The Siemens SIRIUS 3RV2011-1EA15-0BA0 is a motor protection circuit breaker designed to protect three-phase motors against overload, short-circuit, and phase failure. Its Trip Class 10 means it trips within 10 seconds at 7.2× the thermal setting current, matching the startup profile of standard induction motors on conveyors, pumps, and fans.
Key ratings and what they mean for fit
The 100 kA breaking capacity at 400 V AC means this breaker can safely interrupt a fault current up to 100,000 A without welding contacts or cascading failure upstream — critical for panels with high available fault current from large transformers. At 690 V AC the breaking capacity drops to 4 kA, so verify your system voltage against the rating table. Rated motor power is 0.8 kW at 230 V. The auxiliary contacts handle 1 A at 24 V and 0.5 A at 230 V — enough to signal a PLC input or drop out a contactor coil. Phase failure detection is built in; no ground fault detection, so add a separate ground-fault relay if required.
Panel integration
Snaps onto 35 mm DIN rail per DIN EN 60715 or screws directly to a backplate. At 45 mm wide and 97 mm deep, it takes one standard DIN module slot. Mounting position is any, so it fits tight enclosures. The screw-type terminals on the main circuit accept 2×(0.5…1.5 mm²) solid or stranded.