{"product_id":"blue-sea-70a-285-series-surface-mount-thermal-circuit-breaker","title":"Blue Sea 70A 285-Series Surface Mount Thermal Circuit Breaker","description":"\u003ch2\u003eHeavy-Duty 70A Circuit Protection and Switching for Marine and Off-Grid DC Systems\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBlue Sea 285-Series 70A Surface Mount Thermal Circuit Breaker\u003c\/strong\u003e delivers dual-function efficiency by combining reliable overcurrent protection and manual switching into a single, compact device. Designed specifically for demanding marine, 4WD, and off-grid electrical environments, this unit eliminates the need for separate inline fuse holders and isolation switches. Whether you are protecting secondary battery banks, auxiliary distribution panels, or high-draw DC appliances, the 285-Series offers a streamlined, professional solution for managing your electrical circuits.\u003c\/p\u003e\n\n\u003ch3\u003eEngineered for Harsh Marine and Automotive Environments\u003c\/h3\u003e\n\u003cp\u003eElectrical components installed in boats, caravans, and four-wheel drives are regularly exposed to moisture, vibration, and temperature extremes. This circuit breaker features a weather-resistant construction that shields internal mechanisms from dust and water splashes. Furthermore, it meets stringent \u003cstrong\u003eSAE J1171 external ignition protection\u003c\/strong\u003e standards. This makes it safe for installation aboard petrol-powered vessels and in battery compartments where explosive gases may accumulate, significantly reducing the risk of ignition during a thermal trip event.\u003c\/p\u003e\n\u003cp\u003eTo ensure long-term durability and minimal voltage drop, the unit is equipped with corrosion-resistant stainless steel terminal studs. It also includes flexible red and black terminal insulator caps, which fit snugly over the connections to prevent accidental short circuits caused by shifting cargo, tools, or stray wiring in tight enclosures.\u003c\/p\u003e\n\n\u003ch3\u003eIntuitive Operation and Trip-Free Safety\u003c\/h3\u003e\n\u003cp\u003eTroubleshooting electrical faults in poorly lit lockers or engine bays is simplified thanks to the high-visibility yellow reset lever. When an overcurrent event occurs, the lever swings open to provide immediate visual confirmation that the circuit has tripped. To manually isolate the circuit for maintenance or storage, simply press the integrated red trip button for instant disconnection.\u003c\/p\u003e\n\u003cp\u003eFor enhanced system safety, the breaker utilises a \u003cstrong\u003etrip-free design\u003c\/strong\u003e. This vital safety feature ensures that the internal contacts cannot be manually held closed while a fault or overcurrent condition persists. This prevents catastrophic wire damage, melted insulation, and potential electrical fires that can occur when using inferior circuit protection devices.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Function Design:\u003c\/strong\u003e Combines 70A thermal circuit protection and manual on\/off switching in one compact unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE J1171 Ignition Protected:\u003c\/strong\u003e Safe for installation in marine engine bays, bilges, and enclosed battery boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Mechanism:\u003c\/strong\u003e Cannot be forced to stay closed during an active electrical fault, protecting cabling and equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Status Indication:\u003c\/strong\u003e High-contrast yellow reset lever clearly shows when the circuit is open, alongside a red push-to-trip button.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather-Resistant Build:\u003c\/strong\u003e Engineered to withstand moisture, salt spray, and vibration in marine and off-road applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtected Connections:\u003c\/strong\u003e Includes stainless steel terminal studs and flexible insulator boots to guard against accidental short circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Installation:\u003c\/strong\u003e Surface-mount form factor with integrated mounting holes allows for secure attachment to flat panels and bulkheads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Notes and System Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe Blue Sea 285-Series is well-suited for protecting main feed lines, DC-DC chargers, solar charge controllers, and medium-duty inverters across 12V, 24V, and 48V DC architectures. Because it is a resettable thermal device, you no longer need to carry spare fuses or struggle with replacing blown links in the field.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eImportant Application Note: While this unit functions effectively as a circuit disconnect switch, it should not be used for frequent switching of loads where high inrush currents are expected, such as electric winches or heavy motor loads.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eUpgrade Your Electrical Safety\u003c\/h3\u003e\n\u003cp\u003eProtect your vessel, caravan, or 4WD electrical system with dependable, marine-grade hardware. Add the Blue Sea 285-Series 70A Surface Mount Circuit Breaker to your setup today for safe, resettable power management.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631595290685,"sku":"BS-7185B","price":95.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-70a-surface-mount-circuit-breaker-bs-7185b.png?v=1792904663","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-70a-285-series-surface-mount-thermal-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}