The SIEMENS 3RW5243-6AC14 is a heavy-duty digital soft starter from the advanced SIRIUS 3RW52 series, engineered for high-power industrial applications. It supports three-phase motor start-up up to 110 kW (Normal Duty) and 200 kW (Heavy Duty) at 400 V, while operating within a voltage range of 200–480 V AC. This model minimizes starting current and mechanical wear, ensuring reliable, long-term motor performance in demanding environments.

Key Features

Motor Power Rating:
 • 110 kW (Normal Duty)
 • 200 kW (Heavy Duty) at 400 V AC

Rated Operational Current:
 • 364 A (Normal Duty)
 • 210 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: Supports optional PROFINET, PROFIBUS, and Modbus modules
Degree of Pollution: 3 (as per IEC 60947-4-2)