{"product_id":"blue-sea-a-series-double-pole-circuit-breaker","title":"Blue Sea A-Series Double Pole Circuit Breaker","description":"\u003ch2\u003eReliable AC Main Circuit Protection for Marine and Off-Grid Electrical Panels\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBlue Sea A Series Double Pole Circuit Breaker (8A)\u003c\/strong\u003e is engineered to deliver both manual switching and precise overcurrent protection within a single, compact device. Designed primarily as an AC main circuit breaker for marine electrical panels, off-grid power systems, and specialised mobile installations, this unit simultaneously disconnects both the active (hot) and neutral lines when tripped or manually switched off. This dual-pole isolation is critical in marine and caravan shore power applications where reversed polarity or stray currents on the neutral conductor can pose significant safety hazards.\u003c\/p\u003e\n\n\u003ch3\u003eAdvanced Magnetic-Hydraulic Operation\u003c\/h3\u003e\n\u003cp\u003eUnlike standard thermal circuit breakers that rely on heat-sensitive bimetallic strips, the Blue Sea A Series utilises a sophisticated \u003cstrong\u003emagnetic-hydraulic mechanism\u003c\/strong\u003e. Standard thermal units can suffer from nuisance tripping when installed in hot engine rooms, enclosed battery lockers, or sun-exposed electrical cabinets, as high ambient temperatures prematurely trigger the thermal element. Conversely, magnetic-hydraulic technology senses only the actual current flowing through the circuit, remaining unaffected by surrounding ambient temperature fluctuations. This ensures consistent, predictable protection at the rated 8A capacity while incorporating a fluid-damped delay to tolerate harmless, momentary inrush currents during appliance start-up.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Technical Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8A Rated Capacity:\u003c\/strong\u003e Clearly marked 8A rating provides targeted protection for dedicated AC main feeds or sensitive dual-conductor branch circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimultaneous Double-Pole Switching:\u003c\/strong\u003e Mechanically linked internal poles ensure that an overcurrent fault on either line immediately disconnects both conductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Safety Mechanism:\u003c\/strong\u003e Engineered with a trip-free internal latch that cannot be manually held in the ON position while a fault current persists, protecting wiring and connected equipment from severe thermal damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic-Hydraulic Precision:\u003c\/strong\u003e Delivers consistent trip points across varying ambient temperatures without requiring thermal de-rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErgonomic White Toggle Actuator:\u003c\/strong\u003e Features a high-visibility OFF marking for immediate visual confirmation of circuit status in dimly lit switchgear compartments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Brass Threaded Inserts:\u003c\/strong\u003e Facilitates secure, vibration-resistant panel mounting suited to rough marine conditions and corrugated off-road tracks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Global Compliance:\u003c\/strong\u003e Meets stringent American Boat and Yacht Council (ABYC) standards and holds UL 1077 recognition, alongside TUV, CE, and CSA certifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngineered to Mitigate Electrical Risks\u003c\/h3\u003e\n\u003cp\u003eIn marine vessels, RVs, and off-grid cabins, electrical systems are frequently subjected to moisture, salt mist, continuous mechanical vibration, and variable generator or shore power inputs. Using inferior residential-grade switchgear in these environments introduces risks of corrosion, loose terminations, and failure to isolate neutral faults. The Blue Sea A Series mitigates these risks through corrosion-resistant internal components and strict adherence to international marine standards. The integrated switching and circuit protection design also reduces the number of connection points required behind the panel, minimising voltage drop and potential failure points in your wiring harness.\u003c\/p\u003e\n\n\u003ch3\u003eUpgrade Your AC Distribution Panel\u003c\/h3\u003e\n\u003cp\u003eEnsure your vessel or off-grid power system complies with rigorous safety standards while maintaining dependable electrical control. Integrate this 8A magnetic-hydraulic breaker into your AC distribution panel today for professional-grade main circuit isolation and overcurrent defence.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631618195517,"sku":"BS-7299B","price":32.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-a-series-double-pole-circuit-breaker-8a-bs-7299b.png?v=1792904964","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-a-series-double-pole-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}