Siemens 3RW4046-1BB14 SIRIUS 3RW40 High-Performance Soft Starter
The Siemens 3RW4046-1BB14 is a robust SIRIUS 3RW40 soft starter designed for heavy-duty industrial motor control. With its 106A rating, this device is engineered to provide a smooth, two-phase controlled startup for three-phase asynchronous motors. By mitigating current peaks and reducing mechanical impact during acceleration, the 3RW4046-1BB14 protects your mechanical components and stabilizes your electrical network. It is the ideal commercial choice for high-power applications such as large industrial fans, heavy conveyors, and centrifugal pumps.
Commercial Specifications & Features
This soft starter belongs to the «S3» size category, offering a compact yet powerful solution for large motor control.
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Part Number: 3RW4046-1BB14
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Rated Operational Current: 106 A (at 40 °C).
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Operational Voltage: 200…480 V AC.
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Control Supply Voltage: 110…230 V AC/DC.
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Motor Power Rating: 55 kW (at 400 V).
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Integrated Functions: Adjustable current limiting, electronic motor overload protection, and intrinsic device protection.
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Cooling & Efficiency: Integrated bypass contact system to reduce power loss and heat dissipation during steady-state operation.
Commercial Advice for Your Procurement
From a commercial management perspective, the 3RW4046-1BB14 provides a superior return on investment compared to traditional starting methods. At 55 kW, the mechanical stress during a direct-on-line start can be damaging; this soft starter serves as an insurance policy for your drivetrain.
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Maintenance Savings: By providing a linear and controlled torque increase, you significantly reduce the stretching of belts and the wear on gear teeth, extending the intervals between mechanical overhauls.
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Reduced Infrastructure Costs: The current-limiting function allows for smaller cable cross-sections and lower-rated upstream fuses, which can commercially optimize the cost of the entire electrical installation.
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Reliable Legacy Support: As part of the globally recognized SIRIUS family, this unit is highly standardized, ensuring that finding replacements or compatible accessories remains simple for years to come.
Professional Guidance for Your Orders
As specialized suppliers of Siemens SIRIUS power electronics, we offer the commercial reliability and global logistics your operation depends on.
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100% Genuine Siemens: We guarantee that every 3RW4046-1BB14 is an original, brand-new factory product.
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Expert Logistics: We understand that downtime at this power level is costly. We utilize express global shipping to ensure your soft starters arrive when you need them.
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Commercial Support: Our sales team is available to assist with volume discounts, lead-time coordination, and documentation for international projects.
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Consistent Inventory: We maintain stock of the 3RW40 S3 frame size to support both urgent maintenance and new industrial facility builds.
