This is an IBUKI marine whistle control unit, designed for controlling air horn systems onboard vessels. The unit integrates a main control board with digital logic circuits, multiple relays, resettable circuit breakers, and terminal blocks for power and signal connections. It uses Fuji Electric SRC3631-02(4a) magnetic contactors to handle high-power switching for the horn solenoid valves. Built for reliability in harsh marine environments, it ensures stable operation of the vessel's signaling system, complying with maritime safety regulations.
