B&G

B&G, Simrad NAC-2 Autopilot Computer

£949.99
Tax included. Shipping calculated at checkout.
000-13249-001
The B&G and Simrad NAC-2 Autopilot Computer is the processing core of an autopilot system for boats up to around 10 metres (35 feet). It runs Simrad's proven steering algorithms and drives reversible motors, hydraulic pumps or solenoid valves, with NMEA 2000 and NMEA 0183 connectivity. Pair it with a compass, rudder feedback and a controller to build a complete pilot.

Collection or delivery in 1-2 weeks

Pickup available at Mercury Yacht Harbour

Usually ready in 2-4 days

Navico Extended Warranty

Manufacturer-backed extended cover provided by Navico — add up to 3 extra years.

Extended cover is added to your order and confirmed with your warranty documentation.

Description

Simrad NAC-2 Autopilot Computer Only

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.

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).

PRODUCT DETAILS

  • Reliable autopilot performance based on Simrad Continuum steering technology
  • Recommended for boats up to 10 metres (35 feet) in length
  • Output of 8 amps continuous, 16 amps peak
  • Clutch output (3 amps maximum)
  • 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
  • Supports B&G, Simrad RF25 rudder feedback units
  • Plug-and-play connectors for easy installation
  • NMEA 2000 connectivity to heading sensors, rudder feedbacks, dedicated autopilot controllers, and multifunction displays
  • 1 x NAC-2 Autopilot Computer - IPX5
  • 1 x NAC-2 Power cable - 2 m
  • 1 x NAC-2 Drive cable - 2 m
  • 1 x NAC-2 Feedback cable - 2 m
  • 1 x NMEA 2000 Network cable - 0.6 m
  • 1 x Micro-C T-Joiner
  • 4 x Fixing screws
  • Warranty card & literature pack

No exploded diagram available for this product.

No compatible transducers listed for this product.

Approvals

ComplianceEMC Directive 2014/30/EU

Electrical

Supply Voltage9 - 31.2 V DC
Power Consumption (Max)500 W
Recommended Fuse Rating20 A
Drive Output12/24 V DC, max 8 A continuous / 12 A peak
Engage / Clutch Output12/24 V DC, min 10 mA, max 3 A

Connectivity

NMEA 20001 Micro-C port, 1 LEN
Rudder FeedbackVariable voltage / resistive 0 - 5 V

Environment

Operating Temperature-25C to +55C (-13F to 131F)
Storage Temperature-30C to +70C (-22F to 158F)
Waterproof RatingIPx5
Humidity100%
Shock and VibrationAccording to EN60945

Physical

Weight0.6 kg (1.3 lbs)
Dimensions204 x 183 x 57 mm (8.1 x 7.2 x 2.2 in)
Compass Safe Distance500 mm (20 inches)

General

Recommended Boat LengthUp to 10 metres (33 feet)
Warranty2 years

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What size of boat is the NAC-2 suitable for?
The NAC-2 is designed for boats up to 10 metres (33 feet) in length and is suitable for low-current hydraulic drives, mechanical drive units and solenoid valves.
What is the drive output of the NAC-2?
The NAC-2 delivers up to 8 amps continuous and 12 amps peak drive output at 12/24 V DC, plus a clutch output rated to 3 amps maximum.
Do I need a separate rudder feedback unit?
Not always. The NAC-2 supports Virtual Rudder Feedback (VRF) for outboard and sterndrive boats, removing the need for a separate feedback unit. It also supports NMEA 2000 RF25 and resistive rudder feedback units where a physical feedback is preferred.
How does the NAC-2 connect to the rest of the system?
The NAC-2 uses a single Micro-C NMEA 2000 port (1 LEN) to connect to heading sensors, rudder feedback units, autopilot controllers and multifunction displays. Plug-and-play connectors simplify installation.
What supply voltage and fuse does the NAC-2 require?
The NAC-2 operates on 9 to 31.2 V DC with a recommended 20 A fuse, and supports both 12 V and 24 V drive systems.