{"product_id":"blue-sea-100a-285-series-panel-mount-thermal-circuit-breaker","title":"Blue Sea 100A 285-Series Panel Mount Thermal Circuit Breaker","description":"\u003ch2\u003eCombined 100A DC Switching and Thermal Overcurrent Protection\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eBlue Sea 285-Series 100A Panel Mount Thermal Circuit Breaker\u003c\/strong\u003e delivers reliable overcurrent protection and manual on-off switching in a single, streamlined unit. Engineered for demanding marine, caravan, and off-grid DC electrical systems, this dual-function design eliminates the need for a separate battery switch and fuse holder. By consolidating components, it saves valuable dashboard or distribution panel space while reducing wiring complexity and potential voltage drop points across your heavy-duty electrical circuits.\u003c\/p\u003e\u003cp\u003eDesigned as a direct drop-in replacement for older 185-Series circuit breakers, the 285-Series allows for straightforward system upgrades without requiring new panel cutouts or extensive re-wiring. The flush panel-mount form factor provides a clean, professional finish on dashboards, electrical enclosures, and custom distribution boards.\u003c\/p\u003e\u003ch3\u003eEngineered for Harsh Marine and Automotive Environments\u003c\/h3\u003e\u003cp\u003eStandard automotive circuit breakers can corrode quickly or pose safety hazards when exposed to moisture and fuel vapours. The Blue Sea 285-Series features a weather-resistant construction specifically built to withstand damp, salt-laden marine atmospheres and dusty off-road conditions. Furthermore, it meets strict \u003cstrong\u003eSAE J1171 external ignition protection requirements\u003c\/strong\u003e. This critical safety rating ensures the internal mechanism will not ignite surrounding flammable gases, making it compliant and safe for installation aboard petrol-powered vessels, in boat bilges, and inside caravan battery compartments.\u003c\/p\u003e\u003ch3\u003eIntuitive Operation and Fail-Safe Design\u003c\/h3\u003e\u003cp\u003eManaging high-current 100A loads requires absolute clarity and dependable safety mechanisms. This thermal circuit breaker incorporates a high-visibility yellow reset lever that drops down to provide an immediate visual indication when a circuit has tripped. For routine maintenance or emergency isolation, the recessed red manual trip button allows you to instantly disconnect power to downstream equipment.\u003c\/p\u003e\u003cp\u003eTo prevent catastrophic wire damage or electrical fires during a persistent short circuit, the unit utilises a \u003cstrong\u003etrip-free mechanism\u003c\/strong\u003e. This essential safety feature ensures that the internal contacts cannot be manually held in the closed position while a fault condition still exists, protecting your cabling and expensive appliances from thermal overload.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Function Design:\u003c\/strong\u003e Combines 100A thermal circuit protection and manual on-off circuit switching into one compact unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J1171 Ignition Protected:\u003c\/strong\u003e Safe for installation in petrol engine compartments and enclosed battery boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Safety Mechanism:\u003c\/strong\u003e Cannot be forced or held closed during an active overcurrent fault, reducing the risk of cable damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Status Indication:\u003c\/strong\u003e High-contrast yellow lever visibly shows when the circuit is open, paired with a red push-to-trip button for manual isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather-Resistant Housing:\u003c\/strong\u003e Built to resist moisture and corrosion in marine, 4WD, and off-grid environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-In Compatibility:\u003c\/strong\u003e Shares the exact mounting footprint of the 185-Series for seamless retrofitting.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Guidelines and Exclusions\u003c\/h3\u003e\u003cp\u003eThis 100A thermal breaker is well suited for protecting main DC sub-panels, high-output alternators, dual-battery charging systems, and heavy-duty accessories in 12V, 24V, and 32V applications. Please note an important operational exclusion: \u003cstrong\u003edo not use this breaker as a regular manual switch where high inrush currents are expected\u003c\/strong\u003e, such as directly switching large inverters or windlasses under load, as repeated high-inrush switching can degrade the internal contacts over time.\u003c\/p\u003e\u003ch3\u003eUpgrade Your DC Circuit Protection\u003c\/h3\u003e\u003cp\u003eSecure your vessel, 4WD, or off-grid power system with marine-grade overcurrent protection. Add the Blue Sea 285-Series 100A Panel Mount Circuit Breaker to your setup today for dependable, space-saving electrical safety.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631587524669,"sku":"BS-7087B","price":95.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-100a-thermal-circuit-breaker-bs-7087b.png?v=1792904609","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-100a-285-series-panel-mount-thermal-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}