Siemens SIRIUS 3RW4458-6BC44 Soft Starter (Phased Out)

The Siemens SIRIUS 3RW4458-6BC44 is a soft starter designed for smooth motor acceleration. At 400V and 40°C, it handles 970A in standard configuration and 1680A in inside-delta configuration, with a power rating of 560kW (standard) and 1000kW (inside-delta). It operates on 200-460V AC with a 230V AC control voltage and features screw terminals.

This soft starter is suitable for various industrial applications where controlled motor start-up is required to reduce mechanical stress and electrical load, such as in pump systems, fan drives, and conveyor belts. It's crucial for extending equipment lifespan and optimizing energy consumption.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this phased-out Siemens soft starter. We also provide information on its successor, the 3RW5556-6HA14, ensuring you have access to the parts you need, whether for existing systems or planned upgrades.