Siemens SIRIUS 3RW4447-6BC45 Soft Starter - 432A (500V)
Siemens SIRIUS 3RW4447-6BC45 soft starter, 432A @ 500V.
The Siemens SIRIUS 3RW4447-6BC45 is a high-performance soft starter designed for smooth acceleration and deceleration of three-phase motors. It provides controlled starting by limiting inrush current and reducing mechanical stress on the motor and driven equipment. Standard ratings at 500V and 40°C are 432 A, suitable for a 315 kW motor, with inside-delta ratings of 748 A for a 500 kW motor.
This soft starter is engineered for use in a wide array of industrial applications, including heavy-duty machinery, pumps, compressors, and conveyor systems where soft starting is crucial to prevent system shock and extend equipment life. It operates on AC voltages from 400-600 V and requires a 230 V AC control voltage.
Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3RW4447-6BC45. Please note this is a phased-out product, with the 3RW5547-6HA16 being the preferred successor. Secure this reliable component from Stanlo to maintain your existing systems.
| Manufacturer | Siemens |
| Part Number | 3RW4447-6BC45 |
| Series | SIRIUS |
| Rated Current | 432 A (500V, 40°C) |
| Inside-delta Current | 748 A (500kW) |
| Voltage | 400-600 V AC |
| Control Voltage | 230 V AC |
| Terminals | Screw |
| Status | Phased-out |