BLUE SEA Circuit Breaker ATO/ATC 5A 2pk The BLUE SEA Circuit Breaker ATO/ATC 5A 2pk is a dual-pack circuit breaker designed for ATO/ATC applications, featuring a current rating of 5 amps. It is installed in marine and automotive electrical systems for overcurrent protection, ensuring operational safety. Compatibility & Applications Fits standard ATO/ATC fuse holders for straightforward installation. Replaces blown fuses in marine and automotive applications. Mounts in 12V DC electrical systems for circuit protection. Pairs with ATO/ATC fuse panels for comprehensive electrical management. Utilized in vessels up to 30 ft for reliable overcurrent protection. Wires to battery systems for direct power management. The unit provides essential protection against electrical overloads, ensuring safety in marine environments. It serves as a direct replacement for standard fuses, enhancing circuit reliability in compact installations. For instance, it can be installed in the fuse panel of a 24-foot center console boat, offering a secure and efficient solution for overcurrent scenarios.