The Siemens SIRIUS 3RV6011-1KA10 is a motor protection circuit breaker in the compact S00 frame size, rated 12.5 A operational current at AC-3 duty (400 V). The Class 10 trip characteristic means it will disconnect before the motor windings exceed their thermal limit during a locked-rotor event — the standard for standard-start induction motors driving pumps, fans, and conveyors. Thermal overload release handles sustained overcurrent; magnetic short-circuit trip clears faults instantly.
Snap-on mounting onto 35 mm DIN rail per EN 60715, in any orientation. The 45 mm width and 96 mm depth fit standard distribution panels with room for side-by-side grouping — 30 mm clearance needed to the side, 50 mm above and below. Screw-type terminals accept 2x (0.75 to 2.5 mm²) solid/stranded or 2x 4 mm²; torque to 0.8–1.2 N·m.
Rated for 50/60 Hz, 690 V max (AC-3). Power loss 7 W typical. Surge voltage resistance 6 kV. Shock rated 25 g / 11 ms per IEC 60068-2-27. Operating temperature -20 to +60 °C. Installation altitude up to 2000 m. Relative humidity 10–95 %. RoHS compliance date 05/01/2012.