Overview
The ABB ACS350-03U-02A4-4 is a variable frequency drive designed for controlling AC motors in industrial automation and general machinery applications. The ACS350 is a wall or cabinet mountable drive for controlling AC motors. With a rated output of 0.75kW (1 HP), this micro drive operates from 3-phase 380-480V mains input at 48-63 Hz, making it suitable for distributed control in manufacturing, material handling, and process automation environments.
Key Features
- Compact Form Factor: Frame size R1 with noise level 60 dBA and dimensions 2.76 in. width × 6.34 in. depth.
- Dual Input/Output: 4.1 A rated output current with 48-63 Hz frequency support.
- Built-in Protection: Inbuilt brake chopper as standard and selectable switching frequency of 4 to 16 kHz with 4 kHz steps.
- Flexible Control: Acceleration and deceleration time adjustable from 0.1 to 1800 seconds.
- IP20 Enclosure: Open ventilation type suitable for clean, controlled indoor environments.
- Standard Motor Output: 3-phase variable voltage and frequency output from 0 to supply voltage, 0 to 500 Hz.
Technical Specifications
Exact specifications derived from ABB official documentation:
Typical Applications
Typical applications include food & beverage, material handling, printing, rubber & plastics and woodworking applications. The ACS350-03U-02A4-4 is also suitable for:
- Conveyor systems and conveyor belt drives
- Pump and fan speed control
- Compressor motor control
- Industrial machinery requiring distributed variable speed control
- OEM machine-building applications requiring compact form factor
Compatibility & Replacements
Compatible With
- Standard 3-phase AC induction motors (0.75kW / 1 HP rated)
- Industrial power distribution systems (380-480V ±10% 3-phase mains)
- Custom control panel integration via parameterable I/O connections
- ABB brake chopper modules (external option)
- Wall or cabinet mounting in industrial control enclosures
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The ACS350-03U-02A4-4 replaces earlier revisions of the same model number. For alternative micro drive solutions in the same power range, consult ABB’s broader ACS350 lineup (ACS350-03U-02A4-2, ACS350-03U-03A5-2) or modern equivalents in the ACS355 series.
Works With
- ABB Drive Studio configuration software
- Standard industrial control protocols: analog 4-20mA, 0-10V signal inputs
- Parameterable digital and analog I/O terminals
- Remote keypad/control panel interface (standard macro configuration)
- CE, UL, cUL, and GOST-R marked for global industrial use
