The Siemens SIRIUS 3RV2011-1FA25-ZW96 is a motor protection circuit breaker in the S00 frame size, designed to protect three-phase induction motors against overload and short-circuit. It carries a CLASS 10 trip characteristic, meaning it will trip within 10 seconds at 7.2× the thermal overload setting — the standard for standard-duty motor starting where the acceleration time stays under 10 seconds. The adjustable overload release spans 3.5 to 5 A, and the instantaneous magnetic short-circuit release is fixed at 65 A.
Breaking capacity and selectivity
This breaker delivers 100 kA breaking capacity at 240 V, 400 V, and 500 V AC, dropping to 4 kA at 690 V AC. That 100 kA rating at 400 V means it can safely interrupt very high fault currents typical of industrial main distribution boards without needing an upstream current-limiting fuse — it's self-protecting for most panel configurations. The 6 kA rating at 690 V AC applies to the AC circuit specifically. For selectivity coordination, the fixed 65 A instantaneous trip means downstream devices with lower short-circuit withstand can be selectively coordinated if their let-through energy stays below the breaker's threshold.
Compliance and documentation
RoHS compliance date listed as 10/01/2009, indicating the part meets the EU RoHS directive for restricted substances. The product carries IEC 60947-2 and IEC 60947-4-1 design standards for circuit-breakers and motor-starters. Insulation voltage rated at 690 V with pollution degree 3, surge voltage resistance 6 kV. The reference code per IEC 81346-2 is Q (switching device).