3RW4075-6BB34 SIEMENS

The SIRIUS 3RW4075-6BB34 soft starter is a highly reliable and efficient solution for smoothly starting and stopping three-phase asynchronous motors. This soft starter is designed for size S12 and is capable of handling a current of 315 A. It is suitable for motors with a power rating of up to 250 hp when operating at 460 V and an ambient temperature of 50 °C. The device supports a wide voltage range of 200-460 V AC for the main circuit and requires a 115 V AC control supply voltage. The 3RW4075-6BB34 features screw terminals for easy and secure electrical connections. This soft starter reduces mechanical stress and voltage dips during motor starts, extending the lifespan of both the motor and the connected equipment. It offers adjustable starting parameters, allowing for optimized performance based on specific application requirements. The integrated bypass function minimizes energy losses during normal operation. Furthermore, the device incorporates protective functions to safeguard the motor against overload and phase failure, ensuring operational safety and reliability.