Simrad NAC-2 Low Current Course Computer
The Simrad NAC-2 Low Current Course Computer processes steering commands for compatible low-current autopilot installations. Its course-control function helps coordinate heading adjustments with connected drives and feedback components, supporting efficient automated steering while reducing repeated manual input at the helm.
SIMRAD NAC-2 Low Current Course Computer Specifications
| Drive Type | Digital Autopilot Processor |
| Pump/Ram Capacity | Supports RPU80 / RPU160 Drives |
| Flow Rate / Speed | 8A Continuous / 16A Peak Output |
| Max Pressure | Standard Hydraulic System Support |
| Cylinder Compatibility | Up to 15 cu in (250cc) Volume |
| Operating Voltage | 12V / 24V DC System |
| Peak Current Draw | 16 Amps (Motor Drive Limit) |
| Average Power Draw | 140mA (Processor Standby) |
| Motor Type | High-Efficiency FET H-Bridge |
| Computer Compatibility | NAC-2 Low Current Core |
| Port Size / Thread | NMEA 2000 Micro-C Terminal |
| Drive Connection | Screw Terminal Wiring Blocks |
| Rotation/Stroke Direction | Adaptive Software Reversing |
| Mounting Type | Bulkhead / Dry Internal Mount |
| Housing Material | Ruggedized ABS Polymer Case |
| Waterproof Rating | IPX5 Splash Resistant |
| Operating Temperature | -25°C to +55°C Performance |
| Length (Overall) | 204 mm Chassis |
| Width/Diameter | 180 mm Mounting Width |
| Weight | 0.6 kg (1.3 lbs) |
| Included Accessories | Network T-Joiner, 2ft N2K Cable |
| Key Mechanical Feature | Virtual Rudder Feedback (VRF) Engine |
Common Question of Simrad NAC-2
What is the NAC-2 computer?
The Simrad NAC-2 Low Current Course Computer processes steering commands for compatible low-current autopilot installations. It requires a suitable drive, feedback, heading source, control head, network, and power supply. Confirm complete hydraulic autopilot system compatibility before installation.
What does low current mean?
Low current identifies the computer’s intended electrical load category, not a universal boat application. Confirm compatible drive capacity, wiring, battery, network components, feedback, heading source, software, and calibration requirements before operation.
Does it operate a windlass?
No. The NAC-2 manages autopilot steering and does not operate a gypsy, drum, chain, or anchor rope. It is not an electric anchor windlass. Verify separate controls for marine anchor retrieval.
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