NAC-3 Core Pack
  • NAC-3 Core Pack

NAC-3 Core Pack

NAC-3 Autopilot Core Pack: Comprising of the high-current NAC-3 autopilot computer, Precision-9 compass and RF-25 rudder feedback unit.

Part Number: 000-13336-001

Tax included

The NAC-3 Autopilot Computer is the brains behind your autopilot system. NAC-3 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-3 was designed for boats 10 metres (33 feet) or greater in length and is rated to operate high-current hydraulic drives, mechanical drive units, and solenoid valves with a current rating of 30 Amps continuous (50 Amps peak).

Key Features

  • Core components for a Simrad Continuum autopilot system – just add a drive unit and controller
  • Ideal for boats above 10 metres (35 feet) in length
  • Includes the high-current NAC-3 autopilot computer
  • Compatible with high-current drive pumps, mechanical drives, hydraulic linear drives, and solenoid valves
  • Control with the Simrad AP44 Autopilot Controller, IS42 display and OP12 keypad, or a networked multifunction display
  • Includes the RF25N rudder feedback unit
  • Includes the Precision-9 solid-state compass for accurate heading data that’s automatically fine-tuned as you travel
  • Includes all required NMEA 2000® network connectors and cables
  • Easy setup with automatic tuning and compass calibration
  • NMEA 0183® input





Temperature, operation

0 to +55°C

Temperature, storage

-32 to +70°C





Weight in Kg

0.7kg, 1.6lbs

Dimension Max size,
mm (length x width x height)

211x196x65.5mm, 8.31"x7,72"x2.58"







Cable inlet

Grommet (Spare Incl)



Local supply

12/24 V DC +10-30%

NMEA 2000
Load Equivalent number (50mA)




Reversible motor control of rudder

Max continuous load 30A, peak 50A for 1s

On/off solenoid control of rudder

12/24V DC, common, load range 10mA to 10A, off current <1mA

Engage output for bypass/clutch

12/24V DC, min 10mA, max 3A

Rudder angle, frequency input

15V, 1.4 to 5kHz, resol. 20Hz/° OR NMEA2000

NFU port/stbd input
and mode indicator output

External open/close contact, common ret, contact current max 30mA

Mode input

External open/close or pulse contact for SYSTEM SELECT, common ret, close to activate, contact current max 30mA

External alarm output for buzzer/relay  

Max 100mA, voltage level as local supply



EC 61162-1 input (NMEA0183 In)

1 ch

IEC 61162-1 output (NMEA0183 Out)

1 ch

IEC 61162-1 speed

4.8 & 38.4 kbaud


Certified (pending)