{"product_id":"blue-sea-50a-medium-duty-push-button-reset-only-circuit-breaker","title":"Blue Sea 50A Medium Duty Push Button Reset-Only Circuit Breaker","description":"\u003ch2\u003eReliable Weatherproof and Ignition-Protected 50A Overcurrent Protection\u003c\/h2\u003e\n\u003cp\u003eIn demanding marine, automotive, and off-grid DC power systems, protecting your electrical cabling and equipment from overcurrent events is essential. The Blue Sea Systems Medium Duty 50A Push Button Circuit Breaker delivers dependable thermal circuit protection specifically engineered for applications where circuit switching is handled elsewhere, or where continuous 24-hour protection is required.\u003c\/p\u003e\n\u003cp\u003eUnlike standard fuses that require replacement parts and tools when an overload occurs, this reset-only circuit breaker allows for rapid power restoration via a prominent manual push button. Its compact footprint enables high-density circuit protection configurations, making it an ideal solution for tight electrical cabinets, marine helm stations, 4WD dual-battery canopies, and caravan power distribution boards.\u003c\/p\u003e\n\n\u003ch3\u003eEngineered for Harsh Environments and Safety Compliance\u003c\/h3\u003e\n\u003cp\u003eStandard automotive circuit breakers often suffer from moisture ingress, terminal loosening under vibration, and corrosion when exposed to coastal or off-road conditions. The Blue Sea BS-2142B addresses these vulnerabilities with a fully weatherproof housing that shields internal components from water spray, dust, and salt mist.\u003c\/p\u003e\n\u003cp\u003eFurthermore, this unit is ignition protected, meaning it is engineered to prevent internal sparks from igniting surrounding flammable gases. This makes it safe for installation aboard petrol-powered boats, within vehicle engine bays, or near vented battery compartments. For added safety, the internal trip-free mechanism ensures the breaker cannot be manually held in the closed (ON) position during an active fault-current condition, preventing severe wire overheating and equipment damage while you troubleshoot the underlying issue.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Technical Advantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset-Only Operation:\u003c\/strong\u003e Prevents accidental manual switching off of critical 24-hour circuits such as bilge pumps, security systems, or battery chargers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Safety Mechanism:\u003c\/strong\u003e Automatically trips and remains open during an ongoing fault, even if the reset button is held down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherproof Construction:\u003c\/strong\u003e Built to withstand exposure to moisture, spray, and harsh marine or off-road environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Protected:\u003c\/strong\u003e Safe for installation in compartments housing petrol engines or flammable vapour sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaptive Star Lock Washers:\u003c\/strong\u003e Integrated into the terminal studs to meet anti-rotation requirements, resist high-vibration loosening, and prevent dropped hardware during installation in tight spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact, High-Density Format:\u003c\/strong\u003e Reinforced mounting holes and a streamlined body allow multiple breakers to be mounted neatly in confined distribution panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications for 50A Reset-Only Protection\u003c\/h3\u003e\n\u003cp\u003eThe 50A rating sits in a highly versatile middle ground for DC power systems. It is frequently utilised for main, branch, or dedicated circuit protection where separate switches or relays control the load. Common applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Electrical Systems:\u003c\/strong\u003e Protecting heavy-duty bilge pumps, windlass control circuits, audio amplifiers, and sub-panel feed lines on boats and yachts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4WD and Caravan Setups:\u003c\/strong\u003e Safeguarding DC-DC battery chargers, air compressors, hydraulic pumps, and auxiliary fuse block main feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial and Industrial Vehicles:\u003c\/strong\u003e Providing vibration-resistant overcurrent protection for warning lights, communication gear, and auxiliary work equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUpgrade Your DC Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eEnsure your critical marine, RV, or automotive electrical circuits are safeguarded against overloads and short circuits. Add the Blue Sea Medium Duty 50A Push Button Circuit Breaker to your system today for durable, compliant, and easily resettable power protection.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631453372477,"sku":"BS-2142B","price":86.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-50a-reset-only-circuit-breaker-bs-2142b.jpg?v=1792905760","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-50a-medium-duty-push-button-reset-only-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}