The Siemens 3RV1011-1DA10-ZW96 is a SIRIUS motor-protection circuit breaker designed for Class 10 trip response, meaning it disconnects within 10 seconds at 7.2× the thermal setting — fast enough to protect standard induction motors during a locked-rotor stall without nuisance tripping on normal starting inrush.
No ground-fault detection on this variant, so external ground-fault protection is needed if that's a requirement. Screw-type terminals on the main circuit accept 2× (0.5…1.5 mm²) or 2× (0.75…2.5 mm²) solid or stranded copper — common panel wire sizes, no special lugs required. Dimensions: 45 mm wide, 75 mm deep, 90 mm tall. Clearance above and below the unit is 20 mm each; side clearance is 9 mm. No space needed forward or backward, so it can sit flush against the backplane.