3RW3027-1BB14, Soft Starter, 15 kW, 32 A, 200 to 480V AC

Siemens 3RW30 Soft Starter Series – Overview

Siemens 3RW30 soft starters are compact and cost-effective motor starting solutions designed for basic soft starting of three-phase asynchronous motors in standard industrial applications. The 3RW30 series focuses on reducing mechanical stress and limiting inrush current during motor start-up, providing a simple and reliable alternative to direct-on-line starting. With a straightforward design and easy commissioning, Siemens 3RW30 soft starters are well suited for pumps, fans, compressors, conveyors, and other simple motor-driven machines where basic motor starting control is sufficient.

Product Description: 3RW3027-1BB14

The Siemens 3RW3027-1BB14 is a Sirius 3RW30 soft starter rated for 32 A continuous output and specified for motors up to 15 kW at 400 V. It is designed for supply voltages from 200 to 480 V AC and uses a 110–230 V AC/DC control supply, making it compatible with common industrial control systems. This compact S0-frame starter provides stepless (voltage‑ramp) soft start and smooth ramp‑down functionality with adjustable start voltage and ramp time, reducing inrush current and mechanical stress on pumps, fans, compressors and light conveyor drives. The unit includes an integrated bypass contactor to eliminate semiconductor conduction losses once the motor is up to speed, and it is delivered with screw terminals and an IP20 enclosure for panel mounting. Typical users are maintenance and procurement teams specifying a small, space‑saving motor soft starter for straightforward applications where reliable, low‑complexity industrial motor starting is required.

Key Soft Starter Attributes