{"product_id":"blue-sea-80a-187-series-panel-mount-thermal-circuit-breaker","title":"Blue Sea 80A 187-Series Panel Mount Thermal Circuit Breaker","description":"\u003ch2\u003eHeavy-Duty 80A DC Circuit Protection and Switching for Marine and Off-Grid Systems\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eBlue Sea 187-Series 80A Panel Mount Thermal Circuit Breaker\u003c\/strong\u003e delivers reliable overcurrent protection and manual switching in a single, robust unit. Engineered for demanding \u003cstrong\u003e12V, 24V, and up to 48V DC electrical systems\u003c\/strong\u003e, this breaker is an essential component for safeguarding high-draw circuits in marine vessels, caravans, 4WDs, and off-grid solar installations. Unlike standard fuse holders that require spare parts after a fault, this resettable \u003cstrong\u003e80A thermal breaker\u003c\/strong\u003e allows you to quickly restore power once the underlying electrical issue is resolved, while also functioning as a convenient master disconnect switch for maintenance or storage.\u003c\/p\u003e\u003ch3\u003eEngineered for Harsh Marine and Automotive Environments\u003c\/h3\u003e\u003cp\u003eWhen working with high-amperage DC systems, inferior circuit protection can lead to high-resistance connections, voltage drop, and severe thermal hazards. The \u003cstrong\u003eBlue Sea Systems 187-Series\u003c\/strong\u003e mitigates these risks through marine-grade engineering and robust materials. Featuring an \u003cstrong\u003eignition-protected housing\u003c\/strong\u003e, it is safe for installation in enclosed compartments and engine rooms aboard petrol-powered boats where volatile fumes may accumulate. Its weatherproof construction seals out moisture, salt spray, and dust, preventing internal corrosion that commonly causes lower-grade breakers to fail prematurely in Australian coastal and outback conditions.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Switching and Protection:\u003c\/strong\u003e Combines an 80A thermal circuit breaker and a manual ON\/OFF switch into a single device, simplifying panel layouts and reducing wiring complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Mechanism:\u003c\/strong\u003e Designed for uncompromising safety, the internal mechanism cannot be manually held in the ON position while a fault current is present, preventing severe cable damage and electrical fires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Terminal Studs:\u003c\/strong\u003e Equipped with robust 5\/16 in (Approx. M8) terminal studs that support high-torque connections and provide ample clearance for heavy-gauge wire lugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherproof and Ignition Protected:\u003c\/strong\u003e Built to withstand harsh marine and off-grid environments, making it suitable for installation in damp locations and petrol engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Visibility Reset Lever:\u003c\/strong\u003e The large yellow actuator clearly indicates trip status at a glance and is ergonomically shaped for easy manual operation, even with gloved hands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Panel Integration:\u003c\/strong\u003e Features recessed mounting holes for a flush, professional finish on dashboards, switchboards, and custom power distribution panels, with support for vertical or horizontal orientation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVersatile Applications and Installation Considerations\u003c\/h3\u003e\u003cp\u003eRated for systems up to \u003cstrong\u003e48V DC maximum\u003c\/strong\u003e, this 80A panel mount breaker is ideal for protecting main DC feeder lines, auxiliary battery banks, windlasses, bow thrusters, and high-output charge controllers. The ample clearance around the 5\/16 in (Approx. M8) studs ensures that thick battery cables and heavy-duty lugs can be terminated securely without crowding or straining the housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant Application Note:\u003c\/strong\u003e Do not use this thermal circuit breaker as a frequent manual switch for loads where high inrush currents are expected (such as large inverters without pre-charge circuits), as repeated high-inrush switching can degrade the internal contacts over time. It is specifically designed for continuous circuit protection and occasional isolation switching.\u003c\/p\u003e\u003ch3\u003eUpgrade Your Electrical Safety Today\u003c\/h3\u003e\u003cp\u003eProtect your high-current DC investments with proven marine-grade hardware. Add the \u003cstrong\u003eBlue Sea 187-Series 80A Panel Mount Thermal Circuit Breaker\u003c\/strong\u003e to your setup for dependable, resettable circuit protection on the water or off the beaten track.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631574483005,"sku":"BS-7042B","price":167.82,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-80a-panel-mount-breaker-bs-7042b.png?v=1792904343","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-80a-187-series-panel-mount-thermal-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}