Siemens Circuit breaker for motor protection, size S2, 845ACircuit breaker size S2 for motor protection, CLASS 10 A release 54 65 A N release 845 A screw terminal Standard switching capacity Circuit breaker SIRIUS 3RV2 For motor protection for the reliable shutdown in the event of a short circuit and for protecting the loads and system against overload, and for safe isolation of the system from the network. Thanks to their low heat loss, these compact and climate proof circuit breakers are optimized for use