? ??Versatile Protection??High amperage thermal circuit breaker with manual reset switch, ideal for DC auxiliary electrical systems in vehicles, boats, and RVs. ? ??Rugged Design??Engineered for harsh environments, providing protection against current overload and short circuits in automotive and marine applications. ? ??Enhanced Safety??Features a protective rubber cap to prevent short circuits and a manual trip switch for quick circuit disconnection in emergencies. ? ??Waterproof Construction??IP67 rated, suitable for use in engine compartments and bilge areas, ensuring reliable operation in wet conditions. ? ??Vibration Resistant??Connection studs equipped with integrated locking washers to prevent loosening due to vibration, ensuring consistent performance. ? ??Surface Mountable??Designed for easy installation in auxiliary and accessory circuits of trucks, buses, RVs, and marine systems. Specifications: ?Circuit rating: 30A-300A (optional) ?Rated voltage: 12-48V DC ?Break rating: 3000A@30V DC ?Operating temperature: -32?? to 82?? ?Storage temperature: -34????149?? ?Number of poles: 2 ?Weatherproof rating: IP67 ?Material: Thermoplastic ?Mounting hole size (stud): 6mm / 1/4 inch - 28 inches Package included: ?1 x Circuit Breaker