Siemens 3RK1304-5KS40-3AA3 Reversing Motor Starter

Siemens 3RK1304-5KS40-3AA3 is a SIMATIC ET 200pro reversing motor starter (High Feature) designed for field installation to drive and reverse three‑phase motors with integrated protection. It combines mechanical switching with electronic overload protection and a brake contact, enabling safe start, reversal, and stop sequences in automated lines. The unit is rated for 0.9 kW at 400 V AC (AC-3) with a control current range of 0.15 to 2.00 A, and it provides a 400 V AC brake contact to support controlled deceleration. As part of the ET 200pro motor starter family, it is intended for Siemens automation architectures and can be integrated into decentralized drive control within SIMATIC systems, suitable for conveyor sections, packaging equipment, and other material‑handling applications where motor reversal and protection are needed. The 3RK1304-5KS40-3AA3 variant is configured for 400 V three‑phase networks and aligns with the ET 200pro RSE HF product line for reliable, compact motor control in industrial environments.