3RW5525-1HA14, Soft Starter, 30 kW, 63 A, 200 to 480V AC

Siemens 3RW55 Soft Starter Series – Overview

Siemens 3RW55 soft starters are heavy-duty motor starting solutions designed for high-power industrial applications requiring robust and reliable control of three-phase asynchronous motors. The 3RW55 series focuses on reducing mechanical stress, limiting inrush current, and supporting very high motor power ratings with advanced motor protection and monitoring capabilities. With a rugged design and suitability for demanding operating conditions, Siemens 3RW55 soft starters are well suited for large pumps, compressors, crushers, conveyors, mills, and other heavy industrial machinery where dependable motor starting and long-term reliability are critical.

Product Description: 3RW5525-1HA14

The Siemens 3RW5525-1HA14 is a SIRIUS 3RW55-series motor soft starter rated for 63 A continuous operation and specified for a rated motor power of 30 kW at 400 V. It accepts a three-phase supply in the 200–480 V AC range and uses a 110–250 V AC control/auxiliary voltage. Designed for three-phase, high-power motors, this unit is suitable for typical industrial motor sizes around 30 kW (at 400 V) and supports use in heavy applications such as medium-to-large pumps, compressors and conveyor drives where limiting inrush current and reducing mechanical stress are priorities. Verified features for this SKU include three-phase control with torque-oriented start regulation and built-in motor protection functions (including thermistor-based motor protection and condition monitoring capabilities available on the 3RW55 platform). The product is delivered with standard front touch-protection and an IP00 enclosure rating (IP20 when a front cover is fitted), and it supports removable HMI and optional communication modules (PROFINET / PROFIBUS / Modbus TCP) for integration into plant automation when required.

Key Soft Starter Attributes