The Siemens 3RK1315-6KS41-1AA5 is a SIRIUS reversing motor starter in an IP65 enclosure, designed for direct-on-line reversing of three-phase motors up to 0.75 kW at 400 V or 1 hp at 575/600 V. It integrates the contactor, overload relay, and reversing interlock in one housing, so you mount and wire one assembly instead of three separate devices.
IP65 protection means the enclosure is dust-tight and hose-down resistant — suitable for washdown environments in food-and-bev or chemical processing lines. The 24 VDC control supply (20.4 to 28.8 V range) is standard for safety circuits and PLC outputs; the 85 ms ON-delay and 65 ms OFF-delay are built-in, so you don't need external timing relays for basic reversing sequences. Four digital inputs are available on the M12 plug for local start/stop and direction commands. The AS-Interface protocol connection means this starter communicates directly on an AS-i network without an extra gateway module — useful for distributed motor control where you want to run the power and signal cables in one trunk. No PROFIBUS or PROFINET onboard, so if your backbone is Ethernet, you'll need an AS-i gateway at the network head.
Mounts via screw fixing in any orientation — vertical, horizontal, or flat — so panel layout constraints aren't a blocker. Dimensions are 294 mm wide, 215 mm high, 159 mm deep; plan for swing clearance on the HAN Q4/2 power connector. Shock rated to 12g at 11 ms and vibration to 2g at 7 mm, which covers most conveyor and pump applications without additional damping.