Siemens 3RW4457-2BC45 SIRIUS Soft Starter - 630kW

The Siemens 3RW4457-2BC45 is a SIRIUS soft starter designed for smooth motor acceleration. At 500V and 40°C, it handles standard operation with 880A and 630kW, and within-delta operation with 1524A and 1000kW. It operates on 400-600V AC and features 230V AC spring-type terminals.

This soft starter is engineered for applications requiring controlled motor starts to reduce mechanical stress and electrical inrush current. Industries such as mining, water treatment, and heavy machinery manufacturing benefit from its ability to protect motors and equipment during startup.

Stanlo Automation, your trusted veteran-owned surplus distributor, offers the Siemens 3RW4457-2BC45. While this is a phased-out product, we can help you find this part or its suitable replacement, ensuring your systems remain operational.