3 Terminal Mag Switch

The LONGACRE 3 Terminal Mag Switch is a heavy-duty electrical toggle switch engineered for marine, automotive, and industrial applications where reliable on/off control is mission-critical. Rated at 40 amps and 12V, this weatherproof switch handles the electrical demands of winches, bilge pumps, auxiliary lighting, and battery isolation systems. The three-terminal configuration allows users to wire multiple circuits or control accessory power with precision, making it an essential component for anyone building or upgrading tactical vehicle platforms, off-road rigs, or marine electrical systems.

This 3 Terminal Mag Switch features a sealed weatherproof cover that protects internal contacts from moisture, salt spray, and environmental contamination—critical for durability in harsh conditions. The toggle mechanism delivers positive tactile feedback, confirming positive engagement every time the switch is actuated. At 40 amps continuous capacity, the switch easily manages high-amperage loads without voltage drop or contact arcing, while the three-terminal design provides flexible wiring options for dual-circuit or multi-load configurations. Its compact footprint (4.2 x 0.7 x 5.55 inches) and minimal weight (0.1 lbs) allow installation in tight engine bays, electrical panels, or switch banks without bulk or complexity.

Professionals in marine, automotive, and tactical equipment sectors specify this switch for battery disconnect systems, auxiliary power distribution, and emergency cutoff applications where reliability cannot be compromised. Installation is straightforward—the weatherproof cover threads over standard electrical connectors, and the three terminals accept crimp or solder terminals rated for 12V systems. Whether you are wiring a secondary battery bank, controlling deck lights on a tactical vessel, or managing power circuits in a build-out platform, the LONGACRE 3 Terminal Mag Switch delivers the durability and precision control that field operations demand.