The Maxwell Circuit Breaker Isolator 42VDC is a robust and waterproof fuse holder specifically designed for marine applications. This circuit breaker is suitable for 42 volts of direct current and provides optimal protection for electrical installations on board. With a clear reset and off button, the system is easy to operate. The durable design ensures a long lifespan, even under harsh conditions. Ideal for use in electrical circuits of boats where safety and reliability are paramount.