
Siemens 3RW4453-6BC36
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The Siemens SIRIUS 3RW4453-6BC36 is a high-performance soft starter designed for demanding industrial motor applications. Rated for operation at 400–690 V AC with control voltage of 115 V AC, this unit delivers reliable motor starting and stopping while reducing mechanical stress and inrush current.
At 575 V and 50 °C, the soft starter provides a rated current of 494 A, supporting motors up to 500 hp. In inside-delta configuration, it achieves up to 856 A and 950 hp, making it suitable for heavy-duty drives in industrial environments. The screw terminal connections ensure secure and robust installation in control panels.
This product belongs to the Siemens SIRIUS range, known for durability, operational safety, and long service life in electrical automation systems. Typical applications include pumps, compressors, conveyors, and fans where controlled motor acceleration is essential.
Please note that the 3RW4453-6BC36 is a phased-out product. The recommended successor is the SIRIUS 3RW5 series, with preferred replacement type 3RW5548-6HA16, offering enhanced performance and future availability.