About this item Protection Feature: This 100 amp circuit breaker is designed for DC 12V-48V systems, providing reliable protection for your motor or power source. It safeguards against damage caused by voltage or current overloads, ensuring safe operation Wide Applicability: Perfect for a range of applications, this 100 amp breaker is ideal for boats, marine RVs, yachts, batteries, trailers, buses, and car audio systems. It meets the power needs of most setups with ease Manual Reset Design: Featuring a unique manual reset function, this 100 amp main breaker allows you to quickly resume operation if any issues arise, minimizing downtime Premium Materials: Built with a waterproof design and durable materials, this 100 amp breaker includes a silicone-insulated cover to protect against splashes and dust, ensuring long-lasting performance Easy Installation: Easily mountable on panels or firewalls, each set includes necessary accessories for a straightforward installation, making it simple to integrate this 100a breaker into your setup