Motor protection circuit breaker for panel integration
The Siemens SIRIUS 3RV2011-1BA10-ZW97 is a motor protection circuit breaker designed for Class 10 trip response, meaning it will open within 10 seconds at 7.2× the thermal setting — fast enough to protect standard induction motors during a locked-rotor event without nuisance tripping on normal starts. Rated breaking capacity hits 100 kA at 400 V and 500 V AC, and 10 kA at 690 V, so it can interrupt high fault currents upstream of a motor starter without cascading damage to downstream contactors or overloads.
