Autopilot Control Unit (ACU) The rugged ACU (Actuator Control Unit) delivers reliable autopilot drive power and also provides power to the SeaTalkng bus. Choose the ACU that fits your steering system type.Drive Current OutputMaximum continuous 30 Amps at supply voltageDrive Clutch OutputUp to 4 Amp continuous at 12V on 12V systemsUp to 4 Amp continuous at 24V on 24V systemsUp to 4 Amp continuous at 12V on 24V systemsConnectionsIncludes the M81105 Rotary Rudder ReferenceSleep switchPowerDrive motorDrive clutchGroundDigital Input / Output (DIO)Nominal supply voltage12 V or 24 VOperating voltage range10.8V to 31.2V dcPower Consumption (standby) - Main Power Supply300 mA (12/24V)Power Consumption (standby) - SeaTalkng Power Supply20 mA (12V)SeaTalkng LEN (Load Equivalency Number)1SeaTalkng Power Out3 Amp at 12V (fuse protected at 3 Amp)Data ConnectionsSeaTalkngInstallation EnvironmentOperating Temperature: -20°C to +55°C (-4°F to +131°F)Storage Temperature: -30°C to +70°C (-22°F to +158°F)Relative Humidity: MAX 93%Waterproof ratingDrip resistantDimensions (W x H x D)285mm x 211.5mm x 64.5mm (11.2 in x 8.3 in x 2.5 in)Weight2.2kg (4.84lbs)ConformanceEurope: 2004/108/ECAustralia and New Zealand: C-Tick, Compliance Level 2