The Siemens SIMATIC 3RK1301-0BB10-0AA3 is a direct motor starter designed for 24 V DC control voltage, with PROFINET and PROFIBUS DP onboard for fieldbus integration into a SIMATIC automation environment. It mounts pluggable onto a terminal module, so it drops into a pre-wired backplane — no point-to-point power wiring for the main circuit, just the energy bus.
Trip class and motor protection
Adjustable Trip Class 10 or 20 lets you match the thermal overload curve to the motor start profile: Class 10 for fast-starting pumps and fans, Class 20 for high-inertia loads like conveyors or crushers. The 2-byte input and 2-byte output process data map directly to the PROFINET/PROFIBUS cyclic I/O — no extra mapping block needed in the PLC.
Operates 0 to 60 °C ambient, stores and ships from -40 to +70 °C — fine for unheated warehouses and panel interiors near machinery. Mounts vertical or horizontal; vibration rated 2g, shock 5g / 11 ms — holds up on a machine frame or a swinging panel door. Pollution degree 3 at 400 V, degree 2 at 500 V per IEC 60664 — suitable for industrial environments with conductive dust or occasional condensation.