SIEMENS 3RV2021-4AA20-0BA0 – Circuit breaker | JUAL SIEMENS 3RV2021-4AA20-0BA0 – Special type Circuit breaker size S0 for motor protection, CLASS 10 A-release 10…16 A N-release 208 A Spring-type terminal Standard switching capacity Ambient temperature -50 °C 500 switching cycles