{"product_id":"blue-sea-30a-medium-duty-push-button-reset-only-circuit-breaker","title":"Blue Sea 30A Medium Duty Push Button Reset-Only Circuit Breaker","description":"\u003ch2\u003eCompact, Weatherproof 30A Circuit Protection for Demanding Electrical Systems\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eBlue Sea Medium Duty 30A Push Button Reset-Only Circuit Breaker\u003c\/strong\u003e delivers dependable overcurrent protection for marine, automotive, and off-grid electrical installations. Part of a specialised medium-duty series designed for loads ranging from 15A to 60A, this specific 30A model is engineered for applications where circuit switching is handled by a separate switch or is not required at all. Whether you are safeguarding main power feeds, branch circuits, or vital 24-hour continuous circuits like bilge pumps and battery chargers, this unit provides robust thermal circuit protection when your system needs it most.\u003c\/p\u003e\u003ch3\u003eEngineered for Safety and Trip-Free Reliability\u003c\/h3\u003e\u003cp\u003eElectrical faults in mobile and marine environments require immediate, uncompromised intervention to prevent wire insulation damage and thermal hazards. This 30A circuit breaker features a specialised \u003cstrong\u003etrip-free design\u003c\/strong\u003e, meaning the internal mechanism cannot be manually held in the 'ON' position during an active fault-current condition. Even if the red push-button actuator is physically held down, the breaker will trip and isolate the circuit until the overload is resolved. Once the fault is cleared, the straightforward push-to-reset operation restores power quickly without the need to source and replace blown fuses.\u003c\/p\u003e\u003ch3\u003eBuilt for Harsh Marine and Off-Grid Environments\u003c\/h3\u003e\u003cp\u003eStandard residential or low-grade automotive breakers often fail prematurely when exposed to moisture, vibration, and corrosive coastal air. The Blue Sea BS-2140B is purpose-built with a \u003cstrong\u003eweatherproof and ignition-protected housing\u003c\/strong\u003e, making it safe for installation in engine rooms, damp lockers, and exposed marine dash panels, Including petrol-powered boat compartments. Its compact footprint and integrated metal mounting faceplate allow for high-density circuit protection configurations, saving valuable space in tight electrical cabinets, 4WD dual-battery canopies, and caravan power distribution boards.\u003c\/p\u003e\u003ch3\u003eStreamlined, Frustration-Free Installation\u003c\/h3\u003e\u003cp\u003eWorking inside cramped electrical enclosures or boat hulls often leads to dropped hardware and loose connections over time. To solve this common installation challenge, Blue Sea Systems has equipped the side-mounted terminal studs with \u003cstrong\u003ecaptive star lock washers\u003c\/strong\u003e. These integrated washers meet strict anti-rotation requirements to keep your heavy-duty cable lugs securely fastened under high vibration, while completely eliminating the frustration of handling tiny, easily lost parts during fit-out.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated 30A Overcurrent Protection:\u003c\/strong\u003e Ideal for main, branch, or 24-hour continuous circuits where switching is managed elsewhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherproof \u0026amp; Ignition Protected:\u003c\/strong\u003e Sealed construction resists moisture ingress and is safe for installation in marine engine compartments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Internal Mechanism:\u003c\/strong\u003e Ensures the circuit cannot be forced to remain closed during a dangerous overcurrent or short-circuit event.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaptive Star Lock Washers:\u003c\/strong\u003e Prevents terminal rotation under vibration and stops small hardware from dropping into bilges or behind panels during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Density Compact Profile:\u003c\/strong\u003e Robust metal mounting faceplate supports neat, space-saving multi-breaker arrays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush-to-Reset Actuator:\u003c\/strong\u003e Simple manual reset button eliminates the need to carry spare fuses on board.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Vessels:\u003c\/strong\u003e Protecting 24-hour bilge pump circuits, stereo memory feeds, windlasses, or sub-panel branch feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaravans \u0026amp; Motorhomes:\u003c\/strong\u003e Securing DC-DC charger inputs, solar controller outputs, and auxiliary appliance distribution hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4WD \u0026amp; Commercial Vehicles:\u003c\/strong\u003e Safeguarding winches, air compressors, and canopy power setups against dead shorts and overloads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUpgrade Your System's Circuit Protection\u003c\/h3\u003e\u003cp\u003eEnsure your critical wiring and electrical appliances are protected against overloads and short circuits. Add the Blue Sea 30A Push Button Reset-Only Circuit Breaker to your setup today for professional-grade, weatherproof reliability across all your marine and off-grid applications.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631446622269,"sku":"BS-2140B","price":86.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-30a-push-button-reset-circuit-breaker-bs-2140b.png?v=1792905758","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-30a-medium-duty-push-button-reset-only-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}