The Siemens SIRIUS 3RK1315-6KS71-0AA0 is a direct motor starter in an IP65-rated enclosure, built for local motor control in washdown or dusty environments without needing a separate panel. It's a single-box solution — the starter, overload protection, and I/O all live in the same footprint, so you avoid running control wiring back to a central cabinet.
Rated 0.75 kW at 400 V, this starter handles small induction motors — think conveyors, pumps, or fans up to that power. That makes it suitable for placement right at the machine on a food line or in a wet area, rather than forcing you to mount it in a remote panel. The screw-fixing method and multiple mounting positions (vertical, horizontal, flat) give flexibility for tight spots. It includes 4 digital inputs and 1 digital output, which lets you wire start/stop pushbuttons and feedback directly into the starter without a separate I/O block. The M12 plug for device addressing means commissioning is straightforward with a standard connector.
Integration notes
Mounting is screw-fix to a backplate or machine frame — no DIN rail required. The dimensions (294 mm wide, 215 mm high, 159 mm deep) are compact enough to place near the motor, but verify the panel door clearance if you're inside an enclosure. The 24 V DC supply must stay within 20.4 to 28.8 V; the maximum is 31.6 V, so a stabilized power supply is recommended. AS-Interface handles the fieldbus layer, so no PROFINET or PROFIBUS DP on this unit — plan your network architecture accordingly.
