Simrad NAC-3 High Current Course Computer
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Simrad NAC-3 High Current Course Computer Product Description
Enhance your boating experience with the robust performance of the Simrad NAC-3 autopilot computer, engineered to deliver precise steering control for larger vessels. As the core intelligence of your autopilot setup, it seamlessly manages hydraulic pumps, mechanical drives, and solenoid valves, ensuring steady navigation even in challenging sea conditions. Ideal for powerboats and sailing yachts exceeding 10 meters, this high-current unit powers through demanding maneuvers while integrating effortlessly with your onboard electronics.
Why the NAC-3 Stands Out for Serious Boaters
Boat owners upgrading to autopilot systems for extended cruises or competitive sailing appreciate the NAC-3's ability to handle high loads without faltering. Its Continuum steering technology minimizes wear on steering gear by optimizing response times and reducing overcorrections, leading to smoother rides and longer equipment life. For outboard or sterndrive setups common on planing hulls, the innovative Virtual Rudder Feedback eliminates the hassle of mounting traditional sensors, saving time and reducing clutter in tight engine spaces.
Powerful Drive Capabilities
The NAC-3 excels with high-current outputs, supporting continuous operation at 30 amps and peaks up to 50 amps for short bursts. This makes it perfect for robust hydraulic rams like those in the RPU160 or RPU300 series, mechanical drives such as the DD15, or hydraulic linear units. A dedicated 3-amp clutch output ensures reliable engagement, while solenoid control handles on/off steering for bigger boats with confidence. Skippers report fewer hydraulic fluid temperature spikes during long passages, thanks to intelligent power management.
Key Features at a Glance
- High-Power Handling: Drives heavy-duty pumps and valves with 30A continuous/50A peak rating.
- Virtual Rudder Feedback (VRF): No physical sensor needed for many outboard and I/O boats.
- Flexible Feedback Support: Works with NMEA 2000 RF25 units or frequency-output RF300 sensors.
- Seamless Networking: NMEA 2000 for sensors, controllers, and multifunction displays; NMEA 0183 inputs/outputs.
- NFU Ready: Connections for non-follow-up levers and external mode switching.
- Alarm Integration: External output for buzzers or relays to alert on issues.
- IPX7 waterproofing for marine durability.
Effortless Connectivity for Modern Helm Stations
Integrate the NAC-3 into your network without headaches. It communicates via NMEA 2000 with compass sensors, feedback units, and Simrad displays, allowing centralized control from anywhere on deck. NMEA 0183 ensures compatibility with legacy gear. For sailors, B&G Reflex algorithms enhance wind-aware performance when paired with compatible instruments, making tacking and gybing more intuitive.
Technical Specifications Overview
| Specification | Details |
|---|---|
| Power Supply | 12/24V DC (+10/-30% tolerance) |
| Motor Control | 30A continuous, 50A peak (1 second) |
| Solenoid Control | 10mA to 10A load range |
| Clutch Output | Max 3A |
| NMEA 2000 Load Equivalence (LEN) | 1 |
| Rudder Feedback | Frequency (1.4-5kHz) or NMEA 2000 |
Installation Tips for Optimal Performance
Mount the compact NAC-3 in a dry, ventilated spot near your drive unit to minimize cable runs. Use the included NMEA 2000 T-connector and extension for quick network drops. Calibrate via connected displays for your hull type—planing boats benefit from VRF setup in minutes. Common pro tip: Secure heavy-gauge power cables directly to batteries with fuses to handle peak loads during autopilot dodges. Professional installers note it pairs best with Precision-9 or HS60 compass for rock-solid heading data.
What's Included in Your NAC-3 Kit
- Main NAC-3 autopilot computer unit.
- 0.61m (2ft) NMEA 2000 extension cable.
- NMEA 2000 T-connector for easy branching.
Frequently Asked Questions
What size boats is the Simrad NAC-3 designed for?
The NAC-3 is optimized for vessels over 10 meters (33 feet) in length, handling the demands of larger hulls with high-current drives.
Does the NAC-3 require a separate rudder feedback unit?
Not always—Virtual Rudder Feedback (VRF) works for outboard and sterndrive boats without one. It also supports RF25 (NMEA 2000) and RF300 (frequency) units.
What power output does the NAC-3 provide for drives?
It delivers 30 amps continuous and 50 amps peak for motors, plus solenoid control up to 10A and a 3A clutch output.
How does the NAC-3 connect to other boat electronics?
Via NMEA 2000 for sensors, displays, and controllers, and NMEA 0183 for inputs/outputs, ensuring broad compatibility.
Is the NAC-3 suitable for both powerboats and sailboats?
Yes, with Continuum technology for power vessels and optional B&G Reflex sailing algorithms for enhanced wind performance.
What environmental protection does the NAC-3 offer?
IPX7 waterproof rating, making it resilient against splashes and submersion in marine environments.
Can the NAC-3 handle solenoid valves for steering?
Absolutely, with dedicated on/off control rated for loads from 10mA to 10A, ideal for larger yachts.
Equip your vessel with the NAC-3 for autopilot reliability that matches the open water's unpredictability. Boaters trust it for everything from coastal hops to offshore adventures.
The NAC-3 Autopilot Computer is recommended for boats above 10 meters (35 feet) in length. It is rated to operate high-current drive pumps including the Simrad RPU160 and RPU300, mechanical drives such as the Simrad DD15, hydraulic linear drives such as the HLD2000 series, and solenoid valves. Simrad Virtual Rudder Feedback (VRF) technology eliminates the need to install a separate rudder feedback unit aboard outboard and sterndrive (inboard/outboard) boats with planning hulls. This reduces overall autopilot system cost and complexity, and is ideal where a feedback unit is impractical due to mechanical constraints. For vessels that do require a physical rudder feedback sensor, the NAC-3 supports SimNet or NMEA 2000® connected Simrad RF25 feedback units, and rudder feedback sensors with variable frequency output including the Simrad RF300. Industry-standard NMEA 2000® networking and NMEA 0183® input allow simple connectivity to heading sensors, rudder feedback units, autopilot controllers, and multifunction displays located anywhere on board.
Simrad 0013250001 Attributes
- Compatibility: Boats 10 Meter Or Greater In Length And Suitable High Current Pumps/ Mechanical Drive Units
- Voltage Rating: 12 To 24 Volt
Simrad 0013250001 Features & Benefits
- Reliable Autopilot Performance Based On Continuum Steering Technology
- Recommended For Boats Up To 10 Meter In Length
- Compatible With Low-Current Drive Pumps, Mechanical Drives, Hydraulic Linear Drives, And Solenoid Valves
- Virtual Rudder Feedback For Simplified Installation Aboard Outboard And Sterndrive Boats
- Supports Simrad RF25 And RF300 Rudder Feedback Units
- NMEA 2000 ® Connectivity To Heading Sensors, Rudder Feedbacks, Dedicated Autopilot Controllers, And Multifunction Displays
- NMEA 0183 ® Input
- Limited 2 Year Warranty
Simrad 0013250001 Installation Instructions
- SteadySteer_IG_988-12731-001_w.pdf
- NAC-2_NAC-3_CM_EN_988-11233-004_w.pdf
- NAC-3_IG_988-11145-003_w.pdf
Simrad 0013250001 Warranties
NAC-3 High Current Course Computer
The NAC-3 Autopilot Computer is the brains behind your Simrad autopilot system. It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other components including heading sensors and rudder feedback units. The NAC-3 was designed for boats 10M (33') or greater in length and is rated to operate high-current pumps, mechanical drive units, and solenoid valves (30 Amps continuous/50 Amps peak).
Features:
- Reliable autopilot performance based on Simrad Continuum steering technology
- Recommended for boats above 10M (33') in length
- High-current output of 30 Amps continuous, 50 Amps peak
- Clutch output (3 Amps maximum)
- Compatible with high-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 Simrad RF25 and RF300 rudder feedback units
- NMEA 2000® connectivity to heading sensors, rudder feedbacks, dedicated autopilot controllers, and multifunction displays
- NMEA 0183® input
Product description For ships longer than 10 meters (35 feet), it is recommended to use a large current output NAC-3 autopilot computer. Its rated working capacity includes mechanical drives such as Simrad RPU160 and RPU300, Simrad DD15, hydraulic linear drives such as the HLD2000 series, and other high-current drive pumps. Virtual steering gear feedback Simrad virtual steering gear feedback (VRF) technology eliminates the need to install separate steering gear feedback units on outboard and stern navigator (inboard/outboard) ships with a planing hull. This reduces the overall cost and complexity of the autopilot, and is ideal when the feedback unit cannot be used due to mechanical limitations. For ships that really need rudder feedback sensors, NAC-3 supports Simrad RF25 feedback units connected to SimNet or NMEA 2000 and rudder feedback sensors with variable frequency output, including Simrad RF300. The easy-to-install industry standard NMEA 2000 network and NMEA 0183 input interface can be easily connected to the heading sensor, rudder feedback unit, autopilot controller and multi-function display at any position on the ship. Product details are based on the reliable autopilot performance of Continuum Steering technology. It is recommended for vessels longer than 10 meters (35 feet). Compatible with high current drive pumps, mechanical drives, hydraulic linear drives and solenoid valves. Virtual rudder feedback simplifies the installation of outboard and stern rudder ships. Support Simrad RF25 and RF300 rudder feedback units. NMEA 2000 is connected with heading sensor, rudder feedback, dedicated autopilot controller and multi-function display. NMEA 0183 input.
Simrad NAC-3 High Current Course Computer Related Products
Simrad Surface Mount Kit f/HS75Simrad Pole Mount Kit f/HS75
Simrd HS75 Compass GNSS
Frequently Asked Questions (FAQ) About Simrad NAC-3 High Current Course Computer
Who is the Simrad?How to describe Simrad NAC-3 High Current Course Computer?
What is the type of the product?
What is the compatibility of this product?
Who is the Simrad?
How to describe Simrad NAC-3 High Current Course Computer?
- The NAC-3 autopilot computer is the brains behind your Simrad autopilot system.
- It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other systems such as an electronic compass, GPS receiver and radar.
- The NAC-3 autopilot computer is programmed with all the necessary steering algorithms to ensure accurate control of your vessel in any situation.
- The NAC-3 Autopilot Computer is the brains behind your Simrad autopilot system. It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other systems on your boat.
- The NAC-3 is designed for boats with up to 3 steering pumps, and can be used to control up to 2 mechanical drive units.
- The NAC-3 also features an external interface that allows you to connect any other Simrad autopilot system.
The Simrad NAC-3 High Current Autopilot Computer is a top of the line autopilot computer model that offers superior performance and reliability. It's designed for the most demanding of boaters who need their autopilot to be as reliable as it is powerful. The NAC-3 High Current Computer offers unparalleled performance with 12/24V input, 30A continuous output (50A peak), 3A Clutch output, and
What is the type of the product?
- The NAC-3 autopilot computer is the brains behind your Simrad autopilot system.
- It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other systems such as an electronic compass, GPS receiver and radar.
- The NAC-3 autopilot computer is programmed with all the necessary steering algorithms to ensure accurate control of your vessel in any situation.
- The NAC-3 Autopilot Computer is the brains behind your Simrad autopilot system. It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other systems on your boat.
- The NAC-3 is designed for boats with up to 3 steering pumps, and can be used to control up to 2 mechanical drive units.
- The NAC-3 also features an external interface that allows you to connect any other Simrad autopilot system.
- The best autopilot computer on the market.
- It's a breeze to install and set up, and it'll take your sailing experience to the next level.
- Comes with 12 months of warranty so you can rest assured that you're getting quality product.
- The Simrad NAC-3 autopilot computer is a high-performance autopilot solution for sailboats.
- With the B&G Reflex Sailing Algorithms, it is designed to be used with a variety of sailing rigs, including sloops, yachts, catamarans and multihulls.
- The NAC-3 has many features that make it easy to use and adaptable to your needs.
What is the compatibility of this product?
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Simrad NAC-3 High Current Course Computer Technical Specifications
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Simrad |
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Simrad NAC-3 High Current Course Computer User Reviews
Simrad NAC-3 High Current Course Computer Shipping & Return
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