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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 30 Amps at supply voltage Drive Clutch Output Up to 4 Amp continuous at 12V on 12V systems Up to 4 Amp continuous at 24V on 24V systems Up to 4 Amp continuous at 12V on 24V systems Connections Rudder reference sensor Sleep switch Power Drive motor Drive clutch Ground Digital Input / Output (DIO) Nominal supply voltage 12 V or 24 V Operating voltage range 10.8V to 31.2V dc Power Consumption (standby) - Main Power Supply 300 mA (12/24V) Power Consumption (standby) - SeaTalkng Power Supply 20 mA (12V) SeaTalkng LEN (Load Equivalency Number) 1 SeaTalkng Power Out 3 Amp at 12V (fuse protected at 3 Amp) Data Connections SeaTalk ng Installation Environment Operating Temperature: -20°C to +55°C (-4°F to +131°F) Storage T