This is a brand new item. Never used. • Meets American Boat and Yacht Council (ABYC) standards • The industry standard circuit breaker for Blue Sea Systems' electrical panels • Combines switching and circuit protection into a single device • "Trip Free" design cannot be held "ON" during fault current condition https://www.bluesea.com/products/7238/A-Series_White_Toggle_Circuit_Breaker_-_Double_Pole_30A