3RW4028-2BB15 SIEMENS

The SIRIUS 3RW4028-2BB15 soft starter is a highly efficient and compact device designed for smooth starting and stopping of three-phase asynchronous motors. This soft starter is part of the SIRIUS line, known for its reliability and performance in motor control applications. With a size of S0, it is suitable for motors with a rated current of up to 38 A. It is designed for motors operating at 22 kW when connected to a 500 V power supply, and it maintains optimal performance in ambient temperatures up to 40°C. The device is compatible with a wide range of supply voltages, accepting 400-600 V AC. The control voltage range is equally versatile, accommodating both 110-230 V AC and DC. This soft starter utilizes spring-type terminals, ensuring secure and vibration-resistant connections, which simplifies installation and maintenance. It effectively reduces mechanical stress and voltage dips during motor starts, extending the lifespan of both the motor and the connected equipment. The 3RW4028-2BB15 provides a cost-effective and space-saving solution for motor starting applications.