What it is and where it fits
The Siemens 3RV2011-0BA15-ZW97 is a SIRIUS motor protection circuit breaker designed to protect motors against overload and short-circuit faults. It snaps onto a 35 mm DIN rail per DIN EN 60715 and takes screw-type terminals for the main circuit — standard panel-builder kit. Trip Class 10 means it disconnects within 10 seconds at 7.2× the thermal setting, fast enough to protect standard induction motors during a locked-rotor event. That's the spec that decides whether the winding survives a jammed conveyor or pump. Phase failure detection is built in — if one leg drops, the breaker trips. Out here in the grease, that's the difference between a single-phased motor cooking overnight and a line that starts back up after a blown fuse.
Breaking capacity and coordination
Rated breaking capacity hits 100 kA at 240 V, 400 V, 500 V, and 690 V AC — that's a full-range fault-clearing capability that holds up across common industrial voltages. At 480 V and 600 V the rating drops to 0.2 A, so coordination studies need to account for those specific taps. Rated insulation voltage spans 20 to 690 V. Operating temperature range is -20 to +60 °C with temperature compensation.
Panel fit and wiring
Dimensions are 45 mm wide, 97 mm deep, 97 mm tall — a compact footprint that leaves room for contactors and auxiliaries on the same DIN rail. Mounting position is any orientation, which simplifies layout in tight enclosures. Terminals accept 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) solid or stranded copper. The M3 screw terminals on the main contacts are what you'll torque to the values on the label — no special tools beyond a standard screwdriver. Clearance spaces: 50 mm above and below, 30 mm to the side, 0 mm forwards and backwards. That zero-clearance front and rear means it can sit flush against a backplate or a busbar shield without derating.