The Original New ABB ACS550-01-04A1-4 is a 1.5 kW (2 HP) general-purpose wall-mounted AC drive from the ACS550 series, designed for reliable motor control across a wide range of industrial applications. Rated at 4.1 A normal duty (3.3 A heavy duty) with a 380–480 V three-phase input, this drive delivers efficient speed and torque control for pumps, fans, conveyors, compressors, mixers, and other variable and constant torque applications. Featuring an IP21 enclosure, integrated EMC filter (Category C2), built-in Modbus RTU communication, and sensorless vector control, the ACS550-01-04A1-4 simplifies installation and reduces the need for external components. Its robust design with coated circuit boards makes it suitable for demanding industrial environments across multiple sectors, including HVAC, water treatment, food and beverage, and material handling. Core Engineering Highlights:1.5 kW (2 HP) normal duty power rating | 4.1 A normal duty / 3.3 A heavy duty output current | 380–480 V 3-phase input (±10%) | 0–500 Hz output frequency range | IP21 / UL Type 1 wall-mounted enclosure | Frame size R1 | Integrated EMC filter (Category C2) | Modbus RTU via RS-485 standard | Sensorless vector control and scalar (V/f) control | Overload capacity: 150% for 60 sec (heavy duty) / 110% for 60 sec (normal duty) | IE2 efficiency level | Wall-mounted design | Coated circuit boards for harsh environment protection Key Features: Original New ABB ACS550-01-04A1-4 drive (3AUA0000003386-D) 1.5 kW (2 HP) rated output power, 4.1 A normal duty output current 380–480 V AC 3-phase input, 50/60 Hz 0–500 Hz output frequency range IP21 / UL Type 1 enclosure for control cabinet or wall mounting Frame size R1 with compact dimensions: 125 x 369 x 212 mm (W x H x D) Integrated EMC filter (Category C2) for reduced electromagnetic emissions Built-in Modbus RTU communication via RS-485 Sensorless vector control and scalar (V/f) control for precise motor control Overload capacity: 150% for 60 seconds (heavy duty) Coated circuit boards for moisture and dust resistance Patented built-in DC swinging choke for harmonic reduction Built-in brake chopper for dynamic braking Wall-mounted design for simple installation Assistant control panel included for intuitive interface and diagnostics Energy optimization for reduced energy consumption in variable torque applications Supports PID control for process applications IE2 efficiency level Applications: Pumps and centrifugal pumps Fans and ventilation systems Conveyors and material handling systems Compressors and blowers Mixers and agitators HVAC systems and building automation Water and wastewater treatment Food and beverage production facilities General industrial automation and OEM machinery Technical Specifications: Attribute Specification Catalog Number ACS550-01-04A1-4 ABB Order Code 3AUA0000003386-D Product Type Low voltage AC standard drive Series ACS550 Frame Size R1 Power Rating (Normal Duty) 1.5 kW (2 HP) Power Rating (Heavy Duty) 1.1 kW (1.5 HP) Output Current (Normal Duty) 4.1 A Output Current (Heavy Duty) 3.3 A Input Voltage 3-phase 380–480 V AC (±10%) Input Frequency 47.5–63 Hz Output Frequency 0–500 Hz Enclosure IP21 (UL Type 1) Mounting Wall-mounted EMC Filter Integrated, Category C2 Control Methods Scalar (V/f), Sensorless Vector Overload Capacity (Normal Duty) 110% for 60 sec Overload Capacity (Heavy Duty) 150% for 60 sec Communication Modbus RTU via RS-485 Analog Inputs 2 Analog Outputs 2 Digital Inputs 6 Relay Outputs 3 Auxiliary Output Voltage 24 V DC ±10%, Max 250 mA Power Factor 0.98 Switching Frequency 4 kHz selectable Efficiency Level IE2 Dimensions (W × H × D) 125 x 369 x 212 mm Net Weight Approx. 6.2–6.5 kg Operating Temperature –15°C to +40°C Standards CE, UL, cUL, C-Tick, GOST R Certifications RoHS compliant Country of Origin Sweden System Compatibility: Compatible with a wide range of industrial communication protocols via optional fieldbus adapters Modbus RTU (built-in) for direct connection to PLCs and SCADA systems Compatible with ABB ACS550 series accessories including control panels (ACS-CP-C, ACS-CP-D, ACS-AP-I), mounting kits, and communication adapters Suitable for use with ABB motors and third-party motors FlashDrop tool support for quick, volume configuration of unpowered drives Remote monitoring through Ethernet adapter Related Products: ACS-CP-C – Basic control panel with numeric display ACS-CP-D – Basic control panel with multi-language support ACS-AP-I – Advanced control panel with graphical display ACS550-01-03A3-4 – 1.1 kW version (lower power) ACS550-01-06A9-4 – 3 kW version (higher power) OREL-01 – Relay output extension module OTAC-01 – Encoder interface option module Fieldbus adapters – PROFIBUS, PROFINET, EtherNet/IP, DeviceNet ACS550-01-04A1-4+B055 – Variant with IP54 enclosure PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. ABB is a trademark of ABB Group.
