40A 12V DC circuit breaker with bolton mounting for marine and vehicle electrical systems Keeps boat and vehicle electrical systems protected: suitable for heavyduty and truck applications, offroad vehicle winches, yachts, ATV, RV, special vehicles and ships electrical control, DC circuit breaker Automatic reset with reliable protection: resets automatically after an overload, but will trip again if the fault is not corrected, helping maintain system operation without constant manual resets Thermal automatic reset feature: designed to prevent overheating and reduce the risk of blown circuits Durable bolton design: easy to install in DC circuits and compatible with standard mounting arrangements Clear performance attributes: 40A rating, 12V DC operation, dedicated to protecting DC electrical circuits in demanding environments Practical use scenarios: Marine use: protect main distribution or accessory circuits on boats and ships, ensuring continued operation after transient faults Offroad and heavyduty vehicles: safeguard power circuits for winches, lighting, and auxiliary systems in trucks, ATVs, and other offroad platforms Recreational and special vehicles: secure electrical controls in RVs and specialty vehicles, preventing damage from overloads while allowing automatic recovery after faults Consistent with original specifications and functions: provides DC circuit protection, automatic reset behavior, 40A at 12V, bolton mounting, and suitability for boat, , and vehicle electrical control applications