SIRIUS soft starter S3 106 A-3RW3047-1BB04

Product Description

SIRIUS Soft Starter S3 106 A – 3RW3047-1BB04

The Siemens SIRIUS 3RW3047-1BB04 is a high-performance soft starter from the S3 series, designed for smooth starting and stopping of three-phase induction motors up to 55 kW (400 V). It reduces mechanical stress, limits inrush current, and prevents voltage dips during motor start-up, ensuring stable and efficient system operation.

This model belongs to the SIRIUS 3RW30 family, widely used in industrial automation, pumps, compressors, conveyors, HVAC systems, and heavy-duty machinery, where controlled motor acceleration is essential for equipment protection and energy efficiency. Its integrated bypass system ensures reduced heat loss and compact panel installation.

🔹 Key Features

• Siemens SIRIUS 3RW30 series soft starter
• Model: 3RW3047-1BB04
• Frame size: S3
• Rated current: 106 A
• Motor power: Up to 55 kW at 400 V
• Supply voltage: 200–480 V AC, 3-phase
• Control voltage: 24 V AC/DC
• Soft start and soft stop functionality
• Integrated bypass contact system for energy efficiency
• Compact and modular S3 design for panel mounting
• Screw terminal connection for secure wiring
• LED status indication for monitoring
• Reduces mechanical shock and electrical stress on motors
• Suitable for DIN rail / panel installation
• Complies with IEC 60947-4-2 standards