The 12V 50A Automatic Charge Selector (ACS) is a smart voltage sensing relay, 100% waterproof (IP67) and compact, that automatically manages the charging function between the starting and service battery banks. The product is highly safe against ignition of flammable atmospheric vapors (ISO 8846), making it safe for installation on boats with outboard gasoline engines.

This automatic load selector supports a maximum electrical load between 50 and 120 amperes and its voltage system is 12V. | ACS units come with a multicolor LED control and a remote operation switch contact. | Reduces amperage of operational current by up to 70% . | Our ACS is especially recommended for use with lithium batteries . | Includes a one-way blocking diode function: this prevents the voltage drop of the domestic (house/service) battery when starting the engine or bow thruster.