Siemens SIRIUS 3RW44 Soft Starter (3RW4424-1BC34) - Phased Out
Siemens SIRIUS 3RW44 soft starter, 42A standard, 73A in-delta.
The Siemens SIRIUS soft starter, model 3RW4424-1BC34, is designed for smooth and controlled starting of three-phase asynchronous motors. It provides controlled ramp-up of motor speed, reducing mechanical stress on the motor and connected equipment. For a 460V system at 50°C, it handles 42A in standard configuration and 73A when connected inside the delta. The operating voltage range is 200-460V AC, with a 115V AC control voltage. This unit features screw terminals for reliable electrical connections.
This soft starter is ideal for applications where high starting currents and mechanical shock need to be minimized, such as in pump stations, fan systems, and conveyor belts. It offers a reliable method for motor control, extending the lifespan of motor components and reducing energy consumption during startup. Please note that this product is phased out, with the successor being the SIRIUS 3RW5 series, specifically the 3RW5524-1HA14.
Stanlo Automation, your veteran-owned surplus industrial parts supplier, has the Siemens 3RW4424-1BC34 SIRIUS soft starter. Secure this reliable component while supplies last.
| Standard Rating (460V) | 42 A, 25 hp |
| Inside-Delta Rating (460V) | 73 A, 50 hp |
| Voltage | 200-460 V AC |
| Control Voltage | 115 V AC |
| Terminals | Screw |
| Status | Phased-out |