Siemens SIRIUS 3RW4443-6BC34 Soft Starter - 180A, 125HP
Siemens SIRIUS 3RW4443-6BC34 soft starter for smooth motor acceleration.
The Siemens SIRIUS 3RW4443-6BC34 is a robust soft starter designed for smooth acceleration of three-phase AC motors. At 460V and 50°C, it has a standard rating of 180 Amps and can control motors up to 125 horsepower. For applications requiring higher currents, the inside-delta connection allows for ratings up to 312 Amps and 250 horsepower. It operates on a wide voltage range of 200-460 V AC and also accepts 115 V AC control voltage, featuring convenient screw terminals for connections.
This soft starter is crucial for applications where minimizing mechanical stress and electrical inrush current is important, such as conveyor systems, pumps, fans, and compressors. Its smooth start-up capability extends the lifespan of motor and connected machinery, reducing maintenance costs and energy consumption during startup.
Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RW4443-6BC34. Secure this reliable component to ensure efficient motor control and operational continuity for your industrial applications.
| Rated Current (Standard) | 180 A (at 460V, 50°C) |
| Rated Power (Standard) | 125 hp (at 460V) |
| Rated Current (Inside-Delta) | 312 A |
| Rated Power (Inside-Delta) | 250 hp |
| Control Voltage | 200-460 V AC, 115 V AC |
| Terminals | Screw Terminals |
| Protection Rating | IP20 (typical for this series) |
| Series | SIRIUS 3RW44 |