ABB ACS255-03U-46A0-2+B068 LV AC Micro Drive - IP66/NEMA 4X
Part Number: 3AUA0000232560
Quick Summary
The ABB ACS255 LV AC micro drive is a compact speed controller for pumps, fans, augers, and conveyors. It simplifies machine integration by delivering precise torque and speed control in a field-ready unit designed for harsh environments. The drive combines V/Hz control with sensorless vector control for both AC induction and PM motors, plus an IP66 / NEMA 4X enclosure to withstand washdown and corrosion. Featuring an integrated keypad and Modbus-RTU, it enables straightforward setup, real-time monitoring, and scalable control across production lines. UL-rated safety and rugged enclosure protection support reliable operation, lower downtime, and reduced energy consumption for modern automation applications.
Product Information
Extended Description
3AUA0000232560 ABB: The ACS255 drive comes in several variants ensuring seamless integration into machines. The UL (NEMA) TYPE 4X / IP66 ACS255 is constructed with corrosion resistant materials for durability and increased survival in wet, dirty, or washdown applications indoors or outdoors. Common application includes augers, mixers, pumps, fans and conveyors. The key features include an integrated keypad for easy configuration, precise process control with V/Hz control and sensorless vector control for both AC induction and PM motors, enhanced short circuit protection, operating mode selection with variable torque and constant torque V/Hz profiles, and embedded Modbus-RTU communication interface for real time control and monitoring.
Feature → Business Impact → Application: Sensorless vector control with V/Hz drive control enables precise motor torque and speed regulation across both AC induction and PM motors, improving process stability and energy efficiency in pumps and conveyors. This reduces wear, minimizes start-up spikes, and supports smoother ramping in demanding loads. Feature → Business Impact → Application: IP66 / NEMA 4X corrosion-resistant enclosure protects electronics in washdown environments, extending service life in food and beverage, pharmaceuticals, and outdoor installations. This minimizes maintenance costs and downtime while ensuring compliance with harsh process conditions. Feature → Business Impact → Application: Integrated keypad for on-site configuration accelerates commissioning and reduces wiring errors, shortening project timelines for OEM equipment and retrofit projects. Feature → Business Impact → Application: Embedded Modbus-RTU provides real-time control and SCADA visibility, enabling centralized monitoring, predictive maintenance, and easy integration with existing industrial networks. Feature → Business Impact → Application: Enhanced short-circuit protection and selectable torque profiles (variable and constant torque) improve safety, compliance, and startup reliability across fans, mixers, augers, and pumps. Feature → Business Impact → Application: Dual motor compatibility and compact footprint simplify installation in space-constrained panels, reducing hardware costs and simplifying future expansions.
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FAQs
When integrating the ACS255-03U-46A0-2+B068, ensure a 240 V AC supply with proper protective devices and shielded Modbus-RTU communication wiring. The device’s IP66/NEMA 4X enclosure supports washdown environments, reducing enclosure protection concerns. Plan for the integrated keypad for on-site configuration and use the sensorless vector control to optimize startup and ramp times for motors across pumps, fans, and conveyors.
Sensorless vector control provides precise torque and speed regulation without external sensors, delivering smoother starts, better speed accuracy, and enhanced torque at low speeds. This translates to steadier process control in applications like augers and mixers, reduced mechanical stress, and energy savings due to optimized motor operation across varying load conditions.
Yes. The ACS255 is built with corrosion-resistant materials and an IP66/NEMA 4X enclosure, making it well-suited for washdown settings found in food, beverage, pharmaceutical, and outdoor installations. Its rugged construction protects electronics from water, dust, and cleaning agents, reducing maintenance and extending the drive’s service life in harsh environments.
The drive features UL-listed safety ratings and a rugged IP66/NEMA 4X enclosure for environmental protection. These certifications support safe operation in demanding industrial settings and help with regulatory alignment for installation in automated lines, while enabling robust performance in wet or dirty environments.
The ACS255 delivers a quick return on investment by reducing energy consumption through efficient V/Hz and sensorless vector control, lowering startup currents, and minimizing downtime with reliable operation in washdown environments. Its integrated keypad accelerates commissioning, Modbus-RTU enables centralized monitoring, and compatibility with multiple motor types simplifies retrofits, increasing overall line availability.