Garmin OnDeck Relay Switch 12v

The Garmin OnDeck Relay Switch 12v is a marine-grade remote control module designed for vessel operators who demand hands-free automation of critical onboard systems. This relay switch integrates seamlessly with the Garmin OnDeck Hub ecosystem, enabling captains and crew to control electrical loads—such as lighting, pumps, trim tabs, and other 12-volt auxiliary equipment—from a single centralized interface. Built for saltwater and freshwater environments, the relay switch simplifies complex wiring while improving safety and operational efficiency on vessels of all sizes.

This relay switch operates on a 12-volt direct-current (Vdc) power supply and connects directly to the OnDeck Hub, where up to five individual switches can be networked for redundant or multi-zone control. The robust design handles typical marine electrical loads while protecting circuits through integrated switching logic that prevents voltage spikes and short-circuit conditions. Weighing just 1 pound, the compact form factor allows discrete installation in engine compartments, console spaces, or below-deck locations without consuming valuable real estate. The unit's marine-grade construction resists corrosion and vibration—critical factors in saltwater and high-performance boating environments.

Boaters upgrading to modern marine automation systems will find the Garmin OnDeck Relay Switch 12v an essential component for integrating legacy or aftermarket equipment into a networked control architecture. The switch is compatible with any vessel running the OnDeck Hub platform and supports 12-volt DC loads commonly found in recreational and commercial fishing boats, center consoles, and cruising yachts. Installation requires basic electrical knowledge or professional marine technician support to ensure proper circuit sizing and breaker coordination. Verify that your OnDeck Hub input power operates between 10 and 28 volts DC before deployment to ensure reliable operation.