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Garmin Reactor™ 40 Mechanical/Retrofit/Solenoid Corepack with GHC™ 20 (010-00705-49) is a below-deck autopilot system for sailboat and powerboat setups with mechanical, cable, linear, or solenoid drive systems. Powered by a 9-axis AHRS CCU, it delivers precise heading hold, wind hold, and tack/jibe functions while minimizing power draw and rudder activity. The corepack includes the ECU 12 and the 4-inch GHC™ 20 button display, fully integrating with Garmin chartplotters over NMEA 2000®. (Drive units and rudder feedback sensors sold separately).
| Feature / Parameter | Specification |
| Physical Dimensions (W x H x D) | 4.3″ x 4.4″ x 1.9″ (109 x 112 x 48 mm) |
| Display Size & Type | 4.0″ diagonal, QVGA color LCD display with glass-bonded lens |
| Display Resolution | 320 x 240 pixels |
| Weight | 8.7 oz (247 g) |
| Water Rating | IEC 60529 IPX7 (waterproof up to 1m depth for 30 min) |
| Display Brightness / View Angle | 1,200 cd/m² (nit) / 170° viewing angle |
| Supply Voltage | Powered via NMEA 2000® network (9V to 16V DC; operates up to 32V DC) |
| Power Consumption | Max 3 W |
| NMEA 2000 LEN | 7 (350 mA at 9 VDC) |
| Control Interface | Soft-key push buttons + ANT+® wireless for remote control |
| Feature / Parameter | Specification |
| Garmin Part Number (MPN) | 010-00705-49 |
| Physical Dimensions | 3 19/32″ diameter (91.4 mm) |
| Weight | 5.6 oz (159 g) |
| Sensor Type | Solid-state 9-axis AHRS (Attitude Heading Reference System) |
| Case Material | Fully gasketed, high-impact plastic |
| Water Rating | IEC 60529 IPX7 |
| Operating Temperature | -15°C to 55°C (5°F to 131°F) |
| NMEA 2000 Supply Voltage | 9V to 16V DC |
| NMEA 2000 LEN | 3 (150 mA) |
| CCU Cable Length | 9.5 ft (3 m) |
| Feature / Parameter | Specification |
| Physical Dimensions (W x H x D) | 6.6″ x 4.6″ x 2.1″ (168 x 117 x 53 mm) |
| Weight | 1.8 lbs (820 g) |
| Supply Voltage | 11.5V to 30V DC (12V/24V nominal systems) |
| Main Power Fuse / Breaker | 40 A |
| Max Continuous Output Current | 15 A |
| Max Peak Output Current | 40 A |
| Standby Power Draw | Less than 1 W |
| Operating Temperature | -15°C to 55°C (5°F to 131°F) |
| Water Rating | IEC 60529 IPX7 |
| Compatible Drive Types | Linear drives (Class A, Class B Compact, Class B), Solenoid valves, or mechanical direct/cable drives |
| Item / Parameter | Specification / Details |
| Buzzer Dimensions (L x Dia.) | 29/32″ x 1″ (23 x 25 mm) |
| Buzzer Cable Length | 10 ft (3.0 m) |
| NMEA 2000 Accessories Included | 1x Drop cable (2 m), 1x Power cable (2 m), 3x T-connectors, 1x Male & 1x Female terminators |
| Interconnect Cables | ECU-to-CCU interconnect cable & ECU power cable included |
| Accessory | Function / Capability |
| GRF™ 10 Rudder Feedback Sensor | Provides precise physical rudder angle positioning |
| Shadow Drive™ Kit | Enables manual helm override on hydraulic retrofit setups |
| Garmin Linear Drive Units | Class A (up to 28,500 lbs displacement), Class B Compact (up to 48,400 lbs), Class B (up to 79,000 lbs) |
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