{"product_id":"blue-sea-250a-c-series-triple-pole-flat-rocker-circuit-breaker","title":"Blue Sea 250A C-Series Triple-Pole Flat Rocker Circuit Breaker","description":"\u003ch2\u003eHigh-Amperage Switching and Overcurrent Protection for Demanding Electrical Systems\u003c\/h2\u003e\n\u003cp\u003eManaging high-current circuits in marine, off-grid, and heavy-duty vehicle setups requires uncompromising reliability. The \u003cstrong\u003eBlue Sea C-Series 250A Triple-Pole Flat Rocker Circuit Breaker\u003c\/strong\u003e integrates seamless ON\/OFF manual switching with dependable overcurrent protection in a single, compact panel-mounted unit. Specifically engineered to handle substantial inductive and resistive loads, this heavy-duty breaker is an essential component for safeguarding large power inverters, marine bow thrusters, and electric windlasses.\u003c\/p\u003e\n\u003cp\u003eBy combining switching and circuit protection into one device, system builders can simplify wiring layouts, reduce panel space requirements, and eliminate the need for separate high-amperage battery switches and external fuse blocks. Unlike standard inline fuses that require spare parts and tools to replace after a fault, this resettable circuit breaker allows you to restore power safely and quickly once the underlying electrical issue is resolved.\u003c\/p\u003e\n\n\u003ch3\u003eEngineered for Safety: Trip-Free and Flush Rocker Design\u003c\/h3\u003e\n\u003cp\u003eWhen protecting circuits carrying up to 250A, operational safety is paramount. This C-Series breaker incorporates an internal \u003cstrong\u003etrip-free mechanism\u003c\/strong\u003e, a critical safety feature ensuring the internal contacts cannot be manually held closed during an active overcurrent fault. If an electrical overload or short circuit persists, the breaker will trip internally even if the external actuator is physically held in the ON position, mitigating the risk of severe cable overheating, equipment damage, or electrical fires.\u003c\/p\u003e\n\u003cp\u003eFor daily usability in dynamic environments like boat helms, 4WD canopies, and caravan electrical lockers, the ergonomic flat rocker actuator is designed to sit completely flush with the mounting bezel when in the ON position. This low-profile geometry prevents accidental switching caused by bumps, snagged clothing, or shifting gear. When the circuit is manually switched off or automatically trips due to a fault, a high-visibility white colour segment on the actuator clearly indicates the OFF state for immediate visual diagnostics.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Function Operation:\u003c\/strong\u003e Combines heavy-duty 250A circuit protection and manual ON\/OFF isolation into a single panel-mounted footprint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParalleled Triple-Pole Architecture:\u003c\/strong\u003e Utilises three internal poles bussed together in parallel to reliably share and manage high-amperage DC loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlush-Mount Flat Rocker:\u003c\/strong\u003e Actuator sits flush in the ON position to eliminate the risk of inadvertent circuit interruption in tight spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFail-Safe Trip-Free Design:\u003c\/strong\u003e Internal mechanism trips independently of the external rocker, preventing operators from forcing a live fault circuit closed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Bus Termination:\u003c\/strong\u003e Paralleled poles terminate to a robust 5\/16-inch (approx. 7.9mm \/ M8) stud on the bus, accommodating heavy-gauge cable lugs for low-resistance connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Visual Status:\u003c\/strong\u003e High-contrast colour actuator segment provides instant confirmation when the circuit is OFF or tripped.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Panel Mounting:\u003c\/strong\u003e Equipped with brass threaded inserts for secure, vibration-resistant front-panel installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuilt for High-Load Marine and Off-Grid Applications\u003c\/h3\u003e\n\u003cp\u003eHigh-draw appliances demand robust termination points to prevent voltage drop and thermal buildup at the connection interface. The paralleled poles of the BS-7477B feature a heavy-duty 5\/16-inch (approx. 7.9mm \/ M8) terminal stud on the busbar, engineered to securely land large battery and inverter cables. Furthermore, the precision brass threaded mounting points ensure the unit remains firmly anchored to your switchboard or distribution panel, even when subjected to harsh marine pounding or corrugated off-road tracks.\u003c\/p\u003e\n\u003cp\u003eWhether you are commissioning a commercial vessel, upgrading a catamaran's thruster system, or building a high-capacity lithium battery bank for an off-grid motorhome, this Blue Sea Systems circuit breaker delivers professional-grade circuit management:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInverter Protection:\u003c\/strong\u003e Safely isolate and protect high-wattage DC-to-AC power inverters in caravans, RVs, and tiny homes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Propulsion \u0026amp; Anchoring:\u003c\/strong\u003e Ideal primary protection for high-surge bow thrusters, stern thrusters, and heavy anchor windlasses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinch \u0026amp; Hydraulic Systems:\u003c\/strong\u003e Reliable overcurrent defence for industrial winches, hydraulic pumps, and auxiliary vehicle equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Bank Isolation:\u003c\/strong\u003e Acts as a dependable main circuit breaker and master disconnect switch for high-output alternator and battery setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUpgrade Your High-Current Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eEquip your electrical distribution panel with the Blue Sea C-Series 250A Triple-Pole Flat Rocker Circuit Breaker for safe, resettable, and space-saving power management. Add this heavy-duty breaker to your system build today to protect your critical high-load equipment.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631642083389,"sku":"BS-7477B","price":356.24,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-250a-triple-pole-rocker-circuit-breaker-bs-7477b.png?v=1792905330","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-250a-c-series-triple-pole-flat-rocker-circuit-breaker","provider":"Solar 4 RVs","version":"1.0","type":"link"}