Pollak 54-230PL RV 12V Auto Reset Circuit Breaker – 30 AmpThis is an automotive mini circuit breaker, designed for use with 12V electrical systems that are found in cars, RV’s and campervans. Circuit breakers provide overload protection and prevent current spikes from reaching and damaging sensitive electronic components.Additional InfoAmps30Voltage12V DCReset TypeAutomaticTerminal ConnectionStud