ABB ACS355-03E-04A1-4 ACS355 Variable Frequency Drive

Description

Engineered for rapid integration and precise motor control, the ACS355-03E-04A1-4 variable speed drive delivers high-performance speed and torque regulation for low-power industrial machinery. As part of the globally recognized ACS355 micro drive series, this compact three-phase controller is optimized for cabinet-mounting configurations where space efficiency and functional safety are critical system requirements.

The ACS355-03E-04A1-4 operates on a 380 to 480 V input range, supplying a rated output current of 4.1 A to drive induction and permanent magnet motors up to 1.5 kW (2 HP). Standard built-in features, including a Safe Torque Off (STO) functional safety loop and an integrated braking chopper, eliminate the need for redundant external components, simplifying installation architecture and reducing overall cabinet footprint.

Features

• Integrated Safe Torque Off (STO) certified to SIL 3 / PL e standards for reliable safety shutdown.
• Supports both scalar and vector control modes for flexible regulation of induction and permanent magnet synchronous motors.
• Compact IP20 enclosure optimized for side-by-side DIN rail or screw mounting inside electrical enclosures.
• Built-in braking chopper as standard for handling regenerative deceleration energy.
• User-programmable sequence control for executing independent, localized logic profiles without a separate PLC.
• Coated boards protect delicate internal circuitry against humidity, dust, and corrosive environments.

Applications

• Material Handling and Logistics (conveyor belts, sorting systems)
• Food and Beverage Processing (industrial mixers, packaging machinery)
• Textile Manufacturing and Spinning Machinery
• HVAC and Commercial Pump Systems
• Specialty Woodworking and Machine Tool Auxiliaries

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mount vertically inside a dust-free, clean cabinet environment matching the IP20 structural design parameters.
• Maintain a minimum clearance of 75 mm above and below the drive housing to ensure unobstructed thermal convection.
• Utilize shielded motor cabling and execute proper 360-degree high-frequency EMC grounding at the cable clamp plate.
• Ensure low-impedance grounding paths are established between the drive frame, mounting panel, and primary distribution earth.

Compliance and Certifications

• CE, UL, cUL, TÜV Nord (STO safety certification), RoHS