ABB 3AXD50000428946 AC Drive - Ultra-Low Harmonic
Part Number: 3AXD50000428946
Quick Summary
ABB 3AXD50000428946 is an LV AC wall-mounted ultra-low harmonic drive designed for water and wastewater pumping systems. For operators, harmonic distortion, energy waste, and complex multi-pump control are persistent challenges that impact reliability and operating costs. This UL-rated drive ships with IP21 enclosure as standard, with UL-listed options and IP55/flange-mount variants available. The solution integrates Drive Composer compatibility and a Bluetooth panel, delivering streamlined commissioning, remote monitoring, and improved lifecycle economics for plant operators and maintenance teams.
Product Information
Extended Description
3AXD50000428946 ABB: The ACQ580-31 drives deliver innovative pump features for the water and wastewater industry, securing energy efficient flow of water and wastewater in your pumping solutions. The ultra-low harmonic variant provides ultimate harmonic performance, reaching even less than 3 % THDi, and exceeding the requirements set by low harmonic standards and recommendations. The drive includes an active supply unit and integrated low harmonic line filter, meaning there is no need for external filters, multi-pulse arrangements or special transformers.
Other features include output voltage boost and power factor correction. This robust and compact wall-mounted drive has built-in pump application functionality such as sensorless flow calculation, multipump control, level control, soft pipe fill, dry run protection, quick ramps and a solution for keeping the impeller of the pump clean. Usability is further enhanced with the intuitive Hand-Off-Auto control panel, the PC tool Drive composer and an optional Bluetooth=C2=AE control panel. The ultra-low harmonic wall-mounted variant comes in IP21 enclosure as standard. Also, IP55 and flange mounting units are available.
Ultra-low harmonic performance is achieved with THDi reaching well below 3%, delivering superior power quality and enabling reduced transformer sizing and lower utility penalties. Business impact: energy efficiency improvements and compliance with low-harmonic guidelines, leading to lower operating costs. Application: ideal for water and wastewater pumping where continuous duty and grid friendliness matter. The drive includes an integrated active supply unit and low harmonic line filter, eliminating the need for external filters or complex multi-pulse arrangements. Business impact: simplified installation, reduced cabinet footprint, and lower upfront capital expenditure. Application: retrofit or new builds in compact plant rooms. Built-in pump application features — sensorless flow calculation, multipump control, level control, soft pipe fill, and dry-run protection — enhance reliability and reduce wear. Business impact: smoother start/stop sequences, better process control, and extended pump life. Application: clean-water or wastewater transfer with varying load profiles. Quick ramps and fault-tolerant operation minimize downtime, while PF correction improves overall efficiency. Application: variable-speed pump stations with fluctuating demand. User-focused tools, including Hand-Off-Auto control, Drive Composer PC tool, and optional Bluetooth control panel, shorten commissioning time and simplify maintenance. Business impact: faster ROI, easier troubleshooting, and safer operations. Application: field deployment across facilities with mixed automation ecosystems. The compact wall-mount design with IP21 standard and IP55 options provides flexible installation in tight spaces, enabling safer, more reliable control in both new and retrofit projects.
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FAQs
What mounting options and electrical requirements should you plan for when integrating the ABB 3AXD50000428946 with existing pump systems? The drive is designed for LV AC applications and supports wall-mount installation with IP21 as standard, with IP55 and flange-mount variants available. Ensure frame clearance for service access, proper cable management, and compatibility with 480 V supplies and 27 A load. Using Drive Composer during commissioning helps validate wiring, parameter sets, and motor compatibility, reducing field rework and startup time.
The ultra-low harmonic variant delivers THDi well below 3%, significantly reducing supply-side distortion and improving power quality. This helps lower transformer and capacitor bank sizing, reduces electrical interference with nearby equipment, and minimizes penalties in regulated networks. In water and wastewater applications, this translates to more stable motor operation, improved pump efficiency, and coasting-down energy savings during variable-speed operation.
Yes. The drive includes sensorless flow calculation and multipump control as built-in pump-application features, enabling accurate flow estimation and coordinated performance across multiple pumps. This supports level control, soft pipe fill, and rapid ramping, delivering smoother transitions, reduced water hammer risk, and optimized energy use in modular pumping systems common in wastewater facilities.
The unit is designed with an IP21 standard enclosure as the baseline, with IP55 flange-mounted variants available for harsher environments. It aligns with UL considerations as indicated by the product description, and configurations can be selected to meet site safety and electrical codes. When selecting, verify enclosure rating, mounting method, and wiring access to ensure compliance with local regulations and installation standards.
Integrated dry run protection prevents pump damage by detecting non-primed or stalled conditions, reducing maintenance costs and extending motor life. PF correction improves overall energy efficiency, lowering utility bills and easing annual energy audits. Combined with built-in soft-start capabilities and quick ramps, operators see shorter downtime, lower replacement parts expenditure, and a faster payback in variable-demand pumping scenarios.