{"product_id":"blue-sea-50a-a-series-single-pole-toggle-circuit-breaker-white","title":"Blue Sea 50A A-Series Single Pole Toggle Circuit Breaker - White","description":"\u003ch2\u003eIntegrated Magnetic Hydraulic Switching and Circuit Protection\u003c\/h2\u003e\u003ch3\u003eDependable 50A Circuit Breaker for Marine, RV, and Off-Grid Electrical Panels\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eBlue Sea A-Series 50A Single-Pole Toggle Circuit Breaker\u003c\/strong\u003e delivers industry-standard electrical protection and manual switching in a single, compact device. Designed specifically for integration into Blue Sea Systems electrical distribution panels and custom switchboards, this component eliminates the need to wire separate switches and fuse holders. By consolidating your power distribution setup, it reduces potential failure points, simplifies wiring harnesses, and saves valuable dashboard or bulkhead space in tight installations.\u003c\/p\u003e\u003cp\u003eEngineered for demanding environments, this \u003cstrong\u003e50A circuit breaker\u003c\/strong\u003e is ideal for marine vessels, caravans, 4WD canopies, and off-grid power systems where reliable overcurrent protection is critical for high-draw appliances and sub-circuits.\u003c\/p\u003e\u003ch3\u003eWhy Choose a Magnetic Hydraulic Circuit Breaker?\u003c\/h3\u003e\u003cp\u003eUnlike standard thermal circuit breakers that rely on heat-sensitive bimetallic strips, the Blue Sea A-Series utilises a precision \u003cstrong\u003emagnetic hydraulic mechanism\u003c\/strong\u003e. Standard thermal breakers can suffer from nuisance tripping when installed in hot engine bays, enclosed electrical cabinets, or harsh Australian climates because high ambient temperatures affect their trip threshold. Conversely, a magnetic hydraulic breaker responds solely to actual current flow through a magnetic coil and a fluid-damped core.\u003c\/p\u003e\u003cp\u003eThis advanced design ensures that the 50A trip curve remains stable and predictable across a wide range of operating temperatures. Furthermore, the internal fluid damping provides a controlled time delay, allowing harmless temporary inrush currents (such as starting a pump or inverter charge cycle) to pass without tripping, while reacting instantly to severe short circuits.\u003c\/p\u003e\u003ch3\u003eEnhanced Safety with Trip-Free Operation\u003c\/h3\u003e\u003cp\u003eSafety is paramount when managing high-amperage DC or AC electrical circuits. The Blue Sea BS-7230B incorporates a mechanical \u003cstrong\u003etrip-free design\u003c\/strong\u003e. In the event of a dangerous overload or short-circuit fault, the internal mechanism will disconnect the circuit even if the white toggle actuator is physically held or jammed in the ON position. This critical safety feature mitigates the risk of melted wiring insulation, damaged electronics, and electrical fires by ensuring the fault must be cleared before power can be restored.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Function Design:\u003c\/strong\u003e Combines manual ON\/OFF circuit switching with reliable 50A overcurrent protection in one unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Hydraulic Mechanism:\u003c\/strong\u003e Provides consistent, temperature-stable trip performance immune to ambient heat fluctuations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Safety:\u003c\/strong\u003e Internal contacts cannot be held closed manually during an active fault-current condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Visual Status:\u003c\/strong\u003e High-visibility white toggle actuator features a clearly marked 50A rating and distinct OFF position indicator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Panel Mounting:\u003c\/strong\u003e Equipped with durable threaded brass inserts for secure, vibration-resistant front panel installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBuilt for Demanding Mobile and Marine Applications\u003c\/h3\u003e\u003cp\u003eInferior circuit protection devices often suffer from loose terminals, brittle plastics, and inconsistent trip tolerances under constant vibration. The Blue Sea A-Series is constructed with a heavy-duty housing and robust \u003cstrong\u003ebrass mounting inserts\u003c\/strong\u003e to withstand the continuous shock and vibration experienced in marine hulls and corrugated off-road tracks. The front actuator face clearly displays the 50A current rating for rapid circuit identification during troubleshooting, while the side-mounted technical label details regulatory compliance and electrical ratings for straightforward inspection.\u003c\/p\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMain or branch circuit protection in marine AC\/DC electrical panels\u003c\/li\u003e\n\u003cli\u003eHigh-draw 12V and 24V distribution boards in caravans, motorhomes, and camper trailers\u003c\/li\u003e\n\u003cli\u003eProtecting windlasses, pumps, lighting arrays, and auxiliary battery circuits\u003c\/li\u003e\n\u003cli\u003eCustom off-grid solar control cabinets and mobile service vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUpgrade Your Electrical Panel Protection\u003c\/h3\u003e\u003cp\u003eEnsure your electrical distribution system is protected against overloads and short circuits without the hassle of replacing blown fuses. Add the \u003cstrong\u003eBlue Sea A-Series 50A Single-Pole Toggle Circuit Breaker\u003c\/strong\u003e to your panel setup today for professional-grade switching and dependable circuit safety.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631610134589,"sku":"BS-7230B","price":32.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-50a-toggle-circuit-breaker-bs-7230b.png?v=1792905175","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-50a-a-series-single-pole-toggle-circuit-breaker-white","provider":"Solar 4 RVs","version":"1.0","type":"link"}