NAC-2 Autopilot Computer


The low-current NAC-2 autopilot computer is ideal for smaller vessels, designed to run small hydraulic drives and mechanical drives for vessels up to 10 metres (33 feet) in length. Also provides solenoid output.

In Stock - 2 Items

The NAC-2 Autopilot Computer is the brains behind your autopilot system. NAC-2 contains the control algorithms developed to helm a yacht across a broad range of weather conditions and sea-states, alongside the electronics needed to operate a hydraulic or mechanical drive unit, while also interfacing with other components including heading sensors and rudder feedback units. The NAC-2 was designed for boats up to 10 metres (33 feet) in length and is suitable for low-current hydraulic drives, mechanical drives, or solenoid valves with a current rating of 8 Amps continuous (12 Amps peak).


Key Features

  • Recommended for boats up to 10 metres (33 feet) in length
  • Plug & Play installation
  • Compatible with low-current drive pumps, mechanical drives, hydraulic linear drives, and solenoid valves


Virtual rudder feedback for simplified installation aboard outboard and sterndrive (inboard/outboard) boats

  • 12 or 24 V DC input 8A continuous output, 12A peak
  • Solenoid output capable
  • 3 A clutch output
  • Optional Auto/Standby Switch
  • Drive & Processing circuitry and components identical to commercial autopilots
  • Rudder feedback options: NMEA2000 Rudder Feedback (RF25), Resistive Rudder -Feedback. New SD10 Mechanical Drive plugs straight in to drive and RFU connectors


*Lowrance compatibility is limited to HDS LIVE only.



Operating temperature -25°C to +55°C (13°F to 131°F)
Protection Splashproof, IPx5
Weight 0.6 kg (1.3 lbs)
Overall Dimensions Width: 7.1 in \ 180 mm
Height: 2.2 in \ 57 mm


Power supply 9-31.2 V DC
Load 140 mA + drive unit load
Performance Drive: 8 A cont., 12 A for 1 s


Network 1xMicroC (NMEA2000)
Feedback Variable voltage/resistive 0-5V
Drive output To PUMP-1 or HELM-1
Power supply 9-31.2 V DC
Solenoid 12/24V DC, common, load range 10mA to 10A, off current <1mA
Clutch 12/24V DC, min 10mA, max 3A
In Stock 2 Items

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