The ABB ACS355-03E-05A6-4 is a compact 2.2 kW (3 HP) three-phase machinery drive featuring natural convection cooling (fanless design) for silent operation in noise-sensitive environments. With a rated output current of 5.6A and input range of 380–480V AC, it delivers sensorless vector control with output frequencies up to 500 Hz. The drive includes 6 programmable digital inputs, 2 analog inputs, 2 relay outputs, and built-in RS485 Modbus RTU communication. Optional fieldbus expansion supports Profinet, Modbus TCP, CANopen, and EtherNet/IP. The integrated STO (Safe Torque Off) safety function and IE2 efficiency rating make it suitable for food processing, logistics, textile, and woodworking applications. Compact dimensions (260 × 70 × 187 mm) and IP20 enclosure allow easy cabinet integration. Note: This model has been discontinued by ABB and is available as stock/second-hand.
Q: Why is this drive fanless?
A: The ACS355-03E-05A6-4 uses natural convection cooling, eliminating fan noise and reducing maintenance. This makes it ideal for noise-sensitive environments like food processing and clean rooms.
Q: Is this model still in production?
A: No, ABB has discontinued the ACS355 series. However, stock and refurbished units are widely available from distributors.
Q: What is the difference between ACS355 and ACS580?
A: ACS355 is a compact machinery drive optimized for machine building applications with sequence programming. ACS580 is a general-purpose wall-mounted drive with a wider power range, assistant control panel, and more built-in features.
Q: Does it support sensorless vector control?
A: Yes, the ACS355 supports both V/f scalar and sensorless vector control modes for improved low-speed torque performance.
