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Availability: In Stock
The Siemens SIRIUS 3RW4046-1TB04 Soft Starter from the 3RW40 series delivers exceptional reliability, safety, and efficiency for industrial motor control applications. Designed for 80 A rated current and 45 kW (at 400 V) motor power, it ensures smooth acceleration and deceleration of motors, reducing electrical and mechanical stress on the system.
This model stands out with integrated thermistor motor protection, which provides precise thermal monitoring to prevent overheating and ensure motor longevity. Combined with built-in overload protection and bypass contacts, the soft starter minimizes power loss and optimizes energy use throughout operation.
Its compact design, screw terminal connections, and 24 V AC/DC control voltage make it easy to install, configure, and integrate into control systems. Suitable for use in ambient temperatures up to 40°C, the device performs reliably in demanding industrial environments.
| Specification | Details |
|---|---|
| Range of Product | Siemens SIRIUS 3RW40 Series |
| Product or Component Type | Soft Starter |
| Device Short Name | 3RW4046-1TB04 |
| Applications | Smooth starting and stopping of three-phase induction motors; suitable for pumps, fans, conveyors, compressors, HVAC systems, and general industrial drives |
| Utilization Category | AC-53A |
| [Ue] Rated Operational Voltage | 200–480 V AC |
| [Ie] Rated Operational Current | 80 A |
| Rated Power | 45 kW (at 400 V AC) |
| Control Supply Voltage | 24 V AC/DC |
| Connection Type | Screw Terminals |
| Control Type | Two-phase control with integrated bypass |
| Motor Protection | Built-in overload protection + thermistor motor protection |
| Rated Ambient Temperature | Up to 40°C |
| Product Lifecycle | Active Product |
| Product Class | A – Standard product, stock item, returnable within guideline period |
| Packaging Dimensions (L x W x H) | 182 × 88 × 220 mm |
| Net Weight | 1.858 kg |