Description
The SIRIUS 3RW40 Soft Starter — Part Number 3RW4047-2BB14 is designed for reliable soft starting and stopping of high-power three-phase motors. With a rated current of 106 A and support for motors up to 55 kW at 400 V, this unit is ideal for heavy-duty applications such as pumps, compressors, crushers, conveyors, and large fans.
Operating within a broad 200–480 V AC main supply range, the soft starter uses a 110–230 V AC/DC control voltage, enabling flexible integration into various industrial control systems. The spring-type terminals allow quick, secure wiring, reducing installation time and maintenance effort.
Housed in a compact yet robust Size S3 frame, the device is suitable for panel-mounted installations where dependable performance and space efficiency are required. The SIRIUS 3RW40 series helps reduce inrush current, minimize mechanical shock, and extend motor lifespan.
Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Series | SIRIUS 3RW40 |
| Part Number | 3RW4047-2BB14 |
| Product Type | Soft Starter |
| Frame Size | S3 |
| Rated Current | 106 A |
| Motor Power | 55 kW at 400 V |
| Main Supply Voltage | 200–480 V AC |
| Control Voltage | 110–230 V AC/DC |
| Terminal Type | Spring-Type |
| Installation | Panel Mount |
| Packaging Dimensions (L × W × H) | 181 × 85 × 220 mm |
| Net Weight | 1.851 kg |
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