{"product_id":"blue-sea-25a-md-push-button-circuit-breaker","title":"Blue Sea 25A MD Push-Button Circuit Breaker","description":"\u003ch2\u003eHeavy-Duty Weatherproof and Ignition Protected 25A Circuit Protection\u003c\/h2\u003e\u003cp\u003eEngineered for demanding marine, automotive, and off-grid electrical systems, the \u003cstrong\u003eBlue Sea Systems 25A Medium Duty (MD) Push-Button Circuit Breaker\u003c\/strong\u003e delivers dependable overcurrent protection where space and environmental resistance are critical. Whether you are outfitting a commercial vessel, upgrading a recreational boat, or building a custom 4WD canopy power distribution system, this 25A breaker provides robust protection for main, branch, or 24-hour circuits.\u003c\/p\u003e\u003cp\u003eUnlike standard thermal switches that can degrade rapidly in damp or high-vibration environments, this unit is purpose-built with a weatherproof sealed housing. It prevents moisture ingress, salt spray corrosion, and dust contamination, ensuring consistent electrical continuity when exposed to harsh Australian elements.\u003c\/p\u003e\u003ch3\u003eAdvanced Safety with Trip-Free and Ignition Protected Design\u003c\/h3\u003e\u003cp\u003eElectrical safety in enclosed compartments is paramount, particularly around fuel sources. This Blue Sea circuit breaker is fully ignition protected, making it safe for installation aboard petrol-powered boats and near fuel tanks or battery compartments where explosive gases or vapours may accumulate. It prevents internal sparks from igniting surrounding fumes, significantly reducing fire hazards compared to unsealed alternatives.\u003c\/p\u003e\u003cp\u003eFurthermore, the unit incorporates a mechanical \u003cstrong\u003etrip-free design\u003c\/strong\u003e. In the event of a sustained overload or direct short circuit, the internal mechanism trips immediately to protect downstream wiring and appliances. Crucially, the trip-free mechanism ensures the breaker cannot be manually held in the \"ON\" position while a fault current condition persists, eliminating the risk of user override causing wire meltdowns or equipment damage. Once the fault is cleared, power is restored via a simple push-to-reset button operation.\u003c\/p\u003e\u003ch3\u003eEngineered for High-Density Panels and Easy Installation\u003c\/h3\u003e\u003cp\u003eSpace behind the helm or inside a distribution box is often limited. The compact footprint and integrated surface mounting flange of the MD series allow for high-density circuit protection configurations, enabling installers to group multiple breakers cleanly in tight enclosures.\u003c\/p\u003e\u003cp\u003eTo streamline installation in awkward or confined spaces, the terminal studs are equipped with \u003cstrong\u003ecaptive star lock washers\u003c\/strong\u003e. These specialised washers are permanently attached to the terminal hardware, preventing you from dropping small components into the bilge or behind panelling during wiring. Once tightened, the star lock profile bites into the ring terminal to meet strict anti-rotation requirements, ensuring connections do not vibrate loose over corrugated roads or rough seas.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherproof Sealed Construction:\u003c\/strong\u003e Protects internal contacts against moisture, salt spray, and dirt in exposed marine or automotive applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Protected Housing:\u003c\/strong\u003e Certified safe for installation in petrol engine compartments and enclosed battery boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Push-to-Reset Operation:\u003c\/strong\u003e Simple one-touch resetting that cannot be forced on during an active electrical fault.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaptive Star Lock Washers:\u003c\/strong\u003e Eliminates the frustration of dropped hardware during installation while providing superior anti-rotation and vibration resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact High-Density Profile:\u003c\/strong\u003e Ideal for tight electrical panels serving main, branch, or continuous 24-hour loads like bilge pumps and security systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Vessels:\u003c\/strong\u003e Main feeds, branch circuits, windlass control, and 24-hour essential circuits (such as automatic bilge pumps and vessel monitoring) on both petrol and diesel boats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaravans \u0026amp; Campers:\u003c\/strong\u003e Weather-resistant circuit protection for external distribution boxes, high-draw appliances, and battery management setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4WD \u0026amp; Commercial Vehicles:\u003c\/strong\u003e Reliable vibration-resistant protection for auxiliary canopies, winches, lighting rigs, and industrial equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUpgrade your electrical distribution system with professional-grade protection. Add the Blue Sea 25A MD Push-Button Circuit Breaker to your setup today to ensure safe, compliant, and durable power management in any environment.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631446589501,"sku":"BS-2140-25A","price":89.58,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-25a-push-button-circuit-breaker-bs-2140-25a.png?v=1792904581","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-25a-md-push-button-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}