3RW3028-2BB14 SIEMENS

The SIRIUS 3RW3028-2BB14 soft starter is a compact and efficient solution for smoothly starting three-phase asynchronous motors. This S0 size soft starter is designed for motors with an operating power of up to 18.5 kW at 400 V and an ambient temperature of 40°C. It operates within a wide voltage range of 200-480 V AC, making it suitable for various power grids. The control supply voltage can be either 110-230 V AC or DC, providing flexibility in control circuit design. Equipped with spring-type terminals, the 3RW3028-2BB14 ensures quick, secure, and vibration-resistant connections, reducing installation time and maintenance efforts. This soft starter offers overload protection, preventing motor damage from excessive current draw. By reducing the starting current and torque, it minimizes mechanical stress on the motor and driven equipment, extending their lifespan. Furthermore, the soft starting capability prevents voltage dips in the power supply, ensuring stable operation of other connected devices. It is ideally suited for applications requiring smooth acceleration and deceleration, such as pumps, fans, and conveyors.