{"product_id":"blue-sea-50a-a-series-double-pole-toggle-circuit-breaker-white","title":"Blue Sea 50A A-Series Double Pole Toggle Circuit Breaker White","description":"\u003ch2\u003eIntegrated Magnetic-Hydraulic Circuit Protection and Switching\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eBlue Sea A-Series 50A Double-Pole Toggle Circuit Breaker\u003c\/strong\u003e (BS-7242B) offers a dependable solution for complex electrical systems, combining manual switching and overcurrent circuit protection into a single panel-mounted device. Engineered specifically as the industry standard for Blue Sea Systems electrical panels, this unit streamlines dashboard and switchboard layouts by eliminating the need for separate switches and fuse holders.\u003c\/p\u003e\u003cp\u003eFeaturing linked white toggles, the double-pole configuration allows for the simultaneous switching and isolation of two circuits. In AC main circuit protection applications, it safely breaks both the active (hot) and neutral lines at the same time. If an overcurrent fault occurs on either pole, the internal mechanism trips both poles simultaneously, providing comprehensive safety for onboard or off-grid electrical infrastructure.\u003c\/p\u003e\u003ch3\u003eSuperior Magnetic-Hydraulic Design\u003c\/h3\u003e\u003cp\u003eUnlike standard thermal breakers that rely on heat-sensitive bimetallic strips, this A-Series breaker utilises a precision \u003cstrong\u003emagnetic-hydraulic operating mechanism\u003c\/strong\u003e. Standard thermal units can suffer from nuisance tripping when installed in hot engine bays, canopies, or enclosed electrical cabinets. Because a magnetic-hydraulic breaker responds only to actual current draw rather than ambient temperature fluctuations, it delivers consistent, predictable 50A protection regardless of the surrounding environment.\u003c\/p\u003e\u003ch3\u003eEngineered for Safety and Compliance\u003c\/h3\u003e\u003cp\u003eWhen managing high-amperage DC or AC distribution, mitigating fire and equipment risks is critical. This breaker incorporates a mechanical \u003cstrong\u003etrip-free design\u003c\/strong\u003e, meaning the contacts cannot be manually held in the ON position while a fault current is present. Even if the toggle actuator is physically held or blocked, the internal mechanism will disengage to interrupt the fault, protecting downstream wiring and appliances from severe thermal damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Functionality:\u003c\/strong\u003e Combines heavy-duty 50A circuit protection and manual ON\/OFF switching in one compact unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimultaneous Double-Pole Action:\u003c\/strong\u003e Mechanically linked white toggles break both poles together for safe AC main isolation or dual-circuit management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature-Stable Operation:\u003c\/strong\u003e Magnetic-hydraulic design prevents derating or false tripping in high-temperature marine and automotive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Safety Mechanism:\u003c\/strong\u003e Internal contacts disengage during an overload even if the toggle is held in the ON position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Panel Mounting:\u003c\/strong\u003e Built with robust brass threaded inserts for reliable integration into custom dashboards and distribution panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Compliance:\u003c\/strong\u003e Meets rigorous international safety standards including ABYC, UL 1077, TUV, CE, and CSA certifications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cp\u003eBuilt to withstand harsh marine and mobile conditions, the BS-7242B is widely trusted by marine electricians, caravan builders, and off-grid system integrators. Its compliance with American Boat and Yacht Council (ABYC) standards makes it a preferred choice for boat builders requiring safe AC shore power main breakers or high-capacity DC sub-panel isolation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Electrical Panels:\u003c\/strong\u003e Ideal as an AC main circuit breaker to isolate both active and neutral conductors on boats and yachts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaravans, RVs, and Motorhomes:\u003c\/strong\u003e Provides reliable overcurrent protection for 12V, 24V, or 240V AC distribution boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist Service Vehicles:\u003c\/strong\u003e Suits dual-battery systems and inverter-charger setups in commercial trucks and emergency vehicles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUpgrade Your Electrical Panel\u003c\/h3\u003e\u003cp\u003eEnsure your electrical distribution system is protected by industry-compliant hardware. Add the Blue Sea A-Series 50A Double-Pole Circuit Breaker to your panel build for reliable, temperature-stable circuit protection and effortless switching.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631613378621,"sku":"BS-7242B","price":77.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-a-series-50a-double-pole-toggle-breaker-bs-7242b.png?v=1792905146","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-50a-a-series-double-pole-toggle-circuit-breaker-white","provider":"Solar 4 RVs","version":"1.0","type":"link"}