ABB ACS550-U1 3AUA0000003368 - IP21/NEMA1
Part Number: 3AUA0000003368
Quick Summary
The ABB ACS550-U1 3AUA0000003368 drive provides precise motor control for pumps, fans, and conveyors. Engineers often struggle to balance performance, protection, and energy efficiency in a single drive solution. This unit delivers IP21-NEMA1 protected enclosure and supports a 48–63 Hz operating band, helping equipment handle varying supply conditions. With simple bottom or side conduit connections and straightforward commissioning, you gain faster installation, reduced downtime, and lower lifecycle costs. Its robust design suits HVAC, water treatment, and manufacturing applications, making it a reliable core for smart plant automation while aligning with procurement goals for predictable maintenance and total cost of ownership.
Product Information
Extended Description
3AUA0000003368 ABB: ACS550-U1-088A-2
Feature → Business Impact → Application: The ACS550-U1 integrates precise speed control with a 208-240V ±10% input range, enabling consistent process performance and energy savings across a wide load spectrum. This translates to measurable efficiency improvements in pumps and fans and reduces wear on mechanical systems, extending equipment life in conveyors and material handling lines. Application: Ideal for general-purpose drive duties in manufacturing, water/wastewater, and HVAC installations where stable torque and smooth start/stop cycles are required. Feature → Business Impact → Application: IP21-NEMA1 enclosure provides reliable protection in typical indoor environments, minimizing dust ingress and incidental moisture exposure. This reduces service calls and component failures on belts, ventilators, and drum motors. Application: Suitable for machine rooms, control panels, and warehouse environments with standard ambient conditions. Feature → Business Impact → Application: Dir Connect and bottom/side conduit options simplify panel layout and wiring, shortening installation time and enabling flexible mounting. Application: Quick deployment in retrofit projects or new lines with limited space, enabling faster ROI. Feature → Business Impact → Application: 30 HP rating with 88A current supports robust motor performance, enabling higher throughput and reduced motor stall risk in fans and pumps. Application: Critical for applications demanding reliable push-to-start performance and consistent speed control in moderate-to-high load conditions. Feature → Business Impact → Application: 48–63 Hz compatibility expands usable frequency range, improving starting torque and process response in variable-speed drives. Application: Especially beneficial for pump and fan control where supply variability is common. Note: Compatibility with 208-240V systems is a key enabler of scalable, standardized hardware across multiple plants, reducing spares variety and simplifying maintenance.
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FAQs
Yes. The drive is specified for 208-240V ±10% operation and supports up to 30 HP motors with an approximate running current of 88 A. It is designed for general-purpose industrial applications such as pumps, fans, and conveyors, providing smooth speed control and reliable protection in standard plant environments.
The unit delivers about 88 A continuous current for a 30 HP motor. Benefits include precise speed control, soft-start and stop, energy savings from optimized motor operation, and robust motor protection features that reduce wear on pumps and conveyors while maintaining consistent process performance.
Absolutely. With 48–63 Hz support and IP21-NEMA1 enclosure protection, the ACS550-U1 is well-suited for indoor plant environments common in manufacturing, HVAC, and material handling. Its compact wiring and conduit options ease installation in retrofit and new-build projects, enabling reliable operation with a variety of load profiles.
The drive features IP21 enclosure protection with a NEMA 1-rated housing, offering protection against solid objects and light moisture ingress in standard indoor settings. While the data does not specify CE or SIL certifications, the enclosure rating supports typical industrial compliance requirements in controlled environments.
Expect lower maintenance due to robust ABB design, reduced motor wear from smooth acceleration profiles, and energy savings from efficient speed control. ROI improves with centralized commissioning, fewer spare parts due to standardized 208-240V stock, and faster time-to-value in retrofit programs for pumps, fans, and conveyors.