future-proof HVAC drives for retrofit and new-build projects.
Product Information
Extended Description
3AUA0000039663 ABB: The compact ACS320 will save energy throughout your pump and fan HVAC applications. From booster pumps, exhaust and condenser fans to supply and return fans, the drive=E2=80=99s built-in HVAC features such as embedded BACnet (MS/TP) ensure easy and complete integration into building management systems.
Feature: Compact, integrated drive reduces panel footprint and simplifies wiring. Business Impact: Faster commissioning, lower enclosure costs, and easier field service. Application: OEM pump and fan assemblies in packaged HVAC units. Feature: Energy-efficient speed control with precise modulation. Business Impact: Notable energy savings and reduced wear on motors, lowering operating costs. Application: Booster pumps, exhaust and condenser fans in large facilities. Feature: Built-in BACnet MS/TP enables seamless BMS integration. Business Impact: Centralized monitoring and control, simplified fault detection, and better demand-response capability. Application: Modern commercial buildings and light industrial HVAC systems. Feature: 7.5 HP, 460 V three-phase power rating with 18.8 A current draw. Business Impact: Clear electrical sizing, improved startup behavior, and compatibility with standard HVAC power rails. Application: OEM HVAC pumps and fans operating under demanding load profiles. Feature: ABB reliability and compact form factor address retrofit and new-install projects. Business Impact: Lower maintenance costs, faster deployment, and dependable performance in challenging environments. Application: Retrofit upgrades and new-build HVAC installations across office, retail, and manufacturing facilities.
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FAQs
The ACS320-03U-12A5-4 is designed for three-phase HVAC applications, delivering 7.5 HP at 460 V with a rated current of 18.8 A. It provides precise speed control for pumps and fans, enabling smooth ramping, reduced mechanical stress, and improved process stability. Its built-in BACnet MS/TP also facilitates direct integration with modern building management systems, simplifying monitoring and control from central dashboards.
When replacing an existing drive, verify supply voltage and phase compatibility (460 V three-phase) and ensure the motor is within the 7.5 HP rating. Plan for wiring changes to accommodate the ACS320’s inputs and outputs, and provision for its BACnet MS/TP connection for BMS compatibility. Its compact footprint can simplify panel reorganization, reducing enclosure space and wiring complexity during retrofit projects.
Yes. The ACS320 includes embedded BACnet MS/TP support, enabling direct communication with BACnet-compatible building management systems. This simplifies supervision, fault diagnostics, and energy management for HVAC pumps and fans. For projects requiring additional networks, use standard fieldbus interfaces and ensure proper network segmentation to maintain reliability.
The ACS320 HVAC microdrive is associated with UL-listed safety credentials, supporting safer operation in commercial HVAC environments. For projects in markets requiring CE or IP ratings, verify local documentation and enclosure protection specifications, as these may vary by region and installation type. Always reference the latest ABB datasheet for definitive certification details.
Expected ROI comes from energy savings through precise speed control, reduced motor wear, and shorter commissioning times due to easier BACnet integration. The compact design lowers panel and wiring costs, while ABB’s reliability reduces downtime and maintenance needs. Over key retrofit cycles and new installations, these factors combine to lower total cost of ownership and improve system availability.