![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_190933.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/62231XL.jpg?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_190936.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_190941.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_190946.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_190951.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_191055.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_191035.png?v=1760109260&width=1445)
![Suncoast Marine and Auto offers Simrad NAC-3 High Current Course Computer [000-13250-001] The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35 feet) in length. It is rated to operate high-current drive pumps.](http://www.suncoastmarineandauto.com/cdn/shop/files/Screenshot_2025-09-16_190957.png?v=1758130922&width=1445)
Product Description
NAC-3 High Current Course Computer (000-13250-001)
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).
- High-Current Output: The NAC-3 Autopilot Computer is recommended for boats above 10 metres (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.
- Virtual Rudder Feedback: Simrad Virtual Rudder Feedback (VRF) technology eliminates the need to install a separate rudder feedback unit aboard outboard and sterndrive (inboard/outboard) boats with planing 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.
- Easy Installation: 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.
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
-
- Warranty: 2 years
Specifications:
Waterproof rating | IPx7 |
Power | 12/24 V DC +10-30% |
NMEA 2000 LEN | 1 |
Interfaces | |
Reversible motor control of rudder | Max continious 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 |
Networking | |
NMEA0183 | 1 in 1 Out |
NMEA 2000 | 1 |
What's in the Box:
- NAC-3
- N2KEXT-2RD - 0.61 m (2-ft) NMEA
- N2K-T-RD T
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
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