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The Siemens 3RW4046-1BB14 belongs to the SIRIUS 3RW40 series of soft starters, offering reliable motor starting with reduced mechanical stress and electrical peaks. Designed for three-phase asynchronous motors up to 45 kW (at 400 V), this soft starter provides two-phase control with integrated bypass contacts, ensuring low heat dissipation and high efficiency during steady operation.
The device operates within a wide input range of 200–480 V AC and a control voltage range of 110–230 V AC/DC, making it suitable for diverse industrial environments. Featuring screw terminals for durable and secure connections, the 3RW4046-1BB14 offers a compact S3 frame size, built-in overload protection, and consistent performance up to 40 °C ambient temperature.
Ideal for use in applications such as pumps, fans, compressors, and conveyors, the SIRIUS 3RW40 soft starter ensures smooth acceleration and deceleration, reducing wear on mechanical components and extending equipment lifespan.
| Specification | Details |
|---|---|
| Range of Product | SIRIUS 3RW40 Soft Starters |
| Product or Component Type | Soft Starter |
| Device Short Name | 3RW4046-1BB14 |
| Applications | Smooth starting and stopping of three-phase asynchronous motors; suitable for pumps, fans, compressors, conveyors, and general industrial machinery |
| Utilization Category | AC-53a |
| [Ue] Rated Operational Voltage | 200–480 V AC |
| [Ie] Rated Operational Current | 80 A |
| Rated Motor Power (400 V) | 45 kW |
| Control Supply Voltage | 110–230 V AC/DC |
| Mounting Type | Screw fixing |
| Terminal Type | Screw terminals |
| Bypass Contact System | Integrated |
| Size / Frame | S3 |
| Overload Protection | Built-in |
| Ambient Temperature (Operation) | up to 40 °C |
| Dimensions (L × W × H) | 183 × 88 × 220 mm |
| Net Weight | 1.853 kg |
| Product Lifecycle | Active |
| Product Class | A: Standard stock item, returnable within guidelines |
| Sustainability | Compliant with Siemens environmental and lifecycle standards |