3RW4028-1BB14 SIEMENS

The SIRIUS 3RW4028-1BB14 soft starter is a size S0 device designed for motors up to 18.5 kW at 400 V and an operating temperature of 40°C. It operates within a voltage range of 200-480 V AC and features a control supply voltage of 110-230 V AC/DC, providing flexibility in various power environments. This soft starter is engineered to smoothly start three-phase asynchronous motors, reducing mechanical stress and current peaks during startup. By utilizing advanced control algorithms, it optimizes the motor's acceleration, ensuring a gradual and controlled increase in speed. The 3RW4028-1BB14 enhances the lifespan of both the motor and the connected machinery by minimizing wear and tear. It also contributes to energy efficiency by reducing the inrush current, leading to lower energy consumption. The device is equipped with screw terminals for secure and reliable electrical connections. Its compact design allows for easy integration into existing motor control systems, saving valuable space in control cabinets. This soft starter is an ideal solution for applications requiring smooth and controlled motor starting, such as pumps, fans, and compressors.