300A Waterproof Circuit Breaker 12V 48V Manual Reset for Boats Ships Yachts Marine Power System 5/16" 18 Stud Size Features： 1、Versatile Voltage Range: Suitable for systems ranging from 12V to 48V, this circuit breaker offers compatibility with a wide array of vehicles and vessels, including automobiles, RVs, yachts, and ships. 2、Manual Reset Functionality: Empowering users with control, the manual reset feature ensures that after a trip due to overload or short circuit, power can be restored intentionally, enhancing safety and preventing unwanted restarts. 3、Waterproof Protection: Making it resistant to water intrusion and capable of withstanding harsh marine environments, ensuring reliable performance in wet conditions. 4、Robust Stud Size Compatibility: Designed with stud size 5/16"-18, it accommodates standard wiring gauges, facilitating secure and straightforward installation in various electrical systems without the need for special adapters. 5、Enhanced Safety Standards: Providing over current and short-circuit protection, this breaker safeguards your power systems against electrical damage, protecting both your investment and ensuring the safety of passengers on board. Specification： Item:?Marine Circuit Breaker Color: Black Product Material:?Bakelite Rated Current: 12V-48V Product Size:?88mm/3.46inch*58mm/2.28inch*45mm/1.77inch Package Size: 10*7.3*5cm Package Weight: 237g Package List： 1*?Marine Circuit Breaker 2*?Terminal 3* Screw