The 30 Amp Circuit Breaker 12V-48V with Manual Reset, model HB904, is designed for use in boats, trolling motors, and marine applications. It is specifically constructed to handle voltage ranges from 12V to 48V and has a 30A amperage capacity. This circuit breaker is equipped with a manual reset function, allowing for easy and convenient resetting when necessary. Ideal for car audio and video installations on boats or other marine vehicles, this circuit breaker provides protection against overcurrent situations and ensures the safety of the electrical system.