BLUE SEA Circuit Breaker ATO/ATC 20A 2pk The BLUE SEA Circuit Breaker ATO/ATC 20A 2pk is a circuit protection device designed for 12V and 24V DC electrical systems, featuring a current rating of 20 A. It provides reliable overload and short-circuit protection for marine and automotive applications. Compatibility & Applications Fits standard ATO/ATC fuse panels in marine and automotive applications. Replaces existing 20A ATO/ATC circuit breakers without modification. Mounts in various locations within 12V and 24V DC systems. Pairs with BLUE SEA fuse blocks for integrated circuit protection. Wires to existing DC circuits for overload protection. Integrates with NMEA 2000 systems for enhanced electrical management. The unit ensures effective circuit protection in boats and vehicles, preventing damage from overloads. It serves as a direct replacement for standard ATO/ATC breakers, enhancing system reliability. For instance, it can be installed in a 24V DC yacht electrical system to safeguard navigation equipment, distinguishing itself with its panel-mount design for easy access.