The Simrad NAC-3 Autopilot Core Pack is a complete autopilot solution designed for vessels 10 meters (33 feet) or greater in length. This comprehensive kit includes the high-current NAC-3 autopilot computer, Precision-9 compass, RF25N rudder feedback unit, and NMEA 2000 network starter kit—everything needed to install a professional-grade autopilot system.
NAC-3 Autopilot Computer:
The NAC-3 serves as the intelligent core of your autopilot system, featuring advanced control algorithms developed to helm vessels across a broad range of weather conditions and sea states. This robust computer interfaces seamlessly with heading sensors and rudder feedback units while providing the power needed to operate hydraulic or mechanical drive units. The NAC-3 is rated for high-current applications, delivering 30 Amps continuous operation with 50 Amp peak capacity for 1 second, making it suitable for demanding marine environments.
Precision-9 Compass:
The included Precision-9 Compass provides accurate heading data at 20 Hz, rate of turn at 20 Hz, and roll/pitch information at 10 Hz, all transmitted over the NMEA 2000 network for integration with your vessel's electronics.
RF25N Rudder Feedback Unit:
The RF25N provides critical rudder position feedback to the autopilot computer, ensuring precise steering control. Includes transmission link and 5-meter (16.5-foot) NMEA 2000 Micro-C cable for easy installation.
NMEA 2000 Starter Kit:
The included network starter kit contains everything needed to establish your NMEA 2000 backbone: network power cable, 4.5-meter (15-foot) cable, three T-connectors, and two network terminators.
Key Features:
- High-current output: 30A continuous, 50A peak for hydraulic and mechanical drives
- Designed for vessels 33 feet and larger
- IPX7 waterproof protection for harsh marine environments
- Operating temperature range: 0°C to +55°C
- Dual voltage operation: 12/24V DC with +10-30% tolerance
- NMEA 2000 certified connectivity
- IEC 61162-1 (NMEA 0183) input and output channels
- Multiple control modes including NFU (Non-Follow-Up) capability
- External alarm output for buzzer or relay integration
- Reversible motor control for precise rudder management
- Bulkhead mounting with durable plastic construction
Technical Specifications:
- Dimensions: 211 x 196 x 65.5 mm (8.31" x 7.72" x 2.58")
- Weight: 0.7 kg (1.6 lbs)
- Storage temperature: -32°C to +70°C
- NMEA 2000 Load Equivalent: 1 (50mA)
- Rudder angle frequency input: 15V, 1.4 to 5 kHz, 20 Hz resolution
- IEC 61162-1 speed: 4.8 and 38.4 kbaud
- Color: Black
