- New
54-230PL is a Pollak Type I thermal circuit breaker rated at 30 amps and 12 volts DC. It features a single-pole design, automatic reset, stud terminals and a plastic housing with a 90-degree mounting bracket. This breaker is designed for compatible 12V electrical circuits and is used in applications such as RVs, trucks, buses and other equipment. Verify the required amperage, voltage and mounting configuration before replacing an existing circuit breaker.