Siemens SIRIUS 3RW5075-6TB14 AC Semiconductor Motor Starter (Soft Starter)

The Siemens SIRIUS 3RW5075-6TB14 is a high-performance AC semiconductor motor starter from the 3RW50 series. Engineered for reliable motor starting, it provides smooth acceleration, advanced protection, and energy-efficient operation for industrial applications. Designed with hybrid switching technology, it ensures durability and compliance with global standards.

Manufacturer: Siemens
Type: AC Semiconductor Motor Starter (Soft Starter)
MNR: 3RW5075-6TB14
Series: 3RW
Product Brand Name: SIRIUS
Product Category: Hybrid Switching Devices
Product Type Designation: 3RW50
Issue: E02
Version: V1.0.2

Technical Information

• Power Rating: 370 A (AC-53a, 40°C), up to 200 kW at 400 V
• Voltage: 3-phase, 200“480 V AC, 50/60 Hz
• Control Voltage: 110 to 250 V AC
• Rated Impulse Voltage (Uimp): 4 kV
• Motor Applications: AC-53a duty, suitable for squirrel cage motors
• Auxiliary Contacts: 1 NO + 1 NC
• Short Circuit Rating: 18 kA (600 V, Class L fuse), 10 kA at 480 V
• Protection Features: Overload and short circuit protection, thermistor input, built-in bypass contacts
• Enclosure: Open type, fan cooled
• Standard Compliance: IEC 60947-4-2, IEC/EN 60947-8A, GB/T14048.6
• Certifications: CE, UL Listed, CSA, UKCA, EAC
• Protection Class: IP00; IP20 with cover
• Ambient Temperature (Operation): -25 to +60 °C