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SIRIUS Soft Starter 3RW3018-2BB04 – Reliable Motor Starting Solution

Author : Sarah Thomas | Published On : 07 Mar 2026

The 3RW3018-2BB04 SIRIUS Soft Starter is a compact and efficient motor control device designed to ensure smooth and controlled motor start-ups. With a power rating of 7.5 kW and a 24 V control voltage, it helps reduce mechanical stress on motors and connected equipment during start and stop operations.

Key Features

  • Soft motor start and stop to minimize mechanical wear

  • 7.5 kW motor support, suitable for small to medium industrial applications

  • 24 V control voltage for reliable control integration

  • Compact design, ideal for panel installations

  • Enhanced motor protection, reducing electrical and mechanical stress

Applications

The SIRIUS 3RW3018-2BB04 is commonly used in:

  • Pumps

  • Fans

  • Conveyors

  • Compressors

  • Small industrial machines

Why Choose a Soft Starter?

Unlike direct-on-line motor starting, a soft starter gradually increases the voltage supplied to the motor. This results in lower inrush current, reduced torque shock, and longer equipment lifespan.

Final Thoughts

For industries looking to improve motor reliability and reduce maintenance costs, the SIRIUS 3RW3018-2BB04 soft starter offers a dependable and efficient solution. Its compact form factor and robust performance make it a practical choice for modern motor control systems.