Key Specifications
Power Rating: 5.5 kW (7.5 HP)
Input Voltage: 3-phase 380-480V AC (±10%), 50/60Hz
Output Current: 12.5 A
Overload Capacity: 150% for 3 seconds
Control Technology: Sensorless vector control
Switching Frequency: 2-16 kHz (adjustable)
Efficiency: >97.5%
Main Features
✔ Advanced Motor Control
Direct Torque Control (DTC) technology
Automatic Motor Adaptation (AMA)
Torque boost function (±3% accuracy)
Flying start capability
✔ Application Flexibility
5 pre-programmed application macros
Built-in PID controller
Customizable application programs
Pump and fan control curves
✔ Protection & Safety
Motor thermal protection (PTC/KTY supported)
Short circuit and ground fault protection
Safe Torque Off (STO) option (SIL3/PL e)
Overvoltage/undervoltage protection
✔ Connectivity Options
Standard RS485 (Modbus RTU)
Optional fieldbus adapters:
PROFIBUS DP
DeviceNet
CANopen
USB service port for configuration
Physical Characteristics
Dimensions: 150 × 200 × 165 mm (W×H×D)
Weight: 2.3 kg
Enclosure Rating: IP20 (open type)
Cooling Method: Forced air cooling
Ambient Temperature Range: -10°C to +50°C (14°F to 122°F)
The ABB ACS355-03E-12A5-4 is a high-performance industrial AC drive designed for demanding motor control applications. With a 5.5kW (7.5HP) power rating, this compact drive delivers precise speed and torque control while maintaining energy efficiency.