The SIEMENS 3RW5235-6AC14 is a high-performance digital soft starter from the advanced SIRIUS 3RW52 series, specifically designed for demanding industrial applications. It supports smooth and controlled start-up of heavy-duty three-phase motors up to 75 kW (normal duty) and 132 kW (heavy duty) at 400 V. With an input voltage range of 200–480 V AC, this model ensures reduced mechanical stress, lower starting current, and longer motor life in large-scale operations.

Key Features

Motor Power Rating:
 • 75 kW (Normal Duty)
 • 132 kW (Heavy Duty) at 400 V AC

Rated Operational Current:
 • 248 A (Normal Duty)
 • 143 A (Heavy Duty)

Control Voltage: 110–250 V AC/DC
Mounting: Panel mounting with screw fixing
Integrated Bypass Contact System: Yes
Operating Temperature Range: –25°C to +60°C
Insulation Voltage: 600 V AC
Degree of Protection: IP20
Communication: Optional PROFINET/Modbus/PROFIBUS modules available
Degree of Pollution: 3 (according to IEC 60947-4-2)