3RW5246-6AC14, Soft Starter, 200 kW, 370 A, 200 to 480V AC

Siemens 3RW52 Soft Starter Series – Overview

Siemens 3RW52 soft starters are high-performance motor starting solutions designed for demanding industrial applications requiring precise and reliable control of three-phase asynchronous motors. The 3RW52 series focuses on reducing mechanical stress, limiting inrush current, and supporting higher motor power ratings with advanced protection functions compared to compact soft starters. With robust construction and enhanced motor protection capabilities, Siemens 3RW52 soft starters are well suited for heavy-duty applications such as large pumps, compressors, conveyors, mixers, and industrial process machinery where dependable motor starting and operational reliability are critical.

Product Description: 3RW5246-6AC14

The Siemens 3RW5246-6AC14 is a chassis soft starter from the 3RW52 family rated for a continuous operational current of 370 A and specified for motor ratings up to 200 kW at 400 V. Designed for 3-phase supply systems in the 200–480 V AC range, this model is engineered for heavy-duty industrial motor starting where controlled acceleration, reduced mechanical stress and limited inrush current are required. Typical applications include large centrifugal and positive-displacement pumps, compressors, long conveyors and other process equipment driven by motors up to the nameplate power rating. For procurement and engineering teams the key value is straightforward: this SKU provides a high-power motor soft starter option in the 3RW52 line that fits installations requiring up to 200 kW (400 V) capacity and a 370 A rated operational current while operating from 200–480 V mains.

Key Soft Starter Attributes