SIEMENS 3RV2021-4EA20-0BA0 – Circuit breaker | JUAL SIEMENS 3RV2021-4EA20-0BA0 – Special type Circuit breaker size S0 for motor protection, Class 10 A-release 27…32 A N-release 400 A Spring type terminal Standard switching capacity Ambient temperature -50 °C 500 switching cycles