Siemens 3RV1421-1BA10

The Siemens 3RV1421-1BA10 circuit breaker is specifically engineered for transformer protection, offering robust performance in electrical systems. Sized at S0, it can accommodate a short-circuit release of 42 amps, along with an A-release current rating ranging from 1.4 to 2 amps, ensuring safe and reliable operation. The device features a screw terminal connection that simplifies installation and promotes secure connections, while its standard switching capacity further enhances its versatility for various applications. This reliable circuit breaker is an essential component for safeguarding transformers from electrical faults, providing peace of mind in critical energy management scenarios.