Siemens SIRIUS 3RW4455-2BC46 Soft Starter - 693A, 710kW
Siemens SIRIUS 3RW4455-2BC46 soft starter for controlled motor startup.
The Siemens 3RW4455-2BC46 is part of the SIRIUS soft starter family, designed for smooth and controlled starting of three-phase motors. It provides rated performance of 693 A and 710 kW at 690 V (40 °C standard operation). For inside-delta connection, it is rated up to 600 V. The unit operates within a voltage range of 400-690 V AC and includes 230 V AC control voltage with spring-type terminals.
This soft starter is crucial for applications requiring reduced mechanical stress on machinery and electrical systems during motor startup. It is ideal for pumps, fans, compressors, and conveyors where smooth acceleration is beneficial. However, this is a phased-out product, with the preferred successor being the SIRIUS 3RW5553-2HA16.
Stanlo Automation, a veteran-owned surplus distributor, provides access to this Siemens 3RW4455-2BC46. Even though it is phased out, we can help you source this part if it is critical for your existing system, or guide you towards its successor.
| Rated Current | 693 A (at 690V, 40°C) |
| Rated Power | 710 kW (at 690V, 40°C) |
| Operating Voltage | 400-690 V AC |
| Control Voltage | 230 V AC |
| Terminals | Spring-type |
| Status | Phased-out |