- BLUE SEA Switch Battery M DualCircPlus Blk The BLUE SEA Switch Battery M DualCircPlus Blk is a battery switch designed for dual-circuit operation with compact dimensions of 3 x 4 x 7 inches. This unit allows for efficient management of battery connections and is installed in marine applications, enhancing operational reliability. Compatibility & Applications Fits standard mounting locations in marine vessels. Replaces existing battery switches in dual-battery systems. Pairs with 12V and 24V DC battery systems. Mounts on boats up to 40 ft in length. Wires to 12V DC bus systems for easy integration. Includes necessary mounting hardware for installation. Supports installation in powerboats and sailboats. Functions effectively in both single and dual-engine configurations. The unit provides reliable battery management for dual-circuit systems, ensuring efficient operation in marine environments. It serves as a drop-in replacement for many existing battery switches, such as the Perko 8501 series, simplifying upgrades and enhancing system reliability. For instance, it can be installed on a 30 ft center console boat, facilitating seamless battery management during extended outings.


