Siemens Soft Starter 3RW3038-1BB14

The Siemens 3RW3038-1BB14 is a SIRIUS S2 soft starter designed for the smooth starting of 3-phase induction motors, reducing inrush current and starting torque. 

Key Features:

• Integrated Bypass: The device features an integrated bypass contact system. Once the motor reaches full speed, the internal bypass contactor takes over the current flow, which significantly reduces power loss on the thyristors and minimizes heat generation.
• 2-Phase Control: The soft starting process is achieved by controlling two phases, making it effective for standard industrial applications.
• Screw Terminals: The electrical connections utilize screw terminals for secure and robust wiring.
• Compact Design: It is part of the SIRIUS modular system, offering space savings and reduced wiring complexity compared to conventional starting methods.

Technical Specification:

• Product Brand: Name SIRIUS.
• Device Type: Soft Starter.
• Operating Current (at 40°C): 72 A.
• Motor Power (at 400V): 37 kW.
• Operating Voltage (Ue): 200-480 V AC.
• Control Voltage (Us): 110-230 V AC/DC.

This product is suitable for various industrial applications where a gradual, smooth start of a 3-phase motor is required to prevent mechanical shock and electrical current surges that could damage equipment or disturb the power supply network.