Motor-protection circuit breaker, S00, 2.2–3.2 A, CLASS 10
The Siemens SIRIUS 3RV1011-1DA15-ZI45 is a motor-protection circuit breaker in size S00, designed to protect motors against overload and short circuit in a single device. Its adjustable overload release is set from 2.2 to 3.2 A, and the CLASS 10 trip class means it will trip within 10 seconds at 7.2× the current setting — fast enough to protect standard induction motors during a stalled-rotor condition without nuisance tripping on a normal start. The part mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715 in any orientation, so it integrates into a standard panel enclosure with no special bracket. The screw-type terminals on top and bottom accept solid or stranded copper — typical for a panel-builder wiring a motor branch circuit.