Siemens 3RK1304-5KS40-4AA0 Direct Motor Starter

Siemens 3RK1304-5KS40-4AA0 is an ET 200pro DSE ST Direct Starter (Standard) that provides direct-on-line start for three‑phase motors in field installations. It combines mechanical switching with electronic overload protection, offering AC-3 protection up to 0.9 kW at 400 V and a motor current range of 0.15 A to 2.00 A, with no brake contact. As part of the ET 200pro motor-starter family, this DOL starter is designed for compact, field-based control and is suitable for integration into TI (Totally Integrated Automation) environments for fully automated applications, such as conveyor or production-line systems. The unit delivers reliable short‑circuit and overload protection while occupying a small footprint within the ET 200pro lineup, and is documented as the ET 200pro DSE ST DIRECT STARTER STANDARD, mechanical switching with electronic overload protection. Order number 3RK1304-5KS40-4AA0.