Autopilot Control Unit (ACU), The rugged ACU (Actuator Control Unit) delivers reliable autopilot drive power and also provides power to the SeaTalk ng bus. Choose the ACU that fits your steering system type,Drive Current Output, Maximum continuous 7 Amps at supply voltage, Drive Clutch Output, No clutch connection, Connections, Rudder reference sensor, Power, Drive motor, Ground , Nominal supply voltage, 12 V, Operating voltage range, 10.8V to 15.6V dc, Power Consumption (standby) – Main Power Supply, 300 mA (12V), Power Consumption (standby) – SeaTalk ng Power Supply