{"product_id":"blue-sea-fuse-class-t-350a","title":"Blue Sea 350A Class T Fuse","description":"\u003ch2\u003eHigh-Performance Circuit Protection for Lithium Banks and Inverters\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Blue Sea utilises Eaton’s Bussmann™ series Limitron™ JJN Class T fast-acting fuses.\u003c\/p\u003e \u003cp\u003eAs modern mobile and off-grid power systems evolve, particularly with the widespread adoption of \u003cstrong\u003eLithium Iron Phosphate (LiFePO4)\u003c\/strong\u003e batteries, the requirement for robust, professional-grade circuit protection has never been more critical. The \u003cstrong\u003eBlue Sea 350A Class T Fuse\u003c\/strong\u003e serves as the ultimate safety barrier for your high-capacity DC system. Engineered to handle the immense energy potential of large battery banks, this Class T fuse provides a level of protection that standard circuit breakers and ANL fuses simply cannot match.\u003c\/p\u003e \u003cp\u003eWhether you are outfitting a marine vessel, a heavy-duty RV, or a remote off-grid installation, ensuring your main battery line is fused correctly is the first step in system safety. This fuse is specifically designed to interrupt catastrophic faults instantly, preventing equipment damage and significantly reducing fire risks associated with short circuits in high-amperage systems.\u003c\/p\u003e \u003ch3\u003eWhy Class T is Critical for Lithium Batteries\u003c\/h3\u003e \u003cp\u003eOne of the defining characteristics of lithium battery technology is its incredibly low internal resistance. In the event of a short circuit, a lithium bank can discharge thousands of amps almost instantaneously. Standard fuses often lack the necessary \u003cstrong\u003eInterrupt Rating (AIC)\u003c\/strong\u003e to safely break this massive current arc, which can lead to continued arcing and potential system meltdown.\u003c\/p\u003e \u003cp\u003eThis \u003cstrong\u003eBlue Sea 350A Class T Fuse\u003c\/strong\u003e features a massive \u003cstrong\u003e20,000 Amp Interrupt Capacity (AIC)\u003c\/strong\u003e at 125V DC. This means it can safely and reliably stop high-energy faults that would overwhelm lesser protection devices. For any system utilizing lithium batteries, upgrading to a Class T main fuse is not just a recommendation—it is an essential safety requirement to ensure the arc is extinguished immediately.\u003c\/p\u003e \u003ch3\u003eThe Standard for High-Output Inverters\u003c\/h3\u003e \u003cp\u003eLeading inverter manufacturers consistently recommend Class T fuses for their high-speed response characteristics. Large inverters and inverter-chargers contain sensitive power electronics that can be damaged in milliseconds during a fault condition. The \u003cstrong\u003efast-acting\u003c\/strong\u003e nature of this fuse ensures that the circuit is opened before the current can reach destructive levels that might damage internal components.\u003c\/p\u003e \u003cp\u003eFurthermore, the high interrupt capacity safeguards the inverter against the massive inrush currents and potential short circuits from the battery bank, ensuring that your expensive power conversion equipment remains protected under the most severe fault conditions.\u003c\/p\u003e \u003ch3\u003eMarine-Grade Conductivity and Efficiency\u003c\/h3\u003e \u003cp\u003eIn high-current 12V, 24V, and 48V systems, every bit of voltage drop counts. This fuse is constructed with \u003cstrong\u003esilver-plated copper blades\u003c\/strong\u003e, providing superior conductivity compared to standard tin-plated or bare copper alternatives. This low-resistance design ensures that your system operates at peak efficiency, minimising heat generation at the connection points and delivering maximum power to your loads.\u003c\/p\u003e \u003cp\u003eDesigned for the harsh marine environment, the corrosion-resistant materials ensure long-term reliability even in salt-laden air or high-vibration engine rooms. The robust construction maintains a solid electrical connection, reducing the risk of resistance buildup over time.\u003c\/p\u003e \u003ch3\u003eInstallation and Compatibility\u003c\/h3\u003e \u003cp\u003eThis fuse is designed to fit standard Class T fuse blocks and holders compatible with its frame size. It features precise mounting blades with \u003cstrong\u003e3\/8\" (Approx. M10)\u003c\/strong\u003e mounting holes, allowing for secure, high-torque connections with heavy-duty cable lugs. With a maximum voltage rating of \u003cstrong\u003e125V DC\u003c\/strong\u003e, it is perfectly suited for a wide range of DC voltages, making it a versatile solution for 12V, 24V, and 48V nominal systems.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eHigh Interrupt Capacity:\u003c\/strong\u003e 20,000A AIC rating safely handles the massive surge potential of lithium battery banks.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFast-Acting Response:\u003c\/strong\u003e Extremely quick blow speed protects sensitive inverters and power electronics.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eHigh Efficiency:\u003c\/strong\u003e Silver-plated blades minimize resistance and heat for maximum system performance.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Rated up to 125V DC, suitable for 12V, 24V, and 48V systems.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eSecure Fitment:\u003c\/strong\u003e Designed for heavy-duty fuse blocks with 3\/8\" (Approx. M10) studs.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eEnsure your system meets the highest safety standards. Upgrade to the \u003cstrong\u003eBlue Sea 350A Class T Fuse\u003c\/strong\u003e today for professional-grade protection you can trust.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":55056827810131,"sku":"BS-5120B","price":39.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/class-t-fuse-350a-silver-blades-BS-5120B.jpg?v=1790336355","url":"https:\/\/progradewarehouse.com\/products\/blue-sea-fuse-class-t-350a","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}