
Siemens 3RW4075-2BB34
Need something we currently don't have available? Our sourcing team can help you find what you need
The Siemens SIRIUS 3RW4075-2BB34 soft starter is designed for reliable starting and stopping of high-power three-phase motors in industrial applications. With a rated current of 315 A and a motor capacity of up to 250 hp at 460 V, this soft starter ensures reduced inrush current, minimized mechanical stress, and extended service life of connected equipment.
Operating within a wide supply voltage range of 200–460 V AC and suitable for ambient temperatures up to 50 °C, this SIRIUS S12 soft starter delivers stable performance in demanding environments. Spring-type terminals provide secure and vibration-resistant connections, supporting efficient installation in control panels and motor control centers.
Please note that the 3RW4075-2BB34 is a phased-out product. For new projects or replacements, Siemens recommends the SIRIUS 3RW5 series, with the preferred successor being 3RW5075-2AB14, offering enhanced functionality and long-term availability. This makes the 3RW4075-2BB34 primarily suitable for maintenance, repair, or system extensions where compatibility is required.