{"product_id":"blue-sea-systems-300a-battery-terminal-fuse-5190-silver-plated-terminal-with-replaceable-cartridge","title":"Blue Sea Systems 300A Battery Terminal Fuse 5190, Silver-Plated Terminal with Replaceable Cartridge","description":"\u003cp\u003e\u003cstrong\u003eThe Blue Sea Systems 5190 is a 300-amp silver battery terminal fuse and terminal block designed to protect high-current battery connections while providing a clean, low-resistance mounting point.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact terminal fuse from Blue Sea Systems combines a heavy-duty 300A fusible link with a rugged silver-plated terminal block for marine, automotive, and off-grid battery systems. Built to fit standard battery post installations, the 5190 simplifies wiring by merging a protected connection and a serviceable fuse into a single, corrosion-resistant assembly. Its small footprint and straightforward wiring layout make it useful where space is limited but high-current protection is required.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the 5190 protect my battery system?\u003c\/h3\u003e\n\u003cp\u003eThe 5190 uses a replaceable 300-amp fuse element integrated into a terminal block, interrupting dangerous overcurrent before wiring or equipment is damaged. The fuse is positioned directly at the battery terminal to reduce unprotected cable length and quickly isolate faults.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e300-amp fusible element rated for high-current protection\u003c\/li\u003e\n  \u003cli\u003eDirect battery post mounting minimizes unprotected conductor runs\u003c\/li\u003e\n  \u003cli\u003eSilver-plated surfaces for low resistance and improved conductivity\u003c\/li\u003e\n  \u003cli\u003eReplaceable fuse cartridge for simple maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical features and installation details?\u003c\/h3\u003e\n\u003cp\u003eThe unit is a compact terminal block engineered to fit on a battery post and accept large gauge cable lugs. It ships as a single-item package with a small footprint and lightweight construction, making it straightforward to install with standard hand tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eItem dimensions approximately 4.015 x 4.015 x 3.26 inches\u003c\/li\u003e\n  \u003cli\u003ePackage weight about 0.13 pounds; single quantity in box\u003c\/li\u003e\n  \u003cli\u003eSilver finish for corrosion resistance and tight electrical contact\u003c\/li\u003e\n  \u003cli\u003eDesigned to accept heavy-gauge lugs and secure mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich applications is the 5190 best suited for?\u003c\/h3\u003e\n\u003cp\u003eThis terminal fuse is intended for systems that demand a high-current, protected battery connection such as boats, RVs, automotive starting circuits, and small off-grid power installations. It is not a replacement for circuit-level protection in every circuit, but it provides a reliable main battery protection point.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMarine and boating battery banks where space and corrosion resistance matter\u003c\/li\u003e\n  \u003cli\u003eAutomotive and heavy equipment starter battery protection\u003c\/li\u003e\n  \u003cli\u003eSmall off-grid battery arrays and backup power systems\u003c\/li\u003e\n  \u003cli\u003eSituations requiring a single, serviceable high-current disconnect\/fuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Blue Sea Systems 5190 is for DIYers, mechanics, marine electricians, and system builders who need a compact, serviceable 300A protection point at the battery terminal. If you require low-resistance connections, easy fuse service, and a small footprint for high-current circuits, this terminal fuse offers a practical and corrosion-resistant solution.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What amperage does the Blue Sea 5190 support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 5190 uses a 300-amp fuse element for main battery protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I mount the 5190 directly to a battery post?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is designed for direct battery terminal mounting and heavy-gauge cable lugs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":55163888435543,"sku":"B001AFZL9O","price":31.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/blue-sea-systems-5190-front-view.jpg?v=1790347968","url":"https:\/\/britishgarage.co.uk\/products\/blue-sea-systems-300a-battery-terminal-fuse-5190-silver-plated-terminal-with-replaceable-cartridge","provider":"British Garage","version":"1.0","type":"link"}