Integrator note — SIRIUS direct starter 3RK1315-6KS41-0AA5
The Siemens 3RK1315-6KS41-0AA5 is a SIRIUS direct starter, rated 0.75 kW at 400 V and 0.7 hp at 460/480 V, with a Trip Class 10 thermal overload curve. It is designed for direct-on-line starting of three-phase motors in a compact, IP65-rated enclosure suited for on-machine or washdown-area deployment. The unit communicates via AS-Interface protocol, accepts a 24 V DC supply (20.4... 28.8 V operating range), and provides 4 digital inputs for local control signals.
The IP65 rating means the enclosure withstands hose-directed water and dust ingress, so this starter can mount directly on a conveyor frame or machine base without a separate cabinet. AS-Interface protocol integration reduces field wiring to a single two-conductor cable carrying both power and data, which simplifies commissioning on distributed I/O architectures. The 24 V DC supply range (20.4... 28.8 V) ensures compatibility with standard industrial power supplies; the maximum permissible voltage is 31.6 V, so a regulated 24 V bus is recommended. Four digital inputs allow connection of start/stop pushbuttons or sensor feedback directly at the starter, reducing the need for a separate I/O block.
The starter measures 294 mm wide, 215 mm high, and 159 mm deep, with screw fixing for panel or machine mounting. Mounting position is flexible — vertical, horizontal, or flat — but horizontal is recommended for optimal heat dissipation. The main current circuit connects via a HAN Q4/2 plug per ISO 23570; addressing is through an M12 plug. Vibration resistance is 7 mm / 2g, shock resistance 12g / 11 ms, suitable for industrial machinery with moderate vibration.